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Diffstat (limited to 'pod/perlglossary.pod')
| -rw-r--r-- | pod/perlglossary.pod | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/pod/perlglossary.pod b/pod/perlglossary.pod index 858f24b12c..41dc412b57 100644 --- a/pod/perlglossary.pod +++ b/pod/perlglossary.pod @@ -234,13 +234,14 @@ some of its high-level ideas. =item backreference A substring L<captured|/capturing> by a subpattern within -unadorned parentheses in a L</regex>, also referred to as a capture group. -Backslashed decimal numbers -(C<\1>, C<\2>, etc.) later in the same pattern refer back to the -corresponding subpattern in the current match. Outside the pattern, +unadorned parentheses in a L</regex>, also referred to as a capture group. The +sequences (C<\g1>, C<\g2>, etc.) later in the same pattern refer back to +the corresponding subpattern in the current match. Outside the pattern, the numbered variables (C<$1>, C<$2>, etc.) continue to refer to these same values, as long as the pattern was the last successful match of -the current dynamic scope. +the current dynamic scope. C<\g{-1}> can be used to refer to a group by +relative rather than absolute position; and groups can be also be named, and +referred to later by name rather than number. See L<perlre/Capture Buffers>. =item backtracking |