| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT LIBRARY COMPONENTS -- |
| -- -- |
| -- G N A T . R E G P A T -- |
| -- -- |
| -- S p e c -- |
| -- -- |
| -- Copyright (C) 1986 by University of Toronto. -- |
| -- Copyright (C) 1996-2010, AdaCore -- |
| -- -- |
| -- GNAT is free software; you can redistribute it and/or modify it under -- |
| -- terms of the GNU General Public License as published by the Free Soft- -- |
| -- ware Foundation; either version 3, or (at your option) any later ver- -- |
| -- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- |
| -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- |
| -- or FITNESS FOR A PARTICULAR PURPOSE. -- |
| -- -- |
| -- As a special exception under Section 7 of GPL version 3, you are granted -- |
| -- additional permissions described in the GCC Runtime Library Exception, -- |
| -- version 3.1, as published by the Free Software Foundation. -- |
| -- -- |
| -- You should have received a copy of the GNU General Public License and -- |
| -- a copy of the GCC Runtime Library Exception along with this program; -- |
| -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- |
| -- <http://www.gnu.org/licenses/>. -- |
| -- -- |
| -- GNAT was originally developed by the GNAT team at New York University. -- |
| -- Extensive contributions were provided by Ada Core Technologies Inc. -- |
| -- -- |
| ------------------------------------------------------------------------------ |
| |
| -- This package implements roughly the same set of regular expressions as |
| -- are available in the Perl or Python programming languages. |
| |
| -- This is an extension of the original V7 style regular expression library |
| -- written in C by Henry Spencer. Apart from the translation to Ada, the |
| -- interface has been considerably changed to use the Ada String type |
| -- instead of C-style nul-terminated strings. |
| |
| -- See file s-regpat.ads for full documentation of the interface |
| |
| ------------------------------------------------------------ |
| -- Summary of Pattern Matching Packages in GNAT Hierarchy -- |
| ------------------------------------------------------------ |
| |
| -- There are three related packages that perform pattern matching functions. |
| -- the following is an outline of these packages, to help you determine |
| -- which is best for your needs. |
| |
| -- GNAT.Regexp (files g-regexp.ads/s-regexp.ads/s-regexp.adb) |
| -- This is a simple package providing Unix-style regular expression |
| -- matching with the restriction that it matches entire strings. It |
| -- is particularly useful for file name matching, and in particular |
| -- it provides "globbing patterns" that are useful in implementing |
| -- unix or DOS style wild card matching for file names. |
| |
| -- GNAT.Regpat (files g-regpat.ads/s-regpat.ads/s-regpat.adb) |
| -- This is a more complete implementation of Unix-style regular |
| -- expressions, copied from the Perl regular expression engine, |
| -- written originally in C by Henry Spencer. It is functionally the |
| -- same as that library. |
| |
| -- GNAT.Spitbol.Patterns (files g-spipat.ads/g-spipat.adb) |
| -- This is a completely general pattern matching package based on the |
| -- pattern language of SNOBOL4, as implemented in SPITBOL. The pattern |
| -- language is modeled on context free grammars, with context sensitive |
| -- extensions that provide full (type 0) computational capabilities. |
| |
| with System.Regpat; |
| |
| package GNAT.Regpat renames System.Regpat; |
