summaryrefslogtreecommitdiff
path: root/compat/win32
diff options
context:
space:
mode:
Diffstat (limited to 'compat/win32')
-rw-r--r--compat/win32/path-utils.c24
-rw-r--r--compat/win32/path-utils.h5
2 files changed, 27 insertions, 2 deletions
diff --git a/compat/win32/path-utils.c b/compat/win32/path-utils.c
index d9d3641de8..ebf2f12eb6 100644
--- a/compat/win32/path-utils.c
+++ b/compat/win32/path-utils.c
@@ -1,5 +1,29 @@
#include "../../git-compat-util.h"
+int win32_has_dos_drive_prefix(const char *path)
+{
+ int i;
+
+ /*
+ * Does it start with an ASCII letter (i.e. highest bit not set),
+ * followed by a colon?
+ */
+ if (!(0x80 & (unsigned char)*path))
+ return *path && path[1] == ':' ? 2 : 0;
+
+ /*
+ * While drive letters must be letters of the English alphabet, it is
+ * possible to assign virtually _any_ Unicode character via `subst` as
+ * a drive letter to "virtual drives". Even `1`, or `ä`. Or fun stuff
+ * like this:
+ *
+ * subst ֍: %USERPROFILE%\Desktop
+ */
+ for (i = 1; i < 4 && (0x80 & (unsigned char)path[i]); i++)
+ ; /* skip first UTF-8 character */
+ return path[i] == ':' ? i + 1 : 0;
+}
+
int win32_skip_dos_drive_prefix(char **path)
{
int ret = has_dos_drive_prefix(*path);
diff --git a/compat/win32/path-utils.h b/compat/win32/path-utils.h
index 8ed062a6b7..f2e70872cd 100644
--- a/compat/win32/path-utils.h
+++ b/compat/win32/path-utils.h
@@ -1,8 +1,9 @@
#ifndef WIN32_PATH_UTILS_H
#define WIN32_PATH_UTILS_H
-#define has_dos_drive_prefix(path) \
- (isalpha(*(path)) && (path)[1] == ':' ? 2 : 0)
+int win32_has_dos_drive_prefix(const char *path);
+#define has_dos_drive_prefix win32_has_dos_drive_prefix
+
int win32_skip_dos_drive_prefix(char **path);
#define skip_dos_drive_prefix win32_skip_dos_drive_prefix
static inline int win32_is_dir_sep(int c)