My apologies Hermann. I had not been following the original thread
closely, and got confused by the embedded quoting in the later messages.
I was looking at Geoff's code - not yours - and he explicitly said "
And of course if retaining the order isn't critical "
So I agree your array method does indeed work properly. However, it is
rather 'splendidly' slow compared to the simpler method as recommended
by Mark H and myself :-); it takes almost twice as long on my test cases
(between 30,000 and 300,000 lines of moderate length, highly repetitive,
9.0.0, Mac Book Pro circa 2011).
Full code below ....
-- Alex
on mouseUp
local tData1, tData2, time1, temp, tText
repeat 30000 times
put "this is a medium length line that can be updated" &CR after
tText
end repeat
local tWith
put prependLineNumbers(tText) into tWith
put prependLineNumbers2(tText) into tWith
-- put prependLineNumbersProgress(tText) into tWith
end mouseup
function prependLineNumbers pText
local timeLastUpdated, time1, time2, temp
local tCount
put the number of lines in pText into tCount
put the millisecs into time1
local I
repeat for each line L in pText
add 1 to I
put I && L &CR after temp
end repeat
put tCount && the millisecs - time1 &CR after msg
return temp
end prependLineNumbers
function prependLineNumbers2 pText
local timeLastUpdated, time1, time2, temp
local tCount, S, K
put the number of lines in pText into tCount
put the millisecs into time1
split pText by return
put the keys of pText into K
sort K numeric
repeat for each line L in K
put cr & L && pText[L] after S --> change separator here
end repeat
put tCount && the millisecs - time1 &CR after msg
return char 2 to -1 of S
end prependLineNumbers2
On 28/10/2018 20:06, hh via use-livecode wrote:
Alex T. wrote:
You require to keep the line ordering completely unchanged -
and Hermann's superfast method can't meet that need.
JLG wrote:
You're right, split deletes duplicates. In fact, I use it as a quick way
to do just that.
You are both spendidly wrong:
Could you please simply try my functions and read the dictionary in order
to understand why you are wrong? Please!
Is it not yet Halloween ...
-- D is the separator for numbers and text lines, usually space or ": "
-- T is the input text, delimited with return
-- prepends the number and separator to each line:
function addLineNumbers D,T
split T by return
put the keys of T into K
sort K numeric
repeat for each line L in K
put cr & L & D & T[L] after S
end repeat
return char 2 to -1 of S
end addLineNumbers
-- D is the separator for numbers and text lines, usually space or ": "
-- T is the input text, delimited with return
-- removes the number and separator from each line:
function removeLineNumbers D,T
split T by return and D
put the keys of T into K
sort K numeric
repeat for each line L in K
put cr & T[L] after S
end repeat
return char 2 to -1 of S
end removeLineNumbers
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