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| author | Strake <devnull@localhost> | 2003-06-08 10:09:05 -0500 |
|---|---|---|
| committer | Strake <devnull@localhost> | 2003-06-08 10:09:05 -0500 |
| commit | 7b7b284ce4c1bd53d442927d9a570fcf84e0187c (patch) | |
| tree | ec3868ffee17ad581b430773a3deef5a91ef34ef /toys/pending/grep.c | |
| parent | f97cc9ff9768b746c26c4989a632cc3891e80d76 (diff) | |
| download | toybox-7b7b284ce4c1bd53d442927d9a570fcf84e0187c.tar.gz | |
grep: add -w flag
Diffstat (limited to 'toys/pending/grep.c')
| -rw-r--r-- | toys/pending/grep.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/toys/pending/grep.c b/toys/pending/grep.c index 5b614829..fad894f0 100644 --- a/toys/pending/grep.c +++ b/toys/pending/grep.c @@ -5,13 +5,13 @@ * See http://pubs.opengroup.org/onlinepubs/9699919799/utilities/ * See http://refspecs.linuxfoundation.org/LSB_4.1.0/LSB-Core-generic/LSB-Core-generic/cmdbehav.html -USE_GREP(NEWTOY(grep, "EFHahinosvclqe*f*m#", TOYFLAG_BIN)) +USE_GREP(NEWTOY(grep, "EFHahinosvwclqe*f*m#", TOYFLAG_BIN)) config GREP bool "grep" default n help - usage: grep [-clq] [-EFHhinosv] (-e RE | -f REfile | RE) [file...] + usage: grep [-clq] [-EFHhinosvw] (-e RE | -f REfile | RE) [file...] modes: default: print lines from each file what match regular expression RE. @@ -29,6 +29,7 @@ config GREP -o: print only matching part -s: keep silent on error -v: invert match + -w: match full word only */ #define FOR_grep @@ -48,7 +49,7 @@ static void do_grep (int fd, char *name) { for (;;) { char *x, *y; - regmatch_t match; + regmatch_t matches[3]; int atBOL = 1; x = get_rawline (fd, 0, '\n'); @@ -56,7 +57,7 @@ static void do_grep (int fd, char *name) { y = x; n++; /* start at 1 */ - while (regexec (&re, y, 1, &match, atBOL ? 0 : REG_NOTBOL) == 0) { + while (regexec (&re, y, 3, matches, atBOL ? 0 : REG_NOTBOL) == 0) { if (atBOL) nMatch++; toys.exitval = 0; atBOL = 0; @@ -74,8 +75,8 @@ static void do_grep (int fd, char *name) { if ( (toys.optflags & FLAG_n)) printf ("%d:", n); if (!(toys.optflags & FLAG_o)) fputs (x, stdout); else { - y += match.rm_so; - printf ("%.*s\n", match.rm_eo - match.rm_so, y++); + y += matches[2].rm_so; + printf ("%.*s\n", matches[2].rm_eo - matches[2].rm_so, y++); } } if (!(toys.optflags & FLAG_o)) break; @@ -141,6 +142,8 @@ void buildRE (void) { toys.optc--; toys.optargs++; } + TT.re_xs = xmsprintf (toys.optflags & FLAG_w ? "(^|[^_[:alnum:]])(%s)($|[^_[:alnum:]])" : "()(%s)()", TT.re_xs); + if (regcomp (&re, TT.re_xs, (toys.optflags & (FLAG_E | FLAG_F) ? REG_EXTENDED : 0) | (toys.optflags & FLAG_i ? REG_ICASE : 0)) != 0) { |