Difference between revisions of "George Functions : Find"
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| Line 1: | Line 1: | ||
FUNCTION Find(string,car,start) | FUNCTION Find(string,car,start) | ||
| − | + | LOCAL i size | |
| − | + | i = start | |
| − | + | size = LEN(string) | |
| − | + | IF ((start <= 0) || (start > size) || (CMP(car,"") == 1)) | |
| − | + | RETURN -1 | |
| − | + | END | |
| − | + | DO | |
| − | + | IF (CMP(CHAR(string,i),car) == 1) | |
| − | + | RETURN i | |
| − | + | END | |
| − | + | UNTIL ((i=i+1) > size) | |
| − | + | RETURN 0 | |
| − | + | END | |
| − | + | ||
Revision as of 10:54, 21 May 2010
FUNCTION Find(string,car,start) LOCAL i size
i = start size = LEN(string) IF ((start <= 0) || (start > size) || (CMP(car,"") == 1)) RETURN -1 END DO IF (CMP(CHAR(string,i),car) == 1) RETURN i END UNTIL ((i=i+1) > size) RETURN 0 END
Description
Find
Function: find a character into a string from a specified start position
Call: Find(string,car,start)
Arguments:
- string = characters string
- car = character to look for
- start = start position in string
Return: position of character
0 if character does not exist into string -1 if invalid position (negative, null or higher)
