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# -*- coding: ISO-8859-1 -*-from __future__ import print_function, unicode_literals, absolute_importimport re, sys, os
terminal_escape = re.compile('(\001?\033\\[[0-9;]*m\002?)')escape_parts = re.compile('\001?\033\\[([0-9;]*)m\002?')
class AnsiState(object): def __init__(self, bold=False, inverse=False, color="white", background="black", backgroundbold=False): self.bold = bold self.inverse = inverse self.color = color self.background = background self.backgroundbold = backgroundbold
trtable = {"black":0, "red":4, "green":2, "yellow":6, "blue":1, "magenta":5, "cyan":3, "white":7} revtable = dict(zip(trtable.values(),trtable.keys())) def get_winattr(self): attr = 0 if self.bold: attr |= 0x0008 if self.backgroundbold: attr |= 0x0080 if self.inverse: attr |= 0x4000 attr |= self.trtable[self.color] attr |= (self.trtable[self.background] << 4) return attr
def set_winattr(self, attr): self.bold = bool(attr & 0x0008) self.backgroundbold = bool(attr & 0x0080) self.inverse = bool(attr & 0x4000) self.color = self.revtable[attr & 0x0007] self.background = self.revtable[(attr & 0x0070) >> 4] winattr = property(get_winattr, set_winattr) def __repr__(self): return 'AnsiState(bold=%s,inverse=%s,color=%9s,' \ 'background=%9s,backgroundbold=%s)# 0x%x'% \ (self.bold, self.inverse, '"%s"'%self.color, '"%s"'%self.background, self.backgroundbold, self.winattr)
def copy(self): x = AnsiState() x.bold = self.bold x.inverse = self.inverse x.color = self.color x.background = self.background x.backgroundbold = self.backgroundbold return x
defaultstate = AnsiState(False, False, "white")
trtable = {0:"black", 1:"red", 2:"green", 3:"yellow", 4:"blue", 5:"magenta", 6:"cyan", 7:"white"}
class AnsiWriter(object): def __init__(self, default=defaultstate): if isinstance(defaultstate, AnsiState): self.defaultstate = default else: self.defaultstate=AnsiState() self.defaultstate.winattr = defaultstate def write_color(self,text, attr=None): '''write text at current cursor position and interpret color escapes.
return the number of characters written. '''
if isinstance(attr,AnsiState): defaultstate = attr elif attr is None: #use attribute form initial console attr = self.defaultstate.copy() else: defaultstate = AnsiState() defaultstate.winattr = attr attr = defaultstate chunks = terminal_escape.split(text) n = 0 # count the characters we actually write, omitting the escapes res=[] for chunk in chunks: m = escape_parts.match(chunk) if m: parts = m.group(1).split(";") if len(parts) == 1 and parts[0] == "0": attr = self.defaultstate.copy() continue for part in parts: if part == "0": # No text attribute attr = self.defaultstate.copy() attr.bold=False elif part == "7": # switch on reverse attr.inverse=True elif part == "1": # switch on bold (i.e. intensify foreground color) attr.bold=True elif len(part) == 2 and "30" <= part <= "37": # set foreground color attr.color = trtable[int(part) - 30] elif len(part) == 2 and "40" <= part <= "47": # set background color attr.backgroundcolor = trtable[int(part) - 40] continue n += len(chunk) if True: res.append((attr.copy(), chunk)) return n,res
def parse_color(self,text, attr=None): n, res = self.write_color(text, attr) return n, [attr.winattr for attr, text in res]
def write_color(text, attr=None): a = AnsiWriter(defaultstate) return a.write_color(text, attr)
def write_color_old( text, attr=None): '''write text at current cursor position and interpret color escapes.
return the number of characters written. '''
res = [] chunks = terminal_escape.split(text) n = 0 # count the characters we actually write, omitting the escapes if attr is None:#use attribute from initial console attr = 15 for chunk in chunks: m = escape_parts.match(chunk) if m: for part in m.group(1).split(";"): if part == "0": # No text attribute attr = 0 elif part == "7": # switch on reverse attr |= 0x4000 if part == "1": # switch on bold (i.e. intensify foreground color) attr |= 0x08 elif len(part) == 2 and "30" <= part <= "37": # set foreground color part = int(part)-30 # we have to mirror bits attr = (attr & ~0x07) | ((part & 0x1) << 2) | (part & 0x2) | ((part & 0x4) >> 2) elif len(part) == 2 and "40" <= part <= "47": # set background color part = int(part) - 40 # we have to mirror bits attr = (attr & ~0x70) | ((part & 0x1) << 6) | ((part & 0x2) << 4) | ((part & 0x4) << 2) # ignore blink, underline and anything we don't understand continue n += len(chunk) if chunk: res.append(("0x%x"%attr, chunk)) return res
#trtable={0:"black",1:"red",2:"green",3:"yellow",4:"blue",5:"magenta",6:"cyan",7:"white"}
if __name__ == "__main__x": import pprint pprint = pprint.pprint
s = "\033[0;31mred\033[0;32mgreen\033[0;33myellow\033[0;34mblue\033[0;35mmagenta\033[0;36mcyan\033[0;37mwhite\033[0m" pprint (write_color(s)) pprint (write_color_old(s)) s = "\033[1;31mred\033[1;32mgreen\033[1;33myellow\033[1;34mblue\033[1;35mmagenta\033[1;36mcyan\033[1;37mwhite\033[0m" pprint (write_color(s)) pprint (write_color_old(s))
s = "\033[0;7;31mred\033[0;7;32mgreen\033[0;7;33myellow\033[0;7;34mblue\033[0;7;35mmagenta\033[0;7;36mcyan\033[0;7;37mwhite\033[0m" pprint (write_color(s)) pprint (write_color_old(s)) s = "\033[1;7;31mred\033[1;7;32mgreen\033[1;7;33myellow\033[1;7;34mblue\033[1;7;35mmagenta\033[1;7;36mcyan\033[1;7;37mwhite\033[0m" pprint (write_color(s)) pprint (write_color_old(s))
if __name__ == "__main__": import console import pprint pprint = pprint.pprint c = console.Console() c.write_color("dhsjdhs") c.write_color("\033[0;32mIn [\033[1;32m1\033[0;32m]:") print pprint (write_color("\033[0;32mIn [\033[1;32m1\033[0;32m]:")) if __name__ == "__main__x": import pprint pprint = pprint.pprint s = "\033[0;31mred\033[0;32mgreen\033[0;33myellow\033[0;34mblue\033[0;35mmagenta\033[0;36mcyan\033[0;37mwhite\033[0m" pprint (write_color(s))
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