[pkg] bump the dependency on logilab.database
This will allow use of an extended API.
Related to #3526594.
/**
* 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;
}