[PATCH] fixupdiff: escape ^ caret

Since commit:  commit 1e30753d53d222fbe955f0643583d756105d557e Author: Jan Kiszka <>
Date:
Fri Oct 11 13:43:41 2019 +0200
Fix ^= in example code
Trying to escaping ^ here only leaves the backslash in the output.
Signed-off-by: Jan Kiszka <>
Signed-off-by: Michael S. Tsirkin <>  we have plain ^ inside listing. Escape it with  but only if not already escaped (as output of diff with old source will be).  Signed-off-by: Michael S. Tsirkin <> ---  fixupdiff.pl
4 ++++  1 file changed, 4 insertions(+)  diff --git a/fixupdiff.pl b/fixupdiff.pl index f50cf26..e7d3a0f 100644 --- a/fixupdiff.pl +++ b/fixupdiff.pl @@ -35,6 +35,10 @@ while (<>) {  		$line =~ s/%DIFDELCMDs+< //;  		if (not $line =~ m/\(?:begin end){lstlisting}/) {  			$line =~ s/([#&{} ])/\$1/g; +			#be careful: do not escape ^ +			$line =~ s/([^\])(^)/$1\$2/g; +			#also at beginning of line +			$line =~ s/^(^)/\$1/g;  			if ($add) {  				$line =~ s/(.*)/$\DIFdel{$1}$/;  			} else {

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MST