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118 lines
4.6 KiB
C
118 lines
4.6 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Netscape security libraries.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1994-2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Rob McCool (original author)
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* Nelson Bolyard <nelson@bolyard.me>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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* shexp.h: Defines and prototypes for shell exp. match routines
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*
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* This routine will match a string with a shell expression. The expressions
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* accepted are based loosely on the expressions accepted by zsh.
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*
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* o * matches anything
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* o ? matches one character
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* o \ will escape a special character
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* o $ matches the end of the string
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* Bracketed expressions:
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* o [abc] matches one occurence of a, b, or c.
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* o [^abc] matches any character except a, b, or c.
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* To be matched between [ and ], these characters must be escaped: \ ]
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* No other characters need be escaped between brackets.
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* Unnecessary escaping is permitted.
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* o [a-z] matches any character between a and z, inclusive.
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* The two range-definition characters must be alphanumeric ASCII.
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* If one is upper case and the other is lower case, then the ASCII
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* non-alphanumeric characters between Z and a will also be in range.
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* o [^a-z] matches any character except those between a and z, inclusive.
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* These forms cannot be combined, e.g [a-gp-z] does not work.
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* o Exclusions:
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* As a top level, outter-most expression only, the expression
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* foo~bar will match the expression foo, provided it does not also
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* match the expression bar. Either expression or both may be a union.
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* Except between brackets, any unescaped ~ is an exclusion.
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* At most one exclusion is permitted.
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* Exclusions cannot be nested (contain other exclusions).
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* example: *~abc will match any string except abc
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* o Unions:
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* (foo|bar) will match either the expression foo, or the expression bar.
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* At least one '|' separator is required. More are permitted.
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* Expressions inside unions may not include unions or exclusions.
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* Inside a union, to be matched and not treated as a special character,
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* these characters must be escaped: \ ( | ) [ ~ except when they occur
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* inside a bracketed expression, where only \ and ] require escaping.
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*
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* The public interface to these routines is documented below.
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*
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*/
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#ifndef SHEXP_H
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#define SHEXP_H
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#include "utilrename.h"
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/*
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* Requires that the macro MALLOC be set to a "safe" malloc that will
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* exit if no memory is available.
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*/
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/* --------------------------- Public routines ---------------------------- */
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/*
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* shexp_valid takes a shell expression exp as input. It returns:
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*
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* NON_SXP if exp is a standard string
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* INVALID_SXP if exp is a shell expression, but invalid
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* VALID_SXP if exp is a valid shell expression
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*/
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#define NON_SXP -1
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#define INVALID_SXP -2
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#define VALID_SXP 1
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SEC_BEGIN_PROTOS
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extern int PORT_RegExpValid(const char *exp);
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extern int PORT_RegExpSearch(const char *str, const char *exp);
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/* same as above but uses case insensitive search */
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extern int PORT_RegExpCaseSearch(const char *str, const char *exp);
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SEC_END_PROTOS
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#endif
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