Get rid of explicit argument-count markings in tab-complete.c.
authorTom Lane
Sat, 22 Sep 2018 00:50:18 +0000 (20:50 -0400)
committerTom Lane
Sat, 22 Sep 2018 00:50:41 +0000 (20:50 -0400)
This replaces the "TailMatchesN" macros with just "TailMatches",
and likewise "HeadMatchesN" becomes "HeadMatches" and "MatchesN"
becomes "Matches".  The various COMPLETE_WITH_LISTn macros are
reduced to COMPLETE_WITH, and the single-item COMPLETE_WITH_CONST
also gets folded into that.  This eliminates a lot of minor
annoyance in writing tab-completion rules.  Usefully, the compiled
code also gets a bit smaller (10% or so, on my machine).

The implementation depends on variadic macros, so we couldn't have
done this before we required C99.

Andres Freund and Thomas Munro; some cosmetic cleanup by me.

Discussion: https://postgr.es/m/[email protected]

src/bin/psql/tab-complete.c
src/include/c.h

index 4c6b0fa09a2cee9573f851ed373013eb8e996c4f..299600652fc5936f56af8bd3f675f9185e35cc91 100644 (file)
@@ -173,10 +173,10 @@ static bool completion_case_sensitive;    /* completion is case sensitive */
  * 2) The results from a schema query you pass it.
  *   We support both simple and versioned schema queries.
  * 3) The items from a null-pointer-terminated list (with or without
- *   case-sensitive comparison; see also COMPLETE_WITH_LISTn, below).
- * 4) A string constant.
- * 5) The list of attributes of the given table (possibly schema-qualified).
- * 6/ The list of arguments to the given function (possibly schema-qualified).
+ *   case-sensitive comparison); if the list is constant you can build it
+ *   with COMPLETE_WITH() or COMPLETE_WITH_CS().
+ * 4) The list of attributes of the given table (possibly schema-qualified).
+ * 5) The list of arguments to the given function (possibly schema-qualified).
  */
 #define COMPLETE_WITH_QUERY(query) \
 do { \
@@ -204,25 +204,34 @@ do { \
    matches = completion_matches(text, complete_from_versioned_schema_query); \
 } while (0)
 
-#define COMPLETE_WITH_LIST_CS(list) \
+#define COMPLETE_WITH_LIST_INT(cs, list) \
 do { \
-   completion_charpp = list; \
-   completion_case_sensitive = true; \
-   matches = completion_matches(text, complete_from_list); \
+   completion_case_sensitive = (cs); \
+   if (!(list)[1]) \
+   { \
+       completion_charp = (list)[0]; \
+       matches = completion_matches(text, complete_from_const); \
+   } \
+   else \
+   { \
+       completion_charpp = (list); \
+       matches = completion_matches(text, complete_from_list); \
+   } \
 } while (0)
 
-#define COMPLETE_WITH_LIST(list) \
+#define COMPLETE_WITH_LIST(list) COMPLETE_WITH_LIST_INT(false, list)
+#define COMPLETE_WITH_LIST_CS(list) COMPLETE_WITH_LIST_INT(true, list)
+
+#define COMPLETE_WITH(...) \
 do { \
-   completion_charpp = list; \
-   completion_case_sensitive = false; \
-   matches = completion_matches(text, complete_from_list); \
+   static const char *const list[] = { __VA_ARGS__, NULL }; \
+   COMPLETE_WITH_LIST(list); \
 } while (0)
 
-#define COMPLETE_WITH_CONST(string) \
+#define COMPLETE_WITH_CS(...) \
 do { \
-   completion_charp = string; \
-   completion_case_sensitive = false; \
-   matches = completion_matches(text, complete_from_const); \
+   static const char *const list[] = { __VA_ARGS__, NULL }; \
+   COMPLETE_WITH_LIST_CS(list); \
 } while (0)
 
 #define COMPLETE_WITH_ATTR(relation, addon) \
@@ -300,91 +309,6 @@ do { \
    matches = completion_matches(text, complete_from_query); \
 } while (0)
 
-/*
- * These macros simplify use of COMPLETE_WITH_LIST for short, fixed lists.
- * There is no COMPLETE_WITH_LIST1; use COMPLETE_WITH_CONST for that case.
- */
-#define COMPLETE_WITH_LIST2(s1, s2) \
-do { \
-   static const char *const list[] = { s1, s2, NULL }; \
-   COMPLETE_WITH_LIST(list); \
-} while (0)
-
-#define COMPLETE_WITH_LIST3(s1, s2, s3) \
-do { \
-   static const char *const list[] = { s1, s2, s3, NULL }; \
-   COMPLETE_WITH_LIST(list); \
-} while (0)
-
-#define COMPLETE_WITH_LIST4(s1, s2, s3, s4) \
-do { \
-   static const char *const list[] = { s1, s2, s3, s4, NULL }; \
-   COMPLETE_WITH_LIST(list); \
-} while (0)
-
-#define COMPLETE_WITH_LIST5(s1, s2, s3, s4, s5) \
-do { \
-   static const char *const list[] = { s1, s2, s3, s4, s5, NULL }; \
-   COMPLETE_WITH_LIST(list); \
-} while (0)
-
-#define COMPLETE_WITH_LIST6(s1, s2, s3, s4, s5, s6) \
-do { \
-   static const char *const list[] = { s1, s2, s3, s4, s5, s6, NULL }; \
-   COMPLETE_WITH_LIST(list); \
-} while (0)
-
-#define COMPLETE_WITH_LIST7(s1, s2, s3, s4, s5, s6, s7) \
-do { \
-   static const char *const list[] = { s1, s2, s3, s4, s5, s6, s7, NULL }; \
-   COMPLETE_WITH_LIST(list); \
-} while (0)
-
-#define COMPLETE_WITH_LIST8(s1, s2, s3, s4, s5, s6, s7, s8) \
-do { \
-   static const char *const list[] = { s1, s2, s3, s4, s5, s6, s7, s8, NULL }; \
-   COMPLETE_WITH_LIST(list); \
-} while (0)
-
-#define COMPLETE_WITH_LIST9(s1, s2, s3, s4, s5, s6, s7, s8, s9) \
-do { \
-   static const char *const list[] = { s1, s2, s3, s4, s5, s6, s7, s8, s9, NULL }; \
-   COMPLETE_WITH_LIST(list); \
-} while (0)
-
-#define COMPLETE_WITH_LIST10(s1, s2, s3, s4, s5, s6, s7, s8, s9, s10) \
-do { \
-   static const char *const list[] = { s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, NULL }; \
-   COMPLETE_WITH_LIST(list); \
-} while (0)
-
-/*
- * Likewise for COMPLETE_WITH_LIST_CS.
- */
-#define COMPLETE_WITH_LIST_CS2(s1, s2) \
-do { \
-   static const char *const list[] = { s1, s2, NULL }; \
-   COMPLETE_WITH_LIST_CS(list); \
-} while (0)
-
-#define COMPLETE_WITH_LIST_CS3(s1, s2, s3) \
-do { \
-   static const char *const list[] = { s1, s2, s3, NULL }; \
-   COMPLETE_WITH_LIST_CS(list); \
-} while (0)
-
-#define COMPLETE_WITH_LIST_CS4(s1, s2, s3, s4) \
-do { \
-   static const char *const list[] = { s1, s2, s3, s4, NULL }; \
-   COMPLETE_WITH_LIST_CS(list); \
-} while (0)
-
-#define COMPLETE_WITH_LIST_CS5(s1, s2, s3, s4, s5) \
-do { \
-   static const char *const list[] = { s1, s2, s3, s4, s5, NULL }; \
-   COMPLETE_WITH_LIST_CS(list); \
-} while (0)
-
 /*
  * Assembly instructions for schema queries
  */
@@ -1142,9 +1066,9 @@ initialize_readline(void)
 #define MatchAnyExcept(pattern)  ("!" pattern)
 
 static bool
-word_matches_internal(const char *pattern,
-                     const char *word,
-                     bool case_sensitive)
+word_matches(const char *pattern,
+            const char *word,
+            bool case_sensitive)
 {
    size_t      wordlen;
 
@@ -1157,7 +1081,7 @@ word_matches_internal(const char *pattern,
 
    /* Handle negated patterns from the MatchAnyExcept macro. */
    if (*pattern == '!')
-       return !word_matches_internal(pattern + 1, word, case_sensitive);
+       return !word_matches(pattern + 1, word, case_sensitive);
 
    /* Else consider each alternative in the pattern. */
    wordlen = strlen(word);
@@ -1204,24 +1128,105 @@ word_matches_internal(const char *pattern,
 }
 
 /*
- * There are enough matching calls below that it seems worth having these two
- * interface routines rather than including a third parameter in every call.
+ * Implementation of TailMatches and TailMatchesCS macros: do the last N words
+ * in previous_words match the variadic arguments?
  *
- * word_matches --- match case-insensitively.
+ * The array indexing might look backwards, but remember that
+ * previous_words[0] contains the *last* word on the line, not the first.
  */
 static bool
-word_matches(const char *pattern, const char *word)
+TailMatchesImpl(bool case_sensitive,
+               int previous_words_count, char **previous_words,
+               int narg,...)
 {
-   return word_matches_internal(pattern, word, false);
+   va_list     args;
+
+   if (previous_words_count < narg)
+       return false;
+
+   va_start(args, narg);
+
+   for (int argno = 0; argno < narg; argno++)
+   {
+       const char *arg = va_arg(args, const char *);
+
+       if (!word_matches(arg, previous_words[narg - argno - 1],
+                         case_sensitive))
+       {
+           va_end(args);
+           return false;
+       }
+   }
+
+   va_end(args);
+
+   return true;
+}
+
+/*
+ * Implementation of Matches and MatchesCS macros: do all of the words
+ * in previous_words match the variadic arguments?
+ */
+static bool
+MatchesImpl(bool case_sensitive,
+           int previous_words_count, char **previous_words,
+           int narg,...)
+{
+   va_list     args;
+
+   if (previous_words_count != narg)
+       return false;
+
+   va_start(args, narg);
+
+   for (int argno = 0; argno < narg; argno++)
+   {
+       const char *arg = va_arg(args, const char *);
+
+       if (!word_matches(arg, previous_words[narg - argno - 1],
+                         case_sensitive))
+       {
+           va_end(args);
+           return false;
+       }
+   }
+
+   va_end(args);
+
+   return true;
 }
 
 /*
- * word_matches_cs --- match case-sensitively.
+ * Implementation of HeadMatches and HeadMatchesCS macros: do the first N
+ * words in previous_words match the variadic arguments?
  */
 static bool
-word_matches_cs(const char *pattern, const char *word)
+HeadMatchesImpl(bool case_sensitive,
+               int previous_words_count, char **previous_words,
+               int narg,...)
 {
-   return word_matches_internal(pattern, word, true);
+   va_list     args;
+
+   if (previous_words_count < narg)
+       return false;
+
+   va_start(args, narg);
+
+   for (int argno = 0; argno < narg; argno++)
+   {
+       const char *arg = va_arg(args, const char *);
+
+       if (!word_matches(arg, previous_words[previous_words_count - argno - 1],
+                         case_sensitive))
+       {
+           va_end(args);
+           return false;
+       }
+   }
+
+   va_end(args);
+
+   return true;
 }
 
 /*
@@ -1275,164 +1280,35 @@ psql_completion(const char *text, int start, int end)
 #define prev8_wd  (previous_words[7])
 #define prev9_wd  (previous_words[8])
 
-   /* Macros for matching the last N words before point, case-insensitively. */
-#define TailMatches1(p1) \
-   (previous_words_count >= 1 && \
-    word_matches(p1, prev_wd))
-
-#define TailMatches2(p2, p1) \
-   (previous_words_count >= 2 && \
-    word_matches(p1, prev_wd) && \
-    word_matches(p2, prev2_wd))
-
-#define TailMatches3(p3, p2, p1) \
-   (previous_words_count >= 3 && \
-    word_matches(p1, prev_wd) && \
-    word_matches(p2, prev2_wd) && \
-    word_matches(p3, prev3_wd))
-
-#define TailMatches4(p4, p3, p2, p1) \
-   (previous_words_count >= 4 && \
-    word_matches(p1, prev_wd) && \
-    word_matches(p2, prev2_wd) && \
-    word_matches(p3, prev3_wd) && \
-    word_matches(p4, prev4_wd))
-
-#define TailMatches5(p5, p4, p3, p2, p1) \
-   (previous_words_count >= 5 && \
-    word_matches(p1, prev_wd) && \
-    word_matches(p2, prev2_wd) && \
-    word_matches(p3, prev3_wd) && \
-    word_matches(p4, prev4_wd) && \
-    word_matches(p5, prev5_wd))
-
-#define TailMatches6(p6, p5, p4, p3, p2, p1) \
-   (previous_words_count >= 6 && \
-    word_matches(p1, prev_wd) && \
-    word_matches(p2, prev2_wd) && \
-    word_matches(p3, prev3_wd) && \
-    word_matches(p4, prev4_wd) && \
-    word_matches(p5, prev5_wd) && \
-    word_matches(p6, prev6_wd))
-
-#define TailMatches7(p7, p6, p5, p4, p3, p2, p1) \
-   (previous_words_count >= 7 && \
-    word_matches(p1, prev_wd) && \
-    word_matches(p2, prev2_wd) && \
-    word_matches(p3, prev3_wd) && \
-    word_matches(p4, prev4_wd) && \
-    word_matches(p5, prev5_wd) && \
-    word_matches(p6, prev6_wd) && \
-    word_matches(p7, prev7_wd))
-
-#define TailMatches8(p8, p7, p6, p5, p4, p3, p2, p1) \
-   (previous_words_count >= 8 && \
-    word_matches(p1, prev_wd) && \
-    word_matches(p2, prev2_wd) && \
-    word_matches(p3, prev3_wd) && \
-    word_matches(p4, prev4_wd) && \
-    word_matches(p5, prev5_wd) && \
-    word_matches(p6, prev6_wd) && \
-    word_matches(p7, prev7_wd) && \
-    word_matches(p8, prev8_wd))
-
-#define TailMatches9(p9, p8, p7, p6, p5, p4, p3, p2, p1) \
-   (previous_words_count >= 9 && \
-    word_matches(p1, prev_wd) && \
-    word_matches(p2, prev2_wd) && \
-    word_matches(p3, prev3_wd) && \
-    word_matches(p4, prev4_wd) && \
-    word_matches(p5, prev5_wd) && \
-    word_matches(p6, prev6_wd) && \
-    word_matches(p7, prev7_wd) && \
-    word_matches(p8, prev8_wd) && \
-    word_matches(p9, prev9_wd))
-
-   /* Macros for matching the last N words before point, case-sensitively. */
-#define TailMatchesCS1(p1) \
-   (previous_words_count >= 1 && \
-    word_matches_cs(p1, prev_wd))
-#define TailMatchesCS2(p2, p1) \
-   (previous_words_count >= 2 && \
-    word_matches_cs(p1, prev_wd) && \
-    word_matches_cs(p2, prev2_wd))
-#define TailMatchesCS3(p3, p2, p1) \
-   (previous_words_count >= 3 && \
-    word_matches_cs(p1, prev_wd) && \
-    word_matches_cs(p2, prev2_wd) && \
-    word_matches_cs(p3, prev3_wd))
-#define TailMatchesCS4(p4, p3, p2, p1) \
-   (previous_words_count >= 4 && \
-    word_matches_cs(p1, prev_wd) && \
-    word_matches_cs(p2, prev2_wd) && \
-    word_matches_cs(p3, prev3_wd) && \
-    word_matches_cs(p4, prev4_wd))
+   /* Match the last N words before point, case-insensitively. */
+#define TailMatches(...) \
+   TailMatchesImpl(false, previous_words_count, previous_words, \
+                   VA_ARGS_NARGS(__VA_ARGS__), __VA_ARGS__)
 
-   /*
-    * Macros for matching N words beginning at the start of the line,
-    * case-insensitively.
-    */
-#define Matches1(p1) \
-   (previous_words_count == 1 && \
-    TailMatches1(p1))
-#define Matches2(p1, p2) \
-   (previous_words_count == 2 && \
-    TailMatches2(p1, p2))
-#define Matches3(p1, p2, p3) \
-   (previous_words_count == 3 && \
-    TailMatches3(p1, p2, p3))
-#define Matches4(p1, p2, p3, p4) \
-   (previous_words_count == 4 && \
-    TailMatches4(p1, p2, p3, p4))
-#define Matches5(p1, p2, p3, p4, p5) \
-   (previous_words_count == 5 && \
-    TailMatches5(p1, p2, p3, p4, p5))
-#define Matches6(p1, p2, p3, p4, p5, p6) \
-   (previous_words_count == 6 && \
-    TailMatches6(p1, p2, p3, p4, p5, p6))
-#define Matches7(p1, p2, p3, p4, p5, p6, p7) \
-   (previous_words_count == 7 && \
-    TailMatches7(p1, p2, p3, p4, p5, p6, p7))
-#define Matches8(p1, p2, p3, p4, p5, p6, p7, p8) \
-   (previous_words_count == 8 && \
-    TailMatches8(p1, p2, p3, p4, p5, p6, p7, p8))
-#define Matches9(p1, p2, p3, p4, p5, p6, p7, p8, p9) \
-   (previous_words_count == 9 && \
-    TailMatches9(p1, p2, p3, p4, p5, p6, p7, p8, p9))
+   /* Match the last N words before point, case-sensitively. */
+#define TailMatchesCS(...) \
+   TailMatchesImpl(true, previous_words_count, previous_words, \
+                   VA_ARGS_NARGS(__VA_ARGS__), __VA_ARGS__)
 
-   /*
-    * Macros for matching N words at the start of the line, regardless of
-    * what is after them, case-insensitively.
-    */
-#define HeadMatches1(p1) \
-   (previous_words_count >= 1 && \
-    word_matches(p1, previous_words[previous_words_count - 1]))
-
-#define HeadMatches2(p1, p2) \
-   (previous_words_count >= 2 && \
-    word_matches(p1, previous_words[previous_words_count - 1]) && \
-    word_matches(p2, previous_words[previous_words_count - 2]))
-
-#define HeadMatches3(p1, p2, p3) \
-   (previous_words_count >= 3 && \
-    word_matches(p1, previous_words[previous_words_count - 1]) && \
-    word_matches(p2, previous_words[previous_words_count - 2]) && \
-    word_matches(p3, previous_words[previous_words_count - 3]))
-
-#define HeadMatches4(p1, p2, p3, p4) \
-   (previous_words_count >= 4 && \
-    word_matches(p1, previous_words[previous_words_count - 1]) && \
-    word_matches(p2, previous_words[previous_words_count - 2]) && \
-    word_matches(p3, previous_words[previous_words_count - 3]) && \
-    word_matches(p4, previous_words[previous_words_count - 4]))
-
-#define HeadMatches5(p1, p2, p3, p4, p5) \
-   (previous_words_count >= 5 && \
-    word_matches(p1, previous_words[previous_words_count - 1]) && \
-    word_matches(p2, previous_words[previous_words_count - 2]) && \
-    word_matches(p3, previous_words[previous_words_count - 3]) && \
-    word_matches(p4, previous_words[previous_words_count - 4]) && \
-    word_matches(p5, previous_words[previous_words_count - 5]))
+   /* Match N words representing all of the line, case-insensitively. */
+#define Matches(...) \
+   MatchesImpl(false, previous_words_count, previous_words, \
+               VA_ARGS_NARGS(__VA_ARGS__), __VA_ARGS__)
+
+   /* Match N words representing all of the line, case-sensitively. */
+#define MatchesCS(...) \
+   MatchesImpl(true, previous_words_count, previous_words, \
+               VA_ARGS_NARGS(__VA_ARGS__), __VA_ARGS__)
+
+   /* Match the first N words on the line, case-insensitively. */
+#define HeadMatches(...) \
+   HeadMatchesImpl(false, previous_words_count, previous_words, \
+                   VA_ARGS_NARGS(__VA_ARGS__), __VA_ARGS__)
+
+   /* Match the first N words on the line, case-sensitively. */
+#define HeadMatchesCS(...) \
+   HeadMatchesImpl(true, previous_words_count, previous_words, \
+                   VA_ARGS_NARGS(__VA_ARGS__), __VA_ARGS__)
 
    /* Known command-starting keywords. */
    static const char *const sql_commands[] = {
@@ -1522,369 +1398,350 @@ psql_completion(const char *text, int start, int end)
 
 /* CREATE */
    /* complete with something you can create */
-   else if (TailMatches1("CREATE"))
+   else if (TailMatches("CREATE"))
        matches = completion_matches(text, create_command_generator);
 
 /* DROP, but not DROP embedded in other commands */
    /* complete with something you can drop */
-   else if (Matches1("DROP"))
+   else if (Matches("DROP"))
        matches = completion_matches(text, drop_command_generator);
 
 /* ALTER */
 
    /* ALTER TABLE */
-   else if (Matches2("ALTER", "TABLE"))
+   else if (Matches("ALTER", "TABLE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables,
                                   "UNION SELECT 'ALL IN TABLESPACE'");
 
    /* ALTER something */
-   else if (Matches1("ALTER"))
+   else if (Matches("ALTER"))
        matches = completion_matches(text, alter_command_generator);
    /* ALTER TABLE,INDEX,MATERIALIZED VIEW ALL IN TABLESPACE xxx */
-   else if (TailMatches4("ALL", "IN", "TABLESPACE", MatchAny))
-       COMPLETE_WITH_LIST2("SET TABLESPACE", "OWNED BY");
+   else if (TailMatches("ALL", "IN", "TABLESPACE", MatchAny))
+       COMPLETE_WITH("SET TABLESPACE", "OWNED BY");
    /* ALTER TABLE,INDEX,MATERIALIZED VIEW ALL IN TABLESPACE xxx OWNED BY */
-   else if (TailMatches6("ALL", "IN", "TABLESPACE", MatchAny, "OWNED", "BY"))
+   else if (TailMatches("ALL", "IN", "TABLESPACE", MatchAny, "OWNED", "BY"))
        COMPLETE_WITH_QUERY(Query_for_list_of_roles);
    /* ALTER TABLE,INDEX,MATERIALIZED VIEW ALL IN TABLESPACE xxx OWNED BY xxx */
-   else if (TailMatches7("ALL", "IN", "TABLESPACE", MatchAny, "OWNED", "BY", MatchAny))
-       COMPLETE_WITH_CONST("SET TABLESPACE");
+   else if (TailMatches("ALL", "IN", "TABLESPACE", MatchAny, "OWNED", "BY", MatchAny))
+       COMPLETE_WITH("SET TABLESPACE");
    /* ALTER AGGREGATE,FUNCTION,PROCEDURE,ROUTINE  */
-   else if (Matches3("ALTER", "AGGREGATE|FUNCTION|PROCEDURE|ROUTINE", MatchAny))
-       COMPLETE_WITH_CONST("(");
+   else if (Matches("ALTER", "AGGREGATE|FUNCTION|PROCEDURE|ROUTINE", MatchAny))
+       COMPLETE_WITH("(");
    /* ALTER AGGREGATE,FUNCTION,PROCEDURE,ROUTINE  (...) */
-   else if (Matches4("ALTER", "AGGREGATE|FUNCTION|PROCEDURE|ROUTINE", MatchAny, MatchAny))
+   else if (Matches("ALTER", "AGGREGATE|FUNCTION|PROCEDURE|ROUTINE", MatchAny, MatchAny))
    {
        if (ends_with(prev_wd, ')'))
-           COMPLETE_WITH_LIST3("OWNER TO", "RENAME TO", "SET SCHEMA");
+           COMPLETE_WITH("OWNER TO", "RENAME TO", "SET SCHEMA");
        else
            COMPLETE_WITH_FUNCTION_ARG(prev2_wd);
    }
    /* ALTER PUBLICATION  */
-   else if (Matches3("ALTER", "PUBLICATION", MatchAny))
-       COMPLETE_WITH_LIST5("ADD TABLE", "DROP TABLE", "OWNER TO", "RENAME TO", "SET");
+   else if (Matches("ALTER", "PUBLICATION", MatchAny))
+       COMPLETE_WITH("ADD TABLE", "DROP TABLE", "OWNER TO", "RENAME TO", "SET");
    /* ALTER PUBLICATION  SET */
-   else if (Matches4("ALTER", "PUBLICATION", MatchAny, "SET"))
-       COMPLETE_WITH_LIST2("(", "TABLE");
+   else if (Matches("ALTER", "PUBLICATION", MatchAny, "SET"))
+       COMPLETE_WITH("(", "TABLE");
    /* ALTER PUBLICATION  SET ( */
-   else if (HeadMatches3("ALTER", "PUBLICATION", MatchAny) && TailMatches2("SET", "("))
-       COMPLETE_WITH_CONST("publish");
+   else if (HeadMatches("ALTER", "PUBLICATION", MatchAny) && TailMatches("SET", "("))
+       COMPLETE_WITH("publish");
    /* ALTER SUBSCRIPTION  */
-   else if (Matches3("ALTER", "SUBSCRIPTION", MatchAny))
-       COMPLETE_WITH_LIST7("CONNECTION", "ENABLE", "DISABLE", "OWNER TO",
-                           "RENAME TO", "REFRESH PUBLICATION", "SET");
+   else if (Matches("ALTER", "SUBSCRIPTION", MatchAny))
+       COMPLETE_WITH("CONNECTION", "ENABLE", "DISABLE", "OWNER TO",
+                     "RENAME TO", "REFRESH PUBLICATION", "SET");
    /* ALTER SUBSCRIPTION  REFRESH PUBLICATION */
-   else if (HeadMatches3("ALTER", "SUBSCRIPTION", MatchAny) &&
-            TailMatches2("REFRESH", "PUBLICATION"))
-       COMPLETE_WITH_CONST("WITH (");
+   else if (HeadMatches("ALTER", "SUBSCRIPTION", MatchAny) &&
+            TailMatches("REFRESH", "PUBLICATION"))
+       COMPLETE_WITH("WITH (");
    /* ALTER SUBSCRIPTION  REFRESH PUBLICATION WITH ( */
-   else if (HeadMatches3("ALTER", "SUBSCRIPTION", MatchAny) &&
-            TailMatches4("REFRESH", "PUBLICATION", "WITH", "("))
-       COMPLETE_WITH_CONST("copy_data");
+   else if (HeadMatches("ALTER", "SUBSCRIPTION", MatchAny) &&
+            TailMatches("REFRESH", "PUBLICATION", "WITH", "("))
+       COMPLETE_WITH("copy_data");
    /* ALTER SUBSCRIPTION  SET */
-   else if (Matches4("ALTER", "SUBSCRIPTION", MatchAny, "SET"))
-       COMPLETE_WITH_LIST2("(", "PUBLICATION");
+   else if (Matches("ALTER", "SUBSCRIPTION", MatchAny, "SET"))
+       COMPLETE_WITH("(", "PUBLICATION");
    /* ALTER SUBSCRIPTION  SET ( */
-   else if (HeadMatches3("ALTER", "SUBSCRIPTION", MatchAny) && TailMatches2("SET", "("))
-       COMPLETE_WITH_LIST2("slot_name", "synchronous_commit");
+   else if (HeadMatches("ALTER", "SUBSCRIPTION", MatchAny) && TailMatches("SET", "("))
+       COMPLETE_WITH("slot_name", "synchronous_commit");
    /* ALTER SUBSCRIPTION  SET PUBLICATION */
-   else if (HeadMatches3("ALTER", "SUBSCRIPTION", MatchAny) && TailMatches2("SET", "PUBLICATION"))
+   else if (HeadMatches("ALTER", "SUBSCRIPTION", MatchAny) && TailMatches("SET", "PUBLICATION"))
    {
        /* complete with nothing here as this refers to remote publications */
    }
    /* ALTER SUBSCRIPTION  SET PUBLICATION  */
-   else if (HeadMatches3("ALTER", "SUBSCRIPTION", MatchAny) &&
-            TailMatches3("SET", "PUBLICATION", MatchAny))
-       COMPLETE_WITH_CONST("WITH (");
+   else if (HeadMatches("ALTER", "SUBSCRIPTION", MatchAny) &&
+            TailMatches("SET", "PUBLICATION", MatchAny))
+       COMPLETE_WITH("WITH (");
    /* ALTER SUBSCRIPTION  SET PUBLICATION  WITH ( */
-   else if (HeadMatches3("ALTER", "SUBSCRIPTION", MatchAny) &&
-            TailMatches5("SET", "PUBLICATION", MatchAny, "WITH", "("))
-       COMPLETE_WITH_LIST2("copy_data", "refresh");
+   else if (HeadMatches("ALTER", "SUBSCRIPTION", MatchAny) &&
+            TailMatches("SET", "PUBLICATION", MatchAny, "WITH", "("))
+       COMPLETE_WITH("copy_data", "refresh");
    /* ALTER SCHEMA  */
-   else if (Matches3("ALTER", "SCHEMA", MatchAny))
-       COMPLETE_WITH_LIST2("OWNER TO", "RENAME TO");
+   else if (Matches("ALTER", "SCHEMA", MatchAny))
+       COMPLETE_WITH("OWNER TO", "RENAME TO");
 
    /* ALTER COLLATION  */
-   else if (Matches3("ALTER", "COLLATION", MatchAny))
-       COMPLETE_WITH_LIST3("OWNER TO", "RENAME TO", "SET SCHEMA");
+   else if (Matches("ALTER", "COLLATION", MatchAny))
+       COMPLETE_WITH("OWNER TO", "RENAME TO", "SET SCHEMA");
 
    /* ALTER CONVERSION  */
-   else if (Matches3("ALTER", "CONVERSION", MatchAny))
-       COMPLETE_WITH_LIST3("OWNER TO", "RENAME TO", "SET SCHEMA");
+   else if (Matches("ALTER", "CONVERSION", MatchAny))
+       COMPLETE_WITH("OWNER TO", "RENAME TO", "SET SCHEMA");
 
    /* ALTER DATABASE  */
-   else if (Matches3("ALTER", "DATABASE", MatchAny))
-       COMPLETE_WITH_LIST7("RESET", "SET", "OWNER TO", "RENAME TO",
-                           "IS_TEMPLATE", "ALLOW_CONNECTIONS",
-                           "CONNECTION LIMIT");
+   else if (Matches("ALTER", "DATABASE", MatchAny))
+       COMPLETE_WITH("RESET", "SET", "OWNER TO", "RENAME TO",
+                     "IS_TEMPLATE", "ALLOW_CONNECTIONS",
+                     "CONNECTION LIMIT");
 
    /* ALTER DATABASE  SET TABLESPACE */
-   else if (Matches5("ALTER", "DATABASE", MatchAny, "SET", "TABLESPACE"))
+   else if (Matches("ALTER", "DATABASE", MatchAny, "SET", "TABLESPACE"))
        COMPLETE_WITH_QUERY(Query_for_list_of_tablespaces);
 
    /* ALTER EVENT TRIGGER */
-   else if (Matches3("ALTER", "EVENT", "TRIGGER"))
+   else if (Matches("ALTER", "EVENT", "TRIGGER"))
        COMPLETE_WITH_QUERY(Query_for_list_of_event_triggers);
 
    /* ALTER EVENT TRIGGER  */
-   else if (Matches4("ALTER", "EVENT", "TRIGGER", MatchAny))
-       COMPLETE_WITH_LIST4("DISABLE", "ENABLE", "OWNER TO", "RENAME TO");
+   else if (Matches("ALTER", "EVENT", "TRIGGER", MatchAny))
+       COMPLETE_WITH("DISABLE", "ENABLE", "OWNER TO", "RENAME TO");
 
    /* ALTER EVENT TRIGGER  ENABLE */
-   else if (Matches5("ALTER", "EVENT", "TRIGGER", MatchAny, "ENABLE"))
-       COMPLETE_WITH_LIST2("REPLICA", "ALWAYS");
+   else if (Matches("ALTER", "EVENT", "TRIGGER", MatchAny, "ENABLE"))
+       COMPLETE_WITH("REPLICA", "ALWAYS");
 
    /* ALTER EXTENSION  */
-   else if (Matches3("ALTER", "EXTENSION", MatchAny))
-       COMPLETE_WITH_LIST4("ADD", "DROP", "UPDATE", "SET SCHEMA");
+   else if (Matches("ALTER", "EXTENSION", MatchAny))
+       COMPLETE_WITH("ADD", "DROP", "UPDATE", "SET SCHEMA");
 
    /* ALTER EXTENSION  UPDATE */
-   else if (Matches4("ALTER", "EXTENSION", MatchAny, "UPDATE"))
+   else if (Matches("ALTER", "EXTENSION", MatchAny, "UPDATE"))
    {
        completion_info_charp = prev2_wd;
        COMPLETE_WITH_QUERY(Query_for_list_of_available_extension_versions_with_TO);
    }
 
    /* ALTER EXTENSION  UPDATE TO */
-   else if (Matches5("ALTER", "EXTENSION", MatchAny, "UPDATE", "TO"))
+   else if (Matches("ALTER", "EXTENSION", MatchAny, "UPDATE", "TO"))
    {
        completion_info_charp = prev3_wd;
        COMPLETE_WITH_QUERY(Query_for_list_of_available_extension_versions);
    }
 
    /* ALTER FOREIGN */
-   else if (Matches2("ALTER", "FOREIGN"))
-       COMPLETE_WITH_LIST2("DATA WRAPPER", "TABLE");
+   else if (Matches("ALTER", "FOREIGN"))
+       COMPLETE_WITH("DATA WRAPPER", "TABLE");
 
    /* ALTER FOREIGN DATA WRAPPER  */
-   else if (Matches5("ALTER", "FOREIGN", "DATA", "WRAPPER", MatchAny))
-       COMPLETE_WITH_LIST5("HANDLER", "VALIDATOR", "OPTIONS", "OWNER TO", "RENAME TO");
+   else if (Matches("ALTER", "FOREIGN", "DATA", "WRAPPER", MatchAny))
+       COMPLETE_WITH("HANDLER", "VALIDATOR", "OPTIONS", "OWNER TO", "RENAME TO");
 
    /* ALTER FOREIGN TABLE  */
-   else if (Matches4("ALTER", "FOREIGN", "TABLE", MatchAny))
-   {
-       static const char *const list_ALTER_FOREIGN_TABLE[] =
-       {"ADD", "ALTER", "DISABLE TRIGGER", "DROP", "ENABLE", "INHERIT",
-           "NO INHERIT", "OPTIONS", "OWNER TO", "RENAME", "SET",
-       "VALIDATE CONSTRAINT", NULL};
-
-       COMPLETE_WITH_LIST(list_ALTER_FOREIGN_TABLE);
-   }
+   else if (Matches("ALTER", "FOREIGN", "TABLE", MatchAny))
+       COMPLETE_WITH("ADD", "ALTER", "DISABLE TRIGGER", "DROP", "ENABLE",
+                     "INHERIT", "NO INHERIT", "OPTIONS", "OWNER TO",
+                     "RENAME", "SET", "VALIDATE CONSTRAINT");
 
    /* ALTER INDEX */
-   else if (Matches2("ALTER", "INDEX"))
+   else if (Matches("ALTER", "INDEX"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexes,
                                   "UNION SELECT 'ALL IN TABLESPACE'");
    /* ALTER INDEX  */
-   else if (Matches3("ALTER", "INDEX", MatchAny))
-       COMPLETE_WITH_LIST6("ALTER COLUMN", "OWNER TO", "RENAME TO", "SET",
-                           "RESET", "ATTACH PARTITION");
-   else if (Matches4("ALTER", "INDEX", MatchAny, "ATTACH"))
-       COMPLETE_WITH_CONST("PARTITION");
-   else if (Matches5("ALTER", "INDEX", MatchAny, "ATTACH", "PARTITION"))
+   else if (Matches("ALTER", "INDEX", MatchAny))
+       COMPLETE_WITH("ALTER COLUMN", "OWNER TO", "RENAME TO", "SET",
+                     "RESET", "ATTACH PARTITION");
+   else if (Matches("ALTER", "INDEX", MatchAny, "ATTACH"))
+       COMPLETE_WITH("PARTITION");
+   else if (Matches("ALTER", "INDEX", MatchAny, "ATTACH", "PARTITION"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexes, NULL);
    /* ALTER INDEX  ALTER COLUMN  */
-   else if (Matches6("ALTER", "INDEX", MatchAny, "ALTER", "COLUMN", MatchAny))
-       COMPLETE_WITH_CONST("SET STATISTICS");
+   else if (Matches("ALTER", "INDEX", MatchAny, "ALTER", "COLUMN", MatchAny))
+       COMPLETE_WITH("SET STATISTICS");
    /* ALTER INDEX  SET */
-   else if (Matches4("ALTER", "INDEX", MatchAny, "SET"))
-       COMPLETE_WITH_LIST2("(", "TABLESPACE");
+   else if (Matches("ALTER", "INDEX", MatchAny, "SET"))
+       COMPLETE_WITH("(", "TABLESPACE");
    /* ALTER INDEX  RESET */
-   else if (Matches4("ALTER", "INDEX", MatchAny, "RESET"))
-       COMPLETE_WITH_CONST("(");
+   else if (Matches("ALTER", "INDEX", MatchAny, "RESET"))
+       COMPLETE_WITH("(");
    /* ALTER INDEX  SET|RESET ( */
-   else if (Matches5("ALTER", "INDEX", MatchAny, "RESET", "("))
-       COMPLETE_WITH_LIST8("fillfactor", "recheck_on_update",
-                           "vacuum_cleanup_index_scale_factor",    /* BTREE */
-                           "fastupdate", "gin_pending_list_limit", /* GIN */
-                           "buffering",    /* GiST */
-                           "pages_per_range", "autosummarize"  /* BRIN */
+   else if (Matches("ALTER", "INDEX", MatchAny, "RESET", "("))
+       COMPLETE_WITH("fillfactor", "recheck_on_update",
+                     "vacuum_cleanup_index_scale_factor",  /* BTREE */
+                     "fastupdate", "gin_pending_list_limit",   /* GIN */
+                     "buffering",  /* GiST */
+                     "pages_per_range", "autosummarize"    /* BRIN */
            );
-   else if (Matches5("ALTER", "INDEX", MatchAny, "SET", "("))
-       COMPLETE_WITH_LIST8("fillfactor =", "recheck_on_update =",
-                           "vacuum_cleanup_index_scale_factor =",  /* BTREE */
-                           "fastupdate =", "gin_pending_list_limit =", /* GIN */
-                           "buffering =",  /* GiST */
-                           "pages_per_range =", "autosummarize ="  /* BRIN */
+   else if (Matches("ALTER", "INDEX", MatchAny, "SET", "("))
+       COMPLETE_WITH("fillfactor =", "recheck_on_update =",
+                     "vacuum_cleanup_index_scale_factor =",    /* BTREE */
+                     "fastupdate =", "gin_pending_list_limit =",   /* GIN */
+                     "buffering =",    /* GiST */
+                     "pages_per_range =", "autosummarize ="    /* BRIN */
            );
 
    /* ALTER LANGUAGE  */
-   else if (Matches3("ALTER", "LANGUAGE", MatchAny))
-       COMPLETE_WITH_LIST2("OWNER_TO", "RENAME TO");
+   else if (Matches("ALTER", "LANGUAGE", MatchAny))
+       COMPLETE_WITH("OWNER_TO", "RENAME TO");
 
    /* ALTER LARGE OBJECT  */
-   else if (Matches4("ALTER", "LARGE", "OBJECT", MatchAny))
-       COMPLETE_WITH_CONST("OWNER TO");
+   else if (Matches("ALTER", "LARGE", "OBJECT", MatchAny))
+       COMPLETE_WITH("OWNER TO");
 
    /* ALTER MATERIALIZED VIEW */
-   else if (Matches3("ALTER", "MATERIALIZED", "VIEW"))
+   else if (Matches("ALTER", "MATERIALIZED", "VIEW"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_matviews,
                                   "UNION SELECT 'ALL IN TABLESPACE'");
 
    /* ALTER USER,ROLE  */
-   else if (Matches3("ALTER", "USER|ROLE", MatchAny) &&
-            !TailMatches2("USER", "MAPPING"))
-   {
-       static const char *const list_ALTERUSER[] =
-       {"BYPASSRLS", "CONNECTION LIMIT", "CREATEDB", "CREATEROLE",
-           "ENCRYPTED PASSWORD", "INHERIT", "LOGIN", "NOBYPASSRLS",
-           "NOCREATEDB", "NOCREATEROLE", "NOINHERIT",
-           "NOLOGIN", "NOREPLICATION", "NOSUPERUSER", "PASSWORD", "RENAME TO",
-           "REPLICATION", "RESET", "SET", "SUPERUSER",
-       "VALID UNTIL", "WITH", NULL};
-
-       COMPLETE_WITH_LIST(list_ALTERUSER);
-   }
+   else if (Matches("ALTER", "USER|ROLE", MatchAny) &&
+            !TailMatches("USER", "MAPPING"))
+       COMPLETE_WITH("BYPASSRLS", "CONNECTION LIMIT", "CREATEDB", "CREATEROLE",
+                     "ENCRYPTED PASSWORD", "INHERIT", "LOGIN", "NOBYPASSRLS",
+                     "NOCREATEDB", "NOCREATEROLE", "NOINHERIT",
+                     "NOLOGIN", "NOREPLICATION", "NOSUPERUSER", "PASSWORD",
+                     "RENAME TO", "REPLICATION", "RESET", "SET", "SUPERUSER",
+                     "VALID UNTIL", "WITH");
 
    /* ALTER USER,ROLE  WITH */
-   else if (Matches4("ALTER", "USER|ROLE", MatchAny, "WITH"))
-   {
+   else if (Matches("ALTER", "USER|ROLE", MatchAny, "WITH"))
        /* Similar to the above, but don't complete "WITH" again. */
-       static const char *const list_ALTERUSER_WITH[] =
-       {"BYPASSRLS", "CONNECTION LIMIT", "CREATEDB", "CREATEROLE",
-           "ENCRYPTED PASSWORD", "INHERIT", "LOGIN", "NOBYPASSRLS",
-           "NOCREATEDB", "NOCREATEROLE", "NOINHERIT",
-           "NOLOGIN", "NOREPLICATION", "NOSUPERUSER", "PASSWORD", "RENAME TO",
-           "REPLICATION", "RESET", "SET", "SUPERUSER",
-       "VALID UNTIL", NULL};
-
-       COMPLETE_WITH_LIST(list_ALTERUSER_WITH);
-   }
+       COMPLETE_WITH("BYPASSRLS", "CONNECTION LIMIT", "CREATEDB", "CREATEROLE",
+                     "ENCRYPTED PASSWORD", "INHERIT", "LOGIN", "NOBYPASSRLS",
+                     "NOCREATEDB", "NOCREATEROLE", "NOINHERIT",
+                     "NOLOGIN", "NOREPLICATION", "NOSUPERUSER", "PASSWORD",
+                     "RENAME TO", "REPLICATION", "RESET", "SET", "SUPERUSER",
+                     "VALID UNTIL");
 
    /* ALTER DEFAULT PRIVILEGES */
-   else if (Matches3("ALTER", "DEFAULT", "PRIVILEGES"))
-       COMPLETE_WITH_LIST2("FOR ROLE", "IN SCHEMA");
+   else if (Matches("ALTER", "DEFAULT", "PRIVILEGES"))
+       COMPLETE_WITH("FOR ROLE", "IN SCHEMA");
    /* ALTER DEFAULT PRIVILEGES FOR */
-   else if (Matches4("ALTER", "DEFAULT", "PRIVILEGES", "FOR"))
-       COMPLETE_WITH_CONST("ROLE");
+   else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "FOR"))
+       COMPLETE_WITH("ROLE");
    /* ALTER DEFAULT PRIVILEGES IN */
-   else if (Matches4("ALTER", "DEFAULT", "PRIVILEGES", "IN"))
-       COMPLETE_WITH_CONST("SCHEMA");
+   else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "IN"))
+       COMPLETE_WITH("SCHEMA");
    /* ALTER DEFAULT PRIVILEGES FOR ROLE|USER ... */
-   else if (Matches6("ALTER", "DEFAULT", "PRIVILEGES", "FOR", "ROLE|USER",
-                     MatchAny))
-       COMPLETE_WITH_LIST3("GRANT", "REVOKE", "IN SCHEMA");
+   else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "FOR", "ROLE|USER",
+                    MatchAny))
+       COMPLETE_WITH("GRANT", "REVOKE", "IN SCHEMA");
    /* ALTER DEFAULT PRIVILEGES IN SCHEMA ... */
-   else if (Matches6("ALTER", "DEFAULT", "PRIVILEGES", "IN", "SCHEMA",
-                     MatchAny))
-       COMPLETE_WITH_LIST3("GRANT", "REVOKE", "FOR ROLE");
+   else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "IN", "SCHEMA",
+                    MatchAny))
+       COMPLETE_WITH("GRANT", "REVOKE", "FOR ROLE");
    /* ALTER DEFAULT PRIVILEGES IN SCHEMA ... FOR */
-   else if (Matches7("ALTER", "DEFAULT", "PRIVILEGES", "IN", "SCHEMA",
-                     MatchAny, "FOR"))
-       COMPLETE_WITH_CONST("ROLE");
+   else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "IN", "SCHEMA",
+                    MatchAny, "FOR"))
+       COMPLETE_WITH("ROLE");
    /* ALTER DEFAULT PRIVILEGES FOR ROLE|USER ... IN SCHEMA ... */
    /* ALTER DEFAULT PRIVILEGES IN SCHEMA ... FOR ROLE|USER ... */
-   else if (Matches9("ALTER", "DEFAULT", "PRIVILEGES", "FOR", "ROLE|USER",
-                     MatchAny, "IN", "SCHEMA", MatchAny) ||
-            Matches9("ALTER", "DEFAULT", "PRIVILEGES", "IN", "SCHEMA",
-                     MatchAny, "FOR", "ROLE|USER", MatchAny))
-       COMPLETE_WITH_LIST2("GRANT", "REVOKE");
+   else if (Matches("ALTER", "DEFAULT", "PRIVILEGES", "FOR", "ROLE|USER",
+                    MatchAny, "IN", "SCHEMA", MatchAny) ||
+            Matches("ALTER", "DEFAULT", "PRIVILEGES", "IN", "SCHEMA",
+                    MatchAny, "FOR", "ROLE|USER", MatchAny))
+       COMPLETE_WITH("GRANT", "REVOKE");
    /* ALTER DOMAIN  */
-   else if (Matches3("ALTER", "DOMAIN", MatchAny))
-       COMPLETE_WITH_LIST6("ADD", "DROP", "OWNER TO", "RENAME", "SET",
-                           "VALIDATE CONSTRAINT");
+   else if (Matches("ALTER", "DOMAIN", MatchAny))
+       COMPLETE_WITH("ADD", "DROP", "OWNER TO", "RENAME", "SET",
+                     "VALIDATE CONSTRAINT");
    /* ALTER DOMAIN  DROP */
-   else if (Matches4("ALTER", "DOMAIN", MatchAny, "DROP"))
-       COMPLETE_WITH_LIST3("CONSTRAINT", "DEFAULT", "NOT NULL");
+   else if (Matches("ALTER", "DOMAIN", MatchAny, "DROP"))
+       COMPLETE_WITH("CONSTRAINT", "DEFAULT", "NOT NULL");
    /* ALTER DOMAIN  DROP|RENAME|VALIDATE CONSTRAINT */
-   else if (Matches5("ALTER", "DOMAIN", MatchAny, "DROP|RENAME|VALIDATE", "CONSTRAINT"))
+   else if (Matches("ALTER", "DOMAIN", MatchAny, "DROP|RENAME|VALIDATE", "CONSTRAINT"))
    {
        completion_info_charp = prev3_wd;
        COMPLETE_WITH_QUERY(Query_for_constraint_of_type);
    }
    /* ALTER DOMAIN  RENAME */
-   else if (Matches4("ALTER", "DOMAIN", MatchAny, "RENAME"))
-       COMPLETE_WITH_LIST2("CONSTRAINT", "TO");
+   else if (Matches("ALTER", "DOMAIN", MatchAny, "RENAME"))
+       COMPLETE_WITH("CONSTRAINT", "TO");
    /* ALTER DOMAIN  RENAME CONSTRAINT  */
-   else if (Matches6("ALTER", "DOMAIN", MatchAny, "RENAME", "CONSTRAINT", MatchAny))
-       COMPLETE_WITH_CONST("TO");
+   else if (Matches("ALTER", "DOMAIN", MatchAny, "RENAME", "CONSTRAINT", MatchAny))
+       COMPLETE_WITH("TO");
 
    /* ALTER DOMAIN  SET */
-   else if (Matches4("ALTER", "DOMAIN", MatchAny, "SET"))
-       COMPLETE_WITH_LIST3("DEFAULT", "NOT NULL", "SCHEMA");
+   else if (Matches("ALTER", "DOMAIN", MatchAny, "SET"))
+       COMPLETE_WITH("DEFAULT", "NOT NULL", "SCHEMA");
    /* ALTER SEQUENCE  */
-   else if (Matches3("ALTER", "SEQUENCE", MatchAny))
-   {
-       static const char *const list_ALTERSEQUENCE[] =
-       {"INCREMENT", "MINVALUE", "MAXVALUE", "RESTART", "NO", "CACHE", "CYCLE",
-       "SET SCHEMA", "OWNED BY", "OWNER TO", "RENAME TO", NULL};
-
-       COMPLETE_WITH_LIST(list_ALTERSEQUENCE);
-   }
+   else if (Matches("ALTER", "SEQUENCE", MatchAny))
+       COMPLETE_WITH("INCREMENT", "MINVALUE", "MAXVALUE", "RESTART", "NO",
+                     "CACHE", "CYCLE", "SET SCHEMA", "OWNED BY", "OWNER TO",
+                     "RENAME TO");
    /* ALTER SEQUENCE  NO */
-   else if (Matches4("ALTER", "SEQUENCE", MatchAny, "NO"))
-       COMPLETE_WITH_LIST3("MINVALUE", "MAXVALUE", "CYCLE");
+   else if (Matches("ALTER", "SEQUENCE", MatchAny, "NO"))
+       COMPLETE_WITH("MINVALUE", "MAXVALUE", "CYCLE");
    /* ALTER SERVER  */
-   else if (Matches3("ALTER", "SERVER", MatchAny))
-       COMPLETE_WITH_LIST4("VERSION", "OPTIONS", "OWNER TO", "RENAME TO");
+   else if (Matches("ALTER", "SERVER", MatchAny))
+       COMPLETE_WITH("VERSION", "OPTIONS", "OWNER TO", "RENAME TO");
    /* ALTER SERVER  VERSION  */
-   else if (Matches5("ALTER", "SERVER", MatchAny, "VERSION", MatchAny))
-       COMPLETE_WITH_CONST("OPTIONS");
+   else if (Matches("ALTER", "SERVER", MatchAny, "VERSION", MatchAny))
+       COMPLETE_WITH("OPTIONS");
    /* ALTER SYSTEM SET, RESET, RESET ALL */
-   else if (Matches2("ALTER", "SYSTEM"))
-       COMPLETE_WITH_LIST2("SET", "RESET");
-   else if (Matches3("ALTER", "SYSTEM", "SET|RESET"))
+   else if (Matches("ALTER", "SYSTEM"))
+       COMPLETE_WITH("SET", "RESET");
+   else if (Matches("ALTER", "SYSTEM", "SET|RESET"))
        COMPLETE_WITH_QUERY(Query_for_list_of_alter_system_set_vars);
-   else if (Matches4("ALTER", "SYSTEM", "SET", MatchAny))
-       COMPLETE_WITH_CONST("TO");
+   else if (Matches("ALTER", "SYSTEM", "SET", MatchAny))
+       COMPLETE_WITH("TO");
    /* ALTER VIEW  */
-   else if (Matches3("ALTER", "VIEW", MatchAny))
-       COMPLETE_WITH_LIST4("ALTER COLUMN", "OWNER TO", "RENAME TO",
-                           "SET SCHEMA");
+   else if (Matches("ALTER", "VIEW", MatchAny))
+       COMPLETE_WITH("ALTER COLUMN", "OWNER TO", "RENAME TO",
+                     "SET SCHEMA");
    /* ALTER MATERIALIZED VIEW  */
-   else if (Matches4("ALTER", "MATERIALIZED", "VIEW", MatchAny))
-       COMPLETE_WITH_LIST4("ALTER COLUMN", "OWNER TO", "RENAME TO",
-                           "SET SCHEMA");
+   else if (Matches("ALTER", "MATERIALIZED", "VIEW", MatchAny))
+       COMPLETE_WITH("ALTER COLUMN", "OWNER TO", "RENAME TO",
+                     "SET SCHEMA");
 
    /* ALTER POLICY  */
-   else if (Matches2("ALTER", "POLICY"))
+   else if (Matches("ALTER", "POLICY"))
        COMPLETE_WITH_QUERY(Query_for_list_of_policies);
    /* ALTER POLICY  ON */
-   else if (Matches3("ALTER", "POLICY", MatchAny))
-       COMPLETE_WITH_CONST("ON");
+   else if (Matches("ALTER", "POLICY", MatchAny))
+       COMPLETE_WITH("ON");
    /* ALTER POLICY  ON  */
-   else if (Matches4("ALTER", "POLICY", MatchAny, "ON"))
+   else if (Matches("ALTER", "POLICY", MatchAny, "ON"))
    {
        completion_info_charp = prev2_wd;
        COMPLETE_WITH_QUERY(Query_for_list_of_tables_for_policy);
    }
    /* ALTER POLICY  ON 
 - show options */
-   else if (Matches5("ALTER", "POLICY", MatchAny, "ON", MatchAny))
-       COMPLETE_WITH_LIST4("RENAME TO", "TO", "USING (", "WITH CHECK (");
+   else if (Matches("ALTER", "POLICY", MatchAny, "ON", MatchAny))
+       COMPLETE_WITH("RENAME TO", "TO", "USING (", "WITH CHECK (");
    /* ALTER POLICY  ON 
 TO  */
-   else if (Matches6("ALTER", "POLICY", MatchAny, "ON", MatchAny, "TO"))
+   else if (Matches("ALTER", "POLICY", MatchAny, "ON", MatchAny, "TO"))
        COMPLETE_WITH_QUERY(Query_for_list_of_grant_roles);
    /* ALTER POLICY  ON 
 USING ( */
-   else if (Matches6("ALTER", "POLICY", MatchAny, "ON", MatchAny, "USING"))
-       COMPLETE_WITH_CONST("(");
+   else if (Matches("ALTER", "POLICY", MatchAny, "ON", MatchAny, "USING"))
+       COMPLETE_WITH("(");
    /* ALTER POLICY  ON 
 WITH CHECK ( */
-   else if (Matches7("ALTER", "POLICY", MatchAny, "ON", MatchAny, "WITH", "CHECK"))
-       COMPLETE_WITH_CONST("(");
+   else if (Matches("ALTER", "POLICY", MatchAny, "ON", MatchAny, "WITH", "CHECK"))
+       COMPLETE_WITH("(");
 
    /* ALTER RULE , add ON */
-   else if (Matches3("ALTER", "RULE", MatchAny))
-       COMPLETE_WITH_CONST("ON");
+   else if (Matches("ALTER", "RULE", MatchAny))
+       COMPLETE_WITH("ON");
 
    /* If we have ALTER RULE  ON, then add the correct tablename */
-   else if (Matches4("ALTER", "RULE", MatchAny, "ON"))
+   else if (Matches("ALTER", "RULE", MatchAny, "ON"))
    {
        completion_info_charp = prev2_wd;
        COMPLETE_WITH_QUERY(Query_for_list_of_tables_for_rule);
    }
 
    /* ALTER RULE  ON  */
-   else if (Matches5("ALTER", "RULE", MatchAny, "ON", MatchAny))
-       COMPLETE_WITH_CONST("RENAME TO");
+   else if (Matches("ALTER", "RULE", MatchAny, "ON", MatchAny))
+       COMPLETE_WITH("RENAME TO");
 
    /* ALTER STATISTICS  */
-   else if (Matches3("ALTER", "STATISTICS", MatchAny))
-       COMPLETE_WITH_LIST3("OWNER TO", "RENAME TO", "SET SCHEMA");
+   else if (Matches("ALTER", "STATISTICS", MatchAny))
+       COMPLETE_WITH("OWNER TO", "RENAME TO", "SET SCHEMA");
 
    /* ALTER TRIGGER , add ON */
-   else if (Matches3("ALTER", "TRIGGER", MatchAny))
-       COMPLETE_WITH_CONST("ON");
+   else if (Matches("ALTER", "TRIGGER", MatchAny))
+       COMPLETE_WITH("ON");
 
-   else if (Matches4("ALTER", "TRIGGER", MatchAny, MatchAny))
+   else if (Matches("ALTER", "TRIGGER", MatchAny, MatchAny))
    {
        completion_info_charp = prev2_wd;
        COMPLETE_WITH_QUERY(Query_for_list_of_tables_for_trigger);
@@ -1893,155 +1750,151 @@ psql_completion(const char *text, int start, int end)
    /*
     * If we have ALTER TRIGGER  ON, then add the correct tablename
     */
-   else if (Matches4("ALTER", "TRIGGER", MatchAny, "ON"))
+   else if (Matches("ALTER", "TRIGGER", MatchAny, "ON"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
 
    /* ALTER TRIGGER  ON  */
-   else if (Matches5("ALTER", "TRIGGER", MatchAny, "ON", MatchAny))
-       COMPLETE_WITH_CONST("RENAME TO");
+   else if (Matches("ALTER", "TRIGGER", MatchAny, "ON", MatchAny))
+       COMPLETE_WITH("RENAME TO");
 
    /*
     * If we detect ALTER TABLE , suggest sub commands
     */
-   else if (Matches3("ALTER", "TABLE", MatchAny))
-   {
-       static const char *const list_ALTER2[] =
-       {"ADD", "ALTER", "CLUSTER ON", "DISABLE", "DROP", "ENABLE", "INHERIT",
-           "NO INHERIT", "RENAME", "RESET", "OWNER TO", "SET",
-           "VALIDATE CONSTRAINT", "REPLICA IDENTITY", "ATTACH PARTITION",
-       "DETACH PARTITION", NULL};
-
-       COMPLETE_WITH_LIST(list_ALTER2);
-   }
+   else if (Matches("ALTER", "TABLE", MatchAny))
+       COMPLETE_WITH("ADD", "ALTER", "CLUSTER ON", "DISABLE", "DROP",
+                     "ENABLE", "INHERIT", "NO INHERIT", "RENAME", "RESET",
+                     "OWNER TO", "SET", "VALIDATE CONSTRAINT",
+                     "REPLICA IDENTITY", "ATTACH PARTITION",
+                     "DETACH PARTITION");
    /* ALTER TABLE xxx ENABLE */
-   else if (Matches4("ALTER", "TABLE", MatchAny, "ENABLE"))
-       COMPLETE_WITH_LIST5("ALWAYS", "REPLICA", "ROW LEVEL SECURITY", "RULE",
-                           "TRIGGER");
-   else if (Matches5("ALTER", "TABLE", MatchAny, "ENABLE", "REPLICA|ALWAYS"))
-       COMPLETE_WITH_LIST2("RULE", "TRIGGER");
-   else if (Matches5("ALTER", "TABLE", MatchAny, "ENABLE", "RULE"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "ENABLE"))
+       COMPLETE_WITH("ALWAYS", "REPLICA", "ROW LEVEL SECURITY", "RULE",
+                     "TRIGGER");
+   else if (Matches("ALTER", "TABLE", MatchAny, "ENABLE", "REPLICA|ALWAYS"))
+       COMPLETE_WITH("RULE", "TRIGGER");
+   else if (Matches("ALTER", "TABLE", MatchAny, "ENABLE", "RULE"))
    {
        completion_info_charp = prev3_wd;
        COMPLETE_WITH_QUERY(Query_for_rule_of_table);
    }
-   else if (Matches6("ALTER", "TABLE", MatchAny, "ENABLE", MatchAny, "RULE"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "ENABLE", MatchAny, "RULE"))
    {
        completion_info_charp = prev4_wd;
        COMPLETE_WITH_QUERY(Query_for_rule_of_table);
    }
-   else if (Matches5("ALTER", "TABLE", MatchAny, "ENABLE", "TRIGGER"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "ENABLE", "TRIGGER"))
    {
        completion_info_charp = prev3_wd;
        COMPLETE_WITH_QUERY(Query_for_trigger_of_table);
    }
-   else if (Matches6("ALTER", "TABLE", MatchAny, "ENABLE", MatchAny, "TRIGGER"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "ENABLE", MatchAny, "TRIGGER"))
    {
        completion_info_charp = prev4_wd;
        COMPLETE_WITH_QUERY(Query_for_trigger_of_table);
    }
    /* ALTER TABLE xxx INHERIT */
-   else if (Matches4("ALTER", "TABLE", MatchAny, "INHERIT"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "INHERIT"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, "");
    /* ALTER TABLE xxx NO INHERIT */
-   else if (Matches5("ALTER", "TABLE", MatchAny, "NO", "INHERIT"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "NO", "INHERIT"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, "");
    /* ALTER TABLE xxx DISABLE */
-   else if (Matches4("ALTER", "TABLE", MatchAny, "DISABLE"))
-       COMPLETE_WITH_LIST3("ROW LEVEL SECURITY", "RULE", "TRIGGER");
-   else if (Matches5("ALTER", "TABLE", MatchAny, "DISABLE", "RULE"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "DISABLE"))
+       COMPLETE_WITH("ROW LEVEL SECURITY", "RULE", "TRIGGER");
+   else if (Matches("ALTER", "TABLE", MatchAny, "DISABLE", "RULE"))
    {
        completion_info_charp = prev3_wd;
        COMPLETE_WITH_QUERY(Query_for_rule_of_table);
    }
-   else if (Matches5("ALTER", "TABLE", MatchAny, "DISABLE", "TRIGGER"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "DISABLE", "TRIGGER"))
    {
        completion_info_charp = prev3_wd;
        COMPLETE_WITH_QUERY(Query_for_trigger_of_table);
    }
 
    /* ALTER TABLE xxx ALTER */
-   else if (Matches4("ALTER", "TABLE", MatchAny, "ALTER"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "ALTER"))
        COMPLETE_WITH_ATTR(prev2_wd, " UNION SELECT 'COLUMN' UNION SELECT 'CONSTRAINT'");
 
    /* ALTER TABLE xxx RENAME */
-   else if (Matches4("ALTER", "TABLE", MatchAny, "RENAME"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "RENAME"))
        COMPLETE_WITH_ATTR(prev2_wd, " UNION SELECT 'COLUMN' UNION SELECT 'CONSTRAINT' UNION SELECT 'TO'");
-   else if (Matches5("ALTER", "TABLE", MatchAny, "ALTER|RENAME", "COLUMN"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "ALTER|RENAME", "COLUMN"))
        COMPLETE_WITH_ATTR(prev3_wd, "");
 
    /* ALTER TABLE xxx RENAME yyy */
-   else if (Matches5("ALTER", "TABLE", MatchAny, "RENAME", MatchAnyExcept("CONSTRAINT|TO")))
-       COMPLETE_WITH_CONST("TO");
+   else if (Matches("ALTER", "TABLE", MatchAny, "RENAME", MatchAnyExcept("CONSTRAINT|TO")))
+       COMPLETE_WITH("TO");
 
    /* ALTER TABLE xxx RENAME COLUMN/CONSTRAINT yyy */
-   else if (Matches6("ALTER", "TABLE", MatchAny, "RENAME", "COLUMN|CONSTRAINT", MatchAnyExcept("TO")))
-       COMPLETE_WITH_CONST("TO");
+   else if (Matches("ALTER", "TABLE", MatchAny, "RENAME", "COLUMN|CONSTRAINT", MatchAnyExcept("TO")))
+       COMPLETE_WITH("TO");
 
    /* If we have ALTER TABLE  DROP, provide COLUMN or CONSTRAINT */
-   else if (Matches4("ALTER", "TABLE", MatchAny, "DROP"))
-       COMPLETE_WITH_LIST2("COLUMN", "CONSTRAINT");
+   else if (Matches("ALTER", "TABLE", MatchAny, "DROP"))
+       COMPLETE_WITH("COLUMN", "CONSTRAINT");
    /* If we have ALTER TABLE  DROP COLUMN, provide list of columns */
-   else if (Matches5("ALTER", "TABLE", MatchAny, "DROP", "COLUMN"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "DROP", "COLUMN"))
        COMPLETE_WITH_ATTR(prev3_wd, "");
 
    /*
     * If we have ALTER TABLE  ALTER|DROP|RENAME|VALIDATE CONSTRAINT,
     * provide list of constraints
     */
-   else if (Matches5("ALTER", "TABLE", MatchAny, "ALTER|DROP|RENAME|VALIDATE", "CONSTRAINT"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "ALTER|DROP|RENAME|VALIDATE", "CONSTRAINT"))
    {
        completion_info_charp = prev3_wd;
        COMPLETE_WITH_QUERY(Query_for_constraint_of_table);
    }
    /* ALTER TABLE ALTER [COLUMN]  */
-   else if (Matches6("ALTER", "TABLE", MatchAny, "ALTER", "COLUMN", MatchAny) ||
-            Matches5("ALTER", "TABLE", MatchAny, "ALTER", MatchAny))
-       COMPLETE_WITH_LIST6("TYPE", "SET", "RESET", "RESTART", "ADD", "DROP");
+   else if (Matches("ALTER", "TABLE", MatchAny, "ALTER", "COLUMN", MatchAny) ||
+            Matches("ALTER", "TABLE", MatchAny, "ALTER", MatchAny))
+       COMPLETE_WITH("TYPE", "SET", "RESET", "RESTART", "ADD", "DROP");
    /* ALTER TABLE ALTER [COLUMN]  SET */
-   else if (Matches7("ALTER", "TABLE", MatchAny, "ALTER", "COLUMN", MatchAny, "SET") ||
-            Matches6("ALTER", "TABLE", MatchAny, "ALTER", MatchAny, "SET"))
-       COMPLETE_WITH_LIST5("(", "DEFAULT", "NOT NULL", "STATISTICS", "STORAGE");
+   else if (Matches("ALTER", "TABLE", MatchAny, "ALTER", "COLUMN", MatchAny, "SET") ||
+            Matches("ALTER", "TABLE", MatchAny, "ALTER", MatchAny, "SET"))
+       COMPLETE_WITH("(", "DEFAULT", "NOT NULL", "STATISTICS", "STORAGE");
    /* ALTER TABLE ALTER [COLUMN]  SET ( */
-   else if (Matches8("ALTER", "TABLE", MatchAny, "ALTER", "COLUMN", MatchAny, "SET", "(") ||
-            Matches7("ALTER", "TABLE", MatchAny, "ALTER", MatchAny, "SET", "("))
-       COMPLETE_WITH_LIST2("n_distinct", "n_distinct_inherited");
+   else if (Matches("ALTER", "TABLE", MatchAny, "ALTER", "COLUMN", MatchAny, "SET", "(") ||
+            Matches("ALTER", "TABLE", MatchAny, "ALTER", MatchAny, "SET", "("))
+       COMPLETE_WITH("n_distinct", "n_distinct_inherited");
    /* ALTER TABLE ALTER [COLUMN]  SET STORAGE */
-   else if (Matches8("ALTER", "TABLE", MatchAny, "ALTER", "COLUMN", MatchAny, "SET", "STORAGE") ||
-            Matches7("ALTER", "TABLE", MatchAny, "ALTER", MatchAny, "SET", "STORAGE"))
-       COMPLETE_WITH_LIST4("PLAIN", "EXTERNAL", "EXTENDED", "MAIN");
+   else if (Matches("ALTER", "TABLE", MatchAny, "ALTER", "COLUMN", MatchAny, "SET", "STORAGE") ||
+            Matches("ALTER", "TABLE", MatchAny, "ALTER", MatchAny, "SET", "STORAGE"))
+       COMPLETE_WITH("PLAIN", "EXTERNAL", "EXTENDED", "MAIN");
    /* ALTER TABLE ALTER [COLUMN]  DROP */
-   else if (Matches7("ALTER", "TABLE", MatchAny, "ALTER", "COLUMN", MatchAny, "DROP") ||
-            Matches6("ALTER", "TABLE", MatchAny, "ALTER", MatchAny, "DROP"))
-       COMPLETE_WITH_LIST3("DEFAULT", "IDENTITY", "NOT NULL");
-   else if (Matches4("ALTER", "TABLE", MatchAny, "CLUSTER"))
-       COMPLETE_WITH_CONST("ON");
-   else if (Matches5("ALTER", "TABLE", MatchAny, "CLUSTER", "ON"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "ALTER", "COLUMN", MatchAny, "DROP") ||
+            Matches("ALTER", "TABLE", MatchAny, "ALTER", MatchAny, "DROP"))
+       COMPLETE_WITH("DEFAULT", "IDENTITY", "NOT NULL");
+   else if (Matches("ALTER", "TABLE", MatchAny, "CLUSTER"))
+       COMPLETE_WITH("ON");
+   else if (Matches("ALTER", "TABLE", MatchAny, "CLUSTER", "ON"))
    {
        completion_info_charp = prev3_wd;
        COMPLETE_WITH_QUERY(Query_for_index_of_table);
    }
    /* If we have ALTER TABLE  SET, provide list of attributes and '(' */
-   else if (Matches4("ALTER", "TABLE", MatchAny, "SET"))
-       COMPLETE_WITH_LIST7("(", "LOGGED", "SCHEMA", "TABLESPACE", "UNLOGGED",
-                           "WITH", "WITHOUT");
+   else if (Matches("ALTER", "TABLE", MatchAny, "SET"))
+       COMPLETE_WITH("(", "LOGGED", "SCHEMA", "TABLESPACE", "UNLOGGED",
+                     "WITH", "WITHOUT");
 
    /*
     * If we have ALTER TABLE  SET TABLESPACE provide a list of
     * tablespaces
     */
-   else if (Matches5("ALTER", "TABLE", MatchAny, "SET", "TABLESPACE"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "SET", "TABLESPACE"))
        COMPLETE_WITH_QUERY(Query_for_list_of_tablespaces);
    /* If we have ALTER TABLE  SET WITH provide OIDS */
-   else if (Matches5("ALTER", "TABLE", MatchAny, "SET", "WITH"))
-       COMPLETE_WITH_CONST("OIDS");
+   else if (Matches("ALTER", "TABLE", MatchAny, "SET", "WITH"))
+       COMPLETE_WITH("OIDS");
    /* If we have ALTER TABLE  SET WITHOUT provide CLUSTER or OIDS */
-   else if (Matches5("ALTER", "TABLE", MatchAny, "SET", "WITHOUT"))
-       COMPLETE_WITH_LIST2("CLUSTER", "OIDS");
+   else if (Matches("ALTER", "TABLE", MatchAny, "SET", "WITHOUT"))
+       COMPLETE_WITH("CLUSTER", "OIDS");
    /* ALTER TABLE  RESET */
-   else if (Matches4("ALTER", "TABLE", MatchAny, "RESET"))
-       COMPLETE_WITH_CONST("(");
+   else if (Matches("ALTER", "TABLE", MatchAny, "RESET"))
+       COMPLETE_WITH("(");
    /* ALTER TABLE  SET|RESET ( */
-   else if (Matches5("ALTER", "TABLE", MatchAny, "SET|RESET", "("))
+   else if (Matches("ALTER", "TABLE", MatchAny, "SET|RESET", "("))
    {
        static const char *const list_TABLEOPTIONS[] =
        {
@@ -2080,101 +1933,101 @@ psql_completion(const char *text, int start, int end)
 
        COMPLETE_WITH_LIST(list_TABLEOPTIONS);
    }
-   else if (Matches7("ALTER", "TABLE", MatchAny, "REPLICA", "IDENTITY", "USING", "INDEX"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "REPLICA", "IDENTITY", "USING", "INDEX"))
    {
        completion_info_charp = prev5_wd;
        COMPLETE_WITH_QUERY(Query_for_index_of_table);
    }
-   else if (Matches6("ALTER", "TABLE", MatchAny, "REPLICA", "IDENTITY", "USING"))
-       COMPLETE_WITH_CONST("INDEX");
-   else if (Matches5("ALTER", "TABLE", MatchAny, "REPLICA", "IDENTITY"))
-       COMPLETE_WITH_LIST4("FULL", "NOTHING", "DEFAULT", "USING");
-   else if (Matches4("ALTER", "TABLE", MatchAny, "REPLICA"))
-       COMPLETE_WITH_CONST("IDENTITY");
+   else if (Matches("ALTER", "TABLE", MatchAny, "REPLICA", "IDENTITY", "USING"))
+       COMPLETE_WITH("INDEX");
+   else if (Matches("ALTER", "TABLE", MatchAny, "REPLICA", "IDENTITY"))
+       COMPLETE_WITH("FULL", "NOTHING", "DEFAULT", "USING");
+   else if (Matches("ALTER", "TABLE", MatchAny, "REPLICA"))
+       COMPLETE_WITH("IDENTITY");
 
    /*
     * If we have ALTER TABLE  ATTACH PARTITION, provide a list of
     * tables.
     */
-   else if (Matches5("ALTER", "TABLE", MatchAny, "ATTACH", "PARTITION"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "ATTACH", "PARTITION"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, "");
    /* Limited completion support for partition bound specification */
-   else if (TailMatches3("ATTACH", "PARTITION", MatchAny))
-       COMPLETE_WITH_LIST2("FOR VALUES", "DEFAULT");
-   else if (TailMatches2("FOR", "VALUES"))
-       COMPLETE_WITH_LIST3("FROM (", "IN (", "WITH (");
+   else if (TailMatches("ATTACH", "PARTITION", MatchAny))
+       COMPLETE_WITH("FOR VALUES", "DEFAULT");
+   else if (TailMatches("FOR", "VALUES"))
+       COMPLETE_WITH("FROM (", "IN (", "WITH (");
 
    /*
     * If we have ALTER TABLE  DETACH PARTITION, provide a list of
     * partitions of .
     */
-   else if (Matches5("ALTER", "TABLE", MatchAny, "DETACH", "PARTITION"))
+   else if (Matches("ALTER", "TABLE", MatchAny, "DETACH", "PARTITION"))
    {
        completion_info_charp = prev3_wd;
        COMPLETE_WITH_QUERY(Query_for_partition_of_table);
    }
 
    /* ALTER TABLESPACE  with RENAME TO, OWNER TO, SET, RESET */
-   else if (Matches3("ALTER", "TABLESPACE", MatchAny))
-       COMPLETE_WITH_LIST4("RENAME TO", "OWNER TO", "SET", "RESET");
+   else if (Matches("ALTER", "TABLESPACE", MatchAny))
+       COMPLETE_WITH("RENAME TO", "OWNER TO", "SET", "RESET");
    /* ALTER TABLESPACE  SET|RESET */
-   else if (Matches4("ALTER", "TABLESPACE", MatchAny, "SET|RESET"))
-       COMPLETE_WITH_CONST("(");
+   else if (Matches("ALTER", "TABLESPACE", MatchAny, "SET|RESET"))
+       COMPLETE_WITH("(");
    /* ALTER TABLESPACE  SET|RESET ( */
-   else if (Matches5("ALTER", "TABLESPACE", MatchAny, "SET|RESET", "("))
-       COMPLETE_WITH_LIST3("seq_page_cost", "random_page_cost",
-                           "effective_io_concurrency");
+   else if (Matches("ALTER", "TABLESPACE", MatchAny, "SET|RESET", "("))
+       COMPLETE_WITH("seq_page_cost", "random_page_cost",
+                     "effective_io_concurrency");
 
    /* ALTER TEXT SEARCH */
-   else if (Matches3("ALTER", "TEXT", "SEARCH"))
-       COMPLETE_WITH_LIST4("CONFIGURATION", "DICTIONARY", "PARSER", "TEMPLATE");
-   else if (Matches5("ALTER", "TEXT", "SEARCH", "TEMPLATE|PARSER", MatchAny))
-       COMPLETE_WITH_LIST2("RENAME TO", "SET SCHEMA");
-   else if (Matches5("ALTER", "TEXT", "SEARCH", "DICTIONARY", MatchAny))
-       COMPLETE_WITH_LIST3("OWNER TO", "RENAME TO", "SET SCHEMA");
-   else if (Matches5("ALTER", "TEXT", "SEARCH", "CONFIGURATION", MatchAny))
-       COMPLETE_WITH_LIST6("ADD MAPPING FOR", "ALTER MAPPING",
-                           "DROP MAPPING FOR",
-                           "OWNER TO", "RENAME TO", "SET SCHEMA");
+   else if (Matches("ALTER", "TEXT", "SEARCH"))
+       COMPLETE_WITH("CONFIGURATION", "DICTIONARY", "PARSER", "TEMPLATE");
+   else if (Matches("ALTER", "TEXT", "SEARCH", "TEMPLATE|PARSER", MatchAny))
+       COMPLETE_WITH("RENAME TO", "SET SCHEMA");
+   else if (Matches("ALTER", "TEXT", "SEARCH", "DICTIONARY", MatchAny))
+       COMPLETE_WITH("OWNER TO", "RENAME TO", "SET SCHEMA");
+   else if (Matches("ALTER", "TEXT", "SEARCH", "CONFIGURATION", MatchAny))
+       COMPLETE_WITH("ADD MAPPING FOR", "ALTER MAPPING",
+                     "DROP MAPPING FOR",
+                     "OWNER TO", "RENAME TO", "SET SCHEMA");
 
    /* complete ALTER TYPE  with actions */
-   else if (Matches3("ALTER", "TYPE", MatchAny))
-       COMPLETE_WITH_LIST7("ADD ATTRIBUTE", "ADD VALUE", "ALTER ATTRIBUTE",
-                           "DROP ATTRIBUTE",
-                           "OWNER TO", "RENAME", "SET SCHEMA");
+   else if (Matches("ALTER", "TYPE", MatchAny))
+       COMPLETE_WITH("ADD ATTRIBUTE", "ADD VALUE", "ALTER ATTRIBUTE",
+                     "DROP ATTRIBUTE",
+                     "OWNER TO", "RENAME", "SET SCHEMA");
    /* complete ALTER TYPE  ADD with actions */
-   else if (Matches4("ALTER", "TYPE", MatchAny, "ADD"))
-       COMPLETE_WITH_LIST2("ATTRIBUTE", "VALUE");
+   else if (Matches("ALTER", "TYPE", MatchAny, "ADD"))
+       COMPLETE_WITH("ATTRIBUTE", "VALUE");
    /* ALTER TYPE  RENAME  */
-   else if (Matches4("ALTER", "TYPE", MatchAny, "RENAME"))
-       COMPLETE_WITH_LIST3("ATTRIBUTE", "TO", "VALUE");
+   else if (Matches("ALTER", "TYPE", MatchAny, "RENAME"))
+       COMPLETE_WITH("ATTRIBUTE", "TO", "VALUE");
    /* ALTER TYPE xxx RENAME (ATTRIBUTE|VALUE) yyy */
-   else if (Matches6("ALTER", "TYPE", MatchAny, "RENAME", "ATTRIBUTE|VALUE", MatchAny))
-       COMPLETE_WITH_CONST("TO");
+   else if (Matches("ALTER", "TYPE", MatchAny, "RENAME", "ATTRIBUTE|VALUE", MatchAny))
+       COMPLETE_WITH("TO");
 
    /*
     * If we have ALTER TYPE  ALTER/DROP/RENAME ATTRIBUTE, provide list
     * of attributes
     */
-   else if (Matches5("ALTER", "TYPE", MatchAny, "ALTER|DROP|RENAME", "ATTRIBUTE"))
+   else if (Matches("ALTER", "TYPE", MatchAny, "ALTER|DROP|RENAME", "ATTRIBUTE"))
        COMPLETE_WITH_ATTR(prev3_wd, "");
    /* ALTER TYPE ALTER ATTRIBUTE  */
-   else if (Matches6("ALTER", "TYPE", MatchAny, "ALTER", "ATTRIBUTE", MatchAny))
-       COMPLETE_WITH_CONST("TYPE");
+   else if (Matches("ALTER", "TYPE", MatchAny, "ALTER", "ATTRIBUTE", MatchAny))
+       COMPLETE_WITH("TYPE");
    /* complete ALTER GROUP  */
-   else if (Matches3("ALTER", "GROUP", MatchAny))
-       COMPLETE_WITH_LIST3("ADD USER", "DROP USER", "RENAME TO");
+   else if (Matches("ALTER", "GROUP", MatchAny))
+       COMPLETE_WITH("ADD USER", "DROP USER", "RENAME TO");
    /* complete ALTER GROUP  ADD|DROP with USER */
-   else if (Matches4("ALTER", "GROUP", MatchAny, "ADD|DROP"))
-       COMPLETE_WITH_CONST("USER");
+   else if (Matches("ALTER", "GROUP", MatchAny, "ADD|DROP"))
+       COMPLETE_WITH("USER");
    /* complete ALTER GROUP  ADD|DROP USER with a user name */
-   else if (Matches5("ALTER", "GROUP", MatchAny, "ADD|DROP", "USER"))
+   else if (Matches("ALTER", "GROUP", MatchAny, "ADD|DROP", "USER"))
        COMPLETE_WITH_QUERY(Query_for_list_of_roles);
 
    /*
     * If we have ALTER TYPE  RENAME VALUE, provide list of enum values
     */
-   else if (Matches5("ALTER", "TYPE", MatchAny, "RENAME", "VALUE"))
+   else if (Matches("ALTER", "TYPE", MatchAny, "RENAME", "VALUE"))
        COMPLETE_WITH_ENUM_VALUE(prev3_wd);
 
 /*
@@ -2184,97 +2037,93 @@ psql_completion(const char *text, int start, int end)
  * Currently the only allowed option is VERBOSE, so we can be skimpier on
  * the option processing than VACUUM has to be.
  */
-   else if (Matches1("ANALYZE"))
+   else if (Matches("ANALYZE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_analyzables,
                                   " UNION SELECT 'VERBOSE'");
-   else if (Matches2("ANALYZE", "("))
-       COMPLETE_WITH_CONST("VERBOSE)");
-   else if (HeadMatches1("ANALYZE") && TailMatches1("("))
+   else if (Matches("ANALYZE", "("))
+       COMPLETE_WITH("VERBOSE)");
+   else if (HeadMatches("ANALYZE") && TailMatches("("))
        /* "ANALYZE (" should be caught above, so assume we want columns */
        COMPLETE_WITH_ATTR(prev2_wd, "");
-   else if (HeadMatches1("ANALYZE"))
+   else if (HeadMatches("ANALYZE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_analyzables, NULL);
 
 /* BEGIN */
-   else if (Matches1("BEGIN"))
-       COMPLETE_WITH_LIST6("WORK", "TRANSACTION", "ISOLATION LEVEL", "READ", "DEFERRABLE", "NOT DEFERRABLE");
+   else if (Matches("BEGIN"))
+       COMPLETE_WITH("WORK", "TRANSACTION", "ISOLATION LEVEL", "READ", "DEFERRABLE", "NOT DEFERRABLE");
 /* END, ABORT */
-   else if (Matches1("END|ABORT"))
-       COMPLETE_WITH_LIST2("WORK", "TRANSACTION");
+   else if (Matches("END|ABORT"))
+       COMPLETE_WITH("WORK", "TRANSACTION");
 /* COMMIT */
-   else if (Matches1("COMMIT"))
-       COMPLETE_WITH_LIST3("WORK", "TRANSACTION", "PREPARED");
+   else if (Matches("COMMIT"))
+       COMPLETE_WITH("WORK", "TRANSACTION", "PREPARED");
 /* RELEASE SAVEPOINT */
-   else if (Matches1("RELEASE"))
-       COMPLETE_WITH_CONST("SAVEPOINT");
+   else if (Matches("RELEASE"))
+       COMPLETE_WITH("SAVEPOINT");
 /* ROLLBACK */
-   else if (Matches1("ROLLBACK"))
-       COMPLETE_WITH_LIST4("WORK", "TRANSACTION", "TO SAVEPOINT", "PREPARED");
+   else if (Matches("ROLLBACK"))
+       COMPLETE_WITH("WORK", "TRANSACTION", "TO SAVEPOINT", "PREPARED");
 /* CALL */
-   else if (Matches1("CALL"))
+   else if (Matches("CALL"))
        COMPLETE_WITH_VERSIONED_SCHEMA_QUERY(Query_for_list_of_procedures, NULL);
-   else if (Matches2("CALL", MatchAny))
-       COMPLETE_WITH_CONST("(");
+   else if (Matches("CALL", MatchAny))
+       COMPLETE_WITH("(");
 /* CLUSTER */
-   else if (Matches1("CLUSTER"))
+   else if (Matches("CLUSTER"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_clusterables, "UNION SELECT 'VERBOSE'");
-   else if (Matches2("CLUSTER", "VERBOSE"))
+   else if (Matches("CLUSTER", "VERBOSE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_clusterables, NULL);
    /* If we have CLUSTER , then add "USING" */
-   else if (Matches2("CLUSTER", MatchAnyExcept("VERBOSE|ON")))
-       COMPLETE_WITH_CONST("USING");
+   else if (Matches("CLUSTER", MatchAnyExcept("VERBOSE|ON")))
+       COMPLETE_WITH("USING");
    /* If we have CLUSTER VERBOSE , then add "USING" */
-   else if (Matches3("CLUSTER", "VERBOSE", MatchAny))
-       COMPLETE_WITH_CONST("USING");
+   else if (Matches("CLUSTER", "VERBOSE", MatchAny))
+       COMPLETE_WITH("USING");
    /* If we have CLUSTER  USING, then add the index as well */
-   else if (Matches3("CLUSTER", MatchAny, "USING") ||
-            Matches4("CLUSTER", "VERBOSE", MatchAny, "USING"))
+   else if (Matches("CLUSTER", MatchAny, "USING") ||
+            Matches("CLUSTER", "VERBOSE", MatchAny, "USING"))
    {
        completion_info_charp = prev2_wd;
        COMPLETE_WITH_QUERY(Query_for_index_of_table);
    }
 
 /* COMMENT */
-   else if (Matches1("COMMENT"))
-       COMPLETE_WITH_CONST("ON");
-   else if (Matches2("COMMENT", "ON"))
-   {
-       static const char *const list_COMMENT[] =
-       {"ACCESS METHOD", "CAST", "COLLATION", "CONVERSION", "DATABASE",
-           "EVENT TRIGGER", "EXTENSION",
-           "FOREIGN DATA WRAPPER", "FOREIGN TABLE",
-           "SERVER", "INDEX", "LANGUAGE", "POLICY", "PUBLICATION", "RULE",
-           "SCHEMA", "SEQUENCE", "STATISTICS", "SUBSCRIPTION",
-           "TABLE", "TYPE", "VIEW", "MATERIALIZED VIEW", "COLUMN", "AGGREGATE", "FUNCTION",
-           "PROCEDURE", "ROUTINE",
-           "OPERATOR", "TRIGGER", "CONSTRAINT", "DOMAIN", "LARGE OBJECT",
-       "TABLESPACE", "TEXT SEARCH", "ROLE", NULL};
-
-       COMPLETE_WITH_LIST(list_COMMENT);
-   }
-   else if (Matches4("COMMENT", "ON", "ACCESS", "METHOD"))
+   else if (Matches("COMMENT"))
+       COMPLETE_WITH("ON");
+   else if (Matches("COMMENT", "ON"))
+       COMPLETE_WITH("ACCESS METHOD", "CAST", "COLLATION", "CONVERSION",
+                     "DATABASE", "EVENT TRIGGER", "EXTENSION",
+                     "FOREIGN DATA WRAPPER", "FOREIGN TABLE", "SERVER",
+                     "INDEX", "LANGUAGE", "POLICY", "PUBLICATION", "RULE",
+                     "SCHEMA", "SEQUENCE", "STATISTICS", "SUBSCRIPTION",
+                     "TABLE", "TYPE", "VIEW", "MATERIALIZED VIEW",
+                     "COLUMN", "AGGREGATE", "FUNCTION",
+                     "PROCEDURE", "ROUTINE",
+                     "OPERATOR", "TRIGGER", "CONSTRAINT", "DOMAIN",
+                     "LARGE OBJECT", "TABLESPACE", "TEXT SEARCH", "ROLE");
+   else if (Matches("COMMENT", "ON", "ACCESS", "METHOD"))
        COMPLETE_WITH_QUERY(Query_for_list_of_access_methods);
-   else if (Matches3("COMMENT", "ON", "FOREIGN"))
-       COMPLETE_WITH_LIST2("DATA WRAPPER", "TABLE");
-   else if (Matches4("COMMENT", "ON", "TEXT", "SEARCH"))
-       COMPLETE_WITH_LIST4("CONFIGURATION", "DICTIONARY", "PARSER", "TEMPLATE");
-   else if (Matches3("COMMENT", "ON", "CONSTRAINT"))
+   else if (Matches("COMMENT", "ON", "FOREIGN"))
+       COMPLETE_WITH("DATA WRAPPER", "TABLE");
+   else if (Matches("COMMENT", "ON", "TEXT", "SEARCH"))
+       COMPLETE_WITH("CONFIGURATION", "DICTIONARY", "PARSER", "TEMPLATE");
+   else if (Matches("COMMENT", "ON", "CONSTRAINT"))
        COMPLETE_WITH_QUERY(Query_for_all_table_constraints);
-   else if (Matches4("COMMENT", "ON", "CONSTRAINT", MatchAny))
-       COMPLETE_WITH_CONST("ON");
-   else if (Matches5("COMMENT", "ON", "CONSTRAINT", MatchAny, "ON"))
+   else if (Matches("COMMENT", "ON", "CONSTRAINT", MatchAny))
+       COMPLETE_WITH("ON");
+   else if (Matches("COMMENT", "ON", "CONSTRAINT", MatchAny, "ON"))
    {
        completion_info_charp = prev2_wd;
        COMPLETE_WITH_QUERY(Query_for_list_of_tables_for_constraint);
    }
-   else if (Matches4("COMMENT", "ON", "MATERIALIZED", "VIEW"))
+   else if (Matches("COMMENT", "ON", "MATERIALIZED", "VIEW"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_matviews, NULL);
-   else if (Matches4("COMMENT", "ON", "EVENT", "TRIGGER"))
+   else if (Matches("COMMENT", "ON", "EVENT", "TRIGGER"))
        COMPLETE_WITH_QUERY(Query_for_list_of_event_triggers);
-   else if (Matches4("COMMENT", "ON", MatchAny, MatchAnyExcept("IS")) ||
-            Matches5("COMMENT", "ON", MatchAny, MatchAny, MatchAnyExcept("IS")) ||
-            Matches6("COMMENT", "ON", MatchAny, MatchAny, MatchAny, MatchAnyExcept("IS")))
-       COMPLETE_WITH_CONST("IS");
+   else if (Matches("COMMENT", "ON", MatchAny, MatchAnyExcept("IS")) ||
+            Matches("COMMENT", "ON", MatchAny, MatchAny, MatchAnyExcept("IS")) ||
+            Matches("COMMENT", "ON", MatchAny, MatchAny, MatchAny, MatchAnyExcept("IS")))
+       COMPLETE_WITH("IS");
 
 /* COPY */
 
@@ -2282,92 +2131,92 @@ psql_completion(const char *text, int start, int end)
     * If we have COPY, offer list of tables or "(" (Also cover the analogous
     * backslash command).
     */
-   else if (Matches1("COPY|\\copy"))
+   else if (Matches("COPY|\\copy"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables,
                                   " UNION ALL SELECT '('");
    /* If we have COPY BINARY, complete with list of tables */
-   else if (Matches2("COPY", "BINARY"))
+   else if (Matches("COPY", "BINARY"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
    /* If we have COPY (, complete it with legal commands */
-   else if (Matches2("COPY|\\copy", "("))
-       COMPLETE_WITH_LIST7("SELECT", "TABLE", "VALUES", "INSERT", "UPDATE", "DELETE", "WITH");
+   else if (Matches("COPY|\\copy", "("))
+       COMPLETE_WITH("SELECT", "TABLE", "VALUES", "INSERT", "UPDATE", "DELETE", "WITH");
    /* If we have COPY [BINARY] , complete it with "TO" or "FROM" */
-   else if (Matches2("COPY|\\copy", MatchAny) ||
-            Matches3("COPY", "BINARY", MatchAny))
-       COMPLETE_WITH_LIST2("FROM", "TO");
+   else if (Matches("COPY|\\copy", MatchAny) ||
+            Matches("COPY", "BINARY", MatchAny))
+       COMPLETE_WITH("FROM", "TO");
    /* If we have COPY [BINARY]  FROM|TO, complete with filename */
-   else if (Matches3("COPY|\\copy", MatchAny, "FROM|TO") ||
-            Matches4("COPY", "BINARY", MatchAny, "FROM|TO"))
+   else if (Matches("COPY|\\copy", MatchAny, "FROM|TO") ||
+            Matches("COPY", "BINARY", MatchAny, "FROM|TO"))
    {
        completion_charp = "";
        matches = completion_matches(text, complete_from_files);
    }
 
    /* Handle COPY [BINARY]  FROM|TO filename */
-   else if (Matches4("COPY|\\copy", MatchAny, "FROM|TO", MatchAny) ||
-            Matches5("COPY", "BINARY", MatchAny, "FROM|TO", MatchAny))
-       COMPLETE_WITH_LIST6("BINARY", "OIDS", "DELIMITER", "NULL", "CSV",
-                           "ENCODING");
+   else if (Matches("COPY|\\copy", MatchAny, "FROM|TO", MatchAny) ||
+            Matches("COPY", "BINARY", MatchAny, "FROM|TO", MatchAny))
+       COMPLETE_WITH("BINARY", "OIDS", "DELIMITER", "NULL", "CSV",
+                     "ENCODING");
 
    /* Handle COPY [BINARY]  FROM|TO filename CSV */
-   else if (Matches5("COPY|\\copy", MatchAny, "FROM|TO", MatchAny, "CSV") ||
-            Matches6("COPY", "BINARY", MatchAny, "FROM|TO", MatchAny, "CSV"))
-       COMPLETE_WITH_LIST5("HEADER", "QUOTE", "ESCAPE", "FORCE QUOTE",
-                           "FORCE NOT NULL");
+   else if (Matches("COPY|\\copy", MatchAny, "FROM|TO", MatchAny, "CSV") ||
+            Matches("COPY", "BINARY", MatchAny, "FROM|TO", MatchAny, "CSV"))
+       COMPLETE_WITH("HEADER", "QUOTE", "ESCAPE", "FORCE QUOTE",
+                     "FORCE NOT NULL");
 
    /* CREATE ACCESS METHOD */
    /* Complete "CREATE ACCESS METHOD " */
-   else if (Matches4("CREATE", "ACCESS", "METHOD", MatchAny))
-       COMPLETE_WITH_CONST("TYPE");
+   else if (Matches("CREATE", "ACCESS", "METHOD", MatchAny))
+       COMPLETE_WITH("TYPE");
    /* Complete "CREATE ACCESS METHOD  TYPE" */
-   else if (Matches5("CREATE", "ACCESS", "METHOD", MatchAny, "TYPE"))
-       COMPLETE_WITH_CONST("INDEX");
+   else if (Matches("CREATE", "ACCESS", "METHOD", MatchAny, "TYPE"))
+       COMPLETE_WITH("INDEX");
    /* Complete "CREATE ACCESS METHOD  TYPE " */
-   else if (Matches6("CREATE", "ACCESS", "METHOD", MatchAny, "TYPE", MatchAny))
-       COMPLETE_WITH_CONST("HANDLER");
+   else if (Matches("CREATE", "ACCESS", "METHOD", MatchAny, "TYPE", MatchAny))
+       COMPLETE_WITH("HANDLER");
 
    /* CREATE DATABASE */
-   else if (Matches3("CREATE", "DATABASE", MatchAny))
-       COMPLETE_WITH_LIST9("OWNER", "TEMPLATE", "ENCODING", "TABLESPACE",
-                           "IS_TEMPLATE",
-                           "ALLOW_CONNECTIONS", "CONNECTION LIMIT",
-                           "LC_COLLATE", "LC_CTYPE");
+   else if (Matches("CREATE", "DATABASE", MatchAny))
+       COMPLETE_WITH("OWNER", "TEMPLATE", "ENCODING", "TABLESPACE",
+                     "IS_TEMPLATE",
+                     "ALLOW_CONNECTIONS", "CONNECTION LIMIT",
+                     "LC_COLLATE", "LC_CTYPE");
 
-   else if (Matches4("CREATE", "DATABASE", MatchAny, "TEMPLATE"))
+   else if (Matches("CREATE", "DATABASE", MatchAny, "TEMPLATE"))
        COMPLETE_WITH_QUERY(Query_for_list_of_template_databases);
 
    /* CREATE EXTENSION */
    /* Complete with available extensions rather than installed ones. */
-   else if (Matches2("CREATE", "EXTENSION"))
+   else if (Matches("CREATE", "EXTENSION"))
        COMPLETE_WITH_QUERY(Query_for_list_of_available_extensions);
    /* CREATE EXTENSION  */
-   else if (Matches3("CREATE", "EXTENSION", MatchAny))
-       COMPLETE_WITH_LIST3("WITH SCHEMA", "CASCADE", "VERSION");
+   else if (Matches("CREATE", "EXTENSION", MatchAny))
+       COMPLETE_WITH("WITH SCHEMA", "CASCADE", "VERSION");
    /* CREATE EXTENSION  VERSION */
-   else if (Matches4("CREATE", "EXTENSION", MatchAny, "VERSION"))
+   else if (Matches("CREATE", "EXTENSION", MatchAny, "VERSION"))
    {
        completion_info_charp = prev2_wd;
        COMPLETE_WITH_QUERY(Query_for_list_of_available_extension_versions);
    }
 
    /* CREATE FOREIGN */
-   else if (Matches2("CREATE", "FOREIGN"))
-       COMPLETE_WITH_LIST2("DATA WRAPPER", "TABLE");
+   else if (Matches("CREATE", "FOREIGN"))
+       COMPLETE_WITH("DATA WRAPPER", "TABLE");
 
    /* CREATE FOREIGN DATA WRAPPER */
-   else if (Matches5("CREATE", "FOREIGN", "DATA", "WRAPPER", MatchAny))
-       COMPLETE_WITH_LIST3("HANDLER", "VALIDATOR", "OPTIONS");
+   else if (Matches("CREATE", "FOREIGN", "DATA", "WRAPPER", MatchAny))
+       COMPLETE_WITH("HANDLER", "VALIDATOR", "OPTIONS");
 
    /* CREATE INDEX --- is allowed inside CREATE SCHEMA, so use TailMatches */
    /* First off we complete CREATE UNIQUE with "INDEX" */
-   else if (TailMatches2("CREATE", "UNIQUE"))
-       COMPLETE_WITH_CONST("INDEX");
+   else if (TailMatches("CREATE", "UNIQUE"))
+       COMPLETE_WITH("INDEX");
 
    /*
     * If we have CREATE|UNIQUE INDEX, then add "ON", "CONCURRENTLY", and
     * existing indexes
     */
-   else if (TailMatches2("CREATE|UNIQUE", "INDEX"))
+   else if (TailMatches("CREATE|UNIQUE", "INDEX"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexes,
                                   " UNION SELECT 'ON'"
                                   " UNION SELECT 'CONCURRENTLY'");
@@ -2376,493 +2225,485 @@ psql_completion(const char *text, int start, int end)
     * Complete ... INDEX|CONCURRENTLY [] ON with a list of relations
     * that indexes can be created on
     */
-   else if (TailMatches3("INDEX|CONCURRENTLY", MatchAny, "ON") ||
-            TailMatches2("INDEX|CONCURRENTLY", "ON"))
+   else if (TailMatches("INDEX|CONCURRENTLY", MatchAny, "ON") ||
+            TailMatches("INDEX|CONCURRENTLY", "ON"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexables, NULL);
 
    /*
     * Complete CREATE|UNIQUE INDEX CONCURRENTLY with "ON" and existing
     * indexes
     */
-   else if (TailMatches3("CREATE|UNIQUE", "INDEX", "CONCURRENTLY"))
+   else if (TailMatches("CREATE|UNIQUE", "INDEX", "CONCURRENTLY"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexes,
                                   " UNION SELECT 'ON'");
    /* Complete CREATE|UNIQUE INDEX [CONCURRENTLY]  with "ON" */
-   else if (TailMatches3("CREATE|UNIQUE", "INDEX", MatchAny) ||
-            TailMatches4("CREATE|UNIQUE", "INDEX", "CONCURRENTLY", MatchAny))
-       COMPLETE_WITH_CONST("ON");
+   else if (TailMatches("CREATE|UNIQUE", "INDEX", MatchAny) ||
+            TailMatches("CREATE|UNIQUE", "INDEX", "CONCURRENTLY", MatchAny))
+       COMPLETE_WITH("ON");
 
    /*
     * Complete INDEX  ON 
 with a list of table columns (which
     * should really be in parens)
     */
-   else if (TailMatches4("INDEX", MatchAny, "ON", MatchAny) ||
-            TailMatches3("INDEX|CONCURRENTLY", "ON", MatchAny))
-       COMPLETE_WITH_LIST2("(", "USING");
-   else if (TailMatches5("INDEX", MatchAny, "ON", MatchAny, "(") ||
-            TailMatches4("INDEX|CONCURRENTLY", "ON", MatchAny, "("))
+   else if (TailMatches("INDEX", MatchAny, "ON", MatchAny) ||
+            TailMatches("INDEX|CONCURRENTLY", "ON", MatchAny))
+       COMPLETE_WITH("(", "USING");
+   else if (TailMatches("INDEX", MatchAny, "ON", MatchAny, "(") ||
+            TailMatches("INDEX|CONCURRENTLY", "ON", MatchAny, "("))
        COMPLETE_WITH_ATTR(prev2_wd, "");
    /* same if you put in USING */
-   else if (TailMatches5("ON", MatchAny, "USING", MatchAny, "("))
+   else if (TailMatches("ON", MatchAny, "USING", MatchAny, "("))
        COMPLETE_WITH_ATTR(prev4_wd, "");
    /* Complete USING with an index method */
-   else if (TailMatches6("INDEX", MatchAny, MatchAny, "ON", MatchAny, "USING") ||
-            TailMatches5("INDEX", MatchAny, "ON", MatchAny, "USING") ||
-            TailMatches4("INDEX", "ON", MatchAny, "USING"))
+   else if (TailMatches("INDEX", MatchAny, MatchAny, "ON", MatchAny, "USING") ||
+            TailMatches("INDEX", MatchAny, "ON", MatchAny, "USING") ||
+            TailMatches("INDEX", "ON", MatchAny, "USING"))
        COMPLETE_WITH_QUERY(Query_for_list_of_access_methods);
-   else if (TailMatches4("ON", MatchAny, "USING", MatchAny) &&
-            !TailMatches6("POLICY", MatchAny, MatchAny, MatchAny, MatchAny, MatchAny) &&
-            !TailMatches4("FOR", MatchAny, MatchAny, MatchAny))
-       COMPLETE_WITH_CONST("(");
+   else if (TailMatches("ON", MatchAny, "USING", MatchAny) &&
+            !TailMatches("POLICY", MatchAny, MatchAny, MatchAny, MatchAny, MatchAny) &&
+            !TailMatches("FOR", MatchAny, MatchAny, MatchAny))
+       COMPLETE_WITH("(");
 
    /* CREATE POLICY */
    /* Complete "CREATE POLICY  ON" */
-   else if (Matches3("CREATE", "POLICY", MatchAny))
-       COMPLETE_WITH_CONST("ON");
+   else if (Matches("CREATE", "POLICY", MatchAny))
+       COMPLETE_WITH("ON");
    /* Complete "CREATE POLICY  ON 
" */
-   else if (Matches4("CREATE", "POLICY", MatchAny, "ON"))
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
    /* Complete "CREATE POLICY  ON 
 AS|FOR|TO|USING|WITH CHECK" */
-   else if (Matches5("CREATE", "POLICY", MatchAny, "ON", MatchAny))
-       COMPLETE_WITH_LIST5("AS", "FOR", "TO", "USING (", "WITH CHECK (");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny))
+       COMPLETE_WITH("AS", "FOR", "TO", "USING (", "WITH CHECK (");
    /* CREATE POLICY  ON 
 AS PERMISSIVE|RESTRICTIVE */
-   else if (Matches6("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS"))
-       COMPLETE_WITH_LIST2("PERMISSIVE", "RESTRICTIVE");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS"))
+       COMPLETE_WITH("PERMISSIVE", "RESTRICTIVE");
 
    /*
     * CREATE POLICY  ON 
 AS PERMISSIVE|RESTRICTIVE
     * FOR|TO|USING|WITH CHECK
     */
-   else if (Matches7("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny))
-       COMPLETE_WITH_LIST4("FOR", "TO", "USING", "WITH CHECK");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny))
+       COMPLETE_WITH("FOR", "TO", "USING", "WITH CHECK");
    /* CREATE POLICY  ON 
 FOR ALL|SELECT|INSERT|UPDATE|DELETE */
-   else if (Matches6("CREATE", "POLICY", MatchAny, "ON", MatchAny, "FOR"))
-       COMPLETE_WITH_LIST5("ALL", "SELECT", "INSERT", "UPDATE", "DELETE");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "FOR"))
+       COMPLETE_WITH("ALL", "SELECT", "INSERT", "UPDATE", "DELETE");
    /* Complete "CREATE POLICY  ON 
 FOR INSERT TO|WITH CHECK" */
-   else if (Matches7("CREATE", "POLICY", MatchAny, "ON", MatchAny, "FOR", "INSERT"))
-       COMPLETE_WITH_LIST2("TO", "WITH CHECK (");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "FOR", "INSERT"))
+       COMPLETE_WITH("TO", "WITH CHECK (");
    /* Complete "CREATE POLICY  ON 
 FOR SELECT|DELETE TO|USING" */
-   else if (Matches7("CREATE", "POLICY", MatchAny, "ON", MatchAny, "FOR", "SELECT|DELETE"))
-       COMPLETE_WITH_LIST2("TO", "USING (");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "FOR", "SELECT|DELETE"))
+       COMPLETE_WITH("TO", "USING (");
    /* CREATE POLICY  ON 
 FOR ALL|UPDATE TO|USING|WITH CHECK */
-   else if (Matches7("CREATE", "POLICY", MatchAny, "ON", MatchAny, "FOR", "ALL|UPDATE"))
-       COMPLETE_WITH_LIST3("TO", "USING (", "WITH CHECK (");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "FOR", "ALL|UPDATE"))
+       COMPLETE_WITH("TO", "USING (", "WITH CHECK (");
    /* Complete "CREATE POLICY  ON 
 TO " */
-   else if (Matches6("CREATE", "POLICY", MatchAny, "ON", MatchAny, "TO"))
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "TO"))
        COMPLETE_WITH_QUERY(Query_for_list_of_grant_roles);
    /* Complete "CREATE POLICY  ON 
 USING (" */
-   else if (Matches6("CREATE", "POLICY", MatchAny, "ON", MatchAny, "USING"))
-       COMPLETE_WITH_CONST("(");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "USING"))
+       COMPLETE_WITH("(");
 
    /*
     * CREATE POLICY  ON 
 AS PERMISSIVE|RESTRICTIVE FOR
     * ALL|SELECT|INSERT|UPDATE|DELETE
     */
-   else if (Matches8("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "FOR"))
-       COMPLETE_WITH_LIST5("ALL", "SELECT", "INSERT", "UPDATE", "DELETE");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "FOR"))
+       COMPLETE_WITH("ALL", "SELECT", "INSERT", "UPDATE", "DELETE");
 
    /*
     * Complete "CREATE POLICY  ON 
 AS PERMISSIVE|RESTRICTIVE FOR
     * INSERT TO|WITH CHECK"
     */
-   else if (Matches9("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "FOR", "INSERT"))
-       COMPLETE_WITH_LIST2("TO", "WITH CHECK (");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "FOR", "INSERT"))
+       COMPLETE_WITH("TO", "WITH CHECK (");
 
    /*
     * Complete "CREATE POLICY  ON 
 AS PERMISSIVE|RESTRICTIVE FOR
     * SELECT|DELETE TO|USING"
     */
-   else if (Matches9("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "FOR", "SELECT|DELETE"))
-       COMPLETE_WITH_LIST2("TO", "USING (");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "FOR", "SELECT|DELETE"))
+       COMPLETE_WITH("TO", "USING (");
 
    /*
     * CREATE POLICY  ON 
 AS PERMISSIVE|RESTRICTIVE FOR
     * ALL|UPDATE TO|USING|WITH CHECK
     */
-   else if (Matches9("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "FOR", "ALL|UPDATE"))
-       COMPLETE_WITH_LIST3("TO", "USING (", "WITH CHECK (");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "FOR", "ALL|UPDATE"))
+       COMPLETE_WITH("TO", "USING (", "WITH CHECK (");
 
    /*
     * Complete "CREATE POLICY  ON 
 AS PERMISSIVE|RESTRICTIVE TO
     * "
     */
-   else if (Matches8("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "TO"))
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "TO"))
        COMPLETE_WITH_QUERY(Query_for_list_of_grant_roles);
 
    /*
     * Complete "CREATE POLICY  ON 
 AS PERMISSIVE|RESTRICTIVE
     * USING ("
     */
-   else if (Matches8("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "USING"))
-       COMPLETE_WITH_CONST("(");
+   else if (Matches("CREATE", "POLICY", MatchAny, "ON", MatchAny, "AS", MatchAny, "USING"))
+       COMPLETE_WITH("(");
 
 
 /* CREATE PUBLICATION */
-   else if (Matches3("CREATE", "PUBLICATION", MatchAny))
-       COMPLETE_WITH_LIST3("FOR TABLE", "FOR ALL TABLES", "WITH (");
-   else if (Matches4("CREATE", "PUBLICATION", MatchAny, "FOR"))
-       COMPLETE_WITH_LIST2("TABLE", "ALL TABLES");
+   else if (Matches("CREATE", "PUBLICATION", MatchAny))
+       COMPLETE_WITH("FOR TABLE", "FOR ALL TABLES", "WITH (");
+   else if (Matches("CREATE", "PUBLICATION", MatchAny, "FOR"))
+       COMPLETE_WITH("TABLE", "ALL TABLES");
    /* Complete "CREATE PUBLICATION  FOR TABLE 
, ..." */
-   else if (HeadMatches5("CREATE", "PUBLICATION", MatchAny, "FOR", "TABLE"))
+   else if (HeadMatches("CREATE", "PUBLICATION", MatchAny, "FOR", "TABLE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
    /* Complete "CREATE PUBLICATION  [...] WITH" */
-   else if (HeadMatches2("CREATE", "PUBLICATION") && TailMatches2("WITH", "("))
-       COMPLETE_WITH_CONST("publish");
+   else if (HeadMatches("CREATE", "PUBLICATION") && TailMatches("WITH", "("))
+       COMPLETE_WITH("publish");
 
 /* CREATE RULE */
    /* Complete "CREATE RULE " with "AS ON" */
-   else if (Matches3("CREATE", "RULE", MatchAny))
-       COMPLETE_WITH_CONST("AS ON");
+   else if (Matches("CREATE", "RULE", MatchAny))
+       COMPLETE_WITH("AS ON");
    /* Complete "CREATE RULE  AS" with "ON" */
-   else if (Matches4("CREATE", "RULE", MatchAny, "AS"))
-       COMPLETE_WITH_CONST("ON");
+   else if (Matches("CREATE", "RULE", MatchAny, "AS"))
+       COMPLETE_WITH("ON");
    /* Complete "CREATE RULE  AS ON" with SELECT|UPDATE|INSERT|DELETE */
-   else if (Matches5("CREATE", "RULE", MatchAny, "AS", "ON"))
-       COMPLETE_WITH_LIST4("SELECT", "UPDATE", "INSERT", "DELETE");
+   else if (Matches("CREATE", "RULE", MatchAny, "AS", "ON"))
+       COMPLETE_WITH("SELECT", "UPDATE", "INSERT", "DELETE");
    /* Complete "AS ON SELECT|UPDATE|INSERT|DELETE" with a "TO" */
-   else if (TailMatches3("AS", "ON", "SELECT|UPDATE|INSERT|DELETE"))
-       COMPLETE_WITH_CONST("TO");
+   else if (TailMatches("AS", "ON", "SELECT|UPDATE|INSERT|DELETE"))
+       COMPLETE_WITH("TO");
    /* Complete "AS ON  TO" with a table name */
-   else if (TailMatches4("AS", "ON", "SELECT|UPDATE|INSERT|DELETE", "TO"))
+   else if (TailMatches("AS", "ON", "SELECT|UPDATE|INSERT|DELETE", "TO"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
 
 /* CREATE SEQUENCE --- is allowed inside CREATE SCHEMA, so use TailMatches */
-   else if (TailMatches3("CREATE", "SEQUENCE", MatchAny) ||
-            TailMatches4("CREATE", "TEMP|TEMPORARY", "SEQUENCE", MatchAny))
-       COMPLETE_WITH_LIST8("INCREMENT BY", "MINVALUE", "MAXVALUE", "NO", "CACHE",
-                           "CYCLE", "OWNED BY", "START WITH");
-   else if (TailMatches4("CREATE", "SEQUENCE", MatchAny, "NO") ||
-            TailMatches5("CREATE", "TEMP|TEMPORARY", "SEQUENCE", MatchAny, "NO"))
-       COMPLETE_WITH_LIST3("MINVALUE", "MAXVALUE", "CYCLE");
+   else if (TailMatches("CREATE", "SEQUENCE", MatchAny) ||
+            TailMatches("CREATE", "TEMP|TEMPORARY", "SEQUENCE", MatchAny))
+       COMPLETE_WITH("INCREMENT BY", "MINVALUE", "MAXVALUE", "NO", "CACHE",
+                     "CYCLE", "OWNED BY", "START WITH");
+   else if (TailMatches("CREATE", "SEQUENCE", MatchAny, "NO") ||
+            TailMatches("CREATE", "TEMP|TEMPORARY", "SEQUENCE", MatchAny, "NO"))
+       COMPLETE_WITH("MINVALUE", "MAXVALUE", "CYCLE");
 
 /* CREATE SERVER  */
-   else if (Matches3("CREATE", "SERVER", MatchAny))
-       COMPLETE_WITH_LIST3("TYPE", "VERSION", "FOREIGN DATA WRAPPER");
+   else if (Matches("CREATE", "SERVER", MatchAny))
+       COMPLETE_WITH("TYPE", "VERSION", "FOREIGN DATA WRAPPER");
 
 /* CREATE STATISTICS  */
-   else if (Matches3("CREATE", "STATISTICS", MatchAny))
-       COMPLETE_WITH_LIST2("(", "ON");
-   else if (Matches4("CREATE", "STATISTICS", MatchAny, "("))
-       COMPLETE_WITH_LIST2("ndistinct", "dependencies");
-   else if (HeadMatches3("CREATE", "STATISTICS", MatchAny) &&
+   else if (Matches("CREATE", "STATISTICS", MatchAny))
+       COMPLETE_WITH("(", "ON");
+   else if (Matches("CREATE", "STATISTICS", MatchAny, "("))
+       COMPLETE_WITH("ndistinct", "dependencies");
+   else if (HeadMatches("CREATE", "STATISTICS", MatchAny) &&
             previous_words[0][0] == '(' &&
             previous_words[0][strlen(previous_words[0]) - 1] == ')')
-       COMPLETE_WITH_CONST("ON");
-   else if (HeadMatches3("CREATE", "STATISTICS", MatchAny) &&
-            TailMatches1("FROM"))
+       COMPLETE_WITH("ON");
+   else if (HeadMatches("CREATE", "STATISTICS", MatchAny) &&
+            TailMatches("FROM"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
 
 /* CREATE TABLE --- is allowed inside CREATE SCHEMA, so use TailMatches */
    /* Complete "CREATE TEMP/TEMPORARY" with the possible temp objects */
-   else if (TailMatches2("CREATE", "TEMP|TEMPORARY"))
-       COMPLETE_WITH_LIST3("SEQUENCE", "TABLE", "VIEW");
+   else if (TailMatches("CREATE", "TEMP|TEMPORARY"))
+       COMPLETE_WITH("SEQUENCE", "TABLE", "VIEW");
    /* Complete "CREATE UNLOGGED" with TABLE or MATVIEW */
-   else if (TailMatches2("CREATE", "UNLOGGED"))
-       COMPLETE_WITH_LIST2("TABLE", "MATERIALIZED VIEW");
+   else if (TailMatches("CREATE", "UNLOGGED"))
+       COMPLETE_WITH("TABLE", "MATERIALIZED VIEW");
    /* Complete PARTITION BY with RANGE ( or LIST ( or ... */
-   else if (TailMatches2("PARTITION", "BY"))
-       COMPLETE_WITH_LIST3("RANGE (", "LIST (", "HASH (");
+   else if (TailMatches("PARTITION", "BY"))
+       COMPLETE_WITH("RANGE (", "LIST (", "HASH (");
    /* If we have xxx PARTITION OF, provide a list of partitioned tables */
-   else if (TailMatches2("PARTITION", "OF"))
+   else if (TailMatches("PARTITION", "OF"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_partitioned_tables, "");
    /* Limited completion support for partition bound specification */
-   else if (TailMatches3("PARTITION", "OF", MatchAny))
-       COMPLETE_WITH_LIST2("FOR VALUES", "DEFAULT");
+   else if (TailMatches("PARTITION", "OF", MatchAny))
+       COMPLETE_WITH("FOR VALUES", "DEFAULT");
 
 /* CREATE TABLESPACE */
-   else if (Matches3("CREATE", "TABLESPACE", MatchAny))
-       COMPLETE_WITH_LIST2("OWNER", "LOCATION");
+   else if (Matches("CREATE", "TABLESPACE", MatchAny))
+       COMPLETE_WITH("OWNER", "LOCATION");
    /* Complete CREATE TABLESPACE name OWNER name with "LOCATION" */
-   else if (Matches5("CREATE", "TABLESPACE", MatchAny, "OWNER", MatchAny))
-       COMPLETE_WITH_CONST("LOCATION");
+   else if (Matches("CREATE", "TABLESPACE", MatchAny, "OWNER", MatchAny))
+       COMPLETE_WITH("LOCATION");
 
 /* CREATE TEXT SEARCH */
-   else if (Matches3("CREATE", "TEXT", "SEARCH"))
-       COMPLETE_WITH_LIST4("CONFIGURATION", "DICTIONARY", "PARSER", "TEMPLATE");
-   else if (Matches5("CREATE", "TEXT", "SEARCH", "CONFIGURATION", MatchAny))
-       COMPLETE_WITH_CONST("(");
+   else if (Matches("CREATE", "TEXT", "SEARCH"))
+       COMPLETE_WITH("CONFIGURATION", "DICTIONARY", "PARSER", "TEMPLATE");
+   else if (Matches("CREATE", "TEXT", "SEARCH", "CONFIGURATION", MatchAny))
+       COMPLETE_WITH("(");
 
 /* CREATE SUBSCRIPTION */
-   else if (Matches3("CREATE", "SUBSCRIPTION", MatchAny))
-       COMPLETE_WITH_CONST("CONNECTION");
-   else if (Matches5("CREATE", "SUBSCRIPTION", MatchAny, "CONNECTION", MatchAny))
-       COMPLETE_WITH_CONST("PUBLICATION");
-   else if (Matches6("CREATE", "SUBSCRIPTION", MatchAny, "CONNECTION",
-                     MatchAny, "PUBLICATION"))
+   else if (Matches("CREATE", "SUBSCRIPTION", MatchAny))
+       COMPLETE_WITH("CONNECTION");
+   else if (Matches("CREATE", "SUBSCRIPTION", MatchAny, "CONNECTION", MatchAny))
+       COMPLETE_WITH("PUBLICATION");
+   else if (Matches("CREATE", "SUBSCRIPTION", MatchAny, "CONNECTION",
+                    MatchAny, "PUBLICATION"))
    {
        /* complete with nothing here as this refers to remote publications */
    }
-   else if (HeadMatches2("CREATE", "SUBSCRIPTION") && TailMatches2("PUBLICATION", MatchAny))
-       COMPLETE_WITH_CONST("WITH (");
+   else if (HeadMatches("CREATE", "SUBSCRIPTION") && TailMatches("PUBLICATION", MatchAny))
+       COMPLETE_WITH("WITH (");
    /* Complete "CREATE SUBSCRIPTION  ...  WITH ( " */
-   else if (HeadMatches2("CREATE", "SUBSCRIPTION") && TailMatches2("WITH", "("))
-       COMPLETE_WITH_LIST6("copy_data", "connect", "create_slot", "enabled",
-                           "slot_name", "synchronous_commit");
+   else if (HeadMatches("CREATE", "SUBSCRIPTION") && TailMatches("WITH", "("))
+       COMPLETE_WITH("copy_data", "connect", "create_slot", "enabled",
+                     "slot_name", "synchronous_commit");
 
 /* CREATE TRIGGER --- is allowed inside CREATE SCHEMA, so use TailMatches */
    /* complete CREATE TRIGGER  with BEFORE,AFTER,INSTEAD OF */
-   else if (TailMatches3("CREATE", "TRIGGER", MatchAny))
-       COMPLETE_WITH_LIST3("BEFORE", "AFTER", "INSTEAD OF");
+   else if (TailMatches("CREATE", "TRIGGER", MatchAny))
+       COMPLETE_WITH("BEFORE", "AFTER", "INSTEAD OF");
    /* complete CREATE TRIGGER  BEFORE,AFTER with an event */
-   else if (TailMatches4("CREATE", "TRIGGER", MatchAny, "BEFORE|AFTER"))
-       COMPLETE_WITH_LIST4("INSERT", "DELETE", "UPDATE", "TRUNCATE");
+   else if (TailMatches("CREATE", "TRIGGER", MatchAny, "BEFORE|AFTER"))
+       COMPLETE_WITH("INSERT", "DELETE", "UPDATE", "TRUNCATE");
    /* complete CREATE TRIGGER  INSTEAD OF with an event */
-   else if (TailMatches5("CREATE", "TRIGGER", MatchAny, "INSTEAD", "OF"))
-       COMPLETE_WITH_LIST3("INSERT", "DELETE", "UPDATE");
+   else if (TailMatches("CREATE", "TRIGGER", MatchAny, "INSTEAD", "OF"))
+       COMPLETE_WITH("INSERT", "DELETE", "UPDATE");
    /* complete CREATE TRIGGER  BEFORE,AFTER sth with OR,ON */
-   else if (TailMatches5("CREATE", "TRIGGER", MatchAny, "BEFORE|AFTER", MatchAny) ||
-            TailMatches6("CREATE", "TRIGGER", MatchAny, "INSTEAD", "OF", MatchAny))
-       COMPLETE_WITH_LIST2("ON", "OR");
+   else if (TailMatches("CREATE", "TRIGGER", MatchAny, "BEFORE|AFTER", MatchAny) ||
+            TailMatches("CREATE", "TRIGGER", MatchAny, "INSTEAD", "OF", MatchAny))
+       COMPLETE_WITH("ON", "OR");
 
    /*
     * complete CREATE TRIGGER  BEFORE,AFTER event ON with a list of
     * tables
     */
-   else if (TailMatches6("CREATE", "TRIGGER", MatchAny, "BEFORE|AFTER", MatchAny, "ON"))
+   else if (TailMatches("CREATE", "TRIGGER", MatchAny, "BEFORE|AFTER", MatchAny, "ON"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
    /* complete CREATE TRIGGER ... INSTEAD OF event ON with a list of views */
-   else if (TailMatches7("CREATE", "TRIGGER", MatchAny, "INSTEAD", "OF", MatchAny, "ON"))
+   else if (TailMatches("CREATE", "TRIGGER", MatchAny, "INSTEAD", "OF", MatchAny, "ON"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_views, NULL);
-   else if (HeadMatches2("CREATE", "TRIGGER") && TailMatches2("ON", MatchAny))
-       COMPLETE_WITH_LIST7("NOT DEFERRABLE", "DEFERRABLE", "INITIALLY",
-                           "REFERENCING", "FOR", "WHEN (", "EXECUTE PROCEDURE");
-   else if (HeadMatches2("CREATE", "TRIGGER") &&
-            (TailMatches1("DEFERRABLE") || TailMatches2("INITIALLY", "IMMEDIATE|DEFERRED")))
-       COMPLETE_WITH_LIST4("REFERENCING", "FOR", "WHEN (", "EXECUTE PROCEDURE");
-   else if (HeadMatches2("CREATE", "TRIGGER") && TailMatches1("REFERENCING"))
-       COMPLETE_WITH_LIST2("OLD TABLE", "NEW TABLE");
-   else if (HeadMatches2("CREATE", "TRIGGER") && TailMatches2("OLD|NEW", "TABLE"))
-       COMPLETE_WITH_CONST("AS");
-   else if (HeadMatches2("CREATE", "TRIGGER") &&
-            (TailMatches5("REFERENCING", "OLD", "TABLE", "AS", MatchAny) ||
-             TailMatches4("REFERENCING", "OLD", "TABLE", MatchAny)))
-       COMPLETE_WITH_LIST4("NEW TABLE", "FOR", "WHEN (", "EXECUTE PROCEDURE");
-   else if (HeadMatches2("CREATE", "TRIGGER") &&
-            (TailMatches5("REFERENCING", "NEW", "TABLE", "AS", MatchAny) ||
-             TailMatches4("REFERENCING", "NEW", "TABLE", MatchAny)))
-       COMPLETE_WITH_LIST4("OLD TABLE", "FOR", "WHEN (", "EXECUTE PROCEDURE");
-   else if (HeadMatches2("CREATE", "TRIGGER") &&
-            (TailMatches9("REFERENCING", "OLD|NEW", "TABLE", "AS", MatchAny, "OLD|NEW", "TABLE", "AS", MatchAny) ||
-             TailMatches8("REFERENCING", "OLD|NEW", "TABLE", MatchAny, "OLD|NEW", "TABLE", "AS", MatchAny) ||
-             TailMatches8("REFERENCING", "OLD|NEW", "TABLE", "AS", MatchAny, "OLD|NEW", "TABLE", MatchAny) ||
-             TailMatches7("REFERENCING", "OLD|NEW", "TABLE", MatchAny, "OLD|NEW", "TABLE", MatchAny)))
-       COMPLETE_WITH_LIST3("FOR", "WHEN (", "EXECUTE PROCEDURE");
-   else if (HeadMatches2("CREATE", "TRIGGER") && TailMatches1("FOR"))
-       COMPLETE_WITH_LIST3("EACH", "ROW", "STATEMENT");
-   else if (HeadMatches2("CREATE", "TRIGGER") && TailMatches2("FOR", "EACH"))
-       COMPLETE_WITH_LIST2("ROW", "STATEMENT");
-   else if (HeadMatches2("CREATE", "TRIGGER") &&
-            (TailMatches3("FOR", "EACH", "ROW|STATEMENT") ||
-             TailMatches2("FOR", "ROW|STATEMENT")))
-       COMPLETE_WITH_LIST2("WHEN (", "EXECUTE PROCEDURE");
+   else if (HeadMatches("CREATE", "TRIGGER") && TailMatches("ON", MatchAny))
+       COMPLETE_WITH("NOT DEFERRABLE", "DEFERRABLE", "INITIALLY",
+                     "REFERENCING", "FOR", "WHEN (", "EXECUTE PROCEDURE");
+   else if (HeadMatches("CREATE", "TRIGGER") &&
+            (TailMatches("DEFERRABLE") || TailMatches("INITIALLY", "IMMEDIATE|DEFERRED")))
+       COMPLETE_WITH("REFERENCING", "FOR", "WHEN (", "EXECUTE PROCEDURE");
+   else if (HeadMatches("CREATE", "TRIGGER") && TailMatches("REFERENCING"))
+       COMPLETE_WITH("OLD TABLE", "NEW TABLE");
+   else if (HeadMatches("CREATE", "TRIGGER") && TailMatches("OLD|NEW", "TABLE"))
+       COMPLETE_WITH("AS");
+   else if (HeadMatches("CREATE", "TRIGGER") &&
+            (TailMatches("REFERENCING", "OLD", "TABLE", "AS", MatchAny) ||
+             TailMatches("REFERENCING", "OLD", "TABLE", MatchAny)))
+       COMPLETE_WITH("NEW TABLE", "FOR", "WHEN (", "EXECUTE PROCEDURE");
+   else if (HeadMatches("CREATE", "TRIGGER") &&
+            (TailMatches("REFERENCING", "NEW", "TABLE", "AS", MatchAny) ||
+             TailMatches("REFERENCING", "NEW", "TABLE", MatchAny)))
+       COMPLETE_WITH("OLD TABLE", "FOR", "WHEN (", "EXECUTE PROCEDURE");
+   else if (HeadMatches("CREATE", "TRIGGER") &&
+            (TailMatches("REFERENCING", "OLD|NEW", "TABLE", "AS", MatchAny, "OLD|NEW", "TABLE", "AS", MatchAny) ||
+             TailMatches("REFERENCING", "OLD|NEW", "TABLE", MatchAny, "OLD|NEW", "TABLE", "AS", MatchAny) ||
+             TailMatches("REFERENCING", "OLD|NEW", "TABLE", "AS", MatchAny, "OLD|NEW", "TABLE", MatchAny) ||
+             TailMatches("REFERENCING", "OLD|NEW", "TABLE", MatchAny, "OLD|NEW", "TABLE", MatchAny)))
+       COMPLETE_WITH("FOR", "WHEN (", "EXECUTE PROCEDURE");
+   else if (HeadMatches("CREATE", "TRIGGER") && TailMatches("FOR"))
+       COMPLETE_WITH("EACH", "ROW", "STATEMENT");
+   else if (HeadMatches("CREATE", "TRIGGER") && TailMatches("FOR", "EACH"))
+       COMPLETE_WITH("ROW", "STATEMENT");
+   else if (HeadMatches("CREATE", "TRIGGER") &&
+            (TailMatches("FOR", "EACH", "ROW|STATEMENT") ||
+             TailMatches("FOR", "ROW|STATEMENT")))
+       COMPLETE_WITH("WHEN (", "EXECUTE PROCEDURE");
    /* complete CREATE TRIGGER ... EXECUTE with PROCEDURE */
-   else if (HeadMatches2("CREATE", "TRIGGER") && TailMatches1("EXECUTE"))
-       COMPLETE_WITH_CONST("PROCEDURE");
-   else if (HeadMatches2("CREATE", "TRIGGER") && TailMatches2("EXECUTE", "PROCEDURE"))
+   else if (HeadMatches("CREATE", "TRIGGER") && TailMatches("EXECUTE"))
+       COMPLETE_WITH("PROCEDURE");
+   else if (HeadMatches("CREATE", "TRIGGER") && TailMatches("EXECUTE", "PROCEDURE"))
        COMPLETE_WITH_VERSIONED_SCHEMA_QUERY(Query_for_list_of_functions, NULL);
 
 /* CREATE ROLE,USER,GROUP  */
-   else if (Matches3("CREATE", "ROLE|GROUP|USER", MatchAny) &&
-            !TailMatches2("USER", "MAPPING"))
-   {
-       static const char *const list_CREATEROLE[] =
-       {"ADMIN", "BYPASSRLS", "CONNECTION LIMIT", "CREATEDB", "CREATEROLE",
-           "ENCRYPTED PASSWORD", "IN", "INHERIT", "LOGIN", "NOBYPASSRLS",
-           "NOCREATEDB", "NOCREATEROLE", "NOINHERIT",
-           "NOLOGIN", "NOREPLICATION", "NOSUPERUSER", "PASSWORD",
-           "REPLICATION", "ROLE", "SUPERUSER", "SYSID",
-       "VALID UNTIL", "WITH", NULL};
-
-       COMPLETE_WITH_LIST(list_CREATEROLE);
-   }
+   else if (Matches("CREATE", "ROLE|GROUP|USER", MatchAny) &&
+            !TailMatches("USER", "MAPPING"))
+       COMPLETE_WITH("ADMIN", "BYPASSRLS", "CONNECTION LIMIT", "CREATEDB",
+                     "CREATEROLE", "ENCRYPTED PASSWORD", "IN", "INHERIT",
+                     "LOGIN", "NOBYPASSRLS",
+                     "NOCREATEDB", "NOCREATEROLE", "NOINHERIT",
+                     "NOLOGIN", "NOREPLICATION", "NOSUPERUSER", "PASSWORD",
+                     "REPLICATION", "ROLE", "SUPERUSER", "SYSID",
+                     "VALID UNTIL", "WITH");
 
 /* CREATE ROLE,USER,GROUP  WITH */
-   else if (Matches4("CREATE", "ROLE|GROUP|USER", MatchAny, "WITH"))
-   {
+   else if (Matches("CREATE", "ROLE|GROUP|USER", MatchAny, "WITH"))
        /* Similar to the above, but don't complete "WITH" again. */
-       static const char *const list_CREATEROLE_WITH[] =
-       {"ADMIN", "BYPASSRLS", "CONNECTION LIMIT", "CREATEDB", "CREATEROLE",
-           "ENCRYPTED PASSWORD", "IN", "INHERIT", "LOGIN", "NOBYPASSRLS",
-           "NOCREATEDB", "NOCREATEROLE", "NOINHERIT",
-           "NOLOGIN", "NOREPLICATION", "NOSUPERUSER", "PASSWORD",
-           "REPLICATION", "ROLE", "SUPERUSER", "SYSID",
-       "VALID UNTIL", NULL};
-
-       COMPLETE_WITH_LIST(list_CREATEROLE_WITH);
-   }
+       COMPLETE_WITH("ADMIN", "BYPASSRLS", "CONNECTION LIMIT", "CREATEDB",
+                     "CREATEROLE", "ENCRYPTED PASSWORD", "IN", "INHERIT",
+                     "LOGIN", "NOBYPASSRLS",
+                     "NOCREATEDB", "NOCREATEROLE", "NOINHERIT",
+                     "NOLOGIN", "NOREPLICATION", "NOSUPERUSER", "PASSWORD",
+                     "REPLICATION", "ROLE", "SUPERUSER", "SYSID",
+                     "VALID UNTIL");
 
    /* complete CREATE ROLE,USER,GROUP  IN with ROLE,GROUP */
-   else if (Matches4("CREATE", "ROLE|USER|GROUP", MatchAny, "IN"))
-       COMPLETE_WITH_LIST2("GROUP", "ROLE");
+   else if (Matches("CREATE", "ROLE|USER|GROUP", MatchAny, "IN"))
+       COMPLETE_WITH("GROUP", "ROLE");
 
 /* CREATE VIEW --- is allowed inside CREATE SCHEMA, so use TailMatches */
    /* Complete CREATE VIEW  with AS */
-   else if (TailMatches3("CREATE", "VIEW", MatchAny))
-       COMPLETE_WITH_CONST("AS");
+   else if (TailMatches("CREATE", "VIEW", MatchAny))
+       COMPLETE_WITH("AS");
    /* Complete "CREATE VIEW  AS with "SELECT" */
-   else if (TailMatches4("CREATE", "VIEW", MatchAny, "AS"))
-       COMPLETE_WITH_CONST("SELECT");
+   else if (TailMatches("CREATE", "VIEW", MatchAny, "AS"))
+       COMPLETE_WITH("SELECT");
 
 /* CREATE MATERIALIZED VIEW */
-   else if (Matches2("CREATE", "MATERIALIZED"))
-       COMPLETE_WITH_CONST("VIEW");
+   else if (Matches("CREATE", "MATERIALIZED"))
+       COMPLETE_WITH("VIEW");
    /* Complete CREATE MATERIALIZED VIEW  with AS */
-   else if (Matches4("CREATE", "MATERIALIZED", "VIEW", MatchAny))
-       COMPLETE_WITH_CONST("AS");
+   else if (Matches("CREATE", "MATERIALIZED", "VIEW", MatchAny))
+       COMPLETE_WITH("AS");
    /* Complete "CREATE MATERIALIZED VIEW  AS with "SELECT" */
-   else if (Matches5("CREATE", "MATERIALIZED", "VIEW", MatchAny, "AS"))
-       COMPLETE_WITH_CONST("SELECT");
+   else if (Matches("CREATE", "MATERIALIZED", "VIEW", MatchAny, "AS"))
+       COMPLETE_WITH("SELECT");
 
 /* CREATE EVENT TRIGGER */
-   else if (Matches2("CREATE", "EVENT"))
-       COMPLETE_WITH_CONST("TRIGGER");
+   else if (Matches("CREATE", "EVENT"))
+       COMPLETE_WITH("TRIGGER");
    /* Complete CREATE EVENT TRIGGER  with ON */
-   else if (Matches4("CREATE", "EVENT", "TRIGGER", MatchAny))
-       COMPLETE_WITH_CONST("ON");
+   else if (Matches("CREATE", "EVENT", "TRIGGER", MatchAny))
+       COMPLETE_WITH("ON");
    /* Complete CREATE EVENT TRIGGER  ON with event_type */
-   else if (Matches5("CREATE", "EVENT", "TRIGGER", MatchAny, "ON"))
-       COMPLETE_WITH_LIST3("ddl_command_start", "ddl_command_end", "sql_drop");
+   else if (Matches("CREATE", "EVENT", "TRIGGER", MatchAny, "ON"))
+       COMPLETE_WITH("ddl_command_start", "ddl_command_end", "sql_drop");
 
 /* DEALLOCATE */
-   else if (Matches1("DEALLOCATE"))
+   else if (Matches("DEALLOCATE"))
        COMPLETE_WITH_QUERY(Query_for_list_of_prepared_statements);
 
 /* DECLARE */
-   else if (Matches2("DECLARE", MatchAny))
-       COMPLETE_WITH_LIST5("BINARY", "INSENSITIVE", "SCROLL", "NO SCROLL",
-                           "CURSOR");
-   else if (HeadMatches1("DECLARE") && TailMatches1("CURSOR"))
-       COMPLETE_WITH_LIST3("WITH HOLD", "WITHOUT HOLD", "FOR");
+   else if (Matches("DECLARE", MatchAny))
+       COMPLETE_WITH("BINARY", "INSENSITIVE", "SCROLL", "NO SCROLL",
+                     "CURSOR");
+   else if (HeadMatches("DECLARE") && TailMatches("CURSOR"))
+       COMPLETE_WITH("WITH HOLD", "WITHOUT HOLD", "FOR");
 
 /* DELETE --- can be inside EXPLAIN, RULE, etc */
    /* ... despite which, only complete DELETE with FROM at start of line */
-   else if (Matches1("DELETE"))
-       COMPLETE_WITH_CONST("FROM");
+   else if (Matches("DELETE"))
+       COMPLETE_WITH("FROM");
    /* Complete DELETE FROM with a list of tables */
-   else if (TailMatches2("DELETE", "FROM"))
+   else if (TailMatches("DELETE", "FROM"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_updatables, NULL);
    /* Complete DELETE FROM 
 */
-   else if (TailMatches3("DELETE", "FROM", MatchAny))
-       COMPLETE_WITH_LIST2("USING", "WHERE");
+   else if (TailMatches("DELETE", "FROM", MatchAny))
+       COMPLETE_WITH("USING", "WHERE");
    /* XXX: implement tab completion for DELETE ... USING */
 
 /* DISCARD */
-   else if (Matches1("DISCARD"))
-       COMPLETE_WITH_LIST4("ALL", "PLANS", "SEQUENCES", "TEMP");
+   else if (Matches("DISCARD"))
+       COMPLETE_WITH("ALL", "PLANS", "SEQUENCES", "TEMP");
 
 /* DO */
-   else if (Matches1("DO"))
-       COMPLETE_WITH_CONST("LANGUAGE");
+   else if (Matches("DO"))
+       COMPLETE_WITH("LANGUAGE");
 
 /* DROP */
    /* Complete DROP object with CASCADE / RESTRICT */
-   else if (Matches3("DROP",
-                     "COLLATION|CONVERSION|DOMAIN|EXTENSION|LANGUAGE|PUBLICATION|SCHEMA|SEQUENCE|SERVER|SUBSCRIPTION|STATISTICS|TABLE|TYPE|VIEW",
-                     MatchAny) ||
-            Matches4("DROP", "ACCESS", "METHOD", MatchAny) ||
-            (Matches4("DROP", "AGGREGATE|FUNCTION|PROCEDURE|ROUTINE", MatchAny, MatchAny) &&
+   else if (Matches("DROP",
+                    "COLLATION|CONVERSION|DOMAIN|EXTENSION|LANGUAGE|PUBLICATION|SCHEMA|SEQUENCE|SERVER|SUBSCRIPTION|STATISTICS|TABLE|TYPE|VIEW",
+                    MatchAny) ||
+            Matches("DROP", "ACCESS", "METHOD", MatchAny) ||
+            (Matches("DROP", "AGGREGATE|FUNCTION|PROCEDURE|ROUTINE", MatchAny, MatchAny) &&
              ends_with(prev_wd, ')')) ||
-            Matches4("DROP", "EVENT", "TRIGGER", MatchAny) ||
-            Matches5("DROP", "FOREIGN", "DATA", "WRAPPER", MatchAny) ||
-            Matches4("DROP", "FOREIGN", "TABLE", MatchAny) ||
-            Matches5("DROP", "TEXT", "SEARCH", "CONFIGURATION|DICTIONARY|PARSER|TEMPLATE", MatchAny))
-       COMPLETE_WITH_LIST2("CASCADE", "RESTRICT");
+            Matches("DROP", "EVENT", "TRIGGER", MatchAny) ||
+            Matches("DROP", "FOREIGN", "DATA", "WRAPPER", MatchAny) ||
+            Matches("DROP", "FOREIGN", "TABLE", MatchAny) ||
+            Matches("DROP", "TEXT", "SEARCH", "CONFIGURATION|DICTIONARY|PARSER|TEMPLATE", MatchAny))
+       COMPLETE_WITH("CASCADE", "RESTRICT");
 
    /* help completing some of the variants */
-   else if (Matches3("DROP", "AGGREGATE|FUNCTION|PROCEDURE|ROUTINE", MatchAny))
-       COMPLETE_WITH_CONST("(");
-   else if (Matches4("DROP", "AGGREGATE|FUNCTION|PROCEDURE|ROUTINE", MatchAny, "("))
+   else if (Matches("DROP", "AGGREGATE|FUNCTION|PROCEDURE|ROUTINE", MatchAny))
+       COMPLETE_WITH("(");
+   else if (Matches("DROP", "AGGREGATE|FUNCTION|PROCEDURE|ROUTINE", MatchAny, "("))
        COMPLETE_WITH_FUNCTION_ARG(prev2_wd);
-   else if (Matches2("DROP", "FOREIGN"))
-       COMPLETE_WITH_LIST2("DATA WRAPPER", "TABLE");
+   else if (Matches("DROP", "FOREIGN"))
+       COMPLETE_WITH("DATA WRAPPER", "TABLE");
 
    /* DROP INDEX */
-   else if (Matches2("DROP", "INDEX"))
+   else if (Matches("DROP", "INDEX"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexes,
                                   " UNION SELECT 'CONCURRENTLY'");
-   else if (Matches3("DROP", "INDEX", "CONCURRENTLY"))
+   else if (Matches("DROP", "INDEX", "CONCURRENTLY"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexes, NULL);
-   else if (Matches3("DROP", "INDEX", MatchAny))
-       COMPLETE_WITH_LIST2("CASCADE", "RESTRICT");
-   else if (Matches4("DROP", "INDEX", "CONCURRENTLY", MatchAny))
-       COMPLETE_WITH_LIST2("CASCADE", "RESTRICT");
+   else if (Matches("DROP", "INDEX", MatchAny))
+       COMPLETE_WITH("CASCADE", "RESTRICT");
+   else if (Matches("DROP", "INDEX", "CONCURRENTLY", MatchAny))
+       COMPLETE_WITH("CASCADE", "RESTRICT");
 
    /* DROP MATERIALIZED VIEW */
-   else if (Matches2("DROP", "MATERIALIZED"))
-       COMPLETE_WITH_CONST("VIEW");
-   else if (Matches3("DROP", "MATERIALIZED", "VIEW"))
+   else if (Matches("DROP", "MATERIALIZED"))
+       COMPLETE_WITH("VIEW");
+   else if (Matches("DROP", "MATERIALIZED", "VIEW"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_matviews, NULL);
 
    /* DROP OWNED BY */
-   else if (Matches2("DROP", "OWNED"))
-       COMPLETE_WITH_CONST("BY");
-   else if (Matches3("DROP", "OWNED", "BY"))
+   else if (Matches("DROP", "OWNED"))
+       COMPLETE_WITH("BY");
+   else if (Matches("DROP", "OWNED", "BY"))
        COMPLETE_WITH_QUERY(Query_for_list_of_roles);
 
    /* DROP TEXT SEARCH */
-   else if (Matches3("DROP", "TEXT", "SEARCH"))
-       COMPLETE_WITH_LIST4("CONFIGURATION", "DICTIONARY", "PARSER", "TEMPLATE");
+   else if (Matches("DROP", "TEXT", "SEARCH"))
+       COMPLETE_WITH("CONFIGURATION", "DICTIONARY", "PARSER", "TEMPLATE");
 
    /* DROP TRIGGER */
-   else if (Matches3("DROP", "TRIGGER", MatchAny))
-       COMPLETE_WITH_CONST("ON");
-   else if (Matches4("DROP", "TRIGGER", MatchAny, "ON"))
+   else if (Matches("DROP", "TRIGGER", MatchAny))
+       COMPLETE_WITH("ON");
+   else if (Matches("DROP", "TRIGGER", MatchAny, "ON"))
    {
        completion_info_charp = prev2_wd;
        COMPLETE_WITH_QUERY(Query_for_list_of_tables_for_trigger);
    }
-   else if (Matches5("DROP", "TRIGGER", MatchAny, "ON", MatchAny))
-       COMPLETE_WITH_LIST2("CASCADE", "RESTRICT");
+   else if (Matches("DROP", "TRIGGER", MatchAny, "ON", MatchAny))
+       COMPLETE_WITH("CASCADE", "RESTRICT");
 
    /* DROP ACCESS METHOD */
-   else if (Matches2("DROP", "ACCESS"))
-       COMPLETE_WITH_CONST("METHOD");
-   else if (Matches3("DROP", "ACCESS", "METHOD"))
+   else if (Matches("DROP", "ACCESS"))
+       COMPLETE_WITH("METHOD");
+   else if (Matches("DROP", "ACCESS", "METHOD"))
        COMPLETE_WITH_QUERY(Query_for_list_of_access_methods);
 
    /* DROP EVENT TRIGGER */
-   else if (Matches2("DROP", "EVENT"))
-       COMPLETE_WITH_CONST("TRIGGER");
-   else if (Matches3("DROP", "EVENT", "TRIGGER"))
+   else if (Matches("DROP", "EVENT"))
+       COMPLETE_WITH("TRIGGER");
+   else if (Matches("DROP", "EVENT", "TRIGGER"))
        COMPLETE_WITH_QUERY(Query_for_list_of_event_triggers);
 
    /* DROP POLICY   */
-   else if (Matches2("DROP", "POLICY"))
+   else if (Matches("DROP", "POLICY"))
        COMPLETE_WITH_QUERY(Query_for_list_of_policies);
    /* DROP POLICY  ON */
-   else if (Matches3("DROP", "POLICY", MatchAny))
-       COMPLETE_WITH_CONST("ON");
+   else if (Matches("DROP", "POLICY", MatchAny))
+       COMPLETE_WITH("ON");
    /* DROP POLICY  ON 
 */
-   else if (Matches4("DROP", "POLICY", MatchAny, "ON"))
+   else if (Matches("DROP", "POLICY", MatchAny, "ON"))
    {
        completion_info_charp = prev2_wd;
        COMPLETE_WITH_QUERY(Query_for_list_of_tables_for_policy);
    }
 
    /* DROP RULE */
-   else if (Matches3("DROP", "RULE", MatchAny))
-       COMPLETE_WITH_CONST("ON");
-   else if (Matches4("DROP", "RULE", MatchAny, "ON"))
+   else if (Matches("DROP", "RULE", MatchAny))
+       COMPLETE_WITH("ON");
+   else if (Matches("DROP", "RULE", MatchAny, "ON"))
    {
        completion_info_charp = prev2_wd;
        COMPLETE_WITH_QUERY(Query_for_list_of_tables_for_rule);
    }
-   else if (Matches5("DROP", "RULE", MatchAny, "ON", MatchAny))
-       COMPLETE_WITH_LIST2("CASCADE", "RESTRICT");
+   else if (Matches("DROP", "RULE", MatchAny, "ON", MatchAny))
+       COMPLETE_WITH("CASCADE", "RESTRICT");
 
 /* EXECUTE */
-   else if (Matches1("EXECUTE"))
+   else if (Matches("EXECUTE"))
        COMPLETE_WITH_QUERY(Query_for_list_of_prepared_statements);
 
 /*
  * EXPLAIN [ ( option [, ...] ) ] statement
  * EXPLAIN [ ANALYZE ] [ VERBOSE ] statement
  */
-   else if (Matches1("EXPLAIN"))
-       COMPLETE_WITH_LIST7("SELECT", "INSERT", "DELETE", "UPDATE", "DECLARE",
-                           "ANALYZE", "VERBOSE");
-   else if (HeadMatches2("EXPLAIN", "(*") &&
-            !HeadMatches2("EXPLAIN", "(*)"))
+   else if (Matches("EXPLAIN"))
+       COMPLETE_WITH("SELECT", "INSERT", "DELETE", "UPDATE", "DECLARE",
+                     "ANALYZE", "VERBOSE");
+   else if (HeadMatches("EXPLAIN", "(*") &&
+            !HeadMatches("EXPLAIN", "(*)"))
    {
        /*
         * This fires if we're in an unfinished parenthesized option list.
@@ -2870,54 +2711,54 @@ psql_completion(const char *text, int start, int end)
         * one word, so the above test is correct.
         */
        if (ends_with(prev_wd, '(') || ends_with(prev_wd, ','))
-           COMPLETE_WITH_LIST7("ANALYZE", "VERBOSE", "COSTS", "BUFFERS",
-                               "TIMING", "SUMMARY", "FORMAT");
-       else if (TailMatches1("ANALYZE|VERBOSE|COSTS|BUFFERS|TIMING|SUMMARY"))
-           COMPLETE_WITH_LIST2("ON", "OFF");
-       else if (TailMatches1("FORMAT"))
-           COMPLETE_WITH_LIST4("TEXT", "XML", "JSON", "YAML");
+           COMPLETE_WITH("ANALYZE", "VERBOSE", "COSTS", "BUFFERS",
+                         "TIMING", "SUMMARY", "FORMAT");
+       else if (TailMatches("ANALYZE|VERBOSE|COSTS|BUFFERS|TIMING|SUMMARY"))
+           COMPLETE_WITH("ON", "OFF");
+       else if (TailMatches("FORMAT"))
+           COMPLETE_WITH("TEXT", "XML", "JSON", "YAML");
    }
-   else if (Matches2("EXPLAIN", "ANALYZE"))
-       COMPLETE_WITH_LIST6("SELECT", "INSERT", "DELETE", "UPDATE", "DECLARE",
-                           "VERBOSE");
-   else if (Matches2("EXPLAIN", "(*)") ||
-            Matches2("EXPLAIN", "VERBOSE") ||
-            Matches3("EXPLAIN", "ANALYZE", "VERBOSE"))
-       COMPLETE_WITH_LIST5("SELECT", "INSERT", "DELETE", "UPDATE", "DECLARE");
+   else if (Matches("EXPLAIN", "ANALYZE"))
+       COMPLETE_WITH("SELECT", "INSERT", "DELETE", "UPDATE", "DECLARE",
+                     "VERBOSE");
+   else if (Matches("EXPLAIN", "(*)") ||
+            Matches("EXPLAIN", "VERBOSE") ||
+            Matches("EXPLAIN", "ANALYZE", "VERBOSE"))
+       COMPLETE_WITH("SELECT", "INSERT", "DELETE", "UPDATE", "DECLARE");
 
 /* FETCH && MOVE */
    /* Complete FETCH with one of FORWARD, BACKWARD, RELATIVE */
-   else if (Matches1("FETCH|MOVE"))
-       COMPLETE_WITH_LIST4("ABSOLUTE", "BACKWARD", "FORWARD", "RELATIVE");
+   else if (Matches("FETCH|MOVE"))
+       COMPLETE_WITH("ABSOLUTE", "BACKWARD", "FORWARD", "RELATIVE");
    /* Complete FETCH  with one of ALL, NEXT, PRIOR */
-   else if (Matches2("FETCH|MOVE", MatchAny))
-       COMPLETE_WITH_LIST3("ALL", "NEXT", "PRIOR");
+   else if (Matches("FETCH|MOVE", MatchAny))
+       COMPLETE_WITH("ALL", "NEXT", "PRIOR");
 
    /*
     * Complete FETCH   with "FROM" or "IN". These are equivalent,
     * but we may as well tab-complete both: perhaps some users prefer one
     * variant or the other.
     */
-   else if (Matches3("FETCH|MOVE", MatchAny, MatchAny))
-       COMPLETE_WITH_LIST2("FROM", "IN");
+   else if (Matches("FETCH|MOVE", MatchAny, MatchAny))
+       COMPLETE_WITH("FROM", "IN");
 
 /* FOREIGN DATA WRAPPER */
    /* applies in ALTER/DROP FDW and in CREATE SERVER */
-   else if (TailMatches3("FOREIGN", "DATA", "WRAPPER") &&
-            !TailMatches4("CREATE", MatchAny, MatchAny, MatchAny))
+   else if (TailMatches("FOREIGN", "DATA", "WRAPPER") &&
+            !TailMatches("CREATE", MatchAny, MatchAny, MatchAny))
        COMPLETE_WITH_QUERY(Query_for_list_of_fdws);
    /* applies in CREATE SERVER */
-   else if (TailMatches4("FOREIGN", "DATA", "WRAPPER", MatchAny) &&
-            HeadMatches2("CREATE", "SERVER"))
-       COMPLETE_WITH_CONST("OPTIONS");
+   else if (TailMatches("FOREIGN", "DATA", "WRAPPER", MatchAny) &&
+            HeadMatches("CREATE", "SERVER"))
+       COMPLETE_WITH("OPTIONS");
 
 /* FOREIGN TABLE */
-   else if (TailMatches2("FOREIGN", "TABLE") &&
-            !TailMatches3("CREATE", MatchAny, MatchAny))
+   else if (TailMatches("FOREIGN", "TABLE") &&
+            !TailMatches("CREATE", MatchAny, MatchAny))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_foreign_tables, NULL);
 
 /* FOREIGN SERVER */
-   else if (TailMatches2("FOREIGN", "SERVER"))
+   else if (TailMatches("FOREIGN", "SERVER"))
        COMPLETE_WITH_QUERY(Query_for_list_of_servers);
 
 /*
@@ -2925,16 +2766,16 @@ psql_completion(const char *text, int start, int end)
  * ALTER DEFAULT PRIVILEGES, so use TailMatches
  */
    /* Complete GRANT/REVOKE with a list of roles and privileges */
-   else if (TailMatches1("GRANT|REVOKE"))
+   else if (TailMatches("GRANT|REVOKE"))
    {
        /*
         * With ALTER DEFAULT PRIVILEGES, restrict completion to grantable
         * privileges (can't grant roles)
         */
-       if (HeadMatches3("ALTER", "DEFAULT", "PRIVILEGES"))
-           COMPLETE_WITH_LIST10("SELECT", "INSERT", "UPDATE",
-                                "DELETE", "TRUNCATE", "REFERENCES", "TRIGGER",
-                                "EXECUTE", "USAGE", "ALL");
+       if (HeadMatches("ALTER", "DEFAULT", "PRIVILEGES"))
+           COMPLETE_WITH("SELECT", "INSERT", "UPDATE",
+                         "DELETE", "TRUNCATE", "REFERENCES", "TRIGGER",
+                         "EXECUTE", "USAGE", "ALL");
        else
            COMPLETE_WITH_QUERY(Query_for_list_of_roles
                                " UNION SELECT 'SELECT'"
@@ -2956,14 +2797,14 @@ psql_completion(const char *text, int start, int end)
     * Complete GRANT/REVOKE  with "ON", GRANT/REVOKE  with
     * TO/FROM
     */
-   else if (TailMatches2("GRANT|REVOKE", MatchAny))
+   else if (TailMatches("GRANT|REVOKE", MatchAny))
    {
-       if (TailMatches1("SELECT|INSERT|UPDATE|DELETE|TRUNCATE|REFERENCES|TRIGGER|CREATE|CONNECT|TEMPORARY|TEMP|EXECUTE|USAGE|ALL"))
-           COMPLETE_WITH_CONST("ON");
-       else if (TailMatches2("GRANT", MatchAny))
-           COMPLETE_WITH_CONST("TO");
+       if (TailMatches("SELECT|INSERT|UPDATE|DELETE|TRUNCATE|REFERENCES|TRIGGER|CREATE|CONNECT|TEMPORARY|TEMP|EXECUTE|USAGE|ALL"))
+           COMPLETE_WITH("ON");
+       else if (TailMatches("GRANT", MatchAny))
+           COMPLETE_WITH("TO");
        else
-           COMPLETE_WITH_CONST("FROM");
+           COMPLETE_WITH("FROM");
    }
 
    /*
@@ -2976,14 +2817,14 @@ psql_completion(const char *text, int start, int end)
     * here will only work if the privilege list contains exactly one
     * privilege.
     */
-   else if (TailMatches3("GRANT|REVOKE", MatchAny, "ON"))
+   else if (TailMatches("GRANT|REVOKE", MatchAny, "ON"))
    {
        /*
         * With ALTER DEFAULT PRIVILEGES, restrict completion to the kinds of
         * objects supported.
         */
-       if (HeadMatches3("ALTER", "DEFAULT", "PRIVILEGES"))
-           COMPLETE_WITH_LIST7("TABLES", "SEQUENCES", "FUNCTIONS", "PROCEDURES", "ROUTINES", "TYPES", "SCHEMAS");
+       if (HeadMatches("ALTER", "DEFAULT", "PRIVILEGES"))
+           COMPLETE_WITH("TABLES", "SEQUENCES", "FUNCTIONS", "PROCEDURES", "ROUTINES", "TYPES", "SCHEMAS");
        else
            COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_grantables,
                                       " UNION SELECT 'ALL FUNCTIONS IN SCHEMA'"
@@ -3006,14 +2847,14 @@ psql_completion(const char *text, int start, int end)
                                       " UNION SELECT 'TABLESPACE'"
                                       " UNION SELECT 'TYPE'");
    }
-   else if (TailMatches4("GRANT|REVOKE", MatchAny, "ON", "ALL"))
-       COMPLETE_WITH_LIST5("FUNCTIONS IN SCHEMA",
-                           "PROCEDURES IN SCHEMA",
-                           "ROUTINES IN SCHEMA",
-                           "SEQUENCES IN SCHEMA",
-                           "TABLES IN SCHEMA");
-   else if (TailMatches4("GRANT|REVOKE", MatchAny, "ON", "FOREIGN"))
-       COMPLETE_WITH_LIST2("DATA WRAPPER", "SERVER");
+   else if (TailMatches("GRANT|REVOKE", MatchAny, "ON", "ALL"))
+       COMPLETE_WITH("FUNCTIONS IN SCHEMA",
+                     "PROCEDURES IN SCHEMA",
+                     "ROUTINES IN SCHEMA",
+                     "SEQUENCES IN SCHEMA",
+                     "TABLES IN SCHEMA");
+   else if (TailMatches("GRANT|REVOKE", MatchAny, "ON", "FOREIGN"))
+       COMPLETE_WITH("DATA WRAPPER", "SERVER");
 
    /*
     * Complete "GRANT/REVOKE * ON DATABASE/DOMAIN/..." with a list of
@@ -3021,183 +2862,183 @@ psql_completion(const char *text, int start, int end)
     *
     * Complete "GRANT/REVOKE * ON *" with "TO/FROM".
     */
-   else if (TailMatches4("GRANT|REVOKE", MatchAny, "ON", MatchAny))
+   else if (TailMatches("GRANT|REVOKE", MatchAny, "ON", MatchAny))
    {
-       if (TailMatches1("DATABASE"))
+       if (TailMatches("DATABASE"))
            COMPLETE_WITH_QUERY(Query_for_list_of_databases);
-       else if (TailMatches1("DOMAIN"))
+       else if (TailMatches("DOMAIN"))
            COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_domains, NULL);
-       else if (TailMatches1("FUNCTION"))
+       else if (TailMatches("FUNCTION"))
            COMPLETE_WITH_VERSIONED_SCHEMA_QUERY(Query_for_list_of_functions, NULL);
-       else if (TailMatches1("LANGUAGE"))
+       else if (TailMatches("LANGUAGE"))
            COMPLETE_WITH_QUERY(Query_for_list_of_languages);
-       else if (TailMatches1("PROCEDURE"))
+       else if (TailMatches("PROCEDURE"))
            COMPLETE_WITH_VERSIONED_SCHEMA_QUERY(Query_for_list_of_procedures, NULL);
-       else if (TailMatches1("ROUTINE"))
+       else if (TailMatches("ROUTINE"))
            COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_routines, NULL);
-       else if (TailMatches1("SCHEMA"))
+       else if (TailMatches("SCHEMA"))
            COMPLETE_WITH_QUERY(Query_for_list_of_schemas);
-       else if (TailMatches1("SEQUENCE"))
+       else if (TailMatches("SEQUENCE"))
            COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_sequences, NULL);
-       else if (TailMatches1("TABLE"))
+       else if (TailMatches("TABLE"))
            COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_grantables, NULL);
-       else if (TailMatches1("TABLESPACE"))
+       else if (TailMatches("TABLESPACE"))
            COMPLETE_WITH_QUERY(Query_for_list_of_tablespaces);
-       else if (TailMatches1("TYPE"))
+       else if (TailMatches("TYPE"))
            COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_datatypes, NULL);
-       else if (TailMatches4("GRANT", MatchAny, MatchAny, MatchAny))
-           COMPLETE_WITH_CONST("TO");
+       else if (TailMatches("GRANT", MatchAny, MatchAny, MatchAny))
+           COMPLETE_WITH("TO");
        else
-           COMPLETE_WITH_CONST("FROM");
+           COMPLETE_WITH("FROM");
    }
 
    /*
     * Complete "GRANT/REVOKE ... TO/FROM" with username, PUBLIC,
     * CURRENT_USER, or SESSION_USER.
     */
-   else if ((HeadMatches1("GRANT") && TailMatches1("TO")) ||
-            (HeadMatches1("REVOKE") && TailMatches1("FROM")))
+   else if ((HeadMatches("GRANT") && TailMatches("TO")) ||
+            (HeadMatches("REVOKE") && TailMatches("FROM")))
        COMPLETE_WITH_QUERY(Query_for_list_of_grant_roles);
    /* Complete "ALTER DEFAULT PRIVILEGES ... GRANT/REVOKE ... TO/FROM */
-   else if (HeadMatches3("ALTER", "DEFAULT", "PRIVILEGES") && TailMatches1("TO|FROM"))
+   else if (HeadMatches("ALTER", "DEFAULT", "PRIVILEGES") && TailMatches("TO|FROM"))
        COMPLETE_WITH_QUERY(Query_for_list_of_grant_roles);
    /* Complete "GRANT/REVOKE ... ON * *" with TO/FROM */
-   else if (HeadMatches1("GRANT") && TailMatches3("ON", MatchAny, MatchAny))
-       COMPLETE_WITH_CONST("TO");
-   else if (HeadMatches1("REVOKE") && TailMatches3("ON", MatchAny, MatchAny))
-       COMPLETE_WITH_CONST("FROM");
+   else if (HeadMatches("GRANT") && TailMatches("ON", MatchAny, MatchAny))
+       COMPLETE_WITH("TO");
+   else if (HeadMatches("REVOKE") && TailMatches("ON", MatchAny, MatchAny))
+       COMPLETE_WITH("FROM");
 
    /* Complete "GRANT/REVOKE * ON ALL * IN SCHEMA *" with TO/FROM */
-   else if (TailMatches8("GRANT|REVOKE", MatchAny, "ON", "ALL", MatchAny, "IN", "SCHEMA", MatchAny))
+   else if (TailMatches("GRANT|REVOKE", MatchAny, "ON", "ALL", MatchAny, "IN", "SCHEMA", MatchAny))
    {
-       if (TailMatches8("GRANT", MatchAny, MatchAny, MatchAny, MatchAny, MatchAny, MatchAny, MatchAny))
-           COMPLETE_WITH_CONST("TO");
+       if (TailMatches("GRANT", MatchAny, MatchAny, MatchAny, MatchAny, MatchAny, MatchAny, MatchAny))
+           COMPLETE_WITH("TO");
        else
-           COMPLETE_WITH_CONST("FROM");
+           COMPLETE_WITH("FROM");
    }
 
    /* Complete "GRANT/REVOKE * ON FOREIGN DATA WRAPPER *" with TO/FROM */
-   else if (TailMatches7("GRANT|REVOKE", MatchAny, "ON", "FOREIGN", "DATA", "WRAPPER", MatchAny))
+   else if (TailMatches("GRANT|REVOKE", MatchAny, "ON", "FOREIGN", "DATA", "WRAPPER", MatchAny))
    {
-       if (TailMatches7("GRANT", MatchAny, MatchAny, MatchAny, MatchAny, MatchAny, MatchAny))
-           COMPLETE_WITH_CONST("TO");
+       if (TailMatches("GRANT", MatchAny, MatchAny, MatchAny, MatchAny, MatchAny, MatchAny))
+           COMPLETE_WITH("TO");
        else
-           COMPLETE_WITH_CONST("FROM");
+           COMPLETE_WITH("FROM");
    }
 
    /* Complete "GRANT/REVOKE * ON FOREIGN SERVER *" with TO/FROM */
-   else if (TailMatches6("GRANT|REVOKE", MatchAny, "ON", "FOREIGN", "SERVER", MatchAny))
+   else if (TailMatches("GRANT|REVOKE", MatchAny, "ON", "FOREIGN", "SERVER", MatchAny))
    {
-       if (TailMatches6("GRANT", MatchAny, MatchAny, MatchAny, MatchAny, MatchAny))
-           COMPLETE_WITH_CONST("TO");
+       if (TailMatches("GRANT", MatchAny, MatchAny, MatchAny, MatchAny, MatchAny))
+           COMPLETE_WITH("TO");
        else
-           COMPLETE_WITH_CONST("FROM");
+           COMPLETE_WITH("FROM");
    }
 
 /* GROUP BY */
-   else if (TailMatches3("FROM", MatchAny, "GROUP"))
-       COMPLETE_WITH_CONST("BY");
+   else if (TailMatches("FROM", MatchAny, "GROUP"))
+       COMPLETE_WITH("BY");
 
 /* IMPORT FOREIGN SCHEMA */
-   else if (Matches1("IMPORT"))
-       COMPLETE_WITH_CONST("FOREIGN SCHEMA");
-   else if (Matches2("IMPORT", "FOREIGN"))
-       COMPLETE_WITH_CONST("SCHEMA");
+   else if (Matches("IMPORT"))
+       COMPLETE_WITH("FOREIGN SCHEMA");
+   else if (Matches("IMPORT", "FOREIGN"))
+       COMPLETE_WITH("SCHEMA");
 
 /* INSERT --- can be inside EXPLAIN, RULE, etc */
    /* Complete INSERT with "INTO" */
-   else if (TailMatches1("INSERT"))
-       COMPLETE_WITH_CONST("INTO");
+   else if (TailMatches("INSERT"))
+       COMPLETE_WITH("INTO");
    /* Complete INSERT INTO with table names */
-   else if (TailMatches2("INSERT", "INTO"))
+   else if (TailMatches("INSERT", "INTO"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_updatables, NULL);
    /* Complete "INSERT INTO 
 (" with attribute names */
-   else if (TailMatches4("INSERT", "INTO", MatchAny, "("))
+   else if (TailMatches("INSERT", "INTO", MatchAny, "("))
        COMPLETE_WITH_ATTR(prev2_wd, "");
 
    /*
     * Complete INSERT INTO 
 with "(" or "VALUES" or "SELECT" or
     * "TABLE" or "DEFAULT VALUES" or "OVERRIDING"
     */
-   else if (TailMatches3("INSERT", "INTO", MatchAny))
-       COMPLETE_WITH_LIST6("(", "DEFAULT VALUES", "SELECT", "TABLE", "VALUES", "OVERRIDING");
+   else if (TailMatches("INSERT", "INTO", MatchAny))
+       COMPLETE_WITH("(", "DEFAULT VALUES", "SELECT", "TABLE", "VALUES", "OVERRIDING");
 
    /*
     * Complete INSERT INTO 
 (attribs) with "VALUES" or "SELECT" or
     * "TABLE" or "OVERRIDING"
     */
-   else if (TailMatches4("INSERT", "INTO", MatchAny, MatchAny) &&
+   else if (TailMatches("INSERT", "INTO", MatchAny, MatchAny) &&
             ends_with(prev_wd, ')'))
-       COMPLETE_WITH_LIST4("SELECT", "TABLE", "VALUES", "OVERRIDING");
+       COMPLETE_WITH("SELECT", "TABLE", "VALUES", "OVERRIDING");
 
    /* Complete OVERRIDING */
-   else if (TailMatches1("OVERRIDING"))
-       COMPLETE_WITH_LIST2("SYSTEM VALUE", "USER VALUE");
+   else if (TailMatches("OVERRIDING"))
+       COMPLETE_WITH("SYSTEM VALUE", "USER VALUE");
 
    /* Complete after OVERRIDING clause */
-   else if (TailMatches3("OVERRIDING", MatchAny, "VALUE"))
-       COMPLETE_WITH_LIST3("SELECT", "TABLE", "VALUES");
+   else if (TailMatches("OVERRIDING", MatchAny, "VALUE"))
+       COMPLETE_WITH("SELECT", "TABLE", "VALUES");
 
    /* Insert an open parenthesis after "VALUES" */
-   else if (TailMatches1("VALUES") && !TailMatches2("DEFAULT", "VALUES"))
-       COMPLETE_WITH_CONST("(");
+   else if (TailMatches("VALUES") && !TailMatches("DEFAULT", "VALUES"))
+       COMPLETE_WITH("(");
 
 /* LOCK */
    /* Complete LOCK [TABLE] with a list of tables */
-   else if (Matches1("LOCK"))
+   else if (Matches("LOCK"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables,
                                   " UNION SELECT 'TABLE'");
-   else if (Matches2("LOCK", "TABLE"))
+   else if (Matches("LOCK", "TABLE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, "");
 
    /* For the following, handle the case of a single table only for now */
 
    /* Complete LOCK [TABLE] 
 with "IN" */
-   else if (Matches2("LOCK", MatchAnyExcept("TABLE")) ||
-            Matches3("LOCK", "TABLE", MatchAny))
-       COMPLETE_WITH_CONST("IN");
+   else if (Matches("LOCK", MatchAnyExcept("TABLE")) ||
+            Matches("LOCK", "TABLE", MatchAny))
+       COMPLETE_WITH("IN");
 
    /* Complete LOCK [TABLE] 
 IN with a lock mode */
-   else if (Matches3("LOCK", MatchAny, "IN") ||
-            Matches4("LOCK", "TABLE", MatchAny, "IN"))
-       COMPLETE_WITH_LIST8("ACCESS SHARE MODE",
-                           "ROW SHARE MODE", "ROW EXCLUSIVE MODE",
-                           "SHARE UPDATE EXCLUSIVE MODE", "SHARE MODE",
-                           "SHARE ROW EXCLUSIVE MODE",
-                           "EXCLUSIVE MODE", "ACCESS EXCLUSIVE MODE");
+   else if (Matches("LOCK", MatchAny, "IN") ||
+            Matches("LOCK", "TABLE", MatchAny, "IN"))
+       COMPLETE_WITH("ACCESS SHARE MODE",
+                     "ROW SHARE MODE", "ROW EXCLUSIVE MODE",
+                     "SHARE UPDATE EXCLUSIVE MODE", "SHARE MODE",
+                     "SHARE ROW EXCLUSIVE MODE",
+                     "EXCLUSIVE MODE", "ACCESS EXCLUSIVE MODE");
 
    /* Complete LOCK [TABLE] 
 IN ACCESS|ROW with rest of lock mode */
-   else if (Matches4("LOCK", MatchAny, "IN", "ACCESS|ROW") ||
-            Matches5("LOCK", "TABLE", MatchAny, "IN", "ACCESS|ROW"))
-       COMPLETE_WITH_LIST2("EXCLUSIVE MODE", "SHARE MODE");
+   else if (Matches("LOCK", MatchAny, "IN", "ACCESS|ROW") ||
+            Matches("LOCK", "TABLE", MatchAny, "IN", "ACCESS|ROW"))
+       COMPLETE_WITH("EXCLUSIVE MODE", "SHARE MODE");
 
    /* Complete LOCK [TABLE] 
 IN SHARE with rest of lock mode */
-   else if (Matches4("LOCK", MatchAny, "IN", "SHARE") ||
-            Matches5("LOCK", "TABLE", MatchAny, "IN", "SHARE"))
-       COMPLETE_WITH_LIST3("MODE", "ROW EXCLUSIVE MODE",
-                           "UPDATE EXCLUSIVE MODE");
+   else if (Matches("LOCK", MatchAny, "IN", "SHARE") ||
+            Matches("LOCK", "TABLE", MatchAny, "IN", "SHARE"))
+       COMPLETE_WITH("MODE", "ROW EXCLUSIVE MODE",
+                     "UPDATE EXCLUSIVE MODE");
 
 /* NOTIFY --- can be inside EXPLAIN, RULE, etc */
-   else if (TailMatches1("NOTIFY"))
+   else if (TailMatches("NOTIFY"))
        COMPLETE_WITH_QUERY("SELECT pg_catalog.quote_ident(channel) FROM pg_catalog.pg_listening_channels() AS channel WHERE substring(pg_catalog.quote_ident(channel),1,%d)='%s'");
 
 /* OPTIONS */
-   else if (TailMatches1("OPTIONS"))
-       COMPLETE_WITH_CONST("(");
+   else if (TailMatches("OPTIONS"))
+       COMPLETE_WITH("(");
 
 /* OWNER TO  - complete with available roles */
-   else if (TailMatches2("OWNER", "TO"))
+   else if (TailMatches("OWNER", "TO"))
        COMPLETE_WITH_QUERY(Query_for_list_of_roles);
 
 /* ORDER BY */
-   else if (TailMatches3("FROM", MatchAny, "ORDER"))
-       COMPLETE_WITH_CONST("BY");
-   else if (TailMatches4("FROM", MatchAny, "ORDER", "BY"))
+   else if (TailMatches("FROM", MatchAny, "ORDER"))
+       COMPLETE_WITH("BY");
+   else if (TailMatches("FROM", MatchAny, "ORDER", "BY"))
        COMPLETE_WITH_ATTR(prev3_wd, "");
 
 /* PREPARE xx AS */
-   else if (Matches3("PREPARE", MatchAny, "AS"))
-       COMPLETE_WITH_LIST4("SELECT", "UPDATE", "INSERT", "DELETE FROM");
+   else if (Matches("PREPARE", MatchAny, "AS"))
+       COMPLETE_WITH("SELECT", "UPDATE", "INSERT", "DELETE FROM");
 
 /*
  * PREPARE TRANSACTION is missing on purpose. It's intended for transaction
@@ -3205,158 +3046,149 @@ psql_completion(const char *text, int start, int end)
  */
 
 /* REASSIGN OWNED BY xxx TO yyy */
-   else if (Matches1("REASSIGN"))
-       COMPLETE_WITH_CONST("OWNED BY");
-   else if (Matches2("REASSIGN", "OWNED"))
-       COMPLETE_WITH_CONST("BY");
-   else if (Matches3("REASSIGN", "OWNED", "BY"))
+   else if (Matches("REASSIGN"))
+       COMPLETE_WITH("OWNED BY");
+   else if (Matches("REASSIGN", "OWNED"))
+       COMPLETE_WITH("BY");
+   else if (Matches("REASSIGN", "OWNED", "BY"))
        COMPLETE_WITH_QUERY(Query_for_list_of_roles);
-   else if (Matches4("REASSIGN", "OWNED", "BY", MatchAny))
-       COMPLETE_WITH_CONST("TO");
-   else if (Matches5("REASSIGN", "OWNED", "BY", MatchAny, "TO"))
+   else if (Matches("REASSIGN", "OWNED", "BY", MatchAny))
+       COMPLETE_WITH("TO");
+   else if (Matches("REASSIGN", "OWNED", "BY", MatchAny, "TO"))
        COMPLETE_WITH_QUERY(Query_for_list_of_roles);
 
 /* REFRESH MATERIALIZED VIEW */
-   else if (Matches1("REFRESH"))
-       COMPLETE_WITH_CONST("MATERIALIZED VIEW");
-   else if (Matches2("REFRESH", "MATERIALIZED"))
-       COMPLETE_WITH_CONST("VIEW");
-   else if (Matches3("REFRESH", "MATERIALIZED", "VIEW"))
+   else if (Matches("REFRESH"))
+       COMPLETE_WITH("MATERIALIZED VIEW");
+   else if (Matches("REFRESH", "MATERIALIZED"))
+       COMPLETE_WITH("VIEW");
+   else if (Matches("REFRESH", "MATERIALIZED", "VIEW"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_matviews,
                                   " UNION SELECT 'CONCURRENTLY'");
-   else if (Matches4("REFRESH", "MATERIALIZED", "VIEW", "CONCURRENTLY"))
+   else if (Matches("REFRESH", "MATERIALIZED", "VIEW", "CONCURRENTLY"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_matviews, NULL);
-   else if (Matches4("REFRESH", "MATERIALIZED", "VIEW", MatchAny))
-       COMPLETE_WITH_CONST("WITH");
-   else if (Matches5("REFRESH", "MATERIALIZED", "VIEW", "CONCURRENTLY", MatchAny))
-       COMPLETE_WITH_CONST("WITH");
-   else if (Matches5("REFRESH", "MATERIALIZED", "VIEW", MatchAny, "WITH"))
-       COMPLETE_WITH_LIST2("NO DATA", "DATA");
-   else if (Matches6("REFRESH", "MATERIALIZED", "VIEW", "CONCURRENTLY", MatchAny, "WITH"))
-       COMPLETE_WITH_LIST2("NO DATA", "DATA");
-   else if (Matches6("REFRESH", "MATERIALIZED", "VIEW", MatchAny, "WITH", "NO"))
-       COMPLETE_WITH_CONST("DATA");
-   else if (Matches7("REFRESH", "MATERIALIZED", "VIEW", "CONCURRENTLY", MatchAny, "WITH", "NO"))
-       COMPLETE_WITH_CONST("DATA");
+   else if (Matches("REFRESH", "MATERIALIZED", "VIEW", MatchAny))
+       COMPLETE_WITH("WITH");
+   else if (Matches("REFRESH", "MATERIALIZED", "VIEW", "CONCURRENTLY", MatchAny))
+       COMPLETE_WITH("WITH");
+   else if (Matches("REFRESH", "MATERIALIZED", "VIEW", MatchAny, "WITH"))
+       COMPLETE_WITH("NO DATA", "DATA");
+   else if (Matches("REFRESH", "MATERIALIZED", "VIEW", "CONCURRENTLY", MatchAny, "WITH"))
+       COMPLETE_WITH("NO DATA", "DATA");
+   else if (Matches("REFRESH", "MATERIALIZED", "VIEW", MatchAny, "WITH", "NO"))
+       COMPLETE_WITH("DATA");
+   else if (Matches("REFRESH", "MATERIALIZED", "VIEW", "CONCURRENTLY", MatchAny, "WITH", "NO"))
+       COMPLETE_WITH("DATA");
 
 /* REINDEX */
-   else if (Matches1("REINDEX"))
-       COMPLETE_WITH_LIST5("TABLE", "INDEX", "SYSTEM", "SCHEMA", "DATABASE");
-   else if (Matches2("REINDEX", "TABLE"))
+   else if (Matches("REINDEX"))
+       COMPLETE_WITH("TABLE", "INDEX", "SYSTEM", "SCHEMA", "DATABASE");
+   else if (Matches("REINDEX", "TABLE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexables, NULL);
-   else if (Matches2("REINDEX", "INDEX"))
+   else if (Matches("REINDEX", "INDEX"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexes, NULL);
-   else if (Matches2("REINDEX", "SCHEMA"))
+   else if (Matches("REINDEX", "SCHEMA"))
        COMPLETE_WITH_QUERY(Query_for_list_of_schemas);
-   else if (Matches2("REINDEX", "SYSTEM|DATABASE"))
+   else if (Matches("REINDEX", "SYSTEM|DATABASE"))
        COMPLETE_WITH_QUERY(Query_for_list_of_databases);
 
 /* SECURITY LABEL */
-   else if (Matches1("SECURITY"))
-       COMPLETE_WITH_CONST("LABEL");
-   else if (Matches2("SECURITY", "LABEL"))
-       COMPLETE_WITH_LIST2("ON", "FOR");
-   else if (Matches4("SECURITY", "LABEL", "FOR", MatchAny))
-       COMPLETE_WITH_CONST("ON");
-   else if (Matches3("SECURITY", "LABEL", "ON") ||
-            Matches5("SECURITY", "LABEL", "FOR", MatchAny, "ON"))
-   {
-       static const char *const list_SECURITY_LABEL[] =
-       {"TABLE", "COLUMN", "AGGREGATE", "DATABASE", "DOMAIN",
-           "EVENT TRIGGER", "FOREIGN TABLE", "FUNCTION", "LARGE OBJECT",
-           "MATERIALIZED VIEW", "LANGUAGE", "PUBLICATION", "PROCEDURE", "ROLE", "ROUTINE", "SCHEMA",
-       "SEQUENCE", "SUBSCRIPTION", "TABLESPACE", "TYPE", "VIEW", NULL};
-
-       COMPLETE_WITH_LIST(list_SECURITY_LABEL);
-   }
-   else if (Matches5("SECURITY", "LABEL", "ON", MatchAny, MatchAny))
-       COMPLETE_WITH_CONST("IS");
+   else if (Matches("SECURITY"))
+       COMPLETE_WITH("LABEL");
+   else if (Matches("SECURITY", "LABEL"))
+       COMPLETE_WITH("ON", "FOR");
+   else if (Matches("SECURITY", "LABEL", "FOR", MatchAny))
+       COMPLETE_WITH("ON");
+   else if (Matches("SECURITY", "LABEL", "ON") ||
+            Matches("SECURITY", "LABEL", "FOR", MatchAny, "ON"))
+       COMPLETE_WITH("TABLE", "COLUMN", "AGGREGATE", "DATABASE", "DOMAIN",
+                     "EVENT TRIGGER", "FOREIGN TABLE", "FUNCTION",
+                     "LARGE OBJECT", "MATERIALIZED VIEW", "LANGUAGE",
+                     "PUBLICATION", "PROCEDURE", "ROLE", "ROUTINE", "SCHEMA",
+                     "SEQUENCE", "SUBSCRIPTION", "TABLESPACE", "TYPE", "VIEW");
+   else if (Matches("SECURITY", "LABEL", "ON", MatchAny, MatchAny))
+       COMPLETE_WITH("IS");
 
 /* SELECT */
    /* naah . . . */
 
 /* SET, RESET, SHOW */
    /* Complete with a variable name */
-   else if (TailMatches1("SET|RESET") && !TailMatches3("UPDATE", MatchAny, "SET"))
+   else if (TailMatches("SET|RESET") && !TailMatches("UPDATE", MatchAny, "SET"))
        COMPLETE_WITH_QUERY(Query_for_list_of_set_vars);
-   else if (Matches1("SHOW"))
+   else if (Matches("SHOW"))
        COMPLETE_WITH_QUERY(Query_for_list_of_show_vars);
    /* Complete "SET TRANSACTION" */
-   else if (Matches2("SET", "TRANSACTION"))
-       COMPLETE_WITH_LIST5("SNAPSHOT", "ISOLATION LEVEL", "READ", "DEFERRABLE", "NOT DEFERRABLE");
-   else if (Matches2("BEGIN|START", "TRANSACTION") ||
-            Matches2("BEGIN", "WORK") ||
-            Matches1("BEGIN") ||
-            Matches5("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION"))
-       COMPLETE_WITH_LIST4("ISOLATION LEVEL", "READ", "DEFERRABLE", "NOT DEFERRABLE");
-   else if (Matches3("SET|BEGIN|START", "TRANSACTION|WORK", "NOT") ||
-            Matches2("BEGIN", "NOT") ||
-            Matches6("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "NOT"))
-       COMPLETE_WITH_CONST("DEFERRABLE");
-   else if (Matches3("SET|BEGIN|START", "TRANSACTION|WORK", "ISOLATION") ||
-            Matches2("BEGIN", "ISOLATION") ||
-            Matches6("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "ISOLATION"))
-       COMPLETE_WITH_CONST("LEVEL");
-   else if (Matches4("SET|BEGIN|START", "TRANSACTION|WORK", "ISOLATION", "LEVEL") ||
-            Matches3("BEGIN", "ISOLATION", "LEVEL") ||
-            Matches7("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "ISOLATION", "LEVEL"))
-       COMPLETE_WITH_LIST3("READ", "REPEATABLE READ", "SERIALIZABLE");
-   else if (Matches5("SET|BEGIN|START", "TRANSACTION|WORK", "ISOLATION", "LEVEL", "READ") ||
-            Matches4("BEGIN", "ISOLATION", "LEVEL", "READ") ||
-            Matches8("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "ISOLATION", "LEVEL", "READ"))
-       COMPLETE_WITH_LIST2("UNCOMMITTED", "COMMITTED");
-   else if (Matches5("SET|BEGIN|START", "TRANSACTION|WORK", "ISOLATION", "LEVEL", "REPEATABLE") ||
-            Matches4("BEGIN", "ISOLATION", "LEVEL", "REPEATABLE") ||
-            Matches8("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "ISOLATION", "LEVEL", "REPEATABLE"))
-       COMPLETE_WITH_CONST("READ");
-   else if (Matches3("SET|BEGIN|START", "TRANSACTION|WORK", "READ") ||
-            Matches2("BEGIN", "READ") ||
-            Matches6("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "READ"))
-       COMPLETE_WITH_LIST2("ONLY", "WRITE");
+   else if (Matches("SET", "TRANSACTION"))
+       COMPLETE_WITH("SNAPSHOT", "ISOLATION LEVEL", "READ", "DEFERRABLE", "NOT DEFERRABLE");
+   else if (Matches("BEGIN|START", "TRANSACTION") ||
+            Matches("BEGIN", "WORK") ||
+            Matches("BEGIN") ||
+            Matches("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION"))
+       COMPLETE_WITH("ISOLATION LEVEL", "READ", "DEFERRABLE", "NOT DEFERRABLE");
+   else if (Matches("SET|BEGIN|START", "TRANSACTION|WORK", "NOT") ||
+            Matches("BEGIN", "NOT") ||
+            Matches("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "NOT"))
+       COMPLETE_WITH("DEFERRABLE");
+   else if (Matches("SET|BEGIN|START", "TRANSACTION|WORK", "ISOLATION") ||
+            Matches("BEGIN", "ISOLATION") ||
+            Matches("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "ISOLATION"))
+       COMPLETE_WITH("LEVEL");
+   else if (Matches("SET|BEGIN|START", "TRANSACTION|WORK", "ISOLATION", "LEVEL") ||
+            Matches("BEGIN", "ISOLATION", "LEVEL") ||
+            Matches("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "ISOLATION", "LEVEL"))
+       COMPLETE_WITH("READ", "REPEATABLE READ", "SERIALIZABLE");
+   else if (Matches("SET|BEGIN|START", "TRANSACTION|WORK", "ISOLATION", "LEVEL", "READ") ||
+            Matches("BEGIN", "ISOLATION", "LEVEL", "READ") ||
+            Matches("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "ISOLATION", "LEVEL", "READ"))
+       COMPLETE_WITH("UNCOMMITTED", "COMMITTED");
+   else if (Matches("SET|BEGIN|START", "TRANSACTION|WORK", "ISOLATION", "LEVEL", "REPEATABLE") ||
+            Matches("BEGIN", "ISOLATION", "LEVEL", "REPEATABLE") ||
+            Matches("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "ISOLATION", "LEVEL", "REPEATABLE"))
+       COMPLETE_WITH("READ");
+   else if (Matches("SET|BEGIN|START", "TRANSACTION|WORK", "READ") ||
+            Matches("BEGIN", "READ") ||
+            Matches("SET", "SESSION", "CHARACTERISTICS", "AS", "TRANSACTION", "READ"))
+       COMPLETE_WITH("ONLY", "WRITE");
    /* SET CONSTRAINTS */
-   else if (Matches2("SET", "CONSTRAINTS"))
+   else if (Matches("SET", "CONSTRAINTS"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_constraints_with_schema, "UNION SELECT 'ALL'");
    /* Complete SET CONSTRAINTS  with DEFERRED|IMMEDIATE */
-   else if (Matches3("SET", "CONSTRAINTS", MatchAny))
-       COMPLETE_WITH_LIST2("DEFERRED", "IMMEDIATE");
+   else if (Matches("SET", "CONSTRAINTS", MatchAny))
+       COMPLETE_WITH("DEFERRED", "IMMEDIATE");
    /* Complete SET ROLE */
-   else if (Matches2("SET", "ROLE"))
+   else if (Matches("SET", "ROLE"))
        COMPLETE_WITH_QUERY(Query_for_list_of_roles);
    /* Complete SET SESSION with AUTHORIZATION or CHARACTERISTICS... */
-   else if (Matches2("SET", "SESSION"))
-       COMPLETE_WITH_LIST2("AUTHORIZATION", "CHARACTERISTICS AS TRANSACTION");
+   else if (Matches("SET", "SESSION"))
+       COMPLETE_WITH("AUTHORIZATION", "CHARACTERISTICS AS TRANSACTION");
    /* Complete SET SESSION AUTHORIZATION with username */
-   else if (Matches3("SET", "SESSION", "AUTHORIZATION"))
+   else if (Matches("SET", "SESSION", "AUTHORIZATION"))
        COMPLETE_WITH_QUERY(Query_for_list_of_roles " UNION SELECT 'DEFAULT'");
    /* Complete RESET SESSION with AUTHORIZATION */
-   else if (Matches2("RESET", "SESSION"))
-       COMPLETE_WITH_CONST("AUTHORIZATION");
+   else if (Matches("RESET", "SESSION"))
+       COMPLETE_WITH("AUTHORIZATION");
    /* Complete SET  with "TO" */
-   else if (Matches2("SET", MatchAny))
-       COMPLETE_WITH_CONST("TO");
+   else if (Matches("SET", MatchAny))
+       COMPLETE_WITH("TO");
 
    /*
     * Complete ALTER DATABASE|FUNCTION||PROCEDURE|ROLE|ROUTINE|USER ... SET
     * 
     */
-   else if (HeadMatches2("ALTER", "DATABASE|FUNCTION|PROCEDURE|ROLE|ROUTINE|USER") &&
-            TailMatches2("SET", MatchAny))
-       COMPLETE_WITH_LIST2("FROM CURRENT", "TO");
+   else if (HeadMatches("ALTER", "DATABASE|FUNCTION|PROCEDURE|ROLE|ROUTINE|USER") &&
+            TailMatches("SET", MatchAny))
+       COMPLETE_WITH("FROM CURRENT", "TO");
    /* Suggest possible variable values */
-   else if (TailMatches3("SET", MatchAny, "TO|="))
+   else if (TailMatches("SET", MatchAny, "TO|="))
    {
        /* special cased code for individual GUCs */
-       if (TailMatches2("DateStyle", "TO|="))
-       {
-           static const char *const my_list[] =
-           {"ISO", "SQL", "Postgres", "German",
-               "YMD", "DMY", "MDY",
-               "US", "European", "NonEuropean",
-           "DEFAULT", NULL};
-
-           COMPLETE_WITH_LIST(my_list);
-       }
-       else if (TailMatches2("search_path", "TO|="))
+       if (TailMatches("DateStyle", "TO|="))
+           COMPLETE_WITH("ISO", "SQL", "Postgres", "German",
+                         "YMD", "DMY", "MDY",
+                         "US", "European", "NonEuropean",
+                         "DEFAULT");
+       else if (TailMatches("search_path", "TO|="))
            COMPLETE_WITH_QUERY(Query_for_list_of_schemas
                                " AND nspname not like 'pg\\_toast%%' "
                                " AND nspname not like 'pg\\_temp%%' "
@@ -3374,10 +3206,10 @@ psql_completion(const char *text, int start, int end)
                COMPLETE_WITH_QUERY(querybuf);
            }
            else if (guctype && strcmp(guctype, "bool") == 0)
-               COMPLETE_WITH_LIST9("on", "off", "true", "false", "yes", "no",
-                                   "1", "0", "DEFAULT");
+               COMPLETE_WITH("on", "off", "true", "false", "yes", "no",
+                             "1", "0", "DEFAULT");
            else
-               COMPLETE_WITH_CONST("DEFAULT");
+               COMPLETE_WITH("DEFAULT");
 
            if (guctype)
                free(guctype);
@@ -3385,83 +3217,83 @@ psql_completion(const char *text, int start, int end)
    }
 
 /* START TRANSACTION */
-   else if (Matches1("START"))
-       COMPLETE_WITH_CONST("TRANSACTION");
+   else if (Matches("START"))
+       COMPLETE_WITH("TRANSACTION");
 
 /* TABLE, but not TABLE embedded in other commands */
-   else if (Matches1("TABLE"))
+   else if (Matches("TABLE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_selectables, NULL);
 
 /* TABLESAMPLE */
-   else if (TailMatches1("TABLESAMPLE"))
+   else if (TailMatches("TABLESAMPLE"))
        COMPLETE_WITH_QUERY(Query_for_list_of_tablesample_methods);
-   else if (TailMatches2("TABLESAMPLE", MatchAny))
-       COMPLETE_WITH_CONST("(");
+   else if (TailMatches("TABLESAMPLE", MatchAny))
+       COMPLETE_WITH("(");
 
 /* TRUNCATE */
-   else if (Matches1("TRUNCATE"))
+   else if (Matches("TRUNCATE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
 
 /* UNLISTEN */
-   else if (Matches1("UNLISTEN"))
+   else if (Matches("UNLISTEN"))
        COMPLETE_WITH_QUERY("SELECT pg_catalog.quote_ident(channel) FROM pg_catalog.pg_listening_channels() AS channel WHERE substring(pg_catalog.quote_ident(channel),1,%d)='%s' UNION SELECT '*'");
 
 /* UPDATE --- can be inside EXPLAIN, RULE, etc */
    /* If prev. word is UPDATE suggest a list of tables */
-   else if (TailMatches1("UPDATE"))
+   else if (TailMatches("UPDATE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_updatables, NULL);
    /* Complete UPDATE 
 with "SET" */
-   else if (TailMatches2("UPDATE", MatchAny))
-       COMPLETE_WITH_CONST("SET");
+   else if (TailMatches("UPDATE", MatchAny))
+       COMPLETE_WITH("SET");
    /* Complete UPDATE 
 SET with list of attributes */
-   else if (TailMatches3("UPDATE", MatchAny, "SET"))
+   else if (TailMatches("UPDATE", MatchAny, "SET"))
        COMPLETE_WITH_ATTR(prev2_wd, "");
    /* UPDATE 
 SET  = */
-   else if (TailMatches4("UPDATE", MatchAny, "SET", MatchAny))
-       COMPLETE_WITH_CONST("=");
+   else if (TailMatches("UPDATE", MatchAny, "SET", MatchAny))
+       COMPLETE_WITH("=");
 
 /* USER MAPPING */
-   else if (Matches3("ALTER|CREATE|DROP", "USER", "MAPPING"))
-       COMPLETE_WITH_CONST("FOR");
-   else if (Matches4("CREATE", "USER", "MAPPING", "FOR"))
+   else if (Matches("ALTER|CREATE|DROP", "USER", "MAPPING"))
+       COMPLETE_WITH("FOR");
+   else if (Matches("CREATE", "USER", "MAPPING", "FOR"))
        COMPLETE_WITH_QUERY(Query_for_list_of_roles
                            " UNION SELECT 'CURRENT_USER'"
                            " UNION SELECT 'PUBLIC'"
                            " UNION SELECT 'USER'");
-   else if (Matches4("ALTER|DROP", "USER", "MAPPING", "FOR"))
+   else if (Matches("ALTER|DROP", "USER", "MAPPING", "FOR"))
        COMPLETE_WITH_QUERY(Query_for_list_of_user_mappings);
-   else if (Matches5("CREATE|ALTER|DROP", "USER", "MAPPING", "FOR", MatchAny))
-       COMPLETE_WITH_CONST("SERVER");
-   else if (Matches7("CREATE|ALTER", "USER", "MAPPING", "FOR", MatchAny, "SERVER", MatchAny))
-       COMPLETE_WITH_CONST("OPTIONS");
+   else if (Matches("CREATE|ALTER|DROP", "USER", "MAPPING", "FOR", MatchAny))
+       COMPLETE_WITH("SERVER");
+   else if (Matches("CREATE|ALTER", "USER", "MAPPING", "FOR", MatchAny, "SERVER", MatchAny))
+       COMPLETE_WITH("OPTIONS");
 
 /*
  * VACUUM [ ( option [, ...] ) ] [ table_and_columns [, ...] ]
  * VACUUM [ FULL ] [ FREEZE ] [ VERBOSE ] [ ANALYZE ] [ table_and_columns [, ...] ]
  */
-   else if (Matches1("VACUUM"))
+   else if (Matches("VACUUM"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_vacuumables,
                                   " UNION SELECT 'FULL'"
                                   " UNION SELECT 'FREEZE'"
                                   " UNION SELECT 'ANALYZE'"
                                   " UNION SELECT 'VERBOSE'");
-   else if (Matches2("VACUUM", "FULL"))
+   else if (Matches("VACUUM", "FULL"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_vacuumables,
                                   " UNION SELECT 'FREEZE'"
                                   " UNION SELECT 'ANALYZE'"
                                   " UNION SELECT 'VERBOSE'");
-   else if (Matches2("VACUUM", "FREEZE") ||
-            Matches3("VACUUM", "FULL", "FREEZE"))
+   else if (Matches("VACUUM", "FREEZE") ||
+            Matches("VACUUM", "FULL", "FREEZE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_vacuumables,
                                   " UNION SELECT 'VERBOSE'"
                                   " UNION SELECT 'ANALYZE'");
-   else if (Matches2("VACUUM", "VERBOSE") ||
-            Matches3("VACUUM", "FULL|FREEZE", "VERBOSE") ||
-            Matches4("VACUUM", "FULL", "FREEZE", "VERBOSE"))
+   else if (Matches("VACUUM", "VERBOSE") ||
+            Matches("VACUUM", "FULL|FREEZE", "VERBOSE") ||
+            Matches("VACUUM", "FULL", "FREEZE", "VERBOSE"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_vacuumables,
                                   " UNION SELECT 'ANALYZE'");
-   else if (HeadMatches2("VACUUM", "(*") &&
-            !HeadMatches2("VACUUM", "(*)"))
+   else if (HeadMatches("VACUUM", "(*") &&
+            !HeadMatches("VACUUM", "(*)"))
    {
        /*
         * This fires if we're in an unfinished parenthesized option list.
@@ -3469,13 +3301,13 @@ psql_completion(const char *text, int start, int end)
         * one word, so the above test is correct.
         */
        if (ends_with(prev_wd, '(') || ends_with(prev_wd, ','))
-           COMPLETE_WITH_LIST5("FULL", "FREEZE", "ANALYZE", "VERBOSE",
-                               "DISABLE_PAGE_SKIPPING");
+           COMPLETE_WITH("FULL", "FREEZE", "ANALYZE", "VERBOSE",
+                         "DISABLE_PAGE_SKIPPING");
    }
-   else if (HeadMatches1("VACUUM") && TailMatches1("("))
+   else if (HeadMatches("VACUUM") && TailMatches("("))
        /* "VACUUM (" should be caught above, so assume we want columns */
        COMPLETE_WITH_ATTR(prev2_wd, "");
-   else if (HeadMatches1("VACUUM"))
+   else if (HeadMatches("VACUUM"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_vacuumables, NULL);
 
 /* WITH [RECURSIVE] */
@@ -3484,109 +3316,109 @@ psql_completion(const char *text, int start, int end)
     * Only match when WITH is the first word, as WITH may appear in many
     * other contexts.
     */
-   else if (Matches1("WITH"))
-       COMPLETE_WITH_CONST("RECURSIVE");
+   else if (Matches("WITH"))
+       COMPLETE_WITH("RECURSIVE");
 
 /* WHERE */
    /* Simple case of the word before the where being the table name */
-   else if (TailMatches2(MatchAny, "WHERE"))
+   else if (TailMatches(MatchAny, "WHERE"))
        COMPLETE_WITH_ATTR(prev2_wd, "");
 
 /* ... FROM ... */
 /* TODO: also include SRF ? */
-   else if (TailMatches1("FROM") && !Matches3("COPY|\\copy", MatchAny, "FROM"))
+   else if (TailMatches("FROM") && !Matches("COPY|\\copy", MatchAny, "FROM"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_selectables, NULL);
 
 /* ... JOIN ... */
-   else if (TailMatches1("JOIN"))
+   else if (TailMatches("JOIN"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_selectables, NULL);
 
 /* Backslash commands */
 /* TODO:  \dc \dd \dl */
-   else if (TailMatchesCS1("\\?"))
-       COMPLETE_WITH_LIST_CS3("commands", "options", "variables");
-   else if (TailMatchesCS1("\\connect|\\c"))
+   else if (TailMatchesCS("\\?"))
+       COMPLETE_WITH_CS("commands", "options", "variables");
+   else if (TailMatchesCS("\\connect|\\c"))
    {
        if (!recognized_connection_string(text))
            COMPLETE_WITH_QUERY(Query_for_list_of_databases);
    }
-   else if (TailMatchesCS2("\\connect|\\c", MatchAny))
+   else if (TailMatchesCS("\\connect|\\c", MatchAny))
    {
        if (!recognized_connection_string(prev_wd))
            COMPLETE_WITH_QUERY(Query_for_list_of_roles);
    }
-   else if (TailMatchesCS1("\\da*"))
+   else if (TailMatchesCS("\\da*"))
        COMPLETE_WITH_VERSIONED_SCHEMA_QUERY(Query_for_list_of_aggregates, NULL);
-   else if (TailMatchesCS1("\\dA*"))
+   else if (TailMatchesCS("\\dA*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_access_methods);
-   else if (TailMatchesCS1("\\db*"))
+   else if (TailMatchesCS("\\db*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_tablespaces);
-   else if (TailMatchesCS1("\\dD*"))
+   else if (TailMatchesCS("\\dD*"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_domains, NULL);
-   else if (TailMatchesCS1("\\des*"))
+   else if (TailMatchesCS("\\des*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_servers);
-   else if (TailMatchesCS1("\\deu*"))
+   else if (TailMatchesCS("\\deu*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_user_mappings);
-   else if (TailMatchesCS1("\\dew*"))
+   else if (TailMatchesCS("\\dew*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_fdws);
-   else if (TailMatchesCS1("\\df*"))
+   else if (TailMatchesCS("\\df*"))
        COMPLETE_WITH_VERSIONED_SCHEMA_QUERY(Query_for_list_of_functions, NULL);
 
-   else if (TailMatchesCS1("\\dFd*"))
+   else if (TailMatchesCS("\\dFd*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_ts_dictionaries);
-   else if (TailMatchesCS1("\\dFp*"))
+   else if (TailMatchesCS("\\dFp*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_ts_parsers);
-   else if (TailMatchesCS1("\\dFt*"))
+   else if (TailMatchesCS("\\dFt*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_ts_templates);
    /* must be at end of \dF alternatives: */
-   else if (TailMatchesCS1("\\dF*"))
+   else if (TailMatchesCS("\\dF*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_ts_configurations);
 
-   else if (TailMatchesCS1("\\di*"))
+   else if (TailMatchesCS("\\di*"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_indexes, NULL);
-   else if (TailMatchesCS1("\\dL*"))
+   else if (TailMatchesCS("\\dL*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_languages);
-   else if (TailMatchesCS1("\\dn*"))
+   else if (TailMatchesCS("\\dn*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_schemas);
-   else if (TailMatchesCS1("\\dp") || TailMatchesCS1("\\z"))
+   else if (TailMatchesCS("\\dp") || TailMatchesCS("\\z"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_grantables, NULL);
-   else if (TailMatchesCS1("\\ds*"))
+   else if (TailMatchesCS("\\ds*"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_sequences, NULL);
-   else if (TailMatchesCS1("\\dt*"))
+   else if (TailMatchesCS("\\dt*"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_tables, NULL);
-   else if (TailMatchesCS1("\\dT*"))
+   else if (TailMatchesCS("\\dT*"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_datatypes, NULL);
-   else if (TailMatchesCS1("\\du*") || TailMatchesCS1("\\dg*"))
+   else if (TailMatchesCS("\\du*") || TailMatchesCS("\\dg*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_roles);
-   else if (TailMatchesCS1("\\dv*"))
+   else if (TailMatchesCS("\\dv*"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_views, NULL);
-   else if (TailMatchesCS1("\\dx*"))
+   else if (TailMatchesCS("\\dx*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_extensions);
-   else if (TailMatchesCS1("\\dm*"))
+   else if (TailMatchesCS("\\dm*"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_matviews, NULL);
-   else if (TailMatchesCS1("\\dE*"))
+   else if (TailMatchesCS("\\dE*"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_foreign_tables, NULL);
-   else if (TailMatchesCS1("\\dy*"))
+   else if (TailMatchesCS("\\dy*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_event_triggers);
 
    /* must be at end of \d alternatives: */
-   else if (TailMatchesCS1("\\d*"))
+   else if (TailMatchesCS("\\d*"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_relations, NULL);
 
-   else if (TailMatchesCS1("\\ef"))
+   else if (TailMatchesCS("\\ef"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_routines, NULL);
-   else if (TailMatchesCS1("\\ev"))
+   else if (TailMatchesCS("\\ev"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_views, NULL);
 
-   else if (TailMatchesCS1("\\encoding"))
+   else if (TailMatchesCS("\\encoding"))
        COMPLETE_WITH_QUERY(Query_for_list_of_encodings);
-   else if (TailMatchesCS1("\\h|\\help"))
+   else if (TailMatchesCS("\\h|\\help"))
        COMPLETE_WITH_LIST(sql_commands);
-   else if (TailMatchesCS2("\\h|\\help", MatchAny))
+   else if (TailMatchesCS("\\h|\\help", MatchAny))
    {
-       if (TailMatches1("DROP"))
+       if (TailMatches("DROP"))
            matches = completion_matches(text, drop_command_generator);
-       else if (TailMatches1("ALTER"))
+       else if (TailMatches("ALTER"))
            matches = completion_matches(text, alter_command_generator);
 
        /*
@@ -3594,101 +3426,96 @@ psql_completion(const char *text, int start, int end)
         * repeated here
         */
    }
-   else if (TailMatchesCS3("\\h|\\help", MatchAny, MatchAny))
+   else if (TailMatchesCS("\\h|\\help", MatchAny, MatchAny))
    {
-       if (TailMatches2("CREATE|DROP", "ACCESS"))
-           COMPLETE_WITH_CONST("METHOD");
-       else if (TailMatches2("ALTER", "DEFAULT"))
-           COMPLETE_WITH_CONST("PRIVILEGES");
-       else if (TailMatches2("CREATE|ALTER|DROP", "EVENT"))
-           COMPLETE_WITH_CONST("TRIGGER");
-       else if (TailMatches2("CREATE|ALTER|DROP", "FOREIGN"))
-           COMPLETE_WITH_LIST2("DATA WRAPPER", "TABLE");
-       else if (TailMatches2("ALTER", "LARGE"))
-           COMPLETE_WITH_CONST("OBJECT");
-       else if (TailMatches2("CREATE|ALTER|DROP", "MATERIALIZED"))
-           COMPLETE_WITH_CONST("VIEW");
-       else if (TailMatches2("CREATE|ALTER|DROP", "TEXT"))
-           COMPLETE_WITH_CONST("SEARCH");
-       else if (TailMatches2("CREATE|ALTER|DROP", "USER"))
-           COMPLETE_WITH_CONST("MAPPING FOR");
+       if (TailMatches("CREATE|DROP", "ACCESS"))
+           COMPLETE_WITH("METHOD");
+       else if (TailMatches("ALTER", "DEFAULT"))
+           COMPLETE_WITH("PRIVILEGES");
+       else if (TailMatches("CREATE|ALTER|DROP", "EVENT"))
+           COMPLETE_WITH("TRIGGER");
+       else if (TailMatches("CREATE|ALTER|DROP", "FOREIGN"))
+           COMPLETE_WITH("DATA WRAPPER", "TABLE");
+       else if (TailMatches("ALTER", "LARGE"))
+           COMPLETE_WITH("OBJECT");
+       else if (TailMatches("CREATE|ALTER|DROP", "MATERIALIZED"))
+           COMPLETE_WITH("VIEW");
+       else if (TailMatches("CREATE|ALTER|DROP", "TEXT"))
+           COMPLETE_WITH("SEARCH");
+       else if (TailMatches("CREATE|ALTER|DROP", "USER"))
+           COMPLETE_WITH("MAPPING FOR");
    }
-   else if (TailMatchesCS4("\\h|\\help", MatchAny, MatchAny, MatchAny))
+   else if (TailMatchesCS("\\h|\\help", MatchAny, MatchAny, MatchAny))
    {
-       if (TailMatches3("CREATE|ALTER|DROP", "FOREIGN", "DATA"))
-           COMPLETE_WITH_CONST("WRAPPER");
-       else if (TailMatches3("CREATE|ALTER|DROP", "TEXT", "SEARCH"))
-           COMPLETE_WITH_LIST4("CONFIGURATION", "DICTIONARY", "PARSER", "TEMPLATE");
-       else if (TailMatches3("CREATE|ALTER|DROP", "USER", "MAPPING"))
-           COMPLETE_WITH_CONST("FOR");
+       if (TailMatches("CREATE|ALTER|DROP", "FOREIGN", "DATA"))
+           COMPLETE_WITH("WRAPPER");
+       else if (TailMatches("CREATE|ALTER|DROP", "TEXT", "SEARCH"))
+           COMPLETE_WITH("CONFIGURATION", "DICTIONARY", "PARSER", "TEMPLATE");
+       else if (TailMatches("CREATE|ALTER|DROP", "USER", "MAPPING"))
+           COMPLETE_WITH("FOR");
    }
-   else if (TailMatchesCS1("\\l*") && !TailMatchesCS1("\\lo*"))
+   else if (TailMatchesCS("\\l*") && !TailMatchesCS("\\lo*"))
        COMPLETE_WITH_QUERY(Query_for_list_of_databases);
-   else if (TailMatchesCS1("\\password"))
+   else if (TailMatchesCS("\\password"))
        COMPLETE_WITH_QUERY(Query_for_list_of_roles);
-   else if (TailMatchesCS1("\\pset"))
-   {
-       static const char *const my_list[] =
-       {"border", "columns", "expanded", "fieldsep", "fieldsep_zero",
-           "footer", "format", "linestyle", "null", "numericlocale",
-           "pager", "pager_min_lines", "recordsep", "recordsep_zero",
-           "tableattr", "title", "tuples_only", "unicode_border_linestyle",
-       "unicode_column_linestyle", "unicode_header_linestyle", NULL};
-
-       COMPLETE_WITH_LIST_CS(my_list);
-   }
-   else if (TailMatchesCS2("\\pset", MatchAny))
+   else if (TailMatchesCS("\\pset"))
+       COMPLETE_WITH_CS("border", "columns", "expanded",
+                        "fieldsep", "fieldsep_zero", "footer", "format",
+                        "linestyle", "null", "numericlocale",
+                        "pager", "pager_min_lines",
+                        "recordsep", "recordsep_zero",
+                        "tableattr", "title", "tuples_only",
+                        "unicode_border_linestyle",
+                        "unicode_column_linestyle",
+                        "unicode_header_linestyle");
+   else if (TailMatchesCS("\\pset", MatchAny))
    {
-       if (TailMatchesCS1("format"))
-       {
-           static const char *const my_list[] =
-           {"unaligned", "aligned", "wrapped", "html", "asciidoc",
-           "latex", "latex-longtable", "troff-ms", NULL};
-
-           COMPLETE_WITH_LIST_CS(my_list);
-       }
-       else if (TailMatchesCS1("linestyle"))
-           COMPLETE_WITH_LIST_CS3("ascii", "old-ascii", "unicode");
-       else if (TailMatchesCS1("pager"))
-           COMPLETE_WITH_LIST_CS3("on", "off", "always");
-       else if (TailMatchesCS1("unicode_border_linestyle|"
-                               "unicode_column_linestyle|"
-                               "unicode_header_linestyle"))
-           COMPLETE_WITH_LIST_CS2("single", "double");
+       if (TailMatchesCS("format"))
+           COMPLETE_WITH_CS("unaligned", "aligned", "wrapped", "html",
+                            "asciidoc", "latex", "latex-longtable",
+                            "troff-ms");
+       else if (TailMatchesCS("linestyle"))
+           COMPLETE_WITH_CS("ascii", "old-ascii", "unicode");
+       else if (TailMatchesCS("pager"))
+           COMPLETE_WITH_CS("on", "off", "always");
+       else if (TailMatchesCS("unicode_border_linestyle|"
+                              "unicode_column_linestyle|"
+                              "unicode_header_linestyle"))
+           COMPLETE_WITH_CS("single", "double");
    }
-   else if (TailMatchesCS1("\\unset"))
+   else if (TailMatchesCS("\\unset"))
        matches = complete_from_variables(text, "", "", true);
-   else if (TailMatchesCS1("\\set"))
+   else if (TailMatchesCS("\\set"))
        matches = complete_from_variables(text, "", "", false);
-   else if (TailMatchesCS2("\\set", MatchAny))
+   else if (TailMatchesCS("\\set", MatchAny))
    {
-       if (TailMatchesCS1("AUTOCOMMIT|ON_ERROR_STOP|QUIET|"
-                          "SINGLELINE|SINGLESTEP"))
-           COMPLETE_WITH_LIST_CS2("on", "off");
-       else if (TailMatchesCS1("COMP_KEYWORD_CASE"))
-           COMPLETE_WITH_LIST_CS4("lower", "upper",
-                                  "preserve-lower", "preserve-upper");
-       else if (TailMatchesCS1("ECHO"))
-           COMPLETE_WITH_LIST_CS4("errors", "queries", "all", "none");
-       else if (TailMatchesCS1("ECHO_HIDDEN"))
-           COMPLETE_WITH_LIST_CS3("noexec", "off", "on");
-       else if (TailMatchesCS1("HISTCONTROL"))
-           COMPLETE_WITH_LIST_CS4("ignorespace", "ignoredups",
-                                  "ignoreboth", "none");
-       else if (TailMatchesCS1("ON_ERROR_ROLLBACK"))
-           COMPLETE_WITH_LIST_CS3("on", "off", "interactive");
-       else if (TailMatchesCS1("SHOW_CONTEXT"))
-           COMPLETE_WITH_LIST_CS3("never", "errors", "always");
-       else if (TailMatchesCS1("VERBOSITY"))
-           COMPLETE_WITH_LIST_CS3("default", "verbose", "terse");
+       if (TailMatchesCS("AUTOCOMMIT|ON_ERROR_STOP|QUIET|"
+                         "SINGLELINE|SINGLESTEP"))
+           COMPLETE_WITH_CS("on", "off");
+       else if (TailMatchesCS("COMP_KEYWORD_CASE"))
+           COMPLETE_WITH_CS("lower", "upper",
+                            "preserve-lower", "preserve-upper");
+       else if (TailMatchesCS("ECHO"))
+           COMPLETE_WITH_CS("errors", "queries", "all", "none");
+       else if (TailMatchesCS("ECHO_HIDDEN"))
+           COMPLETE_WITH_CS("noexec", "off", "on");
+       else if (TailMatchesCS("HISTCONTROL"))
+           COMPLETE_WITH_CS("ignorespace", "ignoredups",
+                            "ignoreboth", "none");
+       else if (TailMatchesCS("ON_ERROR_ROLLBACK"))
+           COMPLETE_WITH_CS("on", "off", "interactive");
+       else if (TailMatchesCS("SHOW_CONTEXT"))
+           COMPLETE_WITH_CS("never", "errors", "always");
+       else if (TailMatchesCS("VERBOSITY"))
+           COMPLETE_WITH_CS("default", "verbose", "terse");
    }
-   else if (TailMatchesCS1("\\sf*"))
+   else if (TailMatchesCS("\\sf*"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_routines, NULL);
-   else if (TailMatchesCS1("\\sv*"))
+   else if (TailMatchesCS("\\sv*"))
        COMPLETE_WITH_SCHEMA_QUERY(Query_for_list_of_views, NULL);
-   else if (TailMatchesCS1("\\cd|\\e|\\edit|\\g|\\i|\\include|"
-                           "\\ir|\\include_relative|\\o|\\out|"
-                           "\\s|\\w|\\write|\\lo_import"))
+   else if (TailMatchesCS("\\cd|\\e|\\edit|\\g|\\i|\\include|"
+                          "\\ir|\\include_relative|\\o|\\out|"
+                          "\\s|\\w|\\write|\\lo_import"))
    {
        completion_charp = "\\";
        matches = completion_matches(text, complete_from_files);
@@ -3726,7 +3553,7 @@ psql_completion(const char *text, int start, int end)
     */
    if (matches == NULL)
    {
-       COMPLETE_WITH_CONST("");
+       COMPLETE_WITH("");
 #ifdef HAVE_RL_COMPLETION_APPEND_CHARACTER
        rl_completion_append_character = '\0';
 #endif
index 901d7911980f4567d86c19bd4b4c48117998f86b..13c794d8eaa53123a9668de82a5933481c937beb 100644 (file)
 #define CppAsString2(x)            CppAsString(x)
 #define CppConcat(x, y)            x##y
 
+/*
+ * VA_ARGS_NARGS
+ *     Returns the number of macro arguments it is passed.
+ *
+ * An empty argument still counts as an argument, so effectively, this is
+ * "one more than the number of commas in the argument list".
+ *
+ * This works for up to 63 arguments.  Internally, VA_ARGS_NARGS_() is passed
+ * 64+N arguments, and the C99 standard only requires macros to allow up to
+ * 127 arguments, so we can't portably go higher.  The implementation is
+ * pretty trivial: VA_ARGS_NARGS_() returns its 64th argument, and we set up
+ * the call so that that is the appropriate one of the list of constants.
+ * This idea is due to Laurent Deniau.
+ */
+#define VA_ARGS_NARGS(...) \
+   VA_ARGS_NARGS_(__VA_ARGS__, \
+                  63,62,61,60,                   \
+                  59,58,57,56,55,54,53,52,51,50, \
+                  49,48,47,46,45,44,43,42,41,40, \
+                  39,38,37,36,35,34,33,32,31,30, \
+                  29,28,27,26,25,24,23,22,21,20, \
+                  19,18,17,16,15,14,13,12,11,10, \
+                  9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
+#define VA_ARGS_NARGS_( \
+   _01,_02,_03,_04,_05,_06,_07,_08,_09,_10, \
+   _11,_12,_13,_14,_15,_16,_17,_18,_19,_20, \
+   _21,_22,_23,_24,_25,_26,_27,_28,_29,_30, \
+   _31,_32,_33,_34,_35,_36,_37,_38,_39,_40, \
+   _41,_42,_43,_44,_45,_46,_47,_48,_49,_50, \
+   _51,_52,_53,_54,_55,_56,_57,_58,_59,_60, \
+   _61,_62,_63,  N, ...) \
+   (N)
+
 /*
  * dummyret is used to set return values in macros that use ?: to make
  * assignments.  gcc wants these to be void, other compilers like char