diff options
Diffstat (limited to 'erts/emulator/pcre/pcre-8.33_1370.diff')
| -rw-r--r-- | erts/emulator/pcre/pcre-8.33_1370.diff | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/erts/emulator/pcre/pcre-8.33_1370.diff b/erts/emulator/pcre/pcre-8.33_1370.diff new file mode 100644 index 0000000000..d62398985d --- /dev/null +++ b/erts/emulator/pcre/pcre-8.33_1370.diff @@ -0,0 +1,60 @@ +--- code/trunk/pcre_exec.c 2013/07/02 18:37:36 1346 ++++ code/trunk/pcre_exec.c 2013/07/26 10:03:38 1350 +@@ -5637,7 +5637,7 @@ + } + } + +- /* Match extended Unicode sequences. We will get here only if the ++ /* Match extended Unicode grapheme clusters. We will get here only if the + support is in the binary; otherwise a compile-time error occurs. */ + + else if (ctype == OP_EXTUNI) +@@ -5670,21 +5670,41 @@ + /* eptr is now past the end of the maximum run */ + + if (possessive) continue; /* No backtracking */ ++ + for(;;) + { +- if (eptr == pp) goto TAIL_RECURSE; ++ int lgb, rgb; ++ PCRE_PUCHAR fptr; ++ ++ if (eptr == pp) goto TAIL_RECURSE; /* At start of char run */ + RMATCH(eptr, ecode, offset_top, md, eptrb, RM45); + if (rrc != MATCH_NOMATCH) RRETURN(rrc); ++ ++ /* Backtracking over an extended grapheme cluster involves inspecting ++ the previous two characters (if present) to see if a break is ++ permitted between them. */ ++ + eptr--; +- for (;;) /* Move back over one extended */ ++ if (!utf) c = *eptr; else ++ { ++ BACKCHAR(eptr); ++ GETCHAR(c, eptr); ++ } ++ rgb = UCD_GRAPHBREAK(c); ++ ++ for (;;) + { +- if (!utf) c = *eptr; else ++ if (eptr == pp) goto TAIL_RECURSE; /* At start of char run */ ++ fptr = eptr - 1; ++ if (!utf) c = *fptr; else + { +- BACKCHAR(eptr); +- GETCHAR(c, eptr); ++ BACKCHAR(fptr); ++ GETCHAR(c, fptr); + } +- if (UCD_CATEGORY(c) != ucp_M) break; +- eptr--; ++ lgb = UCD_GRAPHBREAK(c); ++ if ((PRIV(ucp_gbtable)[lgb] & (1 << rgb)) == 0) break; ++ eptr = fptr; ++ rgb = lgb; + } + } + } |