def transform(self, dom):
# Currency
for currencyNode in dom.xpath("//currency"):
latexMode = utils.etree_in_context(currencyNode, "latex")
symbolNode = currencyNode.find("symbol")
if symbolNode is None:
symbol = "R"
symbolLocation = "front"
else:
symbol = symbolNode.text.strip()
symbolLocation = symbolNode.attrib.get("location", "front")
numberNode = currencyNode.find("number")
if numberNode.text is None:
numberNode.text = ""
# Set default precision to 0 if number is an int, and to 2 if it is a float
try:
int(numberNode.text.strip())
defaultPrecision = 0
except ValueError:
defaultPrecision = 2
currencyPrecision = int(currencyNode.attrib.get("precision", defaultPrecision))
numberNode.text = ("%%.%if" % currencyPrecision) % float(numberNode.text.strip())
replacementNode = etree.Element("dummy")
if symbolLocation == "front":
if latexMode:
replacementNode.text = r"\text{" + symbol + " }"
else:
replacementNode.text = symbol + u"\u00a0"
replacementNode.append(numberNode)
else:
replacementNode.append(numberNode)
if latexMode:
replacementNode.tail = r"\text{ " + symbol + "}"
else:
replacementNode.tail = u"\u00a0" + symbol
utils.etree_replace_with_node_list(currencyNode.getparent(), currencyNode, replacementNode)
# Percentage
for percentageNode in dom.xpath("//percentage"):
latexMode = utils.etree_in_context(percentageNode, "latex")
percentageNode.tag = "number"
if percentageNode.tail is None:
percentageNode.tail = ""
if latexMode:
percentageNode.tail = r"\%" + percentageNode.tail
else:
percentageNode.tail = "%" + percentageNode.tail
# United numbers: ensure that units follow numbers
for node in dom.xpath("//unit_number"):
if (len(node) == 2) and (node[0].tag == "unit") and (node[1].tag == "number"):
unitNode = node[0]
numberNode = node[1]
del node[0]
del node[0]
node.append(numberNode)
node.append(unitNode)
# Numbers
for numberNode in dom.xpath("//number"):
# Avoid shortcode exercise numbers
if (numberNode.getparent().tag == "entry") and (numberNode.getparent().getparent().tag == "shortcodes"):
continue
latexMode = utils.etree_in_context(numberNode, "latex")
if (len(numberNode) == 0) and ("e" in numberNode.text):
# Number in exponential notation: convert to <coeff> and <exp>
numberText = numberNode.text
float(numberText) # Check that it is really a float
numberNode.text = None
numberNode.append(etree.Element("coeff"))
pos = numberText.find("e")
numberNode[-1].text = numberText[:pos]
numberNode.append(etree.Element("exp"))
numberNode[-1].text = str(int(numberText[pos + 1 :]))
if len(numberNode) == 0:
# No children, means it's just a plain number
coeffText = utils.format_number(numberNode.text.strip())
try:
if latexMode:
dummyNode = etree.fromstring(r"<dummy>\text{" + coeffText + "}</dummy>")
else:
dummyNode = etree.fromstring("<dummy>" + coeffText + "</dummy>")
except etree.XMLSyntaxError, msg:
print repr(coeffText)
raise etree.XMLSyntaxError, msg
else:
# Scientific or exponential notation: parse out coefficient, base and exponent
coeffNode = numberNode.find("coeff")
expNode = numberNode.find("exp")
baseNode = numberNode.find("base")
if coeffNode is None:
# Exponential
if baseNode is None:
baseText = utils.format_number("10")
else:
baseText = utils.format_number(baseNode.text.strip())
assert expNode is not None, etree.tostring(numberNode)
expText = utils.format_number(expNode.text.strip())
if latexMode:
dummyNode = etree.fromstring(
r"<dummy>\text{" + baseText + r"}^{\text{" + expText + r"}}</dummy>"
)
else:
dummyNode = etree.fromstring("<dummy>" + baseText + "<sup>" + expText + "</sup></dummy>")
else:
# Scientific notation or plain number (<coeff> only)
coeffText = utils.format_number(coeffNode.text.strip())
if expNode is None:
assert baseNode is None
try:
if latexMode:
dummyNode = etree.fromstring(r"<dummy>\text{" + coeffText + "}</dummy>")
else:
dummyNode = etree.fromstring("<dummy>" + coeffText + "</dummy>")
except etree.XMLSyntaxError, msg:
print repr(coeffText)
raise etree.XMLSyntaxError, msg
else:
if baseNode is None:
def transform(self, dom):
# Currency
for currencyNode in dom.xpath('//currency'):
latexMode = utils.etree_in_context(currencyNode, 'latex')
symbolNode = currencyNode.find('symbol')
if symbolNode is None:
symbol = 'R'
symbolLocation = 'front'
else:
symbol = symbolNode.text.strip()
symbolLocation = symbolNode.attrib.get('location', 'front')
numberNode = currencyNode.find('number')
if numberNode.text is None:
numberNode.text = ''
# Set default precision to 0 if number is an int, and to 2 if it is a float
try:
int(numberNode.text.strip())
defaultPrecision = 0
except ValueError:
defaultPrecision = 2
currencyPrecision = int(currencyNode.attrib.get('precision', defaultPrecision))
numberNode.text = ("%%.%if"%currencyPrecision)%float(numberNode.text.strip())
replacementNode = etree.Element('dummy')
if symbolLocation == 'front':
if latexMode:
replacementNode.text = r'\text{' + symbol + ' }'
else:
replacementNode.text = symbol + u'\u00a0'
replacementNode.append(numberNode)
else:
replacementNode.append(numberNode)
if latexMode:
replacementNode.tail = r'\text{ ' + symbol + '}'
else:
replacementNode.tail = u'\u00a0' + symbol
utils.etree_replace_with_node_list(currencyNode.getparent(), currencyNode, replacementNode)
# Percentage
for percentageNode in dom.xpath('//percentage'):
latexMode = utils.etree_in_context(percentageNode, 'latex')
percentageNode.tag = 'number'
if percentageNode.tail is None:
percentageNode.tail = ''
if latexMode:
percentageNode.tail = r'\%' + percentageNode.tail
else:
percentageNode.tail = '%' + percentageNode.tail
# United numbers: ensure that units follow numbers
for node in dom.xpath('//unit_number'):
if (len(node) == 2) and (node[0].tag == 'unit') and (node[1].tag == 'number'):
unitNode = node[0]
numberNode = node[1]
del node[0]
del node[0]
node.append(numberNode)
node.append(unitNode)
# Numbers
for numberNode in dom.xpath('//number'):
# Avoid shortcode exercise numbers
if (numberNode.getparent().tag == 'entry') and (numberNode.getparent().getparent().tag == 'shortcodes'):
continue
latexMode = utils.etree_in_context(numberNode, 'latex')
if (len(numberNode) == 0) and ('e' in numberNode.text):
# Number in exponential notation: convert to <coeff> and <exp>
numberText = numberNode.text
float(numberText) # Check that it is really a float
numberNode.text = None
numberNode.append(etree.Element('coeff'))
pos = numberText.find('e')
numberNode[-1].text = numberText[:pos]
numberNode.append(etree.Element('exp'))
numberNode[-1].text = str(int(numberText[pos+1:]))
if len(numberNode) == 0:
# No children, means it's just a plain number
coeffText = utils.format_number(numberNode.text.strip())
try:
if latexMode:
dummyNode = etree.fromstring(r'<dummy>\text{' + coeffText + '}</dummy>')
else:
dummyNode = etree.fromstring('<dummy>' + coeffText + '</dummy>')
except etree.XMLSyntaxError, msg:
print repr(coeffText)
raise etree.XMLSyntaxError, msg
else:
# Scientific or exponential notation: parse out coefficient, base and exponent
coeffNode = numberNode.find('coeff')
expNode = numberNode.find('exp')
baseNode = numberNode.find('base')
if coeffNode is None:
# Exponential
if baseNode is None:
baseText = utils.format_number('10')
else:
baseText = utils.format_number(baseNode.text.strip())
assert expNode is not None, etree.tostring(numberNode)
expText = utils.format_number(expNode.text.strip())
if latexMode:
dummyNode = etree.fromstring(r'<dummy>\text{' + baseText + r'}^{\text{' + expText + r'}}</dummy>')
else:
dummyNode = etree.fromstring('<dummy>' + baseText + '<sup>' + expText + '</sup></dummy>')
else:
# Scientific notation or plain number (<coeff> only)
coeffText = utils.format_number(coeffNode.text.strip())
if expNode is None:
assert baseNode is None
try:
if latexMode:
dummyNode = etree.fromstring(r'<dummy>\text{' + coeffText + '}</dummy>')
else:
dummyNode = etree.fromstring('<dummy>' + coeffText + '</dummy>')
except etree.XMLSyntaxError, msg:
print repr(coeffText)
raise etree.XMLSyntaxError, msg
else:
if baseNode is None:
+ coeffText
+ r" } × \text{ "
+ baseText
+ r"}^{\text{"
+ expText
+ r"}}</dummy>"
)
else:
dummyNode = etree.fromstring(
"<dummy>" + coeffText + " × " + baseText + "<sup>" + expText + "</sup></dummy>"
)
utils.etree_replace_with_node_list(numberNode.getparent(), numberNode, dummyNode)
# Units
for unitNode in dom.xpath("//unit"):
latexMode = utils.etree_in_context(unitNode, "latex")
if unitNode.text is None:
unitNode.text = ""
unitNode.text = unitNode.text.lstrip()
if latexMode:
unitNode.text = r"\text{" + unitNode.text
if len(unitNode) == 0:
unitNode.text = unitNode.text.rstrip()
if latexMode:
unitNode.text += "}"
else:
if unitNode[-1].tail is None:
unitNode[-1].tail = ""
unitNode[-1].tail = unitNode[-1].tail.rstrip()
if latexMode:
unitNode[-1].tail += "}"
raise etree.XMLSyntaxError, msg
else:
if baseNode is None:
baseText = utils.format_number('10')
else:
baseText = utils.format_number(baseNode.text.strip())
expText = utils.format_number(expNode.text.strip())
if latexMode:
dummyNode = etree.fromstring(r'<dummy>\text{' + coeffText + r' } × \text{ ' + baseText + r'}^{\text{' + expText + r'}}</dummy>')
else:
dummyNode = etree.fromstring('<dummy>' + coeffText + ' × ' + baseText + '<sup>' + expText + '</sup></dummy>')
utils.etree_replace_with_node_list(numberNode.getparent(), numberNode, dummyNode)
# Units
for unitNode in dom.xpath('//unit'):
latexMode = utils.etree_in_context(unitNode, 'latex')
if unitNode.text is None:
unitNode.text = ''
unitNode.text = unitNode.text.lstrip()
if latexMode:
unitNode.text = r'\text{' + unitNode.text
if len(unitNode) == 0:
unitNode.text = unitNode.text.rstrip()
if latexMode:
unitNode.text += '}'
else:
if unitNode[-1].tail is None:
unitNode[-1].tail = ''
unitNode[-1].tail = unitNode[-1].tail.rstrip()
if latexMode:
unitNode[-1].tail += '}'
