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