diff options
Diffstat (limited to 'unix/uxucs.c')
| -rw-r--r-- | unix/uxucs.c | 268 |
1 files changed, 0 insertions, 268 deletions
diff --git a/unix/uxucs.c b/unix/uxucs.c deleted file mode 100644 index c1d76a42..00000000 --- a/unix/uxucs.c +++ /dev/null @@ -1,268 +0,0 @@ -#include <stdio.h> -#include <stdlib.h> -#include <ctype.h> -#include <locale.h> -#include <limits.h> -#include <wchar.h> - -#include <time.h> - -#include "putty.h" -#include "charset.h" -#include "terminal.h" -#include "misc.h" - -/* - * Unix Unicode-handling routines. - */ - -bool is_dbcs_leadbyte(int codepage, char byte) -{ - return false; /* we don't do DBCS */ -} - -int mb_to_wc(int codepage, int flags, const char *mbstr, int mblen, - wchar_t *wcstr, int wclen) -{ - if (codepage == DEFAULT_CODEPAGE) { - int n = 0; - mbstate_t state; - - memset(&state, 0, sizeof state); - - while (mblen > 0) { - size_t i = mbrtowc(wcstr+n, mbstr, (size_t)mblen, &state); - if (i == (size_t)-1 || i == (size_t)-2) - break; - n++; - mbstr += i; - mblen -= i; - } - - return n; - } else if (codepage == CS_NONE) { - int n = 0; - - while (mblen > 0) { - wcstr[n] = 0xD800 | (mbstr[0] & 0xFF); - n++; - mbstr++; - mblen--; - } - - return n; - } else - return charset_to_unicode(&mbstr, &mblen, wcstr, wclen, codepage, - NULL, NULL, 0); -} - -int wc_to_mb(int codepage, int flags, const wchar_t *wcstr, int wclen, - char *mbstr, int mblen, const char *defchr, - struct unicode_data *ucsdata) -{ - if (codepage == DEFAULT_CODEPAGE) { - char output[MB_LEN_MAX]; - mbstate_t state; - int n = 0; - - memset(&state, 0, sizeof state); - - while (wclen > 0) { - size_t i = wcrtomb(output, wcstr[0], &state); - if (i == (size_t)-1 || i > n - mblen) - break; - memcpy(mbstr+n, output, i); - n += i; - wcstr++; - wclen--; - } - - return n; - } else if (codepage == CS_NONE) { - int n = 0; - while (wclen > 0 && n < mblen) { - if (*wcstr >= 0xD800 && *wcstr < 0xD900) - mbstr[n++] = (*wcstr & 0xFF); - else if (defchr) - mbstr[n++] = *defchr; - wcstr++; - wclen--; - } - return n; - } else { - return charset_from_unicode(&wcstr, &wclen, mbstr, mblen, codepage, - NULL, defchr?defchr:NULL, defchr?1:0); - } -} - -/* - * Return value is true if pterm is to run in direct-to-font mode. - */ -bool init_ucs(struct unicode_data *ucsdata, char *linecharset, - bool utf8_override, int font_charset, int vtmode) -{ - int i; - bool ret = false; - - /* - * In the platform-independent parts of the code, font_codepage - * is used only for system DBCS support - which we don't - * support at all. So we set this to something which will never - * be used. - */ - ucsdata->font_codepage = -1; - - /* - * If utf8_override is set and the POSIX locale settings - * dictate a UTF-8 character set, then just go straight for - * UTF-8. - */ - ucsdata->line_codepage = CS_NONE; - if (utf8_override) { - const char *s; - if (((s = getenv("LC_ALL")) && *s) || - ((s = getenv("LC_CTYPE")) && *s) || - ((s = getenv("LANG")) && *s)) { - if (strstr(s, "UTF-8")) - ucsdata->line_codepage = CS_UTF8; - } - } - - /* - * Failing that, line_codepage should be decoded from the - * specification in conf. - */ - if (ucsdata->line_codepage == CS_NONE) - ucsdata->line_codepage = decode_codepage(linecharset); - - /* - * If line_codepage is _still_ CS_NONE, we assume we're using - * the font's own encoding. This has been passed in to us, so - * we use that. If it's still CS_NONE after _that_ - i.e. the - * font we were given had an incomprehensible charset - then we - * fall back to using the D800 page. - */ - if (ucsdata->line_codepage == CS_NONE) - ucsdata->line_codepage = font_charset; - - if (ucsdata->line_codepage == CS_NONE) - ret = true; - - /* - * Set up unitab_line, by translating each individual character - * in the line codepage into Unicode. - */ - for (i = 0; i < 256; i++) { - char c[1]; - const char *p; - wchar_t wc[1]; - int len; - c[0] = i; - p = c; - len = 1; - if (ucsdata->line_codepage == CS_NONE) - ucsdata->unitab_line[i] = 0xD800 | i; - else if (1 == charset_to_unicode(&p, &len, wc, 1, - ucsdata->line_codepage, - NULL, L"", 0)) - ucsdata->unitab_line[i] = wc[0]; - else - ucsdata->unitab_line[i] = 0xFFFD; - } - - /* - * Set up unitab_xterm. This is the same as unitab_line except - * in the line-drawing regions, where it follows the Unicode - * encoding. - * - * (Note that the strange X encoding of line-drawing characters - * in the bottom 32 glyphs of ISO8859-1 fonts is taken care of - * by the font encoding, which will spot such a font and act as - * if it were in a variant encoding of ISO8859-1.) - */ - for (i = 0; i < 256; i++) { - static const wchar_t unitab_xterm_std[32] = { - 0x2666, 0x2592, 0x2409, 0x240c, 0x240d, 0x240a, 0x00b0, 0x00b1, - 0x2424, 0x240b, 0x2518, 0x2510, 0x250c, 0x2514, 0x253c, 0x23ba, - 0x23bb, 0x2500, 0x23bc, 0x23bd, 0x251c, 0x2524, 0x2534, 0x252c, - 0x2502, 0x2264, 0x2265, 0x03c0, 0x2260, 0x00a3, 0x00b7, 0x0020 - }; - static const wchar_t unitab_xterm_poorman[32] = - L"*#****o~**+++++-----++++|****L. "; - - const wchar_t *ptr; - - if (vtmode == VT_POORMAN) - ptr = unitab_xterm_poorman; - else - ptr = unitab_xterm_std; - - if (i >= 0x5F && i < 0x7F) - ucsdata->unitab_xterm[i] = ptr[i & 0x1F]; - else - ucsdata->unitab_xterm[i] = ucsdata->unitab_line[i]; - } - - /* - * Set up unitab_scoacs. The SCO Alternate Character Set is - * simply CP437. - */ - for (i = 0; i < 256; i++) { - char c[1]; - const char *p; - wchar_t wc[1]; - int len; - c[0] = i; - p = c; - len = 1; - if (1 == charset_to_unicode(&p, &len, wc, 1, CS_CP437, NULL, L"", 0)) - ucsdata->unitab_scoacs[i] = wc[0]; - else - ucsdata->unitab_scoacs[i] = 0xFFFD; - } - - /* - * Find the control characters in the line codepage. For - * direct-to-font mode using the D800 hack, we assume 00-1F and - * 7F are controls, but allow 80-9F through. (It's as good a - * guess as anything; and my bet is that half the weird fonts - * used in this way will be IBM or MS code pages anyway.) - */ - for (i = 0; i < 256; i++) { - int lineval = ucsdata->unitab_line[i]; - if (lineval < ' ' || (lineval >= 0x7F && lineval < 0xA0) || - (lineval >= 0xD800 && lineval < 0xD820) || (lineval == 0xD87F)) - ucsdata->unitab_ctrl[i] = i; - else - ucsdata->unitab_ctrl[i] = 0xFF; - } - - return ret; -} - -const char *cp_name(int codepage) -{ - if (codepage == CS_NONE) - return "Use font encoding"; - return charset_to_localenc(codepage); -} - -const char *cp_enumerate(int index) -{ - int charset; - charset = charset_localenc_nth(index); - if (charset == CS_NONE) { - /* "Use font encoding" comes after all the named charsets */ - if (charset_localenc_nth(index-1) != CS_NONE) - return "Use font encoding"; - return NULL; - } - return charset_to_localenc(charset); -} - -int decode_codepage(char *cp_name) -{ - if (!cp_name || !*cp_name) - return CS_UTF8; - return charset_from_localenc(cp_name); -} |