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Import Tcl-code 8.6.8

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This commit is contained in:
Cheryl Sabella
2018-02-22 14:28:00 -05:00
parent 261a0e7c44
commit cc7c413b4f
509 changed files with 18473 additions and 18499 deletions
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15
generic/tclRegexp.c
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@@ -502,10 +502,17 @@ Tcl_RegExpMatchObj(
{
Tcl_RegExp re;
re = Tcl_GetRegExpFromObj(interp, patternObj,
TCL_REG_ADVANCED | TCL_REG_NOSUB);
if (re == NULL) {
return -1;
/*
* For performance reasons, first try compiling the RE without support for
* subexpressions. On failure, try again without TCL_REG_NOSUB in case the
* RE has backreferences in it. Closely related to [Bug 1366683]. If this
* still fails, an error message will be left in the interpreter.
*/
if (!(re = Tcl_GetRegExpFromObj(interp, patternObj,
TCL_REG_ADVANCED | TCL_REG_NOSUB))
&& !(re = Tcl_GetRegExpFromObj(interp, patternObj, TCL_REG_ADVANCED))) {
return -1;
}
return Tcl_RegExpExecObj(interp, re, textObj, 0 /* offset */,
0 /* nmatches */, 0 /* flags */);