better track the resulting javascript too.

16col/idf.js

@@ -0,0 +1,80 @@
+// Generated by CoffeeScript 1.7.1
+(function() {
+  var __hasProp = {}.hasOwnProperty,
+    __extends = function(child, parent) { for (var key in parent) { if (__hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; };
+
+  this.ImageTextModeIDF = (function(_super) {
+    __extends(ImageTextModeIDF, _super);
+
+    function ImageTextModeIDF(options) {
+      var k, v;
+      ImageTextModeIDF.__super__.constructor.apply(this, arguments);
+      this.header = {
+        x0: 0,
+        x1: 0,
+        y0: 0,
+        y1: 0
+      };
+      for (k in options) {
+        if (!__hasProp.call(options, k)) continue;
+        v = options[k];
+        this[k] = v;
+      }
+    }
+
+    ImageTextModeIDF.prototype.parse = function(content) {
+      var attr, buffer, ch, eodata, headerData, i, info, len, offset, x, y, _i;
+      headerData = content.substr(0, 12);
+      if (headerData.length !== 12 || !headerData.match('^\x041.4')) {
+        throw new Error('File is not an IDF');
+      }
+      this.header.x0 = this.unpackShort(headerData.substr(4, 2));
+      this.header.y0 = this.unpackShort(headerData.substr(6, 2));
+      this.header.x1 = this.unpackShort(headerData.substr(8, 2));
+      this.header.y1 = this.unpackShort(headerData.substr(10, 2));
+      eodata = content.length - 48 - 4096;
+      if (content.substr(content.length - 128, 5) === 'SAUCE') {
+        eodata -= 128;
+      }
+      this.parseFontData(content.substr(eodata, 4096));
+      this.parsePaletteData(content.substr(eodata + 4096, 48));
+      y = 0;
+      x = 0;
+      this.screen[y] = [];
+      offset = 12;
+      while (offset < eodata) {
+        buffer = content.substr(offset, 2);
+        info = this.unpackShort(buffer);
+        offset += 2;
+        len = 1;
+        if (info === 1) {
+          len = this.unpackShort(content.substr(offset, 2)) & 255;
+          offset += 2;
+          buffer = content.substr(offset, 2);
+          offset += 2;
+        }
+        ch = buffer.substr(0, 1);
+        attr = this.getByteAt(buffer, 1);
+        for (i = _i = 1; 1 <= len ? _i <= len : _i >= len; i = 1 <= len ? ++_i : --_i) {
+          this.screen[y][x] = {
+            'ch': ch,
+            'attr': attr
+          };
+          x++;
+          if (x > this.header.x1) {
+            x = 0;
+            y++;
+            this.screen[y] = [];
+          }
+        }
+      }
+      if (this.screen[y].length === 0) {
+        return this.screen.pop();
+      }
+    };
+
+    return ImageTextModeIDF;
+
+  })(this.ImageTextMode);
+
+}).call(this);