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annotate lib/wcwidth.c @ 9071:ee2dc6c88b11

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Provide wcwidth replacement in separate file wcwidth.c.
author Bruno Haible <bruno@clisp.org>
date Sat, 07 Jul 2007 19:27:06 +0000
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children eff03f4ce262
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9071
ee2dc6c88b11 Provide wcwidth replacement in separate file wcwidth.c.
Bruno Haible <bruno@clisp.org>
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1 /* Determine the number of screen columns needed for a character.
ee2dc6c88b11 Provide wcwidth replacement in separate file wcwidth.c.
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2 Copyright (C) 2006, 2007 Free Software Foundation, Inc.
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3
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4 This program is free software; you can redistribute it and/or modify
ee2dc6c88b11 Provide wcwidth replacement in separate file wcwidth.c.
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5 it under the terms of the GNU General Public License as published by
ee2dc6c88b11 Provide wcwidth replacement in separate file wcwidth.c.
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6 the Free Software Foundation; either version 2, or (at your option)
ee2dc6c88b11 Provide wcwidth replacement in separate file wcwidth.c.
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7 any later version.
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8
ee2dc6c88b11 Provide wcwidth replacement in separate file wcwidth.c.
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9 This program is distributed in the hope that it will be useful,
ee2dc6c88b11 Provide wcwidth replacement in separate file wcwidth.c.
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
ee2dc6c88b11 Provide wcwidth replacement in separate file wcwidth.c.
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
ee2dc6c88b11 Provide wcwidth replacement in separate file wcwidth.c.
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12 GNU General Public License for more details.
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13
ee2dc6c88b11 Provide wcwidth replacement in separate file wcwidth.c.
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14 You should have received a copy of the GNU General Public License
ee2dc6c88b11 Provide wcwidth replacement in separate file wcwidth.c.
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15 along with this program; if not, write to the Free Software Foundation,
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16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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17
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18 #include <config.h>
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19
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20 /* Specification. */
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21 #include "wcwidth.h"
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22
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23 /* Get iswprint. */
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24 #include <wctype.h>
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25
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26 int
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27 rpl_wcwidth (wchar_t wc)
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28 {
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29 return wc == 0 ? 0 : iswprint (wc) ? 1 : -1;
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30 }