String Handling

All programming languages have predefined functions which allow the
manipulation of text strings. Some examples:
LEFT – get a number of characters at the left of the string
RIGHT – get a number of characters at the right of the string
MID – get a number of characters in the middle of the string
LEN / LENGTH – get the length of the string
toUPPER & toLOWER – convert string to upper or lower case characters
TRIM – remove characters from start or end of string, or remove whitespace
from start or end of a string
Most programming languages will include many more string handling functions.
String Handling

String Handling
Example
Duncastle Rugby Club have a computerised system which scans membership
cards and logs the date and time of arrival of members along with the member
name and address. An example string would be:
“13:21 05012016 Johnstone 14 High St, Duncastle DC13 2BZ”
They want the program to display the arrival time of a member on screen when
they scan their card.

String Handling
Example
Note that LiveCode does not have a LEFT function, instead it works with
characters in a string

String Handling
Example
A program is required to count the number of times that the letter “A” appears in
an inputted block of text.

String Handling
Example
Note that LiveCode does not have a MID function, instead it works with
characters in a string

String Handling

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String Handling