MUMPS Functions $PIECE: Difference between revisions
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The $PIECE function returns a substring delimited by a specified string delimiter made up of one or more characters. In M, $PIECE() returns a logical field from a logical record. | The $PIECE function returns a substring delimited by a specified string delimiter made up of one or more characters. In M, $PIECE() returns a logical field from a logical [[record~|Record]]. | ||
$PIECE() provides a tool for efficiently using values that contain multiple elements or fields, each of which may be variable in length. | $PIECE() provides a tool for efficiently using values that contain multiple elements or fields, each of which may be variable in length. | ||
Latest revision as of 13:54, 1 April 2012
The $PIECE function returns a substring delimited by a specified string delimiter made up of one or more characters. In M, $PIECE() returns a logical field from a logical Record.
$PIECE() provides a tool for efficiently using values that contain multiple elements or fields, each of which may be variable in length.
Example:
GTM> FOR i=0:1:3 WRITE !,$PIECE("1 2"," ",i),"<"
<
1<
2<
<
GTM>
This loop displays the result of $PIECE(), specifying a space as a delimiter, a piece position "before," first and second, and "after" the string.
- From the GT.M Programmers Guide, Functions, $Piece().
