539 lines
19 KiB
Python
539 lines
19 KiB
Python
|
"""Prettyprinter by Jurjen Bos.
|
||
|
|
(I hate spammers: mail me at pietjepuk314 at the reverse of ku.oc.oohay).
|
||
|
|
All objects have a method that create a "stringPict",
|
||
|
|
that can be used in the str method for pretty printing.
|
||
|
|
|
||
|
|
Updates by Jason Gedge (email <my last name> at cs mun ca)
|
||
|
|
- terminal_string() method
|
||
|
|
- minor fixes and changes (mostly to prettyForm)
|
||
|
|
|
||
|
|
TODO:
|
||
|
|
- Allow left/center/right alignment options for above/below and
|
||
|
|
top/center/bottom alignment options for left/right
|
||
|
|
"""
|
||
|
|
|
||
|
|
from .pretty_symbology import hobj, vobj, xsym, xobj, pretty_use_unicode, line_width
|
||
|
|
from sympy.utilities.exceptions import sympy_deprecation_warning
|
||
|
|
|
||
|
|
class stringPict:
|
||
|
|
"""An ASCII picture.
|
||
|
|
The pictures are represented as a list of equal length strings.
|
||
|
|
"""
|
||
|
|
#special value for stringPict.below
|
||
|
|
LINE = 'line'
|
||
|
|
|
||
|
|
def __init__(self, s, baseline=0):
|
||
|
|
"""Initialize from string.
|
||
|
|
Multiline strings are centered.
|
||
|
|
"""
|
||
|
|
self.s = s
|
||
|
|
#picture is a string that just can be printed
|
||
|
|
self.picture = stringPict.equalLengths(s.splitlines())
|
||
|
|
#baseline is the line number of the "base line"
|
||
|
|
self.baseline = baseline
|
||
|
|
self.binding = None
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def equalLengths(lines):
|
||
|
|
# empty lines
|
||
|
|
if not lines:
|
||
|
|
return ['']
|
||
|
|
|
||
|
|
width = max(line_width(line) for line in lines)
|
||
|
|
return [line.center(width) for line in lines]
|
||
|
|
|
||
|
|
def height(self):
|
||
|
|
"""The height of the picture in characters."""
|
||
|
|
return len(self.picture)
|
||
|
|
|
||
|
|
def width(self):
|
||
|
|
"""The width of the picture in characters."""
|
||
|
|
return line_width(self.picture[0])
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def next(*args):
|
||
|
|
"""Put a string of stringPicts next to each other.
|
||
|
|
Returns string, baseline arguments for stringPict.
|
||
|
|
"""
|
||
|
|
#convert everything to stringPicts
|
||
|
|
objects = []
|
||
|
|
for arg in args:
|
||
|
|
if isinstance(arg, str):
|
||
|
|
arg = stringPict(arg)
|
||
|
|
objects.append(arg)
|
||
|
|
|
||
|
|
#make a list of pictures, with equal height and baseline
|
||
|
|
newBaseline = max(obj.baseline for obj in objects)
|
||
|
|
newHeightBelowBaseline = max(
|
||
|
|
obj.height() - obj.baseline
|
||
|
|
for obj in objects)
|
||
|
|
newHeight = newBaseline + newHeightBelowBaseline
|
||
|
|
|
||
|
|
pictures = []
|
||
|
|
for obj in objects:
|
||
|
|
oneEmptyLine = [' '*obj.width()]
|
||
|
|
basePadding = newBaseline - obj.baseline
|
||
|
|
totalPadding = newHeight - obj.height()
|
||
|
|
pictures.append(
|
||
|
|
oneEmptyLine * basePadding +
|
||
|
|
obj.picture +
|
||
|
|
oneEmptyLine * (totalPadding - basePadding))
|
||
|
|
|
||
|
|
result = [''.join(lines) for lines in zip(*pictures)]
|
||
|
|
return '\n'.join(result), newBaseline
|
||
|
|
|
||
|
|
def right(self, *args):
|
||
|
|
r"""Put pictures next to this one.
|
||
|
|
Returns string, baseline arguments for stringPict.
|
||
|
|
(Multiline) strings are allowed, and are given a baseline of 0.
|
||
|
|
|
||
|
|
Examples
|
||
|
|
========
|
||
|
|
|
||
|
|
>>> from sympy.printing.pretty.stringpict import stringPict
|
||
|
|
>>> print(stringPict("10").right(" + ",stringPict("1\r-\r2",1))[0])
|
||
|
|
1
|
||
|
|
10 + -
|
||
|
|
2
|
||
|
|
|
||
|
|
"""
|
||
|
|
return stringPict.next(self, *args)
|
||
|
|
|
||
|
|
def left(self, *args):
|
||
|
|
"""Put pictures (left to right) at left.
|
||
|
|
Returns string, baseline arguments for stringPict.
|
||
|
|
"""
|
||
|
|
return stringPict.next(*(args + (self,)))
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def stack(*args):
|
||
|
|
"""Put pictures on top of each other,
|
||
|
|
from top to bottom.
|
||
|
|
Returns string, baseline arguments for stringPict.
|
||
|
|
The baseline is the baseline of the second picture.
|
||
|
|
Everything is centered.
|
||
|
|
Baseline is the baseline of the second picture.
|
||
|
|
Strings are allowed.
|
||
|
|
The special value stringPict.LINE is a row of '-' extended to the width.
|
||
|
|
"""
|
||
|
|
#convert everything to stringPicts; keep LINE
|
||
|
|
objects = []
|
||
|
|
for arg in args:
|
||
|
|
if arg is not stringPict.LINE and isinstance(arg, str):
|
||
|
|
arg = stringPict(arg)
|
||
|
|
objects.append(arg)
|
||
|
|
|
||
|
|
#compute new width
|
||
|
|
newWidth = max(
|
||
|
|
obj.width()
|
||
|
|
for obj in objects
|
||
|
|
if obj is not stringPict.LINE)
|
||
|
|
|
||
|
|
lineObj = stringPict(hobj('-', newWidth))
|
||
|
|
|
||
|
|
#replace LINE with proper lines
|
||
|
|
for i, obj in enumerate(objects):
|
||
|
|
if obj is stringPict.LINE:
|
||
|
|
objects[i] = lineObj
|
||
|
|
|
||
|
|
#stack the pictures, and center the result
|
||
|
|
newPicture = []
|
||
|
|
for obj in objects:
|
||
|
|
newPicture.extend(obj.picture)
|
||
|
|
newPicture = [line.center(newWidth) for line in newPicture]
|
||
|
|
newBaseline = objects[0].height() + objects[1].baseline
|
||
|
|
return '\n'.join(newPicture), newBaseline
|
||
|
|
|
||
|
|
def below(self, *args):
|
||
|
|
"""Put pictures under this picture.
|
||
|
|
Returns string, baseline arguments for stringPict.
|
||
|
|
Baseline is baseline of top picture
|
||
|
|
|
||
|
|
Examples
|
||
|
|
========
|
||
|
|
|
||
|
|
>>> from sympy.printing.pretty.stringpict import stringPict
|
||
|
|
>>> print(stringPict("x+3").below(
|
||
|
|
... stringPict.LINE, '3')[0]) #doctest: +NORMALIZE_WHITESPACE
|
||
|
|
x+3
|
||
|
|
---
|
||
|
|
3
|
||
|
|
|
||
|
|
"""
|
||
|
|
s, baseline = stringPict.stack(self, *args)
|
||
|
|
return s, self.baseline
|
||
|
|
|
||
|
|
def above(self, *args):
|
||
|
|
"""Put pictures above this picture.
|
||
|
|
Returns string, baseline arguments for stringPict.
|
||
|
|
Baseline is baseline of bottom picture.
|
||
|
|
"""
|
||
|
|
string, baseline = stringPict.stack(*(args + (self,)))
|
||
|
|
baseline = len(string.splitlines()) - self.height() + self.baseline
|
||
|
|
return string, baseline
|
||
|
|
|
||
|
|
def parens(self, left='(', right=')', ifascii_nougly=False):
|
||
|
|
"""Put parentheses around self.
|
||
|
|
Returns string, baseline arguments for stringPict.
|
||
|
|
|
||
|
|
left or right can be None or empty string which means 'no paren from
|
||
|
|
that side'
|
||
|
|
"""
|
||
|
|
h = self.height()
|
||
|
|
b = self.baseline
|
||
|
|
|
||
|
|
# XXX this is a hack -- ascii parens are ugly!
|
||
|
|
if ifascii_nougly and not pretty_use_unicode():
|
||
|
|
h = 1
|
||
|
|
b = 0
|
||
|
|
|
||
|
|
res = self
|
||
|
|
|
||
|
|
if left:
|
||
|
|
lparen = stringPict(vobj(left, h), baseline=b)
|
||
|
|
res = stringPict(*lparen.right(self))
|
||
|
|
if right:
|
||
|
|
rparen = stringPict(vobj(right, h), baseline=b)
|
||
|
|
res = stringPict(*res.right(rparen))
|
||
|
|
|
||
|
|
return ('\n'.join(res.picture), res.baseline)
|
||
|
|
|
||
|
|
def leftslash(self):
|
||
|
|
"""Precede object by a slash of the proper size.
|
||
|
|
"""
|
||
|
|
# XXX not used anywhere ?
|
||
|
|
height = max(
|
||
|
|
self.baseline,
|
||
|
|
self.height() - 1 - self.baseline)*2 + 1
|
||
|
|
slash = '\n'.join(
|
||
|
|
' '*(height - i - 1) + xobj('/', 1) + ' '*i
|
||
|
|
for i in range(height)
|
||
|
|
)
|
||
|
|
return self.left(stringPict(slash, height//2))
|
||
|
|
|
||
|
|
def root(self, n=None):
|
||
|
|
"""Produce a nice root symbol.
|
||
|
|
Produces ugly results for big n inserts.
|
||
|
|
"""
|
||
|
|
# XXX not used anywhere
|
||
|
|
# XXX duplicate of root drawing in pretty.py
|
||
|
|
#put line over expression
|
||
|
|
result = self.above('_'*self.width())
|
||
|
|
#construct right half of root symbol
|
||
|
|
height = self.height()
|
||
|
|
slash = '\n'.join(
|
||
|
|
' ' * (height - i - 1) + '/' + ' ' * i
|
||
|
|
for i in range(height)
|
||
|
|
)
|
||
|
|
slash = stringPict(slash, height - 1)
|
||
|
|
#left half of root symbol
|
||
|
|
if height > 2:
|
||
|
|
downline = stringPict('\\ \n \\', 1)
|
||
|
|
else:
|
||
|
|
downline = stringPict('\\')
|
||
|
|
#put n on top, as low as possible
|
||
|
|
if n is not None and n.width() > downline.width():
|
||
|
|
downline = downline.left(' '*(n.width() - downline.width()))
|
||
|
|
downline = downline.above(n)
|
||
|
|
#build root symbol
|
||
|
|
root = downline.right(slash)
|
||
|
|
#glue it on at the proper height
|
||
|
|
#normally, the root symbel is as high as self
|
||
|
|
#which is one less than result
|
||
|
|
#this moves the root symbol one down
|
||
|
|
#if the root became higher, the baseline has to grow too
|
||
|
|
root.baseline = result.baseline - result.height() + root.height()
|
||
|
|
return result.left(root)
|
||
|
|
|
||
|
|
def render(self, * args, **kwargs):
|
||
|
|
"""Return the string form of self.
|
||
|
|
|
||
|
|
Unless the argument line_break is set to False, it will
|
||
|
|
break the expression in a form that can be printed
|
||
|
|
on the terminal without being broken up.
|
||
|
|
"""
|
||
|
|
if kwargs["wrap_line"] is False:
|
||
|
|
return "\n".join(self.picture)
|
||
|
|
|
||
|
|
if kwargs["num_columns"] is not None:
|
||
|
|
# Read the argument num_columns if it is not None
|
||
|
|
ncols = kwargs["num_columns"]
|
||
|
|
else:
|
||
|
|
# Attempt to get a terminal width
|
||
|
|
ncols = self.terminal_width()
|
||
|
|
|
||
|
|
ncols -= 2
|
||
|
|
if ncols <= 0:
|
||
|
|
ncols = 78
|
||
|
|
|
||
|
|
# If smaller than the terminal width, no need to correct
|
||
|
|
if self.width() <= ncols:
|
||
|
|
return type(self.picture[0])(self)
|
||
|
|
|
||
|
|
# for one-line pictures we don't need v-spacers. on the other hand, for
|
||
|
|
# multiline-pictures, we need v-spacers between blocks, compare:
|
||
|
|
#
|
||
|
|
# 2 2 3 | a*c*e + a*c*f + a*d | a*c*e + a*c*f + a*d | 3.14159265358979323
|
||
|
|
# 6*x *y + 4*x*y + | | *e + a*d*f + b*c*e | 84626433832795
|
||
|
|
# | *e + a*d*f + b*c*e | + b*c*f + b*d*e + b |
|
||
|
|
# 3 4 4 | | *d*f |
|
||
|
|
# 4*y*x + x + y | + b*c*f + b*d*e + b | |
|
||
|
|
# | | |
|
||
|
|
# | *d*f
|
||
|
|
|
||
|
|
i = 0
|
||
|
|
svals = []
|
||
|
|
do_vspacers = (self.height() > 1)
|
||
|
|
while i < self.width():
|
||
|
|
svals.extend([ sval[i:i + ncols] for sval in self.picture ])
|
||
|
|
if do_vspacers:
|
||
|
|
svals.append("") # a vertical spacer
|
||
|
|
i += ncols
|
||
|
|
|
||
|
|
if svals[-1] == '':
|
||
|
|
del svals[-1] # Get rid of the last spacer
|
||
|
|
|
||
|
|
return "\n".join(svals)
|
||
|
|
|
||
|
|
def terminal_width(self):
|
||
|
|
"""Return the terminal width if possible, otherwise return 0.
|
||
|
|
"""
|
||
|
|
ncols = 0
|
||
|
|
try:
|
||
|
|
import curses
|
||
|
|
import io
|
||
|
|
try:
|
||
|
|
curses.setupterm()
|
||
|
|
ncols = curses.tigetnum('cols')
|
||
|
|
except AttributeError:
|
||
|
|
# windows curses doesn't implement setupterm or tigetnum
|
||
|
|
# code below from
|
||
|
|
# https://code.activestate.com/recipes/440694/
|
||
|
|
from ctypes import windll, create_string_buffer
|
||
|
|
# stdin handle is -10
|
||
|
|
# stdout handle is -11
|
||
|
|
# stderr handle is -12
|
||
|
|
h = windll.kernel32.GetStdHandle(-12)
|
||
|
|
csbi = create_string_buffer(22)
|
||
|
|
res = windll.kernel32.GetConsoleScreenBufferInfo(h, csbi)
|
||
|
|
if res:
|
||
|
|
import struct
|
||
|
|
(bufx, bufy, curx, cury, wattr,
|
||
|
|
left, top, right, bottom, maxx, maxy) = struct.unpack("hhhhHhhhhhh", csbi.raw)
|
||
|
|
ncols = right - left + 1
|
||
|
|
except curses.error:
|
||
|
|
pass
|
||
|
|
except io.UnsupportedOperation:
|
||
|
|
pass
|
||
|
|
except (ImportError, TypeError):
|
||
|
|
pass
|
||
|
|
return ncols
|
||
|
|
|
||
|
|
def __eq__(self, o):
|
||
|
|
if isinstance(o, str):
|
||
|
|
return '\n'.join(self.picture) == o
|
||
|
|
elif isinstance(o, stringPict):
|
||
|
|
return o.picture == self.picture
|
||
|
|
return False
|
||
|
|
|
||
|
|
def __hash__(self):
|
||
|
|
return super().__hash__()
|
||
|
|
|
||
|
|
def __str__(self):
|
||
|
|
return '\n'.join(self.picture)
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return "stringPict(%r,%d)" % ('\n'.join(self.picture), self.baseline)
|
||
|
|
|
||
|
|
def __getitem__(self, index):
|
||
|
|
return self.picture[index]
|
||
|
|
|
||
|
|
def __len__(self):
|
||
|
|
return len(self.s)
|
||
|
|
|
||
|
|
|
||
|
|
class prettyForm(stringPict):
|
||
|
|
"""
|
||
|
|
Extension of the stringPict class that knows about basic math applications,
|
||
|
|
optimizing double minus signs.
|
||
|
|
|
||
|
|
"Binding" is interpreted as follows::
|
||
|
|
|
||
|
|
ATOM this is an atom: never needs to be parenthesized
|
||
|
|
FUNC this is a function application: parenthesize if added (?)
|
||
|
|
DIV this is a division: make wider division if divided
|
||
|
|
POW this is a power: only parenthesize if exponent
|
||
|
|
MUL this is a multiplication: parenthesize if powered
|
||
|
|
ADD this is an addition: parenthesize if multiplied or powered
|
||
|
|
NEG this is a negative number: optimize if added, parenthesize if
|
||
|
|
multiplied or powered
|
||
|
|
OPEN this is an open object: parenthesize if added, multiplied, or
|
||
|
|
powered (example: Piecewise)
|
||
|
|
"""
|
||
|
|
ATOM, FUNC, DIV, POW, MUL, ADD, NEG, OPEN = range(8)
|
||
|
|
|
||
|
|
def __init__(self, s, baseline=0, binding=0, unicode=None):
|
||
|
|
"""Initialize from stringPict and binding power."""
|
||
|
|
stringPict.__init__(self, s, baseline)
|
||
|
|
self.binding = binding
|
||
|
|
if unicode is not None:
|
||
|
|
sympy_deprecation_warning(
|
||
|
|
"""
|
||
|
|
The unicode argument to prettyForm is deprecated. Only the s
|
||
|
|
argument (the first positional argument) should be passed.
|
||
|
|
""",
|
||
|
|
deprecated_since_version="1.7",
|
||
|
|
active_deprecations_target="deprecated-pretty-printing-functions")
|
||
|
|
self._unicode = unicode or s
|
||
|
|
|
||
|
|
@property
|
||
|
|
def unicode(self):
|
||
|
|
sympy_deprecation_warning(
|
||
|
|
"""
|
||
|
|
The prettyForm.unicode attribute is deprecated. Use the
|
||
|
|
prettyForm.s attribute instead.
|
||
|
|
""",
|
||
|
|
deprecated_since_version="1.7",
|
||
|
|
active_deprecations_target="deprecated-pretty-printing-functions")
|
||
|
|
return self._unicode
|
||
|
|
|
||
|
|
# Note: code to handle subtraction is in _print_Add
|
||
|
|
|
||
|
|
def __add__(self, *others):
|
||
|
|
"""Make a pretty addition.
|
||
|
|
Addition of negative numbers is simplified.
|
||
|
|
"""
|
||
|
|
arg = self
|
||
|
|
if arg.binding > prettyForm.NEG:
|
||
|
|
arg = stringPict(*arg.parens())
|
||
|
|
result = [arg]
|
||
|
|
for arg in others:
|
||
|
|
#add parentheses for weak binders
|
||
|
|
if arg.binding > prettyForm.NEG:
|
||
|
|
arg = stringPict(*arg.parens())
|
||
|
|
#use existing minus sign if available
|
||
|
|
if arg.binding != prettyForm.NEG:
|
||
|
|
result.append(' + ')
|
||
|
|
result.append(arg)
|
||
|
|
return prettyForm(binding=prettyForm.ADD, *stringPict.next(*result))
|
||
|
|
|
||
|
|
def __truediv__(self, den, slashed=False):
|
||
|
|
"""Make a pretty division; stacked or slashed.
|
||
|
|
"""
|
||
|
|
if slashed:
|
||
|
|
raise NotImplementedError("Can't do slashed fraction yet")
|
||
|
|
num = self
|
||
|
|
if num.binding == prettyForm.DIV:
|
||
|
|
num = stringPict(*num.parens())
|
||
|
|
if den.binding == prettyForm.DIV:
|
||
|
|
den = stringPict(*den.parens())
|
||
|
|
|
||
|
|
if num.binding==prettyForm.NEG:
|
||
|
|
num = num.right(" ")[0]
|
||
|
|
|
||
|
|
return prettyForm(binding=prettyForm.DIV, *stringPict.stack(
|
||
|
|
num,
|
||
|
|
stringPict.LINE,
|
||
|
|
den))
|
||
|
|
|
||
|
|
def __mul__(self, *others):
|
||
|
|
"""Make a pretty multiplication.
|
||
|
|
Parentheses are needed around +, - and neg.
|
||
|
|
"""
|
||
|
|
quantity = {
|
||
|
|
'degree': "\N{DEGREE SIGN}"
|
||
|
|
}
|
||
|
|
|
||
|
|
if len(others) == 0:
|
||
|
|
return self # We aren't actually multiplying... So nothing to do here.
|
||
|
|
|
||
|
|
# add parens on args that need them
|
||
|
|
arg = self
|
||
|
|
if arg.binding > prettyForm.MUL and arg.binding != prettyForm.NEG:
|
||
|
|
arg = stringPict(*arg.parens())
|
||
|
|
result = [arg]
|
||
|
|
for arg in others:
|
||
|
|
if arg.picture[0] not in quantity.values():
|
||
|
|
result.append(xsym('*'))
|
||
|
|
#add parentheses for weak binders
|
||
|
|
if arg.binding > prettyForm.MUL and arg.binding != prettyForm.NEG:
|
||
|
|
arg = stringPict(*arg.parens())
|
||
|
|
result.append(arg)
|
||
|
|
|
||
|
|
len_res = len(result)
|
||
|
|
for i in range(len_res):
|
||
|
|
if i < len_res - 1 and result[i] == '-1' and result[i + 1] == xsym('*'):
|
||
|
|
# substitute -1 by -, like in -1*x -> -x
|
||
|
|
result.pop(i)
|
||
|
|
result.pop(i)
|
||
|
|
result.insert(i, '-')
|
||
|
|
if result[0][0] == '-':
|
||
|
|
# if there is a - sign in front of all
|
||
|
|
# This test was failing to catch a prettyForm.__mul__(prettyForm("-1", 0, 6)) being negative
|
||
|
|
bin = prettyForm.NEG
|
||
|
|
if result[0] == '-':
|
||
|
|
right = result[1]
|
||
|
|
if right.picture[right.baseline][0] == '-':
|
||
|
|
result[0] = '- '
|
||
|
|
else:
|
||
|
|
bin = prettyForm.MUL
|
||
|
|
return prettyForm(binding=bin, *stringPict.next(*result))
|
||
|
|
|
||
|
|
def __repr__(self):
|
||
|
|
return "prettyForm(%r,%d,%d)" % (
|
||
|
|
'\n'.join(self.picture),
|
||
|
|
self.baseline,
|
||
|
|
self.binding)
|
||
|
|
|
||
|
|
def __pow__(self, b):
|
||
|
|
"""Make a pretty power.
|
||
|
|
"""
|
||
|
|
a = self
|
||
|
|
use_inline_func_form = False
|
||
|
|
if b.binding == prettyForm.POW:
|
||
|
|
b = stringPict(*b.parens())
|
||
|
|
if a.binding > prettyForm.FUNC:
|
||
|
|
a = stringPict(*a.parens())
|
||
|
|
elif a.binding == prettyForm.FUNC:
|
||
|
|
# heuristic for when to use inline power
|
||
|
|
if b.height() > 1:
|
||
|
|
a = stringPict(*a.parens())
|
||
|
|
else:
|
||
|
|
use_inline_func_form = True
|
||
|
|
|
||
|
|
if use_inline_func_form:
|
||
|
|
# 2
|
||
|
|
# sin + + (x)
|
||
|
|
b.baseline = a.prettyFunc.baseline + b.height()
|
||
|
|
func = stringPict(*a.prettyFunc.right(b))
|
||
|
|
return prettyForm(*func.right(a.prettyArgs))
|
||
|
|
else:
|
||
|
|
# 2 <-- top
|
||
|
|
# (x+y) <-- bot
|
||
|
|
top = stringPict(*b.left(' '*a.width()))
|
||
|
|
bot = stringPict(*a.right(' '*b.width()))
|
||
|
|
|
||
|
|
return prettyForm(binding=prettyForm.POW, *bot.above(top))
|
||
|
|
|
||
|
|
simpleFunctions = ["sin", "cos", "tan"]
|
||
|
|
|
||
|
|
@staticmethod
|
||
|
|
def apply(function, *args):
|
||
|
|
"""Functions of one or more variables.
|
||
|
|
"""
|
||
|
|
if function in prettyForm.simpleFunctions:
|
||
|
|
#simple function: use only space if possible
|
||
|
|
assert len(
|
||
|
|
args) == 1, "Simple function %s must have 1 argument" % function
|
||
|
|
arg = args[0].__pretty__()
|
||
|
|
if arg.binding <= prettyForm.DIV:
|
||
|
|
#optimization: no parentheses necessary
|
||
|
|
return prettyForm(binding=prettyForm.FUNC, *arg.left(function + ' '))
|
||
|
|
argumentList = []
|
||
|
|
for arg in args:
|
||
|
|
argumentList.append(',')
|
||
|
|
argumentList.append(arg.__pretty__())
|
||
|
|
argumentList = stringPict(*stringPict.next(*argumentList[1:]))
|
||
|
|
argumentList = stringPict(*argumentList.parens())
|
||
|
|
return prettyForm(binding=prettyForm.ATOM, *argumentList.left(function))
|