Am 28.03.2012 11:18, schrieb Harald Oehlmann:
> to react on accept-headers, one must:
> - parse the request header to a tcl-friendly format, e.g. a list.
> Is there any code available ?
>
> I would write a function like:
>
> # headers(Accept-Language) = de-de,de;q=0.8,en-us;q=0.5,en;q=0.3
>
> % accept_list $headers(Accept-Language)
> de-de de en-us en *
>
> The result is ordered by the q element.
> The * signifies that there was no "*;q=0.0" and thus any others are
> implicitly allowed.
There was no answer to the upper post.
Well - here is my proposed function:
<code>
proc ::rivet::accept_list {headerIn} {
set lqValues {}
set lItems {}
foreach itemCur [split $headerIn ,] {
# Find q value as last element separated by ;
set qCur 1
if {[regexp {^(.*); *q=([^;]*)$} $itemCur match itemCur
qString]} {
if { 1 == [scan $qString %f qVal] && $qVal >= 0 &&
$qVal <= 1 } {
set qCur $qVal
}
}
set itemCur [string trim $itemCur]
if {$qCur == 0} {
if {$itemCur in {"*" "*/*" "*-*"}} {
set fNoDefault 1
}
} else {
lappend lqValues $qCur
lappend lItems $itemCur
}
}
set lOut {}
foreach indexCur [lsort -real -decreasing -indices $lqValues] {
lappend lOut [lindex $lItems $indexCur]
}
if {![info exists fNoDefault]} {
lappend lOut "*"
}
return $lOut
}
</code>
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