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73 lines
2.2 KiB
Python
73 lines
2.2 KiB
Python
# file fig_copy.py
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# This file is part of LyX, the document processor.
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# Licence details can be found in the file COPYING.
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#
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# \author Angus Leeming
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# \author Bo Peng
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#
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# Full author contact details are available in file CREDITS
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# Usage:
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# fig_copy.py <from file> <to file>
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# This script will copy an XFIG .fig file "$1" to "$2". In the process,
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# it will modify the contents of the .fig file so that the names of any
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# picture files that are stored as relative paths are replaced
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# with the absolute path.
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import os, sys
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if len(sys.argv) != 3:
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print ("Usage: fig_copy.py <from file> <to file>", file=sys.stderr)
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sys.exit(1)
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if not os.path.isfile(sys.argv[1]):
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print ("Unable to read", sys.argv[1], file=sys.stderr)
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sys.exit(1)
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from_dir = os.path.split(os.path.realpath(sys.argv[1]))[0]
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to_dir = os.path.split(os.path.realpath(sys.argv[2]))[0]
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# The work is trivial if "to" and "from" are in the same directory.
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if from_dir == to_dir:
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import shutil
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try:
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shutil.copy(sys.argv[1], sys.argv[2])
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except:
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sys.exit(1)
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sys.exit(0)
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# Ok, they're in different directories. The .fig file must be modified.
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import re
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# We're looking for a line of text that defines an entry of
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# type '2' (a polyline), subtype '5' (an external picture file).
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# The line has 14 other data fields.
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patternline = re.compile(br'^\s*2\s+5(\s+[0-9.+-]+){14}\s*$')
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emptyline = re.compile(br'^\s*$')
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commentline = re.compile(br'^\s*#.*$')
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# we allow space in path name
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figureline = re.compile(br'^(\s*[01]\s*)(\S[\S ]*)(\s*)$')
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input = open(sys.argv[1], 'rb')
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output = open(sys.argv[2], 'wb')
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# path in the fig is relative to this path
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os.chdir(from_dir)
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found = False
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for line in input:
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if found and not emptyline.match(line) and not commentline.match(line):
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# The contents of the final line containing the file name
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# are ' X <file name>', where X = 0 or 1.
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# We extract filename and replace it with the absolute filename.
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(pre, path, post) = figureline.match(line).groups()
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line = pre + os.path.realpath(path) + post
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found = False
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elif patternline.match(line):
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found = True
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output.write(line)
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input.close()
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output.close()
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