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52405, 52502: add empty elements to $match for optional captures that don't match

This commit is contained in:
Oliver Kiddle 2024-01-26 07:33:38 +01:00
parent 742049a4cb
commit 698af7bc13
3 changed files with 12 additions and 1 deletions
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3
ChangeLog
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@ -1,5 +1,8 @@
2024-01-26 Oliver Kiddle <opk@zsh.org>
* 52405, 52502: Src/Modules/pcre.c, Test/V07pcre.ztst:
add empty elements to $match for optional captures that don't match
* github #110: opensauce04: Completion/Redhat/Command/_dnf:
Fix incorrect completion for `dnf --showduplicates`

5
Src/Modules/pcre.c
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@ -391,6 +391,8 @@ bin_pcre_match(char *nam, char **args, Options ops, UNUSED(int func))
pcre_mdata = pcre2_match_data_create_from_pattern(pcre_pattern, NULL);
ret = pcre2_match(pcre_pattern, (PCRE2_SPTR) plaintext, subject_len,
offset_start, 0, pcre_mdata, mcontext);
if (ret > 0)
ret = pcre2_get_ovector_count(pcre_mdata);
}
if (ret==0) return_value = 0;
@ -479,7 +481,8 @@ cond_pcre_match(char **a, int id)
break;
}
else if (r>0) {
zpcre_get_substrings(pcre_pat, lhstr_plain, pcre_mdata, r, svar, avar,
uint32_t ovec_count = pcre2_get_ovector_count(pcre_mdata);
zpcre_get_substrings(pcre_pat, lhstr_plain, pcre_mdata, ovec_count, svar, avar,
".pcre.match", 0, isset(BASHREMATCH), !isset(BASHREMATCH));
return_value = 1;
break;

5
Test/V07pcre.ztst
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@ -108,6 +108,11 @@
>0 xo→t →t
>0 Xo→t →t
[[ foo =~ (pre)?f(o*)(opt(i)onal)?(y)* ]]
typeset -p match
0:Empty string for optional captures that don't match
>typeset -g -a match=( '' oo '' '' '' )
string="The following zip codes: 78884 90210 99513"
pcre_compile -m "\d{5}"
pcre_match -b -- $string && print "$MATCH; ZPCRE_OP: $ZPCRE_OP"