Class: Koara::Parser

Inherits:
Object
  • Object
show all
Defined in:
lib/koara/parser.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Parser

Returns a new instance of Parser.



28
29
30
31
32
33
 
# File 'lib/koara/parser.rb', line 28

def initialize
  @current_block_level = 0
  @current_quote_level = 0
  @look_ahead_success = Koara::LookaheadSuccess.new
  @modules = %w(paragraphs headings lists links images formatting blockquotes code)
end

Instance Attribute Details

#modules ⇒ Object

Returns the value of attribute modules.



26
27
28
 
# File 'lib/koara/parser.rb', line 26

def modules
  @modules
end

Instance Method Details

#block_ahead(block_begin_column) ⇒ Object 



1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
 
# File 'lib/koara/parser.rb', line 1059

def block_ahead(block_begin_column)
  if get_next_token_kind == TokenManager::EOL
    i = 2
    t = nil
    loop do
      quote_level = 0
      loop do
        t = get_token(i)
        i+=1
        if t.kind == TokenManager::GT
          if t.begin_column == 1 && @current_block_level > 0 && @current_quote_level == 0
            return false
          end
          quote_level+=1
        end
        break if t.kind != TokenManager::GT && t.kind != TokenManager::SPACE && t.kind != TokenManager::TAB
      end
      return true if quote_level > @current_quote_level
      return false if quote_level < @current_quote_level
      break if t.kind != TokenManager::EOL
    end
    return t.kind != TokenManager::EOF && (@current_block_level == 0 || t.begin_column >= (block_begin_column + 2))
  end
  false
end

#block_element ⇒ Object 



78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
 
# File 'lib/koara/parser.rb', line 78

def block_element
  @current_block_level += 1
  if modules.include?('headings') && heading_ahead(1)
    heading
  elsif modules.include?('blockquotes') && get_next_token_kind == TokenManager::GT
    block_quote
  elsif modules.include?('lists') && get_next_token_kind == TokenManager::DASH
    unordered_list
  elsif modules.include?('lists') && has_ordered_list_ahead
    ordered_list
  elsif modules.include?('code') && has_fenced_code_block_ahead
    fenced_code_block
  else
    paragraph
  end
  @current_block_level -= 1
end

#block_quote ⇒ Object 



127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
 
# File 'lib/koara/parser.rb', line 127

def block_quote
  blockquote = Ast::BlockQuote.new
  @tree.open_scope
  @current_quote_level += 1
  consume_token(TokenManager::GT)
  while block_quote_has_empty_line_ahead
    block_quote_empty_line
  end
  white_space
  if block_quote_has_any_block_elements_ahead
    block_element
    while block_ahead(0)
      while get_next_token_kind == TokenManager::EOL
        consume_token(TokenManager::EOL)
        white_space
        block_quote_prefix
      end
      block_element
    end
  end
  while has_block_quote_empty_lines_ahead
    block_quote_empty_line
  end
  @current_quote_level -= 1
  @tree.close_scope(blockquote)
end

#block_quote_empty_line ⇒ Object 



164
165
166
167
168
169
170
171
172
 
# File 'lib/koara/parser.rb', line 164

def block_quote_empty_line
  consume_token(TokenManager::EOL)
  white_space
  loop do
    consume_token(TokenManager::GT)
    white_space
    break if (get_next_token_kind != TokenManager::GT)
  end
end

#block_quote_has_any_block_elements_ahead ⇒ Object 



1319
1320
1321
1322
1323
1324
1325
1326
1327
 
# File 'lib/koara/parser.rb', line 1319

def block_quote_has_any_block_elements_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_more_block_elements
  rescue LookaheadSuccess
    return true
  end
end

#block_quote_has_empty_line_ahead ⇒ Object 



1279
1280
1281
1282
1283
1284
1285
1286
1287
 
# File 'lib/koara/parser.rb', line 1279

def block_quote_has_empty_line_ahead
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_block_quote_empty_line
  rescue LookaheadSuccess
    return true
  end
end

#block_quote_prefix ⇒ Object 



154
155
156
157
158
159
160
161
162
 
# File 'lib/koara/parser.rb', line 154

def block_quote_prefix
  i = 0
  loop do
    consume_token(TokenManager::GT)
    white_space
    i+=1
    break if (i >= @current_quote_level)
  end
end

#code ⇒ Object 



526
527
528
529
530
531
532
533
 
# File 'lib/koara/parser.rb', line 526

def code
  code = Ast::Code.new
  @tree.open_scope
  consume_token(TokenManager::BACKTICK)
  code_text
  consume_token(TokenManager::BACKTICK)
  @tree.close_scope(code)
end

#code_language ⇒ Object 



630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
 
# File 'lib/koara/parser.rb', line 630

def code_language
  s = StringIO.new('')
  loop do
    case get_next_token_kind
      when TokenManager::CHAR_SEQUENCE
        s << consume_token(TokenManager::CHAR_SEQUENCE).image
      when TokenManager::ASTERISK
        s << consume_token(TokenManager::ASTERISK).image
      when TokenManager::BACKSLASH
        s << consume_token(TokenManager::BACKSLASH).image
      when TokenManager::BACKTICK
        s << consume_token(TokenManager::BACKTICK).image
      when TokenManager::COLON
        s << consume_token(TokenManager::COLON).image
      when TokenManager::DASH
        s << consume_token(TokenManager::DASH).image
      when TokenManager::DIGITS
        s << consume_token(TokenManager::DIGITS).image
      when TokenManager::DOT
        s << consume_token(TokenManager::DOT).image
      when TokenManager::EQ
        s << consume_token(TokenManager::EQ).image
      when TokenManager::ESCAPED_CHAR
        s << consume_token(TokenManager::ESCAPED_CHAR).image
      when TokenManager::IMAGE_LABEL
        s << consume_token(TokenManager::IMAGE_LABEL).image
      when TokenManager::LT
        s << consume_token(TokenManager::LT).image
      when TokenManager::GT
        s << consume_token(TokenManager::GT).image
      when TokenManager::LBRACK
        s << consume_token(TokenManager::LBRACK).image
      when TokenManager::RBRACK
        s << consume_token(TokenManager::RBRACK).image
      when TokenManager::LPAREN
        s << consume_token(TokenManager::LPAREN).image
      when TokenManager::RPAREN
        s << consume_token(TokenManager::RPAREN).image
      when TokenManager::UNDERSCORE
        s << consume_token(TokenManager::UNDERSCORE).image
      when TokenManager::SPACE
        s << consume_token(TokenManager::SPACE).image
      when TokenManager::TAB
        consume_token(TokenManager::TAB)
        s << '    '
    end
    break if get_next_token_kind == TokenManager::EOL || get_next_token_kind == TokenManager::EOF
  end
  s.string
end

#code_multiline ⇒ Object 



1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
 
# File 'lib/koara/parser.rb', line 1025

def code_multiline
  code = Ast::Code.new
  @tree.open_scope
  consume_token(TokenManager::BACKTICK)
  code_text
  while text_ahead
    line_break
    white_space
    while get_next_token_kind == TokenManager::GT
      consume_token(TokenManager::GT)
      white_space
    end
    code_text
  end
  consume_token(TokenManager::BACKTICK)
  @tree.close_scope(code)
end

#code_text ⇒ Object 



535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
 
# File 'lib/koara/parser.rb', line 535

def code_text
  text = Ast::Text.new
  @tree.open_scope
  s = StringIO.new('')
  loop do
    case get_next_token_kind
      when TokenManager::CHAR_SEQUENCE
        s << consume_token(TokenManager::CHAR_SEQUENCE).image
      when TokenManager::ASTERISK
        s << consume_token(TokenManager::ASTERISK).image
      when TokenManager::BACKSLASH
        s << consume_token(TokenManager::BACKSLASH).image
      when TokenManager::COLON
        s << consume_token(TokenManager::COLON).image
      when TokenManager::DASH
        s << consume_token(TokenManager::DASH).image
      when TokenManager::DIGITS
        s << consume_token(TokenManager::DIGITS).image
      when TokenManager::DOT
        s << consume_token(TokenManager::DOT).image
      when TokenManager::EQ
        s << consume_token(TokenManager::EQ).image
      when TokenManager::ESCAPED_CHAR
        s << consume_token(TokenManager::ESCAPED_CHAR).image
      when TokenManager::IMAGE_LABEL
        s << consume_token(TokenManager::IMAGE_LABEL).image
      when TokenManager::LT
        s << consume_token(TokenManager::LT).image
      when TokenManager::LBRACK
        s << consume_token(TokenManager::LBRACK).image
      when TokenManager::RBRACK
        s << consume_token(TokenManager::RBRACK).image
      when TokenManager::LPAREN
        s << consume_token(TokenManager::LPAREN).image
      when TokenManager::GT
        s << consume_token(TokenManager::GT).image
      when TokenManager::RPAREN
        s << consume_token(TokenManager::RPAREN).image
      when TokenManager::UNDERSCORE
        s << consume_token(TokenManager::UNDERSCORE).image
      else
        unless next_after_space(TokenManager::EOL, TokenManager::EOF)
          case get_next_token_kind
            when TokenManager::SPACE
              s << consume_token(TokenManager::SPACE).image
            when TokenManager::TAB
              consume_token(TokenManager::TAB)
              s << '    '
          end
        end
    end

    break unless code_text_has_any_token_ahead
  end
  text.value = s.string
  @tree.close_scope(text)
end

#code_text_has_any_token_ahead ⇒ Object 



1570
1571
1572
1573
1574
1575
1576
1577
1578
 
# File 'lib/koara/parser.rb', line 1570

def code_text_has_any_token_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_code_text_tokens
  rescue LookaheadSuccess
    return true
  end
end

#consume_token(kind) ⇒ Object 



2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
 
# File 'lib/koara/parser.rb', line 2445

def consume_token(kind)
  old = @token

  if !@token.next.nil?
    @token = @token.next
  else
    @token = @token.next = @tm.get_next_token
  end

  @next_token_kind = -1
  return @token if @token.kind == kind
  @token = old
  @token
end

#em ⇒ Object 



494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
 
# File 'lib/koara/parser.rb', line 494

def em
  em = Ast::Em.new
  @tree.open_scope
  consume_token(TokenManager::UNDERSCORE)
  while em_has_elements
    if has_text_ahead
      text
    elsif modules.include?('images') && has_image
      image
    elsif modules.include?('links') && has_link_ahead
      link
    elsif modules.include?('code') && has_code_ahead
      code
    elsif em_has_strong_within_em
      strong_within_em
    else
      case get_next_token_kind
        when TokenManager::ASTERISK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::ASTERISK))
        when TokenManager::BACKTICK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::BACKTICK))
        when TokenManager::LBRACK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::LBRACK))
        else
          break
      end
    end
  end
  consume_token(TokenManager::UNDERSCORE)
  @tree.close_scope(em)
end

#em_has_elements ⇒ Object 



1550
1551
1552
1553
1554
1555
1556
1557
1558
 
# File 'lib/koara/parser.rb', line 1550

def em_has_elements
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_em_elements
  rescue LookaheadSuccess
    return true
  end
end

#em_has_strong_within_em ⇒ Object 



1540
1541
1542
1543
1544
1545
1546
1547
1548
 
# File 'lib/koara/parser.rb', line 1540

def em_has_strong_within_em
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_strong_within_em
  rescue LookaheadSuccess
    return true
  end
end

#em_multiline ⇒ Object 



919
920
921
922
923
924
925
926
927
928
929
930
931
 
# File 'lib/koara/parser.rb', line 919

def em_multiline
  em = Ast::Em.new
  @tree.open_scope
  consume_token(TokenManager::UNDERSCORE)
  em_multiline_content
  while text_ahead
    line_break
    white_space
    em_multiline_content
  end
  consume_token(TokenManager::UNDERSCORE)
  @tree.close_scope(em)
end

#em_multiline_content ⇒ Object 



933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
 
# File 'lib/koara/parser.rb', line 933

def em_multiline_content
  loop do
    if has_text_ahead
      text
    elsif modules.include?('images') && has_image_ahead
      image
    elsif modules.include?('links') && has_link_ahead
      link
    elsif modules.include?('code') && multiline_ahead(TokenManager::BACKTICK)
      code_multiline
    elsif has_strong_within_em_multiline_ahead
      strong_within_em_multiline
    else
      case get_next_token_kind
        when TokenManager::ASTERISK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::ASTERISK))
        when TokenManager::BACKTICK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::BACKTICK))
        when TokenManager::LBRACK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::LBRACK))
      end
    end
    break unless em_multiline_content_has_elements_ahead
  end
end

#em_multiline_content_has_elements_ahead ⇒ Object 



1520
1521
1522
1523
1524
1525
1526
1527
1528
 
# File 'lib/koara/parser.rb', line 1520

def em_multiline_content_has_elements_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_em_multiline_content_elements
  rescue LookaheadSuccess
    return true
  end
end

#em_within_strong ⇒ Object 



996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
 
# File 'lib/koara/parser.rb', line 996

def em_within_strong
  em = Ast::Em.new
  @tree.open_scope
  consume_token(TokenManager::UNDERSCORE)
  loop do
    if has_text_ahead
      text
    elsif modules.include?('images') && has_image_ahead
      image
    elsif modules.include?('links') && has_link_ahead
      link
    elsif modules.include?('code') && has_code_ahead
      code
    else
      case get_next_token_kind
        when TokenManager::ASTERISK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::ASTERISK))
        when TokenManager::BACKTICK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::BACKTICK))
        when TokenManager::LBRACK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::LBRACK))
      end
    end
    break unless em_within_strong_has_elements_ahead
  end
  consume_token(TokenManager::UNDERSCORE)
  @tree.close_scope(em)
end

#em_within_strong_has_elements_ahead ⇒ Object 



1560
1561
1562
1563
1564
1565
1566
1567
1568
 
# File 'lib/koara/parser.rb', line 1560

def em_within_strong_has_elements_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_em_within_strong_elements
  rescue LookaheadSuccess
    return true
  end
end

#em_within_strong_multiline ⇒ Object 



959
960
961
962
963
964
965
966
967
968
969
970
 
# File 'lib/koara/parser.rb', line 959

def em_within_strong_multiline
  em = Ast::Em.new
  @tree.open_scope
  consume_token(TokenManager::UNDERSCORE)
  em_within_strong_multiline_content
  while text_ahead
    line_break
    em_within_strong_multiline_content
  end
  consume_token(TokenManager::UNDERSCORE)
  @tree.close_scope(em)
end

#em_within_strong_multiline_content ⇒ Object 



972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
 
# File 'lib/koara/parser.rb', line 972

def em_within_strong_multiline_content
  loop do
    if has_text_ahead
      text
    elsif modules.include?('images') && has_image_ahead
      image
    elsif modules.include?('links') && has_link_ahead
      link
    elsif modules.include?('code') && has_code_ahead
      code
    else
      case get_next_token_kind
        when TokenManager::ASTERISK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::ASTERISK))
        when TokenManager::BACKTICK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::BACKTICK))
        when TokenManager::LBRACK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::LBRACK))
      end
    end
    break if !em_within_strong_multiline_content_has_elements_ahead
  end
end

#em_within_strong_multiline_content_has_elements_ahead ⇒ Object 



1530
1531
1532
1533
1534
1535
1536
1537
1538
 
# File 'lib/koara/parser.rb', line 1530

def em_within_strong_multiline_content_has_elements_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_em_within_strong_multiline_content
  rescue LookaheadSuccess
    return true
  end
end

#fenced_code_block ⇒ Object 



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
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
 
# File 'lib/koara/parser.rb', line 255

def fenced_code_block
  code_block = Ast::CodeBlock.new
  @tree.open_scope
  s = StringIO.new('')
  begin_column = consume_token(TokenManager::BACKTICK).begin_column
  loop do
    consume_token(TokenManager::BACKTICK)
    break if (get_next_token_kind != TokenManager::BACKTICK)
  end
  white_space
  if get_next_token_kind == TokenManager::CHAR_SEQUENCE
    code_block.language = code_language
  end
  if get_next_token_kind != TokenManager::EOF && !fences_ahead
    consume_token(TokenManager::EOL)
    level_white_space(begin_column)
  end

  kind = get_next_token_kind
  while kind != TokenManager::EOF && ((kind != TokenManager::EOL && kind != TokenManager::BACKTICK) || !fences_ahead)

    case kind
      when TokenManager::CHAR_SEQUENCE
        s << consume_token(TokenManager::CHAR_SEQUENCE).image
      when TokenManager::ASTERISK
        s << consume_token(TokenManager::ASTERISK).image
      when TokenManager::BACKSLASH
        s << consume_token(TokenManager::BACKSLASH).image
      when TokenManager::COLON
        s << consume_token(TokenManager::COLON).image
      when TokenManager::DASH
        s << consume_token(TokenManager::DASH).image
      when TokenManager::DIGITS
        s << consume_token(TokenManager::DIGITS).image
      when TokenManager::DOT
        s << consume_token(TokenManager::DOT).image
      when TokenManager::EQ
        s << consume_token(TokenManager::EQ).image
      when TokenManager::ESCAPED_CHAR
        s << consume_token(TokenManager::ESCAPED_CHAR).image
      when TokenManager::IMAGE_LABEL
        s << consume_token(TokenManager::IMAGE_LABEL).image
      when TokenManager::LT
        s << consume_token(TokenManager::LT).image
      when TokenManager::GT
        s << consume_token(TokenManager::GT).image
      when TokenManager::LBRACK
        s << consume_token(TokenManager::LBRACK).image
      when TokenManager::RBRACK
        s << consume_token(TokenManager::RBRACK).image
      when TokenManager::LPAREN
        s << consume_token(TokenManager::LPAREN).image
      when TokenManager::RPAREN
        s << consume_token(TokenManager::RPAREN).image
      when TokenManager::UNDERSCORE
        s << consume_token(TokenManager::UNDERSCORE).image
      when TokenManager::BACKTICK
        s << consume_token(TokenManager::BACKTICK).image
      else
        if !next_after_space(TokenManager::EOL, TokenManager::EOF)
          case kind
            when TokenManager::SPACE
              s << consume_token(TokenManager::SPACE).image
            when TokenManager::TAB
              consume_token(TokenManager::TAB)
              s << '    '
          end
        elsif !fences_ahead
          consume_token(TokenManager::EOL)
          s << "\n"
          level_white_space(begin_column)
        end
    end
    kind = get_next_token_kind
  end
  if fences_ahead
    consume_token(TokenManager::EOL)
    block_quote_prefix
    white_space
    while get_next_token_kind == TokenManager::BACKTICK
      consume_token(TokenManager::BACKTICK)
    end
  end
  code_block.value = s.string
  @tree.close_scope(code_block)
end

#fences_ahead ⇒ Object 



1115
1116
1117
1118
1119
1120
1121
1122
 
# File 'lib/koara/parser.rb', line 1115

def fences_ahead
  i = skip(2, TokenManager::SPACE, TokenManager::TAB, TokenManager::GT)
  if get_token(i).kind == TokenManager::BACKTICK && get_token(i + 1).kind == TokenManager::BACKTICK && get_token(i + 2).kind == TokenManager::BACKTICK
    i = skip(i + 3, TokenManager::SPACE, TokenManager::TAB)
    return get_token(i).kind == TokenManager::EOL || get_token(i).kind == TokenManager::EOF
  end
  false
end

#get_next_token_kind ⇒ Object 



2435
2436
2437
2438
2439
2440
2441
2442
2443
 
# File 'lib/koara/parser.rb', line 2435

def get_next_token_kind
  if @next_token_kind != -1
    return @next_token_kind
  elsif (@next_token = @token.next).nil?
    @token.next = @tm.get_next_token
    return (@next_token_kind = @token.next.kind)
  end
  @next_token_kind = @next_token.kind
end

#get_token(index) ⇒ Object 



2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
 
# File 'lib/koara/parser.rb', line 2460

def get_token(index)
  t = @looking_ahead ? @scan_position : @token
  0.upto(index - 1) do
    if !t.next.nil?
      t = t.next
    else
      t = t.next = @tm.get_next_token
    end
  end
  t
end

#has_any_block_elements_ahead ⇒ Object 



1049
1050
1051
1052
1053
1054
1055
1056
1057
 
# File 'lib/koara/parser.rb', line 1049

def has_any_block_elements_ahead
  begin
    @look_ahead = 1
    @last_position = @scan_position = @token
    return !scan_more_block_elements
  rescue LookaheadSuccess
    return true
  end
end

#has_block_quote_empty_lines_ahead ⇒ Object 



1329
1330
1331
1332
1333
1334
1335
1336
1337
 
# File 'lib/koara/parser.rb', line 1329

def has_block_quote_empty_lines_ahead
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_block_quote_empty_lines
  rescue LookaheadSuccess
    return true
  end
end

#has_code_ahead ⇒ Object 



1309
1310
1311
1312
1313
1314
1315
1316
1317
 
# File 'lib/koara/parser.rb', line 1309

def has_code_ahead
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_code
  rescue LookaheadSuccess
    return true
  end
end

#has_code_text_on_next_line_ahead ⇒ Object 



1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
 
# File 'lib/koara/parser.rb', line 1758

def has_code_text_on_next_line_ahead
  return true if scan_whitespace_token_before_eol
  while true
    xsp = @scan_position
    if scan_token(TokenManager::GT)
      @scan_position = xsp
      break
    end
  end
  scan_code_text_tokens_ahead
end

#has_em_ahead ⇒ Object 



1299
1300
1301
1302
1303
1304
1305
1306
1307
 
# File 'lib/koara/parser.rb', line 1299

def has_em_ahead
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_em
  rescue LookaheadSuccess
    return true
  end
end

#has_em_within_strong_multiline ⇒ Object 



1430
1431
1432
1433
1434
1435
1436
1437
1438
 
# File 'lib/koara/parser.rb', line 1430

def has_em_within_strong_multiline
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_em_within_strong_multiline
  rescue LookaheadSuccess
    return true
  end
end

#has_fenced_code_block_ahead ⇒ Object 



1219
1220
1221
1222
1223
1224
1225
1226
1227
 
# File 'lib/koara/parser.rb', line 1219

def has_fenced_code_block_ahead
  @look_ahead = 3
  @last_position = @scan_position = @token
  begin
    return !scan_fenced_code_block
  rescue LookaheadSuccess
    return true
  end
end

#has_image ⇒ Object 



1460
1461
1462
1463
1464
1465
1466
1467
1468
 
# File 'lib/koara/parser.rb', line 1460

def has_image
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_image
  rescue LookaheadSuccess
    return true
  end
end

#has_image_ahead ⇒ Object 



1269
1270
1271
1272
1273
1274
1275
1276
1277
 
# File 'lib/koara/parser.rb', line 1269

def has_image_ahead
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_image
  rescue LookaheadSuccess
    return true
  end
end

#has_inline_element_ahead ⇒ Object 



1360
1361
1362
1363
1364
1365
1366
1367
1368
 
# File 'lib/koara/parser.rb', line 1360

def has_inline_element_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_inline_element
  rescue LookaheadSuccess
    return true
  end
end

#has_inline_text_ahead ⇒ Object 



1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
 
# File 'lib/koara/parser.rb', line 1349

def has_inline_text_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token

  begin
    return !scan_text_tokens
  rescue LookaheadSuccess
    return true
  end
end

#has_link_ahead ⇒ Object 



1470
1471
1472
1473
1474
1475
1476
1477
1478
 
# File 'lib/koara/parser.rb', line 1470

def has_link_ahead
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_link
  rescue LookaheadSuccess
    return true
  end
end

#has_no_em_within_strong_multiline_content_ahead ⇒ Object 



1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
 
# File 'lib/koara/parser.rb', line 1884

def has_no_em_within_strong_multiline_content_ahead
  if scan_em_within_strong_multiline_content
    return true
  end
  while true
    xsp = @scan_position
    if scan_em_within_strong_multiline_content
      @scan_position = xsp
      break
    end
  end
  false
end

#has_ordered_list_ahead ⇒ Object 



1209
1210
1211
1212
1213
1214
1215
1216
1217
 
# File 'lib/koara/parser.rb', line 1209

def has_ordered_list_ahead
  @look_ahead = 2
  @last_position = @scan_position = @token
  begin
    return !scan_token(TokenManager::DIGITS) && !scan_token(TokenManager::DOT)
  rescue LookaheadSuccess
    return true
  end
end

#has_resource_text_ahead ⇒ Object 



1380
1381
1382
1383
1384
1385
1386
1387
1388
 
# File 'lib/koara/parser.rb', line 1380

def has_resource_text_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_resource_elements
  rescue LookaheadSuccess
    return true
  end
end

#has_resource_url_ahead ⇒ Object 



1400
1401
1402
1403
1404
1405
1406
1407
1408
 
# File 'lib/koara/parser.rb', line 1400

def has_resource_url_ahead
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_resource_url
  rescue LookaheadSuccess
    return true
  end
end

#has_strong_ahead ⇒ Object 



1289
1290
1291
1292
1293
1294
1295
1296
1297
 
# File 'lib/koara/parser.rb', line 1289

def has_strong_ahead
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_strong
  rescue LookaheadSuccess
    return true
  end
end

#has_strong_within_em_multiline_ahead ⇒ Object 



1510
1511
1512
1513
1514
1515
1516
1517
1518
 
# File 'lib/koara/parser.rb', line 1510

def has_strong_within_em_multiline_ahead
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_strong_within_em_multiline
  rescue LookaheadSuccess
    return true
  end
end

#has_text_ahead ⇒ Object 



1259
1260
1261
1262
1263
1264
1265
1266
1267
 
# File 'lib/koara/parser.rb', line 1259

def has_text_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_text_tokens
  end
rescue LookaheadSuccess
  return true
end

#heading ⇒ Object 



96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
 
# File 'lib/koara/parser.rb', line 96

def heading
  heading = Ast::Heading.new
  @tree.open_scope
  heading_level = 0

  while get_next_token_kind == TokenManager::EQ
    consume_token(TokenManager::EQ)
    heading_level += 1
  end
  white_space
  while heading_has_inline_elements_ahead
    if has_text_ahead
      text
    elsif modules.include?('images') && has_image_ahead
      image
    elsif modules.include?('links') && has_link_ahead
      link
    elsif modules.include?('formatting') && has_strong_ahead
      strong
    elsif modules.include?('formatting') && has_em_ahead
      em
    elsif modules.include?('code') && has_code_ahead
      code
    else
      loose_char
    end
  end
  heading.value = heading_level
  @tree.close_scope(heading)
end

#heading_ahead(offset) ⇒ Object 



1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
 
# File 'lib/koara/parser.rb', line 1124

def heading_ahead(offset)
  if get_token(offset).kind == TokenManager::EQ
    heading = 1

    i = offset + 1
    loop do
      if get_token(i).kind != TokenManager::EQ
        return true
      end
      if (heading+=1) > 6
        return false
      end
      i+= 1
    end
  end
  false
end

#heading_has_inline_elements_ahead ⇒ Object 



1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
 
# File 'lib/koara/parser.rb', line 1229

def heading_has_inline_elements_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    xsp = @scan_position
    if scan_text_tokens
      @scan_position = xsp
      if scan_image
        @scan_position = xsp
        if scan_link
          @scan_position = xsp
          if scan_strong
            @scan_position = xsp
            if scan_em
              @scan_position = xsp
              if scan_code
                @scan_position = xsp
                return false if scan_loose_char
              end
            end
          end
        end
      end
    end
    return true
  rescue LookaheadSuccess
    return true
  end
end

#image ⇒ Object 



408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
 
# File 'lib/koara/parser.rb', line 408

def image
  image = Ast::Image.new
  @tree.open_scope
  ref = ''
  consume_token(TokenManager::LBRACK)
  white_space
  consume_token(TokenManager::IMAGE_LABEL)
  white_space
  while image_has_any_elements
    if has_text_ahead
      resource_text
    else
      loose_char
    end
  end
  white_space
  consume_token(TokenManager::RBRACK)
  if has_resource_url_ahead
    ref = resource_url
  end
  image.value = ref
  @tree.close_scope(image)
end

#image_has_any_elements ⇒ Object 



1370
1371
1372
1373
1374
1375
1376
1377
1378
 
# File 'lib/koara/parser.rb', line 1370

def image_has_any_elements
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_image_element
  rescue LookaheadSuccess
    return true
  end
end

#inline ⇒ Object 



681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
 
# File 'lib/koara/parser.rb', line 681

def inline
  loop do
    if has_inline_text_ahead
      text
    elsif @modules.include?('images') && has_image_ahead
      image
    elsif @modules.include?('links') && has_link_ahead
      link
    elsif @modules.include?('formatting') && multiline_ahead(TokenManager::ASTERISK)
      strong_multiline
    elsif @modules.include?('formatting') && multiline_ahead(TokenManager::UNDERSCORE)
      em_multiline
    elsif @modules.include?('code') && multiline_ahead(TokenManager::BACKTICK)
      code_multiline
    else
      loose_char
    end
    break unless has_inline_element_ahead
  end
end

#level_white_space(threshold) ⇒ Object 



620
621
622
623
624
625
626
627
628
 
# File 'lib/koara/parser.rb', line 620

def level_white_space(threshold)
  current_pos = 1
  while get_next_token_kind == TokenManager::GT
    consume_token(get_next_token_kind)
  end
  while (get_next_token_kind == TokenManager::SPACE || get_next_token_kind == TokenManager::TAB) && current_pos < (threshold - 1)
    current_pos = consume_token(get_next_token_kind).begin_column
  end
end

#line_break ⇒ Object 



609
610
611
612
613
614
615
616
617
618
 
# File 'lib/koara/parser.rb', line 609

def line_break
  linebreak = Ast::LineBreak.new
  @tree.open_scope
  while get_next_token_kind == TokenManager::SPACE || get_next_token_kind == TokenManager::TAB
    consume_token(get_next_token_kind)
  end
  token = consume_token(TokenManager::EOL)
  linebreak.explicit = token.image.start_with?("  ");
  @tree.close_scope(linebreak)
end

#link ⇒ Object 



432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
 
# File 'lib/koara/parser.rb', line 432

def link
  link = Ast::Link.new
  @tree.open_scope
  ref = ''
  consume_token(TokenManager::LBRACK)
  white_space
  while link_has_any_elements
    if modules.include?('images') && has_image_ahead
      image
    elsif modules.include?('formatting') && has_strong_ahead
      strong
    elsif modules.include?('formatting') && has_em_ahead
      em
    elsif modules.include?('code') && has_code_ahead
      code
    elsif has_resource_text_ahead
      resource_text
    else
      loose_char
    end
  end
  white_space
  consume_token(TokenManager::RBRACK)
  if has_resource_url_ahead
    ref = resource_url
  end
  link.value = ref
  @tree.close_scope(link)
end

#link_has_any_elements ⇒ Object 



1390
1391
1392
1393
1394
1395
1396
1397
1398
 
# File 'lib/koara/parser.rb', line 1390

def link_has_any_elements
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_link_element
  rescue LookaheadSuccess
    return true
  end
end

#list_item_ahead(list_begin_column, ordered) ⇒ Object 



1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
 
# File 'lib/koara/parser.rb', line 1142

def list_item_ahead(list_begin_column, ordered)
  if get_next_token_kind == TokenManager::EOL
    i = 2
    eol = 1
    loop do
      t = get_token(i)
      if t.kind == TokenManager::EOL && (eol+=1) > 2
        return false
      elsif t.kind != TokenManager::SPACE && t.kind != TokenManager::TAB && t.kind != TokenManager::GT && t.kind != TokenManager::EOL
        if ordered
          return t.kind == TokenManager::DIGITS && get_token(i + 1).kind == TokenManager::DOT && t.begin_column >= list_begin_column
        end
        return t.kind == TokenManager::DASH && t.begin_column >= list_begin_column
      end
      i+=1
    end
  end
  false
end

#list_item_has_inline_elements ⇒ Object 



1339
1340
1341
1342
1343
1344
1345
1346
1347
 
# File 'lib/koara/parser.rb', line 1339

def list_item_has_inline_elements
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_more_block_elements
  rescue LookaheadSuccess
    return true
  end
end

#loose_char ⇒ Object 



593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
 
# File 'lib/koara/parser.rb', line 593

def loose_char
  text = Ast::Text.new
  @tree.open_scope
  case get_next_token_kind
    when TokenManager::ASTERISK
      text.value = consume_token(TokenManager::ASTERISK).image
    when TokenManager::BACKTICK
      text.value = consume_token(TokenManager::BACKTICK).image
    when TokenManager::LBRACK
      text.value = consume_token(TokenManager::LBRACK).image
    when TokenManager::UNDERSCORE
      text.value = consume_token(TokenManager::UNDERSCORE).image
  end
  @tree.close_scope(text)
end

#multiline_ahead(token) ⇒ Object 



1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
 
# File 'lib/koara/parser.rb', line 1085

def multiline_ahead(token)
  if get_next_token_kind == token && get_token(2).kind != token && get_token(2).kind != TokenManager::EOL
    i=2
    loop do
      t = get_token(i)
      if t.kind == token
        return true
      elsif t.kind == TokenManager::EOL
        i = skip(i + 1, TokenManager::SPACE, TokenManager::TAB)
        quote_level = new_quote_level(i)
        if quote_level == @current_quote_level
          i = skip(i, TokenManager::SPACE, TokenManager::TAB, TokenManager::GT)
          if get_token(i).kind == token || get_token(i).kind == TokenManager::EOL || get_token(i).kind == TokenManager::DASH \
        || (get_token(i).kind == TokenManager::DIGITS && get_token(i + 1).kind == TokenManager::DOT) \
        || (get_token(i).kind == TokenManager::BACKTICK && get_token(i + 1).kind == TokenManager::BACKTICK && get_token(i + 2).kind == TokenManager::BACKTICK) \
        || heading_ahead(i)
            return false
          end
        else
          return false
        end
      elsif t.kind == TokenManager::EOF
        return false
      end
      i += 1
    end
  end
  false
end

#new_quote_level(offset) ⇒ Object 



1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
 
# File 'lib/koara/parser.rb', line 1184

def new_quote_level(offset)
  quote_level = 0
  i = offset
  loop do
    t = get_token(i)
    if t.kind == TokenManager::GT
      quote_level+=1
    elsif t.kind != TokenManager::SPACE && t.kind != TokenManager::TAB
      return quote_level
    end
    i+=1
  end
end

#next_after_space(*tokens) ⇒ Object 



1179
1180
1181
1182
 
# File 'lib/koara/parser.rb', line 1179

def next_after_space(*tokens)
  i = skip(1, TokenManager::SPACE, TokenManager::TAB)
  tokens.include?(get_token(i).kind)
end

#ordered_list ⇒ Object 



214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
 
# File 'lib/koara/parser.rb', line 214

def ordered_list
  list = Ast::ListBlock.new(true)
  @tree.open_scope
  list_begin_column = ordered_list_item
  while list_item_ahead(list_begin_column, true)
    while get_next_token_kind == TokenManager::EOL
      consume_token(TokenManager::EOL)
    end
    white_space
    if @current_quote_level > 0
      block_quote_prefix
    end
    ordered_list_item
  end
  @tree.close_scope(list)
end

#ordered_list_item ⇒ Object 



231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
 
# File 'lib/koara/parser.rb', line 231

def ordered_list_item
  list_item = Ast::ListItem.new
  @tree.open_scope
  t = consume_token(TokenManager::DIGITS)
  consume_token(TokenManager::DOT)
  white_space
  if list_item_has_inline_elements
    block_element
    while block_ahead(t.begin_column)
      while get_next_token_kind == TokenManager::EOL
        consume_token(TokenManager::EOL)
        white_space
        if @current_quote_level > 0
          block_quote_prefix
        end
      end
      block_element
    end
  end
  list_item.number = t.image
  @tree.close_scope(list_item)
  t.begin_column
end

#paragraph ⇒ Object 



342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
 
# File 'lib/koara/parser.rb', line 342

def paragraph
  paragraph = @modules.include?('paragraphs') ? Ast::Paragraph.new : Ast::BlockElement.new
  @tree.open_scope
  inline
  while text_ahead
    line_break
    white_space
    if modules.include?('blockquotes')
      while get_next_token_kind == TokenManager::GT
        consume_token(TokenManager::GT)
        white_space
      end
    end
    inline
  end
  @tree.close_scope(paragraph)
end

#parse(text) ⇒ Object 



35
36
37
 
# File 'lib/koara/parser.rb', line 35

def parse(text)
  return parse_reader(Koara::Io::StringReader.new(text))
end

#parse_file(file) ⇒ Object 



39
40
41
42
43
44
 
# File 'lib/koara/parser.rb', line 39

def parse_file(file)
  if File.basename(file).downcase.reverse[0, 3].reverse.to_s != '.kd'
    raise(ArgumentError, "Can only parse files with extension .kd")
  end
  parse_reader(Io::FileReader.new(file))
end

#parse_reader(reader) ⇒ Object 



46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
 
# File 'lib/koara/parser.rb', line 46

def parse_reader(reader)
  @cs = CharStream.new(reader)
  @tm = TokenManager.new(@cs)
  @token = Token.new
  @tree = TreeState.new
  @next_token_kind = -1
  document = Ast::Document.new
  @tree.open_scope

  while get_next_token_kind == TokenManager::EOL
    consume_token(TokenManager::EOL)
  end
  white_space
  if has_any_block_elements_ahead
    block_element
    while block_ahead(0)
      while get_next_token_kind == TokenManager::EOL
        consume_token(TokenManager::EOL)
        white_space
      end
      block_element
    end
    while get_next_token_kind == TokenManager::EOL
      consume_token(TokenManager::EOL)
    end
    white_space
  end
  consume_token(Koara::TokenManager::EOF)
  @tree.close_scope(document)
  document
end

#resource_has_element_ahead ⇒ Object 



1410
1411
1412
1413
1414
1415
1416
1417
1418
 
# File 'lib/koara/parser.rb', line 1410

def resource_has_element_ahead
  @look_ahead = 2
  @last_position = @scan_position = @token
  begin
    return !scan_resource_element
  rescue LookaheadSuccess
    return true
  end
end

#resource_text ⇒ Object 



702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
 
# File 'lib/koara/parser.rb', line 702

def resource_text
  text = Ast::Text.new
  @tree.open_scope
  s = StringIO.new('')
  loop do
    case get_next_token_kind
      when TokenManager::CHAR_SEQUENCE
        s << consume_token(TokenManager::CHAR_SEQUENCE).image
      when TokenManager::BACKSLASH
        s << consume_token(TokenManager::BACKSLASH).image
      when TokenManager::COLON
        s << consume_token(TokenManager::COLON).image
      when TokenManager::DASH
        s << consume_token(TokenManager::DASH).image
      when TokenManager::DIGITS
        s << consume_token(TokenManager::DIGITS).image
      when TokenManager::DOT
        s << consume_token(TokenManager::DOT).image
      when TokenManager::EQ
        s << consume_token(TokenManager::EQ).image
      when TokenManager::ESCAPED_CHAR
        s << consume_token(TokenManager::ESCAPED_CHAR).image[1..-1]
      when TokenManager::IMAGE_LABEL
        s << consume_token(TokenManager::IMAGE_LABEL).image
      when TokenManager::GT
        s << consume_token(TokenManager::GT).image
      when TokenManager::LPAREN
        s << consume_token(TokenManager::LPAREN).image
      when TokenManager::LT
        s << consume_token(TokenManager::LT).image
      when TokenManager::RPAREN
        s << consume_token(TokenManager::RPAREN).image
      else
        unless next_after_space(TokenManager::RBRACK)
          case get_next_token_kind
            when TokenManager::SPACE
              s << consume_token(TokenManager::SPACE).image
            when TokenManager::TAB
              consume_token(TokenManager::TAB)
              s << '    '
          end
        end
    end
    break unless resource_has_element_ahead
  end
  text.value = s.string
  @tree.close_scope(text)
end

#resource_text_has_elements_ahead ⇒ Object 



1420
1421
1422
1423
1424
1425
1426
1427
1428
 
# File 'lib/koara/parser.rb', line 1420

def resource_text_has_elements_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_resource_text_element
  rescue LookaheadSuccess
    return true
  end
end

#resource_url ⇒ Object 



751
752
753
754
755
756
757
758
 
# File 'lib/koara/parser.rb', line 751

def resource_url
  consume_token(TokenManager::LPAREN)
  white_space
  ref = resource_url_text
  white_space
  consume_token(TokenManager::RPAREN)
  ref
end

#resource_url_text ⇒ Object 



760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
 
# File 'lib/koara/parser.rb', line 760

def resource_url_text
  s = StringIO.new('')
  while resource_text_has_elements_ahead
    case get_next_token_kind
      when TokenManager::CHAR_SEQUENCE
        s << consume_token(TokenManager::CHAR_SEQUENCE).image
      when TokenManager::ASTERISK
        s << consume_token(TokenManager::ASTERISK).image
      when TokenManager::BACKSLASH
        s << consume_token(TokenManager::BACKSLASH).image
      when TokenManager::BACKTICK
        s << consume_token(TokenManager::BACKTICK).image
      when TokenManager::COLON
        s << consume_token(TokenManager::COLON).image
      when TokenManager::DASH
        s << consume_token(TokenManager::DASH).image
      when TokenManager::DIGITS
        s << consume_token(TokenManager::DIGITS).image
      when TokenManager::DOT
        s << consume_token(TokenManager::DOT).image
      when TokenManager::EQ
        s << consume_token(TokenManager::EQ).image
      when TokenManager::ESCAPED_CHAR
        s << consume_token(TokenManager::ESCAPED_CHAR).image[1..-1]
      when TokenManager::IMAGE_LABEL
        s << consume_token(TokenManager::IMAGE_LABEL).image
      when TokenManager::GT
        s << consume_token(TokenManager::GT).image
      when TokenManager::LBRACK
        s << consume_token(TokenManager::LBRACK).image
      when TokenManager::LPAREN
        s << consume_token(TokenManager::LPAREN).image
      when TokenManager::LT
        s << consume_token(TokenManager::LT).image
      when TokenManager::RBRACK
        s << consume_token(TokenManager::RBRACK).image
      when TokenManager::UNDERSCORE
        s << consume_token(TokenManager::UNDERSCORE).image
      else
        unless next_after_space(TokenManager::RPAREN)
          case get_next_token_kind
            when TokenManager::SPACE
              s << (consume_token(TokenManager::SPACE).image)
            when TokenManager::TAB
              consume_token(TokenManager::TAB)
              s << '    '
          end
        end
    end
  end
  s.string
end

#scan_block_quote_empty_line ⇒ Object 



2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
 
# File 'lib/koara/parser.rb', line 2366

def scan_block_quote_empty_line
  return true if scan_token(TokenManager::EOL) || scan_whitespace_tokens || scan_token(TokenManager::GT) || scan_whitespace_tokens
  while true
    xsp = @scan_position
    if scan_token(TokenManager::GT) || scan_whitespace_tokens
      @scan_position = xsp
      break
    end
  end
  false
end

#scan_block_quote_empty_lines ⇒ Object 



2362
2363
2364
 
# File 'lib/koara/parser.rb', line 2362

def scan_block_quote_empty_lines
  scan_block_quote_empty_line || scan_token(TokenManager::EOL)
end

#scan_code ⇒ Object 



1728
1729
1730
 
# File 'lib/koara/parser.rb', line 1728

def scan_code
  scan_token(TokenManager::BACKTICK) || scan_code_text_tokens_ahead() || scan_token(TokenManager::BACKTICK)
end

#scan_code_multiline ⇒ Object 



1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
 
# File 'lib/koara/parser.rb', line 1732

def scan_code_multiline
  if scan_token(TokenManager::BACKTICK) || scan_code_text_tokens_ahead
    return true
  end
  while true
    xsp = @scan_position
    if has_code_text_on_next_line_ahead
      @scan_position = xsp
      break
    end
  end
  scan_token(TokenManager::BACKTICK)
end

#scan_code_text_tokens ⇒ Object 



1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
 
# File 'lib/koara/parser.rb', line 1668

def scan_code_text_tokens
  xsp = @scan_position
  if scan_token(TokenManager::ASTERISK)
    @scan_position = xsp
    if scan_token(TokenManager::BACKSLASH)
      @scan_position = xsp
      if scan_token(TokenManager::CHAR_SEQUENCE)
        @scan_position = xsp
        if scan_token(TokenManager::COLON)
          @scan_position = xsp
          if scan_token(TokenManager::DASH)
            @scan_position = xsp
            if scan_token(TokenManager::DIGITS)
              @scan_position = xsp
              if scan_token(TokenManager::DOT)
                @scan_position = xsp
                if scan_token(TokenManager::EQ)
                  @scan_position = xsp
                  if scan_token(TokenManager::ESCAPED_CHAR)
                    @scan_position = xsp
                    if scan_token(TokenManager::IMAGE_LABEL)
                      @scan_position = xsp
                      if scan_token(TokenManager::LT)
                        @scan_position = xsp
                        if scan_token(TokenManager::LBRACK)
                          @scan_position = xsp
                          if scan_token(TokenManager::RBRACK)
                            @scan_position = xsp
                            if scan_token(TokenManager::LPAREN)
                              @scan_position = xsp
                              if scan_token(TokenManager::GT)
                                @scan_position = xsp
                                if scan_token(TokenManager::RPAREN)
                                  @scan_position = xsp
                                  if scan_token(TokenManager::UNDERSCORE)
                                    @scan_position = xsp
                                    @looking_ahead = true
                                    @semantic_look_ahead = !next_after_space(TokenManager::EOL, TokenManager::EOF)
                                    @looking_ahead = false
                                    return (!@semantic_look_ahead || scan_whitespace_token)
                                  end
                                end
                              end
                            end
                          end
                        end
                      end
                    end
                  end
                end
              end
            end
          end
        end
      end
    end
  end
  false
end

#scan_code_text_tokens_ahead ⇒ Object 



1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
 
# File 'lib/koara/parser.rb', line 1746

def scan_code_text_tokens_ahead
  return true if scan_code_text_tokens
  while true
    xsp = @scan_position
    if scan_code_text_tokens
      @scan_position = xsp
      break
    end
  end
  false
end

#scan_em ⇒ Object 



1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
 
# File 'lib/koara/parser.rb', line 1848

def scan_em
  return true if scan_token(TokenManager::UNDERSCORE) || scan_em_elements
  while true
    xsp = @scan_position
    if scan_em_elements
      @scan_position = xsp
      break
    end
  end
  scan_token(TokenManager::UNDERSCORE)
end

#scan_em_elements ⇒ Object 



1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
 
# File 'lib/koara/parser.rb', line 1821

def scan_em_elements
  xsp = @scan_position
  if scan_text_tokens
    @scan_position = xsp
    if scan_image
      @scan_position = xsp
      if scan_link
        @scan_position = xsp
        if scan_code
          @scan_position = xsp
          if scan_strong_within_em
            @scan_position = xsp
            if scan_token(TokenManager::ASTERISK)
              @scan_position = xsp
              if scan_token(TokenManager::BACKTICK)
                @scan_position = xsp
                return scan_token(TokenManager::LBRACK)
              end
            end
          end
        end
      end
    end
  end
  false
end

#scan_em_multiline_content_elements ⇒ Object 



1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
 
# File 'lib/koara/parser.rb', line 1912

def scan_em_multiline_content_elements
  xsp = @scan_position
  if scan_text_tokens
    @scan_position = xsp
    if scan_image
      @scan_position = xsp
      if scan_link
        @scan_position = xsp
        @looking_ahead = true
        @semantic_look_ahead = multiline_ahead(TokenManager::BACKTICK)
        @looking_ahead = false
        if !@semantic_look_ahead || scan_code_multiline
          @scan_position = xsp
          if scan_strong_within_em_multiline
            @scan_position = xsp
            if scan_token(TokenManager::ASTERISK)
              @scan_position = xsp
              if scan_token(TokenManager::BACKTICK)
                @scan_position = xsp
                return scan_token(TokenManager::LBRACK)
              end
            end
          end
        end
      end
    end
  end
  false
end

#scan_em_within_strong ⇒ Object 



1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
 
# File 'lib/koara/parser.rb', line 1809

def scan_em_within_strong
  return true if scan_token(TokenManager::UNDERSCORE) || scan_em_within_strong_elements
  while true
    xsp = @scan_position
    if scan_em_within_strong_elements
      @scan_position = xsp
      break
    end
  end
  scan_token(TokenManager::UNDERSCORE)
end

#scan_em_within_strong_elements ⇒ Object 



1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
 
# File 'lib/koara/parser.rb', line 1785

def scan_em_within_strong_elements
  xsp = @scan_position
  if scan_text_tokens
    @scan_position = xsp
    if scan_image
      @scan_position = xsp
      if scan_link
        @scan_position = xsp
        if scan_code
          @scan_position = xsp
          if scan_token(TokenManager::ASTERISK)
            @scan_position = xsp
            if scan_token(TokenManager::BACKTICK)
              @scan_position = xsp
              return scan_token(TokenManager::LBRACK)
            end
          end
        end
      end
    end
  end
  false
end

#scan_em_within_strong_multiline ⇒ Object 



1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
 
# File 'lib/koara/parser.rb', line 1898

def scan_em_within_strong_multiline
  if scan_token(TokenManager::UNDERSCORE) || has_no_em_within_strong_multiline_content_ahead
    return true
  end
  while true
    xsp = @scan_position
    if scan_whitespace_token_before_eol || has_no_em_within_strong_multiline_content_ahead
      @scan_position = xsp
      break
    end
  end
  scan_token(TokenManager::UNDERSCORE)
end

#scan_em_within_strong_multiline_content ⇒ Object 



1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
 
# File 'lib/koara/parser.rb', line 1860

def scan_em_within_strong_multiline_content
  xsp = @scan_position
  if scan_text_tokens
    @scan_position = xsp
    if scan_image
      @scan_position = xsp
      if scan_link
        @scan_position = xsp
        if scan_code
          @scan_position = xsp
          if scan_token(TokenManager::ASTERISK)
            @scan_position = xsp
            if scan_token(TokenManager::BACKTICK)
              @scan_position = xsp
              return scan_token(TokenManager::LBRACK)
            end
          end
        end
      end
    end
  end
  false
end

#scan_fenced_code_block ⇒ Object 



2358
2359
2360
 
# File 'lib/koara/parser.rb', line 2358

def scan_fenced_code_block
  scan_token(TokenManager::BACKTICK) || scan_token(TokenManager::BACKTICK) || scan_token(TokenManager::BACKTICK)
end

#scan_for_headersigns ⇒ Object 



2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
 
# File 'lib/koara/parser.rb', line 2378

def scan_for_headersigns
  return true if scan_token(TokenManager::EQ)
  while true
    xsp = @scan_position
    if scan_token(TokenManager::EQ)
      @scan_position = xsp
      break
    end
  end
  false
end

#scan_for_more_strong_within_em_multiline_elements ⇒ Object 



2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
 
# File 'lib/koara/parser.rb', line 2044

def scan_for_more_strong_within_em_multiline_elements
  return true if scan_strong_within_em_multiline_elements
  loop do
    xsp = @scan_position
    if scan_strong_within_em_multiline_elements
      @scan_position = xsp
      break
    end
  end
  false
end

#scan_image ⇒ Object 



2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
 
# File 'lib/koara/parser.rb', line 2281

def scan_image
  if scan_token(TokenManager::LBRACK) || scan_whitespace_tokens || scan_token(TokenManager::IMAGE_LABEL) || scan_image_element
    return true
  end
  while true
    xsp = @scan_position
    if scan_image_element
      @scan_position = xsp
      break
    end
  end
  if scan_whitespace_tokens || scan_token(TokenManager::RBRACK)
    return true
  end
  xsp = @scan_position
  if scan_resource_url
    @scan_position = xsp
  end
  false
end

#scan_image_element ⇒ Object 



2155
2156
2157
2158
2159
2160
2161
2162
 
# File 'lib/koara/parser.rb', line 2155

def scan_image_element
  xsp = @scan_position
  if scan_resource_elements
    @scan_position = xsp
    return true if scan_loose_char
  end
  false
end

#scan_inline_element ⇒ Object 



2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
 
# File 'lib/koara/parser.rb', line 2302

def scan_inline_element
  xsp = @scan_position
  if scan_text_tokens
    @scan_position = xsp
    if scan_image
      @scan_position = xsp
      if scan_link
        @scan_position = xsp
        @looking_ahead = true
        @semantic_look_ahead = multiline_ahead(TokenManager::ASTERISK)
        @looking_ahead = false
        if !@semantic_look_ahead || scan_token(TokenManager::ASTERISK)
          @scan_position = xsp
          @looking_ahead = true
          @semantic_look_ahead = multiline_ahead(TokenManager::UNDERSCORE)
          @looking_ahead = false
          if !@semantic_look_ahead || scan_token(TokenManager::UNDERSCORE)
            @scan_position = xsp
            @looking_ahead = true
            @semantic_look_ahead = multiline_ahead(TokenManager::BACKTICK)
            @looking_ahead = false
            if !@semantic_look_ahead || scan_code_multiline
              @scan_position = xsp
              return scan_loose_char
            end
          end
        end
      end
    end
  end
  false
end

#scan_link ⇒ Object 



2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
 
# File 'lib/koara/parser.rb', line 2260

def scan_link
  if scan_token(TokenManager::LBRACK) || scan_whitespace_tokens || scan_link_element
    return true
  end
  while true
    xsp = @scan_position
    if scan_link_element
      @scan_position = xsp
      break
    end
  end
  if scan_whitespace_tokens || scan_token(TokenManager::RBRACK)
    return true
  end
  xsp = @scan_position
  if scan_resource_url
    @scan_position = xsp
  end
  false
end

#scan_link_element ⇒ Object 



2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
 
# File 'lib/koara/parser.rb', line 2179

def scan_link_element
  xsp = @scan_position
  if scan_image
    @scan_position = xsp
    if scan_strong
      @scan_position = xsp
      if scan_em
        @scan_position = xsp
        if scan_code
          @scan_position = xsp
          if scan_resource_elements
            @scan_position = xsp
            return scan_loose_char
          end
        end
      end
    end
  end
  false
end

#scan_loose_char ⇒ Object 



1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
 
# File 'lib/koara/parser.rb', line 1590

def scan_loose_char
  xsp = @scan_position
  if scan_token(TokenManager::ASTERISK)
    @scan_position = xsp
    if scan_token(TokenManager::BACKTICK)
      @scan_position = xsp
      if scan_token(TokenManager::LBRACK)
        @scan_position = xsp
        return scan_token(TokenManager::UNDERSCORE)
      end
    end
  end
  false
end

#scan_more_block_elements ⇒ Object 



2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
 
# File 'lib/koara/parser.rb', line 2390

def scan_more_block_elements
  xsp = @scan_position
  @looking_ahead = true
  @semantic_look_ahead = heading_ahead(1)
  @looking_ahead = false
  if !@semantic_look_ahead || scan_for_headersigns
    @scan_position = xsp
    if scan_token(TokenManager::GT)
      @scan_position = xsp
      if scan_token(TokenManager::DASH)
        @scan_position = xsp
        if scan_token(TokenManager::DIGITS) || scan_token(TokenManager::DOT)
          @scan_position = xsp
          if scan_fenced_code_block
            @scan_position = xsp
            return scan_paragraph
          end
        end
      end
    end
  end
  false
end

#scan_paragraph ⇒ Object 



2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
 
# File 'lib/koara/parser.rb', line 2335

def scan_paragraph
  if scan_inline_element
    return true
  end
  while true
    xsp = @scan_position
    if scan_inline_element
      @scan_position = xsp
      break
    end
  end
  false
end

#scan_resource_element ⇒ Object 



2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
 
# File 'lib/koara/parser.rb', line 2200

def scan_resource_element
  xsp = @scan_position
  if scan_token(TokenManager::BACKSLASH)
    @scan_position = xsp
    if scan_token(TokenManager::COLON)
      @scan_position = xsp
      if scan_token(TokenManager::CHAR_SEQUENCE)
        @scan_position = xsp
        if scan_token(TokenManager::DASH)
          @scan_position = xsp
          if scan_token(TokenManager::DIGITS)
            @scan_position = xsp
            if scan_token(TokenManager::DOT)
              @scan_position = xsp
              if scan_token(TokenManager::EQ)
                @scan_position = xsp
                if scan_token(TokenManager::ESCAPED_CHAR)
                  @scan_position = xsp
                  if scan_token(TokenManager::IMAGE_LABEL)
                    @scan_position = xsp
                    if scan_token(TokenManager::GT)
                      @scan_position = xsp
                      if scan_token(TokenManager::LPAREN)
                        @scan_position = xsp
                        if scan_token(TokenManager::LT)
                          @scan_position = xsp
                          if scan_token(TokenManager::RPAREN)
                            @scan_position = xsp
                            @looking_ahead = true
                            @semantic_look_ahead = !next_after_space(TokenManager::RBRACK)
                            @looking_ahead = false
                            return !@semantic_look_ahead || scan_whitespace_token
                          end
                        end
                      end
                    end
                  end
                end
              end
            end
          end
        end
      end
    end
  end
  return false
end

#scan_resource_elements ⇒ Object 



2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
 
# File 'lib/koara/parser.rb', line 2248

def scan_resource_elements
  return true if scan_resource_element
  loop do
    xsp = @scan_position
    if scan_resource_element
      @scan_position = xsp
      break
    end
  end
  false
end

#scan_resource_text_element ⇒ Object 



2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
 
# File 'lib/koara/parser.rb', line 2095

def scan_resource_text_element
  xsp = @scan_position
  if scan_token(TokenManager::ASTERISK)
    @scan_position = xsp
    if scan_token(TokenManager::BACKSLASH)
      @scan_position = xsp
      if scan_token(TokenManager::BACKTICK)
        @scan_position = xsp
        if scan_token(TokenManager::CHAR_SEQUENCE)
          @scan_position = xsp
          if scan_token(TokenManager::COLON)
            @scan_position = xsp
            if scan_token(TokenManager::DASH)
              @scan_position = xsp
              if scan_token(TokenManager::DIGITS)
                @scan_position = xsp
                if scan_token(TokenManager::DOT)
                  @scan_position = xsp
                  if scan_token(TokenManager::EQ)
                    @scan_position = xsp
                    if scan_token(TokenManager::ESCAPED_CHAR)
                      @scan_position = xsp
                      if scan_token(TokenManager::IMAGE_LABEL)
                        @scan_position = xsp
                        if scan_token(TokenManager::GT)
                          @scan_position = xsp
                          if scan_token(TokenManager::LBRACK)
                            @scan_position = xsp
                            if scan_token(TokenManager::LPAREN)
                              @scan_position = xsp
                              if scan_token(TokenManager::LT)
                                @scan_position = xsp
                                if scan_token(TokenManager::RBRACK)
                                  @scan_position = xsp
                                  if scan_token(TokenManager::UNDERSCORE)
                                    @scan_position = xsp
                                    @looking_ahead = true
                                    @semantic_look_ahead = !next_after_space(TokenManager::RPAREN)
                                    @looking_ahead = false
                                    return !@semantic_look_ahead || scan_whitespace_token
                                  end
                                end
                              end
                            end
                          end
                        end
                      end
                    end
                  end
                end
              end
            end
          end
        end
      end
    end
  end
  false
end

#scan_resource_text_elements ⇒ Object 



2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
 
# File 'lib/koara/parser.rb', line 2164

def scan_resource_text_elements
  while true
    xsp = @scan_position
    if scan_resource_text_element
      @scan_position = xsp
      break
    end
  end
  false
end

#scan_resource_url ⇒ Object 



2175
2176
2177
 
# File 'lib/koara/parser.rb', line 2175

def scan_resource_url
  scan_token(TokenManager::LPAREN) || scan_whitespace_tokens || scan_resource_text_elements || scan_whitespace_tokens || scan_token(TokenManager::RPAREN)
end

#scan_strong ⇒ Object 



2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
 
# File 'lib/koara/parser.rb', line 2008

def scan_strong
  return true if scan_token(TokenManager::ASTERISK) || scan_strong_elements
  while true
    xsp = @scan_position
    if scan_strong_elements
      @scan_position = xsp
      break
    end
  end
  scan_token(TokenManager::ASTERISK)
end

#scan_strong_elements ⇒ Object 



1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
 
# File 'lib/koara/parser.rb', line 1978

def scan_strong_elements
  xsp = @scan_position
  if scan_text_tokens
    @scan_position = xsp
    if scan_image
      @scan_position = xsp
      if scan_link
        @scan_position = xsp
        @looking_ahead = true
        @semantic_look_ahead = multiline_ahead(TokenManager::BACKTICK)
        @looking_ahead = false
        if !@semantic_look_ahead || scan_code_multiline
          @scan_position = xsp
          if scan_em_within_strong
            @scan_position = xsp
            if scan_token(TokenManager::BACKTICK)
              @scan_position = xsp
              if scan_token(TokenManager::LBRACK)
                @scan_position = xsp
                return scan_token(TokenManager::UNDERSCORE)
              end
            end
          end
        end
      end
    end
  end
  false
end

#scan_strong_multiline_elements ⇒ Object 



2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
 
# File 'lib/koara/parser.rb', line 2068

def scan_strong_multiline_elements
  xsp = @scan_position
  if scan_text_tokens
    @scan_position = xsp
    if scan_image
      @scan_position = xsp
      if scan_link
        @scan_position = xsp
        if scan_code
          @scan_position = xsp
          if scan_em_within_strong_multiline
            @scan_position = xsp
            if scan_token(TokenManager::BACKTICK)
              @scan_position = xsp
              if scan_token(TokenManager::LBRACK)
                @scan_position = xsp
                return scan_token(TokenManager::UNDERSCORE)
              end
            end
          end
        end
      end
    end
  end
  false
end

#scan_strong_within_em ⇒ Object 



1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
 
# File 'lib/koara/parser.rb', line 1966

def scan_strong_within_em
  return true if scan_token(TokenManager::ASTERISK) || scan_strong_within_em_elements
  while true
    xsp = @scan_position
    if scan_strong_within_em_elements
      @scan_position = xsp
      break
    end
  end
  scan_token(TokenManager::ASTERISK)
end

#scan_strong_within_em_elements ⇒ Object 



1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
 
# File 'lib/koara/parser.rb', line 1942

def scan_strong_within_em_elements
  xsp = @scan_position
  if scan_text_tokens
    @scan_position = xsp
    if scan_image
      @scan_position = xsp
      if scan_link
        @scan_position = xsp
        if scan_code
          @scan_position = xsp
          if scan_token(TokenManager::BACKTICK)
            @scan_position = xsp
            if scan_token(TokenManager::LBRACK)
              @scan_position = xsp
              return scan_token(TokenManager::UNDERSCORE)
            end
          end
        end
      end
    end
  end
  false
end

#scan_strong_within_em_multiline ⇒ Object 



2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
 
# File 'lib/koara/parser.rb', line 2056

def scan_strong_within_em_multiline
  return true if scan_token(TokenManager::ASTERISK) || scan_for_more_strong_within_em_multiline_elements
  while true
    xsp = @scan_position
    if scan_whitespace_token_before_eol || scan_for_more_strong_within_em_multiline_elements
      @scan_position = xsp
      break
    end
  end
  scan_token(TokenManager::ASTERISK)
end

#scan_strong_within_em_multiline_elements ⇒ Object 



2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
 
# File 'lib/koara/parser.rb', line 2020

def scan_strong_within_em_multiline_elements
  xsp = @scan_position
  if scan_text_tokens
    @scan_position = xsp
    if scan_image
      @scan_position = xsp
      if scan_link
        @scan_position = xsp
        if scan_code
          @scan_position = xsp
          if scan_token(TokenManager::BACKTICK)
            @scan_position = xsp
            if scan_token(TokenManager::LBRACK)
              @scan_position = xsp
              return scan_token(TokenManager::UNDERSCORE)
            end
          end
        end
      end
    end
  end
  false
end

#scan_text ⇒ Object 



1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
 
# File 'lib/koara/parser.rb', line 1605

def scan_text
  xsp = @scan_position
  if scan_token(TokenManager::BACKSLASH)
    @scan_position = xsp
    if scan_token(TokenManager::CHAR_SEQUENCE)
      @scan_position = xsp
      if scan_token(TokenManager::COLON)
        @scan_position = xsp
        if scan_token(TokenManager::DASH)
          @scan_position = xsp
          if scan_token(TokenManager::DIGITS)
            @scan_position = xsp
            if scan_token(TokenManager::DOT)
              @scan_position = xsp
              if scan_token(TokenManager::EQ)
                @scan_position = xsp
                if scan_token(TokenManager::ESCAPED_CHAR)
                  @scan_position = xsp
                  if scan_token(TokenManager::GT)
                    @scan_position = xsp
                    if scan_token(TokenManager::IMAGE_LABEL)
                      @scan_position = xsp
                      if scan_token(TokenManager::LPAREN)
                        @scan_position = xsp
                        if scan_token(TokenManager::LT)
                          @scan_position = xsp
                          if scan_token(TokenManager::RBRACK)
                            @scan_position = xsp
                            if scan_token(TokenManager::RPAREN)
                              @scan_position = xsp
                              @looking_ahead = true
                              @semantic_look_ahead = !next_after_space(TokenManager::EOL, TokenManager::EOF)
                              @looking_ahead = false
                              return (!@semantic_look_ahead || scan_whitespace_token)
                            end
                          end
                        end
                      end
                    end
                  end
                end
              end
            end
          end
        end
      end
    end
  end
  false
end

#scan_text_tokens ⇒ Object 



1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
 
# File 'lib/koara/parser.rb', line 1656

def scan_text_tokens
  return true if scan_text
  while true
    xsp = @scan_position
    if scan_text
      @scan_position = xsp
      break
    end
  end
  false
end

#scan_token(kind) ⇒ Object 



2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
 
# File 'lib/koara/parser.rb', line 2414

def scan_token(kind)
  if @scan_position == @last_position
    @look_ahead -= 1
    if @scan_position.next.nil?
      @last_position = @scan_position = @scan_position.next = @tm.get_next_token
    else
      @last_position = @scan_position = @scan_position.next
    end
  else
    @scan_position = @scan_position.next
  end
  if @scan_position.kind != kind
    return true
  end

  if (@look_ahead == 0) && (@scan_position == @last_position)
    raise @look_ahead_success
  end
  false
end

#scan_whitespace_token ⇒ Object 



2349
2350
2351
2352
2353
2354
2355
2356
 
# File 'lib/koara/parser.rb', line 2349

def scan_whitespace_token
  xsp = @scan_position
  if scan_token(TokenManager::SPACE)
    @scan_position = xsp
    return true if scan_token(TokenManager::TAB)
  end
  false
end

#scan_whitespace_token_before_eol ⇒ Object 



1781
1782
1783
 
# File 'lib/koara/parser.rb', line 1781

def scan_whitespace_token_before_eol
  return scan_whitespace_tokens || scan_token(TokenManager::EOL)
end

#scan_whitespace_tokens ⇒ Object 



1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
 
# File 'lib/koara/parser.rb', line 1770

def scan_whitespace_tokens
  while true
    xsp = @scan_position
    if scan_whitespace_token
      @scan_position = xsp
      break
    end
  end
  false
end

#skip(offset, *tokens) ⇒ Object 



1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
 
# File 'lib/koara/parser.rb', line 1198

def skip(offset, *tokens)
  i = offset
  loop do
    t = get_token(i)
    unless tokens.include?(t.kind)
      return i
    end
    i+=1
  end
end

#strong ⇒ Object 



462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
 
# File 'lib/koara/parser.rb', line 462

def strong
  strong = Ast::Strong.new
  @tree.open_scope
  consume_token(TokenManager::ASTERISK)
  while strong_has_elements
    if has_text_ahead
      text
    elsif modules.include?('images') && has_image
      image
    elsif modules.include?('links') && has_link_ahead
      link
    elsif modules.include?('code') && multiline_ahead(TokenManager::BACKTICK)
      code_multiline
    elsif strong_em_within_strong_ahead
      em_within_strong
    else
      case get_next_token_kind
        when TokenManager::BACKTICK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::BACKTICK))
        when TokenManager::LBRACK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::LBRACK))
        when TokenManager::UNDERSCORE
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::UNDERSCORE))
        else
          break
      end
    end
  end
  consume_token(TokenManager::ASTERISK)
  @tree.close_scope(strong)
end

#strong_em_within_strong_ahead ⇒ Object 



1480
1481
1482
1483
1484
1485
1486
1487
1488
 
# File 'lib/koara/parser.rb', line 1480

def strong_em_within_strong_ahead
  @look_ahead = 2147483647
  @last_position = @scan_position = @token
  begin
    return !scan_em_within_strong
  rescue LookaheadSuccess
    return true
  end
end

#strong_has_elements ⇒ Object 



1490
1491
1492
1493
1494
1495
1496
1497
1498
 
# File 'lib/koara/parser.rb', line 1490

def strong_has_elements
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_strong_elements
  rescue LookaheadSuccess
    return true
  end
end

#strong_multiline ⇒ Object 



813
814
815
816
817
818
819
820
821
822
823
824
825
 
# File 'lib/koara/parser.rb', line 813

def strong_multiline
  strong = Ast::Strong.new
  @tree.open_scope
  consume_token(TokenManager::ASTERISK)
  strong_multiline_content
  while text_ahead
    line_break
    white_space
    strong_multiline_content
  end
  consume_token(TokenManager::ASTERISK)
  @tree.close_scope(strong)
end

#strong_multiline_content ⇒ Object 



827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
 
# File 'lib/koara/parser.rb', line 827

def strong_multiline_content
  loop do
    if has_text_ahead
      text
    elsif modules.include?('images') && has_image_ahead
      image
    elsif modules.include?('links') && has_link_ahead
      link
    elsif modules.include?('code') && has_code_ahead
      code
    elsif has_em_within_strong_multiline
      em_within_strong_multiline
    else
      case get_next_token_kind
        when TokenManager::BACKTICK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::BACKTICK))
        when TokenManager::LBRACK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::LBRACK))
        when TokenManager::UNDERSCORE
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::UNDERSCORE))
      end
    end
    break unless strong_multiline_has_elements_ahead
  end
end

#strong_multiline_has_elements_ahead ⇒ Object 



1440
1441
1442
1443
1444
1445
1446
1447
1448
 
# File 'lib/koara/parser.rb', line 1440

def strong_multiline_has_elements_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_strong_multiline_elements
  rescue LookaheadSuccess
    return true
  end
end

#strong_within_em ⇒ Object 



890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
 
# File 'lib/koara/parser.rb', line 890

def strong_within_em
  strong = Ast::Strong.new
  @tree.open_scope
  consume_token(TokenManager::ASTERISK)
  loop do
    if has_text_ahead
      text
    elsif modules.include?('images') && has_image_ahead
      image
    elsif modules.include?('links') && has_link_ahead
      link
    elsif modules.include?('code') && has_code_ahead
      code
    else
      case get_next_token_kind
        when TokenManager::BACKTICK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::BACKTICK))
        when TokenManager::LBRACK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::LBRACK))
        when TokenManager::UNDERSCORE
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::UNDERSCORE))
      end
    end
    break unless strong_within_em_has_elements_ahead
  end
  consume_token(TokenManager::ASTERISK)
  @tree.close_scope(strong)
end

#strong_within_em_has_elements_ahead ⇒ Object 



1500
1501
1502
1503
1504
1505
1506
1507
1508
 
# File 'lib/koara/parser.rb', line 1500

def strong_within_em_has_elements_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_strong_within_em_elements
  rescue LookaheadSuccess
    return true
  end
end

#strong_within_em_multiline ⇒ Object 



853
854
855
856
857
858
859
860
861
862
863
864
 
# File 'lib/koara/parser.rb', line 853

def strong_within_em_multiline
  strong = Ast::Strong.new
  @tree.open_scope
  consume_token(TokenManager::ASTERISK)
  strong_within_em_multiline_content
  while text_ahead
    line_break
    strong_within_em_multiline_content
  end
  consume_token(TokenManager::ASTERISK)
  @tree.close_scope(strong)
end

#strong_within_em_multiline_content ⇒ Object 



866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
 
# File 'lib/koara/parser.rb', line 866

def strong_within_em_multiline_content
  loop do
    if has_text_ahead
      text
    elsif modules.include?('images') && has_image_ahead
      image
    elsif modules.include?('links') && has_link_ahead
      link
    elsif modules.include?('code') && has_code_ahead
      code
    else
      case get_next_token_kind
        when TokenManager::BACKTICK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::BACKTICK))
        when TokenManager::LBRACK
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::LBRACK))
        when TokenManager::UNDERSCORE
          @tree.add_single_value(Ast::Text.new, consume_token(TokenManager::UNDERSCORE))
      end
    end
    break unless strong_within_em_multiline_has_elements_ahead
  end
end

#strong_within_em_multiline_has_elements_ahead ⇒ Object 



1450
1451
1452
1453
1454
1455
1456
1457
1458
 
# File 'lib/koara/parser.rb', line 1450

def strong_within_em_multiline_has_elements_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_strong_within_em_multiline_elements
  rescue LookaheadSuccess
    return true
  end
end

#text ⇒ Object 



360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
 
# File 'lib/koara/parser.rb', line 360

def text
  text = Ast::Text.new
  @tree.open_scope
  s = StringIO.new('')
  while text_has_tokens_ahead
    case get_next_token_kind
      when TokenManager::CHAR_SEQUENCE
        s << consume_token(TokenManager::CHAR_SEQUENCE).image
      when TokenManager::BACKSLASH
        s << consume_token(TokenManager::BACKSLASH).image
      when TokenManager::COLON
        s << consume_token(TokenManager::COLON).image
      when TokenManager::DASH
        s << consume_token(TokenManager::DASH).image
      when TokenManager::DIGITS
        s << consume_token(TokenManager::DIGITS).image
      when TokenManager::DOT
        s << consume_token(TokenManager::DOT).image
      when TokenManager::EQ
        s << consume_token(TokenManager::EQ).image
      when TokenManager::ESCAPED_CHAR
        s << consume_token(TokenManager::ESCAPED_CHAR).image[1..-1]
      when TokenManager::GT
        s << consume_token(TokenManager::GT).image
      when TokenManager::IMAGE_LABEL
        s << consume_token(TokenManager::IMAGE_LABEL).image
      when TokenManager::LPAREN
        s << consume_token(TokenManager::LPAREN).image
      when TokenManager::LT
        s << consume_token(TokenManager::LT).image
      when TokenManager::RBRACK
        s << consume_token(TokenManager::RBRACK).image
      when TokenManager::RPAREN
        s << consume_token(TokenManager::RPAREN).image
      else
        case get_next_token_kind
          when TokenManager::SPACE
            s << consume_token(TokenManager::SPACE).image
          when TokenManager::TAB
            consume_token(TokenManager::TAB)
            s << '    '
        end unless next_after_space(TokenManager::EOL, TokenManager::EOF)
    end
  end
  text.value = s.string
  @tree.close_scope(text)
end

#text_ahead ⇒ Object 



1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
 
# File 'lib/koara/parser.rb', line 1162

def text_ahead
  if get_next_token_kind == TokenManager::EOL && get_token(2).kind != TokenManager::EOL
    i = skip(2, TokenManager::SPACE, TokenManager::TAB)
    quote_level = new_quote_level(i)
    if (quote_level == @current_quote_level || !@modules.include?('blockquotes'))
      i = skip(i, TokenManager::SPACE, TokenManager::TAB, TokenManager::GT)

      t = get_token(i)
      return get_token(i).kind != TokenManager::EOL && !(@modules.include?('lists') && t.kind == TokenManager::DASH) \
      && !(@modules.include?('lists') && t.kind == TokenManager::DIGITS && get_token(i + 1).kind == TokenManager::DOT) \
      && !(get_token(i).kind == TokenManager::BACKTICK && get_token(i + 1).kind == TokenManager::BACKTICK && get_token(i + 2).kind == TokenManager::BACKTICK) \
      && !(@modules.include?('headings') && heading_ahead(i))
    end
  end
  false
end

#text_has_tokens_ahead ⇒ Object 



1580
1581
1582
1583
1584
1585
1586
1587
1588
 
# File 'lib/koara/parser.rb', line 1580

def text_has_tokens_ahead
  @look_ahead = 1
  @last_position = @scan_position = @token
  begin
    return !scan_text
  rescue LookaheadSuccess
    return true
  end
end

#unordered_list ⇒ Object 



174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
 
# File 'lib/koara/parser.rb', line 174

def unordered_list
  list = Ast::ListBlock.new(false)
  @tree.open_scope
  list_begin_column = unordered_list_item
  while list_item_ahead(list_begin_column, false)
    while get_next_token_kind == TokenManager::EOL
      consume_token(TokenManager::EOL)
    end
    white_space
    if @current_quote_level > 0
      block_quote_prefix
    end
    unordered_list_item
  end
  @tree.close_scope(list)
end

#unordered_list_item ⇒ Object 



191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
 
# File 'lib/koara/parser.rb', line 191

def unordered_list_item
  list_item = Ast::ListItem.new
  @tree.open_scope

  t = consume_token(TokenManager::DASH)
  white_space
  if list_item_has_inline_elements
    block_element
    while block_ahead(t.begin_column)
      while get_next_token_kind == TokenManager::EOL
        consume_token(TokenManager::EOL)
        white_space
        if @current_quote_level > 0
          block_quote_prefix
        end
      end
      block_element
    end
  end
  @tree.close_scope(list_item)
  t.begin_column
end

#white_space ⇒ Object 



1043
1044
1045
1046
1047
 
# File 'lib/koara/parser.rb', line 1043

def white_space
  while get_next_token_kind == TokenManager::SPACE || get_next_token_kind == TokenManager::TAB
    consume_token(get_next_token_kind)
  end
end