File : g-regpat.ads
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 -- --
20 -- --
21 -- --
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
70 with System.Regpat;
71
72 package GNAT.Regpat renames System.Regpat;