1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
module Nokogiri
module XML
class << self
###
# Create a new Nokogiri::XML::Schema object using a +string_or_io+
# object.
def Schema string_or_io
Schema.new(string_or_io)
end
end
###
# Nokogiri::XML::Schema is used for validating XML against a schema
# (usually from an xsd file).
#
# == Synopsis
#
# Validate an XML document against a Schema. Loop over the errors that
# are returned and print them out:
#
# xsd = Nokogiri::XML::Schema(File.read(PO_SCHEMA_FILE))
# doc = Nokogiri::XML(File.read(PO_XML_FILE))
#
# xsd.validate(doc).each do |error|
# puts error.message
# end
#
# The list of errors are Nokogiri::XML::SyntaxError objects.
class Schema
# Errors while parsing the schema file
attr_accessor :errors
###
# Create a new Nokogiri::XML::Schema object using a +string_or_io+
# object.
def self.new string_or_io
from_document Nokogiri::XML(string_or_io)
end
###
# Validate +thing+ against this schema. +thing+ can be a
# Nokogiri::XML::Document object, or a filename. An Array of
# Nokogiri::XML::SyntaxError objects found while validating the
# +thing+ is returned.
def validate thing
if thing.is_a?(Nokogiri::XML::Document)
validate_document(thing)
elsif File.file?(thing)
validate_file(thing)
else
raise ArgumentError, "Must provide Nokogiri::Xml::Document or the name of an existing file"
end
end
###
# Returns true if +thing+ is a valid Nokogiri::XML::Document or
# file.
def valid? thing
validate(thing).length == 0
end
end
end
end
|
