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| author | Aaron Crane <arc@cpan.org> | 2014-09-24 18:29:36 +0100 |
|---|---|---|
| committer | Aaron Crane <arc@cpan.org> | 2014-09-29 18:48:08 +0100 |
| commit | 62e6ef3356e0e6acf57ba63e809b4ccbd3a17981 (patch) | |
| tree | b7fd79e1c2a3c9493dc444edd5fe19723d9b3977 /pod/perldebguts.pod | |
| parent | d56b1f57fd32d77a6c2b437d81c206ad3905e15a (diff) | |
| download | perl-62e6ef3356e0e6acf57ba63e809b4ccbd3a17981.tar.gz | |
Eliminate unused BACK regnode
Diffstat (limited to 'pod/perldebguts.pod')
| -rw-r--r-- | pod/perldebguts.pod | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/pod/perldebguts.pod b/pod/perldebguts.pod index 59d27b094f..8b90342453 100644 --- a/pod/perldebguts.pod +++ b/pod/perldebguts.pod @@ -623,13 +623,6 @@ will be lost. # BRANCH node Match this alternative, or the next... - # Back pointer - - # BACK Normal "next" pointers all implicitly point forward; - # BACK exists to make loop structures possible. - # not used - BACK no Match "", "next" ptr points backward. - # Literals EXACT str Match this string (preceded by length). @@ -659,7 +652,7 @@ will be lost. # Loops # STAR,PLUS '?', and complex '*' and '+', are implemented as - # circular BRANCH structures using BACK. Simple cases + # circular BRANCH structures. Simple cases # (one character per match) are implemented with STAR # and PLUS for speed and to minimize recursive plunges. # |