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%% options
copyright owner = Dirk Krause
copyright year = 2015-xxxx
license = bsd
%% header
/** @file
String operations for path names
(dkChar characters).
*/
#ifndef DK4CONF_H_INCLUDED
#include "dk4conf.h"
#endif
#ifndef DK4TYPES_H_INCLUDED
#include "dk4types.h"
#endif
#ifndef DK4ERROR_H_INCLUDED
#include "dk4error.h"
#endif
#if DK4_HAVE_WCHAR_H
#ifndef WCHAR_H_INCLUDED
#include <wchar.h>
#define WCHAR_H_INCLUDED 1
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** Check whether a file name is an absolute path.
CRT on Windows: Not used.
@param path Path name to check.
@return 1 for absolute path, 0 for other path.
*/
int
dk4path_is_absolute(const dkChar *path);
/** Check whether a file name is a relative path.
CRT on Windows: Not used.
@param path Path name to check.
@return 1 for absolute path, 0 for other path.
*/
int
dk4path_is_relative(const dkChar *path);
/** Append path filename to path name already stored in buffer.
CRT on Windows: Optional, disabling CRT degrades performance.
@param buffer Buffer already containing a path.
@param sz Buffer size.
@param filename Relative file name to append to buffer.
@param erp Error report, may be NULL.
@return 1 on success, 0 on error.
Error codes:
- DK4_E_INVALID_ARGUMENTS<br>
if buffer or filename is NULL or sz is 0,
- DK4_E_MATH_OVERFLOW<br>
if filename is too long,
- DK4_E_MEMORY<br>
if allocation of a filename copy fails,
- DK4_E_SYNTAX<br>
if too many .. in filename,
- DK4_E_BUFFER_TOO_SMALL<br>
if buffer size is too small.
*/
int
dk4path_append(
dkChar *buffer, size_t sz, const dkChar *filename, dk4_er_t *erp
);
/** Find pointer to suffix.
CRT on Windows: Not used.
@param filename File name to find suffix for.
@param erp Error report, may be NULL.
@return Pointer to suffix dot if found, NULL otherwise.
Error codes:
- DK4_E_INVALID_ARGUMENTS<br>
if filename is NULL,
- DK4_E_NOT_FOUND<br>
if the file name does not contain a suffix.
*/
dkChar *
dk4path_get_suffix(const dkChar *filename, dk4_er_t *erp);
/** Correct file name separators from slash to backslash on Windows,
vice versa on other systems.
CRT on Windows: Not used.
@param filename File name to correct.
*/
void
dk4path_correct_sep(dkChar *filename);
/** Check whether file name needs expansion on Windows.
CRT on Windows: Not used.
@param filename File name to check.
@return 1 if expansion is necessary, 0 otherwise.
*/
int
dk4path_must_expand(const dkChar *filename);
/** Check whether filename is in the specified parent directory.
It may be equal to parent or below the parent directory.
@param filename File or directory name to check.
@param parent Parent directory.
@param erp Error report, may be NULL.
@return 1 for true, 0 for false.
Error codes:
- DK4_E_INVALID_ARGUMENTS<br>
if filename or parent is NULL,
- DK4_E_BUFFER_TOO_SMALL<br>
if filename is too long for an internal buffer.
*/
int
dk4path_is_in_subdir(const dkChar *filename,const dkChar *parent,dk4_er_t *erp);
#ifdef __cplusplus
}
#endif
%% module
#include "dk4pathd.h"
#if DK4_CHAR_SIZE > 1
#include "dk4pathw.h"
#else
#include "dk4path8.h"
#endif
#include "dk4mem.h"
#include "dk4mpl.h"
#include "dk4strd.h"
$!trace-include
int
dk4path_is_absolute(const dkChar *path)
{
#if DK4_CHAR_SIZE > 1
return (dk4pathw_is_absolute(path));
#else
return (dk4path8_is_absolute(path));
#endif
}
int
dk4path_is_relative(const dkChar *path)
{
#if DK4_CHAR_SIZE > 1
return (dk4pathw_is_relative(path));
#else
return (dk4path8_is_relative(path));
#endif
}
int
dk4path_append(
dkChar *buffer, size_t sz, const dkChar *filename, dk4_er_t *erp
)
{
#if DK4_CHAR_SIZE > 1
return (dk4pathw_append(buffer, sz, filename, erp));
#else
return (dk4path8_append(buffer, sz, filename, erp));
#endif
}
dkChar *
dk4path_get_suffix(const dkChar *filename, dk4_er_t *erp)
{
#if DK4_CHAR_SIZE > 1
return (dk4pathw_get_suffix(filename, erp));
#else
return (dk4path8_get_suffix(filename, erp));
#endif
}
void
dk4path_correct_sep(dkChar *filename)
{
#if DK4_CHAR_SIZE > 1
dk4pathw_correct_sep(filename);
#else
dk4path8_correct_sep(filename);
#endif
}
int
dk4path_must_expand(const dkChar *filename)
{
#if DK4_CHAR_SIZE > 1
return (dk4pathw_must_expand(filename));
#else
return (dk4path8_must_expand(filename));
#endif
}
int
dk4path_is_in_subdir(const dkChar *filename,const dkChar *parent,dk4_er_t *erp)
{
dkChar buf[DK4_MAX_PATH];
size_t szf;
size_t szp;
int back = 0;
$? "+ dk4path_is_in_subdir f=\"%!ds\" p=\"%!ds\"", filename, parent
if ((NULL != filename) && (NULL != parent)) {
if (0 != dk4str_cpy_s(buf, DK4_SIZEOF(buf,dkChar), filename, erp)) {
szf = dk4str_len(buf);
szp = dk4str_len(parent);
if (szf > szp) { $? ". filename larger than parent"
#if DK4_ON_WINDOWS
if (buf[szp] == dkT('\\'))
#else
if (buf[szp] == dkT('/'))
#endif
{ $? ". separator at right place"
buf[szp] = dkT('\0');
if (0 == dk4str_pathcmp(buf, parent)) {
back = 1; $? ". match"
}
#if DK4_ON_WINDOWS
buf[szp] = dkT('\\');
#else
buf[szp] = dkT('/');
#endif
}
} else {
if (szf == szp) { $? ". equal lengths"
if (0 == dk4str_pathcmp(buf, parent)) {
back = 1; $? ". match"
}
}
}
}
} else {
dk4error_set_simple_error_code(erp, DK4_E_INVALID_ARGUMENTS);
} $? "- dk4path_is_in_subdir %d", back
return back;
}
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