From d5553b23c25dc5467ec718f4e216ba310639d74f Mon Sep 17 00:00:00 2001
From: mcmlxxix <>
Date: Wed, 29 Aug 2012 16:36:08 +0000
Subject: [PATCH] ANSI parsing insanity
---
exec/load/graphic.js | 323 +++++++++++++++++++++++++++++--------------
1 file changed, 216 insertions(+), 107 deletions(-)
diff --git a/exec/load/graphic.js b/exec/load/graphic.js
index 7f763f3466..053665bfcf 100644
--- a/exec/load/graphic.js
+++ b/exec/load/graphic.js
@@ -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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