Delete bundled copy of NSS and replace with README.

nss/lib/util/portreg.h

-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-/*
- * shexp.h: Defines and prototypes for shell exp. match routines
- * 
- * This routine will match a string with a shell expression. The expressions
- * accepted are based loosely on the expressions accepted by zsh.
- * 
- * o * matches anything
- * o ? matches one character
- * o \ will escape a special character
- * o $ matches the end of the string
- * Bracketed expressions:
- * o [abc] matches one occurence of a, b, or c.  
- * o [^abc] matches any character except a, b, or c.
- *     To be matched between [ and ], these characters must be escaped: \ ]
- *     No other characters need be escaped between brackets. 
- *     Unnecessary escaping is permitted.
- * o [a-z] matches any character between a and z, inclusive.
- *     The two range-definition characters must be alphanumeric ASCII.
- *     If one is upper case and the other is lower case, then the ASCII
- *     non-alphanumeric characters between Z and a will also be in range.
- * o [^a-z] matches any character except those between a and z, inclusive.
- *     These forms cannot be combined, e.g [a-gp-z] does not work.
- * o Exclusions:
- *   As a top level, outter-most expression only, the expression
- *   foo~bar will match the expression foo, provided it does not also 
- *     match the expression bar.  Either expression or both may be a union.
- *     Except between brackets, any unescaped ~ is an exclusion. 
- *     At most one exclusion is permitted.
- *     Exclusions cannot be nested (contain other exclusions).
- *     example: *~abc will match any string except abc
- * o Unions:
- *   (foo|bar) will match either the expression foo, or the expression bar.
- *     At least one '|' separator is required.  More are permitted.
- *     Expressions inside unions may not include unions or exclusions.
- *     Inside a union, to be matched and not treated as a special character,
- *     these characters must be escaped: \ ( | ) [ ~ except when they occur
- *     inside a bracketed expression, where only \ and ] require escaping.
- *
- * The public interface to these routines is documented below.
- * 
- */
- 
-#ifndef SHEXP_H
-#define SHEXP_H
-
-#include "utilrename.h"
-/*
- * Requires that the macro MALLOC be set to a "safe" malloc that will 
- * exit if no memory is available. 
- */
-
-
-/* --------------------------- Public routines ---------------------------- */
-
-
-/*
- * shexp_valid takes a shell expression exp as input. It returns:
- * 
- *  NON_SXP      if exp is a standard string
- *  INVALID_SXP  if exp is a shell expression, but invalid
- *  VALID_SXP    if exp is a valid shell expression
- */
-
-#define NON_SXP -1
-#define INVALID_SXP -2
-#define VALID_SXP 1
-
-SEC_BEGIN_PROTOS
-
-extern int PORT_RegExpValid(const char *exp);
-
-extern int PORT_RegExpSearch(const char *str, const char *exp);
-
-/* same as above but uses case insensitive search */
-extern int PORT_RegExpCaseSearch(const char *str, const char *exp);
-
-SEC_END_PROTOS
-
-#endif