#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 "terminal.h"
#include "misc.h"
/*
* Unix Unicode-handling routines.
- *
- * FIXME: currently trivial stub versions assuming all codepages
- * are ISO8859-1.
*/
int is_dbcs_leadbyte(int codepage, char byte)
int mb_to_wc(int codepage, int flags, char *mbstr, int mblen,
wchar_t *wcstr, int wclen)
{
- int ret = 0;
- while (mblen > 0 && wclen > 0) {
- *wcstr++ = (unsigned char) *mbstr++;
- mblen--, wclen--, ret++;
- }
- return ret; /* FIXME: check error codes! */
+ if (codepage == DEFAULT_CODEPAGE) {
+ int n = 0;
+ mbstate_t state = { 0 };
+
+ setlocale(LC_CTYPE, "");
+
+ 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;
+ }
+
+ setlocale(LC_CTYPE, "C");
+
+ return n;
+ } else
+ return charset_to_unicode(&mbstr, &mblen, wcstr, wclen, codepage,
+ NULL, NULL, 0);
}
int wc_to_mb(int codepage, int flags, wchar_t *wcstr, int wclen,
char *mbstr, int mblen, char *defchr, int *defused)
{
- int ret = 0;
+ /* FIXME: we should remove the defused param completely... */
if (defused)
*defused = 0;
- while (mblen > 0 && wclen > 0) {
- if (*wcstr >= 0x100) {
- if (defchr)
- *mbstr++ = *defchr;
- else
- *mbstr++ = '.';
- if (defused)
- *defused = 1;
- } else
- *mbstr++ = (unsigned char) *wcstr;
- wcstr++;
- mblen--, wclen--, ret++;
- }
- return ret; /* FIXME: check error codes! */
+
+ if (codepage == DEFAULT_CODEPAGE) {
+ char output[MB_LEN_MAX];
+ mbstate_t state = { 0 };
+ int n = 0;
+
+ setlocale(LC_CTYPE, "");
+
+ 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--;
+ }
+
+ setlocale(LC_CTYPE, "C");
+
+ return n;
+ } else
+ return charset_from_unicode(&wcstr, &wclen, mbstr, mblen, codepage,
+ NULL, NULL, 0);
}
void init_ucs(void)
{
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;
+
+ /*
+ * 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.
+ */
+ font_codepage = -1;
+
+ /*
+ * line_codepage should be decoded from the specification in
+ * cfg.
+ */
+ line_codepage = charset_from_mimeenc(cfg.line_codepage);
+ if (line_codepage == CS_NONE)
+ line_codepage = charset_from_xenc(cfg.line_codepage);
+ /* If it's still CS_NONE, we should assume direct-to-font. */
+
+ /* FIXME: this is a hack. Currently fonts with incomprehensible
+ * encodings are dealt with by pretending they're 8859-1. It's
+ * ugly, but it's good enough to stop things crashing. Should do
+ * something better here. */
+ if (line_codepage == CS_NONE)
+ line_codepage = CS_ISO8859_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], *p;
+ wchar_t wc[1];
+ int len;
+ c[0] = i;
+ p = c;
+ len = 1;
+ if (1 == charset_to_unicode(&p,&len,wc,1,line_codepage,NULL,L"",0))
+ unitab_line[i] = wc[0];
else
- unitab_ctrl[i] = 0xFF;
+ 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 >= 0x5F && i < 0x7F) ? ((i+1) & 0x1F) : 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
+ };
+ if (i >= 0x5F && i < 0x7F)
+ unitab_xterm[i] = unitab_xterm_std[i & 0x1F];
+ else
+ unitab_xterm[i] = unitab_line[i];
}
+
+ /*
+ * Set up unitab_scoacs. The SCO Alternate Character Set is
+ * simply CP437.
+ */
+ for (i = 0; i < 256; i++) {
+ char c[1], *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))
+ unitab_scoacs[i] = wc[0];
+ else
+ unitab_scoacs[i] = 0xFFFD;
+ }
+
+ /* Find the line control characters. */
+ for (i = 0; i < 256; i++)
+ if (unitab_line[i] < ' '
+ || (unitab_line[i] >= 0x7F && unitab_line[i] < 0xA0))
+ unitab_ctrl[i] = i;
+ else
+ unitab_ctrl[i] = 0xFF;
}
projects / u / mdw / putty / blobdiff