1------------------------------------------------------------------------------ 2-- -- 3-- GNAT LIBRARY COMPONENTS -- 4-- -- 5-- G N A T . R E G P A T -- 6-- -- 7-- S p e c -- 8-- -- 9-- Copyright (C) 1986 by University of Toronto. -- 10-- Copyright (C) 1996-2010, AdaCore -- 11-- -- 12-- GNAT is free software; you can redistribute it and/or modify it under -- 13-- terms of the GNU General Public License as published by the Free Soft- -- 14-- ware Foundation; either version 3, or (at your option) any later ver- -- 15-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- 16-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- 17-- or FITNESS FOR A PARTICULAR PURPOSE. -- 18-- -- 19-- As a special exception under Section 7 of GPL version 3, you are granted -- 20-- additional permissions described in the GCC Runtime Library Exception, -- 21-- version 3.1, as published by the Free Software Foundation. -- 22-- -- 23-- You should have received a copy of the GNU General Public License and -- 24-- a copy of the GCC Runtime Library Exception along with this program; -- 25-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -- 26-- <http://www.gnu.org/licenses/>. -- 27-- -- 28-- GNAT was originally developed by the GNAT team at New York University. -- 29-- Extensive contributions were provided by Ada Core Technologies Inc. -- 30-- -- 31------------------------------------------------------------------------------ 32 33-- This package implements roughly the same set of regular expressions as 34-- are available in the Perl or Python programming languages. 35 36-- This is an extension of the original V7 style regular expression library 37-- written in C by Henry Spencer. Apart from the translation to Ada, the 38-- interface has been considerably changed to use the Ada String type 39-- instead of C-style nul-terminated strings. 40 41-- See file s-regpat.ads for full documentation of the interface 42 43------------------------------------------------------------ 44-- Summary of Pattern Matching Packages in GNAT Hierarchy -- 45------------------------------------------------------------ 46 47-- There are three related packages that perform pattern matching functions. 48-- the following is an outline of these packages, to help you determine 49-- which is best for your needs. 50 51-- GNAT.Regexp (files g-regexp.ads/s-regexp.ads/s-regexp.adb) 52-- This is a simple package providing Unix-style regular expression 53-- matching with the restriction that it matches entire strings. It 54-- is particularly useful for file name matching, and in particular 55-- it provides "globbing patterns" that are useful in implementing 56-- unix or DOS style wild card matching for file names. 57 58-- GNAT.Regpat (files g-regpat.ads/s-regpat.ads/s-regpat.adb) 59-- This is a more complete implementation of Unix-style regular 60-- expressions, copied from the Perl regular expression engine, 61-- written originally in C by Henry Spencer. It is functionally the 62-- same as that library. 63 64-- GNAT.Spitbol.Patterns (files g-spipat.ads/g-spipat.adb) 65-- This is a completely general pattern matching package based on the 66-- pattern language of SNOBOL4, as implemented in SPITBOL. The pattern 67-- language is modeled on context free grammars, with context sensitive 68-- extensions that provide full (type 0) computational capabilities. 69 70with System.Regpat; 71 72package GNAT.Regpat renames System.Regpat; 73