On Tuesday 22 May 2007 7:05 pm, Peter Dalgaard wrote:
> Vladimir Dergachev wrote:
> >> I think DTL's suggestion would be most useful when putting a lot of code
> >> in a string, where the escapes make the code harder to read. For
> >> example, just about any function using a complicated regular expression.
> >
> > Also anything using .Tcl(). Quotes in data frame definition are useful
> > because they could be employed to delimit text fields with spaces in
> > them.
>
> .Tcl() is usually the wrong solution anyway, you really should use tcl()
> unless absolutely necessary.
>
Actually I could not figure out how to use tcl() - it seems to work only to
call a single Tcl/Tk command.
I mostly use .Tcl() to create guis along the lines of
foreach {control desc var value} {
label "Just a description" title1 0
entry "Edit some text" text_var {Hello there}
} {
switch -exact -- $control {
label {
label .l$var -text $desc
grid .l$var - -sticky news
}
entry {
label .l$var -text $desc
entry .e$var -variable $var
grid .l$var .e$var -sticky news
global $var
set $var $value
}
# other control types follow
}
}
this can get pretty versatile and works for plots and other things..
best
Vladimir Dergachev
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