mirror of
https://github.com/rkd77/elinks.git
synced 2024-12-04 14:46:47 -05:00
118 lines
2.1 KiB
C
118 lines
2.1 KiB
C
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/* VT 100 emulation */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "osdep/system.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <sys/types.h>
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#include "elinks.h"
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#include "osdep/osdep.h"
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#include "osdep/win32/win32.h"
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int
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VT100_decode(HANDLE fd, const void *b, int len)
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{
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static unsigned char intensity = 0;
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static unsigned char fore = 7;
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static unsigned char back = 0;
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char *buf = (char *)b;
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int length = len;
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int i = 0;
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while (1) {
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if (len <= 0) return length;
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for (i = 0; i < len && buf[i] != 27; i++);
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if (i) {
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DWORD w;
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WriteConsole(fd, buf, i, &w, NULL);
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len -= w;
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if (len <= 0) return length;
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buf += w;
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}
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if (!strncmp(buf, "\033)0\0337", 5)) {
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buf += 5;
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len -= 5;
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continue;
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}
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if (!strncmp(buf, "\033[?47h", 6)) {
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buf += 6;
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len -= 6;
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continue;
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}
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if (!strncmp(buf, "\033[?47l", 6)) {
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buf += 6;
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len -= 6;
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continue;
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}
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if (!strncmp(buf, "\033[2J", 4)) {
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/* Clear screen */
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buf += 4;
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len -= 4;
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continue;
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}
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if (buf[1] == '[') {
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char *tail;
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char *begin;
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char *end;
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COORD pos;
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buf += 2;
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len -= 2;
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int k = strspn(buf, "0123456789;");
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if (!k) continue;
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switch (buf[k]) {
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case 'H':
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pos.Y = (short)strtol(buf, &tail, 10) - 1;
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pos.X = (short)strtol(tail + 1, NULL, 10) - 1;
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SetConsoleCursorPosition(fd, pos);
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break;
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case 'm':
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end = buf + k;
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begin = tail = buf;
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while (tail < end) {
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static unsigned char kolors[8] = {0, 4, 2, 6, 1, 5, 3, 7};
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unsigned char kod = (unsigned char)strtol(begin, &tail, 10);
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begin = tail + 1;
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if (kod == 0) {
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intensity = 0;
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back = 0;
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fore = 7;
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} else if (kod == 1) {
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intensity = 8;
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} else if (kod == 22) {
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intensity = 0;
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} else if (kod >= 30 && kod <= 37) {
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fore = kolors[kod - 30];
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} else if (kod >= 40 && kod <= 47) {
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back = kolors[kod - 40];
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}
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}
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SetConsoleTextAttribute(fd, fore | intensity | back << 4);
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break;
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default:
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break;
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}
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k++;
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buf += k;
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len -= k;
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} else {
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buf += 2;
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len -= 2;
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}
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}
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}
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