String functions

• len
• mid
  
• left
  
• right
  

len   

Syntax
string_length  = len( input_string )

Syntax:

string_length = len( input_string ) 

Parameter description:

Name	Type	Description
input_string	string	string to retrieve the length from

Return value: string_length = length of input string

Code example:

Get the length of the string "Hello" (= 5)

print len( "Hello" )

mid  

Syntax:

retstr = mid( instring, startpos, length ) 

Parameter description:

Name	Type	Description
instring	string	string from which you want to retrieve a substring
startpos	integer	starting position of substring
length	integer	Length of string to be retreaved

Return value: new substring (Type string)

Code example:

Display the substring "world" of "Hello world" (Startpos 6 and length 5).

print mid( "Hello world", 6, 5 )

left  

Syntax:

retstr = msgbox( instring , length ) 

Parameter description:

Name	Type	Description
instring	string	String to retrieve substring from
length	integer	Number of character to retrieve

Return value: substring created of  "length" leading characters from inputstring.

Code example:

Display the leading 5 character of string "Hello world" (Result "Hello").

print left( "Hello world" )

right  

Syntax:

ret = right( instring , length ) 

Parameter description:

Name	Type	Description
instring	string	String to retrieve substring from
length	integer	Number of character to retrieve

Return value: result string

Code example:

Display the last 5 characters of string "Hello world" (Result "world").

Print right( "Hello world" )