From af805ca0353df8c0e73ae3ab1e4f26786fa7b99a Mon Sep 17 00:00:00 2001
From: drh <drh@noemail.net>
Date: Tue, 7 Sep 2004 11:28:25 +0000
Subject: [PATCH] Lemon escapes backslashes in filenames in #line directives it
 generates. Ticket #892. (CVS 1943)

FossilOrigin-Name: d53047cbbc4e618c7bb5161b6f82876bb113db25
---
 manifest      | 12 ++++++------
 manifest.uuid |  2 +-
 tool/lemon.c  | 46 ++++++++++++++++++++++++++++++++++------------
 3 files changed, 41 insertions(+), 19 deletions(-)

diff --git a/manifest b/manifest
index de94f09967..d2863b1670 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Fix\smore\sname\scollisions.\s\sAllow\ssqlite.h\sand\ssqlite3.h\sto\sboth\sbe\sincluded\nin\sthe\ssame\sC/C++\ssource\sfile.\s(CVS\s1942)
-D 2004-09-06T17:34:13
+C Lemon\sescapes\sbackslashes\sin\sfilenames\sin\s#line\sdirectives\sit\sgenerates.\nTicket\s#892.\s(CVS\s1943)
+D 2004-09-07T11:28:25
 F Makefile.in 65a7c43fcaf9a710d62f120b11b6e435eeb4a450
 F Makefile.linux-gcc a9e5a0d309fa7c38e7c14d3ecf7690879d3a5457
 F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@@ -193,7 +193,7 @@ F test/varint.test ab7b110089a08b9926ed7390e7e97bdefeb74102
 F test/view.test ca5c296989d3045f121be9a67588ff88c64874a8
 F test/where.test 40dcffcb77ad0a00960cef2b5b1212c77fd02199
 F tool/diffdb.c 7524b1b5df217c20cd0431f6789851a4e0cb191b
-F tool/lemon.c ece41a3cd100e68fef5f136267cf02c44366c263
+F tool/lemon.c b64210ca04268681a74b32a830c64be523ccc859
 F tool/lempar.c 0b5e7a58634e0d448929b8e85f7981c2aa708d57
 F tool/memleak.awk b744b6109566206c746d826f6ecdba34662216bc
 F tool/memleak2.awk 9cc20c8e8f3c675efac71ea0721ee6874a1566e8
@@ -248,7 +248,7 @@ F www/tclsqlite.tcl 560ecd6a916b320e59f2917317398f3d59b7cc25
 F www/vdbe.tcl 59288db1ac5c0616296b26dce071c36cb611dfe9
 F www/version3.tcl 092a01f5ef430d2c4acc0ae558d74c4bb89638a0
 F www/whentouse.tcl a8335bce47cc2fddb07f19052cb0cb4d9129a8e4
-P 3ddf5a9d1c480a2e3aa32685879063b11afddbe1
-R 4e21ecb2dca1b0e6b2292d8785d52007
+P 23e5bed1c5062f0f639751f89873bf1a277547bd
+R e40cf5a15ff3721d6f9f87371f66f8fc
 U drh
-Z 6b0395c7e689562e57eb91318a8ed3d1
+Z 9268fa6b52f2c5d13e0dc61c8a84d6ef
diff --git a/manifest.uuid b/manifest.uuid
index f95ff803f0..96bb6f9a3b 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-23e5bed1c5062f0f639751f89873bf1a277547bd
\ No newline at end of file
+d53047cbbc4e618c7bb5161b6f82876bb113db25
\ No newline at end of file
diff --git a/tool/lemon.c b/tool/lemon.c
index 7b9b0c2e5a..97f3dc8ef6 100644
--- a/tool/lemon.c
+++ b/tool/lemon.c
@@ -2923,6 +2923,21 @@ struct lemon *lemp;
   return in;
 }
 
+/* Print a #line directive line to the output file. */
+PRIVATE void tplt_linedir(out,lineno,filename)
+FILE *out;
+int lineno;
+char *filename;
+{
+  fprintf(out,"#line %d \"",lineno);
+  while( *filename ){
+    if( *filename == '\\' ) putc('\\',out);
+    putc(*filename,out);
+    filename++;
+  }
+  fprintf(out,"\"\n");
+}
+
 /* Print a string to the file and keep the linenumber up to date */
 PRIVATE void tplt_print(out,lemp,str,strln,lineno)
 FILE *out;
@@ -2932,13 +2947,15 @@ int strln;
 int *lineno;
 {
   if( str==0 ) return;
-  fprintf(out,"#line %d \"%s\"\n",strln,lemp->filename); (*lineno)++;
+  tplt_linedir(out,strln,lemp->filename);
+  (*lineno)++;
   while( *str ){
     if( *str=='\n' ) (*lineno)++;
     putc(*str,out);
     str++;
   }
-  fprintf(out,"\n#line %d \"%s\"\n",*lineno+2,lemp->outname); (*lineno)+=2;
+  tplt_linedir(out,*lineno+2,lemp->outname); 
+  (*lineno)+=2;
   return;
 }
 
@@ -2958,14 +2975,17 @@ int *lineno;
  if( sp->type==TERMINAL ){
    cp = lemp->tokendest;
    if( cp==0 ) return;
-   fprintf(out,"#line %d \"%s\"\n{",lemp->tokendestln,lemp->filename);
+   tplt_linedir(out,lemp->tokendestln,lemp->filename);
+   fprintf(out,"{");
  }else if( sp->destructor ){
    cp = sp->destructor;
-   fprintf(out,"#line %d \"%s\"\n{",sp->destructorln,lemp->filename);
+   tplt_linedir(out,sp->destructorln,lemp->filename);
+   fprintf(out,"{");
  }else if( lemp->vardest ){
    cp = lemp->vardest;
    if( cp==0 ) return;
-   fprintf(out,"#line %d \"%s\"\n{",lemp->vardestln,lemp->filename);
+   tplt_linedir(out,lemp->vardestln,lemp->filename);
+   fprintf(out,"{");
  }else{
    assert( 0 );  /* Cannot happen */
  }
@@ -2979,7 +2999,8 @@ int *lineno;
    fputc(*cp,out);
  }
  (*lineno) += 3 + linecnt;
- fprintf(out,"}\n#line %d \"%s\"\n",*lineno,lemp->outname);
+ fprintf(out,"}\n");
+ tplt_linedir(out,*lineno,lemp->outname);
  return;
 }
 
@@ -3015,7 +3036,7 @@ PRIVATE char *append_str(char *zText, int n, int p1, int p2){
   static char *z = 0;
   static int alloced = 0;
   static int used = 0;
-  int i, c;
+  int c;
   char zInt[40];
 
   if( zText==0 ){
@@ -3054,9 +3075,9 @@ PRIVATE char *append_str(char *zText, int n, int p1, int p2){
 /*
 ** zCode is a string that is the action associated with a rule.  Expand
 ** the symbols in this string so that the refer to elements of the parser
-** stack.  Return a new string stored in space obtained from malloc.
+** stack.
 */
-PRIVATE char *translate_code(struct lemon *lemp, struct rule *rp){
+PRIVATE void translate_code(struct lemon *lemp, struct rule *rp){
   char *cp, *xp;
   int i;
   char lhsused = 0;    /* True if the LHS element has been used */
@@ -3142,13 +3163,14 @@ int *lineno;
 
  /* Generate code to do the reduce action */
  if( rp->code ){
-   fprintf(out,"#line %d \"%s\"\n{",rp->line,lemp->filename);
-   fprintf(out,"%s",rp->code);
+   tplt_linedir(out,rp->line,lemp->filename);
+   fprintf(out,"{%s",rp->code);
    for(cp=rp->code; *cp; cp++){
      if( *cp=='\n' ) linecnt++;
    } /* End loop */
    (*lineno) += 3 + linecnt;
-   fprintf(out,"}\n#line %d \"%s\"\n",*lineno,lemp->outname);
+   fprintf(out,"}\n");
+   tplt_linedir(out,*lineno,lemp->outname);
  } /* End if( rp->code ) */
 
  return;