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authorGeorg Lukas2009-11-19 12:14:45 +0100
committerGeorg Lukas2009-11-19 12:14:45 +0100
commit56522ebe1387721d10196e835346257e7494abad (patch)
tree75e2d2c2148bf9aad54b361286957b033f13293e /filters
parentMerge branch 'stable' (diff)
downloadcgit-56522ebe1387721d10196e835346257e7494abad.tar.gz
cgit-56522ebe1387721d10196e835346257e7494abad.zip
syntax highlighting for all formats supported by "highlight"
The highlight tool can be given any of the supported file extensions
as its -S parameter. This patch replaces the case-switch by extracting
the extension from the supplied file name and passing it to highlight.
However, this requires a shell supporting the ${var##pattern} syntax,
like dash or bash.

Unknown extensions cause a fall-back to plain text using the --force
switch. Error messages are redirected to /dev/null.

A special case maps Makefile and Makefile.* to the "mk" extension.

The total overhead is reduced by calling "exec highlight". No forks are
needed during script execution.

Signed-off-by: Georg Lukas <georg@op-co.de>
Diffstat (limited to 'filters')
-rwxr-xr-xfilters/syntax-highlighting.sh29
1 files changed, 12 insertions, 17 deletions
diff --git a/filters/syntax-highlighting.sh b/filters/syntax-highlighting.sh index 999ad0c..6b1c576 100755 --- a/filters/syntax-highlighting.sh +++ b/filters/syntax-highlighting.sh
@@ -3,6 +3,10 @@
3# tree-view by refering to this file with the source-filter or repo.source- 3# tree-view by refering to this file with the source-filter or repo.source-
4# filter options in cgitrc. 4# filter options in cgitrc.
5# 5#
6# This script requires a shell supporting the ${var##pattern} syntax.
7# It is supported by at least dash and bash, however busybox environments
8# might have to use an external call to sed instead.
9#
6# Note: the highlight command (http://www.andre-simon.de/) uses css for syntax 10# Note: the highlight command (http://www.andre-simon.de/) uses css for syntax
7# highlighting, so you'll probably want something like the following included 11# highlighting, so you'll probably want something like the following included
8# in your css file (generated by highlight 2.4.8 and adapted for cgit): 12# in your css file (generated by highlight 2.4.8 and adapted for cgit):
@@ -20,20 +24,11 @@
20# table.blob .kwc { color:#000000; font-weight:bold; } 24# table.blob .kwc { color:#000000; font-weight:bold; }
21# table.blob .kwd { color:#010181; } 25# table.blob .kwd { color:#010181; }
22 26
23case "$1" in 27# store filename and extension in local vars
24 *.c) 28BASENAME="$1"
25 highlight -f -I -X -S c 29EXTENSION="${BASENAME##*.}"
26 ;; 30
27 *.h) 31# map Makefile and Makefile.* to .mk
28 highlight -f -I -X -S c 32[ "${BASENAME%%.*}" == "Makefile" ] && EXTENSION=mk
29 ;; 33
30 *.sh) 34exec highlight --force -f -I -X -S $EXTENSION 2>/dev/null
31 highlight -f -I -X -S sh
32 ;;
33 *.css)
34 highlight -f -I -X -S css
35 ;;
36 *)
37 highlight -f -I -X -S txt
38 ;;
39esac