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Computer Science Canada

Need help with string manipulation

Author:	yingmu [ Sun Apr 10, 2005 7:59 pm ]
Post subject:	Need help with string manipulation
ok u have a string, and the beginning part was a number followed by words with no space in between, how do u get the number into interger, ex. if the string was "123abc" how do u get the number 123? plz help, thx [/b]

Author:

jamonathin [ Sun Apr 10, 2005 8:08 pm ]

Post subject:

This is what I got, but there's some errors, or attributes, depends on how you see it. It'll take the number out, but it will put the number in order.

code:

var number : int := 0
var hold : string := ""
var chars : string := "123abc"
for i : 0 .. 9
for q : 1 .. length (chars)
if chars (q) = intstr (i) then
hold += chars (q)
end if
end for
end for
number := strint (hold)
put number

use "1231abc" and see for yourself. I can't think of anything else right now, but i figured this was better than nothing. Confused

Author:

jamonathin [ Sun Apr 10, 2005 8:21 pm ]

Post subject:

Here yas go. I did it backwards, here's the final good copy.

code:

var number : int := 0
var hold : string := ""
var chars : string := "423ab1c"
for i : 1 .. length (chars) %Checking Every Character
for q : 0 .. 9 %Checking If There's a Number There
if chars (i) = intstr (q) then
hold += chars (i) %Adding the Number to a String
end if
end for
end for
number := strint (hold) %Converting the String to an Int
put number

What you do is check every character in the string to see if there's a number, if there is, add it to a variable that can hold the information, then transfer the information to an integer variable.

Author:	McKenzie [ Sun Apr 10, 2005 8:30 pm ]
Post subject:
yingmu, Unless you are trying to go above and beyond I've said that you only need to worry about one digit numbers.

Author:	jamonathin [ Sun Apr 10, 2005 8:34 pm ]
Post subject:
McKenzie wrote: yingmu, Unless you are trying to go above and beyond I've said that you only need to worry about one digit numbers. why should he only stick to 1-digit?

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