lib/lyx2lyx/lyxconvert_224.py

   1 # This file is part of lyx2lyx
   2 # Copyright (C) 2003 José Matos <jamatos@fep.up.pt>
   3 #
   4 # This program is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU General Public License
   6 # as published by the Free Software Foundation; either version 2
   7 # of the License, or (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  17
  18 import re
  19 from parser_tools import find_token, find_tokens, find_end_of_inset, find_end_of
  20 from sys import stderr
  21 from string import replace, split, find, replace, strip, join
  22
  23 def add_end_layout(lines):
  24     i = find_token(lines, '\\layout', 0)
  25
  26     if i == -1:
  27         return
  28
  29     i = i + 1
  30     struct_stack = ["\\layout"]
  31     while 1:
  32         i = find_tokens(lines, ["\\begin_inset", "\\end_inset", "\\layout",
  33                                 "\\begin_deeper", "\\end_deeper", "\\the_end"], i)
  34
  35         token = split(lines[i])[0]
  36
  37         if token == "\\begin_inset":
  38             struct_stack.append(token)
  39             i = i + 1
  40             continue
  41
  42         if token == "\\end_inset":
  43             tail = struct_stack.pop()
  44             if tail == "\\layout":
  45                 lines.insert(i,"\\end_layout")
  46                 i = i + 1
  47                 #Check if it is the correct tag
  48                 struct_stack.pop()
  49             i = i + 1
  50             continue
  51
  52         if token == "\\layout":
  53             tail = struct_stack.pop()
  54             if tail == token:
  55                 lines.insert(i,"\\end_layout")
  56                 i = i + 2
  57             else:
  58                 struct_stack.append(tail)
  59                 i = i + 1
  60             struct_stack.append(token)
  61             continue
  62
  63         if token == "\\begin_deeper" or token == "\\end_deeper":
  64             lines.insert(i,"\\end_layout")
  65             i = i + 2
  66             continue
  67
  68         #case \end_document
  69         lines.insert(i, "\\end_layout")
  70         return
  71
  72 def layout2begin_layout(lines):
  73     i = 0
  74     while 1:
  75         i = find_token(lines, '\\layout', i)
  76         if i == -1:
  77             return
  78
  79         lines[i] = replace(lines[i], '\\layout', '\\begin_layout')
  80         i = i + 1
  81
  82 def valignment_middle(lines, start, end):
  83     for i in range(start, end):
  84         if re.search('^<(column|cell) .*valignment="center".*>$', lines[i]):
  85             lines[i] = replace(lines[i], 'valignment="center"', 'valignment="middle"')
  86
  87 def table_valignment_middle(lines):
  88     i = 0
  89     while 1:
  90         i = find_token(lines, '\\begin_inset  Tabular', i)
  91         if i == -1:
  92             return
  93         j = find_end_of_inset(lines, i + 1)
  94         if j == -1:
  95             #this should not happen
  96             valignment_middle(lines, i + 1, len(lines))
  97             return
  98         valignment_middle(lines, i + 1, j)
  99         i = j + 1
 100
 101 def end_document(lines):
 102     i = find_token(lines, "\\the_end", 0)
 103     if i == -1:
 104         lines.append("\\end_document")
 105         return
 106     lines[i] = "\\end_document"
 107
 108
 109 def convert_minipage(lines):
 110     """ Convert minipages to the box inset.
 111     We try to use the same order of arguments as lyx does.
 112     """
 113     pos = ["t","c","b"]
 114     inner_pos = ["c","t","b","s"]
 115
 116     i = 0
 117     while 1:
 118         i = find_token(lines, "\\begin_inset Minipage", i)
 119         if i == -1:
 120             return
 121
 122         lines[i] = "\\begin_inset Frameless"
 123         i = i + 1
 124
 125         # convert old to new position using the pos list
 126         if lines[i][:8] == "position":
 127             lines[i] = 'position "%s"' % pos[int(lines[i][9])]
 128         else:
 129             lines.insert(i, 'position "%s"' % pos[0])
 130         i = i + 1
 131
 132         lines.insert(i, 'hor_pos "c"')
 133         i = i + 1
 134         lines.insert(i, 'has_inner_box 1')
 135         i = i + 1
 136
 137         # convert the inner_position
 138         if lines[i][:14] == "inner_position":
 139             lines[i] = 'inner_pos "%s"' %  inner_pos[int(lines[i][15])]
 140         else:
 141             lines.insert('inner_pos "%s"' % inner_pos[0])
 142         i = i + 1
 143
 144         # We need this since the new file format has a height and width
 145         # in a different order.
 146         if lines[i][:6] == "height":
 147             height = lines[i][6:]
 148             # test for default value of 221 and convert it accordingly
 149             if height == ' "0pt"':
 150                 height = ' "1pt"'
 151             del lines[i]
 152         else:
 153             height = ' "1pt"'
 154
 155         if lines[i][:5] == "width":
 156             width = lines[i][5:]
 157             del lines[i]
 158         else:
 159             width = ' "0"'
 160
 161         lines.insert(i, 'use_parbox 0')
 162         i = i + 1
 163         lines.insert(i, 'width' + width)
 164         i = i + 1
 165         lines.insert(i, 'special "none"')
 166         i = i + 1
 167         lines.insert(i, 'height' + height)
 168         i = i + 1
 169         lines.insert(i, 'height_special "totalheight"')
 170         i = i + 1
 171
 172 ##
 173 # Convert line and page breaks
 174 # Old:
 175 #\layout Standard
 176 #\line_top \line_bottom \pagebreak_top \pagebreak_bottom \added_space_top xxx \added_space_bottom yyy
 177 #0
 178 #
 179 # New:
 180 #\begin layout Standard
 181 #
 182 #\newpage
 183 #
 184 #\lyxline
 185 #\begin_inset VSpace xxx
 186 #\end_inset
 187 #
 188 #\end_layout
 189 #\begin_layout Standard
 190 #
 191 #0
 192 #\end_layout
 193 #\begin_layout Standard
 194 #
 195 #\begin_inset VSpace xxx
 196 #\end_inset
 197 #\lyxline
 198 #
 199 #\newpage
 200 #
 201 #\end_layout
 202
 203 def convert_breaks(lines):
 204     i = 0
 205     while 1:
 206         i = find_token(lines, "\\begin_layout", i)
 207         if i == -1:
 208             return
 209         i = i + 1
 210         line_top   = find(lines[i],"\\line_top")
 211         line_bot   = find(lines[i],"\\line_bottom")
 212         pb_top     = find(lines[i],"\\pagebreak_top")
 213         pb_bot     = find(lines[i],"\\pagebreak_bottom")
 214         vspace_top = find(lines[i],"\\added_space_top")
 215         vspace_bot = find(lines[i],"\\added_space_bottom")
 216
 217         if line_top == -1 and line_bot == -1 and pb_bot == -1 and pb_top == -1 and vspace_top == -1 and vspace_bot == -1:
 218             continue
 219
 220         for tag in "\\line_top", "\\line_bottom", "\\pagebreak_top", "\\pagebreak_bottom":
 221             lines[i] = replace(lines[i], tag, "")
 222
 223         if vspace_top != -1:
 224             # the position could be change because of the removal of other
 225             # paragraph properties above
 226             vspace_top = find(lines[i],"\\added_space_top")
 227             tmp_list = split(lines[i][vspace_top:])
 228             vspace_top_value = tmp_list[1]
 229             lines[i] = lines[i][:vspace_top] + join(tmp_list[2:])
 230
 231         if vspace_bot != -1:
 232             # the position could be change because of the removal of other
 233             # paragraph properties above
 234             vspace_bot = find(lines[i],"\\added_space_bottom")
 235             tmp_list = split(lines[i][vspace_bot:])
 236             vspace_bot_value = tmp_list[1]
 237             lines[i] = lines[i][:vspace_bot] + join(tmp_list[2:])
 238
 239         lines[i] = strip(lines[i])
 240         i = i + 1
 241
 242         #  Create an empty paragraph for line and page break that belong
 243         # above the paragraph
 244         if pb_top !=-1 or line_top != -1 or vspace_bot != -1:
 245
 246             paragraph_above = ['','\\begin_layout Standard','','']
 247
 248             if pb_top != -1:
 249                 paragraph_above.extend(['\\newpage ',''])
 250
 251             if vspace_top != -1:
 252                 paragraph_above.extend(['\\begin_inset VSpace ' + vspace_top_value,'\\end_inset ','',''])
 253
 254             if line_top != -1:
 255                 paragraph_above.extend(['\\lyxline ',''])
 256
 257             paragraph_above.extend(['\\end_layout',''])
 258
 259             #inset new paragraph above the current paragraph
 260             lines[i-2:i-2] = paragraph_above
 261             i = i + len(paragraph_above)
 262
 263         # Ensure that nested style are converted later.
 264         k = find_end_of(lines, i, "\\begin_layout", "\\end_layout")
 265
 266         if k == -1:
 267             return
 268
 269         if pb_top !=-1 or line_top != -1 or vspace_bot != -1:
 270
 271             paragraph_bellow = ['','\\begin_layout Standard','','']
 272
 273             if line_bot != -1:
 274                 paragraph_bellow.extend(['\\lyxline ',''])
 275
 276             if vspace_bot != -1:
 277                 paragraph_bellow.extend(['\\begin_inset VSpace ' + vspace_bot_value,'\\end_inset ','',''])
 278
 279             if pb_bot != -1:
 280                 paragraph_bellow.extend(['\\newpage ',''])
 281
 282             paragraph_bellow.extend(['\\end_layout',''])
 283
 284             #inset new paragraph above the current paragraph
 285             lines[k + 1: k + 1] = paragraph_bellow
 286
 287 def convert(header, body):
 288     add_end_layout(body)
 289     layout2begin_layout(body)
 290     end_document(body)
 291     table_valignment_middle(body)
 292     convert_minipage(body)
 293     convert_breaks(body)
 294
 295 if __name__ == "__main__":
 296     pass