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#!/usr/bin/env python3
from lxml import etree
from utils.misc import downloadWithProgressBar, UnicodeXMLURL
from utils import mathfont
# Retrieve the unicode.xml file if necessary.
unicodeXML = downloadWithProgressBar(UnicodeXMLURL)
# Extract the mathvariants transformation.
xsltTransform = etree.XSLT(etree.XML('''\
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:strip-space elements="*"/>
<xsl:template match="charlist">
<root><xsl:apply-templates select="character"/></root>
</xsl:template>
<xsl:template match="character">
<xsl:if test="surrogate">
<entry>
<xsl:attribute name="mathvariant">
<xsl:value-of select="surrogate/@mathvariant"/>
</xsl:attribute>
<xsl:attribute name="baseChar">
<xsl:value-of select="surrogate/@ref"/>
</xsl:attribute>
<xsl:attribute name="transformedChar">
<xsl:choose>
<xsl:when test="bmp">
<xsl:value-of select="bmp/@ref"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="@id"/>
</xsl:otherwise>
</xsl:choose>
</xsl:attribute>
</entry>
</xsl:if>
</xsl:template>
</xsl:stylesheet>'''))
# Put the mathvariant transforms into a Python structure.
mathvariantTransforms = {}
root = xsltTransform(etree.parse(unicodeXML)).getroot()
def parseCodePoint(aHexaString):
return int("0x%s" % aHexaString[1:], 16)
for entry in root:
mathvariant = entry.get("mathvariant")
baseChar = parseCodePoint(entry.get("baseChar"))
transformedChar = parseCodePoint(entry.get("transformedChar"))
if mathvariant not in mathvariantTransforms:
mathvariantTransforms[mathvariant] = {}
mathvariantTransforms[mathvariant][baseChar] = transformedChar
# There is no "isolated" mathvariant.
del mathvariantTransforms["isolated"]
# Automatic mathvariant uses the same transform as italic.
# It is handled specially (see below).
mathvariantTransforms["auto"] = mathvariantTransforms["italic"]
# Create a WOFF font for each mathvariant.
for mathvariant in mathvariantTransforms:
if mathvariant == "auto":
continue
font = mathfont.create("mathvariant-%s" % mathvariant,
"Copyright (c) 2016 MathML Association")
for baseChar in mathvariantTransforms[mathvariant]:
if baseChar not in font:
mathfont.createGlyphFromValue(font, baseChar)
transformedChar = mathvariantTransforms[mathvariant][baseChar]
mathfont.createGlyphFromValue(font, transformedChar)
mathfont.save(font)
# Common function to generate test for MathML mathvariant / CSS text-transform.
def generateTestFor(mathvariant, mathml):
assert mathml or mathvariant == "auto", "These tests have been removed!"
print("Generating tests for %s..." % mathvariant, end="")
if mathml:
reftest = open(
"../relations/css-styling/mathvariant-%s.html" % mathvariant, "w")
reftestReference = open(
"../relations/css-styling/mathvariant-%s-ref.html" % mathvariant, "w")
else:
reftest = open(
"../../css/css-text/text-transform/math/text-transform-math-%s-001.html" % mathvariant, "w")
reftestReference = open(
"../../css/css-text/text-transform/math/text-transform-math-%s-001-ref.html" % mathvariant, "w")
source = '\
<!DOCTYPE html>\n\
<html>\n\
<head>\n\
<meta charset="utf-8"/>\n\
<title>%s</title>\n'
if mathml:
reftest.write(source % ("mathvariant %s" % mathvariant))
reftestReference.write(
source % ("mathvariant %s (reference)" % mathvariant))
else:
reftest.write(source % ("text-transform math-%s" % mathvariant))
reftestReference.write(
source % ("text-transform math-%s (reference)" % mathvariant))
if mathvariant == "auto":
mathAssert = "Verify that a single-char <mi> is equivalent to an <mi> with the transformed italic unicode character."
mapping = "italic"
else:
mathAssert = "Verify that a single-char <mtext> with a %s mathvariant is equivalent to an <mtext> with the transformed unicode character." % mathvariant
mapping = mathvariant
if mathml:
source = '\
<link rel="help" href="https://w3c.github.io/mathml-core/#css-styling">\n\
<link rel="help" href="https://w3c.github.io/mathml-core/#the-mathvariant-attribute">\n\
<link rel="help" href="https://w3c.github.io/mathml-core/#new-text-transform-values">\n\
<link rel="help" href="https://w3c.github.io/mathml-core/#%s-mappings">\n\
<link rel="match" href="mathvariant-%s-ref.html"/>\n\
<meta name="assert" content="%s">\n'
reftest.write(source % (mapping, mathvariant, mathAssert))
else:
source = '\
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/3745"/>\n\
<link rel="help" href="https://w3c.github.io/mathml-core/#new-text-transform-values">\n\
<link rel="help" href="https://w3c.github.io/mathml-core/#%s-mappings">\n\
<link rel="match" href="text-transform-math-%s-001-ref.html"/>\n\
<meta name="assert" content="Verify that a character with \'text-transform: math-%s\' renders the same as the transformed unicode character.">\n'
reftest.write(source % (mapping, mathvariant, mathvariant))
WOFFfont = "mathvariant-%s.woff" % mapping
source = '\
<style>\n\
@font-face {\n\
font-family: TestFont;\n\
src: url("/fonts/math/%s");\n\
}\n\
body > span {\n\
padding: 10px;\n\
}\n\
span > span {\n\
font-family: monospace;\n\
font-size: 10px;\n\
}\n\
.testfont {\n\
font-family: TestFont;\n\
font-size: 10px;\n\
}\n\
</style>\n\
<body>\n\
<!-- Generated by mathml/tools/mathvariant.py; DO NOT EDIT. -->\n\
<p>Test passes if all the equalities below are true.</p>\n' % WOFFfont
if mathml:
reftest.write(source)
reftestReference.write(source)
else:
reftest.write(source)
reftestReference.write(source)
charIndex = 0
for baseChar in mathvariantTransforms[mathvariant]:
transformedChar = mathvariantTransforms[mathvariant][baseChar]
if mathvariant == "auto":
tokenTag = '<mi>&#x%0X;</mi>' % baseChar
tokenTagRef = '<mi>&#x%0X;</mi>' % transformedChar
else:
tokenTag = '<mtext mathvariant="%s">&#x%0X;</mtext>' % (
mathvariant, baseChar)
tokenTagRef = '<mtext>&#x%0X;</mtext>' % transformedChar
if mathml:
reftest.write(' <span><math class="testfont">%s</math>=<span>%05X</span></span>' %
(tokenTag, transformedChar))
reftestReference.write(
' <span><math class="testfont">%s</math>=<span>%05X</span></span>' % (tokenTagRef, transformedChar))
else:
reftest.write(' <span><span class="testfont" style="text-transform: math-%s">&#x%0X;</span>=<span>%05X</span></span>' %
(mathvariant, baseChar, transformedChar))
reftestReference.write(
' <span><span class="testfont">&#x%0X;</span>=<span>%05X</span></span>' % (transformedChar, transformedChar))
charIndex += 1
if charIndex % 10 == 0:
reftest.write('<br/>')
reftestReference.write('<br/>')
reftest.write('\n')
reftestReference.write('\n')
source = '</body>\n</html>\n'
reftest.write(source)
reftestReference.write(source)
reftest.close()
reftestReference.close()
print(" done.")
# Generate css/css-text/text-transform/math/text-transform-math-auto-001.html
generateTestFor(mathvariant="auto", mathml=False)
generateTestFor(mathvariant="auto", mathml=True)
# Generate italic_mapping.js file used by selection tests.
print("Generating italic_mapping.js...", end="")
italic_mapping = open("../../css/css-text/text-transform/math/italic-mapping.js", "w")
italic_mapping.write("// Generated by mathml/tools/mathvariant.py; DO NOT EDIT.\n");
italic_mapping.write("let italic_mapping = {\n");
for baseChar in mathvariantTransforms["italic"]:
transformedChar = mathvariantTransforms[mathvariant][baseChar]
italic_mapping.write(" 0x%0X: 0x%0X,\n" % (baseChar, transformedChar));
italic_mapping.write("}\n");
italic_mapping.close()
print(" done.")
# Other mathvariant tests can be generated by the following command. They are
# still use internally by browsers implementing full mathvariant support.
# See https://github.com/w3c/mathml-core/issues/182
# for mathvariant in mathvariantTransforms:
# generateTestFor(mathvariant, mathml=True)
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