138 lines
4.3 KiB
C
138 lines
4.3 KiB
C
/*
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* Copyright 2010 Vincent Sanders <vince@kyllikki.org>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file utils/filepath.h
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* @brief Utility routines to obtain paths to file resources.
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*/
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#ifndef _NETSURF_UTILS_FILEPATH_H_
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#define _NETSURF_UTILS_FILEPATH_H_
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#include <stdarg.h>
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#include "utils/errors.h"
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/**
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* Create a normalised file name.
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*
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* If the file described by the format exists and is accessible the
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* normalised path is placed in str and a pointer to str returned
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* otherwise NULL is returned. The string in str is always modified.
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*
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* @param str A buffer to contain the normalised file name must be at
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* least PATH_MAX bytes long.
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* @param format A printf format for the filename.
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* @param ap The list of arguments for the format.
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* @return A pointer to the expanded filename or NULL if the file is
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* not present or accessible.
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*/
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char *filepath_vsfindfile(char *str, const char *format, va_list ap);
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/**
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* Create a normalised file name.
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*
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* Similar to vsfindfile but takes variadic (printf like) parameters
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*/
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char *filepath_sfindfile(char *str, const char *format, ...);
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/**
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* Create a normalised file name.
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*
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* Similar to sfindfile but allocates its own storage for the
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* returned string. The caller must free this sorage.
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*/
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char *filepath_findfile(const char *format, ...);
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/**
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* Searches an array of resource paths for a file.
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*
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* Iterates through a vector of resource paths and returns the
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* normalised file name of the first acessible file or NULL if no file
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* can be found in any of the resource paths.
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*
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* \param respathv The resource path vector to iterate.
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* \param filepath The buffer to place the result in.
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* \param filename The filename of the resource to search for.
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* \return A pointer to filepath if a target is found or NULL if not.
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*/
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char *filepath_sfind(char **respathv, char *filepath, const char *filename);
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/**
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* Searches an array of resource paths for a file.
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*
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* Similar to filepath_sfind except it allocates its own storage for
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* the returned string. The caller must free this sorage.
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*/
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char *filepath_find(char **respathv, const char *filename);
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/**
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* Searches an array of resource paths for a file optionally forcing a default.
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*
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* Similar to filepath_sfind except if no resource is found the default
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* is used as an additional path element to search, if that still
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* fails the returned path is set to the concatination of the default
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* path and the filename.
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*
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* \param respathv The resource path vector to iterate.
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* \param filepath The buffer to place the result in. Must have space for PATH_MAX bytes.
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* \param filename The filename of the resource to search for.
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* \param def The default path to use
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* \return A pointer to filepath if a target is found or the default if not
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*/
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char *filepath_sfinddef(char **respathv, char *filepath, const char *filename,
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const char *def);
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/**
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* Merge two string vectors into a resource search path vector.
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*
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* @param pathv A string vector containing path elemets to scan.
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* @param langv A string vector containing language names to enumerate.
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* @return A pointer to a NULL terminated string vector of valid
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* resource directories.
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*/
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char **filepath_generate(char * const *pathv, const char * const *langv);
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/**
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* Convert a colon separated list of path elements into a string vector.
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*
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* @param path A colon separated path.
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* @return A pointer to a NULL terminated string vector of valid
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* resource directories.
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*/
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char **filepath_path_to_strvec(const char *path);
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/**
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* Free a string vector.
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*
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* Free a string vector allocated by filepath_path_to_strvec
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*/
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void filepath_free_strvec(char **pathv);
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#endif /* _NETSURF_UTILS_FILEPATH_H_ */
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