Difference between revisions of "$len"
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$len(length) returns 6. | $len(length) returns 6. | ||
| − | $len() is simple, but powerful tool processing strings. | + | $len() is simple, but powerful tool for processing strings. |
== Examples == | == Examples == | ||
| − | This example | + | This example turns uppercase letters to lowercase and vice-versa. |
| − | <br/>$len is used to get | + | <br/>$len is used to get the length of the string (the value given to the alias) and loop through its every character. |
[[Aliases|alias]] changecase { | [[Aliases|alias]] changecase { | ||
| Line 17: | Line 17: | ||
%c = [[$mid]]($1-, %i, 1) | %c = [[$mid]]($1-, %i, 1) | ||
[[If-Then-Else|if]] ([[$isupper]](%c)) { | [[If-Then-Else|if]] ([[$isupper]](%c)) { | ||
| − | %str = %str [[$+]] [[$lower]](%c) | + | %str = %str [[DollarPlus|$+]] [[$lower]](%c) |
} | } | ||
[[If-Then-Else|else]] { | [[If-Then-Else|else]] { | ||
Revision as of 14:38, 10 November 2005
Returns the length of text.
$len(text)
$len(length) returns 6.
$len() is simple, but powerful tool for processing strings.
Examples
This example turns uppercase letters to lowercase and vice-versa.
$len is used to get the length of the string (the value given to the alias) and loop through its every character.
alias changecase { var %i = 1, %str, %c while (%i <= $len($$1-)) { %c = $mid($1-, %i, 1) if ($isupper(%c)) { %str = %str $+ $lower(%c) } else { %str = %str $+ $upper(%c) } inc %i } return %str } echo -a $changecase(Hello) ; returns hELLO
