(SDK) Document file_path.c

This commit is contained in:
twinaphex 2015-01-08 23:08:53 +01:00
parent 7c4307329a
commit c0800cf0d4
2 changed files with 491 additions and 42 deletions

View File

@ -66,6 +66,15 @@
#include <unistd.h>
#endif
/**
* path_get_extension:
* @path : path
*
* Gets extension of file. Only '.'s
* after the last slash are considered.
*
* Returns: extension part from the path.
*/
const char *path_get_extension(const char *path)
{
const char *ext = strrchr(path_basename(path), '.');
@ -74,6 +83,16 @@ const char *path_get_extension(const char *path)
return ext + 1;
}
/**
* path_remove_extension:
* @path : path
*
* Removes the extension from the path and returns the result.
* Removes all text after and including the last '.'.
* Only '.'s after the last slash are considered.
*
* Returns: path with the extension part removed.
*/
char *path_remove_extension(char *path)
{
char *last = (char*)strrchr(path_basename(path), '.');
@ -82,6 +101,14 @@ char *path_remove_extension(char *path)
return last;
}
/**
* path_char_is_slash:
* @c : character
*
* Checks if character (@c) is a slash.
*
* Returns: true (1) if character is a slash, otherwise false (0).
*/
static bool path_char_is_slash(char c)
{
#ifdef _WIN32
@ -91,6 +118,13 @@ static bool path_char_is_slash(char c)
#endif
}
/**
* path_default_slash:
*
* Gets the default slash separator.
*
* Returns: default slash separator.
*/
static const char *path_default_slash(void)
{
#ifdef _WIN32
@ -100,15 +134,33 @@ static const char *path_default_slash(void)
#endif
}
/**
* path_contains_compressed_file:
* @path : path
*
* Checks if path contains a compressed file.
*
* Currently we only check for hash symbol (#) inside the pathname.
* If path is ever expanded to a general URI, we should check for that here.
*
* Example: Somewhere in the path there might be a compressed file
* E.g.: /path/to/file.7z#mygame.img
*
* Returns: true (1) if path contains compressed file, otherwise false (0).
**/
bool path_contains_compressed_file(const char *path)
{
/*
* Currently we only check for hash symbol inside the pathname.
* If path is ever expanded to a general URI, we should check for that here.
*/
return (strchr(path,'#') != NULL);
}
/**
* path_is_compressed_file:
* @path : path
*
* Checks if path is a compressed file.
*
* Returns: true (1) if path is a compressed file, otherwise false (0).
**/
bool path_is_compressed_file(const char* path)
{
#ifdef HAVE_COMPRESSION
@ -126,6 +178,14 @@ bool path_is_compressed_file(const char* path)
return false;
}
/**
* path_is_directory:
* @path : path
*
* Checks if path is a directory.
*
* Returns: true (1) if path is a directory, otherwise false (0).
*/
bool path_is_directory(const char *path)
{
#ifdef _WIN32
@ -140,6 +200,14 @@ bool path_is_directory(const char *path)
#endif
}
/**
* path_file_exists:
* @path : path
*
* Checks if a file already exists at the specified path (@path).
*
* Returns: true (1) if file already exists, otherwise false (0).
*/
bool path_file_exists(const char *path)
{
FILE *dummy = fopen(path, "rb");
@ -151,6 +219,27 @@ bool path_file_exists(const char *path)
return true;
}
/**
* fill_pathname:
* @out_path : output path
* @in_path : input path
* @replace : what to replace
* @size : buffer size of output path
*
* FIXME: Verify
*
* Replaces filename extension with 'replace' and outputs result to out_path.
* The extension here is considered to be the string from the last '.'
* to the end.
*
* Only '.'s after the last slash are considered as extensions.
* If no '.' is present, in_path and replace will simply be concatenated.
* 'size' is buffer size of 'out_path'.
* E.g.: in_path = "/foo/bar/baz/boo.c", replace = ".asm" =>
* out_path = "/foo/bar/baz/boo.asm"
* E.g.: in_path = "/foo/bar/baz/boo.c", replace = "" =>
* out_path = "/foo/bar/baz/boo"
*/
void fill_pathname(char *out_path, const char *in_path,
const char *replace, size_t size)
{
@ -166,6 +255,20 @@ void fill_pathname(char *out_path, const char *in_path,
rarch_assert(strlcat(out_path, replace, size) < size);
}
/**
* fill_pathname_noext:
* @out_path : output path
* @in_path : input path
* @replace : what to replace
* @size : buffer size of output path
*
* Appends a filename extension 'replace' to 'in_path', and outputs
* result in 'out_path'.
*
* Assumes in_path has no extension. If an extension is still
* present in 'in_path', it will be ignored.
*
*/
void fill_pathname_noext(char *out_path, const char *in_path,
const char *replace, size_t size)
{
@ -186,14 +289,20 @@ static char *find_last_slash(const char *str)
return (char*)slash;
}
/* Assumes path is a directory. Appends a slash
* if not already there. */
/**
* fill_pathname_slash:
* @path : path
* @size : size of path
*
* Assumes path is a directory. Appends a slash
* if not already there.
**/
void fill_pathname_slash(char *path, size_t size)
{
size_t path_len = strlen(path);
const char *last_slash = find_last_slash(path);
// Try to preserve slash type.
/* Try to preserve slash type. */
if (last_slash && (last_slash != (path + path_len - 1)))
{
char join_str[2] = {*last_slash};
@ -203,6 +312,23 @@ void fill_pathname_slash(char *path, size_t size)
rarch_assert(strlcat(path, path_default_slash(), size) < size);
}
/**
* fill_pathname_dir:
* @in_dir : input directory path
* @in_basename : input basename to be appended to @in_dir
* @replace : replacement to be appended to @in_basename
* @size : size of buffer
*
* Appends basename of 'in_basename', to 'in_dir', along with 'replace'.
* Basename of in_basename is the string after the last '/' or '\\',
* i.e the filename without directories.
*
* If in_basename has no '/' or '\\', the whole 'in_basename' will be used.
* 'size' is buffer size of 'in_dir'.
*
* E.g..: in_dir = "/tmp/some_dir", in_basename = "/some_content/foo.c",
* replace = ".asm" => in_dir = "/tmp/some_dir/foo.c.asm"
**/
void fill_pathname_dir(char *in_dir, const char *in_basename,
const char *replace, size_t size)
{
@ -213,6 +339,14 @@ void fill_pathname_dir(char *in_dir, const char *in_basename,
rarch_assert(strlcat(in_dir, replace, size) < size);
}
/**
* fill_pathname_base:
* @out : output path
* @in_path : input path
* @size : size of output path
*
* Copies basename of @in_path into @out_path.
**/
void fill_pathname_base(char *out, const char *in_path, size_t size)
{
const char *ptr = find_last_slash(in_path);
@ -241,6 +375,16 @@ void fill_pathname_base(char *out, const char *in_path, size_t size)
rarch_assert(strlcpy(out, ptr, size) < size);
}
/**
* fill_pathname_basedir:
* @out_dir : output directory
* @in_path : input path
* @size : size of output directory
*
* Copies base directory of @in_path into @out_path.
* If in_path is a path without any slashes (relative current directory),
* @out_path will get path "./".
**/
void fill_pathname_basedir(char *out_dir,
const char *in_path, size_t size)
{
@ -248,6 +392,15 @@ void fill_pathname_basedir(char *out_dir,
path_basedir(out_dir);
}
/**
* fill_pathname_parent_dir:
* @out_dir : output directory
* @in_dir : input directory
* @size : size of output directory
*
* Copies parent directory of @in_dir into @out_dir.
* Assumes @in_dir is a directory. Keeps trailing '/'.
**/
void fill_pathname_parent_dir(char *out_dir,
const char *in_dir, size_t size)
{
@ -255,6 +408,18 @@ void fill_pathname_parent_dir(char *out_dir,
path_parent_dir(out_dir);
}
/**
* fill_dated_filename:
* @out_filename : output filename
* @ext : extension of output filename
* @size : buffer size of output filename
*
* Creates a 'dated' filename prefixed by 'RetroArch', and
* concatenates extension (@ext) to it.
*
* E.g.:
* out_filename = "RetroArch-{month}{day}-{Hours}{Minutes}.{@ext}"
**/
void fill_dated_filename(char *out_filename,
const char *ext, size_t size)
{
@ -266,6 +431,13 @@ void fill_dated_filename(char *out_filename,
strlcat(out_filename, ext, size);
}
/**
* path_basedir:
* @path : path
*
* Extracts base directory by mutating path.
* Keeps trailing '/'.
**/
void path_basedir(char *path)
{
char *last = NULL;
@ -287,6 +459,13 @@ void path_basedir(char *path)
snprintf(path, 3, ".%s", path_default_slash());
}
/**
* path_parent_dir:
* @path : path
*
* Extracts parent directory by mutating path.
* Assumes that path is a directory. Keeps trailing '/'.
**/
void path_parent_dir(char *path)
{
size_t len = strlen(path);
@ -295,12 +474,20 @@ void path_parent_dir(char *path)
path_basedir(path);
}
/**
* path_basename:
* @path : path
*
* Get basename from @path.
*
* Returns: basename from path.
**/
const char *path_basename(const char *path)
{
const char *last = find_last_slash(path);
/* We cut either at the last hash or the last slash; whichever comes last */
#ifdef HAVE_COMPRESSION
/* We cut either at the last hash or the last slash; whichever comes last */
const char *last_hash = strchr(path,'#');
if (last_hash > last)
return last_hash + 1;
@ -311,6 +498,14 @@ const char *path_basename(const char *path)
return path;
}
/**
* path_is_absolute:
* @path : path
*
* Checks if @path is an absolute path or a relative path.
*
* Returns: true (1) if path is absolute, false (1) if path is relative.
**/
bool path_is_absolute(const char *path)
{
#ifdef _WIN32
@ -322,6 +517,14 @@ bool path_is_absolute(const char *path)
#endif
}
/**
* path_resolve_realpath:
* @buf : buffer for path
* @size : size of buffer
*
* Turns relative paths into absolute path.
* If relative, rebases on current working dir.
**/
void path_resolve_realpath(char *buf, size_t size)
{
#ifndef RARCH_CONSOLE
@ -348,6 +551,14 @@ void path_resolve_realpath(char *buf, size_t size)
#endif
}
/**
* path_mkdir_norecurse:
* @dir : directory
*
* Create directory on filesystem.
*
* Returns: true (1) if directory could be created, otherwise false (0).
**/
static bool path_mkdir_norecurse(const char *dir)
{
int ret;
@ -366,6 +577,14 @@ static bool path_mkdir_norecurse(const char *dir)
return ret == 0;
}
/**
* path_mkdir:
* @dir : directory
*
* Create directory on filesystem.
*
* Returns: true (1) if directory could be created, otherwise false (0).
**/
bool path_mkdir(const char *dir)
{
const char *target = NULL;
@ -406,6 +625,18 @@ end:
return ret;
}
/**
* fill_pathname_resolve_relative:
* @out_path : output path
* @in_refpath : input reference path
* @in_path : input path
* @size : size of @out_path
*
* Joins basedir of @in_refpath together with @in_path.
* If @in_path is an absolute path, out_path = in_path.
* E.g.: in_refpath = "/foo/bar/baz.a", in_path = "foobar.cg",
* out_path = "/foo/bar/foobar.cg".
**/
void fill_pathname_resolve_relative(char *out_path,
const char *in_refpath, const char *in_path, size_t size)
{
@ -419,6 +650,17 @@ void fill_pathname_resolve_relative(char *out_path,
}
}
/**
* fill_pathname_join:
* @out_path : output path
* @dir : directory
* @path : path
* @size : size of output path
*
* Joins a directory (@dir) and path (@path) together.
* Makes sure not to get two consecutive slashes
* between directory and path.
**/
void fill_pathname_join(char *out_path,
const char *dir, const char *path, size_t size)
{
@ -430,6 +672,17 @@ void fill_pathname_join(char *out_path,
rarch_assert(strlcat(out_path, path, size) < size);
}
/**
* fill_pathname_join_delim:
* @out_path : output path
* @dir : directory
* @path : path
* @delim : delimiter
* @size : size of output path
*
* Joins a directory (@dir) and path (@path) together
* using the given delimiter (@delim).
**/
void fill_pathname_join_delim(char *out_path, const char *dir,
const char *path, const char delim, size_t size)
{
@ -483,6 +736,21 @@ void fill_pathname_expand_special(char *out_path,
rarch_assert(strlcpy(out_path, in_path, size) < size);
}
/**
* fill_short_pathname_representation:
* @out_rep : output representation
* @in_path : input path
* @size : size of output representation
*
* Generates a short representation of path. It should only
* be used for displaying the result; the output representation is not
* binding in any meaningful way (for a normal path, this is the same as basename)
* In case of more complex URLs, this should cut everything except for
* the main image file.
*
* E.g.: "/path/to/game.img" -> game.img
* "/path/to/myarchive.7z#folder/to/game.img" -> game.img
*/
void fill_short_pathname_representation(char* out_rep,
const char *in_path, size_t size)
{
@ -507,7 +775,6 @@ void fill_short_pathname_representation(char* out_rep,
strlcpy(out_rep,path_short, size);
}
void fill_pathname_abbreviate_special(char *out_path,
const char *in_path, size_t size)
{

View File

@ -47,47 +47,141 @@ enum
};
/* path_is_compressed_file also means: The compressed file is supported */
/**
* path_is_compressed_file:
* @path : path
*
* Checks if path is a compressed file.
*
* Returns: true (1) if path is a compressed file, otherwise false (0).
**/
bool path_is_compressed_file(const char *path);
/* Somewhere in the path there might be a compressed file
/**
* path_contains_compressed_file:
* @path : path
*
* Checks if path contains a compressed file.
*
* Currently we only check for hash symbol (#) inside the pathname.
* If path is ever expanded to a general URI, we should check for that here.
*
* Example: Somewhere in the path there might be a compressed file
* E.g.: /path/to/file.7z#mygame.img
*/
*
* Returns: true (1) if path contains compressed file, otherwise false (0).
**/
bool path_contains_compressed_file(const char *path);
/**
* path_is_directory:
* @path : path
*
* Checks if path is a directory.
*
* Returns: true (1) if path is a directory, otherwise false (0).
*/
bool path_is_directory(const char *path);
/**
* path_file_exists:
* @path : path
*
* Checks if a file already exists at the specified path (@path).
*
* Returns: true (1) if file already exists, otherwise false (0).
*/
bool path_file_exists(const char *path);
/* Gets extension of file. Only '.'s after the last slash are considered. */
/**
* path_get_extension:
* @path : path
*
* Gets extension of file. Only '.'s
* after the last slash are considered.
*
* Returns: extension part from the path.
*/
const char *path_get_extension(const char *path);
/**
* path_mkdir:
* @dir : directory
*
* Create directory on filesystem.
*
* Returns: true (1) if directory could be created, otherwise false (0).
**/
bool path_mkdir(const char *dir);
/* Removes all text after and including the last '.'.
* Only '.'s after the last slash are considered. */
/**
* path_remove_extension:
* @path : path
*
* Removes the extension from the path and returns the result.
* Removes all text after and including the last '.'.
* Only '.'s after the last slash are considered.
*
* Returns: path with the extension part removed.
*/
char *path_remove_extension(char *path);
/* Returns basename from path. */
/**
* path_basename:
* @path : path
*
* Get basename from @path.
*
* Returns: basename from path.
**/
const char *path_basename(const char *path);
/* Extracts base directory by mutating path.
* Keeps trailing '/'. */
/**
* path_basedir:
* @path : path
*
* Extracts base directory by mutating path.
* Keeps trailing '/'.
**/
void path_basedir(char *path);
/* Extracts parent directory by mutating path.
* Assumes that path is a directory. Keeps trailing '/'. */
/**
* path_parent_dir:
* @path : path
*
* Extracts parent directory by mutating path.
* Assumes that path is a directory. Keeps trailing '/'.
**/
void path_parent_dir(char *path);
/* Turns relative paths into absolute path.
* If relative, rebases on current working dir. */
/**
* path_resolve_realpath:
* @buf : buffer for path
* @size : size of buffer
*
* Turns relative paths into absolute path.
* If relative, rebases on current working dir.
**/
void path_resolve_realpath(char *buf, size_t size);
/**
* path_is_absolute:
* @path : path
*
* Checks if @path is an absolute path or a relative path.
*
* Returns: true (1) if path is absolute, false (1) if path is relative.
**/
bool path_is_absolute(const char *path);
/* Path-name operations.
* If any of these operation are detected to overflow, the application will
* be terminated.
/**
* fill_pathname:
* @out_path : output path
* @in_path : input path
* @replace : what to replace
* @size : buffer size of output path
*
* FIXME: Verify
*
* Replaces filename extension with 'replace' and outputs result to out_path.
* The extension here is considered to be the string from the last '.'
@ -104,20 +198,46 @@ bool path_is_absolute(const char *path);
void fill_pathname(char *out_path, const char *in_path,
const char *replace, size_t size);
/**
* fill_dated_filename:
* @out_filename : output filename
* @ext : extension of output filename
* @size : buffer size of output filename
*
* Creates a 'dated' filename prefixed by 'RetroArch', and
* concatenates extension (@ext) to it.
*
* E.g.:
* out_filename = "RetroArch-{month}{day}-{Hours}{Minutes}.{@ext}"
**/
void fill_dated_filename(char *out_filename,
const char *ext, size_t size);
/* Appends a filename extension 'replace' to 'in_path', and outputs
/**
* fill_pathname_noext:
* @out_path : output path
* @in_path : input path
* @replace : what to replace
* @size : buffer size of output path
*
* Appends a filename extension 'replace' to 'in_path', and outputs
* result in 'out_path'.
*
* Assumes in_path has no extension. If an extension is still
* present in 'in_path', it will be ignored.
*
* 'size' is buffer size of 'out_path'. */
*/
void fill_pathname_noext(char *out_path, const char *in_path,
const char *replace, size_t size);
/* Appends basename of 'in_basename', to 'in_dir', along with 'replace'.
/**
* fill_pathname_dir:
* @in_dir : input directory path
* @in_basename : input basename to be appended to @in_dir
* @replace : replacement to be appended to @in_basename
* @size : size of buffer
*
* Appends basename of 'in_basename', to 'in_dir', along with 'replace'.
* Basename of in_basename is the string after the last '/' or '\\',
* i.e the filename without directories.
*
@ -126,45 +246,99 @@ void fill_pathname_noext(char *out_path, const char *in_path,
*
* E.g..: in_dir = "/tmp/some_dir", in_basename = "/some_content/foo.c",
* replace = ".asm" => in_dir = "/tmp/some_dir/foo.c.asm"
*
* */
**/
void fill_pathname_dir(char *in_dir, const char *in_basename,
const char *replace, size_t size);
/* Copies basename of in_path into out_path. */
/**
* fill_pathname_base:
* @out : output path
* @in_path : input path
* @size : size of output path
*
* Copies basename of @in_path into @out_path.
**/
void fill_pathname_base(char *out_path, const char *in_path, size_t size);
/* Copies base directory of in_path into out_path.
/**
* fill_pathname_basedir:
* @out_dir : output directory
* @in_path : input path
* @size : size of output directory
*
* Copies base directory of @in_path into @out_path.
* If in_path is a path without any slashes (relative current directory),
* out_path will get path "./". */
* @out_path will get path "./".
**/
void fill_pathname_basedir(char *out_path, const char *in_path, size_t size);
/* Copies parent directory of in_dir into out_dir.
* Assumes in_dir is a directory. Keeps trailing '/'. */
/**
* fill_pathname_parent_dir:
* @out_dir : output directory
* @in_dir : input directory
* @size : size of output directory
*
* Copies parent directory of @in_dir into @out_dir.
* Assumes @in_dir is a directory. Keeps trailing '/'.
**/
void fill_pathname_parent_dir(char *out_dir,
const char *in_dir, size_t size);
/* Joins basedir of in_refpath together with in_path.
* If in_path is an absolute path, out_path = in_path.
/**
* fill_pathname_resolve_relative:
* @out_path : output path
* @in_refpath : input reference path
* @in_path : input path
* @size : size of @out_path
*
* Joins basedir of @in_refpath together with @in_path.
* If @in_path is an absolute path, out_path = in_path.
* E.g.: in_refpath = "/foo/bar/baz.a", in_path = "foobar.cg",
* out_path = "/foo/bar/foobar.cg". */
* out_path = "/foo/bar/foobar.cg".
**/
void fill_pathname_resolve_relative(char *out_path, const char *in_refpath,
const char *in_path, size_t size);
/* Joins a directory and path together. Makes sure not to get
* two consecutive slashes between dir and path. */
/**
* fill_pathname_join:
* @out_path : output path
* @dir : directory
* @path : path
* @size : size of output path
*
* Joins a directory (@dir) and path (@path) together.
* Makes sure not to get two consecutive slashes
* between directory and path.
**/
void fill_pathname_join(char *out_path, const char *dir,
const char *path, size_t size);
/* Joins a directory and path together using the given char. */
/**
* fill_pathname_join_delim:
* @out_path : output path
* @dir : directory
* @path : path
* @delim : delimiter
* @size : size of output path
*
* Joins a directory (@dir) and path (@path) together
* using the given delimiter (@delim).
**/
void fill_pathname_join_delim(char *out_path, const char *dir,
const char *path, const char delim, size_t size);
/* Generates a short representation of path. It should only
/**
* fill_short_pathname_representation:
* @out_rep : output representation
* @in_path : input path
* @size : size of output representation
*
* Generates a short representation of path. It should only
* be used for displaying the result; the output representation is not
* binding in any meaningful way (for a normal path, this is the same as basename)
* In case of more complex URLs, this should cut everything except for
* the main image file.
*
* E.g.: "/path/to/game.img" -> game.img
* "/path/to/myarchive.7z#folder/to/game.img" -> game.img
*/
@ -177,6 +351,14 @@ void fill_pathname_expand_special(char *out_path,
void fill_pathname_abbreviate_special(char *out_path,
const char *in_path, size_t size);
/**
* fill_pathname_slash:
* @path : path
* @size : size of path
*
* Assumes path is a directory. Appends a slash
* if not already there.
**/
void fill_pathname_slash(char *path, size_t size);
#ifndef RARCH_CONSOLE