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Commit d5553b23 authored by mcmlxxix's avatar mcmlxxix
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ANSI parsing insanity

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with 216 additions and 107 deletions
exec/load/graphic.js
+ 216
− 107
View file @ d5553b23
......@@ -53,6 +53,7 @@ function Graphic(w,h,attr,ch)
this.scroll=Graphic_scroll;
this.putmsg=Graphic_putmsg;
this.resize=Graphic_resize;
this.parseANSI=Graphic_parseANSI;
}
function Graphic_clear()
{
......@@ -206,114 +207,8 @@ function Graphic_load(filename)
if(!(f.open("r",true,4096)))
return(false);
var lines=f.readAll();
this.parseAnsi(lines);
f.close();
var attr = this.attr;
var bg = BG_BLACK;
var fg = LIGHTGRAY;
var i = 0;
var y = 0;
while(lines.length > 0 && y < this.height) {
var x = 0;
var line = lines.shift();
/* parse 'ATCODES'??
line = line.replace(/@(.*)@/g,
function (str, code, offset, s) {
return bbs.atcode(code);
}
);
*/
while(line.length > 0 && x < this.width) {
/* parse an attribute sequence*/
var m = line.match(/^\x1b\[(\d+);?(\d*);?(\d*)m/);
if(m !== null) {
line = line.substr(m.shift().length);
if(m[0] == 0) {
bg = BG_BLACK;
fg = LIGHTGRAY;
i = 0;
m.shift();
}
if(m[0] == 1) {
i = HIGH;
m.shift();
}
if(m[0] >= 40) {
switch(Number(m.shift())) {
case 40:
bg = BG_BLACK;
break;
case 41:
bg = BG_RED;
break;
case 42:
bg = BG_GREEN;
break;
case 43:
bg = BG_BROWN;
break;
case 44:
bg = BG_BLUE;
break;
case 45:
bg = BG_MAGENTA;
break;
case 46:
bg = BG_CYAN;
break;
case 47:
bg = BG_LIGHTGRAY;
break;
}
}
if(m[0] >= 30) {
switch(Number(m.shift())) {
case 30:
fg = BLACK;
break;
case 31:
fg = RED;
break;
case 32:
fg = GREEN;
break;
case 33:
fg = BROWN;
break;
case 34:
fg = BLUE;
break;
case 35:
fg = MAGENTA;
break;
case 36:
fg = CYAN;
break;
case 37:
fg = LIGHTGRAY;
break;
}
}
attr = bg + fg + i;
continue;
}
/* parse a positional sequence */
var n = line.match(/^\x1b\[(\d+)C/);
if(n !== null) {
line = line.substr(n.shift().length);
x+=Number(n.shift());
continue;
}
/* set character and attribute */
var ch = line[0];
line = line.substr(1);
this.data[x][y]=new Graphic_sector(ch,attr);
x++;
}
y++;
}
break;
case "BIN":
if(!(f.open("rb",true,4096)))
......@@ -345,6 +240,220 @@ function Graphic_load(filename)
}
return(true);
}
function Graphic_parseANSI(lines)
{
var attr = this.attr;
var bg = 0;
var fg = 0;
var i = 0;
var saved = {};
var y = 0;
while(lines.length > 0) {
var x = 0;
var line = lines.shift();
/* parse 'ATCODES'??
line = line.replace(/@(.*)@/g,
function (str, code, offset, s) {
return bbs.atcode(code);
}
);
*/
while(line.length > 0) {
/* parse an attribute sequence*/
var m = line.match(/^\x1b\[(\d*);?(\d*);?(\d*)m/);
if(m !== null) {
line = line.substr(m.shift().length);
if(m[0] == 0) {
bg = BG_BLACK;
fg = LIGHTGRAY;
i = 0;
m.shift();
}
if(m[0] == 1) {
i = HIGH;
m.shift();
}
if(m[0] >= 40) {
switch(Number(m.shift())) {
case 40:
bg = BG_BLACK;
break;
case 41:
bg = BG_RED;
break;
case 42:
bg = BG_GREEN;
break;
case 43:
bg = BG_BROWN;
break;
case 44:
bg = BG_BLUE;
break;
case 45:
bg = BG_MAGENTA;
break;
case 46:
bg = BG_CYAN;
break;
case 47:
bg = BG_LIGHTGRAY;
break;
}
}
if(m[0] >= 30) {
switch(Number(m.shift())) {
case 30:
fg = BLACK;
break;
case 31:
fg = RED;
break;
case 32:
fg = GREEN;
break;
case 33:
fg = BROWN;
break;
case 34:
fg = BLUE;
break;
case 35:
fg = MAGENTA;
break;
case 36:
fg = CYAN;
break;
case 37:
fg = LIGHTGRAY;
break;
}
}
attr = bg + fg + i;
continue;
}
/* parse absolute character position */
var m = line.match(/^\x1b\[(\d*);?(\d*)[Hf]/);
if(m !== null) {
line = line.substr(m.shift().length);
if(m.length==0) {
x=0;
y=0;
}
else {
if(m[0])
y = Number(m.shift())-1;
if(m[0])
x = Number(m.shift())-1;
}
continue;
}
/* ignore a bullshit sequence */
var n = line.match(/^\x1b\[\?7h/);
if(n !== null) {
line = line.substr(n.shift().length);
continue;
}
/* parse an up positional sequence */
var n = line.match(/^\x1b\[(\d*)A/);
if(n !== null) {
line = line.substr(n.shift().length);
var chars = n.shift();
if(chars < 1)
y-=1;
else
y-=Number(chars);
continue;
}
/* parse a down positional sequence */
var n = line.match(/^\x1b\[(\d*)B/);
if(n !== null) {
line = line.substr(n.shift().length);
var chars = n.shift();
if(chars < 1)
y+=1;
else
y+=Number(chars);
continue;
}
/* parse a forward positional sequence */
var n = line.match(/^\x1b\[(\d*)C/);
if(n !== null) {
line = line.substr(n.shift().length);
var chars = n.shift();
if(chars < 1)
x+=1;
else
x+=Number(chars);
continue;
}
/* parse a backward positional sequence */
var n = line.match(/^\x1b\[(\d*)D/);
if(n !== null) {
line = line.substr(n.shift().length);
var chars = n.shift()
if(chars < 1)
x-=1;
else
x-=Number(chars);
continue;
}
/* parse a clear screen sequence */
var n = line.match(/^\x1b\[2J/);
if(n !== null) {
line = line.substr(n.shift().length);
continue;
}
/* parse save cursor sequence */
var n = line.match(/^\x1b\[s/);
if(n !== null) {
line = line.substr(n.shift().length);
saved.x = x;
saved.y = y;
continue;
}
/* parse restore cursor sequence */
var n = line.match(/^\x1b\[u/);
if(n !== null) {
line = line.substr(n.shift().length);
x = saved.x;
y = saved.y;
continue;
}
/* set character and attribute */
var ch = line[0];
line = line.substr(1);
/* validate position */
if(y<0)
y=0;
if(x<0)
x=0;
if(x>=this.width) {
x=0;
y++;
}
if(!this.data[x])
this.data[x]=[];
this.data[x][y]=new Graphic_sector(ch,attr);
x++;
}
y++;
}
}
function Graphic_write(filename)
{
var x;
......
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