RosettaCodeData/Task/I-before-E-except-after-C/BCPL/i-before-e-except-after-c.bcpl
2023-07-01 13:44:08 -04:00

54 lines
1.4 KiB
Text

get "libhdr"
// Read word from selected input
let readword(v) = valof
$( let ch = ?
v%0 := 0
$( ch := rdch()
if ch = endstreamch then resultis false
if ch = '*N' then resultis true
v%0 := v%0 + 1
v%(v%0) := ch
$) repeat
$)
// Does s1 contain s2?
let contains(s1, s2) = valof
$( for i = 1 to s1%0 - s2%0 + 1
if valof
$( for j = 1 to s2%0
unless s1%(i+j-1) = s2%j resultis false
resultis true
$) resultis true
resultis false
$)
// Test unixdict.txt
let start() be
$( let word = vec 2+64/BYTESPERWORD
let file = findinput("unixdict.txt")
let ncie, ncei, nxie, nxei = 0, 0, 0, 0
selectinput(file)
while readword(word)
test contains(word, "ie")
test contains(word, "cie")
do ncie := ncie + 1
or nxie := nxie + 1
or if contains(word, "ei")
test contains(word, "cei")
do ncei := ncei + 1
or nxei := nxei + 1
endread()
// Show results
writef("CIE: %N*N", ncie)
writef("xIE: %N*N", nxie)
writef("CEI: %N*N", ncei)
writef("xEI: %N*N", nxei)
writef("I before E when not preceded by C: %Splausible.*N",
2*nxie > ncie -> "", "not ")
writef("E before I when preceded by C: %Splausible.*N",
2*ncei > nxei -> "", "not ")
$)