AF 10-07-03
proc readStringInfo {file array} {
upvar $array ret
array set ret {}
set fh [open $file r]
fconfigure $fh -encoding unicode -eofchar {}
set data [read $fh]
close $fh
set s [string first "StringFileInfo\000" $data]
if {$s < 0} return
incr s -3
if {![regexp {(.)\000(.)StringFileInfo\000(.)\000(.)(....)(....)\000} [string range $data $s end] --> len type len2 type2 lang code]} {
return
}
array set ret [list Language $lang CodePage $code]
set len [expr [scan $len %c] / 2]
set len2 [expr [scan $len2 %c] / 2]
set data [string range $data $s [expr {$s + $len}]]
set s 30
while {$s < $len2} {
scan [string range $data $s end] %c%c%c slen vlen type
if {$slen == 0} return
set slen [expr {$slen / 2}]
set name [string range $data [expr {$s + 3}] [expr {$s + $slen - $vlen - 1}]]
set value [string range $data [expr {$s + $slen - $vlen}] [expr {$s + $slen - 2}]]
set s [expr {$s + $slen + ($slen % 2)}]
set ret([string trimright $name \000]) $value
}
}
proc writeStringInfo {file array} {
upvar $array val
set fh [open $file r+]
fconfigure $fh -encoding unicode -eofchar {}
set data [read $fh]
set s [string first "StringFileInfo\000" $data]
if {$s < 0} { close $fh; error "no stringfileinfo found" }
if {![info exists val(CodePage)]} { set val(CodePage) 04b0 }
if {![info exists val(Language)]} { set val(Language) 0409 }
incr s -3
set len [scan [string index $data $s] %c]
seek $fh [expr {$s * 2}] start
puts -nonewline $fh [format "%c\000\001StringFileInfo\000%c\000\001%s%s\000" $len [expr {$len - 36}] $val(Language) $val(CodePage)]
unset val(CodePage) val(Language)
set olen $len
set len [expr {($len / 2) - 30}]
foreach x [array names val] {
set vlen [expr {[string length $val($x)] + 1}]
set nlen [string length $x]
set npad [expr {$nlen % 2}]
set tlen [expr {$vlen + $nlen + $npad + 4}]
set tpad [expr {$tlen % 2}]
if {($tlen + $tpad) > $len} { set error "too long" ; continue }
puts -nonewline $fh [format %c%c\001%s\000%s%s\000%s [expr {$tlen * 2}] $vlen $x [string repeat \000 $npad] $val($x) [string repeat \000 $tpad]]
set len [expr {$len - $tlen - $tpad}]
}
puts -nonewline $fh [string repeat \000 $len]
puts -nonewline $fh [string range $data [expr {$s + ($olen / 2)}] end]
close $fh
if {[info exists error]} { error $error }
}
if 0 {
readStringInfo $argv test
array set test [list FileDescription "HI! I'm a new file description"]
writeStringInfo $argv test
}
readStringInfo $argv test
parray test