challenge-algorithms-v2.0-u.../node_modules/jsesc/bin/jsesc

149 lines
3.7 KiB
JavaScript

#!/usr/bin/env node
(function() {
var fs = require('fs');
var stringEscape = require('../jsesc.js');
var strings = process.argv.splice(2);
var stdin = process.stdin;
var data;
var timeout;
var isObject = false;
var options = {};
var log = console.log;
var main = function() {
var option = strings[0];
if (/^(?:-h|--help|undefined)$/.test(option)) {
log(
'jsesc v%s - https://mths.be/jsesc',
stringEscape.version
);
log([
'\nUsage:\n',
'\tjsesc [string]',
'\tjsesc [-s | --single-quotes] [string]',
'\tjsesc [-d | --double-quotes] [string]',
'\tjsesc [-w | --wrap] [string]',
'\tjsesc [-e | --escape-everything] [string]',
'\tjsesc [-t | --escape-etago] [string]',
'\tjsesc [-6 | --es6] [string]',
'\tjsesc [-l | --lowercase-hex] [string]',
'\tjsesc [-j | --json] [string]',
'\tjsesc [-o | --object] [stringified_object]', // `JSON.parse()` the argument
'\tjsesc [-p | --pretty] [string]', // `compact: false`
'\tjsesc [-v | --version]',
'\tjsesc [-h | --help]',
'\nExamples:\n',
'\tjsesc \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
'\tjsesc --json \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
'\tjsesc --json --escape-everything \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
'\tjsesc --double-quotes --wrap \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\'',
'\techo \'f\xF6o \u2665 b\xE5r \uD834\uDF06 baz\' | jsesc'
].join('\n'));
return process.exit(1);
}
if (/^(?:-v|--version)$/.test(option)) {
log('v%s', stringEscape.version);
return process.exit(1);
}
strings.forEach(function(string) {
// Process options
if (/^(?:-s|--single-quotes)$/.test(string)) {
options.quotes = 'single';
return;
}
if (/^(?:-d|--double-quotes)$/.test(string)) {
options.quotes = 'double';
return;
}
if (/^(?:-w|--wrap)$/.test(string)) {
options.wrap = true;
return;
}
if (/^(?:-e|--escape-everything)$/.test(string)) {
options.escapeEverything = true;
return;
}
if (/^(?:-t|--escape-etago)$/.test(string)) {
options.escapeEtago = true;
return;
}
if (/^(?:-6|--es6)$/.test(string)) {
options.es6 = true;
return;
}
if (/^(?:-l|--lowercase-hex)$/.test(string)) {
options.lowercaseHex = true;
return;
}
if (/^(?:-j|--json)$/.test(string)) {
options.json = true;
return;
}
if (/^(?:-o|--object)$/.test(string)) {
isObject = true;
return;
}
if (/^(?:-p|--pretty)$/.test(string)) {
isObject = true;
options.compact = false;
return;
}
// Process string(s)
var result;
try {
if (isObject) {
string = JSON.parse(string);
}
result = stringEscape(string, options);
log(result);
} catch(error) {
log(error.message + '\n');
log('Error: failed to escape.');
log('If you think this is a bug in jsesc, please report it:');
log('https://github.com/mathiasbynens/jsesc/issues/new');
log(
'\nStack trace using jsesc@%s:\n',
stringEscape.version
);
log(error.stack);
return process.exit(1);
}
});
// Return with exit status 0 outside of the `forEach` loop, in case
// multiple strings were passed in.
return process.exit(0);
};
if (stdin.isTTY) {
// handle shell arguments
main();
} else {
// Either the script is called from within a non-TTY context,
// or `stdin` content is being piped in.
if (!process.stdout.isTTY) { // called from a non-TTY context
timeout = setTimeout(function() {
// if no piped data arrived after a while, handle shell arguments
main();
}, 250);
}
data = '';
stdin.on('data', function(chunk) {
clearTimeout(timeout);
data += chunk;
});
stdin.on('end', function() {
strings.push(data.trim());
main();
});
stdin.resume();
}
}());