Hi Hugh
Usual technique to seek extra time from a client is to ask more
questions. :-)
I assume the string has to match on the start of a word boundary.
e.g.
put "This is a test." into sourceText (note the punctuation)
whole("is is a test",sourceText) => FALSE
Case-sensitivity?
Dave
On 13 Jun 2007, at 20:35, [EMAIL PROTECTED] wrote:
The Challenge:
"Write a function that returns TRUE or FALSE for the existence of
any valid
text string existing within any longer text string. (To make
things easier we
limit this to ASCII text; right-to-left double-bite Unicode
character reco
gnition can come later :-)"
e.g.
put "This is a test-piece." into sourceText (note the punctuation)
whole("This is a test",sourceText) => FALSE
whole("This is a test-piece",sourceText) => TRUE
1. Philip's "creative thinking" entry (that unfortunately only
handles
tail-end period punctuation):
put "This is a test." into myLine
replace " " with "*" in myLine
put fld 1 into myField
replace ". " with ".#" in myField (note : period + space. use
two spaces
if needed)
replace space with "*" in myField
replace "#" with space in myField
if myLine is among the words of myField then return true
2. Dave's "almost there" entry....
This doesn't check that the matched target starts on a word
boundary,
But a simple check on char (tOff -1) or whether tOff is at the
beginning of the target shoud do it.
function whole s,t
put length(s) into tNumChars
put ",.;:?!" & space & tab & cr & numToChar(13) into tWB
put offset(s,t) into tOff
if tOff = 0 then return false
return length(t) = (tOff + tNumChars - 1) OR char (tOff +
tNumChars) of
t is in tWB
end whole
3. Ken's "sneaky" entry that relies on a field as the source
(probably
because I did not spec out the problem properly, meant
stringSource rather than
field, and he's too damn good at reading things carefully):
put wholeWordMatch("This is a test",long id of fld 1)
function wholeWordMatch pFindText,pFldRef
find whole pFindText in pFldRef
put the result into tResult
find empty
return (tResult <> "not found")
end wholeWordMatch
Anyone care to top these? The winner will be placed in the stdLib
assuming
common consent!
/H
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