TABLE OF CONTENTS

::pwtk::xsf::getNAtoms

SYNOPSIS

proc ::pwtk::xsf::getNAtoms {xsfFile} {

PURPOSE

Return the number of atoms in the XSF file.

ARGUMENTS

xsfFile -- name of XSF file

SOURCE

    ::pwtk::fileMustExist $xsfFile XSF
    
    set xsfList [split [::pwtk::skipEmptyLines [::pwtk::readFile $xsfFile]] \n]
    set ind [lsearch $xsfList *PRIMCOOR*]
    if { $ind > -1 } {
        return [lindex [lindex $xsfList [expr {$ind + 1}]] 0]
    } else {
        ::pwtk::error "$xsfFile is not an XSF file" 1
    }
}