TRIMLEN(3F) Last changed: 3-3-97
NAMETRIMLEN - Returns the length of a character argument without counting
trailing blanks
SYNOPSIS
INTEGER trimlen
intlen = TRIMLEN(string)IMPLEMENTATION
UNICOS, UNICOS/mk, and IRIX systems
DESCRIPTIONTRIMLEN is an integer function that returns the length of a character
argument without counting the trailing blanks. The function must be
declared as type integer in the calling routine. The string argument
must be of type character.
This function is intended for use as part of the substring notation.
Examples 2 and 3 show the TRIMLEN function used in this manner. The
value of each of the parts of the substring notation must be as
follows:
1 <= leftmostpos <= rightmostpos <= stringlength
leftmostpos is the leftmost character position in the substring,
rightmostpos is the rightmost character position in the substring, and
stringlength is the declared length of the character entity. TRIMLEN
returns a value of 1 for a string of all blanks.
EXAMPLES
Example 1: A program using the function TRIMLEN could do the
following:
INTEGER TRIMLEN
CHARACTER*80 STRING
STRING = ' '
STRING(20:47) = 'TEST TRIMLEN LENGTH RETURNED'
INTLEN = TRIMLEN(STRING)
WRITE(6,1) INTLEN, STRING(1:INTLEN)
1 FORMAT(' LENGTH=',I5,' STRING=',A,'-DONE')
PRINT 2,'12345678901234567890123456789012345678901234567890'
2 FORMAT(21X,A)
END
The output of the program is as follows:
LENGTH= 47 STRING= TEST TRIMLEN LENGTH RETURNED-DONE
12345678901234567890123456789012345678901234567890
Example 2: This example produces a string with the character <
written following the last nonblank character of STRING:
WRITE(6,901)STRING(1:TRIMLEN(STRING))
901 FORMAT(' The string is >',A,'<')
Example 3: In this example, although NEW may have trailing blanks,
the character < is written after the last nonblank character in
STRING:
NEW = STRING(1:TRIMLEN(STRING)) // '< The end'
SEE ALSO
Application Programmer's Library Reference Manual, publication SR-
2165, for the printed version of this man page.
