From cc4fb936a8d95b78ff71548d7b6919fedec0dc16 Mon Sep 17 00:00:00 2001
From: timb <opuscule@gmail.com>
Date: Thu, 16 Apr 2015 10:28:33 -0700
Subject: import mirc/irssi colorcodes

---
 js/parse.js | 131 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 js/parse.js

(limited to 'js/parse.js')

diff --git a/js/parse.js b/js/parse.js
new file mode 100644
index 0000000..8697afd
--- /dev/null
+++ b/js/parse.js
@@ -0,0 +1,131 @@
+(function(){
+
+var char_color = '\x03';
+var regexp_color = /(^[\d]{1,2})?(?:,([\d]{1,2}))?/;
+
+var style_chars = {
+  '\x02': 'bold',
+  '\x1d': 'italic',
+  '\x1f': 'underline',
+  '\x0f': 'reset',
+  '\x16': 'inverse'
+};
+
+var Style = function(style){
+  this.b = style.b;
+  this.i = style.i;
+  this.u = style.u;
+  this.fg = style.fg;
+  this.bg = style.bg;
+};
+
+var style_fns = {};
+
+style_fns.bold = function(style){ style.b = !style.b };
+
+style_fns.italic = function(style){ style.i = !style.i };
+
+style_fns.underline = function(style){ style.u = !style.u };
+
+style_fns.inverse = function(style){
+  var tmp = style.fg;
+  style.fg = style.bg;
+  style.bg = tmp;
+};
+
+style_fns.reset = function(style, base_style){
+  style.b =  base_style.b;
+  style.i =  base_style.i;
+  style.u =  base_style.u;
+  style.fg = base_style.fg;
+  style.bg = base_style.bg;
+};
+
+var colorcode_to_json = function(string, opts){
+  opts = opts || {};
+  var d = colorcode_to_json.defaults;
+
+  var base_style = {
+    b:  "b" in opts ? opts.b : d.b,
+    i:  "i" in opts ? opts.i : d.i,
+    u:  "u" in opts ? opts.u : d.u,
+    fg: "fg" in opts ? opts.fg : d.fg,
+    bg: "bg" in opts ? opts.bg : d.bg
+  };
+
+  var lines_in = string.split(/\r?\n/);
+  var lines_out = [];
+  var w = 0, h = 0;
+
+  for (var i=0; i<lines_in.length; i++){
+    var line = lines_in[i];
+    if (line.length === 0) continue; // skip blank lines
+    var json_line = line_to_json(line, base_style);
+    if (w < json_line.length) w = json_line.length;
+    lines_out.push(json_line);
+    h++;
+  }
+
+  return {w:w, h:h, lines:lines_out};
+};
+
+colorcode_to_json.defaults = {
+  b: false
+, i: false
+, u: false
+, fg: 0 
+, bg: 1
+};
+
+var line_to_json = function(line, base_style){
+  var out = [];
+  var pos = -1;
+  var len = line.length -1;
+  var char;
+  var style = new Style(base_style); 
+  
+  while (pos < len){ pos++;
+
+    char = line[pos];
+    
+    // next char is a styling char
+    if (char in style_chars){
+      style_fns[style_chars[char]](style, base_style);
+      continue;
+    }
+
+    // next char is a color styling char, with possible color nums after
+    if (char === char_color){
+      var matches = line.substr(pos+1,5).match(regexp_color);
+      
+      // \x03 without color code is a soft style reset 
+      if (matches[1] === undefined && matches[2] === undefined) {
+        style.fg = base_style.fg;
+        style.bg = base_style.bg;
+        continue;
+      }
+
+      if (matches[1] !== undefined)
+        style.fg = Number(matches[1]);
+
+      if (matches[2] !== undefined)
+        style.bg = Number(matches[2]);
+
+      pos += matches[0].length;
+      continue;
+       
+    }
+
+    // otherwise, next char is treated as normal content
+    var data = new Style(style);
+    //data.value = char;
+    data.value = char.charCodeAt(0);
+
+    out.push(data);
+  }
+  return out;
+};
+
+window.colorcode_to_json = colorcode_to_json;
+
+})();
-- 
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