1 /*

     2 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 * FUNCTION

    16 * <<strpbrk>>---find chars in string

    17 * INDEX

    18 * strpbrk

    19 * ANSI_SYNOPSIS

    20 * #include <string.h>

    21 * char *strpbrk(const char *<[s1]>, const char *<[s2]>);

    22 * TRAD_SYNOPSIS

    23 * #include <string.h>

    24 * char *strpbrk(<[s1]>, <[s2]>)

    25 * char *<[s1]>;

    26 * char *<[s2]>;

    27 * This function locates the first occurence in the string

    28 * pointed to by <[s1]> of any character in string pointed to by

    29 * <[s2]> (excluding the terminating null character).

    30 * RETURNS

    31 * <<strpbrk>> returns a pointer to the character found in <[s1]>, or a

    32 * null pointer if no character from <[s2]> occurs in <[s1]>.

    33 * PORTABILITY

    34 * <<strpbrk>> requires no supporting OS subroutines.

    35 * 

    36 *

    37 */

    38 

    39 

    40 

    41 #include <string.h>

    42 

    43 /**

    44 Scan string for specified characters.

    45 Scans string1 character by character, returning a pointer to the first character

    46 that matches with any of the characters in string2.

    47 The search does not includes the terminating null-characters.

    48 @return A pointer to the first appearance in string1 of a character specified in s2.

    49 If none of the characters specified in s2 exists in s1, a NULL pointer is returned.

    50 @param s1 Null-terminated string to be scanned. 

    51 @param s2 Null-terminated string containing the character set to search for.

    52 */

    53 EXPORT_C char *

    54 strpbrk (const char *s1, const char *s2)

    55 {

    56   const char *c = s2;

    57   if (!*s1)

    58     return (char *) NULL;

    59 

    60   while (*s1)

    61     {

    62       for (c = s2; *c; c++)

    63 	{

    64 	  if (*s1 == *c)

    65 	    break;

    66 	}

    67       if (*c)

    68 	break;

    69       s1++;

    70     }

    71 

    72   if (*c == '\0')

    73     s1 = NULL;

    74 

    75   return (char *) s1;

    76 }