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Diffstat (limited to 'doc/html/pcrecompat.html')
| -rw-r--r-- | doc/html/pcrecompat.html | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/doc/html/pcrecompat.html b/doc/html/pcrecompat.html index 3e62266..d95570e 100644 --- a/doc/html/pcrecompat.html +++ b/doc/html/pcrecompat.html @@ -128,7 +128,7 @@ the pattern /^(a(b)?)+$/ in Perl leaves $2 unset, but in PCRE it is set to "b". 14. PCRE's handling of duplicate subpattern numbers and duplicate subpattern names is not as general as Perl's. This is a consequence of the fact the PCRE works internally just with numbers, using an external table to translate -between numbers and names. In particular, a pattern such as (?|(?<a>A)|(?<b)B), +between numbers and names. In particular, a pattern such as (?|(?<a>A)|(?<b>B), where the two capturing parentheses have the same number but different names, is not supported, and causes an error at compile time. If it were allowed, it would not be possible to distinguish which parentheses matched, because both |