Mercurial > gnulib
view lib/trim.c @ 40206:770a5696761e
relocatable-prog: Use wrapper-free installation on Mac OS X, take 2.
This approach supports relocatable installation of shared libraries
which depend on other shared libraries from the same package.
* m4/relocatable.m4 (gl_RELOCATABLE_BODY): Determine use_macos_tools.
If use_macos_tools is true, use reloc-ldflags and set LIBTOOL to be a
wrapper around the original LIBTOOL.
* build-aux/reloc-ldflags: Add support for Mac OS X, which uses the
token '@loader_path' instead of '$ORIGIN'.
* build-aux/libtool-reloc: New file.
* modules/relocatable-prog (Files): Add it.
* doc/relocatable-maint.texi (Supporting Relocation): Update to match
the recent changes. Document the need to set the *_LDFLAGS of libraries.
RELOCATABLE_LIBRARY_PATH and RELOCATABLE_CONFIG_H_DIR should be set in
Makefile.am, not in configure.ac.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Mon, 04 Mar 2019 17:25:09 +0100 |
parents | b06060465f09 |
children |
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/* Removes leading and/or trailing whitespaces Copyright (C) 2006-2019 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 <https://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; }