Christian Brabandt wrote:
> On Di, 21 Mai 2013, Christian Brabandt wrote:
>
> > And also not supported yet are \_[...]
> > collections.
>
> BTW: This patch enables the \_[...] collections.
>
> diff --git a/src/regexp_nfa.c b/src/regexp_nfa.c
> --- a/src/regexp_nfa.c
> +++ b/src/regexp_nfa.c
> @@ -679,9 +679,7 @@
>
> /* "\_[" is collection plus newline */
> if (c == '[')
> - /* TODO: make this work
> - * goto collection; */
> - return FAIL;
> + goto collection;
>
> /* "\_x" is character class plus newline */
> /*FALLTHROUGH*/
> @@ -891,7 +889,7 @@
> }
> break;
>
> -/* collection: */
> +collection:
> case Magic('['):
> /*
> * Glue is emitted between several atoms from the [].
>
That just enables it, doesn't fix the problems caused.
I believe the pattern that failed was \_[0-9]\?\>.
Somehow the \_[] eats the line break and then \> fails to match.
Discovered using the dnsmasq syntax, especially the DnsmasqIPv4
match. Using syntax files as a wild test for regexp works quite well.
But it does not find everything (and I still have too few files to test
with).
Here are some more patterns that still fail:
Multi-byte problem? Marc Weber
echo matchlist('1', '\%#=1\o{\?Ä\Z')
echo matchlist('1', '\%#=2\o{\?Ä\Z')
Difference in matching this pattern: (Marc Weber)
echo matchlist("t", '\%#=1ú\Z')
echo matchlist("t", '\%#=2ú\Z')
Difference in matching this pattern:
echo matchlist('google', '\%#=1\<go*\|go')
echo matchlist('google', '\%#=2\<go*\|go')
Difference in matching this pattern: (Marc Weber)
echo matchlist("\na", '\%#=1\_F')
echo matchlist("\na", '\%#=0\_F')
echo matchlist("\na", '\%#=2\_F')
--
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everything you didn't get and don't want.
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