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merge duplicated path_ functions

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handle backslashes, which is out of convention, but safer, as practically paths may contain them in many spots
This commit is contained in:
Garux
2021-01-21 08:53:34 +03:00
parent 15e4b8e850
commit 7fc079c658
4 changed files with 38 additions and 96 deletions
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58
libs/os/path.h
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@@ -113,32 +113,38 @@ inline const char* path_remove_directory( const char* path ){
return "";
}
inline bool path_separator( const char c ){
return c == '/' || c == '\\';
}
/// \brief Returns a pointer to the first character of the filename component of \p path.
/// O(n)
inline const char* path_get_filename_start( const char* path ){
{
const char* last_forward_slash = strrchr( path, '/' );
if ( last_forward_slash != 0 ) {
return last_forward_slash + 1;
}
}
const char *src = path + string_length( path );
// not strictly necessary,since paths should not contain '\'
{
const char* last_backward_slash = strrchr( path, '\\' );
if ( last_backward_slash != 0 ) {
return last_backward_slash + 1;
}
while ( src != path && !path_separator( src[-1] ) ){
--src;
}
return src;
}
return path;
inline char* path_get_filename_start( char* path ){
return const_cast<char*>( path_get_filename_start( const_cast<const char*>( path ) ) );
}
/// \brief Returns a pointer to the character after the end of the filename component of \p path - either the extension separator or the terminating null character.
/// O(n)
inline const char* path_get_filename_base_end( const char* path ){
const char* last_period = strrchr( path_get_filename_start( path ), '.' );
return ( last_period != 0 ) ? last_period : path + string_length( path );
const char *end = path + string_length( path );
const char *src = end;
while ( src != path && !path_separator( *--src ) ){
if( *src == '.' )
return src;
}
return end;
}
inline char* path_get_filename_base_end( char* path ){
return const_cast<char*>( path_get_filename_base_end( const_cast<const char*>( path ) ) );
}
/// \brief Returns the length of the filename component (not including extension) of \p path.
@@ -157,14 +163,20 @@ inline const char* path_make_relative( const char* path, const char* base ){
return path;
}
/// \brief Returns a pointer to the first character of the file extension of \p path, or "" if not found.
/// O(n)
/// \brief Returns a pointer to the first character of the file extension of \p path, or to terminating null character if not found.
inline const char* path_get_extension( const char* path ){
const char* last_period = strrchr( path_get_filename_start( path ), '.' );
if ( last_period != 0 ) {
return ++last_period;
const char *end = path + string_length( path );
const char *src = end;
while ( src != path && !path_separator( *--src ) ){
if( *src == '.' )
return src + 1;
}
return "";
return end;
}
inline char* path_get_extension( char* path ){
return const_cast<char*>( path_get_extension( const_cast<const char*>( path ) ) );
}
/// \brief Returns true if \p extension is of the same type as \p other.