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0a80c983e2
all the global and function-static variables out of terminal.c into a dynamically allocated data structure. Note that this does not yet confer the ability to run more than one of them in the same process, because other things (the line discipline, the back end) are still global, and also in particular the address of the dynamically allocated terminal-data structure is held in a global variable `term'. But what I've got here represents a reasonable stopping point at which to check things in. In _theory_ this should all still work happily, on both Unix and Windows. In practice, who knows? [originally from svn r2115]
138 lines
3.2 KiB
C
138 lines
3.2 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <time.h>
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#include "putty.h"
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#include "terminal.h"
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#include "misc.h"
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/*
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* Unix Unicode-handling routines.
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*
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* FIXME: currently trivial stub versions assuming all codepages
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* are ISO8859-1.
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*/
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void lpage_send(int codepage, char *buf, int len, int interactive)
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{
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ldisc_send(buf, len, interactive);
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}
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void luni_send(wchar_t * widebuf, int len, int interactive)
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{
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static char *linebuffer = 0;
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static int linesize = 0;
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int ratio = (in_utf(term))?6:1;
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int i;
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char *p;
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if (len * ratio > linesize) {
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sfree(linebuffer);
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linebuffer = smalloc(len * ratio * 2 * sizeof(wchar_t));
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linesize = len * ratio * 2;
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}
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if (in_utf(term)) {
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/* UTF is a simple algorithm */
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for (p = linebuffer, i = 0; i < len; i++) {
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wchar_t ch = widebuf[i];
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if ((ch&0xF800) == 0xD800) ch = '.';
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if (ch < 0x80) {
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*p++ = (char) (ch);
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} else if (ch < 0x800) {
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*p++ = (0xC0 | (ch >> 6));
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*p++ = (0x80 | (ch & 0x3F));
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} else if (ch < 0x10000) {
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*p++ = (0xE0 | (ch >> 12));
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*p++ = (0x80 | ((ch >> 6) & 0x3F));
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*p++ = (0x80 | (ch & 0x3F));
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} else if (ch < 0x200000) {
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*p++ = (0xF0 | (ch >> 18));
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*p++ = (0x80 | ((ch >> 12) & 0x3F));
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*p++ = (0x80 | ((ch >> 6) & 0x3F));
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*p++ = (0x80 | (ch & 0x3F));
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} else if (ch < 0x4000000) {
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*p++ = (0xF8 | (ch >> 24));
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*p++ = (0x80 | ((ch >> 18) & 0x3F));
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*p++ = (0x80 | ((ch >> 12) & 0x3F));
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*p++ = (0x80 | ((ch >> 6) & 0x3F));
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*p++ = (0x80 | (ch & 0x3F));
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} else {
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*p++ = (0xFC | (ch >> 30));
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*p++ = (0x80 | ((ch >> 24) & 0x3F));
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*p++ = (0x80 | ((ch >> 18) & 0x3F));
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*p++ = (0x80 | ((ch >> 12) & 0x3F));
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*p++ = (0x80 | ((ch >> 6) & 0x3F));
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*p++ = (0x80 | (ch & 0x3F));
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}
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}
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} else {
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for (p = linebuffer, i = 0; i < len; i++) {
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wchar_t ch = widebuf[i];
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if (ch < 0x100)
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*p++ = (char) ch;
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else
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*p++ = '.';
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}
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}
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if (p > linebuffer)
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ldisc_send(linebuffer, p - linebuffer, interactive);
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}
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int is_dbcs_leadbyte(int codepage, char byte)
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{
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return 0; /* we don't do DBCS */
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}
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int mb_to_wc(int codepage, int flags, char *mbstr, int mblen,
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wchar_t *wcstr, int wclen)
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{
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int ret = 0;
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while (mblen > 0 && wclen > 0) {
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*wcstr++ = (unsigned char) *mbstr++;
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mblen--, wclen--, ret++;
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}
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return ret; /* FIXME: check error codes! */
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}
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int wc_to_mb(int codepage, int flags, wchar_t *wcstr, int wclen,
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char *mbstr, int mblen, char *defchr, int *defused)
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{
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int ret = 0;
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if (defused)
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*defused = 0;
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while (mblen > 0 && wclen > 0) {
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if (*wcstr >= 0x100) {
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if (defchr)
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*mbstr++ = *defchr;
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else
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*mbstr++ = '\xBF';
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if (defused)
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*defused = 1;
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} else
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*mbstr++ = (unsigned char) *wcstr;
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wcstr++;
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mblen--, wclen--, ret++;
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}
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return ret; /* FIXME: check error codes! */
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}
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void init_ucs(void)
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{
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int i;
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/* Find the line control characters. FIXME: this is not right. */
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for (i = 0; i < 256; i++)
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if (i < ' ' || (i >= 0x7F && i < 0xA0))
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unitab_ctrl[i] = i;
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else
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unitab_ctrl[i] = 0xFF;
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for (i = 0; i < 256; i++) {
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unitab_line[i] = unitab_scoacs[i] = i;
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unitab_xterm[i] = (i >= 0x5F && i < 0x7F) ? ((i+1) & 0x1F) : i;
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}
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}
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