do not error on empty groups, fixes #53

CHANGELOG.md

@@ -1,3 +1,7 @@
+### 6.0.2
+
+- do not error on empty groups [#53](https://github.com/locize/xliff/issues/53)
+
 ### 6.0.1
 
 - handle empty xliff files [#52](https://github.com/locize/xliff/pull/52)

lib/xliff12ToJs.js

@@ -59,6 +59,7 @@ const xliff12ToJsClb = (str, options, cb) => {
 function createUnits (childElements) {
   return childElements.reduce((parent, child) => {
     const key = child.attributes.id
+    if (!child.elements) return parent
     const children = child.elements.filter((e) => e.name === 'trans-unit' || e.name === 'group')
     if (children.length) {
       parent[key] = createGroupTag(child, children)

lib/xliff2js.js

@@ -57,6 +57,7 @@ const xliffToJsClb = (str, options, cb) => {
 }
 
 function createUnits (parent, initValues) {
+  if (!parent.elements) return {}
   return parent.elements.reduce((file, unit) => {
     const key = unit.attributes.id
     const additionalAttributes = unit.attributes
@@ -85,6 +86,7 @@ function createUnits (parent, initValues) {
 
 function createUnit (unit, initValues) {
   // source, target, note
+  if (!unit.elements) return undefined
   return unit.elements.reduce((unit, segment) => {
     if (['segment', 'notes'].indexOf(segment.name) < 0) return unit
     segment.elements.forEach((element) => {

xliff.js

@@ -928,6 +928,7 @@ var xliff12ToJsClb = function xliff12ToJsClb(str, options, cb) {
 function createUnits(childElements) {
   return childElements.reduce(function (parent, child) {
     var key = child.attributes.id;
+    if (!child.elements) return parent;
     var children = child.elements.filter(function (e) {
       return e.name === 'trans-unit' || e.name === 'group';
     });
@@ -1088,6 +1089,7 @@ var xliffToJsClb = function xliffToJsClb(str, options, cb) {
 };
 
 function createUnits(parent, initValues) {
+  if (!parent.elements) return {};
   return parent.elements.reduce(function (file, unit) {
     var key = unit.attributes.id;
     var additionalAttributes = unit.attributes;
@@ -1125,6 +1127,7 @@ function createUnits(parent, initValues) {
 }
 
 function createUnit(unit, initValues) {
+  if (!unit.elements) return undefined;
   return unit.elements.reduce(function (unit, segment) {
     if (['segment', 'notes'].indexOf(segment.name) < 0) return unit;
     segment.elements.forEach(function (element) {