Gist by paste.py @ 2015-03-16 22:56:36.717214

fuck.py

#!/usr/bin/env python
# -*- encoding: utf-8 -*-
# Author: Yifu Yu <root@jackyyf.com>

import math
import re
import sys

deg2rad = lambda deg : deg / 180.0 * math.pi

class Dot(object):

    def __init__(self, x, y):
        self.x = x
        self.y = y

    def translate(self, dx, dy):
        self.x += dx
        self.y += dy

    def len(self):
        return math.sqrt(self.x * self.x + self.y * self.y)

    def deg(self):
        return math.atan2(self.y, self.x)

    def rotate(self, deg):
        clen = self.len()
        if clen < 1e-8:
            # AT DOT (0, 0), DO NOT ROTATE
            return
        cdeg = self.deg() + deg2rad(deg)
        self.x = math.cos(cdeg) * clen
        self.y = math.sin(cdeg) * clen
        # Floating error confirmation.
        assert abs(self.len() - clen) < 1e-8

    def xy(self):
        return self.x, self.y

class DrawObjects(object):
    def draw(self):
        print('{:.13f} {:.13f} moveto'.format(*self.dots[0].xy()))
        for dot in self.dots[1:]:
            print('{:.13f} {:.13f} lineto'.format(*dot.xy()))
        print('stroke')

    def translate(self, dx, dy):
        for d in self.dots:
            d.translate(dx, dy)

    def rotate(self, deg):
        for d in self.dots:
            d.rotate(deg)

class Line(DrawObjects):
    def __init__(self, x0, y0, x1, y1):
        self.dots = [Dot(x0, y0), Dot(x1, y1)]

class Rectangle(DrawObjects):
    def __init__(self, x, y, w, h):
        self.dots = [Dot(x, y), Dot(x + w, y), Dot(x + w, y + h), Dot(x, y + h), Dot(x, y)]

commands = map(lambda s: s.split(), re.compile('\((.*?)\)').findall(sys.stdin.read()))

ops = list()

print('%!PS-Adobe-3.1')

for command in commands:
    if command[0] == 'line':
        l = Line(*map(float, command[1:]))
        while ops:
            op = ops.pop()
            if op[0] == 'translate':
                x, y = float(op[1]), float(op[2])
                l.translate(x, y)
            elif op[0] == 'rotate':
                deg = float(op[1])
                l.rotate(deg)
            else:
                print('WTF', file=sys.stderr)
                sys.exit(233)
        l.draw()
    elif command[0] == 'rect':
        r = Rectangle(*map(float, command[1:]))
        while ops:
            op = ops.pop()
            if op[0] == 'translate':
                x, y = float(op[1]), float(op[2])
                r.translate(x, y)
            elif op[0] == 'rotate':
                deg = float(op[1])
                r.rotate(deg)
            else:
                print('WTF', file=sys.stderr)
                sys.exit(233)
        r.draw()
    elif command[0] == 'translate':
        ops.append(command)
    elif command[0] == 'rotate':
        ops.append(command)
    elif command[0] == 'color':
        r, g, b = map(float, command[1:])
        print('{:.13f} {:.13f} {:.13f} setrgbcolor'.format(r, g, b))
    elif command[0] == 'linewidth':
        w = float(command[1])
        print('{:.13f} setlinewidth'.format(w))
    else:
        print('Syntax Error: Unknown command {}'.format(command[0]), file=sys.stderr)
        sys.exit(233)

print('showpage')