75 lines
4.5 KiB
Ada
75 lines
4.5 KiB
Ada
------------------------------------------------------------------------------
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-- --
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-- GNAT LIBRARY COMPONENTS --
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-- --
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-- G N A T . R E G P A T --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 1986 by University of Toronto. --
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-- Copyright (C) 1996-2008, AdaCore --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 2, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING. If not, write --
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-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
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-- Boston, MA 02110-1301, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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-- This package implements roughly the same set of regular expressions as
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-- are available in the Perl or Python programming languages.
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-- This is an extension of the original V7 style regular expression library
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-- written in C by Henry Spencer. Apart from the translation to Ada, the
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-- interface has been considerably changed to use the Ada String type
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-- instead of C-style nul-terminated strings.
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-- See file s-regpat.ads for full documentation of the interface
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------------------------------------------------------------
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-- Summary of Pattern Matching Packages in GNAT Hierarchy --
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------------------------------------------------------------
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-- There are three related packages that perform pattern matching functions.
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-- the following is an outline of these packages, to help you determine
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-- which is best for your needs.
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-- GNAT.Regexp (files g-regexp.ads/s-regexp.ads/s-regexp.adb)
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-- This is a simple package providing Unix-style regular expression
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-- matching with the restriction that it matches entire strings. It
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-- is particularly useful for file name matching, and in particular
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-- it provides "globbing patterns" that are useful in implementing
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-- unix or DOS style wild card matching for file names.
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-- GNAT.Regpat (files g-regpat.ads/s-regpat.ads/s-regpat.adb)
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-- This is a more complete implementation of Unix-style regular
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-- expressions, copied from the Perl regular expression engine,
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-- written originally in C by Henry Spencer. It is functionally the
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-- same as that library.
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-- GNAT.Spitbol.Patterns (files g-spipat.ads/g-spipat.adb)
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-- This is a completely general pattern matching package based on the
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-- pattern language of SNOBOL4, as implemented in SPITBOL. The pattern
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-- language is modeled on context free grammars, with context sensitive
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-- extensions that provide full (type 0) computational capabilities.
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with System.Regpat;
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package GNAT.Regpat renames System.Regpat;
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