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-rw-r--r--pugl/waflib/ansiterm.py342
1 files changed, 342 insertions, 0 deletions
diff --git a/pugl/waflib/ansiterm.py b/pugl/waflib/ansiterm.py
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+++ b/pugl/waflib/ansiterm.py
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+#!/usr/bin/env python
+# encoding: utf-8
+
+"""
+Emulate a vt100 terminal in cmd.exe
+
+By wrapping sys.stdout / sys.stderr with Ansiterm,
+the vt100 escape characters will be interpreted and
+the equivalent actions will be performed with Win32
+console commands.
+
+"""
+
+import os, re, sys
+from waflib import Utils
+
+wlock = Utils.threading.Lock()
+
+try:
+ from ctypes import Structure, windll, c_short, c_ushort, c_ulong, c_int, byref, c_wchar, POINTER, c_long
+except ImportError:
+
+ class AnsiTerm(object):
+ def __init__(self, stream):
+ self.stream = stream
+ try:
+ self.errors = self.stream.errors
+ except AttributeError:
+ pass # python 2.5
+ self.encoding = self.stream.encoding
+
+ def write(self, txt):
+ try:
+ wlock.acquire()
+ self.stream.write(txt)
+ self.stream.flush()
+ finally:
+ wlock.release()
+
+ def fileno(self):
+ return self.stream.fileno()
+
+ def flush(self):
+ self.stream.flush()
+
+ def isatty(self):
+ return self.stream.isatty()
+else:
+
+ class COORD(Structure):
+ _fields_ = [("X", c_short), ("Y", c_short)]
+
+ class SMALL_RECT(Structure):
+ _fields_ = [("Left", c_short), ("Top", c_short), ("Right", c_short), ("Bottom", c_short)]
+
+ class CONSOLE_SCREEN_BUFFER_INFO(Structure):
+ _fields_ = [("Size", COORD), ("CursorPosition", COORD), ("Attributes", c_ushort), ("Window", SMALL_RECT), ("MaximumWindowSize", COORD)]
+
+ class CONSOLE_CURSOR_INFO(Structure):
+ _fields_ = [('dwSize', c_ulong), ('bVisible', c_int)]
+
+ try:
+ _type = unicode
+ except NameError:
+ _type = str
+
+ to_int = lambda number, default: number and int(number) or default
+
+ STD_OUTPUT_HANDLE = -11
+ STD_ERROR_HANDLE = -12
+
+ windll.kernel32.GetStdHandle.argtypes = [c_ulong]
+ windll.kernel32.GetStdHandle.restype = c_ulong
+ windll.kernel32.GetConsoleScreenBufferInfo.argtypes = [c_ulong, POINTER(CONSOLE_SCREEN_BUFFER_INFO)]
+ windll.kernel32.GetConsoleScreenBufferInfo.restype = c_long
+ windll.kernel32.SetConsoleTextAttribute.argtypes = [c_ulong, c_ushort]
+ windll.kernel32.SetConsoleTextAttribute.restype = c_long
+ windll.kernel32.FillConsoleOutputCharacterW.argtypes = [c_ulong, c_wchar, c_ulong, POINTER(COORD), POINTER(c_ulong)]
+ windll.kernel32.FillConsoleOutputCharacterW.restype = c_long
+ windll.kernel32.FillConsoleOutputAttribute.argtypes = [c_ulong, c_ushort, c_ulong, POINTER(COORD), POINTER(c_ulong) ]
+ windll.kernel32.FillConsoleOutputAttribute.restype = c_long
+ windll.kernel32.SetConsoleCursorPosition.argtypes = [c_ulong, POINTER(COORD) ]
+ windll.kernel32.SetConsoleCursorPosition.restype = c_long
+ windll.kernel32.SetConsoleCursorInfo.argtypes = [c_ulong, POINTER(CONSOLE_CURSOR_INFO)]
+ windll.kernel32.SetConsoleCursorInfo.restype = c_long
+
+ class AnsiTerm(object):
+ """
+ emulate a vt100 terminal in cmd.exe
+ """
+ def __init__(self, s):
+ self.stream = s
+ try:
+ self.errors = s.errors
+ except AttributeError:
+ pass # python2.5
+ self.encoding = s.encoding
+ self.cursor_history = []
+
+ handle = (s.fileno() == 2) and STD_ERROR_HANDLE or STD_OUTPUT_HANDLE
+ self.hconsole = windll.kernel32.GetStdHandle(handle)
+
+ self._sbinfo = CONSOLE_SCREEN_BUFFER_INFO()
+
+ self._csinfo = CONSOLE_CURSOR_INFO()
+ windll.kernel32.GetConsoleCursorInfo(self.hconsole, byref(self._csinfo))
+
+ # just to double check that the console is usable
+ self._orig_sbinfo = CONSOLE_SCREEN_BUFFER_INFO()
+ r = windll.kernel32.GetConsoleScreenBufferInfo(self.hconsole, byref(self._orig_sbinfo))
+ self._isatty = r == 1
+
+ def screen_buffer_info(self):
+ """
+ Updates self._sbinfo and returns it
+ """
+ windll.kernel32.GetConsoleScreenBufferInfo(self.hconsole, byref(self._sbinfo))
+ return self._sbinfo
+
+ def clear_line(self, param):
+ mode = param and int(param) or 0
+ sbinfo = self.screen_buffer_info()
+ if mode == 1: # Clear from beginning of line to cursor position
+ line_start = COORD(0, sbinfo.CursorPosition.Y)
+ line_length = sbinfo.Size.X
+ elif mode == 2: # Clear entire line
+ line_start = COORD(sbinfo.CursorPosition.X, sbinfo.CursorPosition.Y)
+ line_length = sbinfo.Size.X - sbinfo.CursorPosition.X
+ else: # Clear from cursor position to end of line
+ line_start = sbinfo.CursorPosition
+ line_length = sbinfo.Size.X - sbinfo.CursorPosition.X
+ chars_written = c_ulong()
+ windll.kernel32.FillConsoleOutputCharacterW(self.hconsole, c_wchar(' '), line_length, line_start, byref(chars_written))
+ windll.kernel32.FillConsoleOutputAttribute(self.hconsole, sbinfo.Attributes, line_length, line_start, byref(chars_written))
+
+ def clear_screen(self, param):
+ mode = to_int(param, 0)
+ sbinfo = self.screen_buffer_info()
+ if mode == 1: # Clear from beginning of screen to cursor position
+ clear_start = COORD(0, 0)
+ clear_length = sbinfo.CursorPosition.X * sbinfo.CursorPosition.Y
+ elif mode == 2: # Clear entire screen and return cursor to home
+ clear_start = COORD(0, 0)
+ clear_length = sbinfo.Size.X * sbinfo.Size.Y
+ windll.kernel32.SetConsoleCursorPosition(self.hconsole, clear_start)
+ else: # Clear from cursor position to end of screen
+ clear_start = sbinfo.CursorPosition
+ clear_length = ((sbinfo.Size.X - sbinfo.CursorPosition.X) + sbinfo.Size.X * (sbinfo.Size.Y - sbinfo.CursorPosition.Y))
+ chars_written = c_ulong()
+ windll.kernel32.FillConsoleOutputCharacterW(self.hconsole, c_wchar(' '), clear_length, clear_start, byref(chars_written))
+ windll.kernel32.FillConsoleOutputAttribute(self.hconsole, sbinfo.Attributes, clear_length, clear_start, byref(chars_written))
+
+ def push_cursor(self, param):
+ sbinfo = self.screen_buffer_info()
+ self.cursor_history.append(sbinfo.CursorPosition)
+
+ def pop_cursor(self, param):
+ if self.cursor_history:
+ old_pos = self.cursor_history.pop()
+ windll.kernel32.SetConsoleCursorPosition(self.hconsole, old_pos)
+
+ def set_cursor(self, param):
+ y, sep, x = param.partition(';')
+ x = to_int(x, 1) - 1
+ y = to_int(y, 1) - 1
+ sbinfo = self.screen_buffer_info()
+ new_pos = COORD(
+ min(max(0, x), sbinfo.Size.X),
+ min(max(0, y), sbinfo.Size.Y)
+ )
+ windll.kernel32.SetConsoleCursorPosition(self.hconsole, new_pos)
+
+ def set_column(self, param):
+ x = to_int(param, 1) - 1
+ sbinfo = self.screen_buffer_info()
+ new_pos = COORD(
+ min(max(0, x), sbinfo.Size.X),
+ sbinfo.CursorPosition.Y
+ )
+ windll.kernel32.SetConsoleCursorPosition(self.hconsole, new_pos)
+
+ def move_cursor(self, x_offset=0, y_offset=0):
+ sbinfo = self.screen_buffer_info()
+ 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)
+ )
+ windll.kernel32.SetConsoleCursorPosition(self.hconsole, new_pos)
+
+ def move_up(self, param):
+ self.move_cursor(y_offset = -to_int(param, 1))
+
+ def move_down(self, param):
+ self.move_cursor(y_offset = to_int(param, 1))
+
+ def move_left(self, param):
+ self.move_cursor(x_offset = -to_int(param, 1))
+
+ def move_right(self, param):
+ self.move_cursor(x_offset = to_int(param, 1))
+
+ def next_line(self, param):
+ sbinfo = self.screen_buffer_info()
+ self.move_cursor(
+ x_offset = -sbinfo.CursorPosition.X,
+ y_offset = to_int(param, 1)
+ )
+
+ def prev_line(self, param):
+ sbinfo = self.screen_buffer_info()
+ self.move_cursor(
+ x_offset = -sbinfo.CursorPosition.X,
+ y_offset = -to_int(param, 1)
+ )
+
+ def rgb2bgr(self, c):
+ return ((c&1) << 2) | (c&2) | ((c&4)>>2)
+
+ def set_color(self, param):
+ cols = param.split(';')
+ sbinfo = self.screen_buffer_info()
+ attr = sbinfo.Attributes
+ for c in cols:
+ c = to_int(c, 0)
+ if 29 < c < 38: # fgcolor
+ attr = (attr & 0xfff0) | self.rgb2bgr(c - 30)
+ elif 39 < c < 48: # bgcolor
+ attr = (attr & 0xff0f) | (self.rgb2bgr(c - 40) << 4)
+ elif c == 0: # reset
+ attr = self._orig_sbinfo.Attributes
+ elif c == 1: # strong
+ attr |= 0x08
+ elif c == 4: # blink not available -> bg intensity
+ attr |= 0x80
+ elif c == 7: # negative
+ attr = (attr & 0xff88) | ((attr & 0x70) >> 4) | ((attr & 0x07) << 4)
+
+ windll.kernel32.SetConsoleTextAttribute(self.hconsole, attr)
+
+ def show_cursor(self,param):
+ self._csinfo.bVisible = 1
+ windll.kernel32.SetConsoleCursorInfo(self.hconsole, byref(self._csinfo))
+
+ def hide_cursor(self,param):
+ self._csinfo.bVisible = 0
+ windll.kernel32.SetConsoleCursorInfo(self.hconsole, byref(self._csinfo))
+
+ 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,
+ }
+ # Match either the escape sequence or text not containing escape sequence
+ ansi_tokens = re.compile(r'(?:\x1b\[([0-9?;]*)([a-zA-Z])|([^\x1b]+))')
+ def write(self, text):
+ try:
+ wlock.acquire()
+ if self._isatty:
+ for param, cmd, txt in self.ansi_tokens.findall(text):
+ if cmd:
+ cmd_func = self.ansi_command_table.get(cmd)
+ if cmd_func:
+ cmd_func(self, param)
+ else:
+ self.writeconsole(txt)
+ else:
+ # no support for colors in the console, just output the text:
+ # eclipse or msys may be able to interpret the escape sequences
+ self.stream.write(text)
+ finally:
+ wlock.release()
+
+ def writeconsole(self, txt):
+ chars_written = c_ulong()
+ writeconsole = windll.kernel32.WriteConsoleA
+ if isinstance(txt, _type):
+ writeconsole = windll.kernel32.WriteConsoleW
+
+ # MSDN says that there is a shared buffer of 64 KB for the console
+ # writes. Attempt to not get ERROR_NOT_ENOUGH_MEMORY, see waf issue #746
+ done = 0
+ todo = len(txt)
+ chunk = 32<<10
+ while todo != 0:
+ doing = min(chunk, todo)
+ buf = txt[done:done+doing]
+ r = writeconsole(self.hconsole, buf, doing, byref(chars_written), None)
+ if r == 0:
+ chunk >>= 1
+ continue
+ done += doing
+ todo -= doing
+
+
+ def fileno(self):
+ return self.stream.fileno()
+
+ def flush(self):
+ pass
+
+ def isatty(self):
+ return self._isatty
+
+ if sys.stdout.isatty() or sys.stderr.isatty():
+ handle = sys.stdout.isatty() and STD_OUTPUT_HANDLE or STD_ERROR_HANDLE
+ console = windll.kernel32.GetStdHandle(handle)
+ sbinfo = CONSOLE_SCREEN_BUFFER_INFO()
+ def get_term_cols():
+ windll.kernel32.GetConsoleScreenBufferInfo(console, byref(sbinfo))
+ # Issue 1401 - the progress bar cannot reach the last character
+ return sbinfo.Size.X - 1
+
+# just try and see
+try:
+ import struct, fcntl, termios
+except ImportError:
+ pass
+else:
+ if (sys.stdout.isatty() or sys.stderr.isatty()) and os.environ.get('TERM', '') not in ('dumb', 'emacs'):
+ FD = sys.stdout.isatty() and sys.stdout.fileno() or sys.stderr.fileno()
+ def fun():
+ return struct.unpack("HHHH", fcntl.ioctl(FD, termios.TIOCGWINSZ, struct.pack("HHHH", 0, 0, 0, 0)))[1]
+ try:
+ fun()
+ except Exception as e:
+ pass
+ else:
+ get_term_cols = fun
+