WIN32 port: introduced VT100 decoder. ELinks is able to display first page

of the document. Keyboard doesn't work, Windows style path either.
I tested it only under Wine.

src/main/select.c

@@ -243,7 +243,7 @@ select_loop(void (*init)(void))
 #endif
 		if (has_timer) {
 			/* Be sure timeout is not negative. */
-			timeval_limit_to_zero(&t);
+			timeval_limit_to_zero_or_one(&t);
 			timeout = (struct timeval *) &t;
 		}
 
@@ -335,5 +335,10 @@ can_read(int fd)
 int
 can_write(int fd)
 {
+#ifdef CONFIG_OS_WIN32
+	/* temporary hack. ELinks didn't start properly under Wine */
+	return 1;
+#else
 	return can_read_or_write(fd, 1);
+#endif
 }

src/osdep/win32/Makefile

@@ -1,6 +1,6 @@
 top_builddir=../../..
 include $(top_builddir)/Makefile.config
 
-OBJS = win32.o overrides.o
+OBJS = overrides.o vt100.o win32.o
 
 include $(top_srcdir)/Makefile.lib

src/osdep/win32/overrides.c

@@ -25,6 +25,7 @@
 #include "intl/gettext/libintl.h"
 #include "osdep/osdep.h"
 #include "osdep/win32/overrides.h"
+#include "osdep/win32/vt100.h"
 #include "osdep/win32/win32.h"
 #include "terminal/mouse.h"
 #include "terminal/terminal.h"
@@ -209,9 +210,11 @@ win32_write(int fd, const void *buf, unsigned len)
 
 	case FDT_TERMINAL:
 		if (isatty(STDOUT_FILENO) > 0) {
-			/* TODO: pass to VT100 decoder */
-			WriteConsole ((HANDLE) fd, buf, len, &written, NULL);
+#if 0			
+			WriteConsole ((HANDLE) fd, buf, len, &written, NULL); 
 			rc = written;
+#endif
+			rc = VT100_decode((HANDLE) fd, buf, len);
 		} else {
 			/* stdout redirected */
 			rc = write(STDOUT_FILENO, buf, len);

src/osdep/win32/vt100.c

@@ -0,0 +1,113 @@
+
+/* VT 100 emulation */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "osdep/system.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+
+#include "elinks.h"
+
+#include "osdep/osdep.h"
+#include "osdep/win32/win32.h"
+
+
+int
+VT100_decode(HANDLE fd, const void *b, int len)
+{
+	static unsigned char intensity = 0;
+	static unsigned char fore = 7;
+	static unsigned char back = 0;
+	char *buf = (char *)b;
+
+	int length = len;
+	int i = 0;
+
+	while (1) {
+		if (len <= 0) return length;
+		for (i = 0; i < len && buf[i] != 27; i++);
+		if (i) {
+			DWORD w;
+
+			WriteConsole(fd, buf, i, &w, NULL);
+			len -= w;
+			if (len <= 0) return length;
+			buf += w;
+		}
+		if (!strncmp(buf, "\033)0\0337", 5)) {
+			buf += 5;
+			len -= 5;
+			continue;
+		}
+		if (!strncmp(buf, "\033[?47h", 6)) {
+			buf += 6;
+			len -= 6;
+			continue;
+		}
+		if (!strncmp(buf, "\033[?47l", 6)) {
+			buf += 6;
+			len -= 6;
+			continue;
+		}
+		if (!strncmp(buf, "\033[2J", 4)) {
+			/* Clear screen */
+			buf += 4;
+			len -= 4;
+			continue;
+		}
+		if (buf[1] == '[') {
+			char *tail;
+			char *begin;
+			char *end;
+			COORD pos;
+
+			buf += 2;
+			len -= 2;
+			int k = strspn(buf, "0123456789;");
+			if (!k) continue;
+			switch (buf[k]) {
+			case 'H':
+				pos.Y = (short)strtol(buf, &tail, 10) - 1;
+				pos.X = (short)strtol(tail + 1, NULL, 10) - 1;
+				SetConsoleCursorPosition(fd, pos);
+				break;
+			case 'm':
+				end = buf + k;
+				begin = tail = buf;
+				while (tail < end) {
+					static unsigned char kolors[8] = {0, 4, 2, 6, 1, 5, 3, 7};
+					unsigned char kod = (unsigned char)strtol(begin, &tail, 10);
+
+					begin = tail + 1;
+					if (kod == 0) {
+						intensity = 0;
+					} else if (kod == 1) {
+						intensity = 8;
+					} else if (kod >= 30 && kod <= 37) {
+						fore = kolors[kod - 30];
+					} else if (kod >= 40 && kod <= 47) {
+						back = kolors[kod - 40];
+					}
+				}
+				SetConsoleTextAttribute(fd, fore | intensity | back << 4);
+				break;
+			default:
+				break;
+			}
+			k++;
+			buf += k;
+			len -= k;
+		} else {
+			buf += 2;
+			len -= 2;
+		}
+	}
+}

src/osdep/win32/vt100.h

@@ -0,0 +1,15 @@
+#ifndef EL__OSDEP_WIN32_VT100_H
+#define EL__OSDEP_WIN32_VT100_H
+
+#ifdef CONFIG_OS_WIN32
+
+#ifdef HAVE_WINDOWS_H
+#include <windows.h>
+#endif
+
+int VT100_decode(HANDLE, const void *, int);
+
+#endif
+
+#endif
+

src/util/time.c

@@ -198,10 +198,12 @@ timeval_is_positive(timeval_T *t)
 
 /* Be sure timeval is not negative. */
 void
-timeval_limit_to_zero(timeval_T *t)
+timeval_limit_to_zero_or_one(timeval_T *t)
 {
 	if (t->sec < 0) t->sec = 0;
 	if (t->usec < 0) t->usec = 0;
+/* Under Windows I got 300 seconds timeout, so 1 second should not hurt --witekfl */
+	if (t->sec > 1) t->sec = 1;
 }
 
 /* Returns 1 if t1 > t2

src/util/time.h

@@ -37,7 +37,7 @@ milliseconds_T timeval_to_milliseconds(timeval_T *t);
 long timeval_to_seconds(timeval_T *t);
 
 int timeval_is_positive(timeval_T *t);
-void timeval_limit_to_zero(timeval_T *t);
+void timeval_limit_to_zero_or_one(timeval_T *t);
 timeval_T *timeval_now(timeval_T *t);
 timeval_T *timeval_sub(timeval_T *res, timeval_T *older, timeval_T *newer);
 timeval_T *timeval_add(timeval_T *res, timeval_T *base, timeval_T *t);