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118 lines
3.3 KiB
Python
118 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
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"""
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Miscellaneous helper functions.
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The formatter for ANSI colored console output is heavily based on Pygments
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terminal colorizing code, originally by Georg Brandl.
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"""
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import os
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def gettermsize():
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def ioctl_GWINSZ(fd):
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try:
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import fcntl, termios, struct # noqa
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cr = struct.unpack('hh', fcntl.ioctl(fd, termios.TIOCGWINSZ,
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'1234'))
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except:
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return None
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return cr
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cr = ioctl_GWINSZ(0) or ioctl_GWINSZ(1) or ioctl_GWINSZ(2)
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if not cr:
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try:
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fd = os.open(os.ctermid(), os.O_RDONLY)
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cr = ioctl_GWINSZ(fd)
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os.close(fd)
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except:
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pass
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if not cr:
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try:
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cr = (os.environ['LINES'], os.environ['COLUMNS'])
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except:
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cr = (25, 80)
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return int(cr[1]), int(cr[0])
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class _Colorizer(object):
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def __init__(self):
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esc = "\x1b["
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self.codes = {}
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self.codes[""] = ""
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self.codes["reset"] = esc + "39;49;00m"
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self.codes["bold"] = esc + "01m"
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self.codes["faint"] = esc + "02m"
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self.codes["standout"] = esc + "03m"
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self.codes["underline"] = esc + "04m"
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self.codes["blink"] = esc + "05m"
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self.codes["overline"] = esc + "06m"
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dark_colors = ["black", "darkred", "darkgreen", "brown", "darkblue",
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"purple", "teal", "lightgray"]
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light_colors = ["darkgray", "red", "green", "yellow", "blue",
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"fuchsia", "turquoise", "white"]
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x = 30
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for d, l in zip(dark_colors, light_colors):
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self.codes[d] = esc + "%im" % x
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self.codes[l] = esc + "%i;01m" % x
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x += 1
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del d, l, x
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self.codes["darkteal"] = self.codes["turquoise"]
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self.codes["darkyellow"] = self.codes["brown"]
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self.codes["fuscia"] = self.codes["fuchsia"]
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self.codes["white"] = self.codes["bold"]
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def reset_color(self):
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return self.codes["reset"]
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def colorize(self, color_key, text):
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return self.codes[color_key] + text + self.codes["reset"]
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def ansiformat(self, attr, text):
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"""
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Format ``text`` with a color and/or some attributes::
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color normal color
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*color* bold color
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_color_ underlined color
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+color+ blinking color
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"""
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result = []
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if attr[:1] == attr[-1:] == '+':
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result.append(self.codes['blink'])
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attr = attr[1:-1]
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if attr[:1] == attr[-1:] == '*':
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result.append(self.codes['bold'])
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attr = attr[1:-1]
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if attr[:1] == attr[-1:] == '_':
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result.append(self.codes['underline'])
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attr = attr[1:-1]
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result.append(self.codes[attr])
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result.append(text)
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result.append(self.codes['reset'])
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return ''.join(result)
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colorizer = _Colorizer()
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def make_colorizer(color):
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"""Creates a function that colorizes text with the given color.
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For example:
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green = make_colorizer('darkgreen')
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red = make_colorizer('red')
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Then, you can use:
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print "It's either " + green('OK') + ' or ' + red('Oops')
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"""
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def inner(text):
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return colorizer.colorize(color, text)
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return inner
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