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Handle LaTeX layout, and collapse consecutive ERT insets
[lyx.git] / lib / lyx2lyx / lyxconvert_218.py
1 # This file is part of lyx2lyx
2 # Copyright (C) 2002 Dekel Tsur <dekel@lyx.org>
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
19 import sys,string,re
20 from parser_tools import *
21
22 floats = {
23     "footnote": ["\\begin_inset Foot",
24                  "collapsed true"],
25     "margin":   ["\\begin_inset Marginal",
26                  "collapsed true"],
27     "fig":      ["\\begin_inset Float figure",
28                  "placement htbp",
29                  "wide false",
30                  "collapsed false"],
31     "tab":      ["\\begin_inset Float table",
32                  "placement htbp",
33                  "wide false",
34                  "collapsed false"],
35     "alg":      ["\\begin_inset Float algorithm",
36                  "placement htbp",
37                  "wide false",
38                  "collapsed false"],
39     "wide-fig": ["\\begin_inset Float figure",
40                  "placement htbp",
41                  "wide true",
42                  "collapsed false"],
43     "wide-tab": ["\\begin_inset Float table",
44                  "placement htbp",
45                  "wide true",
46                  "collapsed false"]
47 }
48
49 def remove_oldfloat(lines, language):
50     i = 0
51     while 1:
52         i = find_token(lines, "\\begin_float", i)
53         if i == -1:
54             break
55         j = find_token(lines, "\\end_float", i+1)
56         floattype = string.split(lines[i])[1]
57         if not floats.has_key(floattype):
58             sys.stderr.write("Error! Unknown float type "+floattype+"\n")
59             floattype = "fig"
60
61         # skip \end_deeper tokens
62         i2 = i+1
63         while check_token(lines[i2], "\\end_deeper"):
64             i2 = i2+1
65         if i2 > i+1:
66             j2 = find_token(lines, "\\layout", j+1)
67             lines[j2:j2] = ["\\end_deeper "]*(i2-(i+1))
68
69         start = floats[floattype]+[""]
70         mid = lines[i2:j]
71         end = ["\\end_inset ",
72                "\\family default ",
73                "\\series default ",
74                "\\shape default ",
75                "\\size default ",
76                "\\emph default ",
77 #              "\\numeric default ",
78                "\\bar default ",
79                "\\noun default ",
80                "\\color default "
81                "\\lang %s " % language]
82         # It isn't nice to always put all the '\xxx default' statements,
83         # but it doesn't hurt
84         lines[i:j+1]= start+mid+end
85
86         i = i+1
87
88 def remove_oldminipage(lines):
89     i = 0
90     flag = 0
91     while 1:
92         i = find_token(lines, "\\pextra_type 2", i)
93         if i == -1:
94             break
95         hfill = 0
96         line = string.split(lines[i])
97         if line[4] == "\\pextra_hfill":
98             hfill = 1
99             line[4:6] = []
100         if line[4] == "\\pextra_start_minipage":
101             # We just ignore this
102             line[4:6] = []
103
104         position = line[3]
105         width = line[5]
106         if line[4] == "\\pextra_widthp":
107             width = line[5]+"col%"
108         
109
110         start = ["\\begin_inset Minipage",
111                  "position " + position,
112                  "inner_position 0",
113                  'height "0pt"',
114                  'width "%s"' % width,
115                  "collapsed false"
116                  ]
117         if flag:
118             flag = 0
119             if hfill:
120                 start = ["","\hfill",""]+start
121         else:
122             start = ["\\layout Standard"] + start
123
124         j = find_token_backwards(lines,"\\layout", i-1)
125         j0 = j
126         mid = lines[j:i]
127
128         j = find_tokens(lines, ["\\layout", "\\end_float"], i+1)
129         # j can be -1, but this is still ok
130         mid = mid+lines[i+1:j]
131
132         count = 0
133         while 1:
134             # collect more paragraphs to the minipage
135             count = count+1
136             if j == -1 or not check_token(lines[j], "\\layout"):
137                 break
138             i = find_tokens(lines, ["\\layout", "\\pextra_type"], j+1)
139             if i == -1 or not check_token(lines[i], "\\pextra_type"):
140                 break
141             line = string.split(lines[i])
142             if line[4] == "\\pextra_hfill":
143                 line[4:6] = []
144             if line[4] == "\\pextra_start_minipage" and line[5] == "1":
145                 flag = 1
146                 break
147             j = find_token_backwards(lines,"\\layout", i-1)
148             mid = mid+lines[j:i]
149             j = find_tokens(lines, ["\\layout", "\\end_float"], i+1)
150             mid = mid+lines[i+1:j]
151
152         end = ["\\end_inset "]
153
154         lines[j0:j] = start+mid+end
155         i = i+1
156
157 def is_empty(lines):
158     return filter(is_nonempty_line, lines) == []
159
160 font_rexp =  re.compile(r"\\(family|series|shape|size|emph|numeric|bar|noun)")
161 ert_rexp = re.compile(r"\\begin_inset|.*\\SpecialChar")
162 spchar_rexp = re.compile(r"(.*)(\\SpecialChar.*)")
163 ert_begin = ["\\begin_inset ERT",
164              "status Collapsed",
165              "",
166              "\\layout Standard"]
167
168 def remove_oldert(lines):
169     i = 0
170     while 1:
171         i = find_tokens(lines, ["\\latex latex", "\\layout LaTeX"], i)
172         if i == -1:
173             break
174         j = find_tokens(lines, ["\\latex default", "\\layout", "\\end_float"],
175                         i+1)
176         if j == -1:
177             j = len(lines)-1
178         if check_token(lines[j], "\\layout"):
179             while j-1 >= 0 and check_token(lines[j-1], "\\begin_deeper"):
180                 j = j-1
181
182         # We need to remove insets, special chars & font commands from ERT text
183         new = []
184         new2 = []
185         if check_token(lines[i], "\\layout LaTeX"):
186             new = ["\layout Standard", "", ""]
187             # We have a problem with classes in which Standard is not the default layout!
188
189         k = i+1
190         while 1:
191             k2 = find_re(lines, ert_rexp, k, j)
192             inset = specialchar = 0
193             if k2 == -1:
194                 k2 = j
195             elif check_token(lines[k2], "\\begin_inset"):
196                 inset = 1
197             else:
198                 specialchar = 1
199                 mo = spchar_rexp.match(lines[k2])
200                 lines[k2] = mo.group(1)
201                 specialchar_str = mo.group(2)
202                 k2 = k2+1
203
204             tmp = []
205             for line in lines[k:k2]:
206                 if font_rexp.match(line):
207                     new2.append(line)
208                 else:
209                     tmp.append(line)
210
211             if is_empty(tmp):
212                 new = new+tmp
213             else:
214                 new = new+ert_begin+tmp+["\\end_inset ", ""]
215
216             if inset:
217                 k3 = find_token(lines, "\\end_inset", k2+1)
218                 new = new+[""]+lines[k2:k3+1]+["", ""]
219                 k = k3+1
220             elif specialchar:
221                 new = new+[specialchar_str]
222                 k = k2
223             else:
224                 break
225
226         new = new+new2
227         if not check_token(lines[j], "\\latex default"):
228             new = new+[""]+[lines[j]]
229         lines[i:j+1] = new
230         i = i+1
231
232 def is_ert_paragraph(lines, i):
233     i = find_nonempty_line(lines, i+1)
234     if not check_token(lines[i], "\\begin_inset ERT"):
235         return 0
236     j = find_token(lines, "\\end_inset", i)
237     k = find_nonempty_line(lines, j+1)
238     return check_token(lines[k], "\\layout")
239
240 def combine_ert(lines):
241     i = 0
242     while 1:
243         i = find_token(lines, "\\begin_inset ERT", i)
244         if i == -1:
245             break
246         j = find_token_backwards(lines,"\\layout", i-1)
247         count = 0
248         text = []
249         while is_ert_paragraph(lines, j):
250
251             count = count+1
252             i2 = find_token(lines, "\\layout", j+1)
253             k = find_token(lines, "\\end_inset", i2+1)
254             text = text+lines[i2:k]
255             j = find_token(lines, "\\layout", k+1)
256             if j == -1:
257                 break
258
259         if count >= 2:
260             lines[i+1:k] = text
261
262         i = i+1
263         
264 oldunits = ["pt", "cm", "in", "text%", "col%"]
265
266 def get_length(lines, name, start, end):
267     i = find_token(lines, name, start, end)
268     if i == -1:
269         return ""
270     x = string.split(lines[i])
271     return x[2]+oldunits[int(x[1])]
272
273 def append(x, token, value):
274     if value != "":
275         x.append("\t"+token+" "+value)
276
277 def remove_figinset(lines):
278     i = 0
279     while 1:
280         i = find_token(lines, "\\begin_inset Figure", i)
281         if i == -1:
282             break
283         j = find_token(lines, "\\end_inset", i+1)
284
285         lyxwidth = string.split(lines[i])[3]+"pt"
286         lyxheight = string.split(lines[i])[4]+"pt"
287
288         filename = get_value(lines, "file", i+1, j)
289
290         width = get_length(lines, "width", i+1, j)
291         # what does width=5 mean ?
292         height = get_length(lines, "height", i+1, j)
293         rotateAngle = get_value(lines, "angle", i+1, j)
294         if width == "" and height == "":
295             size_type = "0"
296         else:
297             size_type = "1"
298
299         flags = get_value(lines, "flags", i+1, j)
300         x = int(flags)%4
301         if x == 1:
302             display = "monochrome"
303         elif x == 2:
304             display = "gray"
305         else:
306             display = "color"
307
308         subcaptionText = get_value(lines, "subcaption", i+1, j)
309         if subcaptionText != "":
310             subcaptionText = '"'+subcaptionText+'"'
311         k = find_token(lines, "subfigure", i+1,j)
312         if k == -1:
313             subcaption = 0
314         else:
315             subcaption = 1
316
317         new = ["\\begin_inset Graphics FormatVersion 1"]
318         append(new, "filename", filename)
319         append(new, "display", display)
320         if subcaption:
321             new.append("\tsubcaption")
322         append(new, "subcaptionText", subcaptionText)
323         append(new, "size_type", size_type)
324         append(new, "width", width)
325         append(new, "height", height)
326         if rotateAngle != "":
327             new.append("\trotate")
328             append(new, "rotateAngle", rotateAngle)
329         new.append("\trotateOrigin center")
330         new.append("\tlyxsize_type 1")
331         append(new, "lyxwidth", lyxwidth)
332         append(new, "lyxheight", lyxheight)
333         new = new + ["\end_inset"]
334         lines[i:j+1] = new
335
336 def change_preamble(lines):
337     i = find_token(lines, "\\use_amsmath", 0)
338     if i == -1:
339         return
340     lines[i+1:i+1] = ["\\use_natbib 0",
341                       "\use_numerical_citations 0"]
342
343 def convert(header, body):
344     language = get_value(header, "\\language", 0)
345     if language == "":
346         language = "english"
347
348     change_preamble(header)
349     remove_oldert(body)
350     combine_ert(body)
351     remove_oldminipage(body)
352     remove_oldfloat(body, language)
353     remove_figinset(body)
354
355 if __name__ == "__main__":
356     pass