parse-re

Arguments: string &key extended-mode

The several functions that accept quasi-Perl string representation for regular expressions (e.g. match-re) also accept parse tree syntax. parse-re is the function that translates the string representation into the tree representation. It is used internally as the first pass of compile-regexp, but occasionally is may be useful in application code.

The extended-mode keyword argument controls whether the parse begins in regular or extended mode. The default is nil. If true, it is as if the regexp string is prefaced with "(?x)".

See Regexp trees in regexp.htm for information on the tree syntax.

The actual home package of this symbol is the regexp package. It is also exported from (and documented with) the excl package.

See The new regexp2 module in regexp.htm for further information on this function and the regexp2 module.

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Documentation for Allegro CL version 7.0. This page is new in the 7.0 release.
Created 2005.9.20.