From 56522ebe1387721d10196e835346257e7494abad Mon Sep 17 00:00:00 2001
From: Georg Lukas <georg@op-co.de>
Date: Thu, 19 Nov 2009 12:14:45 +0100
Subject: 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>
---
filters/syntax-highlighting.sh | 29 ++++++++++++-----------------
1 file changed, 12 insertions(+), 17 deletions(-)
(limited to 'filters')
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 @@
# tree-view by refering to this file with the source-filter or repo.source-
# filter options in cgitrc.
#
+# This script requires a shell supporting the ${var##pattern} syntax.
+# It is supported by at least dash and bash, however busybox environments
+# might have to use an external call to sed instead.
+#
# Note: the highlight command (http://www.andre-simon.de/) uses css for syntax
# highlighting, so you'll probably want something like the following included
# in your css file (generated by highlight 2.4.8 and adapted for cgit):
@@ -20,20 +24,11 @@
# table.blob .kwc { color:#000000; font-weight:bold; }
# table.blob .kwd { color:#010181; }
-case "$1" in
- *.c)
- highlight -f -I -X -S c
- ;;
- *.h)
- highlight -f -I -X -S c
- ;;
- *.sh)
- highlight -f -I -X -S sh
- ;;
- *.css)
- highlight -f -I -X -S css
- ;;
- *)
- highlight -f -I -X -S txt
- ;;
-esac
+# store filename and extension in local vars
+BASENAME="$1"
+EXTENSION="${BASENAME##*.}"
+
+# map Makefile and Makefile.* to .mk
+[ "${BASENAME%%.*}" == "Makefile" ] && EXTENSION=mk
+
+exec highlight --force -f -I -X -S $EXTENSION 2>/dev/null
--
cgit 1.4.1-3-g733a5