X-Git-Url: https://git.draconx.ca/gitweb/gob-dx.git/blobdiff_plain/853c670e4b839fd435507201f04d16080590a894..5cfe51ee2287165feb0cf006901bbbc2b961f3b8:/src/lexer.l

diff --git a/src/lexer.l b/src/lexer.l
index f45fcc5..37ec65a 100644
--- a/src/lexer.l
+++ b/src/lexer.l
@@ -23,6 +23,7 @@
 #include "config.h"
 #include <glib.h>
 #include <string.h>
+#include <ctype.h>
 
 #include "treefuncs.h"
 #include "parse.h"
@@ -46,6 +47,8 @@ GList *include_files = NULL;
 static int look_for_includes = 0;
 
 int line_no = 1;
+/* last filename parsed from a #line directive */
+char *hline_filename = NULL;
 
 static void
 clear_cbuf(void)
@@ -126,6 +129,44 @@ REJECT;
 }
 
 \/\/.*$			{ ; /*comment, ignore*/ }
+
+<*>^#[ \t]*line[ \t]+[0-9]+([ \t]\"[^\n\r\f\"]*\")? {
+	char *p;
+	char *number;
+	char *filename;
+	char *str=g_strdup(yytext);
+
+	/* find first digit of line number */
+	p=str;
+	while(*p&&!isdigit(*p)) p++;
+	number=p;
+  
+	/* find end of line number */
+	while(*p&&isdigit(*p)) p++;
+	if(*p) *p++=0;
+
+	/* find beginning of filename */
+	p=strchr(p,'"');
+	if(p) p++;
+	filename=p;
+
+	/* find end of filename */
+	if(p) p=strchr(p,'"');
+	if(p) *p=0;
+
+	/* stash number (minus one because we don't count this line) */  
+	if(number) line_no=atoi(number)-1;
+
+	/* stash filename */
+	if(filename) {
+		if(hline_filename) g_free(hline_filename);
+		hline_filename=g_strdup(filename);
+	}
+  
+	/* clean up */
+	g_free(str);
+}
+
 <C_CODE>^#[ \t]*include[ \t][<"][^\n">]*[>"] {
 	if(look_for_includes==1) {
 		char *p;
@@ -344,22 +385,41 @@ class		{
 ^[ \t]*requires[ \t]+[0-9]+\.[0-9]+\.[0-9]+[\t ]*$	{
 			int maj = 0,min = 0,pl = 0;
 			int rmaj = 0,rmin = 0,rpl = 0;
+			int effective_maj = 0;
+			int effective_rmaj = 0;
 			char *p;
 			
 			sscanf(VERSION,"%d.%d.%d",&rmaj,&rmin,&rpl);
+			effective_rmaj = rmaj;
+			if (rmin >= 90)
+				effective_rmaj = rmaj + 1;
+
 			p = strchr(yytext,'r');
 			g_assert(p); /* we MUST have found it */
 			sscanf(p,"requires %d.%d.%d",&maj,&min,&pl);
+			effective_maj = maj;
+			if (min >= 90)
+				effective_maj = maj + 1;
+
 			if(rmaj < maj ||
 			   (rmaj == maj && rmin < min) ||
 			   (rmaj == maj && rmin == min && rpl < pl)) {
 				error_printf(GOB_ERROR, line_no,
-					     "GOB version %d.%d.%d required "
+					     "GOB version at least %d.%d.%d required "
 					     "(this is %s)\n"
 					     "To upgrade your gob, see: "
 					     "http://www.5z.com/jirka/gob.html",
 					     maj, min, pl, VERSION);
 			}
+
+			if(effective_rmaj != effective_maj) {
+				error_printf(GOB_ERROR, line_no,
+					     "GOB major version %d required "
+					     "(this is %s)\n"
+					     "To upgrade your gob, see: "
+					     "http://www.5z.com/jirka/gob.html",
+					     maj, VERSION);
+			}
 		}
 
 <CLASS_CODE,CLASS_CODE_I>class|this	{
@@ -440,7 +500,7 @@ class		{
 				return '}';
 			}
 
-<CLASS_CODE,CLASS_CODE_I,INITIAL>[\t ]	;  /*ignore*/
+<CLASS_CODE,CLASS_CODE_I,INITIAL>[\f\t ]	;  /*ignore*/
 
 <*>.		{
 			yylval.line = line_no;