Re: PATCH: Error parsing $(...)

[Peter Stephenson <p.w.stephenson@ntlworld.com>]

oncurrene of 43
On Thu, 26 Feb 2009 22:57:43 +0000
Peter Stephenson <p.w.stephenson@ntlworld.com> wrote:
> It's not quite that simple, since "#" is only a comment character
> at the start of a word.  The following is better, I hope I haven't
> missed any cases...

I should have tested for whitespace including a possible newline, not
separators, before the "#" for this level of parsing, and I should have
marked that a previous comment line ended in whitespace.

Index: Src/lex.c
===================================================================
RCS file: /cvsroot/zsh/zsh/Src/lex.c,v
retrieving revision 1.50
diff -u -r1.50 lex.c
--- Src/lex.c	26 Feb 2009 23:01:49 -0000	1.50
+++ Src/lex.c	27 Feb 2009 10:17:51 -0000
@@ -1813,7 +1813,7 @@
 	c = hgetc();
 	if (itok(c) || lexstop)
 	    break;
-	iswhite = isep(c);
+	iswhite = inblank(c);
 	switch (c) {
 	case '(':
 	    pct++;
@@ -1861,6 +1861,7 @@
 		add(c);
 		while ((c = hgetc()) != '\n' && !lexstop)
 		    add(c);
+		iswhite = 1;
 	    }
 	    break;
 	}
Index: Test/A01grammar.ztst
===================================================================
RCS file: /cvsroot/zsh/zsh/Test/A01grammar.ztst,v
retrieving revision 1.17
diff -u -r1.17 A01grammar.ztst
--- Test/A01grammar.ztst	11 May 2008 19:03:58 -0000	1.17
+++ Test/A01grammar.ztst	27 Feb 2009 10:17:51 -0000
@@ -503,3 +503,15 @@
   $ZTST_testdir/../Src/zsh -f NonExistentScript
 127q:Non-existent script causes exit status 127
 ?$ZTST_testdir/../Src/zsh: can't open input file: NonExistentScript
+
+  (setopt nonomatch
+  # use this to get stuff at start of line
+  contents=$'# comment \'\necho value #with " stuff\n# comment\n#comment
+  echo not#comment\n'
+  eval 'VAR=$('"$contents"')'
+  print -l $VAR)
+0:comments within $(...)
+>value
+>not#comment
+
+  

-- 
Peter Stephenson <p.w.stephenson@ntlworld.com>
Web page now at http://homepage.ntlworld.com/p.w.stephenson/