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 parens(self, left='(', right=')', ifascii_nougly=False): """Put parentheses around self. Returns string, baseline arguments for stringPict. """ 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 lparen = stringPict(vobj(left, h), baseline=b) rparen = stringPict(vobj(right, h), baseline=b) return lparen.right(self, rparen)
def _print_abs(self, e): pform = self._print(e[0]) vbar = vobj('|', pform.height()) vbar = stringPict(vbar, baseline=pform.baseline) pform = prettyForm(*pform.left (vbar)) pform = prettyForm(*pform.right(vbar)) return pform
def _print_Subs(self, e): pform = self._print(e.expr) pform = prettyForm(*pform.parens()) h = pform.height() if pform.height() > 1 else 2 rvert = stringPict(vobj('|', h), baseline=pform.baseline) pform = prettyForm(*pform.right(rvert)) b = pform.baseline pform.baseline = pform.height() - 1 pform = prettyForm(*pform.right(self._print_seq([ self._print_seq((self._print(v[0]), xsym('=='), self._print(v[1])), delimiter='') for v in zip(e.variables, e.point) ]))) pform.baseline = b return pform
def asum(hrequired, lower, upper, use_ascii): def adjust(s, wid=None, how='<^>'): if not wid or len(s) > wid: return s need = wid - len(s) if how == '<^>' or how == "<" or how not in list('<^>'): return s + ' ' * need half = need // 2 lead = ' ' * half if how == ">": return " " * need + s return lead + s + ' ' * (need - len(lead)) h = max(hrequired, 2) d = h // 2 wrequired = max(lower, upper) w = d + 1 more = hrequired % 2 lines = [] if use_ascii: lines.append("_" * (w) + ' ') lines.append("\%s`" % (' ' * (w - 1))) for i in range(1, d): lines.append('%s\\%s' % (' ' * i, ' ' * (w - i))) if more: lines.append('%s)%s' % (' ' * (d), ' ' * (w - d))) for i in reversed(range(1, d)): lines.append('%s/%s' % (' ' * i, ' ' * (w - i))) lines.append("/" + "_" * (w - 1) + ',') return d, h + more, lines, 0 else: w = w + more d = d + more vsum = vobj('sum', 4) lines.append("_" * (w)) for i in range(0, d): lines.append('%s%s%s' % (' ' * i, vsum[2], ' ' * (w - i - 1))) for i in reversed(range(0, d)): lines.append('%s%s%s' % (' ' * i, vsum[4], ' ' * (w - i - 1))) lines.append(vsum[8] * (w)) return d, h + 2 * more, lines, more
def asum(hrequired, lower, upper, use_ascii): def adjust(s, wid=None, how='<^>'): if not wid or len(s)>wid: return s need = wid - len(s) if how == '<^>' or how == "<" or how not in list('<^>'): return s + ' '*need half = need//2 lead = ' '*half if how == ">": return " "*need + s return lead + s + ' '*(need - len(lead)) h = max(hrequired, 2) d = h//2 wrequired = max(lower, upper) w = d + 1 more = hrequired % 2 lines = [] if use_ascii: lines.append("_"*(w) + ' ') lines.append("\%s`" % (' '*(w - 1))) for i in range(1, d): lines.append('%s\\%s' % (' '*i, ' '*(w - i))) if more: lines.append('%s)%s' % (' '*(d), ' '*(w - d))) for i in reversed(range(1, d)): lines.append('%s/%s' % (' '*i, ' '*(w - i))) lines.append("/" + "_"*(w - 1) + ',') return d, h + more, lines, 0 else: w = w + more d = d + more vsum = vobj('sum', 4) lines.append("_"*(w)) for i in range(0, d): lines.append('%s%s%s' % (' '*i, vsum[2], ' '*(w - i - 1))) for i in reversed(range(0, d)): lines.append('%s%s%s' % (' '*i, vsum[4], ' '*(w - i - 1))) lines.append(vsum[8]*(w)) return d, h + 2*more, lines, more
def _hprint_vseparator(self, p1, p2): tmp = prettyForm(*p1.right(p2)) sep = stringPict(vobj('|', tmp.height()), baseline=tmp.baseline) return prettyForm(*p1.right(sep, p2))
def _print_Integral(self, integral): f = integral.function # Add parentheses if arg involves addition of terms and # create a pretty form for the argument prettyF = self._print(f) # XXX generalize parens if f.is_Add: prettyF = prettyForm(*prettyF.parens()) # dx dy dz ... arg = prettyF for x in integral.limits: prettyArg = self._print(x[0]) # XXX qparens (parens if needs-parens) if prettyArg.width() > 1: prettyArg = prettyForm(*prettyArg.parens()) arg = prettyForm(*arg.right(' d', prettyArg)) # \int \int \int ... firstterm = True s = None for lim in integral.limits: x = lim[0] # Create bar based on the height of the argument h = arg.height() H = h+2 # XXX hack! ascii_mode = not self._use_unicode if ascii_mode: H += 2 vint= vobj('int', H) # Construct the pretty form with the integral sign and the argument pform = prettyForm(vint) #pform.baseline = pform.height()//2 # vcenter pform.baseline = arg.baseline + (H-h)//2 # covering the whole argument if len(lim) > 1: # Create pretty forms for endpoints, if definite integral. # Do not print empty endpoints. if len(lim) == 2: prettyA = prettyForm("") prettyB = self._print(lim[1]) if len(lim) == 3: prettyA = self._print(lim[1]) prettyB = self._print(lim[2]) if ascii_mode: # XXX hack # Add spacing so that endpoint can more easily be # identified with the correct integral sign spc = max(1, 3 - prettyB.width()) prettyB = prettyForm(*prettyB.left(' ' * spc)) spc = max(1, 4 - prettyA.width()) prettyA = prettyForm(*prettyA.right(' ' * spc)) pform = prettyForm(*pform.above(prettyB)) pform = prettyForm(*pform.below(prettyA)) #if ascii_mode: # XXX hack # # too much vspace beetween \int and argument # # but I left it as is # pform = prettyForm(*pform.right(' ')) if not ascii_mode: # XXX hack pform = prettyForm(*pform.right(' ')) if firstterm: s = pform # first term firstterm = False else: s = prettyForm(*s.left(pform)) pform = prettyForm(*arg.left(s)) return pform
def _print_Integral(self, integral): f = integral.function # Add parentheses if arg involves addition of terms and # create a pretty form for the argument prettyF = self._print(f) # XXX generalize parens if f.is_Add: prettyF = prettyForm(*prettyF.parens()) # dx dy dz ... arg = prettyF for x in integral.limits: prettyArg = self._print(x[0]) # XXX qparens (parens if needs-parens) if prettyArg.width() > 1: prettyArg = prettyForm(*prettyArg.parens()) arg = prettyForm(*arg.right(' d', prettyArg)) # \int \int \int ... firstterm = True s = None for lim in integral.limits: x = lim[0] # Create bar based on the height of the argument h = arg.height() H = h + 2 # XXX hack! ascii_mode = not self._use_unicode if ascii_mode: H += 2 vint = vobj('int', H) # Construct the pretty form with the integral sign and the argument pform = prettyForm(vint) #pform.baseline = pform.height()//2 # vcenter pform.baseline = arg.baseline + ( H - h) // 2 # covering the whole argument if len(lim) > 1: # Create pretty forms for endpoints, if definite integral. # Do not print empty endpoints. if len(lim) == 2: prettyA = prettyForm("") prettyB = self._print(lim[1]) if len(lim) == 3: prettyA = self._print(lim[1]) prettyB = self._print(lim[2]) if ascii_mode: # XXX hack # Add spacing so that endpoint can more easily be # identified with the correct integral sign spc = max(1, 3 - prettyB.width()) prettyB = prettyForm(*prettyB.left(' ' * spc)) spc = max(1, 4 - prettyA.width()) prettyA = prettyForm(*prettyA.right(' ' * spc)) pform = prettyForm(*pform.above(prettyB)) pform = prettyForm(*pform.below(prettyA)) #if ascii_mode: # XXX hack # # too much vspace beetween \int and argument # # but I left it as is # pform = prettyForm(*pform.right(' ')) if not ascii_mode: # XXX hack pform = prettyForm(*pform.right(' ')) if firstterm: s = pform # first term firstterm = False else: s = prettyForm(*s.left(pform)) pform = prettyForm(*arg.left(s)) return pform
def _print_Integral(self, integral): f = integral.function # Add parentheses if a sum and create pretty form for argument prettyF = self._print(f) # XXX generalize parents if isinstance(f, Basic.Add): prettyF = prettyForm(*prettyF.parens()) # dx dy dz ... arg = prettyF for x,ab in integral.limits: prettyArg = self._print(x) # XXX qparens (parens if needs-parens) if prettyArg.width() > 1: prettyArg = prettyForm(*prettyArg.parens()) arg = prettyForm(*arg.right(' d', prettyArg)) # \int \int \int ... firstterm = True S = None for x,ab in integral.limits: # Create bar based on the height of the argument h = arg.height() H = h+2 # XXX hack! ascii_mode = not pretty_use_unicode() if ascii_mode: H += 2 vint= vobj('int', H) # Construct the pretty form with the integral sign and the argument pform = prettyForm(vint) #pform.baseline = pform.height()//2 # vcenter pform.baseline = arg.baseline + (H-h)//2 # covering the whole argument if ab is not None: # Create pretty forms for endpoints, if definite integral prettyA = self._print(ab[0]) prettyB = self._print(ab[1]) if ascii_mode: # XXX hack # Add spacing so that endpoint can more easily be # identified with the correct integral sign spc = max(1, 3 - prettyB.width()) prettyB = prettyForm(*prettyB.left(' ' * spc)) spc = max(1, 4 - prettyA.width()) prettyA = prettyForm(*prettyA.right(' ' * spc)) pform = prettyForm(*pform.above(prettyB)) pform = prettyForm(*pform.below(prettyA)) #if ascii_mode: # XXX hack # # too much vspace beetween \int and argument # # but I left it as is # pform = prettyForm(*pform.right(' ')) if not ascii_mode: # XXX hack pform = prettyForm(*pform.right(' ')) if firstterm: S = pform # first term firstterm = False else: S = prettyForm(*S.left(pform)) pform = prettyForm(*arg.left(S)) return pform