wctype.cpp revision 063e20c26943ec82ef1d53a544545e79054e93d3 
1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *  * Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 *  * Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in
12 *    the documentation and/or other materials provided with the
13 *    distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29#include <ctype.h>
30#include <stdlib.h>
31#include <string.h>
32#include <wchar.h>
33
34// TODO: these only work for the ASCII range; rewrite to dlsym icu4c? http://b/14499654
35
36int iswalnum(wint_t wc) { return isalnum(wc); }
37int iswalpha(wint_t wc) { return isalpha(wc); }
38int iswblank(wint_t wc) { return isblank(wc); }
39int iswcntrl(wint_t wc) { return iscntrl(wc); }
40int iswdigit(wint_t wc) { return isdigit(wc); }
41int iswgraph(wint_t wc) { return isgraph(wc); }
42int iswlower(wint_t wc) { return islower(wc); }
43int iswprint(wint_t wc) { return isprint(wc); }
44int iswpunct(wint_t wc) { return ispunct(wc); }
45int iswspace(wint_t wc) { return isspace(wc); }
46int iswupper(wint_t wc) { return isupper(wc); }
47int iswxdigit(wint_t wc) { return isxdigit(wc); }
48
49int iswctype(wint_t wc, wctype_t char_class) {
50  switch (char_class) {
51    case WC_TYPE_ALNUM: return iswalnum(wc);
52    case WC_TYPE_ALPHA: return iswalpha(wc);
53    case WC_TYPE_BLANK: return iswblank(wc);
54    case WC_TYPE_CNTRL: return iswcntrl(wc);
55    case WC_TYPE_DIGIT: return iswdigit(wc);
56    case WC_TYPE_GRAPH: return iswgraph(wc);
57    case WC_TYPE_LOWER: return iswlower(wc);
58    case WC_TYPE_PRINT: return iswprint(wc);
59    case WC_TYPE_PUNCT: return iswpunct(wc);
60    case WC_TYPE_SPACE: return iswspace(wc);
61    case WC_TYPE_UPPER: return iswupper(wc);
62    case WC_TYPE_XDIGIT: return iswxdigit(wc);
63    default: return 0;
64  }
65}
66
67wint_t towlower(wint_t wc) { return tolower(wc); }
68wint_t towupper(wint_t wc) { return toupper(wc); }
69
70wctype_t wctype(const char* property) {
71  static const char* const  properties[WC_TYPE_MAX] = {
72    "<invalid>",
73    "alnum", "alpha", "blank", "cntrl", "digit", "graph",
74    "lower", "print", "punct", "space", "upper", "xdigit"
75  };
76  for (size_t i = 0; i < WC_TYPE_MAX; ++i) {
77    if (!strcmp(properties[i], property)) {
78      return static_cast<wctype_t>(i);
79    }
80  }
81  return static_cast<wctype_t>(0);
82}
83
84int wcwidth(wchar_t wc) {
85  return (wc > 0);
86}
87