Function pointer for a regular expression matching callback function. When set, a callback function will be called periodically during matching operations. If the call back function returns FALSE, the matching operation will be terminated early.
Note: the callback function must not call other functions on this URegularExpression.
|context ||context pointer. The callback function will be invoked with the context specified at the time that uregex_setMatchCallback() is called. |
|steps ||the accumulated processing time, in match steps, for this matching operation. |
- TRUE to continue the matching operation. FALSE to terminate the matching operation. ICU 4.0