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trycatch 2.0

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catch커맨드의 개량 패키지입니다.

Tcl exception handling

The Tcl "error" and "catch" commands support reasonably robust exception handling in Tcl...but writing complicated constructions using "catch" is annoying. The trycatch package implements a new control structure, "try...catch", that provides a level of sweetener on top of "catch".

Version 2.0 adds two new forms, "try {...}" and "try {...} finally {...}", and two commands, "throw" and "onerr", to improve handling of Tcl error codes.