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annotate lib/unistr/u-strcspn.h @ 17431:744044c581c4

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getcwd-lgpl: port to Tru64 * lib/getcwd-lgpl.c: Include <stdlib.h>, for malloc etc. Problem reported by Steven M. Schweda in <http://lists.gnu.org/archive/html/bug-gzip/2013-06/msg00010.html>.
author Paul Eggert <eggert@cs.ucla.edu>
date Tue, 11 Jun 2013 19:52:46 -0700
parents e542fd46ad6f
children
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1 /* Search for some characters in UTF-8/UTF-16/UTF-32 string.
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Eric Blake <eblake@redhat.com>
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2 Copyright (C) 1999, 2002, 2006, 2009-2013 Free Software Foundation, Inc.
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3 Written by Bruno Haible <bruno@clisp.org>, 2002.
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4
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5 This program is free software: you can redistribute it and/or modify it
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6 under the terms of the GNU Lesser General Public License as published
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7 by the Free Software Foundation; either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
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18 size_t
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19 FUNC (const UNIT *str, const UNIT *reject)
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20 {
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21 /* Optimize two cases. */
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22 if (reject[0] == 0)
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23 return U_STRLEN (str);
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24 {
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25 ucs4_t uc;
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26 int count = U_STRMBTOUC (&uc, reject);
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27 if (count >= 0 && reject[count] == 0)
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28 {
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29 const UNIT *found = U_STRCHR (str, uc);
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30 if (found != NULL)
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31 return found - str;
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32 else
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33 return U_STRLEN (str);
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34 }
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35 }
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36 /* General case. */
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37 {
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38 const UNIT *ptr = str;
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39
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40 for (;;)
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41 {
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42 ucs4_t uc;
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43 int count = U_STRMBTOUC (&uc, ptr);
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44 if (count == 0)
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45 return ptr - str;
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46 if (count < 0)
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47 break;
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48 if (U_STRCHR (reject, uc))
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49 return ptr - str;
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50 ptr += count;
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51 }
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52 return U_STRLEN (str);
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53 }
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54 }