def as_html_handle_data_algebra(mathobj):
"""Add some logic to allow the client to provide the math object in several ways:
- If it is a mathobject, it will be turnied into LaTeX and wrapped in the mathjax escape token.
- If it is a container of mathobjects, then each one will be turned into LaTeX and presented on
its own line.
- If it is not a mathobject then the str function will be invoked.
:param mathobj: The data algebra construct to be rendered on HTML
:return: The HTML snippet of the mathobject.
"""
if isinstance(mathobj, _mo.MathObject):
# print this one math object
return "$$" + _html.escape(_math_object_to_latex(mathobj)) + "$$"
elif isinstance(mathobj, _collections.Iterable):
temp = ""
for elem in mathobj:
if isinstance(elem, _mo.MathObject):
# latex
temp += "$$\(\\require{color}\)\(\\require{xcolor}\)" + \
_html.escape(_math_object_to_latex(elem)) + "$$ <br //>"
else:
# str
temp += _html.escape(str(elem)) + "<br //>"
return temp
else:
# print this one non-math object using str(mathobjects)
return _html.escape(str(mathobj))
def create_simple_web_page(mathobj: _mo.MathObject) -> str:
"""Convert a math object into an HTML file. This does not offer much client specification or
HTML injection. Create a basic webpage for one mathobject.
:param mathobj: The mathobject to create a webpage for.
:return: The web page (HTML) for ``mathobj``.
"""
web_template = """\
<html>
<head>
<script
src='https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML'>
</script>
<script type="text/javascript">
//<![CDATA[ //]]>
</script>
<style>
body {{background-color: #F8F8FF}}
#latexArea, #dataAlgebraArea{{
width: 1000px;
height: 200px;
border: 1px solid black;
padding: 5px;
overflow: scroll;
background-color: white;
resize: both;
}}
</style>
</head>
<body>
<h1>MathJax is Easy!</h1>
<h2>Input:</h2>
<div id="dataAlgebraArea">{data_algebra_in!s}</div>
<h2>Output:</h2>
<div id="latexArea">$$\(\\require{color}\){latex_out}$$</div>
</body></html>
"""
web_out = web_template.format(data_algebra_in=mathobj, latex_out=_math_object_to_latex(mathobj))
print(web_out)
return web_out
file = StringIO(sales_csv)
sales_multiclan = import_csv(file, has_dup_rows=True) # note the use of flag to return a multiclan
print(sales_multiclan)
# lets see how our cashiers are doing
cashier_diagonal = _mo.Multiset({_mo.Set(_mo.Couplet('cashier', 'cashier')): 1})
cashier_sales = _multiclans.compose(sales_multiclan, cashier_diagonal)
print("To find out how many sales each cashier has had, we can do the following:")
print(str("sales_multiclan") + ' COMPOSE ' + str(cashier_diagonal))
print('=> EVALUATES TO ' + str(cashier_sales) + "\n")
# lets see what products we sold for the day
product_diagonal = _mo.Multiset({_mo.Set(_mo.Couplet('product', 'product')): 1})
product_sales = _multiclans.compose(sales_multiclan, product_diagonal)
print("To find out how many products we sold, we can do the following:")
print(str("sales_multiclan") + ' COMPOSE ' + str(product_diagonal))
print('=> EVALUATES TO ' + str(product_sales) + "\n")
# Print some of these new math objects in LaTeX.
print(_math_object_to_latex(simple_union))
print(_math_object_to_latex(sales_multiclan))
print(_math_object_to_latex(product_sales))
# Export a multiclan
print("\nConverting the multiclan back to a csv file is easy.")
sales_csv_out = StringIO()
export_csv(sales_multiclan, sales_csv_out)
csv_str = sales_csv_out.getvalue()
print(csv_str)
# lets see how our cashiers are doing
cashier_diagonal = _mo.Multiset(
{_mo.Set(_mo.Couplet('cashier', 'cashier')): 1})
cashier_sales = _multiclans.compose(sales_multiclan, cashier_diagonal)
print(
"To find out how many sales each cashier has had, we can do the following:"
)
print(str("sales_multiclan") + ' COMPOSE ' + str(cashier_diagonal))
print('=> EVALUATES TO ' + str(cashier_sales) + "\n")
# lets see what products we sold for the day
product_diagonal = _mo.Multiset(
{_mo.Set(_mo.Couplet('product', 'product')): 1})
product_sales = _multiclans.compose(sales_multiclan, product_diagonal)
print("To find out how many products we sold, we can do the following:")
print(str("sales_multiclan") + ' COMPOSE ' + str(product_diagonal))
print('=> EVALUATES TO ' + str(product_sales) + "\n")
# Print some of these new math objects in LaTeX.
print(_math_object_to_latex(simple_union))
print(_math_object_to_latex(sales_multiclan))
print(_math_object_to_latex(product_sales))
# Export a multiclan
print("\nConverting the multiclan back to a csv file is easy.")
sales_csv_out = StringIO()
export_csv(sales_multiclan, sales_csv_out)
csv_str = sales_csv_out.getvalue()
print(csv_str)
