cli.js
4.76 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
/*!
* Casper is a navigation utility for PhantomJS.
*
* Documentation: http://casperjs.org/
* Repository: http://github.com/n1k0/casperjs
*
* Copyright (c) 2011-2012 Nicolas Perriault
*
* Part of source code is Copyright Joyent, Inc. and other Node contributors.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*/
/*global CasperError, console, exports, phantom, patchRequire, require:true*/
var require = patchRequire(require);
var utils = require('utils');
var system = require('system');
/**
* Extracts, normalize ad organize PhantomJS CLI arguments in a dedicated
* Object.
*
* @param array phantomArgs system.args value
* @return Object
*/
exports.parse = function parse(phantomArgs) {
"use strict";
var extract = {
args: [],
options: {},
raw: {
args: [],
options: {}
},
drop: function drop(what) {
if (utils.isNumber(what)) {
// deleting an arg by its position
this.args = this.args.filter(function _filter(arg, index) {
return index !== what;
});
} else if (utils.isString(what)) {
// deleting an arg by its value
this.args = this.args.filter(function _filter(arg) {
return arg !== what;
});
// deleting an option by its name (key)
var self = this;
Object.keys(this.options).forEach(function _forEach(option) {
if (option === what) {
delete self.options[what];
}
});
} else {
throw new CasperError("cannot drop argument of type " + typeof what);
}
},
has: function has(what) {
if (utils.isNumber(what)) {
return what in this.args;
} else if (utils.isString(what)) {
return what in this.options;
} else {
throw new CasperError("Unsupported cli arg tester " + typeof what);
}
},
get: function get(what) {
if (utils.isNumber(what)) {
return this.args[what];
} else if (utils.isString(what)) {
return this.options[what];
} else {
throw new CasperError("Unsupported cli arg getter " + typeof what);
}
}
};
phantomArgs.forEach(function _forEach(arg) {
if (arg.indexOf('--') === 0) {
// named option
var optionMatch = arg.match(/^--(.*?)=(.*)/i);
if (optionMatch) {
extract.options[optionMatch[1]] = castArgument(optionMatch[2]);
extract.raw.options[optionMatch[1]] = optionMatch[2];
} else {
// flag
var flagMatch = arg.match(/^--(.*)/);
if (flagMatch) {
extract.options[flagMatch[1]] = extract.raw.options[flagMatch[1]] = true;
}
}
} else {
// positional arg
extract.args.push(castArgument(arg));
extract.raw.args.push(arg);
}
});
extract.raw = utils.mergeObjects(extract.raw, {
drop: extract.drop,
has: extract.has,
get: extract.get
});
return extract;
};
/**
* Cast a string argument to its typed equivalent.
*
* @param String arg
* @return Mixed
*/
function castArgument(arg) {
"use strict";
if (arg.match(/^-?\d+$/)) {
return parseInt(arg, 10);
} else if (arg.match(/^-?\d+\.\d+$/)) {
return parseFloat(arg);
} else if (arg.match(/^(true|false)$/i)) {
return arg.trim().toLowerCase() === "true" ? true : false;
} else {
return arg;
}
}