Returning a substring from a string

getstr()

Return a substring from a string

SYNTAX

getstr(source, position, length)

Return a substring from a longer string.

source	The source string.
position	The starting position of the substring to be extracted. The first character in source is position 1. If position is less than 1, or greater than the length of source, then a null string is returned.
length	The length of the substring to be extracted. If the specified length is greater than the number of characters remaining in the field after position, then only those characters remaining are returned.

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EXAMPLE

If Field is longer than Length, this function trims it and adds “…” to indicate the truncation:

!Function StringFormat(Field, Length) {
!temp Output,,a255

     if (strlen(Field) > Length) then Output = getstr(Field, 1, Length -3) / "..." \
          else Output = Field

     return Output
}

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RELATED TOPICS

String handling functions