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# -*- coding: UTF-8 -*-
# Copyright 2015 Red Hat, Inc.
# Part of clufter project
# Licensed under GPLv2+ (a copy included | http://gnu.org/licenses/gpl-2.0.txt)
"""XSLT helpers"""
__author__ = "Jan Pokorný <jpokorny @at@ Red Hat .dot. com>"
from .utils_xml import NAMESPACES, XSL
NL = '
'
def xslt_identity(particular_selector=''):
return '''\
<xsl:template match="{0}@*|{0}node()"
xmlns:xsl="{1}">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
</xsl:copy>
</xsl:template>'''.format(particular_selector, NAMESPACES[XSL])
def xslt_is_member(item, items):
"""Readable item-itemset membership test"""
items = "\n '|" + "',\n '|".join(items) + "',\n '|'"
return '''\
(contains(concat({1}), concat('|', {0}, '|')))'''.format(item, items)
def xslt_boolean(param):
"""Return true/false value as understood within XSL templates"""
return 'true()' if param else 'false()'
def xslt_params(**d):
"""Convert a provided dictionary into textual XSLT params"""
ret = ""
for k, v in d.iteritems():
ret += '<xsl:param name="{0}" select="{1}"/>\n'.format(
k, xslt_boolean(v) if isinstance(v, bool) else v
)
return ret
def xslt_id_friendly(inner):
"""Make the passed XPath expression yielding string XML ID friendly"""
# XXX apostrophe missing
return '''\
translate(
translate(
{0},
' -/:',
'____'
),
'!"#$%&()*+,;<=>?@[\]^`{{|}}~',
''
)'''.format(inner)
def xslt_string_mapping(d, what="."):
"""Convert dictionary into procedural mapping application (`xsl:when`s)"""
ret = []
for k, v in d.iteritems():
if not isinstance(v, basestring):
continue
ret.append('''\
<xsl:when test="{0} = '{1}'">'''.format(what, k))
ret.append('''\
<xsl:value-of select="'{0}'"/>'''.format(v))
ret.append('''\
</xsl:when>''')
return '\n'.join(ret)
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