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Traditional, UNC, and Device Is Absolute?

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This commit is contained in:
Reckordp
2020-03-08 10:53:18 +07:00
parent 66c44b8568
commit ab1465d9d5
1 changed files with 18 additions and 14 deletions
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mrbgems/mruby-io/src/file.c
+18 -14
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@@ -281,52 +281,56 @@ mrb_file__getwd(mrb_state *mrb, mrb_value klass)
}
#ifdef _WIN32
#define IS_FILESEP(x) (x == FILE_SEPARATOR || x == FILE_ALT_SEPARATOR)
#define IS_VOLSEP(x) (x == VOLUME_SEPARATOR)
#define IS_FILESEP(x) (x == (*(char*)(FILE_SEPARATOR)) || x == (*(char*)(FILE_ALT_SEPARATOR)))
#define IS_VOLSEP(x) (x == (*(char*)(VOLUME_SEPARATOR)))
#define IS_DEVICEID(x) (x == '.' || x == '?')
#define CHECK_UNCDEV_PATH (IS_FILESEP(path[0]) && IS_FILESEP(path[1]))
static int
is_absolute_traditional_path(const char *path, int len)
{
if (len < 3) return 0;
if (IS_FILESEP(path[0])) return 1;
return (ISALPHA(path[0]) && IS_VOLSEP(path[1]) && IS_FILESEP(path[2]));
}
static int
is_aboslute_unc_path(const char *path, int len) {
if (len < 2) return 0;
return (IS_FILESEP(path[0]) && IS_FILESEP(path[1]));
return (CHECK_UNCDEV_PATH && !IS_DEVICEID(path[2]));
}
static int
is_absolute_device_path(const char *path, int len) {
if (len < 4) return 0;
return (is_aboslute_unc_path(path, len) && IS_DEVICEID(path[2]) && IS_FILESEP(path[3]));
return (CHECK_UNCDEV_PATH && IS_DEVICEID(path[2]) && IS_FILESEP(path[3]));
}
static int
mrb_file_is_absolute_path(const char *path, int len)
{
return (
is_absolute_traditional_path(path, len) ||
is_aboslute_unc_path(path, len) ||
is_absolute_device_path(path, len)
);
if (IS_FILESEP(path[0])) return 1;
if (len > 0)
return (
is_absolute_traditional_path(path, len) ||
is_aboslute_unc_path(path, len) ||
is_absolute_device_path(path, len)
);
else
return 0;
}
#undef IS_FILESEP
#undef IS_VOLSEP
#undef IS_DEVICEID
#undef CHECK_UNCDEV_PATH
#else
static int
mrb_file_is_absolute_path(const char *path)
{
#define IS_FILESEP(x) (x == FILE_SEPARATOR)
return IS_FILESEP(path[0]);
#undef IS_FILESEP
#endif
return (path[0] == *(char*)(FILE_SEPARATOR));
}
#endif
static mrb_value
mrb_file__gethome(mrb_state *mrb, mrb_value klass)