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jbsouvestre/re.js

Last active August 29, 2015 14:22
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Args parser
Raw
re.js
// the magic
var re = new RegExp(/([^\s"']+)|"([^"]*)"|'([^']*)'/);
/**
* parse a command line argument and returns sit as a splitted array
* @param {String} input
**/
function parseArgs(input){
var args = input.split(re);
var parsed = [];
for(let i = 0; i < args.length; i++){
if(args[i] != null && args[i].trim('')){
parsed.push(args[i]);
}
}
return parsed;
}
// example
var str = 'test --a "test a" -a -v key1=value1 key2="value with spaces" key3=\'with single quotes\'';
console.log(parseArgs(str));
// ["test", "--a", "test a", "-a", "-v", "key1=value1", "key2=", "value with spaces", "key3=", "with single quotes"]
@oNaiPs
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oNaiPs commented Jun 3, 2015

Thanks for that. I'm trying to get the same behavior as node.js argument parser for process.argv, and it seems to print

node a.js test --a "test a" -a -v key1=value1 key2="value with spaces" key3='with single quotes'
[ 'node',
  '/Users/onaips/a.js',
  'test',
  '--a',
  'test a',
  '-a',
  '-v',
  'key1=value1',
  'key2=value with spaces',
  'key3=with single quotes' ]

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