Am 14.10.2012 04:35, schrieb Nguyễn Thái Ngọc Duy:
Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
ctype.c | 18 ++++++++++++++++++
git-compat-util.h | 13 +++++++++++++
2 files changed, 31 insertions(+)
diff --git a/ctype.c b/ctype.c
index faeaf34..b4bf48a 100644
--- a/ctype.c
+++ b/ctype.c
@@ -26,6 +26,24 @@ const unsigned char sane_ctype[256] = {
/* Nothing in the 128.. range */
};
+enum {
+ CN = GIT_CNTRL,
+ PU = GIT_PUNCT,
+ XD = GIT_XDIGIT,
+};
+
+const unsigned char sane_ctype2[256] = {
+ CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, /*
0..15 */
+ CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, CN, /*
16..31 */
+ 0, PU, PU, PU, PU, PU, PU, PU, PU, PU, PU, PU, PU, PU, PU, PU, /*
32..47 */
+ XD, XD, XD, XD, XD, XD, XD, XD, XD, XD, PU, PU, PU, PU, PU, PU, /*
48..63 */
+ PU, 0, XD, 0, XD, 0, XD, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*
64..79 */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, PU, PU, PU, PU, PU, /*
80..95 */
+ PU, 0, XD, 0, XD, 0, XD, 0, 0, 0, 0, 0, 0, 0, 0, 0, /*
96..111 */
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, PU, PU, PU, PU, CN, /*
112..127 */
Shouldn't [ace] (65, 67, 69) and [ACE] (97, 99, 101) be xdigits as well?
But how about using the existing hexval_table instead, like this:
#define isxdigit(x) (hexval_table[(x)] != -1)
With that, couldn't you squeeze the other two classes into the existing
sane_type?
By the way, I'm working on a patch series for implementing a lot more character classes with table lookups. It grew out of a desire to make bad_ref_char() faster but perhaps got a bit out of hand by now; it's at 24 patches and still not finished. I'm curious how long we have until it escapes. ;-)
#define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL) +#define iscntrl(x) sane_istest2(x, GIT_CNTRL) +#define ispunct(x) sane_istest2(x, GIT_PUNCT) +#define isxdigit(x) sane_istest2(x, GIT_XDIGIT) +#define isprint(x) (isalnum(x) || isspace(x) || ispunct(x))
If a single table is used, you can do with a single table lookup by adding the bits for the component classes, like isalnum and is_regex_special do.
René -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
