STRTRIM Function

Removes extra blank spaces from an input string.

result = STRTRIM(string [, flag])

string The string that will have leading and/or trailing blanks removed.

If not of type string, string is converted to string using the default formatting rules of PV-WAVE. (These rules are described in Free Format Output in Chapter 8 of the PV-WAVE Programmer's Guide.)

flag Controls the action of STRTRIM:

• If zero or not present, removes trailing blanks.

• If 1, removes leading blanks.

• If 2, removes both leading and trailing blanks.

result A copy of string with extra (leading and/or trailing) blank spaces removed. If string is an array, the result is an array with the same structureeach element contains a trimmed copy of the corresponding element of string.

None.

In this example, STRTRIM is used to trim trailing, leading, then trailing and leading blanks from a string.

a = '    A String   '

; Create a string with both leading and trailing blanks.

INFO, a

; Examine the contents of a. Note the presence of both leading and

; trailing blanks.

VARIABLE          STRING    = '    A String   '
b = STRTRIM(a)

; Remove trailing blanks from a.

INFO, b

VARIABLE              STRING        = '        A String'

; Note that all trailing blanks are removed.

b = STRTRIM(a, 1)

; Remove leading blanks from a.

INFO, b

VARIABLE          STRING    = 'A String   '

; Examine the results. Note that all leading blanks are removed.

b = STRTRIM(a, 2)

; Remove both leading and trailing blanks from a.

INFO, b

VARIABLE           STRING    = 'A String'

; Note that all leading and trailing blanks are removed.

STRCOMPRESS