better track the resulting javascript too.

16col/xbin.js

@@ -0,0 +1,200 @@
+// 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.ImageTextModeXBin = (function(_super) {
+    var ATTRIBUTE_COMPRESSION, CHARACTER_COMPRESSION, COMPRESSED, COMPRESSION_COUNTER, COMPRESSION_TYPE, FIVETWELVE_CHARS, FONT, FULL_COMPRESSION, NON_BLINK, NO_COMPRESSION, PALETTE;
+
+    __extends(ImageTextModeXBin, _super);
+
+    PALETTE = 1;
+
+    FONT = 2;
+
+    COMPRESSED = 4;
+
+    NON_BLINK = 8;
+
+    FIVETWELVE_CHARS = 16;
+
+    NO_COMPRESSION = 0;
+
+    CHARACTER_COMPRESSION = 64;
+
+    ATTRIBUTE_COMPRESSION = 128;
+
+    FULL_COMPRESSION = 192;
+
+    COMPRESSION_TYPE = 192;
+
+    COMPRESSION_COUNTER = 63;
+
+    function ImageTextModeXBin(options) {
+      var k, v;
+      ImageTextModeXBin.__super__.constructor.apply(this, arguments);
+      this.header = {
+        width: 0,
+        height: 0,
+        fontisze: 0,
+        flags: 0
+      };
+      for (k in options) {
+        if (!__hasProp.call(options, k)) continue;
+        v = options[k];
+        this[k] = v;
+      }
+    }
+
+    ImageTextModeXBin.prototype.parse = function(content) {
+      var fontlength, headerData, offset;
+      this.screen = [];
+      headerData = content.substr(0, 11);
+      if (headerData.length !== 11 || !headerData.match('^XBIN\x1a')) {
+        throw new Error('File is not an XBin');
+      }
+      this.header.width = this.unpackShort(headerData.substr(5, 2));
+      this.header.height = this.unpackShort(headerData.substr(7, 2));
+      this.header.fontsize = this.getByteAt(headerData.substr(9, 1));
+      this.header.flags = this.getByteAt(headerData.substr(10, 1));
+      offset = 11;
+      if (this.header.flags & PALETTE) {
+        this.parsePaletteData(content.substr(offset, 48));
+        offset += 48;
+      }
+      if (this.header.flags & FONT) {
+        fontlength = this.header.fontsize;
+        if (this.header.flags & FIVETWELVE_CHARS) {
+          fontlength *= 512;
+        } else {
+          fontlength *= 256;
+        }
+        this.parseFontData(content.substr(offset, fontlength), this.header.fontsize);
+        offset += fontlength;
+      }
+      if (this.header.flags & COMPRESSED) {
+        return this._parse_compressed(content.substr(offset));
+      } else {
+        return this._parse_uncompressed(content.substr(offset));
+      }
+    };
+
+    ImageTextModeXBin.prototype._parse_compressed = function(data) {
+      var attr, ch, counter, info, type, x, y, _results;
+      x = 0;
+      y = 0;
+      this.screen[y] = [];
+      data = data.split('');
+      _results = [];
+      while (info = data.shift()) {
+        info = this.getByteAt(info, 0);
+        if (info === 26) {
+          break;
+        }
+        type = info & COMPRESSION_TYPE;
+        counter = (info & COMPRESSION_COUNTER) + 1;
+        ch = null;
+        attr = null;
+        _results.push((function() {
+          var _results1;
+          _results1 = [];
+          while (counter-- > 0) {
+            switch (type) {
+              case NO_COMPRESSION:
+                ch = data.shift();
+                attr = data.shift();
+                break;
+              case CHARACTER_COMPRESSION:
+                if (ch == null) {
+                  ch = data.shift();
+                }
+                attr = data.shift();
+                break;
+              case ATTRIBUTE_COMPRESSION:
+                if (attr == null) {
+                  attr = data.shift();
+                }
+                ch = data.shift();
+                break;
+              default:
+                if (ch == null) {
+                  ch = data.shift();
+                }
+                if (attr == null) {
+                  attr = data.shift();
+                }
+            }
+            this.screen[y][x] = {
+              ch: ch,
+              attr: this.getByteAt(attr, 0)
+            };
+            x++;
+            if (x === this.header.width) {
+              x = 0;
+              y++;
+              if (y === this.header.height) {
+                break;
+              }
+              if (this.screen[y] == null) {
+                _results1.push(this.screen[y] = []);
+              } else {
+                _results1.push(void 0);
+              }
+            } else {
+              _results1.push(void 0);
+            }
+          }
+          return _results1;
+        }).call(this));
+      }
+      return _results;
+    };
+
+    ImageTextModeXBin.prototype._parse_uncompressed = function(data) {
+      var attr, ch, i, x, y, _i, _ref, _results;
+      x = 0;
+      y = 0;
+      this.screen[y] = [];
+      _results = [];
+      for (i = _i = 0, _ref = data.length - 2; _i <= _ref; i = _i += 2) {
+        ch = data.substr(i, 1);
+        if (ch === "\x1a") {
+          break;
+        }
+        attr = this.getByteAt(data, i + 1);
+        this.screen[y][x] = {
+          'ch': ch,
+          'attr': attr
+        };
+        x++;
+        if (x === this.header.width) {
+          x = 0;
+          y++;
+          if (y === this.header.height) {
+            break;
+          }
+          if (this.screen[y] == null) {
+            _results.push(this.screen[y] = []);
+          } else {
+            _results.push(void 0);
+          }
+        } else {
+          _results.push(void 0);
+        }
+      }
+      return _results;
+    };
+
+    ImageTextModeXBin.prototype.getWidth = function() {
+      return this.header.width;
+    };
+
+    ImageTextModeXBin.prototype.getHeight = function() {
+      return this.header.height;
+    };
+
+    return ImageTextModeXBin;
+
+  })(this.ImageTextMode);
+
+}).call(this);