Add support for resolving an alias from a pkg name in browser REPL

kgryte · kgryte · commit cfdeacad3cba · 2017-07-18T14:29:25.000-07:00
diff --git a/lib/node_modules/@stdlib/repl/scripts/browser.js b/lib/node_modules/@stdlib/repl/scripts/browser.js
@@ -5,6 +5,7 @@
 var getKeys = require( 'object-keys' ).shim();
 var vdom2html = require( 'vdom-to-html' );
 var hasOwnProp = require( '@stdlib/assert/has-own-property' );
+var isString = require( '@stdlib/assert/is-string' ).isPrimitive;
 var deepGet = require( '@stdlib/utils/deep-get' );
 var setReadOnly = require( '@stdlib/utils/define-read-only-property' );
 var namespace = require( '@stdlib/namespace' );
@@ -15,6 +16,7 @@ var docs = require( '@stdlib/repl/help' );
 
 var NO_HELP_TEXT = 'No help information available.';
 var NO_PKG_TEXT = 'Unrecognized alias.';
+var NO_ALIAS_TEXT = 'Unrecognized package name.';
 var NAMESPACE = namespace();
 var DOCS = docs();
 
@@ -90,6 +92,27 @@ function alias2pkg( alias ) {
 	console.log( txt ); // eslint-disable-line no-console
 } // end FUNCTION alias2pkg()
 
+/**
+* Prints the alias corresponding to a provided package name.
+*
+* @private
+* @param {string} pkg - package name
+* @throws {TypeError} must provide a string
+* @returns {void}
+*/
+function pkg2alias( pkg ) {
+	var i;
+	if ( !isString( pkg ) ) {
+		throw new TypeError( 'invalid input argument. Must provide a string. Value: `'+pkg+'`.' );
+	}
+	for ( i = 0; i < NAMESPACE.length; i++ ) {
+		if ( pkg === NAMESPACE[ i ].path ) {
+			return console.log( NAMESPACE[ i ].alias ); // eslint-disable-line no-console
+		}
+	}
+	console.log( NO_ALIAS_TEXT ); // eslint-disable-line no-console
+} // end FUNCTION pkg2alias()
+
 
 // MAIN //
 
@@ -115,7 +138,8 @@ function main() {
 		'_help': help, // Firefox devtools already aliases `help` (and `?`) to a read-only value :(
 		'require': require,
 		'namespace': ns,
-		'alias2pkg': alias2pkg
+		'alias2pkg': alias2pkg,
+		'pkg2alias': pkg2alias
 	};
 	paths = [];
 	for ( i = 0; i < NAMESPACE.length; i++ ) {
