diff options
author | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-10-16 07:35:51 +0000 |
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committer | usa <usa@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2014-10-16 07:35:51 +0000 |
commit | 7e344b0b7b877fcf203ab29f56e417993fb4cb11 (patch) | |
tree | e300c40e22bbe464deddc79dc51dfef441291c1a /regcomp.c | |
parent | 4110e5fa6213995e6c8561527e4c658e406405e9 (diff) |
* regcomp.c, regexec.c: Optimization should be disabled not only for
/(?<=x).*/ but also for /(?!x).*/.
(merge r47598 partially. [Bug #9728])
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_0_0@47976 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'regcomp.c')
-rw-r--r-- | regcomp.c | 10 |
1 files changed, 7 insertions, 3 deletions
@@ -4495,6 +4495,9 @@ concat_opt_anc_info(OptAncInfo* to, OptAncInfo* left, OptAncInfo* right, if (right_len == 0) { to->right_anchor |= left->right_anchor; } + else { + to->right_anchor |= (left->right_anchor & ANCHOR_PREC_READ_NOT); + } } static int @@ -5068,7 +5071,8 @@ optimize_node_left(Node* node, NodeOptInfo* opt, OptEnv* env) case ANCHOR_END_BUF: case ANCHOR_SEMI_END_BUF: case ANCHOR_END_LINE: - case ANCHOR_LOOK_BEHIND: /* just for (?<=x).* */ + case ANCHOR_LOOK_BEHIND: /* just for (?<=x).* */ + case ANCHOR_PREC_READ_NOT: /* just for (?!x).* */ add_opt_anc_info(&opt->anc, NANCHOR(node)->type); break; @@ -5091,7 +5095,6 @@ optimize_node_left(Node* node, NodeOptInfo* opt, OptEnv* env) } break; - case ANCHOR_PREC_READ_NOT: case ANCHOR_LOOK_BEHIND_NOT: break; } @@ -5357,7 +5360,8 @@ set_optimize_info_from_tree(Node* node, regex_t* reg, ScanEnv* scan_env) ANCHOR_BEGIN_POSITION | ANCHOR_ANYCHAR_STAR | ANCHOR_ANYCHAR_STAR_ML | ANCHOR_LOOK_BEHIND); - reg->anchor |= opt.anc.right_anchor & (ANCHOR_END_BUF | ANCHOR_SEMI_END_BUF); + reg->anchor |= opt.anc.right_anchor & (ANCHOR_END_BUF | ANCHOR_SEMI_END_BUF | + ANCHOR_PREC_READ_NOT); if (reg->anchor & (ANCHOR_END_BUF | ANCHOR_SEMI_END_BUF)) { reg->anchor_dmin = opt.len.min; |