diff options
Diffstat (limited to 'Src/Modules/pcre.c')
| -rw-r--r-- | Src/Modules/pcre.c | 57 |
1 files changed, 48 insertions, 9 deletions
diff --git a/Src/Modules/pcre.c b/Src/Modules/pcre.c index 4f8daff80..08205d144 100644 --- a/Src/Modules/pcre.c +++ b/Src/Modules/pcre.c @@ -82,6 +82,7 @@ bin_pcre_compile(char *nam, char **args, Options ops, UNUSED(int func)) if(OPT_ISSET(ops,'i')) pcre_opts |= PCRE_CASELESS; if(OPT_ISSET(ops,'m')) pcre_opts |= PCRE_MULTILINE; if(OPT_ISSET(ops,'x')) pcre_opts |= PCRE_EXTENDED; + if(OPT_ISSET(ops,'s')) pcre_opts |= PCRE_DOTALL; if (zpcre_utf8_enabled()) pcre_opts |= PCRE_UTF8; @@ -137,9 +138,11 @@ bin_pcre_study(char *nam, UNUSED(char **args), UNUSED(Options ops), UNUSED(int f /**/ static int -zpcre_get_substrings(char *arg, int *ovec, int ret, char *matchvar, char *substravar, int matchedinarr) +zpcre_get_substrings(char *arg, int *ovec, int ret, char *matchvar, char *substravar, + int want_offset_pair, int matchedinarr) { char **captures, *match_all, **matches; + char offset_all[50]; int capture_start = 1; if (matchedinarr) @@ -148,9 +151,14 @@ zpcre_get_substrings(char *arg, int *ovec, int ret, char *matchvar, char *substr matchvar = "MATCH"; if (substravar == NULL) substravar = "match"; - + /* captures[0] will be entire matched string, [1] first substring */ - if(!pcre_get_substring_list(arg, ovec, ret, (const char ***)&captures)) { + if (!pcre_get_substring_list(arg, ovec, ret, (const char ***)&captures)) { + /* Set to the offsets of the complete match */ + if (want_offset_pair) { + sprintf(offset_all, "%d %d", ovec[0], ovec[1]); + setsparam("ZPCRE_OP", ztrdup(offset_all)); + } match_all = ztrdup(captures[0]); setsparam(matchvar, match_all); matches = zarrdup(&captures[capture_start]); @@ -163,12 +171,32 @@ zpcre_get_substrings(char *arg, int *ovec, int ret, char *matchvar, char *substr /**/ static int +getposint(char *instr, char *nam) +{ + char *eptr; + int ret; + + ret = (int)zstrtol(instr, &eptr, 10); + if (*eptr || ret < 0) { + zwarnnam(nam, "integer expected: %s", instr); + return -1; + } + + return ret; +} + +/**/ +static int bin_pcre_match(char *nam, char **args, Options ops, UNUSED(int func)) { int ret, capcount, *ovec, ovecsize, c; char *matched_portion = NULL; char *receptacle = NULL; int return_value = 1; + /* The subject length and offset start are both int values in pcre_exec */ + int subject_len; + int offset_start = 0; + int want_offset_pair = 0; if (pcre_pattern == NULL) { zwarnnam(nam, "no pattern has been compiled"); @@ -181,6 +209,12 @@ bin_pcre_match(char *nam, char **args, Options ops, UNUSED(int func)) if(OPT_HASARG(ops,c='v')) { matched_portion = OPT_ARG(ops,c); } + if(OPT_HASARG(ops,c='n')) { /* The offset position to start the search, in bytes. */ + offset_start = getposint(OPT_ARG(ops,c), nam); + } + /* For the entire match, 'Return' the offset byte positions instead of the matched string */ + if(OPT_ISSET(ops,'b')) want_offset_pair = 1; + if(!*args) { zwarnnam(nam, "not enough arguments"); } @@ -194,12 +228,17 @@ bin_pcre_match(char *nam, char **args, Options ops, UNUSED(int func)) ovecsize = (capcount+1)*3; ovec = zalloc(ovecsize*sizeof(int)); - ret = pcre_exec(pcre_pattern, pcre_hints, *args, strlen(*args), 0, 0, ovec, ovecsize); - + subject_len = (int)strlen(*args); + + if (offset_start < 0 || offset_start >= subject_len) + ret = PCRE_ERROR_NOMATCH; + else + ret = pcre_exec(pcre_pattern, pcre_hints, *args, subject_len, offset_start, 0, ovec, ovecsize); + if (ret==0) return_value = 0; else if (ret==PCRE_ERROR_NOMATCH) /* no match */; else if (ret>0) { - zpcre_get_substrings(*args, ovec, ret, matched_portion, receptacle, 0); + zpcre_get_substrings(*args, ovec, ret, matched_portion, receptacle, want_offset_pair, 0); return_value = 0; } else { @@ -258,7 +297,7 @@ cond_pcre_match(char **a, int id) break; } else if (r>0) { - zpcre_get_substrings(lhstr, ov, r, NULL, avar, isset(BASHREMATCH)); + zpcre_get_substrings(lhstr, ov, r, NULL, avar, 0, isset(BASHREMATCH)); return_value = 1; break; } @@ -289,8 +328,8 @@ static struct conddef cotab[] = { #endif /* !(HAVE_PCRE_COMPILE && HAVE_PCRE_EXEC) */ static struct builtin bintab[] = { - BUILTIN("pcre_compile", 0, bin_pcre_compile, 1, 1, 0, "aimx", NULL), - BUILTIN("pcre_match", 0, bin_pcre_match, 1, 1, 0, "a:v:", NULL), + BUILTIN("pcre_compile", 0, bin_pcre_compile, 1, 1, 0, "aimxs", NULL), + BUILTIN("pcre_match", 0, bin_pcre_match, 1, 1, 0, "a:v:n:b", NULL), BUILTIN("pcre_study", 0, bin_pcre_study, 0, 0, 0, NULL, NULL) }; |