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ac1fa28890
Apparently the concrete syntax is controversial ("{apples}"
vs. "$oranges"), so I'm just adding a simple DYI version until we
agree on a concrete syntax
34 lines
1.1 KiB
Idris
34 lines
1.1 KiB
Idris
||| A DYI version of 'string interpolation', mimicking Python 3's 'f-string' syntax
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||| Not as fancy
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module Data.String.Interpolation
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import Data.Strings
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namespace Data.String.Interpolation.Basic
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%inline
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public export
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F : List String -> String
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F strs = concat (strs)
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namespace Data.String.Interpolation.Nested
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%inline
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public export
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F : List (List String) -> String
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F strss = F (concat strss)
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{- Examples:
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fstring : String
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fstring = let apples = "apples" in
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F["I have some ", apples," here."] --- cf. f"I have some {apples} here."
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multiline : String
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multiline = let name = "Edwin"
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profession = "Hacker"
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affiliation = "the University of St. Andrews" in --- cf.
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F [["Hi ",name,". " ] --- f"Hi {name}. " \
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,["You are a ",profession,". "] --- f"You are a {profession}. " \
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,["You were in ",affiliation,"."] --- f"You were in {affiliation}."
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]
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-}
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