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#!/usr/bin/env python3
# Copyright (c) 2009, 2010, 2011, 2013, 2017, 2020 Nicira, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at:
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import getopt
import sys
def dot2pic(src, dst):
scale = 1.0
while True:
line = src.readline()
if not line:
break
words = line.split()
command = words[0]
if command == 'graph':
scale = float(words[1])
elif command == 'node':
name = words[1]
x = float(words[2])
y = float(words[3])
width = float(words[4])
height = float(words[5])
label, style, shape, color, fillcolor = words[6:11]
x *= scale
y *= scale
width *= scale
height *= scale
dst.write("linethick = %f;\n" % (0.5 if style == 'bold' else 1.0))
dst.write('box at %f,%f wid %f height %f "%s"\n'
% (x, y, width, height, name))
if style == 'bold':
inset = 2.0 / 72.0
width -= inset * 2
height -= inset * 2
dst.write("box at %f,%f wid %f height %f\n"
% (x, y, width, height))
elif command == 'edge':
tail = words[1]
head = words[2]
n = int(words[3])
# Extract x,y coordinates.
words = words[4:]
xy = []
for i in range(n):
x = float(words[0]) * scale
y = float(words[1]) * scale
words = words[2:]
xy.append((x, y))
# Extract style and color from end of words.
style, color = words[-2:]
words = words[:-2]
# If there's anything left, that's the label.
if words:
xl = float(words[-2]) * scale
yl = float(words[-1]) * scale
label = ' '.join(words[:-2])
if label.startswith('"') and label.endswith('"'):
label = label[1:-1]
else:
label = None
dst.write("linethick = %f;\n"
% (0.5 if style == 'dotted' else 1.0))
dst.write("spline -> from %f,%f" % xy[0])
for x, y in xy:
dst.write(" to %f,%f" % (x, y))
dst.write('\n')
if label:
dst.write('"%s" at %f,%f\n' % (label, xl, yl))
elif command == 'stop':
break
else:
sys.stderr.write("%s\n" % command)
assert False
options, args = getopt.gnu_getopt(sys.argv[1:], 'f:', [])
font_scale = 0
for key, value in options:
if key == '-f':
font_scale = int(value)
else:
raise False
if font_scale:
print(".ps %+d" % -font_scale)
print(".PS")
print("linethick = 1;")
if args:
for arg in args:
dot2pic(open(arg), sys.stdout)
else:
dot2pic(sys.stdin, sys.stdout)
if font_scale:
print(".ps %+d" % font_scale)
print(".PE")
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