OS/2 Procedures Language 2/REXX


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SUBSTR




 >>--SUBSTR(string,n -+-----------------------+-)-----><
                      +-,-+--------+-+------+-+
                          +-length-+ +-,pad-+

SUBSTR returns the substring of string that begins at the nth character, 
and is of length length and padded with pad if necessary. n must be a 
positive whole number. 
If length is omitted, the rest of the string will be returned.  The 
default pad character is a blank. 
Here are some examples: 

SUBSTR('abc',2)          ->    'bc'
SUBSTR('abc',2,4)        ->    'bc  '
SUBSTR('abc',2,6,'.')    ->    'bc....'

Note:    In some situations the positional (numeric) patterns of parsing 
         templates are more convenient for selecting substrings, 
         especially if more than one substring is to be extracted from a 
         string. 
   

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