2 files changed, 80 insertions, 0 deletions
diff --git a/build-tools/lib/wordwrap/LICENSE b/build-tools/lib/wordwrap/LICENSE
new file mode 100644
index 00000000..e65c0b24
--- /dev/null
+++ b/build-tools/lib/wordwrap/LICENSE
@@ -0,0 +1,4 @@
+Copyright 2011 James Halliday (mail@substack.net)
+
+This project is free software released under the MIT license:
+http://www.opensource.org/licenses/mit-license.php 
diff --git a/build-tools/lib/wordwrap/index.js b/build-tools/lib/wordwrap/index.js
new file mode 100644
index 00000000..c9bc9452
--- /dev/null
+++ b/build-tools/lib/wordwrap/index.js
@@ -0,0 +1,76 @@
+var wordwrap = module.exports = function (start, stop, params) {
+    if (typeof start === 'object') {
+        params = start;
+        start = params.start;
+        stop = params.stop;
+    }
+    
+    if (typeof stop === 'object') {
+        params = stop;
+        start = start || params.start;
+        stop = undefined;
+    }
+    
+    if (!stop) {
+        stop = start;
+        start = 0;
+    }
+    
+    if (!params) params = {};
+    var mode = params.mode || 'soft';
+    var re = mode === 'hard' ? /\b/ : /(\S+\s+)/;
+    
+    return function (text) {
+        var chunks = text.toString()
+            .split(re)
+            .reduce(function (acc, x) {
+                if (mode === 'hard') {
+                    for (var i = 0; i < x.length; i += stop - start) {
+                        acc.push(x.slice(i, i + stop - start));
+                    }
+                }
+                else acc.push(x)
+                return acc;
+            }, [])
+        ;
+        
+        return chunks.reduce(function (lines, rawChunk) {
+            if (rawChunk === '') return lines;
+            
+            var chunk = rawChunk.replace(/\t/g, '    ');
+            
+            var i = lines.length - 1;
+            if (lines[i].length + chunk.length > stop) {
+                lines[i] = lines[i].replace(/\s+$/, '');
+                
+                chunk.split(/\n/).forEach(function (c) {
+                    lines.push(
+                        new Array(start + 1).join(' ')
+                        + c.replace(/^\s+/, '')
+                    );
+                });
+            }
+            else if (chunk.match(/\n/)) {
+                var xs = chunk.split(/\n/);
+                lines[i] += xs.shift();
+                xs.forEach(function (c) {
+                    lines.push(
+                        new Array(start + 1).join(' ')
+                        + c.replace(/^\s+/, '')
+                    );
+                });
+            }
+            else {
+                lines[i] += chunk;
+            }
+            
+            return lines;
+        }, [ new Array(start + 1).join(' ') ]).join('\n');
+    };
+};
+
+wordwrap.soft = wordwrap;
+
+wordwrap.hard = function (start, stop) {
+    return wordwrap(start, stop, { mode : 'hard' });
+};