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MDL-9643 some more polishing

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skodak 2007-05-26 13:11:54 +00:00
parent 7458bee224
commit 19e7f33384
1 changed files with 6 additions and 7 deletions
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13
lib/mathslib.php
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@ -13,7 +13,7 @@ class calc_formula {
// private properties
var $_em;
var $_nfx = false; // postfix expression
var $_nfx = false; // postfix notation
var $_error = false; // last error
/**
@ -26,7 +26,7 @@ class calc_formula {
$this->_em = new EvalMath();
$this->_em->suppress_errors = true;
if (strpos($formula, '=') !== 0) {
$this->_error = "missing '='";
$this->_error = "missing leading '='";
return;
}
$formula = substr($formula, 1);
@ -45,9 +45,10 @@ class calc_formula {
}
/**
* Raplace parameters used in calculation
* Raplace parameters used in existing formula,
* parameter names must contain only lowercase [a-z] letters, no other characters are allowed!
*
* @param array $params associative array of parameters used in formula. All parameter names must be lowercase!
* @param array $params associative array of parameters used in formula
*/
function set_params($params) {
$this->_em->v = $params;
@ -70,13 +71,11 @@ class calc_formula {
$this->_error = false;
return $res;
}
}
/**
* Get last error.
*
* TODO: localize the strings
* TODO: localize the strings from contructor and EvalMath library
*
* @return mixed string with last error description or false if ok
*/