Press n or j to go to the next uncovered block, b, p or k for the previous block.
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* @license Apache-2.0
*
* Copyright (c) 2024 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* eslint-disable no-underscore-dangle */
'use strict';
// MODULES //
var logger = require( 'debug' );
var format = require( '@stdlib/string/format' );
var log = require( './../log.js' );
var SETTINGS = require( './../settings.js' );
var SETTINGS_NAMES = require( './../settings_names.js' );
// VARIABLES //
var debug = logger( 'repl:command:settings' );
// FUNCTIONS //
/**
* Returns settings help text.
*
* @private
* @param {Object} settings - REPL settings
* @returns {string} settings help text
*/
function help( settings ) {
var HELP_TEXT;
var name;
var o;
var i;
HELP_TEXT = '\n';
for ( i = 0; i < SETTINGS_NAMES.length; i++ ) {
name = SETTINGS_NAMES[ i ];
o = SETTINGS[ name ];
HELP_TEXT += name + '\n';
HELP_TEXT += ' ';
HELP_TEXT += o.desc; // TODO: auto-wrap description
HELP_TEXT += format( ' Value: %s.', settings[ name ] );
HELP_TEXT += '\n\n';
}
return HELP_TEXT;
}
// MAIN //
/**
* Returns a callback to be invoked upon calling the `settings` command.
*
* @private
* @param {REPL} repl - REPL instance
* @returns {Function} callback
*/
function command( repl ) {
return onCommand;
/**
* Gets (and sets) REPL settings.
*
* @private
* @param {string} [name] - setting name
* @param {*} [value] - new setting value
* @returns {(void|*)} setting value or undefined
*/
function onCommand() {
var nargs;
var v;
nargs = arguments.length;
if ( nargs === 0 ) {
repl._ostream.write( help( repl._settings ) );
return;
}
if ( nargs === 1 ) {
try {
v = repl.settings( arguments[ 0 ] );
} catch ( err ) {
debug( 'Error: %s', err.message );
repl._ostream.write( format( 'Error: %s\n', err.message ) );
return;
}
return v;
}
try {
repl.settings( arguments[ 0 ], arguments[ 1 ] );
} catch ( err ) {
debug( 'Error: %s', err.message );
repl._ostream.write( format( 'Error: %s\n', err.message ) );
return;
}
log( repl, '\nSuccessfully updated setting.' );
}
}
// EXPORTS //
module.exports = command;
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