1 # This file is part of lyx2lyx
2 # -*- coding: iso-8859-1 -*-
3 # Copyright (C) 2002-2004 Dekel Tsur <dekel@lyx.org>, José Matos <jamatos@lyx.org>
5 # This program is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU General Public License
7 # as published by the Free Software Foundation; either version 2
8 # of the License, or (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 from parser_tools import get_value, check_token, find_token,\
20 find_tokens, find_end_of, find_end_of_inset
28 version_lyx2lyx = "1.4.0cvs"
29 default_debug_level = 2
31 # Regular expressions used
32 format_re = re.compile(r"(\d)[\.,]?(\d\d)")
33 fileformat = re.compile(r"\\lyxformat\s*(\S*)")
34 original_version = re.compile(r"\#LyX (\S*)")
37 # file format information:
38 # file, supported formats, stable release versions
39 format_relation = [("0_10", [210], ["0.10.7","0.10"]),
40 ("0_12", [215], ["0.12","0.12.1","0.12"]),
41 ("1_0_0", [215], ["1.0.0","1.0"]),
42 ("1_0_1", [215], ["1.0.1","1.0.2","1.0.3","1.0.4", "1.1.2","1.1"]),
43 ("1_1_4", [215], ["1.1.4","1.1"]),
44 ("1_1_5", [216], ["1.1.5","1.1.5fix1","1.1.5fix2","1.1"]),
45 ("1_1_6", [217], ["1.1.6","1.1.6fix1","1.1.6fix2","1.1"]),
46 ("1_1_6fix3", [218], ["1.1.6fix3","1.1.6fix4","1.1"]),
47 ("1_2", [220], ["1.2.0","1.2.1","1.2.3","1.2.4","1.2"]),
48 ("1_3", [221], ["1.3.0","1.3.1","1.3.2","1.3.3","1.3.4","1.3.5","1.3"]),
49 ("1_4", range(223,242), ["1.4.0cvs","1.4"])]
53 " Returns a list with supported file formats."
55 for version in format_relation:
56 for format in version[1]:
57 if format not in formats:
58 formats.append(format)
63 " Returns the more recent file format available."
64 return format_relation[-1][1][-1]
67 def get_backend(textclass):
68 " For _textclass_ returns its backend."
69 if textclass == "linuxdoc" or textclass == "manpage":
71 if textclass[:7] == "docbook":
80 """This class carries all the information of the LyX file."""
81 def __init__(self, end_format = 0, input = "", output = "", error = "", debug = default_debug_level, try_hard = 0):
83 end_format: final format that the file should be converted. (integer)
84 input: the name of the input source, if empty resort to standard input.
85 output: the name of the output file, if empty use the standard output.
86 error: the name of the error file, if empty use the standard error.
87 debug: debug level, O means no debug, as its value increases be more verbose.
89 if input and input != '-':
90 self.input = self.open(input)
92 self.input = sys.stdin
94 self.output = open(output, "w")
96 self.output = sys.stdout
99 self.err = open(error, "w")
101 self.err = sys.stderr
104 self.try_hard = try_hard
107 self.end_format = self.lyxformat(end_format)
109 self.end_format = get_end_format()
111 self.backend = "latex"
112 self.textclass = "article"
117 def warning(self, message, debug_level= default_debug_level):
118 " Emits warning to self.error, if the debug_level is less than the self.debug."
119 if debug_level <= self.debug:
120 self.err.write(message + "\n")
123 def error(self, message):
124 " Emits a warning and exist incondicionally."
125 self.warning(message)
126 self.warning("Quiting.")
131 """Reads a file into the self.header and self.body parts, from self.input."""
135 line = self.input.readline()
137 self.error("Invalid LyX file.")
140 # remove '\r' from line's end, if present
141 if line[-1:] == '\r':
144 if check_token(line, '\\begin_preamble'):
146 if check_token(line, '\\end_preamble'):
150 line = string.strip(line)
152 if not line and not preamble:
155 self.header.append(line)
158 line = self.input.readline()
161 # remove '\r' from line's end, if present
162 if line[-2:-1] == '\r':
163 self.body.append(line[:-2])
165 self.body.append(line[:-1])
167 self.textclass = get_value(self.header, "\\textclass", 0)
168 self.backend = get_backend(self.textclass)
169 self.format = self.read_format()
170 self.language = get_value(self.header, "\\language", 0)
171 if self.language == "":
172 self.language = "english"
173 self.initial_version = self.read_version()
177 " Writes the LyX file to self.output."
181 for line in self.header:
182 self.output.write(line+"\n")
183 self.output.write("\n")
184 for line in self.body:
185 self.output.write(line+"\n")
188 def open(self, file):
189 """Transparently deals with compressed files."""
191 self.dir = os.path.dirname(os.path.abspath(file))
193 gzip.open(file).readline()
194 self.output = gzip.GzipFile("","wb",6,self.output)
195 return gzip.open(file)
200 def lyxformat(self, format):
201 " Returns the file format representation, an integer."
202 result = format_re.match(format)
204 format = int(result.group(1) + result.group(2))
206 self.error(str(format) + ": " + "Invalid LyX file.")
208 if format in formats_list():
211 self.error(str(format) + ": " + "Format not supported.")
215 def read_version(self):
216 """ Searchs for clues of the LyX version used to write the file, returns the
217 most likely value, or None otherwise."""
218 for line in self.header:
222 result = original_version.match(line)
224 return result.group(1)
228 def set_version(self):
229 " Set the header with the version used."
230 self.header[0] = "#LyX %s created this file. For more info see http://www.lyx.org/" % version_lyx2lyx
231 if self.header[1][0] == '#':
235 def read_format(self):
236 " Read from the header the fileformat of the present LyX file."
237 for line in self.header:
238 result = fileformat.match(line)
240 return self.lyxformat(result.group(1))
242 self.error("Invalid LyX File.")
246 def set_format(self):
247 " Set the file format of the file, in the header."
248 if self.format <= 217:
249 format = str(float(self.format)/100)
251 format = str(self.format)
252 i = find_token(self.header, "\\lyxformat", 0)
253 self.header[i] = "\\lyxformat %s" % format
256 def set_parameter(self, param, value):
257 " Set the value of the header parameter."
258 i = find_token(self.header, '\\' + param, 0)
260 self.warning(3, 'Parameter not found in the header: %s' % param)
262 self.header[i] = '\\%s %s' % (param, str(value))
266 "Convert from current (self.format) to self.end_format."
267 mode, convertion_chain = self.chain()
268 self.warning("convertion chain: " + str(convertion_chain), 3)
270 for step in convertion_chain:
271 steps = getattr(__import__("lyx_" + step), mode)
273 self.warning("Convertion step: %s - %s" % (step, mode), default_debug_level + 1)
275 self.error("The convertion to an older format (%s) is not implemented." % self.format)
277 multi_conv = len(steps) != 1
278 for version, table in steps:
280 (self.format >= version and mode == "convert") or\
281 (self.format <= version and mode == "revert"):
289 self.warning("An error ocurred in %s, %s" % (version, str(conv)),
291 if not self.try_hard:
294 self.warning("%lf: Elapsed time on %s" % (time.time() - init_t, str(conv)),
295 default_debug_level + 1)
297 self.format = version
298 if self.end_format == self.format:
303 """ This is where all the decisions related with the convertion are taken.
304 It returns a list of modules needed to convert the LyX file from
305 self.format to self.end_format"""
307 self.start = self.format
311 for rel in format_relation:
312 if self.initial_version in rel[2]:
314 initial_step = rel[0]
318 if not correct_version:
320 self.warning("Version does not match file format, discarding it.")
321 for rel in format_relation:
323 initial_step = rel[0]
326 # This should not happen, really.
327 self.error("Format not supported.")
329 # Find the final step
330 for rel in format_relation:
331 if self.end_format in rel[1]:
335 self.error("Format not supported.")
337 # Convertion mode, back or forth
339 if (initial_step, self.start) < (final_step, self.end_format):
342 for step in format_relation:
343 if initial_step <= step[0] <= final_step:
344 if first_step and len(step[1]) == 1:
347 steps.append(step[0])
350 relation_format = format_relation
351 relation_format.reverse()
354 for step in relation_format:
355 if final_step <= step[0] <= initial_step:
356 steps.append(step[0])
359 if last_step[1][-1] == self.end_format:
365 def get_toc(self, depth = 4):
366 " Returns the TOC of this LyX document."
367 paragraphs_filter = {'Title' : 0,'Chapter' : 1, 'Section' : 2, 'Subsection' : 3, 'Subsubsection': 4}
368 allowed_insets = ['Quotes']
369 allowed_parameters = '\\paragraph_spacing', '\\noindent', '\\align', '\\labelwidthstring', "\\start_of_appendix"
372 for section in paragraphs_filter.keys():
373 sections.append('\\begin_layout %s' % section)
378 i = find_tokens(self.body, sections, i)
382 j = find_end_of(self.body, i + 1, '\\begin_layout', '\\end_layout')
384 self.warning('Incomplete file.', 0)
387 section = string.split(self.body[i])[1]
388 if section[-1] == '*':
389 section = section[:-1]
394 # skip paragraph parameters
395 while not string.strip(self.body[k]) and string.split(self.body[k])[0] in allowed_parameters:
399 if check_token(self.body[k], '\\begin_inset'):
400 inset = string.split(self.body[k])[1]
401 end = find_end_of_inset(self.body, k)
402 if end == -1 or end > j:
403 self.warning('Malformed file.', 0)
405 if inset in allowed_insets:
406 par.extend(self.body[k: end+1])
409 par.append(self.body[k])
412 # trim empty lines in the end.
413 while string.strip(par[-1]) == '' and par:
416 toc_par.append(Paragraph(section, par))
423 class File(LyX_Base):
424 " This class reads existing LyX files."
425 def __init__(self, end_format = 0, input = "", output = "", error = "", debug = default_debug_level, try_hard = 0):
426 LyX_Base.__init__(self, end_format, input, output, error, debug, try_hard)
430 class NewFile(LyX_Base):
431 " This class is to create new LyX files."
432 def set_header(self, **params):
435 "#LyX xxxx created this file. For more info see http://www.lyx.org/",
439 "\\textclass article",
440 "\\language english",
441 "\\inputencoding auto",
442 "\\fontscheme default",
443 "\\graphics default",
444 "\\paperfontsize default",
445 "\\papersize default",
446 "\\paperpackage none",
447 "\\use_geometry false",
449 "\\cite_engine basic",
450 "\\use_bibtopic false",
451 "\\paperorientation portrait",
454 "\\paragraph_separation indent",
456 "\\quotes_language english",
460 "\\paperpagestyle default",
461 "\\tracking_changes false",
464 self.format = get_end_format()
466 self.set_parameter(param, params[param])
469 def set_body(self, paragraphs):
470 self.body.extend(['\\begin_body',''])
472 for par in paragraphs:
473 self.body.extend(par.asLines())
475 self.body.extend(['','\\end_body', '\\end_document'])
479 # unfinished implementation, it is missing the Text and Insets representation.
480 " This class represents the LyX paragraphs."
481 def __init__(self, name, body=[], settings = [], child = []):
483 name: paragraph name.
484 body: list of lines of body text.
485 child: list of paragraphs that descend from this paragraph.
489 self.settings = settings
493 " Converts the paragraph to a list of strings, representing it in the LyX file."
494 result = ['','\\begin_layout %s' % self.name]
495 result.extend(self.settings)
497 result.extend(self.body)
498 result.append('\\end_layout')
503 result.append('\\begin_deeper')
504 for node in self.child:
505 result.extend(node.asLines())
506 result.append('\\end_deeper')
512 " This class represents the LyX insets."
517 " This class represents simple chuncks of text."