1 /*
2 charencode.h - miscellaneous character encoding
3
4 This software may be used and distributed according to the terms of
5 the GNU General Public License, incorporated herein by reference.
6 */
7
8 #ifndef _HG_CHARENCODE_H_
9 #define _HG_CHARENCODE_H_
10
11 #include <Python.h>
12 #include "compat.h"
13
14 /* This should be kept in sync with normcasespecs in encoding.py. */
15 enum normcase_spec {
16 NORMCASE_LOWER = -1,
17 NORMCASE_UPPER = 1,
18 NORMCASE_OTHER = 0
19 };
20
21 PyObject *unhexlify(const char *str, Py_ssize_t len);
22 PyObject *isasciistr(PyObject *self, PyObject *args);
23 PyObject *asciilower(PyObject *self, PyObject *args);
24 PyObject *asciiupper(PyObject *self, PyObject *args);
25 PyObject *make_file_foldmap(PyObject *self, PyObject *args);
26 PyObject *jsonescapeu8fast(PyObject *self, PyObject *args);
27
28 /* clang-format off */
29 static const int8_t hextable[256] = {
30 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
31 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
32 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
33 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, /* 0-9 */
34 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* A-F */
35 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
36 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* a-f */
37 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
38 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
39 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
40 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
41 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
42 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
43 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
44 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
45 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
46 };
47 /* clang-format on */
48
hexdigit(const char * p,Py_ssize_t off)49 static inline int hexdigit(const char *p, Py_ssize_t off)
50 {
51 int8_t val = hextable[(unsigned char)p[off]];
52
53 if (val >= 0) {
54 return val;
55 }
56
57 PyErr_SetString(PyExc_ValueError, "input contains non-hex character");
58 return 0;
59 }
60
61 #endif /* _HG_CHARENCODE_H_ */
62