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// Generated by CoffeeScript 1.8.0
(function() {
var LONG_FLAG, MULTI_FLAG, OPTIONAL, OptionParser, SHORT_FLAG, buildRule, buildRules, normalizeArguments, repeat;
repeat = require('./helpers').repeat;
exports.OptionParser = OptionParser = (function() {
function OptionParser(rules, banner) {
this.banner = banner;
this.rules = buildRules(rules);
}
OptionParser.prototype.parse = function(args) {
var arg, i, isOption, matchedRule, options, originalArgs, pos, rule, seenNonOptionArg, skippingArgument, value, _i, _j, _len, _len1, _ref;
options = {
"arguments": []
};
skippingArgument = false;
originalArgs = args;
args = normalizeArguments(args);
for (i = _i = 0, _len = args.length; _i < _len; i = ++_i) {
arg = args[i];
if (skippingArgument) {
skippingArgument = false;
continue;
}
if (arg === '--') {
pos = originalArgs.indexOf('--');
options["arguments"] = options["arguments"].concat(originalArgs.slice(pos + 1));
break;
}
isOption = !!(arg.match(LONG_FLAG) || arg.match(SHORT_FLAG));
seenNonOptionArg = options["arguments"].length > 0;
if (!seenNonOptionArg) {
matchedRule = false;
_ref = this.rules;
for (_j = 0, _len1 = _ref.length; _j < _len1; _j++) {
rule = _ref[_j];
if (rule.shortFlag === arg || rule.longFlag === arg) {
value = true;
if (rule.hasArgument) {
skippingArgument = true;
value = args[i + 1];
}
options[rule.name] = rule.isList ? (options[rule.name] || []).concat(value) : value;
matchedRule = true;
break;
}
}
if (isOption && !matchedRule) {
throw new Error("unrecognized option: " + arg);
}
}
if (seenNonOptionArg || !isOption) {
options["arguments"].push(arg);
}
}
return options;
};
OptionParser.prototype.help = function() {
var letPart, lines, rule, spaces, _i, _len, _ref;
lines = [];
if (this.banner) {
lines.unshift("" + this.banner + "\n");
}
_ref = this.rules;
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
rule = _ref[_i];
spaces = 15 - rule.longFlag.length;
spaces = spaces > 0 ? repeat(' ', spaces) : '';
letPart = rule.shortFlag ? rule.shortFlag + ', ' : ' ';
lines.push(' ' + letPart + rule.longFlag + spaces + rule.description);
}
return "\n" + (lines.join('\n')) + "\n";
};
return OptionParser;
})();
LONG_FLAG = /^(--\w[\w\-]*)/;
SHORT_FLAG = /^(-\w)$/;
MULTI_FLAG = /^-(\w{2,})/;
OPTIONAL = /\[(\w+(\*?))\]/;
buildRules = function(rules) {
var tuple, _i, _len, _results;
_results = [];
for (_i = 0, _len = rules.length; _i < _len; _i++) {
tuple = rules[_i];
if (tuple.length < 3) {
tuple.unshift(null);
}
_results.push(buildRule.apply(null, tuple));
}
return _results;
};
buildRule = function(shortFlag, longFlag, description, options) {
var match;
if (options == null) {
options = {};
}
match = longFlag.match(OPTIONAL);
longFlag = longFlag.match(LONG_FLAG)[1];
return {
name: longFlag.substr(2),
shortFlag: shortFlag,
longFlag: longFlag,
description: description,
hasArgument: !!(match && match[1]),
isList: !!(match && match[2])
};
};
normalizeArguments = function(args) {
var arg, l, match, result, _i, _j, _len, _len1, _ref;
args = args.slice(0);
result = [];
for (_i = 0, _len = args.length; _i < _len; _i++) {
arg = args[_i];
if (match = arg.match(MULTI_FLAG)) {
_ref = match[1].split('');
for (_j = 0, _len1 = _ref.length; _j < _len1; _j++) {
l = _ref[_j];
result.push('-' + l);
}
} else {
result.push(arg);
}
}
return result;
};
}).call(this);
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