internet-programming/lab3/node_modules/he/bin/he

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#!/usr/bin/env node
(function() {
var fs = require('fs');
var he = require('../he.js');
var strings = process.argv.splice(2);
var stdin = process.stdin;
var data;
var timeout;
var action;
var options = {};
var log = console.log;
var main = function() {
var option = strings[0];
var count = 0;
if (/^(?:-h|--help|undefined)$/.test(option)) {
log(
'he v%s - https://mths.be/he',
he.version
);
log([
'\nUsage:\n',
'\the [--escape] string',
'\the [--encode] [--use-named-refs] [--everything] [--allow-unsafe] [--decimal] string',
'\the [--decode] [--attribute] [--strict] string',
'\the [-v | --version]',
'\the [-h | --help]',
'\nExamples:\n',
'\the --escape \\<img\\ src\\=\\\'x\\\'\\ onerror\\=\\"prompt\\(1\\)\\"\\>',
'\techo \'&copy; &#x1D306;\' | he --decode'
].join('\n'));
return process.exit(option ? 0 : 1);
}
if (/^(?:-v|--version)$/.test(option)) {
log('v%s', he.version);
return process.exit(0);
}
strings.forEach(function(string) {
// Process options
if (string == '--escape') {
action = 'escape';
return;
}
if (string == '--encode') {
action = 'encode';
return;
}
if (string == '--use-named-refs') {
action = 'encode';
options.useNamedReferences = true;
return;
}
if (string == '--everything') {
action = 'encode';
options.encodeEverything = true;
return;
}
if (string == '--allow-unsafe') {
action = 'encode';
options.allowUnsafeSymbols = true;
return;
}
if (string == '--decimal') {
action = 'encode';
options.decimal = true;
return;
}
if (string == '--decode') {
action = 'decode';
return;
}
if (string == '--attribute') {
action = 'decode';
options.isAttributeValue = true;
return;
}
if (string == '--strict') {
action = 'decode';
options.strict = true;
return;
}
// Process string(s)
var result;
if (!action) {
log('Error: he requires at least one option and a string argument.');
log('Try `he --help` for more information.');
return process.exit(1);
}
try {
result = he[action](string, options);
log(result);
count++;
} catch(error) {
log(error.message + '\n');
log('Error: failed to %s.', action);
log('If you think this is a bug in he, please report it:');
log('https://github.com/mathiasbynens/he/issues/new');
log(
'\nStack trace using he@%s:\n',
he.version
);
log(error.stack);
return process.exit(1);
}
});
if (!count) {
log('Error: he requires a string argument.');
log('Try `he --help` for more information.');
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) {
// The script was called from a non-TTY context. This is a rather uncommon
// use case we dont actively support. However, we dont want the script
// to wait forever in such cases, so…
timeout = setTimeout(function() {
// …if no piped data arrived after a whole minute, handle shell
// arguments instead.
main();
}, 60000);
}
data = '';
stdin.on('data', function(chunk) {
clearTimeout(timeout);
data += chunk;
});
stdin.on('end', function() {
strings.push(data.trim());
main();
});
stdin.resume();
}
}());