99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
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/* Copyright (C) 1991,1992,1995,1996,1997,2001,2002, 2004
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Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301 USA */
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/*
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* August 2006. For Gawk: Borrowed from GLIBC to replace BSD licensed version.
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* DON'T steal this for your own code, just go to the GLIBC sources.
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* This version hacked unmercifully.
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*/
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/* Compare S1 and S2, ignoring case, returning less than, equal to or
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greater than zero if S1 is lexicographically less than,
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equal to or greater than S2. */
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int
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strcasecmp (s1, s2)
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const char *s1;
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const char *s2;
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{
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const unsigned char *p1 = (const unsigned char *) s1;
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const unsigned char *p2 = (const unsigned char *) s2;
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int result;
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if (p1 == p2)
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return 0;
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while ((result = tolower (*p1) - tolower (*p2++)) == 0)
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if (*p1++ == '\0')
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break;
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return result;
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}
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/* Compare at most N characters of two strings without taking care for
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the case.
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Copyright (C) 1992, 1996, 1997, 2001, 2004 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1335, USA
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*/
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/*
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* August 2006, for gawk, same comment applies. See strncase.c
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* in the GLIBC sources.
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*/
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/* Compare no more than N characters of S1 and S2,
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ignoring case, returning less than, equal to or
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greater than zero if S1 is lexicographically less
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than, equal to or greater than S2. */
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int
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strncasecmp (s1, s2, n)
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const char *s1;
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const char *s2;
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size_t n;
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{
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const unsigned char *p1 = (const unsigned char *) s1;
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const unsigned char *p2 = (const unsigned char *) s2;
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int result;
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if (p1 == p2 || n == 0)
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return 0;
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while ((result = tolower (*p1) - tolower (*p2++)) == 0)
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if (*p1++ == '\0' || --n == 0)
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break;
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return result;
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}
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