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authorGeorg Lukas <georg@op-co.de>2009-11-19 11:14:45 (UTC)
committer Georg Lukas <georg@op-co.de>2009-11-19 11:14:45 (UTC)
commit56522ebe1387721d10196e835346257e7494abad (patch) (unidiff)
tree75e2d2c2148bf9aad54b361286957b033f13293e
parente633ccf714eb423c4522924c3b611dac2e176c5e (diff)
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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 (more/less context) (ignore whitespace changes)
-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
@@ -1,11 +1,15 @@
1#!/bin/sh 1#!/bin/sh
2# This script can be used to implement syntax highlighting in the cgit 2# This script can be used to implement syntax highlighting in the cgit
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):
9# 13#
10# table.blob .num { color:#2928ff; } 14# table.blob .num { color:#2928ff; }
11# table.blob .esc { color:#ff00ff; } 15# table.blob .esc { color:#ff00ff; }
@@ -17,23 +21,14 @@
17# table.blob .sym { color:#000000; } 21# table.blob .sym { color:#000000; }
18# table.blob .kwa { color:#000000; font-weight:bold; } 22# table.blob .kwa { color:#000000; font-weight:bold; }
19# table.blob .kwb { color:#830000; } 23# table.blob .kwb { color:#830000; }
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