Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 124 insertions, 0 deletions

diff --git a/testing/web-platform/tests/mathml/tools/operator-dictionary.py b/testing/web-platform/tests/mathml/tools/operator-dictionary.py
new file mode 100755
index 0000000000..22009c9efc
--- /dev/null
+++ b/testing/web-platform/tests/mathml/tools/operator-dictionary.py
@@ -0,0 +1,124 @@
+#!/usr/bin/env python3
+
+from lxml import etree
+from utils.misc import downloadWithProgressBar, UnicodeXMLURL, InlineAxisOperatorsURL
+import json, re
+from utils import mathfont
+
+NonBreakingSpace = 0x00A0
+
+def parseHexaNumber(string):
+    return int("0x%s" % string, 16)
+
+def parseHexaSequence(string):
+    return tuple(map(parseHexaNumber, string[1:].split("-")))
+
+def parseSpaces(value, entry, names):
+    for name in names:
+        attributeValue = entry.get(name)
+        if attributeValue is not None:
+            value[name] = int(attributeValue)
+
+def parseProperties(value, entry, names):
+    attributeValue = entry.get("properties")
+    if attributeValue is not None:
+        for name in names:
+            if attributeValue.find(name) >= 0:
+                value[name] = True
+
+def buildKeyAndValueFrom(characters, form):
+    # Concatenate characters and form to build the key.
+    key = ""
+    for c in characters:
+        key += chr(c)
+    key += " " + form
+    # But save characters as an individual property for easier manipulation in
+    # this Python script.
+    value = {
+        "characters": characters,
+    }
+    return key, value
+
+
+# Retrieve the spec files.
+inlineAxisOperatorsTXT = downloadWithProgressBar(InlineAxisOperatorsURL)
+unicodeXML = downloadWithProgressBar(UnicodeXMLURL)
+
+# Extract the operator dictionary.
+xsltTransform = etree.XSLT(etree.parse("./operator-dictionary.xsl"))
+
+# Put the operator dictionary into a Python structure.
+inlineAxisOperators = {}
+with open(inlineAxisOperatorsTXT, mode="r") as f:
+    for line in f:
+        hexaString = re.match("^U\+([0-9A-F]+)", line).group(1)
+        inlineAxisOperators[parseHexaNumber(hexaString)] = True
+
+operatorDictionary = {}
+root = xsltTransform(etree.parse(unicodeXML)).getroot()
+for entry in root:
+    characters = parseHexaSequence(entry.get("unicode"))
+    assert characters != (NonBreakingSpace)
+    key, value = buildKeyAndValueFrom(characters, entry.get("form"))
+    # There is no dictionary-specified minsize/maxsize values, so no need to
+    # parse them.
+    # The fence, separator and priority properties don't have any effect on math
+    # layout, so they are not added to the JSON file.
+    parseSpaces(value, entry, ["lspace", "rspace"])
+    parseProperties(value, entry, ["stretchy", "symmetric", "largeop",
+                                   "movablelimits", "accent"])
+    if (len(characters) == 1 and characters[0] in inlineAxisOperators):
+        value["horizontal"] = True
+    operatorDictionary[key] = value
+
+# Create entries for the non-breaking space in all forms in order to test the
+# default for operators outside the official dictionary.
+for form in ["infix", "prefix", "suffix"]:
+    key, value = buildKeyAndValueFrom(tuple([NonBreakingSpace]), form)
+    operatorDictionary[key] = value
+
+# Create a WOFF font with glyphs for all the operator strings.
+font = mathfont.create("operators", "Copyright (c) 2019 Igalia S.L.")
+
+# Set parameters for largeop and stretchy tests.
+font.math.DisplayOperatorMinHeight = 2 * mathfont.em
+font.math.MinConnectorOverlap = mathfont.em // 2
+
+# Set parameters for accent tests so that we only have large gap when
+# overscript is an accent.
+font.math.UpperLimitBaselineRiseMin = 0
+font.math.StretchStackTopShiftUp = 0
+font.math.AccentBaseHeight = 2 * mathfont.em
+font.math.OverbarVerticalGap = 0
+
+mathfont.createSizeVariants(font, True)
+
+# Ensure a glyph exists for the combining characters that are handled specially
+# in the specification:
+# U+0338 COMBINING LONG SOLIDUS OVERLAY
+# U+20D2 COMBINING LONG VERTICAL LINE OVERLAY
+for combining_character in [0x338, 0x20D2]:
+    mathfont.createSquareGlyph(font, combining_character)
+
+for key in operatorDictionary:
+    value = operatorDictionary[key]
+    for c in value["characters"]:
+        if c in font:
+            continue
+        if c == NonBreakingSpace:
+            g = font.createChar(c)
+            mathfont.drawRectangleGlyph(g, mathfont.em, mathfont.em // 3, 0)
+        else:
+            mathfont.createSquareGlyph(font, c)
+        mathfont.createStretchy(font, c, c in inlineAxisOperators)
+mathfont.save(font)
+
+# Generate the python file.
+for key in operatorDictionary:
+    del operatorDictionary[key]["characters"] # Remove this temporary value.
+JSON = {
+    "comment": "This file was automatically generated by operator-dictionary.py. Do not edit.",
+    "dictionary": operatorDictionary
+}
+with open('../support/operator-dictionary.json', 'w') as fp:
+    json.dump(JSON, fp, sort_keys=True, ensure_ascii=True)