include base tags for directionalCombo in taginfo output (#222)

Author: k-yle

lib/build.js

@@ -488,7 +488,7 @@ function generateTranslations(fields, presets, tstrings, searchableFieldIDs) {
 
 function generateTaginfo(presets, fields, deprecated, discarded, tstrings, projectInfo) {
 
-  const packageInfo = JSON.parse(fs.readFileSync('./package.json'));
+  const packageInfo = JSON.parse(fs.readFileSync('./package.json', 'utf8'));
 
   if (!projectInfo.name) projectInfo.name = packageInfo.name;
   if (!projectInfo.description) projectInfo.description = packageInfo.description;
@@ -559,6 +559,13 @@ function generateTaginfo(presets, fields, deprecated, discarded, tstrings, proje
     const keys = field.keys || (field.key && [field.key]) || [];
     const isRadio = (field.type === 'radio' || field.type === 'structureRadio');
 
+    if (field.type === 'directionalCombo') {
+      // for directionalCombo, only :left and :right are included in field.keys,
+      // so we need to explicitly add the two other possibilities.
+      const base = field.key.replace(/:both$/, '');
+      keys.push(base, `${base}:both`);
+    }
+
     keys.forEach(key => {
       let tag = { key: key };