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[fsharp/en] Use "elif" (#2566)

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Jürgen Hötzel 2016-11-12 18:29:18 +01:00 committed by ven
parent d70ad72219
commit dcfbeeb614
1 changed files with 5 additions and 2 deletions
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fsharp.html.markdown
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@ -408,11 +408,14 @@ module ActivePatternExamples =
// "banana clips" are the syntax for active patterns
// You can use "elif" instead of "else if" in conditional expressions.
// They are equivalent in F#
// for example, define an "active" pattern to match character types...
let (|Digit|Letter|Whitespace|Other|) ch =
if System.Char.IsDigit(ch) then Digit
else if System.Char.IsLetter(ch) then Letter
else if System.Char.IsWhiteSpace(ch) then Whitespace
elif System.Char.IsLetter(ch) then Letter
elif System.Char.IsWhiteSpace(ch) then Whitespace
else Other
// ... and then use it to make parsing logic much clearer