Mercurial > gnulib
view lib/trim.c @ 18325:33db65a13e67
Use GCC_LINT, not lint
FreeBSD and Cygwin #define _Noreturn to empty if 'lint' is defined.
Problem reported by Ken Brown in: http://bugs.gnu.org/23640
* doc/posix-headers/stdnoreturn.texi (stdnoreturn.h):
Document problem with lint and _Noreturn.
* lib/diffseq.h (IF_LINT, IF_LINT2):
* lib/fts.c (sccsid):
* lib/getndelim2.c (IF_LINT):
* lib/gl_anylinked_list2.h (gl_linked_iterator)
(gl_linked_iterator_from_to):
* lib/gl_anytree_list2.h (gl_tree_iterator)
(gl_tree_iterator_from_to):
* lib/gl_anytree_oset.h (gl_tree_iterator):
* lib/gl_array_list.c (gl_array_iterator)
(gl_array_iterator_from_to):
* lib/gl_array_oset.c (gl_array_iterator):
* lib/gl_carray_list.c (gl_carray_iterator)
(gl_carray_iterator_from_to):
* lib/idcache.c:
* lib/inet_ntop.c (IF_LINT):
* lib/regcomp.c (build_charclass_op, create_tree):
* lib/regex_internal.c (re_acquire_state)
(re_acquire_state_context):
* lib/trigl.c (rcsid):
* lib/trim.c (IF_LINT):
* lib/vasnprintf.c (IF_LINT):
* lib/verify.h (assume):
Treat GCC_LINT like lint.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Mon, 30 May 2016 12:18:19 -0700 |
parents | 31b2239ca59c |
children | 12df2165ec1c |
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/* Removes leading and/or trailing whitespaces Copyright (C) 2006-2016 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* Written by Davide Angelocola <davide.angelocola@gmail.com> */ #include <config.h> /* Specification. */ #include "trim.h" #include <ctype.h> #include <string.h> #include <stddef.h> #include <stdlib.h> #include "mbchar.h" #include "mbiter.h" #include "xalloc.h" /* Use this to suppress gcc's "...may be used before initialized" warnings. */ #if defined GCC_LINT || defined lint # define IF_LINT(Code) Code #else # define IF_LINT(Code) /* empty */ #endif char * trim2 (const char *s, int how) { char *d; d = strdup (s); if (!d) xalloc_die (); if (MB_CUR_MAX > 1) { mbi_iterator_t i; /* Trim leading whitespaces. */ if (how != TRIM_TRAILING) { mbi_init (i, d, strlen (d)); for (; mbi_avail (i) && mb_isspace (mbi_cur (i)); mbi_advance (i)) ; memmove (d, mbi_cur_ptr (i), strlen (mbi_cur_ptr (i)) + 1); } /* Trim trailing whitespaces. */ if (how != TRIM_LEADING) { unsigned int state = 0; char *r IF_LINT (= NULL); /* used only while state = 2 */ mbi_init (i, d, strlen (d)); for (; mbi_avail (i); mbi_advance (i)) { if (state == 0 && mb_isspace (mbi_cur (i))) continue; if (state == 0 && !mb_isspace (mbi_cur (i))) { state = 1; continue; } if (state == 1 && !mb_isspace (mbi_cur (i))) continue; if (state == 1 && mb_isspace (mbi_cur (i))) { state = 2; r = (char *) mbi_cur_ptr (i); } else if (state == 2 && mb_isspace (mbi_cur (i))) { /* empty */ } else { state = 1; } } if (state == 2) *r = '\0'; } } else { char *p; /* Trim leading whitespaces. */ if (how != TRIM_TRAILING) { for (p = d; *p && isspace ((unsigned char) *p); p++) ; memmove (d, p, strlen (p) + 1); } /* Trim trailing whitespaces. */ if (how != TRIM_LEADING) { for (p = d + strlen (d) - 1; p >= d && isspace ((unsigned char) *p); p--) *p = '\0'; } } return d; }