# return 1 (true) if strings are equal proc string_equal_p {str1 str2} { if {[string compare $str1 $str2] == 0} { return 1 } return 0 } # return 1 (true) if the string empty proc empty_string_p {str} { if { [string length $str] == 0 } { return 1 } else { return 0 } } # stolen from ACS 3x # return HTML text that can be inserted into HTML (by # qutoing special HTML chars) proc ad_quotehtml { arg } { # we have to do & first or we'll hose ourselves with the ones lower down regsub -all & $arg \\&\; arg regsub -all \" $arg \\"\; arg regsub -all < $arg \\<\; arg regsub -all > $arg \\>\; arg return $arg } # dump a node of an XML doc proc dump_node {node_id level} { set name [ns_xml node name $node_id] set type [ns_xml node type $node_id] set content [ns_xml node getcontent $node_id] if { $level > 0 } { ns_write "
  • " } if { $level == 0 } { ns_write "root node id=$node_id name=$name " } else { ns_write "node id=$node_id name=$name " } ns_write "type=$type " # if a node is an ATTRIBUTE I would like to get the names and values of # attributes but it isn't possible. You need to know the name of the # attribute up-front if { ![string_equal_p $type "attribute"] && ![string_equal_p $type "element"] } { ns_write "content=$content\n" } } # recursively dump the tree of an XML doc proc dump_tree_rec {children level} { if { $level > 0 } { ns_write "\n" } } # dump XML document proc dump_doc {doc_id} { ns_write "doc id=$doc_id
    \n" set root_id [ns_xml doc root $doc_id] dump_tree_rec [list $root_id] 0 } # return HTML code for the textarea for submitting # XML documents proc get_form_html_code {} { return "
    Type your XML document here:

    " } # beginning of the real stuff set form_data [ns_getform] # what we'll show if nothing has been provided set default_xml_doc "this is a test of xml and blopperhelloand another test" # an example of XML file from linuxtoday.com headlines set linuxtoday_xml_doc " Kernel Cousin Debian Hurd #73 By Paul Emsley And Zack Brown http://linuxtoday.com/news_story.php3?ltsn=2000-12-28-001-04-OS-DB marty Open Source,Debian 0 Zope 2.2.5 b1 released http://linuxtoday.com/news_story.php3?ltsn=2000-12-27-006-04-OS-SW marty Open Source,Software 0 " # parse either submitted data or default simple example # or example of linuxtoday.com XML headlines file if { $form_data != "" } { set xml_doc [ns_set get $form_data "xml_doc"] if { $xml_doc == "" } { if { [ns_set get $form_data "show_linuxtoday_p"] == "1" } { set xml_doc $linuxtoday_xml_doc } else { set xml_doc $default_xml_doc } } } else { set xml_doc $default_xml_doc } # generate HTTP headers ns_write "HTTP/1.0 200 OK MIME-Version: 1.0 Content-Type: text/html\n\n" # now generate HTML text of the document ns_write " Test of xml

    Testing XML parsing in AOLserver

    \n" if { [catch {set doc_id [ns_xml parse $xml_doc]} err] } { ns_write "There was an error parsing the following XML document: 
    \n"
    ns_write [ad_quotehtml $xml_doc]
    ns_write "\n
    Error message is: 
    \n"
    ns_write [ad_quotehtml $err]
    ns_write "\n
    " ns_write "\n" return } ns_write "The following XML document: 
    \n"
ns_write [ad_quotehtml $xml_doc]
ns_write "\n
     is represented by the following tree:

    \n" dump_doc $doc_id ns_write [get_form_html_code] ns_write " "