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[PATCH] fixupdiff: escape ^ caret

  • 1.  [PATCH] fixupdiff: escape ^ caret

    Posted 04-19-2022 16:30
    Since commit:

    commit 1e30753d53d222fbe955f0643583d756105d557e
    Author: Jan Kiszka <jan.kiszka@siemens.com>
    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 <jan.kiszka@siemens.com>
    Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

    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 <mst@redhat.com>
    ---
    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/%DIFDELCMD\s+< //;
    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 {
    --
    MST