xsd boolean element type accept true but not True How can I make it accept it

Question

I am using xmllint --schema option to validate my XML that looks like this   lt XML gt   lt Active gt True lt  Active gt   lt  XML gt    In my schema file  I have following line that describes Active element    lt xsd element name  Active  type  xs boolean    gt    When I run xmllint  I get error messages that says       tmp schema validation xml 73  element   Active  Schemas validity error     Element  Active    True  is not a   valid value of the atomic type    xs boolean     When I change the XML to   lt Active gt true lt  Active gt    Then the error message disappears   So  it looks like xsd boolean means it s all lowercase  true false  but not  True False  to xmllint   My question is  how can I make xmllint to accept  True  for xsd boolean type  Or is there different tools that I can use that will validate this XML  Changing the XML or schema is not my option at this point   Thanks

User · Accepted Answer

You cannot    According to the XML Schema specification  a boolean is true or false   True is not valid       3 2 2 1 Lexical representation   An instance of a datatype that is defined as   boolean   can have the    following legal literals  true  false  1  0       3 2 2 2 Canonical representation   The canonical representation for boolean is the set of    literals  true  false      If the tool you are using truly validates against the XML Schema standard  then you cannot convince it to accept True for a boolean

User · Answer

If you re on Linux  or have cygwin available on Windows  you can run the input XML through a simple sed script that will replace  lt Active gt True lt  Active gt  with  lt Active gt true lt  Active gt   like so   cat  lt your XML file gt    sed  sX lt Active gt True lt  Active gt X lt Active gt true lt  Active gt X    xmllint --schema -   If you re not  you can still use a non-validating xslt pocessor  xalan  saxon etc   to run a simple xslt transformation on the input  and only then pipe it to xmllint   What the xsl should contain something like below  for the example you listed above  the xslt processor should be 2 0 capable     lt  xml version  1 0   gt   lt xsl stylesheet xmlns xsl  http   www w3 org 1999 XSL Transform  version  2 0  gt       lt xsl output method  xml  indent  yes   gt       lt xsl template match     gt       lt xsl for-each select  XML  gt           lt xsl for-each select  Active  gt               lt xsl value-of select   replace current     True   true     gt           lt  xsl for-each gt       lt  xsl for-each gt       lt  xsl template gt   lt  xsl stylesheet gt

User · Answer

xs boolean is predefined with regard to what kind of input it accepts  If you need something different  you have to define your own enumeration     lt xs simpleType name  my boolean  gt       lt xs restriction base  xs string  gt         lt xs enumeration value  True   gt         lt xs enumeration value  False   gt       lt  xs restriction gt     lt  xs simpleType gt

[xml] xsd:boolean element type accept "true" but not "True". How can I make it accept it?

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