1 /* $NetBSD: chartype.h,v 1.23 2016/02/24 17:20:01 christos Exp $ */
4 * Copyright (c) 2009 The NetBSD Foundation, Inc.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
37 /* Ideally we should also test the value of the define to see if it
38 * supports non-BMP code points without requiring UTF-16, but nothing
39 * seems to actually advertise this properly, despite Unicode 3.1 having
40 * been around since 2001... */
41 #if !defined(__NetBSD__) && !defined(__sun) && !(defined(__APPLE__) && defined(__MACH__)) && !defined(__OpenBSD__) && !defined(__FreeBSD__)
42 #ifndef __STDC_ISO_10646__
43 /* In many places it is assumed that the first 127 code points are ASCII
44 * compatible, so ensure wchar_t indeed does ISO 10646 and not some other
45 * funky encoding that could break us in weird and wonderful ways. */
46 #error wchar_t must store ISO 10646 characters
50 /* Oh for a <uchar.h> with char32_t and __STDC_UTF_32__ in it...
51 * ref: ISO/IEC DTR 19769
53 #if WCHAR_MAX < INT32_MAX
54 #warning Build environment does not support non-BMP characters
57 #define ct_wctob wctob
58 #define ct_wctomb wctomb
59 #define ct_wctomb_reset wctomb(0,0)
60 #define ct_wcstombs wcstombs
61 #define ct_mbstowcs mbstowcs
64 #define FUN(prefix,rest) prefix ## _w ## rest
65 #define FUNW(type) type ## _w
66 #define TYPE(type) type ## W
70 #define Isalpha(x) iswalpha(x)
71 #define Isalnum(x) iswalnum(x)
72 #define Isgraph(x) iswgraph(x)
73 #define Isspace(x) iswspace(x)
74 #define Isdigit(x) iswdigit(x)
75 #define Iscntrl(x) iswcntrl(x)
76 #define Isprint(x) iswprint(x)
78 #define Isupper(x) iswupper(x)
79 #define Islower(x) iswlower(x)
80 #define Toupper(x) towupper(x)
81 #define Tolower(x) towlower(x)
83 #define IsASCII(x) (x < 0x100)
85 #define Strlen(x) wcslen(x)
86 #define Strchr(s,c) wcschr(s,c)
87 #define Strrchr(s,c) wcsrchr(s,c)
88 #define Strstr(s,v) wcsstr(s,v)
89 #define Strdup(x) wcsdup(x)
90 #define Strcpy(d,s) wcscpy(d,s)
91 #define Strncpy(d,s,n) wcsncpy(d,s,n)
92 #define Strncat(d,s,n) wcsncat(d,s,n)
94 #define Strcmp(s,v) wcscmp(s,v)
95 #define Strncmp(s,v,n) wcsncmp(s,v,n)
96 #define Strcspn(s,r) wcscspn(s,r)
98 #define Strtol(p,e,b) wcstol(p,e,b)
104 return w < 0 ? 0 : w;
109 #define ct_wctob(w) ((int)(w))
110 #define ct_wctomb error
111 #define ct_wctomb_reset
112 #define ct_wcstombs(a, b, c) (strncpy(a, b, c), strlen(a))
113 #define ct_mbstowcs(a, b, c) (strncpy(a, b, c), strlen(a))
116 #define FUN(prefix,rest) prefix ## _ ## rest
117 #define FUNW(type) type
118 #define TYPE(type) type
121 #define UC(c) (unsigned char)(c)
123 #define Isalpha(x) isalpha((unsigned char)x)
124 #define Isalnum(x) isalnum((unsigned char)x)
125 #define Isgraph(x) isgraph((unsigned char)x)
126 #define Isspace(x) isspace((unsigned char)x)
127 #define Isdigit(x) isdigit((unsigned char)x)
128 #define Iscntrl(x) iscntrl((unsigned char)x)
129 #define Isprint(x) isprint((unsigned char)x)
131 #define Isupper(x) isupper((unsigned char)x)
132 #define Islower(x) islower((unsigned char)x)
133 #define Toupper(x) toupper((unsigned char)x)
134 #define Tolower(x) tolower((unsigned char)x)
136 #define IsASCII(x) isascii((unsigned char)x)
138 #define Strlen(x) strlen(x)
139 #define Strchr(s,c) strchr(s,c)
140 #define Strrchr(s,c) strrchr(s,c)
141 #define Strstr(s,v) strstr(s,v)
142 #define Strdup(x) strdup(x)
143 #define Strcpy(d,s) strcpy(d,s)
144 #define Strncpy(d,s,n) strncpy(d,s,n)
145 #define Strncat(d,s,n) strncat(d,s,n)
147 #define Strcmp(s,v) strcmp(s,v)
148 #define Strncmp(s,v,n) strncmp(s,v,n)
149 #define Strcspn(s,r) strcspn(s,r)
151 #define Strtol(p,e,b) strtol(p,e,b)
162 typedef struct ct_buffer_t {
169 #define ct_encode_string __ct_encode_string
170 /* Encode a wide-character string and return the UTF-8 encoded result. */
171 public char *ct_encode_string(const Char *, ct_buffer_t *);
173 #define ct_decode_string __ct_decode_string
174 /* Decode a (multi)?byte string and return the wide-character string result. */
175 public Char *ct_decode_string(const char *, ct_buffer_t *);
177 /* Decode a (multi)?byte argv string array.
178 * The pointer returned must be free()d when done. */
179 protected Char **ct_decode_argv(int, const char *[], ct_buffer_t *);
181 /* Resizes the conversion buffer(s) if needed. */
182 protected int ct_conv_cbuff_resize(ct_buffer_t *, size_t);
183 protected int ct_conv_wbuff_resize(ct_buffer_t *, size_t);
184 protected ssize_t ct_encode_char(char *, size_t, Char);
185 protected size_t ct_enc_width(Char);
187 #define ct_free_argv(s) el_free(s)
190 #define ct_encode_string(s, b) (s)
191 #define ct_decode_string(s, b) (s)
192 #define ct_decode_argv(l, s, b) (s)
193 #define ct_conv_cbuff_resize(b, s) ((s) == (0))
194 #define ct_conv_wbuff_resize(b, s) ((s) == (0))
195 #define ct_encode_char(d, l, s) (*d = s, 1)
196 #define ct_free_argv(s)
200 /* Encode a characted into the destination buffer, provided there is sufficent
201 * buffer space available. Returns the number of bytes used up (zero if the
202 * character cannot be encoded, -1 if there was not enough space available). */
204 /* The maximum buffer size to hold the most unwieldly visual representation,
205 * in this case \U+nnnnn. */
206 #define VISUAL_WIDTH_MAX ((size_t)8)
208 /* The terminal is thought of in terms of X columns by Y lines. In the cases
209 * where a wide character takes up more than one column, the adjacent
210 * occupied column entries will contain this faux character. */
211 #define MB_FILL_CHAR ((Char)-1)
213 /* Visual width of character c, taking into account ^? , \0177 and \U+nnnnn
214 * style visual expansions. */
215 protected int ct_visual_width(Char);
217 /* Turn the given character into the appropriate visual format, matching
218 * the width given by ct_visual_width(). Returns the number of characters used
219 * up, or -1 if insufficient space. Buffer length is in count of Char's. */
220 protected ssize_t ct_visual_char(Char *, size_t, Char);
222 /* Convert the given string into visual format, using the ct_visual_char()
223 * function. Uses a static buffer, so not threadsafe. */
224 protected const Char *ct_visual_string(const Char *);
227 /* printable character, use ct_visual_width() to find out display width */
228 #define CHTYPE_PRINT ( 0)
229 /* control character found inside the ASCII portion of the charset */
230 #define CHTYPE_ASCIICTL (-1)
232 #define CHTYPE_TAB (-2)
234 #define CHTYPE_NL (-3)
235 /* non-printable character */
236 #define CHTYPE_NONPRINT (-4)
237 /* classification of character c, as one of the above defines */
238 protected int ct_chr_class(Char c);
241 size_t ct_mbrtowc(wchar_t *, const char *, size_t);
244 #endif /* _chartype_f */