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Diffstat (limited to 'gl/mbchar.h')
| -rw-r--r-- | gl/mbchar.h | 353 |
1 files changed, 0 insertions, 353 deletions
diff --git a/gl/mbchar.h b/gl/mbchar.h deleted file mode 100644 index f3e28ef5..00000000 --- a/gl/mbchar.h +++ /dev/null @@ -1,353 +0,0 @@ -/* Multibyte character data type. - Copyright (C) 2001, 2005-2006 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ - -/* Written by Bruno Haible <bruno@clisp.org>. */ - -/* A multibyte character is a short subsequence of a char* string, - representing a single wide character. - - We use multibyte characters instead of wide characters because of - the following goals: - 1) correct multibyte handling, i.e. operate according to the LC_CTYPE - locale, - 2) ease of maintenance, i.e. the maintainer needs not know all details - of the ISO C 99 standard, - 3) don't fail grossly if the input is not in the encoding set by the - locale, because often different encodings are in use in the same - countries (ISO-8859-1/UTF-8, EUC-JP/Shift_JIS, ...), - 4) fast in the case of ASCII characters, - 5) portability, i.e. don't make unportable assumptions about wchar_t. - - Multibyte characters are only accessed through the mb* macros. - - mb_ptr (mbc) - return a pointer to the beginning of the multibyte sequence. - - mb_len (mbc) - returns the number of bytes occupied by the multibyte sequence. - Always > 0. - - mb_iseq (mbc, sc) - returns true if mbc is the standard ASCII character sc. - - mb_isnul (mbc) - returns true if mbc is the nul character. - - mb_cmp (mbc1, mbc2) - returns a positive, zero, or negative value depending on whether mbc1 - sorts after, same or before mbc2. - - mb_casecmp (mbc1, mbc2) - returns a positive, zero, or negative value depending on whether mbc1 - sorts after, same or before mbc2, modulo upper/lowercase conversion. - - mb_equal (mbc1, mbc2) - returns true if mbc1 and mbc2 are equal. - - mb_caseequal (mbc1, mbc2) - returns true if mbc1 and mbc2 are equal modulo upper/lowercase conversion. - - mb_isalnum (mbc) - returns true if mbc is alphanumeric. - - mb_isalpha (mbc) - returns true if mbc is alphabetic. - - mb_isascii(mbc) - returns true if mbc is plain ASCII. - - mb_isblank (mbc) - returns true if mbc is a blank. - - mb_iscntrl (mbc) - returns true if mbc is a control character. - - mb_isdigit (mbc) - returns true if mbc is a decimal digit. - - mb_isgraph (mbc) - returns true if mbc is a graphic character. - - mb_islower (mbc) - returns true if mbc is lowercase. - - mb_isprint (mbc) - returns true if mbc is a printable character. - - mb_ispunct (mbc) - returns true if mbc is a punctuation character. - - mb_isspace (mbc) - returns true if mbc is a space character. - - mb_isupper (mbc) - returns true if mbc is uppercase. - - mb_isxdigit (mbc) - returns true if mbc is a hexadecimal digit. - - mb_width (mbc) - returns the number of columns on the output device occupied by mbc. - Always >= 0. - - mb_putc (mbc, stream) - outputs mbc on stream, a byte oriented FILE stream opened for output. - - mb_setascii (&mbc, sc) - assigns the standard ASCII character sc to mbc. - - mb_copy (&destmbc, &srcmbc) - copies srcmbc to destmbc. - - Here are the function prototypes of the macros. - - extern const char * mb_ptr (const mbchar_t mbc); - extern size_t mb_len (const mbchar_t mbc); - extern bool mb_iseq (const mbchar_t mbc, char sc); - extern bool mb_isnul (const mbchar_t mbc); - extern int mb_cmp (const mbchar_t mbc1, const mbchar_t mbc2); - extern int mb_casecmp (const mbchar_t mbc1, const mbchar_t mbc2); - extern bool mb_equal (const mbchar_t mbc1, const mbchar_t mbc2); - extern bool mb_caseequal (const mbchar_t mbc1, const mbchar_t mbc2); - extern bool mb_isalnum (const mbchar_t mbc); - extern bool mb_isalpha (const mbchar_t mbc); - extern bool mb_isascii (const mbchar_t mbc); - extern bool mb_isblank (const mbchar_t mbc); - extern bool mb_iscntrl (const mbchar_t mbc); - extern bool mb_isdigit (const mbchar_t mbc); - extern bool mb_isgraph (const mbchar_t mbc); - extern bool mb_islower (const mbchar_t mbc); - extern bool mb_isprint (const mbchar_t mbc); - extern bool mb_ispunct (const mbchar_t mbc); - extern bool mb_isspace (const mbchar_t mbc); - extern bool mb_isupper (const mbchar_t mbc); - extern bool mb_isxdigit (const mbchar_t mbc); - extern int mb_width (const mbchar_t mbc); - extern void mb_putc (const mbchar_t mbc, FILE *stream); - extern void mb_setascii (mbchar_t *new, char sc); - extern void mb_copy (mbchar_t *new, const mbchar_t *old); - */ - -#ifndef _MBCHAR_H -#define _MBCHAR_H 1 - -#include <stdbool.h> -#include <string.h> - -/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before - <wchar.h>. - BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before - <wchar.h>. */ -#include <stdio.h> -#include <time.h> -#include <wchar.h> -#include <wctype.h> - -#include "wcwidth.h" - -#define MBCHAR_BUF_SIZE 24 - -struct mbchar -{ - const char *ptr; /* pointer to current character */ - size_t bytes; /* number of bytes of current character, > 0 */ - bool wc_valid; /* true if wc is a valid wide character */ - wchar_t wc; /* if wc_valid: the current character */ - char buf[MBCHAR_BUF_SIZE]; /* room for the bytes, used for file input only */ -}; - -/* EOF (not a real character) is represented with bytes = 0 and - wc_valid = false. */ - -typedef struct mbchar mbchar_t; - -/* Access the current character. */ -#define mb_ptr(mbc) ((mbc).ptr) -#define mb_len(mbc) ((mbc).bytes) - -/* Comparison of characters. */ -#define mb_iseq(mbc, sc) ((mbc).wc_valid && (mbc).wc == (sc)) -#define mb_isnul(mbc) ((mbc).wc_valid && (mbc).wc == 0) -#define mb_cmp(mbc1, mbc2) \ - ((mbc1).wc_valid \ - ? ((mbc2).wc_valid \ - ? (int) (mbc1).wc - (int) (mbc2).wc \ - : -1) \ - : ((mbc2).wc_valid \ - ? 1 \ - : (mbc1).bytes == (mbc2).bytes \ - ? memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes) \ - : (mbc1).bytes < (mbc2).bytes \ - ? (memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes) > 0 ? 1 : -1) \ - : (memcmp ((mbc1).ptr, (mbc2).ptr, (mbc2).bytes) >= 0 ? 1 : -1))) -#define mb_casecmp(mbc1, mbc2) \ - ((mbc1).wc_valid \ - ? ((mbc2).wc_valid \ - ? (int) towlower ((mbc1).wc) - (int) towlower ((mbc2).wc) \ - : -1) \ - : ((mbc2).wc_valid \ - ? 1 \ - : (mbc1).bytes == (mbc2).bytes \ - ? memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes) \ - : (mbc1).bytes < (mbc2).bytes \ - ? (memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes) > 0 ? 1 : -1) \ - : (memcmp ((mbc1).ptr, (mbc2).ptr, (mbc2).bytes) >= 0 ? 1 : -1))) -#define mb_equal(mbc1, mbc2) \ - ((mbc1).wc_valid && (mbc2).wc_valid \ - ? (mbc1).wc == (mbc2).wc \ - : (mbc1).bytes == (mbc2).bytes \ - && memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes) == 0) -#define mb_caseequal(mbc1, mbc2) \ - ((mbc1).wc_valid && (mbc2).wc_valid \ - ? towlower ((mbc1).wc) == towlower ((mbc2).wc) \ - : (mbc1).bytes == (mbc2).bytes \ - && memcmp ((mbc1).ptr, (mbc2).ptr, (mbc1).bytes) == 0) - -/* <ctype.h>, <wctype.h> classification. */ -#define mb_isascii(mbc) \ - ((mbc).wc_valid && (mbc).wc >= 0 && (mbc).wc <= 127) -#define mb_isalnum(mbc) ((mbc).wc_valid && iswalnum ((mbc).wc)) -#define mb_isalpha(mbc) ((mbc).wc_valid && iswalpha ((mbc).wc)) -#define mb_isblank(mbc) ((mbc).wc_valid && iswblank ((mbc).wc)) -#define mb_iscntrl(mbc) ((mbc).wc_valid && iswcntrl ((mbc).wc)) -#define mb_isdigit(mbc) ((mbc).wc_valid && iswdigit ((mbc).wc)) -#define mb_isgraph(mbc) ((mbc).wc_valid && iswgraph ((mbc).wc)) -#define mb_islower(mbc) ((mbc).wc_valid && iswlower ((mbc).wc)) -#define mb_isprint(mbc) ((mbc).wc_valid && iswprint ((mbc).wc)) -#define mb_ispunct(mbc) ((mbc).wc_valid && iswpunct ((mbc).wc)) -#define mb_isspace(mbc) ((mbc).wc_valid && iswspace ((mbc).wc)) -#define mb_isupper(mbc) ((mbc).wc_valid && iswupper ((mbc).wc)) -#define mb_isxdigit(mbc) ((mbc).wc_valid && iswxdigit ((mbc).wc)) - -/* Extra <wchar.h> function. */ - -/* Unprintable characters appear as a small box of width 1. */ -#define MB_UNPRINTABLE_WIDTH 1 - -static inline int -mb_width_aux (wint_t wc) -{ - int w = wcwidth (wc); - /* For unprintable characters, arbitrarily return 0 for control characters - and MB_UNPRINTABLE_WIDTH otherwise. */ - return (w >= 0 ? w : iswcntrl (wc) ? 0 : MB_UNPRINTABLE_WIDTH); -} - -#define mb_width(mbc) \ - ((mbc).wc_valid ? mb_width_aux ((mbc).wc) : MB_UNPRINTABLE_WIDTH) - -/* Output. */ -#define mb_putc(mbc, stream) fwrite ((mbc).ptr, 1, (mbc).bytes, (stream)) - -/* Assignment. */ -#define mb_setascii(mbc, sc) \ - ((mbc)->ptr = (mbc)->buf, (mbc)->bytes = 1, (mbc)->wc_valid = 1, \ - (mbc)->wc = (mbc)->buf[0] = (sc)) - -/* Copying a character. */ -static inline void -mb_copy (mbchar_t *new_mbc, const mbchar_t *old_mbc) -{ - if (old_mbc->ptr == &old_mbc->buf[0]) - { - memcpy (&new_mbc->buf[0], &old_mbc->buf[0], old_mbc->bytes); - new_mbc->ptr = &new_mbc->buf[0]; - } - else - new_mbc->ptr = old_mbc->ptr; - new_mbc->bytes = old_mbc->bytes; - if ((new_mbc->wc_valid = old_mbc->wc_valid)) - new_mbc->wc = old_mbc->wc; -} - - -/* is_basic(c) tests whether the single-byte character c is in the - ISO C "basic character set". - This is a convenience function, and is in this file only to share code - between mbiter_multi.h and mbfile_multi.h. */ -#if (' ' == 32) && ('!' == 33) && ('"' == 34) && ('#' == 35) \ - && ('%' == 37) && ('&' == 38) && ('\'' == 39) && ('(' == 40) \ - && (')' == 41) && ('*' == 42) && ('+' == 43) && (',' == 44) \ - && ('-' == 45) && ('.' == 46) && ('/' == 47) && ('0' == 48) \ - && ('1' == 49) && ('2' == 50) && ('3' == 51) && ('4' == 52) \ - && ('5' == 53) && ('6' == 54) && ('7' == 55) && ('8' == 56) \ - && ('9' == 57) && (':' == 58) && (';' == 59) && ('<' == 60) \ - && ('=' == 61) && ('>' == 62) && ('?' == 63) && ('A' == 65) \ - && ('B' == 66) && ('C' == 67) && ('D' == 68) && ('E' == 69) \ - && ('F' == 70) && ('G' == 71) && ('H' == 72) && ('I' == 73) \ - && ('J' == 74) && ('K' == 75) && ('L' == 76) && ('M' == 77) \ - && ('N' == 78) && ('O' == 79) && ('P' == 80) && ('Q' == 81) \ - && ('R' == 82) && ('S' == 83) && ('T' == 84) && ('U' == 85) \ - && ('V' == 86) && ('W' == 87) && ('X' == 88) && ('Y' == 89) \ - && ('Z' == 90) && ('[' == 91) && ('\\' == 92) && (']' == 93) \ - && ('^' == 94) && ('_' == 95) && ('a' == 97) && ('b' == 98) \ - && ('c' == 99) && ('d' == 100) && ('e' == 101) && ('f' == 102) \ - && ('g' == 103) && ('h' == 104) && ('i' == 105) && ('j' == 106) \ - && ('k' == 107) && ('l' == 108) && ('m' == 109) && ('n' == 110) \ - && ('o' == 111) && ('p' == 112) && ('q' == 113) && ('r' == 114) \ - && ('s' == 115) && ('t' == 116) && ('u' == 117) && ('v' == 118) \ - && ('w' == 119) && ('x' == 120) && ('y' == 121) && ('z' == 122) \ - && ('{' == 123) && ('|' == 124) && ('}' == 125) && ('~' == 126) -/* The character set is ISO-646, not EBCDIC. */ -# define IS_BASIC_ASCII 1 - -extern const unsigned int is_basic_table[]; - -static inline bool -is_basic (char c) -{ - return (is_basic_table [(unsigned char) c >> 5] >> ((unsigned char) c & 31)) - & 1; -} - -#else - -static inline bool -is_basic (char c) -{ - switch (c) - { - case '\t': case '\v': case '\f': - case ' ': case '!': case '"': case '#': case '%': - case '&': case '\'': case '(': case ')': case '*': - case '+': case ',': case '-': case '.': case '/': - case '0': case '1': case '2': case '3': case '4': - case '5': case '6': case '7': case '8': case '9': - case ':': case ';': case '<': case '=': case '>': - case '?': - case 'A': case 'B': case 'C': case 'D': case 'E': - case 'F': case 'G': case 'H': case 'I': case 'J': - case 'K': case 'L': case 'M': case 'N': case 'O': - case 'P': case 'Q': case 'R': case 'S': case 'T': - case 'U': case 'V': case 'W': case 'X': case 'Y': - case 'Z': - case '[': case '\\': case ']': case '^': case '_': - case 'a': case 'b': case 'c': case 'd': case 'e': - case 'f': case 'g': case 'h': case 'i': case 'j': - case 'k': case 'l': case 'm': case 'n': case 'o': - case 'p': case 'q': case 'r': case 's': case 't': - case 'u': case 'v': case 'w': case 'x': case 'y': - case 'z': case '{': case '|': case '}': case '~': - return 1; - default: - return 0; - } -} - -#endif - -#endif /* _MBCHAR_H */ |