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module REXML
# A template for stream parser listeners.
# Note that the declarations (attlistdecl, elementdecl, etc) are trivially
# processed; REXML doesn't yet handle doctype entity declarations, so you
# have to parse them out yourself.
module StreamListener
# Called when a tag is encountered.
# @p name the tag name
# @p attrs an array of arrays of attribute/value pairs, suitable for
# use with assoc or rassoc. IE, <tag attr1="value1" attr2="value2">
# will result in
# tag_start( "tag", # [["attr1","value1"],["attr2","value2"]])
def tag_start name, attrs
end
# Called when the end tag is reached. In the case of <tag/>, tag_end
# will be called immidiately after tag_start
# @p the name of the tag
def tag_end name
end
# Called when text is encountered in the document
# @p text the text content.
def text text
end
# Called when an instruction is encountered. EG: <?xsl sheet='foo'?>
# @p name the instruction name; in the example, "xsl"
# @p instruction the rest of the instruction. In the example,
# "sheet='foo'"
def instruction name, instruction
end
# Called when a comment is encountered.
# @p comment The content of the comment
def comment comment
end
# Handles a doctype declaration. Any attributes of the doctype which are
# not supplied will be nil. # EG, <!DOCTYPE me PUBLIC "foo" "bar">
# @p name the name of the doctype; EG, "me"
# @p pub_sys "PUBLIC", "SYSTEM", or nil. EG, "PUBLIC"
# @p long_name the supplied long name, or nil. EG, "foo"
# @p uri the uri of the doctype, or nil. EG, "bar"
def doctype name, pub_sys, long_name, uri
end
# If a doctype includes an ATTLIST declaration, it will cause this
# method to be called. The content is the declaration itself, unparsed.
# EG, <!ATTLIST el attr CDATA #REQUIRED> will come to this method as "el
# attr CDATA #REQUIRED". This is the same for all of the .*decl
# methods.
def attlistdecl content
end
# <!ELEMENT ...>
def elementdecl content
end
# <!ENTITY ...>
def entitydecl content
end
# <!NOTATION ...>
def notationdecl content
end
# Called when %foo; is encountered in a doctype declaration.
# @p content "foo"
def entity content
end
# Called when <![CDATA[ ... ]]> is encountered in a document.
# @p content "..."
def cdata content
end
# Called when an XML PI is encountered in the document.
# EG: <?xml version="1.0" encoding="utf"?>
# @p version the version attribute value. EG, "1.0"
# @p encoding the encoding attribute value, or nil. EG, "utf"
# @p standalone the standalone attribute value, or nil. EG, nil
def xmldecl version, encoding, standalone
end
end
end
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