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Simple xml-dtd validator
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| <!ELEMENT note (to,from,heading,body)> | |
| <!ELEMENT to (#PCDATA)> | |
| <!ELEMENT from (#PCDATA)> | |
| <!ELEMENT heading (#PCDATA)> | |
| <!ELEMENT body (#PCDATA)> |
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| <?xml version="1.0" encoding="ISO-8859-1"?> | |
| <!DOCTYPE note SYSTEM "note.dtd"> | |
| <note> | |
| <to>Tove</to> | |
| <from>Jani</from> | |
| <heading>Reminder</heading> | |
| <body>Don't forget me this weekend!</body> | |
| </note> |
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| <?xml version="1.0"?> | |
| <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> | |
| <xs:element name="note"> | |
| <xs:complexType> | |
| <xs:sequence> | |
| <xs:element name="to" type="xs:string"/> | |
| <xs:element name="from" type="xs:string"/> | |
| <xs:element name="heading" type="xs:string"/> | |
| <xs:element name="body" type="xs:string"/> | |
| </xs:sequence> | |
| </xs:complexType> | |
| </xs:element> | |
| </xs:schema> |
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| #!/usr/bin/env ruby | |
| # encoding: utf-8 | |
| # Ensure you have the libxml gem installed: | |
| # gem install 'libxml-ruby' | |
| # | |
| # Use this file as follows: | |
| # ruby validate-xml "path/to/my/file.xml" "path/to/my/file.dtd" | |
| # | |
| # For example, if this file and your xml and dtd files are in the same directory: | |
| # ruby validate-xml "file.xml" "file.dtd" | |
| # | |
| # It will throw an error if there is something wrong, read the error carefully. | |
| # If nothing is wrong, it'll give you a happy message! | |
| # | |
| # Bonus points, if you're using linux/mac, you should be able to omit the "ruby" portion | |
| # of the command by making this file executable, like so: | |
| # chmod +x validate-xml | |
| # | |
| # then you can just use it like this: | |
| # ./validate-xml "path/to/my/file.xml" "path/to/my/file.dtd" | |
| # | |
| # or like this (note that it uses an xsd file): | |
| # ./validate-xml "path/to/my/file.xml" "path/to/my/file.xsd" | |
| # | |
| # NOTE: if you have the xmllint program on your computer, you don't need this! | |
| # xmllint | |
| require 'libxml' | |
| include LibXML | |
| schema_filename = ARGV.pop | |
| doc = XML::Document.file ARGV.pop | |
| result = if schema_filename.end_with? "dtd" | |
| schema = XML::Dtd.new File.read(schema_filename) | |
| doc.validate schema | |
| else | |
| schema = LibXML::XML::Schema.new(schema_filename) | |
| result = doc.validate_schema(schema) do |message,flag| | |
| log.debug(message) | |
| puts message | |
| end | |
| end | |
| puts "No errors, yay!" if result |
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