plpgsql: Rename a variable for clarity

Rename "core_yy_extra_type core_yy" to "core_yy_extra".  The previous
name was a bit unclear and confusing.  The new name matches the name
used elsewhere for the same purpose, for example in
src/backend/parser/gramparse.h.

diff --git a/src/pl/plpgsql/src/pl_scanner.c b/src/pl/plpgsql/src/pl_scanner.c
index 9407da51efa6b7e26ee124b2719ae4d8902738cc..45fb526585131a33f0243b1baec88197addbc0df 100644 (file)
--- a/src/pl/plpgsql/src/pl_scanner.c
+++ b/src/pl/plpgsql/src/pl_scanner.c
@@ -104,7 +104,7 @@ typedef struct
 
 /* The stuff the core lexer needs */
 static core_yyscan_t yyscanner = NULL;
-static core_yy_extra_type core_yy;
+static core_yy_extra_type core_yy_extra;
 
 /* The original input string */
 static const char *scanorig;
@@ -224,7 +224,7 @@ plpgsql_yylex(void)
                                push_back_token(tok3, &aux3);
                                push_back_token(tok2, &aux2);
                                if (plpgsql_parse_word(aux1.lval.str,
-                                                                          core_yy.scanbuf + aux1.lloc,
+                                                                          core_yy_extra.scanbuf + aux1.lloc,
                                                                           true,
                                                                           &aux1.lval.wdatum,
                                                                           &aux1.lval.word))
@@ -264,7 +264,7 @@ plpgsql_yylex(void)
                         * non-variable cases.
                         */
                        if (plpgsql_parse_word(aux1.lval.str,
-                                                                  core_yy.scanbuf + aux1.lloc,
+                                                                  core_yy_extra.scanbuf + aux1.lloc,
                                                                   (!AT_STMT_START(plpgsql_yytoken) ||
                                                                        (tok2 == '=' || tok2 == COLON_EQUALS ||
                                                                         tok2 == '[')),
@@ -340,7 +340,7 @@ internal_yylex(TokenAuxData *auxdata)
                                                   yyscanner);
 
                /* remember the length of yytext before it gets changed */
-               yytext = core_yy.scanbuf + auxdata->lloc;
+               yytext = core_yy_extra.scanbuf + auxdata->lloc;
                auxdata->leng = strlen(yytext);
 
                /* Check for << >> and #, which the core considers operators */
@@ -515,7 +515,7 @@ plpgsql_scanner_errposition(int location)
 void
 plpgsql_yyerror(const char *message)
 {
-       char       *yytext = core_yy.scanbuf + plpgsql_yylloc;
+       char       *yytext = core_yy_extra.scanbuf + plpgsql_yylloc;
 
        if (*yytext == '\0')
        {
@@ -603,7 +603,7 @@ void
 plpgsql_scanner_init(const char *str)
 {
        /* Start up the core scanner */
-       yyscanner = scanner_init(str, &core_yy,
+       yyscanner = scanner_init(str, &core_yy_extra,
                                                         &ReservedPLKeywords, ReservedPLKeywordTokens);
 
        /*