+
−/**
+
− * This file contains extensions for standard javascript types
+
− *
+
− */
+
−
+
−ONE_DAY = 86400000; // (in milliseconds)
+
−// ========== DATE EXTENSIONS ========== ///
+
−Date.prototype.equals = function(other) {
+
−    /* compare with other date ignoring time differences */
+
−    if (this.getYear() == other.getYear() && this.getMonth() == other.getMonth() && this.getDate() == other.getDate()) {
+
−        return true;
+
−    }
+
−    return false;
+
−};
+
−
+
−Date.prototype.add = function(days) {
+
−    var res = new Date();
+
−    res.setTime(this.getTime() + (days * ONE_DAY));
+
−    return res;
+
−};
+
−
+
−Date.prototype.sub = function(days) {
+
−    return this.add( - days);
+
−};
+
−
+
−Date.prototype.iadd = function(days) {
+
−    // in-place add
+
−    this.setTime(this.getTime() + (days * ONE_DAY));
+
−    // avoid strange rounding problems !!
+
−    this.setHours(12);
+
−};
+
−
+
−Date.prototype.isub = function(days) {
+
−    // in-place sub
+
−    this.setTime(this.getTime() - (days * ONE_DAY));
+
−};
+
−
+
−/**
+
− * .. function:: Date.prototype.nextMonth()
+
− *
+
− * returns the first day of the next month
+
− */
+
−Date.prototype.nextMonth = function() {
+
−    if (this.getMonth() == 11) {
+
−        var d = new Date(this.getFullYear() + 1, 0, 1);
+
−        return d;
+
−    } else {
+
−        var d2 = new Date(this.getFullYear(), this.getMonth() + 1, 1);
+
−        return d2;
+
−    }
+
−};
+
−
+
−/**
+
− * .. function:: Date.prototype.getRealDay()
+
− *
+
− * returns the day of week, 0 being monday, 6 being sunday
+
− */
+
−Date.prototype.getRealDay = function() {
+
−    // getDay() returns 0 for Sunday ==> 6 for Saturday
+
−    return (this.getDay() + 6) % 7;
+
−};
+
−
+
−Date.prototype.strftime = function(fmt) {
+
−    if (this.toLocaleFormat !== undefined) { // browser dependent
+
−        return this.toLocaleFormat(fmt);
+
−    }
+
−    // XXX implement at least a decent fallback implementation
+
−    return this.getFullYear() + '/' + (this.getMonth() + 1) + '/' + this.getDate();
+
−};
+
−
+
−var _DATE_FORMAT_REGXES = {
+
−    'Y': new RegExp('^-?[0-9]+'),
+
−    'd': new RegExp('^[0-9]{1,2}'),
+
−    'm': new RegExp('^[0-9]{1,2}'),
+
−    'H': new RegExp('^[0-9]{1,2}'),
+
−    'M': new RegExp('^[0-9]{1,2}')
+
−};
+
−
+
−/**
+
− * .. function:: _parseDate(datestring, format)
+
− *
+
− * _parseData does the actual parsing job needed by `strptime`
+
− */
+
−function _parseDate(datestring, format) {
+
−    var skip0 = new RegExp('^0*[0-9]+');
+
−    var parsed = {};
+
−    for (var i1 = 0, i2 = 0; i1 < format.length; i1++, i2++) {
+
−        var c1 = format.charAt(i1);
+
−        var c2 = datestring.charAt(i2);
+
−        if (c1 == '%') {
+
−            c1 = format.charAt(++i1);
+
−            var data = _DATE_FORMAT_REGXES[c1].exec(datestring.substring(i2));
+
−            if (!data.length) {
+
−                return null;
+
−            }
+
−            data = data[0];
+
−            i2 += data.length - 1;
+
−            var value = parseInt(data, 10);
+
−            if (isNaN(value)) {
+
−                return null;
+
−            }
+
−            parsed[c1] = value;
+
−            continue;
+
−        }
+
−        if (c1 != c2) {
+
−            return null;
+
−        }
+
−    }
+
−    return parsed;
+
−}
+
−
+
−/**
+
− * .. function:: strptime(datestring, format)
+
− *
+
− * basic implementation of strptime. The only recognized formats
+
− * defined in _DATE_FORMAT_REGEXES (i.e. %Y, %d, %m, %H, %M)
+
− */
+
−function strptime(datestring, format) {
+
−    var parsed = _parseDate(datestring, format);
+
−    if (!parsed) {
+
−        return null;
+
−    }
+
−    // create initial date (!!! year=0 means 1900 !!!)
+
−    var date = new Date(0, 0, 1, 0, 0);
+
−    date.setFullYear(0); // reset to year 0
+
−    if (parsed.Y) {
+
−        date.setFullYear(parsed.Y);
+
−    }
+
−    if (parsed.m) {
+
−        if (parsed.m < 1 || parsed.m > 12) {
+
−            return null;
+
−        }
+
−        // !!! month indexes start at 0 in javascript !!!
+
−        date.setMonth(parsed.m - 1);
+
−    }
+
−    if (parsed.d) {
+
−        if (parsed.m < 1 || parsed.m > 31) {
+
−            return null;
+
−        }
+
−        date.setDate(parsed.d);
+
−    }
+
−    if (parsed.H) {
+
−        if (parsed.H < 0 || parsed.H > 23) {
+
−            return null;
+
−        }
+
−        date.setHours(parsed.H);
+
−    }
+
−    if (parsed.M) {
+
−        if (parsed.M < 0 || parsed.M > 59) {
+
−            return null;
+
−        }
+
−        date.setMinutes(parsed.M);
+
−    }
+
−    return date;
+
−}
+
−
+
−// ========== END OF DATE EXTENSIONS ========== ///
+
−// ========== STRING EXTENSIONS ========== //
+
−/**
+
− * .. function:: String.prototype.startswith(prefix)
+
− *
+
− * python-like startsWith method for js strings
+
− * >>>
+
− */
+
−String.prototype.startswith = function(prefix) {
+
−    return this.indexOf(prefix) == 0;
+
−};
+
−
+
−/**
+
− * .. function:: String.prototype.endswith(suffix)
+
− *
+
− * python-like endsWith method for js strings
+
− */
+
−String.prototype.endswith = function(suffix) {
+
−    var startPos = this.length - suffix.length;
+
−    if (startPos < 0) {
+
−        return false;
+
−    }
+
−    return this.lastIndexOf(suffix, startPos) == startPos;
+
−};
+
−
+
−/**
+
− * .. function:: String.prototype.strip()
+
− *
+
− * python-like strip method for js strings
+
− */
+
−String.prototype.strip = function() {
+
−    return this.replace(/^\s*(.*?)\s*$/, "$1");
+
−};
+
−
+
−/**
+
− * .. function:: String.prototype.rstrip()
+
− *
+
− * python-like rstrip method for js strings
+
− */
+
−String.prototype.rstrip = function(str) {
+
−    if (!str) { str = '\s' ; }
+
−    return this.replace(new RegExp('^(.*?)' + str + '*$'), "$1");
+
−};
+
−
+
−// ========= class factories ========= //
+
−
+
−/**
+
− * .. function:: makeUnboundMethod(meth)
+
− *
+
− * transforms a function into an unbound method
+
− */
+
−function makeUnboundMethod(meth) {
+
−    function unboundMeth(self) {
+
−        var newargs = cw.utils.sliceList(arguments, 1);
+
−        return meth.apply(self, newargs);
+
−    }
+
−    unboundMeth.__name__ = meth.__name__;
+
−    return unboundMeth;
+
−}
+
−
+
−function attachMethodToClass(cls, methname, meth) {
+
−    meth.__name__ = methname;
+
−    // XXX : this is probably bad for memory usage
+
−    cls.__dict__[methname] = meth;
+
−    cls[methname] = makeUnboundMethod(meth); // for the class itself
+
−    cls.prototype[methname] = meth; // for the instance
+
−}
+
−
+
−/**
+
− * .. function:: _isAttrSkipped(attrname)
+
− *
+
− * simple internal function that tells if the attribute should
+
− * be copied from baseclasses or not
+
− */
+
−function _isAttrSkipped(attrname) {
+
−    var skipped = ['__class__', '__dict__', '__bases__', 'prototype'];
+
−    for (var i = 0; i < skipped.length; i++) {
+
−        if (skipped[i] == attrname) {
+
−            return true;
+
−        }
+
−    }
+
−    return false;
+
−}
+
−
+
−/**
+
− * .. function:: makeConstructor(userctor)
+
− *
+
− * internal function used to build the class constructor
+
− */
+
−function makeConstructor(userctor) {
+
−    return function() {
+
−        // this is a proxy to user's __init__
+
−        if (userctor) {
+
−            userctor.apply(this, arguments);
+
−        }
+
−    };
+
−}
+
−
+
−/**
+
− * .. function:: defclass(name, bases, classdict)
+
− *
+
− * this is a js class factory. objects returned by this function behave
+
− * more or less like a python class. The `class` function prototype is
+
− * inspired by the python `type` builtin
+
− *
+
− * .. Note::
+
− *
+
− *    * methods are _STATICALLY_ attached when the class it created
+
− *    * multiple inheritance was never tested, which means it doesn't work ;-)
+
− */
+
−function defclass(name, bases, classdict) {
+
−    var baseclasses = bases || [];
+
−
+
−    // this is the static inheritance approach (<=> differs from python)
+
−    var basemeths = {};
+
−    var reverseLookup = [];
+
−    for (var i = baseclasses.length - 1; i >= 0; i--) {
+
−        reverseLookup.push(baseclasses[i]);
+
−    }
+
−    reverseLookup.push({
+
−        '__dict__': classdict
+
−    });
+
−
+
−    for (var i = 0; i < reverseLookup.length; i++) {
+
−        var cls = reverseLookup[i];
+
−        for (prop in cls.__dict__) {
+
−            // XXX hack to avoid __init__, __bases__...
+
−            if (!_isAttrSkipped(prop)) {
+
−                basemeths[prop] = cls.__dict__[prop];
+
−            }
+
−        }
+
−    }
+
−    var userctor = basemeths['__init__'];
+
−    var constructor = makeConstructor(userctor);
+
−
+
−    // python-like interface
+
−    constructor.__name__ = name;
+
−    constructor.__bases__ = baseclasses;
+
−    constructor.__dict__ = {};
+
−    constructor.prototype.__class__ = constructor;
+
−    // make bound / unbound methods
+
−    for (methname in basemeths) {
+
−        attachMethodToClass(constructor, methname, basemeths[methname]);
+
−    }
+
−
+
−    return constructor;
+
−}