diff options
Diffstat (limited to 'grab.c')
| -rw-r--r-- | grab.c | 53 |
1 files changed, 33 insertions, 20 deletions
@@ -50,22 +50,22 @@ struct sv { }; typedef unsigned char uchar; -typedef void (*cmd_func)(struct sv, struct ops, size_t); +typedef void (*cmd_func)(struct sv, struct ops, size_t, const char *); -static void cmdg(struct sv, struct ops, size_t); -static void cmdx(struct sv, struct ops, size_t); -static void cmdy(struct sv, struct ops, size_t); +static void cmdg(struct sv, struct ops, size_t, const char *); +static void cmdx(struct sv, struct ops, size_t, const char *); +static void cmdy(struct sv, struct ops, size_t, const char *); static void grab(struct ops, FILE *, const char *); -static void putsv(struct sv); +static void putm(struct sv, const char *); static regex_t mkregex(char *, size_t); static struct ops comppat(char *); static bool xisspace(char); static char *xstrchrnul(const char *, char); -static int rv = EXIT_SUCCESS; -static bool nflag, zflag; +static int filecnt, rv; +static bool color, nflag, zflag; static const cmd_func op_table[UCHAR_MAX] = { ['g'] = cmdg, @@ -124,6 +124,13 @@ main(int argc, char **argv) argc -= optind; argv += optind; + filecnt = argc - 1; + + if (isatty(STDOUT_FILENO) == 1) { + const char *s; + if (!(s = getenv("NO_COLOR")) || !*s) + color = (s = getenv("TERM")) && strcmp(s, "dumb"); + } ops = comppat(argv[0]); if (argc == 1) @@ -209,14 +216,14 @@ grab(struct ops ops, FILE *stream, const char *filename) .p = chars.buf, .len = chars.len, }; - op_table[(uchar)ops.buf[0].c](sv, ops, 0); + op_table[(uchar)ops.buf[0].c](sv, ops, 0, filename); } free(chars.buf); } void -cmdg(struct sv sv, struct ops ops, size_t i) +cmdg(struct sv sv, struct ops ops, size_t i, const char *filename) { int r; regmatch_t pm = { @@ -230,13 +237,13 @@ cmdg(struct sv sv, struct ops ops, size_t i) return; if (i + 1 == ops.len) - putsv(sv); + putm(sv, filename); else - op_table[(uchar)ops.buf[i + 1].c](sv, ops, i + 1); + op_table[(uchar)ops.buf[i + 1].c](sv, ops, i + 1, filename); } void -cmdx(struct sv sv, struct ops ops, size_t i) +cmdx(struct sv sv, struct ops ops, size_t i, const char *filename) { regmatch_t pm = { .rm_so = 0, @@ -251,9 +258,9 @@ cmdx(struct sv sv, struct ops ops, size_t i) break; nsv = (struct sv){.p = sv.p + pm.rm_so, .len = pm.rm_eo - pm.rm_so}; if (i + 1 == ops.len) - putsv(nsv); + putm(nsv, filename); else - op_table[(uchar)ops.buf[i + 1].c](nsv, ops, i + 1); + op_table[(uchar)ops.buf[i + 1].c](nsv, ops, i + 1, filename); if (pm.rm_so == pm.rm_eo) pm.rm_eo++; @@ -265,7 +272,7 @@ cmdx(struct sv sv, struct ops ops, size_t i) } void -cmdy(struct sv sv, struct ops ops, size_t i) +cmdy(struct sv sv, struct ops ops, size_t i, const char *filename) { regmatch_t pm = { .rm_so = 0, @@ -289,9 +296,9 @@ cmdy(struct sv sv, struct ops ops, size_t i) .len = pm.rm_so - prev.rm_eo, }; if (i + 1 == ops.len) - putsv(nsv); + putm(nsv, filename); else - op_table[(uchar)ops.buf[i + 1].c](nsv, ops, i + 1); + op_table[(uchar)ops.buf[i + 1].c](nsv, ops, i + 1, filename); } prev = pm; @@ -309,15 +316,21 @@ cmdy(struct sv sv, struct ops ops, size_t i) .len = pm.rm_eo - pm.rm_so, }; if (i + 1 == ops.len) - putsv(nsv); + putm(nsv, filename); else - op_table[(uchar)ops.buf[i + 1].c](nsv, ops, i + 1); + op_table[(uchar)ops.buf[i + 1].c](nsv, ops, i + 1, filename); } } void -putsv(struct sv sv) +putm(struct sv sv, const char *filename) { + if (filecnt > 1) { + if (color) + printf("\33[35m%s\33[36m:\33[0m", filename); + else + printf("%s:", filename); + } fwrite(sv.p, 1, sv.len, stdout); putchar(zflag ? '\0' : '\n'); } |