American English and roundabouts

CHANGELOG.md

@@ -1,6 +1,11 @@
 # Change Log
 All notable changes to this project will be documented in this file. For change log formatting, see http://keepachangelog.com/
 
+## master
+
+- Renamed “traffic circle” to “roundabout” in the English localization. [#256](https://github.com/Project-OSRM/osrm-text-instructions/pull/256)
+- Added an American English localization that only differs from the international English localization by the use of “traffic circle” to refer to classic circular junctions. [#256](https://github.com/Project-OSRM/osrm-text-instructions/pull/256)
+
 ## 0.13.1 2018-07-19
 
 - Updated French localization with articles and prepositions insertion using grammar rules. [#252](https://github.com/Project-OSRM/osrm-text-instructions/pull/252)

languages.js

@@ -3,6 +3,7 @@
 var instructionsDa = require('./languages/translations/da.json');
 var instructionsDe = require('./languages/translations/de.json');
 var instructionsEn = require('./languages/translations/en.json');
+var instructionsEnUs = require('./languages/translations/en-US.json');
 var instructionsEo = require('./languages/translations/eo.json');
 var instructionsEs = require('./languages/translations/es.json');
 var instructionsEsEs = require('./languages/translations/es-ES.json');
@@ -52,6 +53,7 @@ var instructions = {
     'da': instructionsDa,
     'de': instructionsDe,
     'en': instructionsEn,
+    'en-US': instructionsEnUs,
     'eo': instructionsEo,
     'es': instructionsEs,
     'es-ES': instructionsEsEs,
@@ -88,6 +90,7 @@ var abbreviations = {
     'da': abbreviationsDa,
     'de': ebbreviationsDe,
     'en': abbreviationsEn,
+    'en-US': abbreviationsEn,
     'es': abbreviationsEs,
     'fr': abbreviationsFr,
     'he': abbreviationsHe,

languages/overrides/en-US.js

@@ -0,0 +1,21 @@
+/**
+ * Recursively rename roundabouts to traffic circles like in the good old days.
+ */
+function iterate(values) {
+    Object.keys(values).forEach(function (key) {
+        var value = values[key];
+        if (typeof value === 'string') {
+            values[key] = value.replace(/\broundabout\b/g, 'traffic circle');
+        } else if (typeof value === 'object') {
+            iterate(value);
+        }
+    });
+}
+
+module.exports = function(content) {
+    // Only call classic roundabouts (i.e., rotaries) "traffic circles".
+    iterate(content.v5.rotary);
+    iterate(content.v5['exit rotary']);
+
+    return content;
+};