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import re
def resolve_var_substitutions(text):
# The <sub .../> here is not the HTML subscript element <sub>...</sub>,
# and therefore is invalid HTML.
# so this code substitutes the whole sub element with contents of its idref prefixed by $
# as occurrence of sub with idref implies that substitution of XCCDF values takes place
return re.sub(
r'<sub\s+idref="([^"]*)"\s*/>', r"<tt>$\1</tt>", text)
def resolve_var_substitutions_in_rule(rule):
rule.description = resolve_var_substitutions(rule.description)
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