start of revision control

lib/pre-loader.js

@@ -0,0 +1,36 @@
+/**
+ * <pre> should preserve newlines. Damnit, JSX
+ */
+
+var op = "<pre>";
+var ed = "</pre>";
+
+function hasTokens(input) {
+  return input.indexOf(op) + input.indexOf(ed) >= 0;
+}
+
+function fixPreBlocks(source) {
+  // we can't do this with regexp, unfortunately.
+  var from = 0, curr, term;
+  var newsource = "", pre;
+  for(curr = source.indexOf(op, from); curr !== -1; from = term + ed.length, curr = source.indexOf(op, from)) {
+    newsource += source.substring(from, curr);
+    term = source.indexOf(ed, from);
+    if(term === -1) {
+      // that's a problem...
+      throw new Error("improperly closed LaTeX encountered!");
+    }
+    pre = source.substring(curr, term + ed.length);
+    pre = pre.replace(/\n/g,"{'\\n'}");
+    newsource += pre;
+  }
+  return newsource + source.substring(from);
+}
+
+
+module.exports = function(source) {
+  this.cacheable();
+  if (!hasTokens(source)) return source;
+  return fixPreBlocks(source);
+};
+