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types.js
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types.js
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(function(global, _) {
/* @exports namespace */
var Miso = global.Miso = {};
Miso.typeOf = function(value, options) {
var types = _.keys(Miso.types),
chosenType;
//move string and mixed to the end
types.push(types.splice(_.indexOf(types, 'string'), 1)[0]);
types.push(types.splice(_.indexOf(types, 'mixed'), 1)[0]);
chosenType = _.find(types, function(type) {
return Miso.types[type].test(value, options);
});
chosenType = _.isUndefined(chosenType) ? 'string' : chosenType;
return chosenType;
};
Miso.types = {
mixed : {
name : 'mixed',
coerce : function(v) {
return v;
},
test : function(v) {
return true;
},
compare : function(s1, s2) {
if (s1 < s2) { return -1; }
if (s1 > s2) { return 1; }
return 0;
},
numeric : function(v) {
return _.isNaN( Number(v) ) ? null : Number(v);
}
},
string : {
name : "string",
coerce : function(v) {
return v == null ? null : v.toString();
},
test : function(v) {
return (v === null || typeof v === "undefined" || typeof v === 'string');
},
compare : function(s1, s2) {
if (s1 == null && s2 != null) { return -1; }
if (s1 != null && s2 == null) { return 1; }
if (s1 < s2) { return -1; }
if (s1 > s2) { return 1; }
return 0;
},
numeric : function(value) {
if (_.isNaN(+value) || value === null) {
return null;
} else if (_.isNumber(+value)) {
return +value;
} else {
return null;
}
}
},
boolean : {
name : "boolean",
regexp : /^(true|false)$/,
coerce : function(v) {
if (v === 'false') { return false; }
return Boolean(v);
},
test : function(v) {
if (v === null || typeof v === "undefined" || typeof v === 'boolean' || this.regexp.test( v ) ) {
return true;
} else {
return false;
}
},
compare : function(n1, n2) {
if (n1 == null && n2 != null) { return -1; }
if (n1 != null && n2 == null) { return 1; }
if (n1 == null && n2 == null) { return 0; }
if (n1 === n2) { return 0; }
return (n1 < n2 ? -1 : 1);
},
numeric : function(value) {
if (_.isNaN(value)) {
return null;
} else {
return (value) ? 1 : 0;
}
}
},
number : {
name : "number",
regexp : /^[\-\.]?[0-9]+([\.][0-9]+)?$/,
coerce : function(v) {
if (_.isNull(v)) {
return null;
}
return _.isNaN(v) ? null : +v;
},
test : function(v) {
if (v === null || typeof v === "undefined" || typeof v === 'number' || this.regexp.test( v ) ) {
return true;
} else {
return false;
}
},
compare : function(n1, n2) {
if (n1 == null && n2 != null) { return -1; }
if (n1 != null && n2 == null) { return 1; }
if (n1 == null && n2 == null) { return 0; }
if (n1 === n2) { return 0; }
return (n1 < n2 ? -1 : 1);
},
numeric : function(value) {
return value;
}
},
time : {
name : "time",
format : "DD/MM/YYYY",
_formatLookup : [
['DD', "\\d{2}"],
['D' , "\\d{1}|\\d{2}"],
['MM', "\\d{2}"],
['M' , "\\d{1}|\\d{2}"],
['YYYY', "\\d{4}"],
['YY', "\\d{2}"],
['A', "[AM|PM]"],
['hh', "\\d{2}"],
['h', "\\d{1}|\\d{2}"],
['mm', "\\d{2}"],
['m', "\\d{1}|\\d{2}"],
['ss', "\\d{2}"],
['s', "\\d{1}|\\d{2}"],
['ZZ',"[-|+]\\d{4}"],
['Z', "[-|+]\\d{2}:\\d{2}"]
],
_regexpTable : {},
_regexp: function(format) {
//memoise
if (this._regexpTable[format]) {
return new RegExp(this._regexpTable[format], 'g');
}
//build the regexp for substitutions
var regexp = format;
_.each(this._formatLookup, function(pair) {
regexp = regexp.replace(pair[0], pair[1]);
}, this);
// escape all forward slashes
regexp = regexp.split("/").join("\\/");
// save the string of the regexp, NOT the regexp itself.
// For some reason, this resulted in inconsistant behavior
this._regexpTable[format] = regexp;
return new RegExp(this._regexpTable[format], 'g');
},
coerce : function(v, options) {
options = options || {};
// if string, then parse as a time
if (_.isString(v)) {
var format = options.format || this.format;
return moment(v, options.format);
} else if (_.isNumber(v)) {
return moment(v);
} else {
return v;
}
},
test : function(v, options) {
options = options || {};
if (v === null || typeof v === "undefined") {
return true;
}
if (_.isString(v) ) {
var format = options.format || this.format,
regex = this._regexp(format);
return regex.test(v);
} else {
//any number or moment obj basically
return true;
}
},
compare : function(d1, d2) {
if (d1 < d2) {return -1;}
if (d1 > d2) {return 1;}
return 0;
},
numeric : function( value ) {
return value.valueOf();
}
}
};
}(this, _));