Bump libterm

3 files changed, 308 insertions, 21 deletions

diff --git a/libterm/debug.h b/libterm/debug.h
new file mode 100644
index 0000000..a8bf211
--- /dev/null
+++ b/libterm/debug.h
@@ -0,0 +1,69 @@
+#ifndef __RB_DEBUG_UTILS_H
+#define __RB_DEBUG_UTILS_H
+
+//what about kprintf?
+
+//config options
+#define PRINTF printf
+#define COLORIZE
+#define PRINT_LINENUM
+#define PRINT_FILENAME
+#define PRINT_DEBUG
+
+
+//use color
+#ifdef COLORIZE
+	#define D_COLOR "1;32m"
+	#define D_COLOR_S "\033[" D_COLOR
+	#define D_COLOR_E "\033[0m"
+	#define E_COLOR "1;31m"
+	#define E_COLOR_S "\033[" E_COLOR
+	#define E_COLOR_E "\033[0m"
+#else
+	#define D_COLOR
+	#define D_COLOR_S
+	#define D_COLOR_E
+	#define E_COLOR
+	#define E_COLOR_S
+	#define E_COLOR_E
+#endif
+
+//print debug line
+#ifdef PRINT_LINENUM
+	#define PRINT_LINE_F "LINE:%d "
+	#define PRINT_LINE_D __LINE__
+#else
+	#define PRINT_LINE_F ""
+	#define PRINT_LINE_D ""
+#endif
+
+//print
+#ifdef PRINT_FILENAME
+	#define PRINT_FILE_F "FILE:%s "
+	#define PRINT_FILE_D __FILE__
+#else
+	#define PRINT_FILE_F ""
+	#define PRINT_FILE_D ""
+#endif
+
+//print debug string
+#ifdef PRINT_DEBUG
+	#define PRINT_DEBUG_F "Debug: "
+#else
+	#define PRINT_DEBUG_F ""
+#endif
+
+#define PRINT( format, args ... ) PRINTF( D_COLOR_S PRINT_DEBUG_F \
+	PRINT_FILE_F PRINT_LINE_F format D_COLOR_E, PRINT_FILE_D, \
+	PRINT_LINE_D, ##args);
+
+#define ERROR( format, args ... ) PRINTF( E_COLOR_S PRINT_DEBUG_F \
+	PRINT_FILE_F PRINT_LINE_F format E_COLOR_E, PRINT_FILE_D, \
+	PRINT_LINE_D, ##args);
+
+#define PNL() PRINT("\n");
+
+#define ENL() ERROR("\n");
+
+
+#endif
diff --git a/libterm/term.c b/libterm/term.c
index 5d2a44f..9a4e231 100644
--- a/libterm/term.c
+++ b/libterm/term.c
@@ -1,54 +1,253 @@
 #include "term.h"
 
-int term_init_data( term_screen *term )
+#include "debug.h"
+
+enum KEY_ACTION{
+	KEY_NULL = 0,	    /* NULL */
+	CTRL_A = 1,         /* Ctrl+a */
+	CTRL_B = 2,         /* Ctrl-b */
+	CTRL_C = 3,         /* Ctrl-c */
+	CTRL_D = 4,         /* Ctrl-d */
+	CTRL_E = 5,         /* Ctrl-e */
+	CTRL_F = 6,         /* Ctrl-f */
+	CTRL_H = 8,         /* Ctrl-h */
+	TAB = 9,            /* Tab */
+	CTRL_K = 11,        /* Ctrl+k */
+	CTRL_L = 12,        /* Ctrl+l */
+	ENTER = 13,         /* Enter */
+	CTRL_N = 14,        /* Ctrl-n */
+	CTRL_P = 16,        /* Ctrl-p */
+	CTRL_T = 20,        /* Ctrl-t */
+	CTRL_U = 21,        /* Ctrl+u */
+	CTRL_W = 23,        /* Ctrl+w */
+	ESC = 27,           /* Escape */
+	BACKSPACE =  127    /* Backspace */
+};
+
+#define T_ESC "\x1b"
+
+int term_init( term_screen *term )
 {
 	int ret=0;
 
-	term->term_col = term_get_col();
+	if ( !isatty(STDIN_FILENO) ) goto exit_error;
+	//!!!!!!
+	//register atexit
+
+	term->ifd = STDIN_FILENO;
+	term->ofd = STDOUT_FILENO;
+
+	if (term_set_raw_mode( term ) == -1 ) goto exit_error;
+
+	term->term_col = term_get_maxcol( term );//not good
 	if (term->term_col == -1) ret = -1;
 
-	term->term_row = term_get_row();
+	term->term_row = term_get_maxrow( term );//not good
 	if (term->term_row == -1) ret = -1;
 
 	term->mode = SCREEN_MODE_80x24;
 
 	return ret;
+
+exit_error:
+	errno = ENOTTY;
+	return -1;
 }
 
 
-int term_get_col(  )
+int term_get_maxcol( term_screen *ts )
 {
 	int ret=-1;
-	int fret=-1;
+	int orig_c;
+	int cur_c;
+
+	/* get initial cursor position */
+	if ( (orig_c = term_cur_pos_c( ts )) == -1 )
+		goto exit_error;
+
+
+	/* go to right marging and get position */
+	if ( write( ts->ofd, T_ESC "[999C", 6 ) != 6 )
+		goto exit_error;
+	if ( (cur_c = term_cur_pos_c( ts )) == -1 )
+		goto exit_error;
+	ret = cur_c;
+
+	/* restore position */
+	{
+		char buf[32];
+		snprintf( buf, 32, T_ESC "[" "%d" "D", cur_c-orig_c);
+		write( ts->ofd, buf, strlen(buf) );
+	}
+
+	return ret;
+
+exit_error:
+	return -1;
+
+}
+
+
+int term_get_maxrow( term_screen *ts )
+{
+	int ret=-1;
+	int orig_r;
+	int cur_r;
+
+	/* get initial cursor position */
+	if ( (orig_r = term_cur_pos_r( ts )) == -1 )
+		goto exit_error;
+
+
+	/* go to right marging and get position */
+	if ( write( ts->ofd, T_ESC "[999B", 6 ) != 6 )
+		goto exit_error;
+	if ( (cur_r = term_cur_pos_r( ts )) == -1 )
+		goto exit_error;
+	ret = cur_r;
+
+	//PNL();
+	/* restore position */
+	{
+		char buf[32];
+		snprintf( buf, 32, T_ESC "[" "%d" "A", cur_r-orig_r);
+		write( ts->ofd, buf, strlen(buf) );
+	}
+
+	//PNL();
+
+	return ret;
+
+exit_error:
+	//PNL();
+	return -1;
+}
+
+int term_cur_pos( term_screen *ts )
+{
+	int ret=-1;
+	return ret;
+}
 
-	struct winsize w;
+int term_cur_pos_c( term_screen *ts )
+{
+	unsigned int i;
+	int row, col;
+	char buf[32];
 	
+	if ( write( ts->ofd, "\x1b[6n", 4 ) != 4 ) goto exit_error;
 	
-	fret = ioctl(0, TIOCGWINSZ, &w );
-	if ( fret == 0 )
+	i = 0;
+	while (i < sizeof(buf)-1)
 	{
-		return w.ws_col;
+		if ( read( ts->ifd, buf+i,1 ) != 1 ) break;
+		if (buf[i] == 'R') break;
+		i++;
 	}
+	buf[i] = '\0';
 	
+	/* Parse terminal response */
+	if ( buf[0] != '\x1b' || buf[1] != '[' ) goto exit_error;
+	if ( sscanf( buf+2, "%d;%d", &row, &col) != 2 ) goto exit_error;
 
+	return col;
+exit_error:
 	return -1;
 }
 
 
-int term_get_row(  )
+int term_cur_pos_r( term_screen *ts )
 {
-	int ret=-1;
-	int fret=-1;
-
-	struct winsize w;
+	unsigned int i;
+	int row, col;
+	char buf[32];
 	
+	if ( write( ts->ofd, "\x1b[6n", 4 ) != 4 ) goto exit_error;
 	
-	fret = ioctl(0, TIOCGWINSZ, &w );
-	if ( fret == 0 )
+	i = 0;
+	while (i < sizeof(buf)-1)
 	{
-		return w.ws_row;
+		if ( read( ts->ifd, buf+i,1 ) != 1 ) break;
+		if (buf[i] == 'R') break;
+		i++;
 	}
+	buf[i] = '\0';
 	
+	/* Parse terminal response */
+	if ( buf[0] != '\x1b' || buf[1] != '[' ) goto exit_error;
+	if ( sscanf( buf+2, "%d;%d", &row, &col) != 2 ) goto exit_error;
+
+	return row;
+exit_error:
 	return -1;
 }
 
+
+int term_cur_set_c( term_screen *ts )
+{
+
+}
+
+
+int term_cur_set_r( term_screen *ts )
+{
+
+}
+
+int term_set_speed( term_screen *ts )
+{
+	int ret = -1;
+	return ret;
+}
+
+int term_clr_scr( term_screen *ts )
+{
+	int ret = 0;
+
+	if ( write( ts->ofd, T_ESC "[H" T_ESC "[2J", 7 ) <= 0 );;
+
+	return ret;
+}
+
+
+int term_set_raw_mode( term_screen *ts )
+{
+	int ret = 0;
+
+	if ( tcgetattr( ts->ifd, &ts->orig ) == -1 ) goto exit_error;
+
+
+	ts->raw = ts->orig; /* modify the original mode */
+	/* input modes: no break, no CR to NL, no parity check, no strip char,
+	 * no start/stop output control. */
+	ts->raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
+	/* output modes - disable post raw */
+	ts->raw.c_oflag &= ~(OPOST);
+	/* control modes - set 8 bit chars */
+	ts->raw.c_cflag |= (CS8);
+	/* local modes - choing off, canonical off, no extended functions,
+	 * no signal chars (^Z,^C) */
+	ts->raw.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
+	/* control chars - set return condition: min number of bytes and timer.
+	 * We want read to return every single byte, without timeout. */
+	ts->raw.c_cc[VMIN] = 1; 
+	ts->raw.c_cc[VTIME] = 0; /* 1 byte, no timer */
+
+	/* put terminal in raw mode after flushing */
+	if (tcsetattr( ts->ifd, TCSAFLUSH, &ts->raw) < 0) goto exit_error;
+
+
+	return ret;
+
+exit_error:
+	errno = ENOTTY;
+	return -1;
+
+}
+
+
+
+void term_set_orig_mode( term_screen *ts )
+{
+	tcsetattr( ts->ifd, TCSAFLUSH, &ts->orig );
+}
\ No newline at end of file
diff --git a/libterm/term.h b/libterm/term.h
index 4565571..010ed1b 100644
--- a/libterm/term.h
+++ b/libterm/term.h
@@ -1,22 +1,41 @@
 #ifndef __LIBTERM_TERM_H
 #define __LIBTERM_TERM_H
 
+#include <termios.h>
+#include <unistd.h>
 #include <stdlib.h>
 #include <stdio.h>
+#include <errno.h>
 #include <string.h>
-
+#include <stdlib.h>
+#include <ctype.h>
+#include <sys/types.h>
 #include <sys/ioctl.h>
+#include <unistd.h>
 
 #include "screen_modes.h"
 
+
 typedef struct term_screen
 {
+	int ifd, ofd;
+	struct termios orig;
+	struct termios raw;
 	screen_mode_e mode;
 	int term_col, term_row;
 } term_screen;
 
-int term_init_data( term_screen* );
-int term_get_col(  );
-int term_get_row(  );
+int term_init( term_screen* );
+int term_get_maxcol( term_screen* );
+int term_get_maxrow( term_screen* );
+int term_cur_pos( term_screen* );
+int term_cur_pos_c( term_screen* );
+int term_cur_pos_r( term_screen* );
+int term_cur_set_c( term_screen* );
+int term_cur_set_r( term_screen* );
+int term_set_speed( term_screen* );
+int term_clr_scr( term_screen* );
+int term_set_raw_mode( term_screen* );
+void term_set_orig_mode( term_screen* );
 
 #endif