Hi Charles!
On Mo, 22 Aug 2011, Charles Campbell wrote:
> The following short C file illustrates this problem:
>
> /* abc.c: */
> #include <stdio.h>
>
> #if 0
> int main()
> {
> printf("testing\n");
> return 0;
> }
> #endif
>
> /* Modelines:
> * vim: fdm=syntax
> */
>
> The #if 0 ... #endif region does not fold (and the modeline has set
> fdm to syntax). I see this behavior with
>
> vim -u NONE -N --noplugins abc.c
> :syn on
>
> The modelines comment does fold, thereby indicating that the
> syntax-based folding is active.
>
> Version information:
>
> VIM - Vi IMproved 7.3 (2010 Aug 15, compiled Aug 22 2011 12:23:56)
> Included patches: 1-285
> Compiled by [email protected]
> Huge version with GTK2 GUI. Features included (+) or not (-):
I see. Attached patch fixes it.
regards,
Christian
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diff --git a/runtime/syntax/c.vim b/runtime/syntax/c.vim
--- a/runtime/syntax/c.vim
+++ b/runtime/syntax/c.vim
@@ -276,7 +276,7 @@
syn match cPreConditMatch display "^\s*\(%:\|#\)\s*\(else\|endif\|elif\)\>"
if !exists("c_no_if0")
syn cluster cCppOutInGroup contains=cCppInIf,cCppInElse,cCppInElse2,cCppOutIf,cCppOutIf2,cCppOutElse,cCppInSkip,cCppOutSkip
- syn region cCppOutWrapper start="^\s*\(%:\|#\)\s*if\s\+0\+\s*\($\|//\|/\*\|&\)" end=".\@=\|$" contains=cCppOutIf,cCppOutElse
+ syn region cCppOutWrapper start="^\s*\(%:\|#\)\s*if\s\+0\+\s*\($\|//\|/\*\|&\)" end=".\@=\|$" contains=cCppOutIf,cCppOutElse fold
syn region cCppOutIf contained start="0\+" matchgroup=cCppOutWrapper end="^\s*\(%:\|#\)\s*endif\>" contains=cCppOutIf2,cCppOutElse
if !exists("c_no_if0_fold")
syn region cCppOutIf2 contained matchgroup=cCppOutWrapper start="0\+" end="^\s*\(%:\|#\)\s*\(else\>\|elif\s\+\(0\+\s*\($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1 contains=cSpaceError,cCppOutSkip
@@ -284,7 +284,7 @@
syn region cCppOutIf2 contained matchgroup=cCppOutWrapper start="0\+" end="^\s*\(%:\|#\)\s*\(else\>\|elif\s\+\(0\+\s*\($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1 contains=cSpaceError,cCppOutSkip fold
endif
syn region cCppOutElse contained matchgroup=cCppOutWrapper start="^\s*\(%:\|#\)\s*\(else\|elif\)" end="^\s*\(%:\|#\)\s*endif\>"me=s-1 contains=TOP,cPreCondit
- syn region cCppInWrapper start="^\s*\(%:\|#\)\s*if\s\+0*[1-9]\d*\s*\($\|//\|/\*\||\)" end=".\@=\|$" contains=cCppInIf,cCppInElse
+ syn region cCppInWrapper start="^\s*\(%:\|#\)\s*if\s\+0*[1-9]\d*\s*\($\|//\|/\*\||\)" end=".\@=\|$" contains=cCppInIf,cCppInElse fold
syn region cCppInIf contained matchgroup=cCppInWrapper start="\d\+" end="^\s*\(%:\|#\)\s*endif\>" contains=TOP,cPreCondit
if !exists("c_no_if0_fold")
syn region cCppInElse contained start="^\s*\(%:\|#\)\s*\(else\>\|elif\s\+\(0*[1-9]\d*\s*\($\|//\|/\*\||\)\)\@!\)" end=".\@=\|$" containedin=cCppInIf contains=cCppInElse2 fold