/* $NetBSD: chartype.h,v 1.23 2016/02/24 17:20:01 christos Exp $ */ /*- * Copyright (c) 2009 The NetBSD Foundation, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _h_chartype_f #define _h_chartype_f #ifdef WIDECHAR /* Ideally we should also test the value of the define to see if it * supports non-BMP code points without requiring UTF-16, but nothing * seems to actually advertise this properly, despite Unicode 3.1 having * been around since 2001... */ #if !defined(__NetBSD__) && !defined(__sun) && !(defined(__APPLE__) && defined(__MACH__)) && !defined(__OpenBSD__) && !defined(__FreeBSD__) #ifndef __STDC_ISO_10646__ /* In many places it is assumed that the first 127 code points are ASCII * compatible, so ensure wchar_t indeed does ISO 10646 and not some other * funky encoding that could break us in weird and wonderful ways. */ #error wchar_t must store ISO 10646 characters #endif #endif /* Oh for a with char32_t and __STDC_UTF_32__ in it... * ref: ISO/IEC DTR 19769 */ #if WCHAR_MAX < INT32_MAX #warning Build environment does not support non-BMP characters #endif #define ct_wctob wctob #define ct_wctomb wctomb #define ct_wctomb_reset wctomb(0,0) #define ct_wcstombs wcstombs #define ct_mbstowcs mbstowcs #define Char wchar_t #define FUN(prefix,rest) prefix ## _w ## rest #define FUNW(type) type ## _w #define TYPE(type) type ## W #define FSTR "%ls" #define STR(x) L ## x #define UC(c) c #define Isalpha(x) iswalpha(x) #define Isalnum(x) iswalnum(x) #define Isgraph(x) iswgraph(x) #define Isspace(x) iswspace(x) #define Isdigit(x) iswdigit(x) #define Iscntrl(x) iswcntrl(x) #define Isprint(x) iswprint(x) #define Isupper(x) iswupper(x) #define Islower(x) iswlower(x) #define Toupper(x) towupper(x) #define Tolower(x) towlower(x) #define IsASCII(x) (x < 0x100) #define Strlen(x) wcslen(x) #define Strchr(s,c) wcschr(s,c) #define Strrchr(s,c) wcsrchr(s,c) #define Strstr(s,v) wcsstr(s,v) #define Strdup(x) wcsdup(x) #define Strcpy(d,s) wcscpy(d,s) #define Strncpy(d,s,n) wcsncpy(d,s,n) #define Strncat(d,s,n) wcsncat(d,s,n) #define Strcmp(s,v) wcscmp(s,v) #define Strncmp(s,v,n) wcsncmp(s,v,n) #define Strcspn(s,r) wcscspn(s,r) #define Strtol(p,e,b) wcstol(p,e,b) static inline int Width(wchar_t c) { int w = wcwidth(c); return w < 0 ? 0 : w; } #else /* NARROW */ #define ct_wctob(w) ((int)(w)) #define ct_wctomb error #define ct_wctomb_reset #define ct_wcstombs(a, b, c) (strncpy(a, b, c), strlen(a)) #define ct_mbstowcs(a, b, c) (strncpy(a, b, c), strlen(a)) #define Char char #define FUN(prefix,rest) prefix ## _ ## rest #define FUNW(type) type #define TYPE(type) type #define FSTR "%s" #define STR(x) x #define UC(c) (unsigned char)(c) #define Isalpha(x) isalpha((unsigned char)x) #define Isalnum(x) isalnum((unsigned char)x) #define Isgraph(x) isgraph((unsigned char)x) #define Isspace(x) isspace((unsigned char)x) #define Isdigit(x) isdigit((unsigned char)x) #define Iscntrl(x) iscntrl((unsigned char)x) #define Isprint(x) isprint((unsigned char)x) #define Isupper(x) isupper((unsigned char)x) #define Islower(x) islower((unsigned char)x) #define Toupper(x) toupper((unsigned char)x) #define Tolower(x) tolower((unsigned char)x) #define IsASCII(x) isascii((unsigned char)x) #define Strlen(x) strlen(x) #define Strchr(s,c) strchr(s,c) #define Strrchr(s,c) strrchr(s,c) #define Strstr(s,v) strstr(s,v) #define Strdup(x) strdup(x) #define Strcpy(d,s) strcpy(d,s) #define Strncpy(d,s,n) strncpy(d,s,n) #define Strncat(d,s,n) strncat(d,s,n) #define Strcmp(s,v) strcmp(s,v) #define Strncmp(s,v,n) strncmp(s,v,n) #define Strcspn(s,r) strcspn(s,r) #define Strtol(p,e,b) strtol(p,e,b) #define Width(c) 1 #endif #ifdef WIDECHAR /* * Conversion buffer */ typedef struct ct_buffer_t { char *cbuff; size_t csize; Char *wbuff; size_t wsize; } ct_buffer_t; #define ct_encode_string __ct_encode_string /* Encode a wide-character string and return the UTF-8 encoded result. */ public char *ct_encode_string(const Char *, ct_buffer_t *); #define ct_decode_string __ct_decode_string /* Decode a (multi)?byte string and return the wide-character string result. */ public Char *ct_decode_string(const char *, ct_buffer_t *); /* Decode a (multi)?byte argv string array. * The pointer returned must be free()d when done. */ protected Char **ct_decode_argv(int, const char *[], ct_buffer_t *); /* Resizes the conversion buffer(s) if needed. */ protected int ct_conv_cbuff_resize(ct_buffer_t *, size_t); protected int ct_conv_wbuff_resize(ct_buffer_t *, size_t); protected ssize_t ct_encode_char(char *, size_t, Char); protected size_t ct_enc_width(Char); #define ct_free_argv(s) el_free(s) #else #define ct_encode_string(s, b) (s) #define ct_decode_string(s, b) (s) #define ct_decode_argv(l, s, b) (s) #define ct_conv_cbuff_resize(b, s) ((s) == (0)) #define ct_conv_wbuff_resize(b, s) ((s) == (0)) #define ct_encode_char(d, l, s) (*d = s, 1) #define ct_free_argv(s) #endif #ifndef NARROWCHAR /* Encode a characted into the destination buffer, provided there is sufficent * buffer space available. Returns the number of bytes used up (zero if the * character cannot be encoded, -1 if there was not enough space available). */ /* The maximum buffer size to hold the most unwieldly visual representation, * in this case \U+nnnnn. */ #define VISUAL_WIDTH_MAX ((size_t)8) /* The terminal is thought of in terms of X columns by Y lines. In the cases * where a wide character takes up more than one column, the adjacent * occupied column entries will contain this faux character. */ #define MB_FILL_CHAR ((Char)-1) /* Visual width of character c, taking into account ^? , \0177 and \U+nnnnn * style visual expansions. */ protected int ct_visual_width(Char); /* Turn the given character into the appropriate visual format, matching * the width given by ct_visual_width(). Returns the number of characters used * up, or -1 if insufficient space. Buffer length is in count of Char's. */ protected ssize_t ct_visual_char(Char *, size_t, Char); /* Convert the given string into visual format, using the ct_visual_char() * function. Uses a static buffer, so not threadsafe. */ protected const Char *ct_visual_string(const Char *); /* printable character, use ct_visual_width() to find out display width */ #define CHTYPE_PRINT ( 0) /* control character found inside the ASCII portion of the charset */ #define CHTYPE_ASCIICTL (-1) /* a \t */ #define CHTYPE_TAB (-2) /* a \n */ #define CHTYPE_NL (-3) /* non-printable character */ #define CHTYPE_NONPRINT (-4) /* classification of character c, as one of the above defines */ protected int ct_chr_class(Char c); #endif size_t ct_mbrtowc(wchar_t *, const char *, size_t); #endif /* _chartype_f */