mirror of
https://github.com/ksherlock/TwoTerm.git
synced 2024-12-22 22:29:51 +00:00
418 lines
11 KiB
Plaintext
418 lines
11 KiB
Plaintext
//
|
||
// PTSE.mm
|
||
// 2Term
|
||
//
|
||
// Created by Kelvin Sherlock on 7/9/2010.
|
||
// Copyright 2010 __MyCompanyName__. All rights reserved.
|
||
//
|
||
|
||
#include <sys/ttydefaults.h>
|
||
|
||
|
||
#import "PTSE.h"
|
||
|
||
#include "OutputChannel.h"
|
||
#include "Screen.h"
|
||
|
||
#include "algorithm.h"
|
||
|
||
|
||
%%{
|
||
machine console;
|
||
alphtype unsigned int;
|
||
|
||
action nop {}
|
||
|
||
action advance {
|
||
// advance cursor
|
||
if (++cursor.x == 80) {
|
||
cursor.x = 0;
|
||
if (cursor.y >= 24-1) {
|
||
screen->scrollUp();
|
||
} else cursor.y++;
|
||
}
|
||
}
|
||
|
||
arg1 = any ${ _scratch[0] = fc; };
|
||
arg2 = any ${ _scratch[1] = fc; };
|
||
|
||
|
||
|
||
|
||
main := (
|
||
0x00 $nop
|
||
| 0x01 ${
|
||
// A - $01 Move cursor to beginning of line.
|
||
cursor.x = 0;
|
||
}
|
||
| 0x02 ${
|
||
// B - $02 Move cursor to end of line.
|
||
cursor.x = 79;
|
||
}
|
||
| 0x03 $nop
|
||
| 0x04 ${
|
||
// D - Delete current character (under cursor)
|
||
iRect tmp;
|
||
tmp.origin = cursor;
|
||
tmp.size = iSize(80 - cursor.x, 1);
|
||
screen->scrollLeft(tmp);
|
||
}
|
||
|
||
| 0x05 ${
|
||
/* E - $05 */
|
||
//Inquire if using ProTERM Special Emulation
|
||
/*
|
||
* When you send out [CONTROL-E] to a caller using ProTERM
|
||
* Special, the caller’s ProTERM will send back [CONTROL-“]”]
|
||
* (ASCII code 29). This allows a BBS to transparently
|
||
* detect the use of PSE.
|
||
*/
|
||
output->write(29);
|
||
}
|
||
|
||
| 0x06 ${
|
||
/* F - $06 */
|
||
// Insert space at cursor
|
||
iRect tmp;
|
||
tmp.origin = cursor;
|
||
tmp.size = iSize(80 - cursor.x, 1);
|
||
screen->scrollRight(tmp);
|
||
}
|
||
|
||
| 0x07 ${
|
||
/* G - $07 - beep 1000 hz for .1 seconds. */
|
||
NSBeep();
|
||
}
|
||
|
||
| 0x08 ${
|
||
/* H - $08 - Moves cursor left one column;
|
||
if cursor was at beginning of line, moves
|
||
it to end of previous line
|
||
*/
|
||
|
||
if (cursor.x) cursor.x--;
|
||
else {
|
||
cursor.x = 80-1;
|
||
if (cursor.y) cursor.y--;
|
||
else screen->scrollDown();
|
||
}
|
||
}
|
||
|
||
| 0x09 ${
|
||
// control-I
|
||
cursor.x = (cursor.x + 8) & ~7;
|
||
cursor.x = std::min(cursor.x, 72); // verified.
|
||
}
|
||
|
||
| 0x0a ${
|
||
/* J - $0A - Moves cursor down one row; scrolls if needed */
|
||
|
||
if (cursor.y >= 24-1) {
|
||
screen->scrollUp();
|
||
} else cursor.y++;
|
||
|
||
}
|
||
|
||
| 0x0b ${
|
||
/* K - $0B - Move cursor up one line */
|
||
|
||
if (cursor.y == 0) {
|
||
screen->scrollDown();
|
||
} else cursor.y--;
|
||
|
||
}
|
||
|
||
| 0x0c ${
|
||
// control-L
|
||
/* clear text port and home */
|
||
// n.b - PT "home" is 0, 1
|
||
screen->eraseScreen();
|
||
cursor = iPoint(0,0);
|
||
}
|
||
|
||
| 0x0d ${
|
||
// control-M
|
||
/* carriage return */
|
||
cursor.x = 0;
|
||
}
|
||
|
||
| 0x0e ${
|
||
// control-N
|
||
//Set: inverse off, mousetext off.
|
||
_context.flags = Screen::FlagNormal;
|
||
}
|
||
|
||
| 0x0f ${
|
||
// control-O
|
||
//Set: inverse on, mousetext off.
|
||
_context.flags = Screen::FlagInverse;
|
||
}
|
||
|
||
| 0x10 ${
|
||
// control-P
|
||
//Set inverse off, mousetext on.
|
||
_context.flags = Screen::FlagInverse | Screen::FlagMouseText;
|
||
}
|
||
|
||
| 0x11 $nop
|
||
| 0x12 arg1 arg2 ${
|
||
/* ^R */
|
||
|
||
/*
|
||
* This allows a three character code to be used to display
|
||
* multiple characters. For example, to display a window frame,
|
||
* it is necessary to show the top and bottom borders which are
|
||
* long lines of the same character (dashes, underlines, etc.).
|
||
* To draw a 64-character line consisting of equal signs, send
|
||
* [CONTROL-R = @] where “@” is the ASCII code for 64.
|
||
*/
|
||
|
||
uint8_t c = _scratch[0] & 0x7f;
|
||
int count = _scratch[1];
|
||
while (count--) {
|
||
screen->putc(c, _context);
|
||
if (cursor.x++ >= 80) {
|
||
cursor.x = 0;
|
||
if (cursor.y < 23) cursor.y++;
|
||
else screen->scrollUp();
|
||
}
|
||
|
||
}
|
||
|
||
}
|
||
|
||
| 0x13 $nop
|
||
|
||
| 0x14 any any any ${
|
||
//Sound single/dual-tone for duration.
|
||
// [Control-T Tl Control-A D] Sound tone Tl, for duration D
|
||
// [Control-T Tl T2 D] Sound dual tone Tl, T2 for duration D
|
||
/*
|
||
* The tone command has two forms. The first invokes the single-tone
|
||
* generator, which produces relatively pure tones. The second
|
||
* invokes the dual-tone generator, which produces some rather
|
||
* interesting sounds. The three parameters, tone1, tone2, and
|
||
* duration, can all take values from 1 through 127. There is
|
||
* currently no known translation between pitch/duration values
|
||
* and actual frequencies/times.
|
||
*/
|
||
}
|
||
|
||
| 0x15 ${
|
||
/* ^U - Move cursor right one character */
|
||
} $advance
|
||
|
||
| 0x16 ${
|
||
/* CTRL('V') */
|
||
// Insert blank line
|
||
iRect tmp;
|
||
tmp.origin = iPoint(0, cursor.y);
|
||
tmp.size = iSize(80, 24 - cursor.y);
|
||
screen->scrollDown(tmp);
|
||
}
|
||
|
||
| 0x17 ${
|
||
/* CTRL('W') */
|
||
// Clear to end of screen
|
||
|
||
iRect tmp;
|
||
tmp.origin = cursor;
|
||
tmp.size = iSize(80 - cursor.x, 1);
|
||
|
||
screen->eraseRect(tmp);
|
||
|
||
tmp = iRect(0, 0, 80, 24);
|
||
tmp.origin.y = cursor.y+1;
|
||
tmp.size.height -= cursor.y+1;
|
||
screen->eraseRect(tmp);
|
||
}
|
||
|
||
| 0x18 ${
|
||
// CTRL('X'):
|
||
// Home cursor (move to upper left corner)
|
||
// n.b. -- Proterm status bar on line 1. "home" is y=1.
|
||
cursor = iPoint(0,0);
|
||
|
||
}
|
||
|
||
| 0x19 ${
|
||
// CTRL('Y'):
|
||
/* clear to end of line. */
|
||
|
||
iRect tmp;
|
||
tmp.origin = cursor;
|
||
tmp.size = iSize(80 - cursor.x, 1);
|
||
|
||
screen->eraseRect(tmp);
|
||
}
|
||
|
||
| 0x1a ${
|
||
// CTRL('Z'):
|
||
/* Delete current line */
|
||
iRect tmp;
|
||
tmp.origin = iPoint(0, cursor.y);
|
||
tmp.size = iSize(80, 24 - cursor.y);
|
||
screen->scrollUp(tmp);
|
||
|
||
}
|
||
|
||
| 0x1b $nop
|
||
|
||
| 0x1c $nop
|
||
|
||
| 0x1d $nop
|
||
|
||
| 0x1e arg1 arg2 ${
|
||
// CTRL('^'):
|
||
/* goto x y */
|
||
// todo - verify behavior for illegal values.
|
||
cursor.x = clamp(_scratch[0]-32, 0, 80 - 1);
|
||
cursor.y = clamp(_scratch[1]-32, 0, 24 - 1);
|
||
}
|
||
|
||
| 0x1f $nop
|
||
|
||
| 0x20 .. 0x7f ${
|
||
screen->putc(fc, _context);
|
||
} $advance
|
||
|
||
| 0x80..0xff $nop
|
||
|
||
)* $err{ fgoto main; };
|
||
|
||
write data;
|
||
}%%
|
||
|
||
|
||
@implementation PTSE
|
||
|
||
+(void)load
|
||
{
|
||
[EmulatorManager registerClass: self];
|
||
}
|
||
|
||
+(NSString *)name
|
||
{
|
||
return @"Proterm Special Emulation";
|
||
}
|
||
|
||
-(NSString *)name
|
||
{
|
||
return @"Proterm Special Emulation";
|
||
}
|
||
|
||
-(const char *)termName
|
||
{
|
||
return "proterm-special";
|
||
}
|
||
|
||
-(void)reset: (BOOL)hard
|
||
{
|
||
%%write init;
|
||
_context.flags = 0;
|
||
|
||
if (hard) {
|
||
_context.cursor = iPoint(0,0);
|
||
_context.window = iRect(0,0,80,24);
|
||
}
|
||
}
|
||
|
||
-(BOOL)resizable
|
||
{
|
||
return NO;
|
||
}
|
||
|
||
-(struct winsize)defaultSize
|
||
{
|
||
struct winsize ws = { 24, 80, 0, 0 };
|
||
|
||
return ws;
|
||
}
|
||
|
||
-(id)init
|
||
{
|
||
[self reset: YES];
|
||
return self;
|
||
}
|
||
|
||
-(void)initTerm: (struct termios *)term
|
||
{
|
||
// Control-U is used by the up-arrow key.
|
||
term->c_cc[VKILL] = CTRL('X');
|
||
}
|
||
|
||
-(void)processData: (uint8_t *)data length: (size_t)length screen:(Screen *)screen output:(OutputChannel *)output
|
||
{
|
||
|
||
const uint8_t *eof = nullptr;
|
||
const uint8_t *p = data;
|
||
const uint8_t *pe = data + length;
|
||
|
||
auto &cursor = _context.cursor;
|
||
%%write exec;
|
||
screen->setCursor(cursor);
|
||
}
|
||
|
||
-(void)keyDown:(NSEvent *)event screen:(Screen *)screen output:(OutputChannel *)output
|
||
{
|
||
NSEventModifierFlags flags = [event modifierFlags];
|
||
NSString *chars = [event charactersIgnoringModifiers];
|
||
|
||
NSUInteger length = [chars length];
|
||
|
||
for (unsigned i = 0; i < length; ++i)
|
||
{
|
||
unichar uc = [chars characterAtIndex: i];
|
||
|
||
switch (uc)
|
||
{
|
||
case NSEnterCharacter:
|
||
output->write(CTRL('M'));
|
||
break;
|
||
|
||
case NSDeleteCharacter:
|
||
output->write(0x7f);
|
||
break;
|
||
|
||
|
||
// backspace and left arrow use the same code, alas.
|
||
case NSBackspaceCharacter:
|
||
output->write(0x7f);
|
||
break;
|
||
|
||
case NSLeftArrowFunctionKey:
|
||
output->write(CTRL('H'));
|
||
break;
|
||
|
||
case NSRightArrowFunctionKey:
|
||
output->write(CTRL('U'));
|
||
break;
|
||
|
||
case NSUpArrowFunctionKey:
|
||
output->write(CTRL('K'));
|
||
break;
|
||
|
||
case NSDownArrowFunctionKey:
|
||
output->write(CTRL('J'));
|
||
break;
|
||
|
||
|
||
default:
|
||
if (uc <= 0x7f)
|
||
{
|
||
char c = uc;
|
||
if (flags & NSControlKeyMask)
|
||
c = CTRL(c);
|
||
|
||
output->write(c);
|
||
}
|
||
break;
|
||
}
|
||
|
||
|
||
|
||
}
|
||
}
|
||
|
||
@end
|