Hi devs,
here are the functions,
/**
* Converts a given string to a boolean and returns it (small helper as
elementVars are always strings).
* Handles this rather strict:
* '1' => true
* 'true' => true
* '0' => false
* 'false' => false
* Nearly all other cases evaluate to 'undefined', this behaviour can be
changed if the first line is altered and the variabnle bool is
* initialized with a value (e.g. var bool = false).
*
* @param {string} the var to convert
* @return {boolean} a boolean version of the passed var according to
the above described rules or 'undefined'
* @author Marc Jansen <[EMAIL PROTECTED]>
*/
function elementvar_2_boolean(theVar) {
var bool;
if ( theVar.toLowerCase() === 'true'
|| parseInt(theVar, 10) === 1 ) {
bool = true;
} else {
if ( theVar.toLowerCase() === 'false'
|| parseInt(theVar, 10) === 0 ) {
bool = false;
}
}
return bool;
}
/**
* Converts a given string to a integer and returns it (small helper as
elementVars are always strings).
*
* @param {string} the var to convert
* @return {integer} a integer version of the passed var or 'NaN'
* @author Marc Jansen <[EMAIL PROTECTED]>
*/
function elementvar_2_integer(theVar) {
return parseInt(theVar, 10);
}
/**
* Converts a given string to a float and returns it, german decimal
divider ',' is recognized (small helper as elementVars are always strings).
*
* @param {string} the var to convert
* @return {integer} a float version of the passed var or 'NaN'
* @author Marc Jansen <[EMAIL PROTECTED]>
*/
function elementvar_2_float(theVar) {
return parseFloat( theVar.replace(/,/g, '.') );
}
Shall I commit these?... would be good for my stats atr ohloh ;-)
-- Marc
Christoph Baudson (WhereGroup) schrieb:
[snip]
-----------------------
Element vars
-----------------------
We were discussing the necessity of variable types for element vars
(if you don't know what element vars are, see
http://www.mapbender.org/index.php/Element_var). Now, there's only one
type (string), and the scripts parse it they way they want.
There were some pros and cons for the introduction of types:
- interface might become more complicated
+ type safety in scripts
+ arrays are hard to handle at the moment
Marc had written a small JS conversion function that he will send to
the dev-list.
[/snip]
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