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annotate mercurial/cext/charencode.h @ 39883:3e896b51aa5d

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storageutil: move metadata parsing and packing from revlog (API) Parsing and writing of revision text metadata is likely identical across storage backends. Let's move the code out of revlog so we don't need to import the revlog module in order to use it. Differential Revision: https://phab.mercurial-scm.org/D4754
author Gregory Szorc <gregory.szorc@gmail.com>
date Mon, 24 Sep 2018 14:31:31 -0700
parents 81199632fa42
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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4494fb02d549 util.h: Utility macros for handling different Python APIs.
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1 /*
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2 charencode.h - miscellaneous character encoding
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4494fb02d549 util.h: Utility macros for handling different Python APIs.
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3
4494fb02d549 util.h: Utility macros for handling different Python APIs.
Renato Cunha <renatoc@gmail.com>
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4 This software may be used and distributed according to the terms of
4494fb02d549 util.h: Utility macros for handling different Python APIs.
Renato Cunha <renatoc@gmail.com>
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5 the GNU General Public License, incorporated herein by reference.
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6 */
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7
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8 #ifndef _HG_CHARENCODE_H_
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9 #define _HG_CHARENCODE_H_
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10
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11 #include <Python.h>
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12 #include "compat.h"
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13
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14 /* This should be kept in sync with normcasespecs in encoding.py. */
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15 enum normcase_spec {
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16 NORMCASE_LOWER = -1,
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17 NORMCASE_UPPER = 1,
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18 NORMCASE_OTHER = 0
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19 };
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20
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21 PyObject *unhexlify(const char *str, Py_ssize_t len);
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22 PyObject *isasciistr(PyObject *self, PyObject *args);
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23 PyObject *asciilower(PyObject *self, PyObject *args);
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24 PyObject *asciiupper(PyObject *self, PyObject *args);
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25 PyObject *make_file_foldmap(PyObject *self, PyObject *args);
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26 PyObject *jsonescapeu8fast(PyObject *self, PyObject *args);
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27
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28 /* clang-format off */
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29 static const int8_t hextable[256] = {
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30 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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31 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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32 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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33 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, /* 0-9 */
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34 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* A-F */
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35 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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36 -1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* a-f */
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37 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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38 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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39 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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40 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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41 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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42 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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43 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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44 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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45 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
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46 };
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47 /* clang-format on */
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48
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49 static inline int hexdigit(const char *p, Py_ssize_t off)
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50 {
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51 int8_t val = hextable[(unsigned char)p[off]];
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52
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53 if (val >= 0) {
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54 return val;
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55 }
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56
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57 PyErr_SetString(PyExc_ValueError, "input contains non-hex character");
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58 return 0;
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59 }
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60
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61 #endif /* _HG_CHARENCODE_H_ */