export_ns_set_value

export_ns_set_value   variable   { form "" }

looks for variable in the given form ns_set and returns value="foo" if it exists otherwise returns empty string.

uses ns_conn form by default.

Source code:

 
    if {[empty_string_p $form]} { 
        set form [ns_conn form]
    }
    
    if {![empty_string_p $form]} { 
        set i [ns_set find $form $variable]
        if { $i > -1 } { 
            return "value=\"[philg_quote_double_quotes [ns_set value $form $i]]\""
        }
    }
    return {}