我寫了一個腳本來grep C文件並顯示C函數名稱和簽名以及結果。 基於ctags。
#!/bin/bash
#
# grep_c_code
#
# Grep C files and print the results along with the function name and signature.
# Requires: ctags, gawk, sed, bash, and you probably want grep too.
#
# Written by David Stav, December 19 2012.
#
# Released to the public domain.
#
if [ $# -lt 2 ]; then
echo "Usage: $0 <grep_cmd> <files/dirs...>" >&2
echo "" >&2
echo "Example:" >&2
echo " $0 'grep --color=always -n -e \"PATTERN\"' file1 file2 dir1 dir2 | less -R" >&2
exit 1
fi
GREP_CMD="$1"
shift
GAWK_SCRIPT="`
sed -n -e '/^##### START of gawk script #####$/,/^##### END of gawk script #####$/p' \"$0\" | \
sed -n -e '2,$ { $ D; p}'
`"
ctags -f - -R --sort=no -n --fields=+afikKmsSzt --extra=+fq "[email protected]" | \
gawk "$GAWK_SCRIPT" "$GREP_CMD" | \
bash
exit 0
##### START of gawk script #####
function parse_line(a)
{
a["tagname"] = $1;
a["filename"] = $2;
a["line_number"] = gensub(/^([0-9]+).*$/, "\\1", 1, $3);
if (a["line_number"] == $3)
{
a["line_number"] = "0";
}
a["kind"] = gensub(/^.*\tkind:([^\t]+).*$/, "\\1", 1, $0);
if (a["kind"] == $0)
{
a["kind"] = "unknown kind";
}
a["signature"] = gensub(/^.*\tsignature:(.*)$/, "\\1", 1, $0);
if (a["signature"] == $0)
{
a["signature"] = "";
}
}
function grep_section(a, next_line_number)
{
printf("\n");
printf("\n");
printf("\n");
printf("cat '%s' | \\\n", a["filename"]);
printf("sed -n -e '%s,%sp' | \\\n", a["line_number"], next_line_number);
printf("%s | \\\n", grep_cmd);
printf("sed -e '1 i \\\n");
printf("\\n\\n\\n--\\\n");
printf("[%s:%s]\\\n", a["filename"], a["line_number"]);
printf("<%s> %s%s\\\n", a["kind"], a["tagname"], a["signature"]);
printf("'\n");
}
BEGIN \
{
FS = "\t";
grep_cmd = ARGV[1];
ARGV[1] = ""
}
!/^!/ \
{
parse_line(next_line);
if (a["line_number"])
{
next_line_number = next_line["line_number"] - 1;
grep_section(a, next_line_number);
delete a;
}
for (key in next_line)
{
a[key] = next_line[key];
}
}
END \
{
if (a["line_number"])
{
next_line_number = "$";
grep_section(a, next_line_number);
}
}
##### END of gawk script #####
享受。 :)
你可以grep你的模式'''函數簽名。會有一些額外的噪音,但你會得到你想要的。 – 2011-05-26 05:49:27
對於我所尋找的,匹配函數簽名的正則表達式不一定要比差異使用的更好 - 即使是'^ \ w。* \('似乎做得很好。但是,將它應用到「真實」匹配的上下文中會產生很多額外的噪音 - 我在當前項目的一個子目錄中有超過1300個匹配項。 – 2011-05-26 06:20:50
這是我正在考慮的一個特性2.x. – 2011-06-07 14:07:18