Class: ODDB::Import::Rtf

Inherits:
Object
  • Object
show all
Defined in:
lib/oddb/import/rtf.rb

Constant Summary collapse

SYMBOLS = 
{ 
  0101 => "Α",
  0102 => "Β",
  0103 => "Χ",
  0104 => "Δ",
  0105 => "Ε",
  0110 => "Η",
  0240 => "€",
  0107 => "Γ",
  0301 => "ℑ",
  0111 => "Ι",
  0113 => "Κ",
  0114 => "Λ",
  0115 => "Μ",
  0116 => "Ν",
  0127 => "Ω",
  0117 => "Ο",
  0106 => "Φ",
  0120 => "Π",
  0131 => "Ψ",
  0302 => "ℜ",
  0122 => "Ρ",
  0123 => "Σ",
  0124 => "Τ",
  0121 => "Θ",
  0125 => "Υ",
  0241 => "ϒ",
  0130 => "Ξ",
  0132 => "Ζ",
  0300 => "ℵ",
  0141 => "α",
  0046 => "&",
  0320 => "∠",
  0341 => "〈",
  0361 => "〉",
  0273 => "≈",
  0253 => "↔",
  0333 => "⇔",
  0337 => "⇓",
  0334 => "⇐",
  0336 => "⇒",
  0335 => "⇑",
  0257 => "↓",
  0276 => "",
  0254 => "←",
  0256 => "→",
  0255 => "↑",
  0275 => "",
  0052 => "∗",
  0174 => "|",
  0142 => "β",
  0173 => "{",
  0175 => "}",
  0354 => "",
  0355 => "",
  0356 => "",
  0374 => "",
  0375 => "",
  0376 => "",
  0357 => "",
  0133 => "[",
  0135 => "]",
  0351 => "",
  0352 => "",
  0353 => "",
  0371 => "",
  0372 => "",
  0373 => "",
  0267 => "•",
  0277 => "↵",
  0143 => "χ",
  0304 => "⊗",
  0305 => "⊕",
  0247 => "♣",
  0072 => ":",
  0054 => ",",
  0100 => "≅",
  0343 => "",
  0260 => "°",
  0144 => "δ",
  0250 => "♦",
  0270 => "÷",
  0327 => "⋅",
  0070 => "8",
  0316 => "∈",
  0274 => "…",
  0306 => "∅",
  0145 => "ε",
  0075 => "=",
  0272 => "≡",
  0150 => "η",
  0041 => "!",
  0044 => "∃",
  0065 => "5",
  0246 => "ƒ",
  0064 => "4",
  0244 => "⁄",
  0147 => "γ",
  0321 => "∇",
  0076 => ">",
  0263 => "≥",
  0251 => "♥",
  0245 => "∞",
  0362 => "∫",
  0363 => "⌠",
  0364 => "",
  0365 => "⌡",
  0307 => "∩",
  0151 => "ι",
  0153 => "κ",
  0154 => "λ",
  0074 => "<",
  0243 => "≤",
  0331 => "∧",
  0330 => "¬",
  0332 => "∨",
  0340 => "◊",
  0055 => "−",
  0242 => "′",
  0155 => "μ",
  0264 => "×",
  0071 => "9",
  0317 => "∉",
  0271 => "≠",
  0313 => "⊄",
  0156 => "ν",
  0043 => "#",
  0167 => "ω",
  0166 => "ϖ",
  0157 => "ο",
  0061 => "1",
  0050 => "(",
  0051 => ")",
  0346 => "",
  0347 => "",
  0350 => "",
  0366 => "",
  0367 => "",
  0370 => "",
  0266 => "∂",
  0045 => "%",
  0056 => ".",
  0136 => "⊥",
  0146 => "φ",
  0160 => "π",
  0053 => "+",
  0261 => "±",
  0325 => "Π",
  0314 => "⊂",
  0311 => "⊃",
  0265 => "∝",
  0171 => "ψ",
  0077 => "?",
  0326 => "√",
  0315 => "⊆",
  0312 => "⊇",
  0342 => "",
  0162 => "ρ",
  0262 => "″",
  0073 => ";",
  0067 => "7",
  0163 => "σ",
  0126 => "ς",
  0176 => "∼",
  0066 => "6",
  0057 => "/",
  0252 => "♠",
  0047 => "∋",
  0345 => "Σ",
  0164 => "τ",
  0134 => "∴",
  0161 => "θ",
  0063 => "3",
  0344 => "",
  0062 => "2",
  0137 => "_",
  0310 => "∪",
  0042 => "∀",
  0165 => "υ",
  0303 => "℘",
  0170 => "ξ",
  0060 => "0",
  0172 => "ζ",
}

Instance Method Summary collapse

Instance Method Details

#_import_text(value) ⇒ Object 



353
354
355
356
357
358
359
360
 
# File 'lib/oddb/import/rtf.rb', line 353

def _import_text(value)
  @buffer.set_format(*current_group)
  _sanitize_text(value)
  value.gsub!(/\\-/, '')
  value.gsub!(/\\~/, ' ')
  value.gsub!(/\\_/, '-')
  @buffer << value
end

#_next_paragraph ⇒ Object 



390
391
392
393
394
395
396
397
398
399
400
 
# File 'lib/oddb/import/rtf.rb', line 390

def _next_paragraph
  case @buffer
  when Text::Picture
    unless ignore? || @buffer.empty?
      @buffer.finalize!
      current_chapter.add_paragraph @buffer
    end
  end
rescue StandardError => error
  ODDB.logger.error("RTF") { sprintf "%s: %s", error.class, error.message }
end

#_sanitize_text(value) ⇒ Object 



406
407
 
# File 'lib/oddb/import/rtf.rb', line 406

def _sanitize_text(value)
end

#align(align) ⇒ Object 



219
220
221
222
 
# File 'lib/oddb/import/rtf.rb', line 219

def align(align)
  current_group.push align
  @buffer.align = align
end

#current_chapter ⇒ Object 



223
224
225
 
# File 'lib/oddb/import/rtf.rb', line 223

def current_chapter
  @document.chapters.last
end

#current_group ⇒ Object 



226
227
228
 
# File 'lib/oddb/import/rtf.rb', line 226

def current_group
  @groups.last
end

#current_table ⇒ Object 



229
230
231
 
# File 'lib/oddb/import/rtf.rb', line 229

def current_table
  @table ||= Text::Table.new
end

#identify_chapter(buffer) ⇒ Object 



232
233
234
 
# File 'lib/oddb/import/rtf.rb', line 232

def identify_chapter buffer
  current_chapter
end

#ignore? ⇒ Boolean

Returns:

  • (Boolean) 


235
236
237
 
# File 'lib/oddb/import/rtf.rb', line 235

def ignore?
  !(current_group & [:ignore, 'v']).empty?
end

#import(io) ⇒ Object 



209
210
211
212
213
214
215
216
217
218
 
# File 'lib/oddb/import/rtf.rb', line 209

def import(io)
  reader = RtfReader.new(io)
  @codepage = 'cp1252'
  @groups = [[]]
  init
  begin
    type = import_token(reader)
  end until type == 'eof'
  @document
end

#import_control(value, extra) ⇒ Object 



238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
 
# File 'lib/oddb/import/rtf.rb', line 238

def import_control(value, extra)
  case value
  when '\\ansicpg'
    @codepage = "cp#{extra}"
  when '\\fonttbl', '\\colortbl', '\\stylesheet', '\\listtable', 
       '\\listoverridetable', '\\rsidtbl', '\\generator', '\\info',
       '\header', '\\headerr', '\footer', '\\footerf', '\\footerr',
       '\\deleted'
    current_group.push :ignore
  when '\\b', '\\i', '\\sub', '\\v'
    if(extra == '0')
      current_group.delete(value[1..-1])
    else
      current_group.push(value[1..-1]).uniq!
    end
  when '\\cell'
    current_table << @buffer
    @buffer = next_paragraph
    @table.next_cell!
  when '\\dn'
    current_group.push "sub"
  when '\\endash', '\\emdash' 
    @buffer << '-'
  when '\\fs'
    set_font_size(extra)
  when '\\intbl'
    @table_flag = true
  when '\\line'
    @buffer << "\n" unless @buffer.empty?
  when '\\par'
    if @table_flag
      # do nothing
    elsif @table
      @table.clean!
      unless @table.empty?
        current_chapter.add_paragraph @table
      end
      @table = nil
    else
      unless ignore? || @buffer.empty?
        chapter = identify_chapter @buffer
        chapter.add_paragraph @buffer
        @buffer = next_paragraph
      end
    end
  when '\\pict'
    current_group.push :picture
    @buffer = Text::Picture.new
  when '\\pich'
    @buffer.height = extra.to_i
  when '\\pichgoal'
    @buffer.height_goal = extra.to_i
  when '\\picw'
    @buffer.width = extra.to_i
  when '\\picwgoal'
    @buffer.width_goal = extra.to_i
  when '\\picscalex'
    @buffer.xscale = extra.to_i
  when '\\picscaley'
    @buffer.yscale = extra.to_i
  when '\\plain'
    current_group.delete_if { |item| item.is_a? String }
  when '\\qc'
    align :center
  when '\\qj'
    align :justify
  when '\\ql'
    align :left
  when '\\qr'
    align :right
  when '\\row'
    current_table.next_row!
    @table_flag = nil
  when '\\super'
    current_group.push 'sup'
  when '\\tab'
    _import_text("\t")
  when '\\ul'
    current_group.push "u"
  when '\\up'
    current_group.push "super"
  when '\\wmetafile'
    current_group.push "wmf"
  end
end

#import_group(value, extra) ⇒ Object 



323
324
325
326
327
328
329
330
331
332
333
 
# File 'lib/oddb/import/rtf.rb', line 323

def import_group(value, extra)
  case value
  when '{'
    @groups.push current_group.dup
  when '}'
    @groups.pop
    if(@buffer.is_a?(Text::Picture) && !current_group.include?(:picture))
      @buffer = next_paragraph
    end
  end
end

#import_text(value, extra) ⇒ Object 



334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
 
# File 'lib/oddb/import/rtf.rb', line 334

def import_text(value, extra)
  case value
  when '\\*'
    current_group.push :ignore
  when /SYMBOL\s*\d/i
    _import_text SYMBOLS[value[/\d+/].to_i].to_s
  else
    value.gsub!(/\r\n/, '')
    value.gsub!(/\\'([0-9a-f]{2})/i) { |match|
      match[2,2].to_i(16).chr
    }
    begin 
      value.force_encoding @codepage
      value = value.encode('utf-8')
    rescue 
    end
    _import_text(value) unless ignore?
  end
end

#import_token(reader) ⇒ Object 



361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
 
# File 'lib/oddb/import/rtf.rb', line 361

def import_token(reader)
  type, value, extra = reader.get_token
  case type
  when 'control'
    if(value == '\\rtf')
      @valid = true
    end
    import_control(value, extra)
  when 'group'
    import_group(value, extra)
  when 'text'
    unless @valid
      raise ArgumentError, "Invalid RTF-File: Text before rtf-version" 
    end
    import_text(value, extra)
  end
  type
end

#init ⇒ Object 



379
380
381
382
383
 
# File 'lib/oddb/import/rtf.rb', line 379

def init
  @buffer = next_paragraph
  @document = Text::Document.new
  @document.add_chapter Text::Chapter.new('default')
end

#next_paragraph ⇒ Object 



384
385
386
387
388
389
 
# File 'lib/oddb/import/rtf.rb', line 384

def next_paragraph
  _next_paragraph
  par = Text::Paragraph.new
  par.align = (current_group & [:left, :right, :center, :justify]).last
  par
end

#parent_group ⇒ Object 



401
402
403
 
# File 'lib/oddb/import/rtf.rb', line 401

def parent_group
  @groups[-2] || []
end

#set_font_size(size) ⇒ Object 



404
405
 
# File 'lib/oddb/import/rtf.rb', line 404

def set_font_size(size)
end