def prefilter_PQ(self,line,continuation):
"""Alternate prefilter for input of PhysicalQuantityInteractive objects.
This assumes that the function PhysicalQuantityInteractive() has been
imported."""
from re import match
from IPython.iplib import InteractiveShell
# This regexp is what does the real work
unit_split = match(r'\s*(\w+)\s*=\s*(-?\d*\.?\d*[eE]?-?\d*)\s+([a-zA-Z].*)',
line)
# If special input was ecnountered, process it:
if unit_split:
var,val,units = unit_split.groups()
if var and val and units:
units = units.replace('^','**')
# Now a valid line needs to be constructed for IPython to process:
line = var +" = PhysicalQuantityInteractive(" + val + ", '" + \
units + "')"
#print 'New line:',line # dbg
# In the end, always call the default IPython _prefilter() function. Note
# that self must be passed explicitly, b/c we're calling the unbound class
# method (since this method will overwrite the instance prefilter())
return InteractiveShell._prefilter(self,line,continuation)
def prefilter_PQ(self, line, continuation):
"""Alternate prefilter for input of PhysicalQuantityInteractive objects.
This assumes that the function PhysicalQuantityInteractive() has been
imported."""
from re import match
from IPython.iplib import InteractiveShell
# This regexp is what does the real work
unit_split = match(
r'\s*(\w+)\s*=\s*(-?\d*\.?\d*[eE]?-?\d*)\s+([a-zA-Z].*)', line)
# If special input was ecnountered, process it:
if unit_split:
var, val, units = unit_split.groups()
if var and val and units:
units = units.replace('^', '**')
# Now a valid line needs to be constructed for IPython to process:
line = var +" = PhysicalQuantityInteractive(" + val + ", '" + \
units + "')"
#print 'New line:',line # dbg
# In the end, always call the default IPython _prefilter() function. Note
# that self must be passed explicitly, b/c we're calling the unbound class
# method (since this method will overwrite the instance prefilter())
return InteractiveShell._prefilter(self, line, continuation)
def prefilter_paste(self, line, continuation):
"""Alternate prefilter for input of pasted code from an interpreter.
"""
from re import match
from IPython.iplib import InteractiveShell
if match(r'^>>> |^\.\.\. ', line):
# In the end, always call the default IPython _prefilter() function.
# Note that self must be passed explicitly, b/c we're calling the
# unbound class method (since this method will overwrite the instance
# prefilter())
return InteractiveShell._prefilter(self, line[4:], continuation)
elif line.strip() == '...':
return InteractiveShell._prefilter(self, '', continuation)
else:
return InteractiveShell._prefilter(self, line, continuation)
def sage_prefilter(self, block, continuation):
"""
Sage's prefilter for input. Given a string block (usually a
line), return the preparsed version of it.
INPUT:
- block -- string (usually a single line, but not always)
- continuation -- whether or not this line is a continuation.
"""
try:
block2 = ''
first = True
B = block.split('\n')
for i in range(len(B)):
L = B[i]
M = do_prefilter_paste(L, continuation or (not first))
first = False
# The L[:len(L)-len(L.lstrip())] business here preserves
# the whitespace at the beginning of L.
if block2 != '':
block2 += '\n'
lstrip = L.lstrip()
if lstrip[:5] == 'sage:' or lstrip[:3] == '>>>' or i==0:
block2 += M
else:
block2 += L[:len(L)-len(lstrip)] + M
except None:
print "WARNING: An error occurred in the Sage parser while"
print "parsing the following block:"
print block
print "Please report this as a bug (include the output of typing '%hist')."
block2 = block
return InteractiveShell._prefilter(self, block2, continuation)
def sage_prefilter(self, block, continuation):
"""
Sage's prefilter for input. Given a string block (usually a
line), return the preparsed version of it.
INPUT:
- block -- string (usually a single line, but not always)
- continuation -- whether or not this line is a continuation.
"""
try:
block2 = ''
first = True
B = block.split('\n')
for i in range(len(B)):
L = B[i]
M = do_prefilter_paste(L, continuation or (not first))
first = False
# The L[:len(L)-len(L.lstrip())] business here preserves
# the whitespace at the beginning of L.
if block2 != '':
block2 += '\n'
lstrip = L.lstrip()
if lstrip[:5] == 'sage:' or lstrip[:3] == '>>>' or i == 0:
block2 += M
else:
block2 += L[:len(L) - len(lstrip)] + M
except None:
print "WARNING: An error occurred in the Sage parser while"
print "parsing the following block:"
print block
print "Please report this as a bug (include the output of typing '%hist')."
block2 = block
return InteractiveShell._prefilter(self, block2, continuation)