mirror of
https://git.lyx.org/repos/lyx.git
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296632a2c3
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8673 a592a061-630c-0410-9148-cb99ea01b6c8
357 lines
9.6 KiB
Python
357 lines
9.6 KiB
Python
# This file is part of lyx2lyx
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# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2002-2004 Dekel Tsur <dekel@lyx.org>, José Matos <jamatos@lyx.org>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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import string
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import re
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def check_token(line, token):
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if line[:len(token)] == token:
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return 1
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return 0
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# We need to check that the char after the token is space, but I think
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# we can ignore this
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def find_token(lines, token, start, end = 0):
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if end == 0:
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end = len(lines)
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m = len(token)
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for i in xrange(start, end):
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if lines[i][:m] == token:
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return i
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return -1
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def find_token2(lines, token, start, end = 0):
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if end == 0:
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end = len(lines)
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for i in xrange(start, end):
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x = string.split(lines[i])
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if len(x) > 0 and x[0] == token:
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return i
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return -1
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def find_tokens(lines, tokens, start, end = 0):
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if end == 0:
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end = len(lines)
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for i in xrange(start, end):
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line = lines[i]
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for token in tokens:
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if line[:len(token)] == token:
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return i
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return -1
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def find_re(lines, rexp, start, end = 0):
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if end == 0:
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end = len(lines)
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for i in xrange(start, end):
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if rexp.match(lines[i]):
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return i
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return -1
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def find_token_backwards(lines, token, start):
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m = len(token)
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for i in xrange(start, -1, -1):
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line = lines[i]
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if line[:m] == token:
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return i
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return -1
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def find_tokens_backwards(lines, tokens, start):
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for i in xrange(start, -1, -1):
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line = lines[i]
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for token in tokens:
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if line[:len(token)] == token:
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return i
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return -1
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def get_value(lines, token, start, end = 0):
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i = find_token2(lines, token, start, end)
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if i == -1:
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return ""
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if len(string.split(lines[i])) > 1:
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return string.split(lines[i])[1]
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else:
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return ""
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def del_token(lines, token, i, j):
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k = find_token2(lines, token, i, j)
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if k == -1:
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return j
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else:
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del lines[k]
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return j-1
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# Finds the paragraph that contains line i.
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def get_paragraph(lines, i):
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while i != -1:
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i = find_tokens_backwards(lines, ["\\end_inset", "\\layout"], i)
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if i == -1: return -1
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if check_token(lines[i], "\\layout"):
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return i
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i = find_beginning_of_inset(lines, i)
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return -1
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# Finds the paragraph after the paragraph that contains line i.
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def get_next_paragraph(lines, i):
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while i != -1:
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i = find_tokens(lines, ["\\begin_inset", "\\layout", "\\end_float", "\\the_end"], i)
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if not check_token(lines[i], "\\begin_inset"):
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return i
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i = find_end_of_inset(lines, i)
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return -1
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def find_end_of(lines, i, start_token, end_token):
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count = 1
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n = len(lines)
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while i < n:
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i = find_tokens(lines, [end_token, start_token], i+1)
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if check_token(lines[i], start_token):
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count = count+1
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else:
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count = count-1
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if count == 0:
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return i
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return -1
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# Finds the matching \end_inset
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def find_beginning_of(lines, i, start_token, end_token):
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count = 1
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while i > 0:
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i = find_tokens_backwards(lines, [start_token, end_token], i-1)
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if check_token(lines[i], end_token):
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count = count+1
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else:
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count = count-1
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if count == 0:
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return i
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return -1
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# Finds the matching \end_inset
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def find_end_of_inset(lines, i):
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return find_end_of(lines, i, "\\begin_inset", "\\end_inset")
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# Finds the matching \end_inset
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def find_beginning_of_inset(lines, i):
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return find_beginning_of(lines, i, "\\begin_inset", "\\end_inset")
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def find_end_of_tabular(lines, i):
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return find_end_of(lines, i, "<lyxtabular", "</lyxtabular")
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def get_tabular_lines(lines, i):
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result = []
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i = i+1
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j = find_end_of_tabular(lines, i)
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if j == -1:
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return []
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while i <= j:
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if check_token(lines[i], "\\begin_inset"):
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i = find_end_of_inset(lines, i)+1
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else:
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result.append(i)
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i = i+1
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return result
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def is_nonempty_line(line):
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return line != " "*len(line)
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def find_nonempty_line(lines, start, end = 0):
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if end == 0:
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end = len(lines)
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for i in xrange(start, end):
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if is_nonempty_line(lines[i]):
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return i
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return -1
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##
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# Tools for file reading
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#
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def read_file(header, body, opt):
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"""Reads a file into the header and body parts"""
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preamble = 0
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while 1:
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line = opt.input.readline()
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if not line:
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opt.error("Invalid LyX file.")
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line = line[:-1]
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if check_token(line, '\\begin_preamble'):
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preamble = 1
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if check_token(line, '\\end_preamble'):
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preamble = 0
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if not preamble:
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line = string.strip(line)
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if not line and not preamble:
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break
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header.append(line)
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while 1:
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line = opt.input.readline()
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if not line:
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break
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body.append(line[:-1])
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def write_file(header, body, opt):
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for line in header:
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opt.output.write(line+"\n")
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opt.output.write("\n")
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for line in body:
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opt.output.write(line+"\n")
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##
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# lyx version
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#
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original_version = re.compile(r"\#LyX (\S*)")
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def read_version(header):
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for line in header:
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if line[0] != "#":
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return None
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result = original_version.match(line)
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if result:
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return result.group(1)
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return None
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def set_version(lines, version):
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lines[0] = "#LyX %s created this file. For more info see http://www.lyx.org/" % version
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if lines[1][0] == '#':
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del lines[1]
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##
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# file format version
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#
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format_re = re.compile(r"(\d)[\.,]?(\d\d)")
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fileformat = re.compile(r"\\lyxformat\s*(\S*)")
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lst_ft = [210, 215, 216, 217, 218, 220, 221, 223, 224, 225, 226, 227, 228, 229,
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230, 231, 232]
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format_relation = [("0_10", [210], ["0.10.7","0.10"]),
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("0_12", [215], ["0.12","0.12.1","0.12"]),
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("1_0_0", [215], ["1.0.0","1.0"]),
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("1_0_1", [215], ["1.0.1","1.0.2","1.0.3","1.0.4", "1.1.2","1.1"]),
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("1_1_4", [215], ["1.1.4","1.1"]),
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("1_1_5", [216], ["1.1.5","1.1.5fix1","1.1.5fix2","1.1"]),
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("1_1_6", [217], ["1.1.6","1.1.6fix1","1.1.6fix2","1.1"]),
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("1_1_6fix3", [218], ["1.1.6fix3","1.1.6fix4","1.1"]),
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("1_2", [220], ["1.2.0","1.2.1","1.2.3","1.2.4","1.2"]),
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("1_3", [221], ["1.3.0","1.3.1","1.3.2","1.3.3","1.3.4","1.3"]),
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("1_4", [223,224,225,226,227,228,229,230,231,232], ["1.4.0cvs","1.4"])]
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def lyxformat(format, opt):
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result = format_re.match(format)
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if result:
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format = int(result.group(1) + result.group(2))
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else:
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opt.error(str(format) + ": " + "Invalid LyX file.")
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if format in lst_ft:
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return format
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opt.error(str(format) + ": " + "Format no supported.")
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return None
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def read_format(header, opt):
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for line in header:
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result = fileformat.match(line)
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if result:
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return lyxformat(result.group(1), opt)
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else:
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opt.error("Invalid LyX File.")
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return None
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def set_format(lines, number):
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if int(number) <= 217:
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number = float(number)/100
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i = find_token(lines, "\\lyxformat", 0)
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lines[i] = "\\lyxformat %s" % number
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def get_end_format():
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return format_relation[-1:][0][1][-1:][0]
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def chain(opt, initial_version):
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""" This is where all the decisions related with the convertion are taken"""
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format = opt.format
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if opt.start:
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if opt.start != format:
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opt.warning("%s: %s %s" % ("Proposed file format and input file formats do not match:", opt.start, format))
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else:
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opt.start = format
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if not opt.end:
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opt.end = get_end_format()
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correct_version = 0
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for rel in format_relation:
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if initial_version in rel[2]:
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if format in rel[1]:
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initial_step = rel[0]
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correct_version = 1
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break
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if not correct_version:
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if format <= 215:
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opt.warning("Version does not match file format, discarding it.")
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for rel in format_relation:
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if format in rel[1]:
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initial_step = rel[0]
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break
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else:
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# This should not happen, really.
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opt.error("Format not supported.")
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# Find the final step
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for rel in format_relation:
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if opt.end in rel[1]:
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final_step = rel[0]
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break
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else:
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opt.error("Format not supported.")
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# Convertion mode, back or forth
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steps = []
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if (initial_step, opt.start) < (final_step, opt.end):
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mode = "convert"
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first_step = 1
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for step in format_relation:
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if initial_step <= step[0] <= final_step:
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if first_step and len(step[1]) == 1:
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first_step = 0
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continue
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steps.append(step[0])
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else:
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mode = "revert"
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relation_format = format_relation
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relation_format.reverse()
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last_step = None
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for step in relation_format:
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if final_step <= step[0] <= initial_step:
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steps.append(step[0])
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last_step = step
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if last_step[1][-1] == opt.end:
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steps.pop()
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return mode, steps
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