def traverse(node):
if (node.tag == nsPrefix + 'div') and (node.attrib.get('class') == 'media'):
objectNode = node.find(nsPrefix + 'object')
if objectNode is not None:
if (len(objectNode) > 2) and (objectNode[0].tag == nsPrefix + 'span') and (objectNode[0].attrib.get('class') == 'cnx_label') and (objectNode[1].tag == nsPrefix + 'a') and (objectNode[1].attrib.get('href') == ''):
del objectNode[0]
del objectNode[0]
# Put remaining children of objectNode into node
import utils
utils.etree_replace_with_node_list(node, objectNode, objectNode)
for child in node:
traverse(child)
def traverse(iNode):
if (iNode.tag == 'document') or ((iNode.tag == 'content') and (iNode.getparent().tag == 'document')) or ((iNode.tag == 'section') and (iNode.getparent().tag != 'activity')):
children = iNode.getchildren()
for child in children:
if not traverse(child):
iNode.remove(child)
return True
elif (iNode.tag == 'title') and (iNode.getparent().tag == 'section'):
return True
elif iNode.tag == 'teachers-guide':
etree_replace_with_node_list(iNode.getparent(), iNode, iNode, keepTail=True)
return True
elif iNode.tag == 'exercises':
for tgNode in iNode.xpath('.//teachers-guide'):
etree_replace_with_node_list(tgNode.getparent(), tgNode, tgNode, keepTail=True)
return True
else:
for tag in ['exercises', 'teachers-guide']:
if len(iNode.xpath('.//' + tag)) > 0:
sys.stderr.write('WARNING: Deleting node that contains %s.\n'%tag)
sys.stderr.write(etree.tostring(iNode) + '\n')
return False
def traverse_dom_for_cnxml(self, element):
# traverse every element in tree, find matching environments, transform
for child in element:
self.traverse_dom_for_cnxml(child)
childIndex = 0
while childIndex < len(element):
child = element[childIndex]
if child.tag in ["video", "simulation", "presentation", "box"]:
child.tag = "todo-" + child.tag
childIndex += 1
elif child.tag == "image":
# <image> <arguments/> <src/> </image>
mediaNode = utils.create_node("media")
mediaNode.append(utils.create_node("image"))
mediaNode.attrib["alt"] = "Image"
urlNode = child.find("src")
if urlNode is not None:
mediaNode[0].attrib["src"] = urlNode.text.strip()
else:
mediaNode[0].attrib["src"] = ""
mediaNode.tail = child.tail
element[childIndex] = mediaNode
childIndex += 1
elif child.tag == "figure":
typeNode = child.find("type")
if typeNode is not None:
typ = typeNode.text.strip()
child.attrib["type"] = typ
typeNode.tag = "label"
typeNode.text = {"figure": "Figure", "table": "Table"}[typ]
childIndex += 1
elif child.tag == "caption":
if (len(child) == 1) and (child[0].tag == "para"):
utils.etree_replace_with_node_list(child, child[0], child[0])
childIndex += 1
elif child.tag == "activity":
# <activity type="activity"><title/> <section><title/>...</section> </activity>
child.tag = "example"
child.append(
utils.create_node(
"label",
text={
"g_experiment": "General experiment",
"f_experiment": "Formal experiment",
"i_experiment": "Informal experiment",
"activity": "Activity",
"Investigation": "Investigation",
"groupdiscussion": "Group discussion",
"casestudy": "Case study",
"project": "Project",
}[child.attrib["type"]],
)
)
pos = 1
while pos < len(child):
if child[pos].tag == "section":
sectionNode = child[pos]
assert sectionNode[0].tag == "title"
del child[pos]
child.insert(pos, utils.create_node("para"))
child[pos].append(utils.create_node("emphasis", text=sectionNode[0].text.strip()))
child[pos][-1].attrib["effect"] = "bold"
pos += 1
sectionChildren = sectionNode.getchildren()
for i in range(1, len(sectionChildren)):
child.insert(pos, sectionChildren[i])
pos += 1
else:
pos += 1
childIndex += 1
elif child.tag == "worked_example":
# <worked_example> <title/> <question/> <answer> ... <workstep> <title/> ... </workstep> </answer> </worked_example>
child.tag = "example"
newSubChildren = []
newSubChildren.append(utils.create_node("label", text="Worked example"))
pos = 1
for subChild in child:
if subChild.tag == "title":
newSubChildren.append(subChild)
elif subChild.tag == "question":
newSubChildren.append(subChild)
subChild.tag = "section"
subChild.append(utils.create_node("title", text="Question"))
elif subChild.tag == "answer":
newSubChildren.append(subChild)
subChild.tag = "section"
subChild.append(utils.create_node("title", text="Answer"))
for x in subChild:
if x.tag == "workstep":
x.tag = "section"
childIndex += 1
elif child.tag == "note":
child.insert(
0,
utils.create_node(
"label",
text={"warning": "Warning", "tip": "Tip", "note": "Note", "aside": "Interesting Fact"}.get(
child.attrib["type"], child.attrib["type"]
),
),
)
childIndex += 1
elif child.tag == "math_identity":
del element[childIndex] # Remove math_identity from DOM, still available as child
ruleNode = utils.create_node("rule")
ruleNode.attrib["type"] = "Identity"
child.tag = "statement"
ruleNode.append(child)
element.insert(childIndex, ruleNode)
childIndex += 1
elif child.tag == "nuclear_notation":
namespace = "http://www.w3.org/1998/Math/MathML"
mathNode = utils.create_node("math", namespace=namespace)
mathNode.append(utils.create_node("msubsup", namespace=namespace))
mathNode[-1].append(utils.create_node("mo", namespace=namespace, text=u"\u200b"))
mathNode[-1].append(utils.create_node("mn", namespace=namespace, text=child.find("atomic_number").text))
if child.find("mass_number") is not None:
massNumber = child.find("mass_number").text
else:
massNumber = u"\u200b"
mathNode[-1].append(utils.create_node("mn", namespace=namespace, text=massNumber))
mathNode.append(utils.create_node("mtext", namespace=namespace, text=child.find("symbol").text))
mathNode.tail = child.tail
element[childIndex] = mathNode
childIndex += 1
elif child.tag == "math_extension":
child.tag = "note"
titleNode = child.find("title")
if titleNode is not None:
titleNode.tag = "label"
titleNode.text = u"Extension \u2014 " + titleNode.text.strip()
else:
child.insert(0, utils.create_node("label", text="Extension"))
bodyNode = child.find("body")
utils.etree_replace_with_node_list(child, bodyNode, bodyNode)
childIndex += 1
elif child.tag == "section":
# Check that it is not an activity section
if child.getparent().tag != "activity":
shortCodeNode = child.find("shortcode")
if shortCodeNode is None:
if (child.attrib.get("type") not in ["subsubsection", "subsubsubsection"]) and (
child.find("title").text.strip() != "Chapter summary"
):
print 'WARNING: no shortcode for section "%s"' % child.find("title").text.strip()
shortcode = "SHORTCODE"
else:
shortcode = None
else:
if (child.attrib.get("type") in ["subsubsection", "subsubsubsection"]) or (
child.find("title").text.strip() == "Chapter summary"
):
print 'WARNING: section "%s" should not have a shortcode' % child.find("title").text.strip()
shortcode = shortCodeNode.text.strip()
child.remove(shortCodeNode)
""" # Commented out so that shortcodes do not get displayed
if shortcode is not None:
titleNode = child.find('title')
if len(titleNode) == 0:
if titleNode.text is None:
titleNode.text = ''
titleNode.text += ' [' + shortcode + ']'
else:
if titleNode[-1].tail is None:
titleNode[-1].tail = ''
titleNode[-1].tail += ' [' + shortcode + ']'
"""
childIndex += 1
elif child.tag == "latex":
if child.attrib.get("display", "inline") == "block":
delimiters = "[]"
else:
delimiters = "()"
if child.text is None:
child.text = ""
child.text = "\\" + delimiters[0] + child.text
if len(child) > 0:
if child[-1].text is None:
child[-1].tail = ""
child[-1].tail += "\\" + delimiters[1]
else:
child.text += "\\" + delimiters[1]
utils.etree_replace_with_node_list(element, child, child)
childIndex += len(child)
elif child.tag in ["chem_compound", "spec_note"]:
assert len(child) == 0, "<chem_compound> element not expected to have sub-elements."
if child.text is None:
child.text = ""
child.text = child.text.strip()
assert child.text != "", "<chem_compound> element must contain text."
compoundText = child.text
pos = 0
textOpen = False
while pos < len(compoundText):
if "a" <= compoundText[pos].lower() <= "z":
if not textOpen:
compoundText = compoundText[:pos] + r"\text{" + compoundText[pos:]
textOpen = True
pos += len(r"\text{") + 1
else:
pos += 1
else:
if textOpen:
compoundText = compoundText[:pos] + "}" + compoundText[pos:]
textOpen = False
pos += 2
else:
pos += 1
if textOpen:
compoundText += "}"
compoundXml = utils.xmlify(r"\(" + compoundText + r"\)")
compoundDom = etree.fromstring(compoundXml[compoundXml.find("<formula ") : compoundXml.rfind("\n</p>")])
utils.etree_replace_with_node_list(element, child, compoundDom)
childIndex += len(child)
else:
path = [child.tag]
node = child
while True:
node = node.getparent()
if node is None:
break
path.append(node.tag)
path.reverse()
namespaces = {"m": "http://www.w3.org/1998/Math/MathML"}
valid = [
"emphasis",
"para",
"figure/type",
"exercise/problem",
"exercise/title",
"exercise/shortcodes/entry/number",
"exercise/shortcodes/entry/shortcode",
"exercise/shortcodes/entry/url",
"exercise/shortcodes/entry/todo-content",
"list/item/label",
"table/tgroup/tbody/row/entry",
"table/tgroup/colspec",
"definition/term",
"definition/meaning",
"sup",
"sub",
"m:mn",
"m:mo",
"m:mi",
"m:msup",
"m:mrow",
"m:math",
"m:mtable",
"m:mtr",
"m:mtd",
"m:msub",
"m:mfrac",
"m:msqrt",
"m:mspace",
"m:mstyle",
"m:mfenced",
"m:mtext",
"m:mroot",
"m:mref",
"m:msubsup",
"m:munderover",
"m:munder",
"m:mover",
"m:mphantom",
"equation",
"link",
"quote",
"rule/title",
"rule/statement",
"rule/proof",
"section/title",
"section/shortcode",
"image/arguments",
"image/src",
"number/coeff",
"number/exp",
"number/base",
"nuclear_notation/mass_number",
"nuclear_notation/atomic_number",
"nuclear_notation/symbol",
"pspicture/code",
"pspicture/usepackage",
"tikzpicture/code",
"video/title",
"video/shortcode",
"video/url",
"video/width",
"video/height",
"worked_example/answer/workstep/title",
"worked_example/question",
"worked_example/title",
"activity/title",
"math_extension/title",
"math_extension/body",
"math_identity",
"document/content/title",
"document/content/content",
"simulation/title",
"simulation/shortcode",
"simulation/url",
"simulation/width",
"simulation/height",
"simulation/embed",
"presentation/title",
"presentation/url",
"presentation/shortcode",
"presentation/embed",
"box",
]
validSet = set([])
for entry in valid:
entry = entry.split("/")
for i in range(len(entry)):
if ":" in entry[i]:
entry[i] = entry[i].split(":")
assert len(entry[i]) == 2
entry[i] = "{%s}%s" % (namespaces[entry[i][0]], entry[i][1])
validSet.add(tuple(entry[: i + 1]))
valid = validSet
passed = False
for entry in valid:
if tuple(path[-len(entry) :]) == entry:
passed = True
break
if not passed:
path = "/".join(path)
for key, url in namespaces.iteritems():
path = path.replace("{%s}" % url, key + ":")
LOGGER.info("Unhandled element: " + path)
childIndex += 1
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:
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:
def traverse_dom_for_cnxml(self, element):
# traverse every element in tree, find matching environments, transform
for child in element:
self.traverse_dom_for_cnxml(child)
childIndex = 0
while childIndex < len(element):
child = element[childIndex]
if child.tag in ['video', 'simulation', 'presentation', 'box']:
child.tag = 'todo-' + child.tag
childIndex += 1
elif child.tag == 'image':
# <image> <arguments/> <src/> </image>
mediaNode = utils.create_node('media')
mediaNode.append(utils.create_node('image'))
mediaNode.attrib['alt'] = 'Image'
urlNode = child.find('src')
if urlNode is not None:
mediaNode[0].attrib['src'] = urlNode.text.strip()
else:
mediaNode[0].attrib['src'] = ''
mediaNode.tail = child.tail
element[childIndex] = mediaNode
childIndex += 1
elif child.tag == 'figure':
typeNode = child.find('type')
if typeNode is not None:
typ = typeNode.text.strip()
child.attrib['type'] = typ
typeNode.tag = 'label'
typeNode.text = {'figure': 'Figure', 'table': 'Table'}[typ]
childIndex += 1
elif child.tag == 'caption':
if (len(child) == 1) and (child[0].tag == 'para'):
utils.etree_replace_with_node_list(child, child[0], child[0])
childIndex += 1
elif child.tag == 'activity':
# <activity type="activity"><title/> <section><title/>...</section> </activity>
child.tag = 'example'
child.append(utils.create_node('label', text={
'g_experiment': 'General experiment',
'f_experiment': 'Formal experiment',
'i_experiment': 'Informal experiment',
'activity': 'Activity',
'Investigation': 'Investigation',
'groupdiscussion': 'Group discussion',
'casestudy': 'Case study',
'project': 'Project'}[child.attrib['type']]))
pos = 1
while pos < len(child):
if child[pos].tag == 'section':
sectionNode = child[pos]
assert sectionNode[0].tag == 'title'
del child[pos]
child.insert(pos, utils.create_node('para'))
child[pos].append(utils.create_node('emphasis', text=sectionNode[0].text.strip()))
child[pos][-1].attrib['effect'] = 'bold'
pos += 1
sectionChildren = sectionNode.getchildren()
for i in range(1, len(sectionChildren)):
child.insert(pos, sectionChildren[i])
pos += 1
else:
pos += 1
childIndex += 1
elif child.tag == 'worked_example':
# <worked_example> <title/> <question/> <answer> ... <workstep> <title/> ... </workstep> </answer> </worked_example>
child.tag = 'example'
newSubChildren = []
newSubChildren.append(utils.create_node('label', text="Worked example"))
pos = 1
for subChild in child:
if subChild.tag == 'title':
newSubChildren.append(subChild)
elif subChild.tag == 'question':
newSubChildren.append(subChild)
subChild.tag = 'section'
subChild.append(utils.create_node('title', text='Question'))
elif subChild.tag == 'answer':
newSubChildren.append(subChild)
subChild.tag = 'section'
subChild.append(utils.create_node('title', text='Answer'))
for x in subChild:
if x.tag == 'workstep':
x.tag = 'section'
childIndex += 1
elif child.tag == 'note':
child.insert(0, utils.create_node('label', text={
'warning': 'Warning',
'tip': 'Tip',
'note': 'Note',
'aside': 'Interesting Fact'}.get(child.attrib['type'], child.attrib['type'])))
childIndex += 1
elif child.tag == 'math_identity':
del element[childIndex] # Remove math_identity from DOM, still available as child
ruleNode = utils.create_node('rule')
ruleNode.attrib['type'] = 'Identity'
child.tag = 'statement'
ruleNode.append(child)
element.insert(childIndex, ruleNode)
childIndex += 1
elif child.tag == 'nuclear_notation':
namespace = 'http://www.w3.org/1998/Math/MathML'
mathNode = utils.create_node('math', namespace=namespace)
mathNode.append(utils.create_node('msubsup', namespace=namespace))
mathNode[-1].append(utils.create_node('mo', namespace=namespace, text=u'\u200b'))
mathNode[-1].append(utils.create_node('mn', namespace=namespace, text=child.find('atomic_number').text))
if child.find('mass_number') is not None:
massNumber = child.find('mass_number').text
else:
massNumber = u'\u200b'
mathNode[-1].append(utils.create_node('mn', namespace=namespace, text=massNumber))
mathNode.append(utils.create_node('mtext', namespace=namespace, text=child.find('symbol').text))
mathNode.tail = child.tail
element[childIndex] = mathNode
childIndex += 1
elif child.tag == 'math_extension':
child.tag = 'note'
titleNode = child.find('title')
if titleNode is not None:
titleNode.tag = 'label'
titleNode.text = u'Extension \u2014 ' + titleNode.text.strip()
else:
child.insert(0, utils.create_node('label', text='Extension'))
bodyNode = child.find('body')
utils.etree_replace_with_node_list(child, bodyNode, bodyNode)
childIndex += 1
elif child.tag == 'section':
# Check that it is not an activity section
if child.getparent().tag != 'activity':
shortCodeNode = child.find('shortcode')
if shortCodeNode is None:
if (child.attrib.get('type') not in ['subsubsection', 'subsubsubsection']) and (child.find('title').text.strip() != 'Chapter summary'):
print 'WARNING: no shortcode for section "%s"'%child.find('title').text.strip()
shortcode = 'SHORTCODE'
else:
shortcode = None
else:
if (child.attrib.get('type') in ['subsubsection', 'subsubsubsection']) or (child.find('title').text.strip() == 'Chapter summary'):
print 'WARNING: section "%s" should not have a shortcode'%child.find('title').text.strip()
shortcode = shortCodeNode.text.strip()
child.remove(shortCodeNode)
""" # Commented out so that shortcodes do not get displayed
if shortcode is not None:
titleNode = child.find('title')
if len(titleNode) == 0:
if titleNode.text is None:
titleNode.text = ''
titleNode.text += ' [' + shortcode + ']'
else:
if titleNode[-1].tail is None:
titleNode[-1].tail = ''
titleNode[-1].tail += ' [' + shortcode + ']'
"""
childIndex += 1
elif child.tag == 'latex':
if child.attrib.get('display', 'inline') == 'block':
delimiters = '[]'
else:
delimiters = '()'
if child.text is None:
child.text = ''
child.text = '\\' + delimiters[0] + child.text
if len(child) > 0:
if child[-1].text is None:
child[-1].tail = ''
child[-1].tail += '\\' + delimiters[1]
else:
child.text += '\\' + delimiters[1]
utils.etree_replace_with_node_list(element, child, child)
childIndex += len(child)
elif child.tag in ['chem_compound', 'spec_note']:
assert len(child) == 0, "<chem_compound> element not expected to have sub-elements."
if child.text is None:
child.text = ''
child.text = child.text.strip()
assert child.text != '', "<chem_compound> element must contain text."
compoundText = child.text
pos = 0
textOpen = False
while pos < len(compoundText):
if 'a' <= compoundText[pos].lower() <= 'z':
if not textOpen:
compoundText = compoundText[:pos] + r'\text{' + compoundText[pos:]
textOpen = True
pos += len(r'\text{') + 1
else:
pos += 1
else:
if textOpen:
compoundText = compoundText[:pos] + '}' + compoundText[pos:]
textOpen = False
pos += 2
else:
pos += 1
if textOpen:
compoundText += '}'
compoundXml = utils.xmlify(r'\(' + compoundText + r'\)')
compoundDom = etree.fromstring(compoundXml[compoundXml.find('<formula '):compoundXml.rfind('\n</p>')])
utils.etree_replace_with_node_list(element, child, compoundDom)
childIndex += len(child)
else:
path = [child.tag]
node = child
while True:
node = node.getparent()
if node is None:
break
path.append(node.tag)
path.reverse()
namespaces = {'m': 'http://www.w3.org/1998/Math/MathML'}
valid = [
'emphasis',
'para',
'figure/type',
'exercise/problem', 'exercise/title',
'exercise/shortcodes/entry/number', 'exercise/shortcodes/entry/shortcode', 'exercise/shortcodes/entry/url', 'exercise/shortcodes/entry/todo-content',
'list/item/label',
'table/tgroup/tbody/row/entry',
'table/tgroup/colspec',
'definition/term', 'definition/meaning',
'sup',
'sub',
'm:mn', 'm:mo', 'm:mi', 'm:msup', 'm:mrow', 'm:math', 'm:mtable', 'm:mtr', 'm:mtd', 'm:msub', 'm:mfrac', 'm:msqrt', 'm:mspace', 'm:mstyle', 'm:mfenced', 'm:mtext', 'm:mroot', 'm:mref', 'm:msubsup', 'm:munderover', 'm:munder', 'm:mover', 'm:mphantom',
'equation',
'link',
'quote',
'rule/title', 'rule/statement', 'rule/proof',
'section/title',
'section/shortcode',
'image/arguments',
'image/src',
'number/coeff', 'number/exp', 'number/base',
'nuclear_notation/mass_number', 'nuclear_notation/atomic_number', 'nuclear_notation/symbol',
'pspicture/code', 'pspicture/usepackage',
'tikzpicture/code',
'video/title', 'video/shortcode', 'video/url', 'video/width', 'video/height',
'worked_example/answer/workstep/title', 'worked_example/question', 'worked_example/title',
'activity/title',
'math_extension/title',
'math_extension/body',
'math_identity',
'document/content/title',
'document/content/content',
'simulation/title', 'simulation/shortcode', 'simulation/url', 'simulation/width', 'simulation/height', 'simulation/embed',
'presentation/title', 'presentation/url', 'presentation/shortcode', 'presentation/embed',
'box',
]
validSet = set([])
for entry in valid:
entry = entry.split('/')
for i in range(len(entry)):
if ':' in entry[i]:
entry[i] = entry[i].split(':')
assert len(entry[i]) == 2
entry[i] = '{%s}%s'%(namespaces[entry[i][0]], entry[i][1])
validSet.add(tuple(entry[:i+1]))
valid = validSet
passed = False
for entry in valid:
if tuple(path[-len(entry):]) == entry:
passed = True
break
if not passed:
path = '/'.join(path)
for key, url in namespaces.iteritems():
path = path.replace('{%s}'%url, key+':')
LOGGER.info('Unhandled element: ' + path)
childIndex += 1
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:
