Corrected path merging

plugins/mergePaths.js

@@ -17,13 +17,7 @@ exports.fn = function(item) {
     if (item.isElem() && !item.isEmpty()) {
 
         var prevContentItem,
-            delim = '',
-            prevContentItemKeys = null,
-            prevItemPathClosed = false,
-            contentItemKeys = null,
-            contentItemPathClosed = false,
-            equalData,
-            attrName;
+            prevContentItemKeys = null;
 
         item.content = item.content.filter(function(contentItem) {
 
@@ -35,56 +29,36 @@ exports.fn = function(item) {
                 contentItem.hasAttr('d')
             ) {
 
-                prevItemPathClosed =  prevContentItem.attr('d').value.charAt(prevContentItem.attr('d').value.length-1) === 'z';
-                contentItemPathClosed = contentItem.attr('d').value.charAt(contentItem.attr('d').value.length-1) === 'z';
-
-                if (!prevItemPathClosed && contentItemPathClosed){
-                  //console.log('Previous path not closed, current plath closed', prevContentItem.attr('d').value, contentItem.attr('d').value);
-                  prevContentItem = contentItem;
-                  prevContentItemKeys = null;
-                  return true;
-                }
-
-                if (prevContentItemKeys === null){
+                if (prevContentItemKeys == null) {
                     prevContentItemKeys = Object.keys(prevContentItem.attrs);
                 }
 
-                contentItemKeys = Object.keys(contentItem.attrs);
-                if (contentItemKeys.length !== 1 || prevContentItemKeys.length !== 1){
-                    if (contentItemKeys.length !== prevContentItemKeys.length){
+                var contentItemKeys = Object.keys(contentItem.attrs);
+                if (contentItemKeys.length > 1 || prevContentItemKeys.length > 1) {
+                    if (contentItemKeys.length != prevContentItemKeys.length) {
                         prevContentItem = contentItem;
                         prevContentItemKeys = null;
                         return true;
                     }
 
-                    equalData = true;
-                    for(var i = 0, I = contentItemKeys.length; i < I; i++){
-                      attrName = contentItemKeys[i];
-                      if (attrName != 'd'){
-                        if(typeof prevContentItem.attrs[attrName] === 'undefined'){
-                          equalData = false;
-                          break;
-                        } else if (prevContentItem.attrs[attrName].value !== contentItem.attrs[attrName].value){
-                          equalData = false;
-                          break;
-                        }
-                      }
-                    }
-                    if (!equalData){
+                    var equalData = contentItemKeys.every(function(key) {
+                            return key == 'd' ||
+                                prevContentItem.hasAttr(key) &&
+                                prevContentItem.attr(key).value == contentItem.attr(key).value;
+                        });
+                    if (!equalData) {
                         prevContentItem = contentItem;
                         prevContentItemKeys = null;
                         return true;
                     }
                 }
-                // "zM", but "z m"
-                // looks like a FontForge parsing bug
-                if (contentItem.attr('d').value.charAt(0) === 'm') {
-                    delim = ' ';
-                } else {
-                    delim = ''; // reset delim from looping
-                }
 
-                prevContentItem.attr('d').value += delim + contentItem.attr('d').value;
+                prevContentItem.attr('d').value += contentItem.attr('d').value.replace(/m/i, 'M');
+
+                var pathJS = prevContentItem.pathJS;
+                if (pathJS) {
+                    pathJS.push.apply(pathJS, contentItem.pathJS);
+                }
                 return false;
             }
 

test/plugins/mergePaths.01.svg

@@ -11,8 +11,7 @@
 @@@
 
 <svg xmlns="http://www.w3.org/2000/svg">
-    <path d="M 0,0 zM 10,10 zM 20,20"/>
-    <path d="M 30,30 z"/>
+    <path d="M 0,0 zM 10,10 zM 20,20M 30,30 z"/>
     <path d="M 30,30 z" fill="#f00"/>
-    <path d="M 40,40 z m 50,50 z"/>
+    <path d="M 40,40 zM 50,50 z"/>
 </svg>

test/plugins/mergePaths.02.svg

@@ -18,10 +18,8 @@
 @@@
 
 <svg xmlns="http://www.w3.org/2000/svg">
-    <path d="M 0,0 zM 10,10 zM 20,20" fill="#fff" stroke="#333"/>
-    <path d="M 30,30 z" fill="#fff" stroke="#333"/>
+    <path d="M 0,0 zM 10,10 zM 20,20M 30,30 z" fill="#fff" stroke="#333"/>
     <path d="M 30,30 z" fill="#f00"/>
-    <path d="M 40,40 z m 50,50 zM 40,40 m 50,50"/>
-    <path d="M 40,40 z m 50,50 zM 40,40 m 50,50" fill="#fff" stroke="#333"/>
-    <path d="m 50,50 z" fill="#fff" stroke="#333"/>
+    <path d="M 40,40 zM 50,50 zM 40,40M 50,50"/>
+    <path d="M 40,40 zM 50,50 zM 40,40M 50,50M 50,50 z" fill="#fff" stroke="#333"/>
 </svg>