#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.
- *
- * FIXME: currently trivial stub versions assuming all codepages
- * are ISO8859-1.
*/
-void lpage_send(int codepage, char *buf, int len, int interactive)
+int is_dbcs_leadbyte(int codepage, char byte)
{
- ldisc_send(buf, len, interactive);
+ return 0; /* we don't do DBCS */
}
-void luni_send(wchar_t * widebuf, int len, int interactive)
+int mb_to_wc(int codepage, int flags, const char *mbstr, int mblen,
+ wchar_t *wcstr, int wclen)
{
- static char *linebuffer = 0;
- static int linesize = 0;
- int ratio = (in_utf)?6:1;
- int i;
- char *p;
-
- if (len * ratio > linesize) {
- sfree(linebuffer);
- linebuffer = smalloc(len * ratio * 2 * sizeof(wchar_t));
- linesize = len * ratio * 2;
- }
+ if (codepage == DEFAULT_CODEPAGE) {
+ int n = 0;
+ mbstate_t state;
+
+ memset(&state, 0, sizeof state);
- if (in_utf) {
- /* UTF is a simple algorithm */
- for (p = linebuffer, i = 0; i < len; i++) {
- wchar_t ch = widebuf[i];
-
- if ((ch&0xF800) == 0xD800) ch = '.';
-
- if (ch < 0x80) {
- *p++ = (char) (ch);
- } else if (ch < 0x800) {
- *p++ = (0xC0 | (ch >> 6));
- *p++ = (0x80 | (ch & 0x3F));
- } else if (ch < 0x10000) {
- *p++ = (0xE0 | (ch >> 12));
- *p++ = (0x80 | ((ch >> 6) & 0x3F));
- *p++ = (0x80 | (ch & 0x3F));
- } else if (ch < 0x200000) {
- *p++ = (0xF0 | (ch >> 18));
- *p++ = (0x80 | ((ch >> 12) & 0x3F));
- *p++ = (0x80 | ((ch >> 6) & 0x3F));
- *p++ = (0x80 | (ch & 0x3F));
- } else if (ch < 0x4000000) {
- *p++ = (0xF8 | (ch >> 24));
- *p++ = (0x80 | ((ch >> 18) & 0x3F));
- *p++ = (0x80 | ((ch >> 12) & 0x3F));
- *p++ = (0x80 | ((ch >> 6) & 0x3F));
- *p++ = (0x80 | (ch & 0x3F));
- } else {
- *p++ = (0xFC | (ch >> 30));
- *p++ = (0x80 | ((ch >> 24) & 0x3F));
- *p++ = (0x80 | ((ch >> 18) & 0x3F));
- *p++ = (0x80 | ((ch >> 12) & 0x3F));
- *p++ = (0x80 | ((ch >> 6) & 0x3F));
- *p++ = (0x80 | (ch & 0x3F));
- }
+ 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;
}
- } else {
- for (p = linebuffer, i = 0; i < len; i++) {
- wchar_t ch = widebuf[i];
- if (ch < 0x100)
- *p++ = (char) ch;
- else
- *p++ = '.';
+
+ return n;
+ } else if (codepage == CS_NONE) {
+ int n = 0;
+
+ while (mblen > 0) {
+ wcstr[n] = 0xD800 | (mbstr[0] & 0xFF);
+ n++;
+ mbstr++;
+ mblen--;
}
- }
- if (p > linebuffer)
- ldisc_send(linebuffer, p - linebuffer, interactive);
-}
-int is_dbcs_leadbyte(int codepage, char byte)
-{
- return 0; /* we don't do DBCS */
+ return n;
+ } else
+ return charset_to_unicode(&mbstr, &mblen, wcstr, wclen, codepage,
+ NULL, NULL, 0);
}
-int mb_to_wc(int codepage, int flags, char *mbstr, int mblen,
- wchar_t *wcstr, int wclen)
+int wc_to_mb(int codepage, int flags, const wchar_t *wcstr, int wclen,
+ char *mbstr, int mblen, char *defchr, int *defused,
+ struct unicode_data *ucsdata)
{
- int ret = 0;
- while (mblen > 0 && wclen > 0) {
- *wcstr++ = (unsigned char) *mbstr++;
- ret++;
+ /* FIXME: we should remove the defused param completely... */
+ if (defused)
+ *defused = 0;
+
+ if (codepage == DEFAULT_CODEPAGE) {
+ char output[MB_LEN_MAX];
+ mbstate_t state;
+ int n = 0;
+
+ memset(&state, 0, sizeof state);
+
+ while (wclen > 0) {
+ int 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 ret; /* FIXME: check error codes! */
}
-void init_ucs(void)
+/*
+ * Return value is TRUE if pterm is to run in direct-to-font mode.
+ */
+int init_ucs(struct unicode_data *ucsdata, char *linecharset,
+ int utf8_override, int font_charset, int vtmode)
{
- int i;
- /* Find the line control characters. FIXME: this is not right. */
- for (i = 0; i < 256; i++)
- if (i < ' ' || (i >= 0x7F && i < 0xA0))
- unitab_ctrl[i] = i;
+ int i, ret = 0;
+
+ /*
+ * 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 = 1;
+
+ /*
+ * 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
- unitab_ctrl[i] = 0xFF;
+ 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++) {
- unitab_line[i] = unitab_scoacs[i] = i;
- unitab_xterm[i] = (i+1) & 0x1F;
+ 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];
}
-}
\ No newline at end of file
+
+ /*
+ * 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);
+}
projects / u / mdw / putty / blobdiff