Fixed bug in Informix define handling.

diff --git a/src/interfaces/ecpg/ChangeLog b/src/interfaces/ecpg/ChangeLog
index 1dbed25..0a8dce3 100644 (file)
--- a/src/interfaces/ecpg/ChangeLog
+++ b/src/interfaces/ecpg/ChangeLog
@@ -2229,5 +2229,9 @@ Tue, 14 Aug 2007 11:46:51 +0200
 Wed, 22 Aug 2007 08:41:33 +0200
 
        - More cleaning up and removed some duplicates.
+
+Wed, 29 Aug 2007 15:41:58 +0200
+
+       - Fixed bug in Informix define handling.
        - Set ecpg library version to 6.0.
        - Set ecpg version to 4.4.

diff --git a/src/interfaces/ecpg/preproc/ecpg.c b/src/interfaces/ecpg/preproc/ecpg.c
index 2131185..1dbe4d4 100644 (file)
--- a/src/interfaces/ecpg/preproc/ecpg.c
+++ b/src/interfaces/ecpg/preproc/ecpg.c
@@ -1,4 +1,4 @@
-/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/ecpg.c,v 1.100 2007/08/14 10:01:53 meskes Exp $ */
+/* $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/ecpg.c,v 1.101 2007/08/29 13:58:13 meskes Exp $ */
 
 /* New main for ecpg, the PostgreSQL embedded SQL precompiler. */
 /* (C) Michael Meskes <meskes@postgresql.org> Feb 5th, 1998 */
@@ -212,11 +212,6 @@ main(int argc, char *const argv[])
                                        char            informix_path[MAXPGPATH];
 
                                        compat = (strcmp(optarg, "INFORMIX") == 0) ? ECPG_COMPAT_INFORMIX : ECPG_COMPAT_INFORMIX_SE;
-                                       /* system_includes = true; */
-                                       add_preprocessor_define("dec_t=decimal");
-                                       add_preprocessor_define("intrvl_t=interval");
-                                       add_preprocessor_define("dtime_t=timestamp");
-
                                        get_pkginclude_path(my_exec_path, pkginclude_path);
                                        snprintf(informix_path, MAXPGPATH, "%s/informix/esql", pkginclude_path);
                                        add_include_path(informix_path);

diff --git a/src/interfaces/ecpg/preproc/pgc.l b/src/interfaces/ecpg/preproc/pgc.l
index c9ba343..acfd618 100644 (file)
--- a/src/interfaces/ecpg/preproc/pgc.l
+++ b/src/interfaces/ecpg/preproc/pgc.l
@@ -12,7 +12,7 @@
  *
  *
  * IDENTIFICATION
- *       $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/pgc.l,v 1.154 2007/08/22 08:20:58 meskes Exp $
+ *       $PostgreSQL: pgsql/src/interfaces/ecpg/preproc/pgc.l,v 1.155 2007/08/29 13:58:13 meskes Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -50,6 +50,7 @@ static void parse_include (void);
 static void check_escape_warning(void);
 static bool ecpg_isspace(char ch);
 static bool isdefine(void);
+static bool isinformixdefine(void);
 
 char *token_start;
 int state_before;
@@ -751,8 +752,10 @@ cppline                    {space}*#(.*\\{space})*.*{newline}
                                        }
 <C>{identifier}        {
                                                const ScanKeyword               *keyword;
-
-                                               if (INFORMIX_MODE || !isdefine())
+                                                       
+                                               /* Informix uses SQL defines only in SQL space */
+                                               /* however, some defines have to be taken care of for compatibility */
+                                               if ((!INFORMIX_MODE || !isinformixdefine()) && !isdefine())
                                                {
                                                        keyword = ScanCKeywordLookup(yytext);
                                                        if (keyword != NULL)
@@ -1332,6 +1335,36 @@ static bool isdefine(void)
        return false;
 }
 
+static bool isinformixdefine(void)
+{
+       const char *new = NULL;
+
+       if (strcmp(yytext, "dec_t") == 0)
+               new = "decimal";
+       else if (strcmp(yytext, "intrvl_t") == 0)
+               new = "interval";
+       else if (strcmp(yytext, "dtime_t") == 0)
+                new = "timestamp";
+
+       if (new)
+       {
+               struct _yy_buffer *yb;
+
+               yb = mm_alloc(sizeof(struct _yy_buffer));
+
+               yb->buffer =  YY_CURRENT_BUFFER;
+               yb->lineno = yylineno;
+               yb->filename = mm_strdup(input_filename);
+               yb->next = yy_buffer;
+               yy_buffer = yb;
+
+               yy_scan_string(new);
+               return true;
+       }
+
+       return false;
+}
+
 /*
  * Called before any actual parsing is done
  */