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