159 lines
6.7 KiB
Python
159 lines
6.7 KiB
Python
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#! /usr/bin/env python
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# encoding: utf-8
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import sys,os
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try:
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if(not sys.stderr.isatty())or(not sys.stdout.isatty()):
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raise ValueError('not a tty')
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from ctypes import*
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class COORD(Structure):
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_fields_=[("X",c_short),("Y",c_short)]
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class SMALL_RECT(Structure):
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_fields_=[("Left",c_short),("Top",c_short),("Right",c_short),("Bottom",c_short)]
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class CONSOLE_SCREEN_BUFFER_INFO(Structure):
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_fields_=[("Size",COORD),("CursorPosition",COORD),("Attributes",c_short),("Window",SMALL_RECT),("MaximumWindowSize",COORD)]
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class CONSOLE_CURSOR_INFO(Structure):
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_fields_=[('dwSize',c_ulong),('bVisible',c_int)]
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sbinfo=CONSOLE_SCREEN_BUFFER_INFO()
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csinfo=CONSOLE_CURSOR_INFO()
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hconsole=windll.kernel32.GetStdHandle(-11)
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windll.kernel32.GetConsoleScreenBufferInfo(hconsole,byref(sbinfo))
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if sbinfo.Size.X<10 or sbinfo.Size.Y<10:raise Exception('small console')
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windll.kernel32.GetConsoleCursorInfo(hconsole,byref(csinfo))
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except Exception:
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pass
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else:
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import re,threading
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to_int=lambda number,default:number and int(number)or default
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wlock=threading.Lock()
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STD_OUTPUT_HANDLE=-11
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STD_ERROR_HANDLE=-12
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class AnsiTerm(object):
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def __init__(self):
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self.hconsole=windll.kernel32.GetStdHandle(STD_OUTPUT_HANDLE)
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self.cursor_history=[]
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self.orig_sbinfo=CONSOLE_SCREEN_BUFFER_INFO()
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self.orig_csinfo=CONSOLE_CURSOR_INFO()
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windll.kernel32.GetConsoleScreenBufferInfo(self.hconsole,byref(self.orig_sbinfo))
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windll.kernel32.GetConsoleCursorInfo(hconsole,byref(self.orig_csinfo))
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def screen_buffer_info(self):
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sbinfo=CONSOLE_SCREEN_BUFFER_INFO()
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windll.kernel32.GetConsoleScreenBufferInfo(self.hconsole,byref(sbinfo))
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return sbinfo
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def clear_line(self,param):
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mode=param and int(param)or 0
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sbinfo=self.screen_buffer_info()
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if mode==1:
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line_start=COORD(0,sbinfo.CursorPosition.Y)
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line_length=sbinfo.Size.X
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elif mode==2:
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line_start=COORD(sbinfo.CursorPosition.X,sbinfo.CursorPosition.Y)
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line_length=sbinfo.Size.X-sbinfo.CursorPosition.X
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else:
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line_start=sbinfo.CursorPosition
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line_length=sbinfo.Size.X-sbinfo.CursorPosition.X
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chars_written=c_int()
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windll.kernel32.FillConsoleOutputCharacterA(self.hconsole,c_char(' '),line_length,line_start,byref(chars_written))
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windll.kernel32.FillConsoleOutputAttribute(self.hconsole,sbinfo.Attributes,line_length,line_start,byref(chars_written))
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def clear_screen(self,param):
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mode=to_int(param,0)
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sbinfo=self.screen_buffer_info()
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if mode==1:
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clear_start=COORD(0,0)
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clear_length=sbinfo.CursorPosition.X*sbinfo.CursorPosition.Y
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elif mode==2:
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clear_start=COORD(0,0)
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clear_length=sbinfo.Size.X*sbinfo.Size.Y
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windll.kernel32.SetConsoleCursorPosition(self.hconsole,clear_start)
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else:
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clear_start=sbinfo.CursorPosition
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clear_length=((sbinfo.Size.X-sbinfo.CursorPosition.X)+sbinfo.Size.X*(sbinfo.Size.Y-sbinfo.CursorPosition.Y))
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chars_written=c_int()
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windll.kernel32.FillConsoleOutputCharacterA(self.hconsole,c_char(' '),clear_length,clear_start,byref(chars_written))
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windll.kernel32.FillConsoleOutputAttribute(self.hconsole,sbinfo.Attributes,clear_length,clear_start,byref(chars_written))
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def push_cursor(self,param):
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sbinfo=self.screen_buffer_info()
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self.cursor_history.push(sbinfo.CursorPosition)
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def pop_cursor(self,param):
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if self.cursor_history:
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old_pos=self.cursor_history.pop()
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windll.kernel32.SetConsoleCursorPosition(self.hconsole,old_pos)
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def set_cursor(self,param):
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x,sep,y=param.partition(';')
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x=to_int(x,1)-1
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y=to_int(y,1)-1
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sbinfo=self.screen_buffer_info()
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new_pos=COORD(min(max(0,x),sbinfo.Size.X),min(max(0,y),sbinfo.Size.Y))
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windll.kernel32.SetConsoleCursorPosition(self.hconsole,new_pos)
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def set_column(self,param):
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x=to_int(param,1)-1
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sbinfo=self.screen_buffer_info()
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new_pos=COORD(min(max(0,x),sbinfo.Size.X),sbinfo.CursorPosition.Y)
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windll.kernel32.SetConsoleCursorPosition(self.hconsole,new_pos)
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def move_cursor(self,x_offset=0,y_offset=0):
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sbinfo=self.screen_buffer_info()
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new_pos=COORD(min(max(0,sbinfo.CursorPosition.X+x_offset),sbinfo.Size.X),min(max(0,sbinfo.CursorPosition.Y+y_offset),sbinfo.Size.Y))
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windll.kernel32.SetConsoleCursorPosition(self.hconsole,new_pos)
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def move_up(self,param):
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self.move_cursor(y_offset=-to_int(param,1))
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def move_down(self,param):
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self.move_cursor(y_offset=to_int(param,1))
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def move_left(self,param):
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self.move_cursor(x_offset=-to_int(param,1))
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def move_right(self,param):
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self.move_cursor(x_offset=to_int(param,1))
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def next_line(self,param):
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sbinfo=self.screen_buffer_info()
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self.move_cursor(x_offset=-sbinfo.CursorPosition.X,y_offset=to_int(param,1))
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def prev_line(self,param):
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sbinfo=self.screen_buffer_info()
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self.move_cursor(x_offset=-sbinfo.CursorPosition.X,y_offset=-to_int(param,1))
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escape_to_color={(0,30):0x0,(0,31):0x4,(0,32):0x2,(0,33):0x4+0x2,(0,34):0x1,(0,35):0x1+0x4,(0,36):0x2+0x4,(0,37):0x1+0x2+0x4,(1,30):0x1+0x2+0x4,(1,31):0x4+0x8,(1,32):0x2+0x8,(1,33):0x4+0x2+0x8,(1,34):0x1+0x8,(1,35):0x1+0x4+0x8,(1,36):0x1+0x2+0x8,(1,37):0x1+0x2+0x4+0x8,}
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def set_color(self,param):
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cols=param.split(';')
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attr=self.orig_sbinfo.Attributes
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for c in cols:
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c=to_int(c,0)
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if c in range(30,38):
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attr=(attr&0xf0)|(self.escape_to_color.get((0,c),0x7))
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elif c in range(40,48):
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attr=(attr&0x0f)|(self.escape_to_color.get((0,c),0x7)<<8)
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elif c in range(90,98):
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attr=(attr&0xf0)|(self.escape_to_color.get((1,c-60),0x7))
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elif c in range(100,108):
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attr=(attr&0x0f)|(self.escape_to_color.get((1,c-60),0x7)<<8)
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elif c==1:
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attr|=0x08
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windll.kernel32.SetConsoleTextAttribute(self.hconsole,attr)
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def show_cursor(self,param):
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csinfo.bVisible=1
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windll.kernel32.SetConsoleCursorInfo(self.hconsole,byref(csinfo))
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def hide_cursor(self,param):
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csinfo.bVisible=0
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windll.kernel32.SetConsoleCursorInfo(self.hconsole,byref(csinfo))
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ansi_command_table={'A':move_up,'B':move_down,'C':move_right,'D':move_left,'E':next_line,'F':prev_line,'G':set_column,'H':set_cursor,'f':set_cursor,'J':clear_screen,'K':clear_line,'h':show_cursor,'l':hide_cursor,'m':set_color,'s':push_cursor,'u':pop_cursor,}
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ansi_tokans=re.compile('(?:\x1b\[([0-9?;]*)([a-zA-Z])|([^\x1b]+))')
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def write(self,text):
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try:
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wlock.acquire()
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for param,cmd,txt in self.ansi_tokans.findall(text):
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if cmd:
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cmd_func=self.ansi_command_table.get(cmd)
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if cmd_func:
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cmd_func(self,param)
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else:
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chars_written=c_int()
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if isinstance(txt,unicode):
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windll.kernel32.WriteConsoleW(self.hconsole,txt,len(txt),byref(chars_written),None)
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else:
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windll.kernel32.WriteConsoleA(self.hconsole,txt,len(txt),byref(chars_written),None)
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finally:
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wlock.release()
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def flush(self):
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pass
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def isatty(self):
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return True
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sys.stderr=sys.stdout=AnsiTerm()
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os.environ['TERM']='vt100'
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