Kernighans large earthquake problem: Difference between revisions
m
→{{header|AppleScript}}: Quick refactor to handle a missing file and any blank lines.
m (→{{header|AppleScript}}: Quick refactor to handle a missing file and any blank lines.) |
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kernighansEarthquakes(6)</lang>
===Functional===
Checking that the file exists, and discarding any blank lines,
<lang applescript>use AppleScript version "2.4"
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property magnitude : 6.0
property
-------------------------- TEST ---------------------------
on run
unlines({("Magnitudes above " & magnitude as string) & ¬▼
bindLR(readFileLR(fp), ¬
" in " & filePath & ":", ""} & ¬▼
report(fp, magnitude))
filter(aboveThreshold(magnitude), paragraphs of readFile(filePath)))▼
end run
-------------------- EARTHQUAKE REPORT --------------------
on report(fp, threshold)
script
▲ unlines({("Magnitudes above " & magnitude as string) & ¬
end script
end report
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script
on |λ|(s)
if "" ≠ s and threshold < (item -1 of words of s) as number then
{s}
else
{}
end |λ|
end script
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-------------------- REUSABLE GENERICS --------------------
--
on
{type:"Either", |Left|:x, |Right|:missing value}
tell mReturn(p)▼
end |Left|
▲ set lst to {}
▲ set lng to length of xs
-- Right :: b -> Either a b
on |Right|(x)
{type:"Either", |Left|:missing value, |Right|:x}
end |Right|
-- bindLR (>>=) :: Either a -> (a -> Either b) -> Either b
on bindLR(m, mf)
if missing value is not |Left| of m then
m
else
mReturn(mf)'s |λ|(|Right| of m)
end if
end bindLR
-- concatMap :: (a -> [b]) -> [a] -> [b]
on concatMap(f, xs)
set lng to length of xs
set acc to {}
repeat with i from 1 to lng
set
end repeat
▲ return lst
end tell
return acc
end concatMap
-- mReturn :: First-class m => (a -> b) -> m (a -> b)
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end mReturn
▲-- readFile :: FilePath -> IO String
-- readFileLR :: FilePath -> Either String IO String
on
set ca to current application
set e to reference
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stringByStandardizingPath) ¬
encoding:(ca's NSUTF8StringEncoding) |error|:(e))
if
else
|Right|(
end if
end
-- unlines :: [String] -> String
| |||