Added node-modules

node_modules/jade/lib/runtime.js

@@ -0,0 +1,199 @@
+
+/*!
+ * Jade - runtime
+ * Copyright(c) 2010 TJ Holowaychuk <tj@vision-media.ca>
+ * MIT Licensed
+ */
+
+/**
+ * Lame Array.isArray() polyfill for now.
+ */
+
+if (!Array.isArray) {
+  Array.isArray = function(arr){
+    return '[object Array]' == Object.prototype.toString.call(arr);
+  };
+}
+
+/**
+ * Lame Object.keys() polyfill for now.
+ */
+
+if (!Object.keys) {
+  Object.keys = function(obj){
+    var arr = [];
+    for (var key in obj) {
+      if (obj.hasOwnProperty(key)) {
+        arr.push(key);
+      }
+    }
+    return arr;
+  }
+}
+
+/**
+ * Merge two attribute objects giving precedence
+ * to values in object `b`. Classes are special-cased
+ * allowing for arrays and merging/joining appropriately
+ * resulting in a string.
+ *
+ * @param {Object} a
+ * @param {Object} b
+ * @return {Object} a
+ * @api private
+ */
+
+exports.merge = function merge(a, b) {
+  var ac = a['class'];
+  var bc = b['class'];
+
+  if (ac || bc) {
+    ac = ac || [];
+    bc = bc || [];
+    if (!Array.isArray(ac)) ac = [ac];
+    if (!Array.isArray(bc)) bc = [bc];
+    a['class'] = ac.concat(bc).filter(nulls);
+  }
+
+  for (var key in b) {
+    if (key != 'class') {
+      a[key] = b[key];
+    }
+  }
+
+  return a;
+};
+
+/**
+ * Filter null `val`s.
+ *
+ * @param {*} val
+ * @return {Boolean}
+ * @api private
+ */
+
+function nulls(val) {
+  return val != null && val !== '';
+}
+
+/**
+ * join array as classes.
+ *
+ * @param {*} val
+ * @return {String}
+ * @api private
+ */
+
+function joinClasses(val) {
+  return Array.isArray(val) ? val.map(joinClasses).filter(nulls).join(' ') : val;
+}
+
+/**
+ * Render the given attributes object.
+ *
+ * @param {Object} obj
+ * @param {Object} escaped
+ * @return {String}
+ * @api private
+ */
+
+exports.attrs = function attrs(obj, escaped){
+  var buf = []
+    , terse = obj.terse;
+
+  delete obj.terse;
+  var keys = Object.keys(obj)
+    , len = keys.length;
+
+  if (len) {
+    buf.push('');
+    for (var i = 0; i < len; ++i) {
+      var key = keys[i]
+        , val = obj[key];
+
+      if ('boolean' == typeof val || null == val) {
+        if (val) {
+          terse
+            ? buf.push(key)
+            : buf.push(key + '="' + key + '"');
+        }
+      } else if (0 == key.indexOf('data') && 'string' != typeof val) {
+        buf.push(key + "='" + JSON.stringify(val) + "'");
+      } else if ('class' == key) {
+        if (escaped && escaped[key]){
+          if (val = exports.escape(joinClasses(val))) {
+            buf.push(key + '="' + val + '"');
+          }
+        } else {
+          if (val = joinClasses(val)) {
+            buf.push(key + '="' + val + '"');
+          }
+        }
+      } else if (escaped && escaped[key]) {
+        buf.push(key + '="' + exports.escape(val) + '"');
+      } else {
+        buf.push(key + '="' + val + '"');
+      }
+    }
+  }
+
+  return buf.join(' ');
+};
+
+/**
+ * Escape the given string of `html`.
+ *
+ * @param {String} html
+ * @return {String}
+ * @api private
+ */
+
+exports.escape = function escape(html){
+  return String(html)
+    .replace(/&/g, '&amp;')
+    .replace(/</g, '&lt;')
+    .replace(/>/g, '&gt;')
+    .replace(/"/g, '&quot;');
+};
+
+/**
+ * Re-throw the given `err` in context to the
+ * the jade in `filename` at the given `lineno`.
+ *
+ * @param {Error} err
+ * @param {String} filename
+ * @param {String} lineno
+ * @api private
+ */
+
+exports.rethrow = function rethrow(err, filename, lineno, str){
+  if (!(err instanceof Error)) throw err;
+  if ((typeof window != 'undefined' || !filename) && !str) {
+    err.message += ' on line ' + lineno;
+    throw err;
+  }
+  try {
+    str =  str || require('fs').readFileSync(filename, 'utf8')
+  } catch (ex) {
+    rethrow(err, null, lineno)
+  }
+  var context = 3
+    , lines = str.split('\n')
+    , start = Math.max(lineno - context, 0)
+    , end = Math.min(lines.length, lineno + context);
+
+  // Error context
+  var context = lines.slice(start, end).map(function(line, i){
+    var curr = i + start + 1;
+    return (curr == lineno ? '  > ' : '    ')
+      + curr
+      + '| '
+      + line;
+  }).join('\n');
+
+  // Alter exception message
+  err.path = filename;
+  err.message = (filename || 'Jade') + ':' + lineno
+    + '\n' + context + '\n\n' + err.message;
+  throw err;
+};