Difference between revisions of "DIR()"

Latest revision as of 16:54, 27 November 2009

Purpose

Function to perform directory search

Syntax

DIR(<skeleton>,<expL1>,<expL2>)

See Also

ADIR(), FILE(), MENU FILES

Description

The DIR() function scans the current directory returning the names of files which match the pattern <skeleton>. If <expL1> is .T., then the scan starts at the first file in the directory otherwise it continues from the last file returned. If <expL2> is .T., then characters following ';' in the file name will be discarded, as will the ';'. The <expL2> or "trim" parameter is only of use in OpenVMS where the file names returned can have version numbers.

Example

// Delete existing text document
procedure del_files
parameter m_confirm
set message to "Operation in progress."
file_name=dir("*.txt",.T.,.T.)
do while not empty(file_name)
    if m_confirm
        dialog message "Erase &file_name.? (Y/N)"
    endif
    if lastkey()=asc('Y') or not m_confirm
        set message to "Deleting &file_name."
        erase &file_name
    endif
    file_name=dir("*.txt",.F.,.T.)
enddo
return
 
del_files(.T.)

Products

Recital Server, Recital