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51 lines
1.3 KiB
JavaScript

#!/usr/bin/env node
(function() {
var fs = require('fs');
var parse = require('../parser').parse;
var jsesc = require('jsesc');
var regexes = process.argv.splice(2);
var first = regexes[0];
var data;
var log = console.log;
var main = function() {
if (/^(?:-h|--help|undefined)$/.test(first)) {
log([
'\nUsage:\n',
'\tregjsparser [regex ...]',
'\tregjsparser [-h | --help]',
'\nExamples:\n',
'\tregjsparser \'^foo.bar$\'',
'\tregjsparser \'[a-zA-Z0-9]\''
].join('\n'));
return process.exit(1);
}
regexes.forEach(function(snippet) {
var result;
try {
result = parse(snippet);
log(jsesc(result, {
'json': true,
'compact': false,
'indent': '\t'
}));
} catch(error) {
log(error.message + '\n');
log('Error: failed to parse. Make sure the regular expression is valid.');
log('If you think this is a bug in regjsparser, please report it:');
log('\thttps://github.com/jviereck/regjsparser/issues/new');
log('\nStack trace:\n');
log(error.stack);
return process.exit(1);
}
});
// Return with exit status 0 outside of the `forEach` loop, in case
// multiple regular expressions were passed in.
return process.exit(0);
};
main();
}());