SnapKit/_sass/bourbon/helpers/_str-to-num.scss

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2015-04-15 18:52:48 +08:00
//************************************************************************//
// Helper function for linear/radial-gradient-parsers.
// Source: http://sassmeister.com/gist/9647408
//************************************************************************//
@function _str-to-num($string) {
// Matrices
$strings: "0" "1" "2" "3" "4" "5" "6" "7" "8" "9";
$numbers: 0 1 2 3 4 5 6 7 8 9;
// Result
$result: 0;
$divider: 0;
$minus: false;
// Looping through all characters
@for $i from 1 through str-length($string) {
$character: str-slice($string, $i, $i);
$index: index($strings, $character);
@if $character == "-" {
$minus: true;
}
@else if $character == "." {
$divider: 1;
}
@else {
@if not $index {
$result: if($minus, $result * -1, $result);
@return _convert-units($result, str-slice($string, $i));
}
$number: nth($numbers, $index);
@if $divider == 0 {
$result: $result * 10;
}
@else {
// Move the decimal dot to the left
$divider: $divider * 10;
$number: $number / $divider;
}
$result: $result + $number;
}
}
@return if($minus, $result * -1, $result);
}