def __init__(self,
data,
title=_notitle,
context={},
copy=1,
replacedollar=1,
columncallback="__column__",
**columns):
# build a nice title
if title is _notitle:
items = list(columns.items())
items.sort(
) # we want sorted items (otherwise they would be unpredictable scrambled)
self.title = "%s: %s" % (text.escapestring(
data.title or "unkown source"), ", ".join([
"%s=%s" %
(text.escapestring(key), text.escapestring(str(value)))
for key, value in items
]))
else:
self.title = title
self.orgdata = data
self.defaultstyles = self.orgdata.defaultstyles
# analyse the **columns argument
self.columns = {}
for columnname, value in list(columns.items()):
# search in the columns dictionary
try:
self.columns[columnname] = self.orgdata.columns[value]
except KeyError:
# search in the columndata list
try:
self.columns[columnname] = self.orgdata.columndata[value]
except (AttributeError, TypeError):
# value was not an valid column identifier
# i.e. take it as a mathematical expression
if replacedollar:
m = _columnintref.search(value)
while m:
value = "%s%s(%s)%s" % (value[:m.start(
)], columncallback, m.groups()[0], value[m.end():])
m = _columnintref.search(value)
value = value.replace("$", columncallback)
expression = compile(value.strip(), __file__, "eval")
context = context.copy()
context[columncallback] = self.columncallback
if self.orgdata.columns:
key, columndata = list(self.orgdata.columns.items())[0]
count = len(columndata)
elif self.orgdata.columndata:
count = len(self.orgdata.columndata[0])
else:
count = 0
newdata = []
for i in range(count):
self.columncallbackcount = i
for key, values in list(self.orgdata.columns.items()):
context[key] = values[i]
try:
newdata.append(
eval(expression, _mathglobals, context))
except (ArithmeticError, ValueError):
newdata.append(None)
self.columns[columnname] = newdata
if copy:
# copy other, non-conflicting column names
for columnname, columndata in list(self.orgdata.columns.items()):
if columnname not in self.columns:
self.columns[columnname] = columndata
self.columnnames = list(self.columns.keys())
def __init__(
self, data, title=_notitle, context={}, copy=1, replacedollar=1, columncallback="__column__", **columns
):
# build a nice title
if title is _notitle:
items = columns.items()
items.sort() # we want sorted items (otherwise they would be unpredictable scrambled)
self.title = "%s: %s" % (
text.escapestring(data.title or "unkown source"),
", ".join(["%s=%s" % (text.escapestring(key), text.escapestring(str(value))) for key, value in items]),
)
else:
self.title = title
self.orgdata = data
self.defaultstyles = self.orgdata.defaultstyles
# analyse the **columns argument
self.columns = {}
for columnname, value in columns.items():
# search in the columns dictionary
try:
self.columns[columnname] = self.orgdata.columns[value]
except KeyError:
# search in the columndata list
try:
self.columns[columnname] = self.orgdata.columndata[value]
except (AttributeError, TypeError):
# value was not an valid column identifier
# i.e. take it as a mathematical expression
if replacedollar:
m = _columnintref.search(value)
while m:
value = "%s%s(%s)%s" % (value[: m.start()], columncallback, m.groups()[0], value[m.end() :])
m = _columnintref.search(value)
value = value.replace("$", columncallback)
expression = compile(value.strip(), __file__, "eval")
context = context.copy()
context[columncallback] = self.columncallback
if self.orgdata.columns:
key, columndata = self.orgdata.columns.items()[0]
count = len(columndata)
elif self.orgdata.columndata:
count = len(self.orgdata.columndata[0])
else:
count = 0
newdata = []
for i in xrange(count):
self.columncallbackcount = i
for key, values in self.orgdata.columns.items():
context[key] = values[i]
try:
newdata.append(eval(expression, _mathglobals, context))
except (ArithmeticError, ValueError):
newdata.append(None)
self.columns[columnname] = newdata
if copy:
# copy other, non-conflicting column names
for columnname, columndata in self.orgdata.columns.items():
if not self.columns.has_key(columnname):
self.columns[columnname] = columndata
self.columnnames = self.columns.keys()