Lars, The basic problem with the Norwegian table, No-No-g0.utb is that more than one character is defined with the same single-cell dot pattern. This is permissible but the first character for which a given single-cell dot pattern is defined will be used as the back-translation whenever this dot pattern is encountered. The present file also includes a file called no-no.dis which contains only display opcodes. This is unnecessary with present-day liblouis, though it wasn't in the early days. It is an additional source of confusion. The character-definition opcodes can now do the job. Display opcodes are needed only if you are using an embosser or braille display whose internal translation table defines dot patterns diffrent from those in the character-definition opcodes. This is explained in more detail in liblouis-guide.html . I am pasting the file chardefs.cti which I use for U.S. English, into this message as an example. I am also attaching it, to see how the list handles attachments. -------------------- # Attributes and dot patterns for unicode characters 0-255 # Computer braille single-cell characters space \s 0 blank space \t 9 tab space \x000a 0 newline space \x000c 0 space \x000d 0 carriage return space \x001b 1b escape character for html back-translation space \x00A0 a NO-BREAK SPACE <noBreak> 0020 NON-BREAKING SPACE digit 0 356 digit 1 2 digit 2 23 digit 3 25 digit 4 256 digit 5 26 digit 6 235 digit 7 2356 digit 8 236 digit 9 35 uplow Aa 17,1 uplow Bb 127,12 uplow Cc 147,14 uplow Dd 1457,145 uplow Ee 157,15 uplow Ff 1247,124 uplow Gg 12457,1245 uplow Hh 1257,125 uplow Ii 247,24 uplow Jj 2457,245 uplow Kk 137,13 uplow Ll 1237,123 uplow Mm 1347,134 uplow Nn 13457,1345 uplow Oo 1357,135 uplow Pp 12347,1234 uplow Qq 123457,12345 uplow Rr 12357,1235 uplow Ss 2347,234 uplow Tt 23457,2345 uplow Uu 1367,136 uplow Vv 12367,1236 uplow Ww 24567,2456 uplow Xx 13467,1346 uplow Yy 134567,13456 uplow Zz 13567,1356 punctuation ( 12356 punctuation } 12456 punctuation ] 124567 punctuation ? 1456 punctuation : 156 punctuation ) 23456 punctuation ! 2346 punctuation { 246 punctuation [ 2467 punctuation ' 3 punctuation - 36 punctuation . 46 punctuation " 5 punctuation ; 56 punctuation , 6 sign & 12346 sign $ 1246 sign | 1256 sign \\ 12567 sign % 146 sign * 16 sign # 3456 sign ` 4 sign _ 456 sign ^ 457 sign @ 47 math = 123456 math < 126 math / 34 math > 345 math + 346 math ~ 45 # Accented letters lowercase \x00DF 4-234 LATIN SMALL LETTER SHARP S German lowercase \x00E0 4-1 LATIN SMALL LETTER A WITH GRAVE 0061 0300 LATIN lowercase \x00E1 4-1 LATIN SMALL LETTER A WITH ACUTE 0061 0301 LATIN lowercase \x00E2 4-1 LATIN SMALL LETTER A WITH CIRCUMFLEX 0061 0302 lowercase \x00E3 4-1 LATIN SMALL LETTER A WITH TILDE 0061 0303 LATIN lowercase \x00E4 4-1 LATIN SMALL LETTER A WITH DIAERESIS 0061 0308 LATIN lowercase \x00E5 4-1 LATIN SMALL LETTER A WITH RING ABOVE 0061 030A lowercase \x00E6 4-1 LATIN SMALL LETTER AE LATIN SMALL LETTER A E ash * lowercase \x00E7 4-14 LATIN SMALL LETTER C WITH CEDILLA 0063 0327 LATIN lowercase \x00E8 4-15 LATIN SMALL LETTER E WITH GRAVE 0065 0300 LATIN lowercase \x00E9 4-15 LATIN SMALL LETTER E WITH ACUTE 0065 0301 LATIN lowercase \x00EA 4-15 LATIN SMALL LETTER E WITH CIRCUMFLEX 0065 0302 lowercase \x00EB 4-15 LATIN SMALL LETTER E WITH DIAERESIS 0065 0308 lowercase \x00EC 4-24 LATIN SMALL LETTER I WITH GRAVE 0069 0300 LATIN lowercase \x00ED 4-24 LATIN SMALL LETTER I WITH ACUTE 0069 0301 LATIN lowercase \x00EE 4-24 LATIN SMALL LETTER I WITH CIRCUMFLEX 0069 0302 lowercase \x00EF 4-24 LATIN SMALL LETTER I WITH DIAERESIS 0069 0308 lowercase \x00F0 4-15 LATIN SMALL LETTER ETH Icelandic 00D0 00D0 lowercase \x00F1 4-1345 LATIN SMALL LETTER N WITH TILDE 006E 0303 LATIN lowercase \x00F2 4-135 LATIN SMALL LETTER O WITH GRAVE 006F 0300 LATIN lowercase \x00F3 4-135 LATIN SMALL LETTER O WITH ACUTE 006F 0301 LATIN lowercase \x00F4 4-135 LATIN SMALL LETTER O WITH CIRCUMFLEX 006F 0302 lowercase \x00F5 4-135 LATIN SMALL LETTER O WITH TILDE 006F 0303 LATIN lowercase \x00F6 4-135 LATIN SMALL LETTER O WITH DIAERESIS 006F 0308 lowercase \x00F8 4-135 LATIN SMALL LETTER O WITH STROKE LATIN SMALL lowercase \x00F9 4-136 LATIN SMALL LETTER U WITH GRAVE 0075 0300 LATIN lowercase \x00FA 4-136 LATIN SMALL LETTER U WITH ACUTE 0075 0301 LATIN lowercase \x00FB 4-136 LATIN SMALL LETTER U WITH CIRCUMFLEX 0075 0302 lowercase \x00FC 4-136 LATIN SMALL LETTER U WITH DIAERESIS 0075 0308 lowercase \x00FD 4-13456 LATIN SMALL LETTER Y WITH ACUTE 0079 0301 LATIN lowercase \x00FE 4-2345 LATIN SMALL LETTER THORN Icelandic 00DE 00DE lowercase \x00FF 4-13456 LATIN SMALL LETTER Y WITH DIAERESIS 0079 0308 uppercase \x00C0 4-1 LATIN CAPITAL LETTER A WITH GRAVE 0041 0300 LATIN uppercase \x00C1 4-1 LATIN CAPITAL LETTER A WITH ACUTE 0041 0301 LATIN uppercase \x00C2 4-1 LATIN CAPITAL LETTER A WITH CIRCUMFLEX 0041 0302 uppercase \x00C3 4-1 LATIN CAPITAL LETTER A WITH TILDE 0041 0303 LATIN uppercase \x00C4 4-1 LATIN CAPITAL LETTER A WITH DIAERESIS 0041 0308 uppercase \x00C5 4-1 LATIN CAPITAL LETTER A WITH RING ABOVE 0041 030A uppercase \x00C6 4-1 LATIN CAPITAL LETTER AE LATIN CAPITAL LETTER A E uppercase \x00C7 4-14 LATIN CAPITAL LETTER C WITH CEDILLA 0043 0327 uppercase \x00C8 4-15 LATIN CAPITAL LETTER E WITH GRAVE 0045 0300 LATIN uppercase \x00C9 4-15 LATIN CAPITAL LETTER E WITH ACUTE 0045 0301 LATIN uppercase \x00CA 4-15 LATIN CAPITAL LETTER E WITH CIRCUMFLEX 0045 0302 uppercase \x00CB 4-15 LATIN CAPITAL LETTER E WITH DIAERESIS 0045 0308 uppercase \x00CC 4-24 LATIN CAPITAL LETTER I WITH GRAVE 0049 0300 LATIN uppercase \x00CD 4-24 LATIN CAPITAL LETTER I WITH ACUTE 0049 0301 LATIN uppercase \x00CE 4-24 LATIN CAPITAL LETTER I WITH CIRCUMFLEX 0049 0302 uppercase \x00CF 4-24 LATIN CAPITAL LETTER I WITH DIAERESIS 0049 0308 uppercase \x00D0 4-15 LATIN CAPITAL LETTER ETH Icelandic 00F0 uppercase \x00D1 4-1345 LATIN CAPITAL LETTER N WITH TILDE 004E 0303 uppercase \x00D2 4-135 LATIN CAPITAL LETTER O WITH GRAVE 004F 0300 LATIN uppercase \x00D3 4-135 LATIN CAPITAL LETTER O WITH ACUTE 004F 0301 LATIN uppercase \x00D4 4-135 LATIN CAPITAL LETTER O WITH CIRCUMFLEX 004F 0302 uppercase \x00D6 4-135 LATIN CAPITAL LETTER O WITH DIAERESIS 004F 0308 uppercase \x00D8 4-135 LATIN CAPITAL LETTER O WITH STROKE LATIN CAPITAL uppercase \x00D9 4-136 LATIN CAPITAL LETTER U WITH GRAVE 0055 0300 LATIN uppercase \x00DA 4-136 LATIN CAPITAL LETTER U WITH ACUTE 0055 0301 LATIN uppercase \x00DB 4-136 LATIN CAPITAL LETTER U WITH CIRCUMFLEX 0055 0302 uppercase \x00DC 4-136 LATIN CAPITAL LETTER U WITH DIAERESIS 0055 0308 uppercase \x00DD 4-13456 LATIN CAPITAL LETTER Y WITH ACUTE 0059 0301 uppercase \x00DE 4-2345 LATIN CAPITAL LETTER THORN Icelandic 00FE # Miscellaneous math \x00B1 346-36 PLUS-MINUS SIGN PLUS-OR-MINUS SIGN math \x00B7 4-16 MIDDLE DOT math \x00BC 1456-2-34-256-3456 VULGAR FRACTION ONE QUARTER No 0031 2044 math \x00BD 1456-2-34-23-3456 VULGAR FRACTION ONE HALF No 0031 2044 0032 math \x00BE 1456-25-34-23-3456 VULGAR FRACTION THREE QUARTERS No 0033 math \x00D7 16 MULTIPLICATION SIGN math \x00F7 4-34 DIVISION SIGN punctuation \x0097 36-36 punctuation \x00A1 235 INVERTED EXCLAMATION MARK punctuation \x00ad 36 punctuation \x00BF 236 INVERTED QUESTION MARK punctuation \x2011 36 punctuation \x2013 36-36 punctuation \x2014 36-36 punctuation \x2018 6-236 punctuation \x2019 3 punctuation \x2019 356-3 punctuation \x201c 236 punctuation \x201d 356 punctuation \x2026 3 sign \x00A2 4-14 CENT SIGN sign \x00A3 3456 POUND SIGN sign \x00A4 1246 CURRENCY SIGN sign \x00A7 4-234 SECTION SIGN sign \x00A9 12356-6-14-23456 COPYRIGHT SIGN sign \x00AE 2356-1235-2356 REGISTERED SIGN REGISTERED TRADE MARK SIGN sign \x00B0 56-145-1245 DEGREE SIGN sign \x00B4 b4 ACUTE ACCENT 0020 0301 SPACING ACUTE sign \x00B5 46-134 MICRO SIGN 03BC 039C 039C # sign \x00A5 YEN SIGN # sign \x00A6 BROKEN BAR BROKEN VERTICAL BAR # sign \x00A8 DIAERESIS 0020 0308 SPACING DIAERESIS # sign \x00AA FEMININE ORDINAL INDICATOR 0061 # punctuation \x00AB LEFT-POINTING DOUBLE ANGLE QUOTATION MARK LEFT # sign \x00AC NOT SIGN # sign \x00AF MACRON 0020 0304 SPACING MACRON # math \x00B2 SUPERSCRIPT TWO 0032 2 2 SUPERSCRIPT DIGIT TWO # math \x00B3 SUPERSCRIPT THREE 0033 3 3 SUPERSCRIPT DIGIT THREE # sign \x00B6 PILCROW SIGN PARAGRAPH SIGN # sign \x00B8 CEDILLA 0020 0327 SPACING CEDILLA # math \x00B9 SUPERSCRIPT ONE 0031 1 1 SUPERSCRIPT DIGIT ONE # sign \x00BA MASCULINE ORDINAL INDICATOR 006F # punctuation \x00BB RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK Pf Y -- John J. boyer; President, Chief Software Developer JJB Software, Inc. http://www.jjb-software.com Madison, WI USA Developing software for people with disabilities
# Attributes and dot patterns for unicode characters 0-255 # Computer braille single-cell characters space \s 0 blank space \t 9 tab space \x000a 0 newline space \x000c 0 space \x000d 0 carriage return space \x001b 1b escape character for html back-translation space \x00A0 a NO-BREAK SPACE <noBreak> 0020 NON-BREAKING SPACE digit 0 356 digit 1 2 digit 2 23 digit 3 25 digit 4 256 digit 5 26 digit 6 235 digit 7 2356 digit 8 236 digit 9 35 uplow Aa 17,1 uplow Bb 127,12 uplow Cc 147,14 uplow Dd 1457,145 uplow Ee 157,15 uplow Ff 1247,124 uplow Gg 12457,1245 uplow Hh 1257,125 uplow Ii 247,24 uplow Jj 2457,245 uplow Kk 137,13 uplow Ll 1237,123 uplow Mm 1347,134 uplow Nn 13457,1345 uplow Oo 1357,135 uplow Pp 12347,1234 uplow Qq 123457,12345 uplow Rr 12357,1235 uplow Ss 2347,234 uplow Tt 23457,2345 uplow Uu 1367,136 uplow Vv 12367,1236 uplow Ww 24567,2456 uplow Xx 13467,1346 uplow Yy 134567,13456 uplow Zz 13567,1356 punctuation ( 12356 punctuation } 12456 punctuation ] 124567 punctuation ? 1456 punctuation : 156 punctuation ) 23456 punctuation ! 2346 punctuation { 246 punctuation [ 2467 punctuation ' 3 punctuation - 36 punctuation . 46 punctuation " 5 punctuation ; 56 punctuation , 6 sign & 12346 sign $ 1246 sign | 1256 sign \\ 12567 sign % 146 sign * 16 sign # 3456 sign ` 4 sign _ 456 sign ^ 457 sign @ 47 math = 123456 math < 126 math / 34 math > 345 math + 346 math ~ 45 # Accented letters lowercase \x00DF 4-234 LATIN SMALL LETTER SHARP S German lowercase \x00E0 4-1 LATIN SMALL LETTER A WITH GRAVE 0061 0300 LATIN lowercase \x00E1 4-1 LATIN SMALL LETTER A WITH ACUTE 0061 0301 LATIN lowercase \x00E2 4-1 LATIN SMALL LETTER A WITH CIRCUMFLEX 0061 0302 lowercase \x00E3 4-1 LATIN SMALL LETTER A WITH TILDE 0061 0303 LATIN lowercase \x00E4 4-1 LATIN SMALL LETTER A WITH DIAERESIS 0061 0308 LATIN lowercase \x00E5 4-1 LATIN SMALL LETTER A WITH RING ABOVE 0061 030A lowercase \x00E6 4-1 LATIN SMALL LETTER AE LATIN SMALL LETTER A E ash * lowercase \x00E7 4-14 LATIN SMALL LETTER C WITH CEDILLA 0063 0327 LATIN lowercase \x00E8 4-15 LATIN SMALL LETTER E WITH GRAVE 0065 0300 LATIN lowercase \x00E9 4-15 LATIN SMALL LETTER E WITH ACUTE 0065 0301 LATIN lowercase \x00EA 4-15 LATIN SMALL LETTER E WITH CIRCUMFLEX 0065 0302 lowercase \x00EB 4-15 LATIN SMALL LETTER E WITH DIAERESIS 0065 0308 lowercase \x00EC 4-24 LATIN SMALL LETTER I WITH GRAVE 0069 0300 LATIN lowercase \x00ED 4-24 LATIN SMALL LETTER I WITH ACUTE 0069 0301 LATIN lowercase \x00EE 4-24 LATIN SMALL LETTER I WITH CIRCUMFLEX 0069 0302 lowercase \x00EF 4-24 LATIN SMALL LETTER I WITH DIAERESIS 0069 0308 lowercase \x00F0 4-15 LATIN SMALL LETTER ETH Icelandic 00D0 00D0 lowercase \x00F1 4-1345 LATIN SMALL LETTER N WITH TILDE 006E 0303 LATIN lowercase \x00F2 4-135 LATIN SMALL LETTER O WITH GRAVE 006F 0300 LATIN lowercase \x00F3 4-135 LATIN SMALL LETTER O WITH ACUTE 006F 0301 LATIN lowercase \x00F4 4-135 LATIN SMALL LETTER O WITH CIRCUMFLEX 006F 0302 lowercase \x00F5 4-135 LATIN SMALL LETTER O WITH TILDE 006F 0303 LATIN lowercase \x00F6 4-135 LATIN SMALL LETTER O WITH DIAERESIS 006F 0308 lowercase \x00F8 4-135 LATIN SMALL LETTER O WITH STROKE LATIN SMALL lowercase \x00F9 4-136 LATIN SMALL LETTER U WITH GRAVE 0075 0300 LATIN lowercase \x00FA 4-136 LATIN SMALL LETTER U WITH ACUTE 0075 0301 LATIN lowercase \x00FB 4-136 LATIN SMALL LETTER U WITH CIRCUMFLEX 0075 0302 lowercase \x00FC 4-136 LATIN SMALL LETTER U WITH DIAERESIS 0075 0308 lowercase \x00FD 4-13456 LATIN SMALL LETTER Y WITH ACUTE 0079 0301 LATIN lowercase \x00FE 4-2345 LATIN SMALL LETTER THORN Icelandic 00DE 00DE lowercase \x00FF 4-13456 LATIN SMALL LETTER Y WITH DIAERESIS 0079 0308 uppercase \x00C0 4-1 LATIN CAPITAL LETTER A WITH GRAVE 0041 0300 LATIN uppercase \x00C1 4-1 LATIN CAPITAL LETTER A WITH ACUTE 0041 0301 LATIN uppercase \x00C2 4-1 LATIN CAPITAL LETTER A WITH CIRCUMFLEX 0041 0302 uppercase \x00C3 4-1 LATIN CAPITAL LETTER A WITH TILDE 0041 0303 LATIN uppercase \x00C4 4-1 LATIN CAPITAL LETTER A WITH DIAERESIS 0041 0308 uppercase \x00C5 4-1 LATIN CAPITAL LETTER A WITH RING ABOVE 0041 030A uppercase \x00C6 4-1 LATIN CAPITAL LETTER AE LATIN CAPITAL LETTER A E uppercase \x00C7 4-14 LATIN CAPITAL LETTER C WITH CEDILLA 0043 0327 uppercase \x00C8 4-15 LATIN CAPITAL LETTER E WITH GRAVE 0045 0300 LATIN uppercase \x00C9 4-15 LATIN CAPITAL LETTER E WITH ACUTE 0045 0301 LATIN uppercase \x00CA 4-15 LATIN CAPITAL LETTER E WITH CIRCUMFLEX 0045 0302 uppercase \x00CB 4-15 LATIN CAPITAL LETTER E WITH DIAERESIS 0045 0308 uppercase \x00CC 4-24 LATIN CAPITAL LETTER I WITH GRAVE 0049 0300 LATIN uppercase \x00CD 4-24 LATIN CAPITAL LETTER I WITH ACUTE 0049 0301 LATIN uppercase \x00CE 4-24 LATIN CAPITAL LETTER I WITH CIRCUMFLEX 0049 0302 uppercase \x00CF 4-24 LATIN CAPITAL LETTER I WITH DIAERESIS 0049 0308 uppercase \x00D0 4-15 LATIN CAPITAL LETTER ETH Icelandic 00F0 uppercase \x00D1 4-1345 LATIN CAPITAL LETTER N WITH TILDE 004E 0303 uppercase \x00D2 4-135 LATIN CAPITAL LETTER O WITH GRAVE 004F 0300 LATIN uppercase \x00D3 4-135 LATIN CAPITAL LETTER O WITH ACUTE 004F 0301 LATIN uppercase \x00D4 4-135 LATIN CAPITAL LETTER O WITH CIRCUMFLEX 004F 0302 uppercase \x00D6 4-135 LATIN CAPITAL LETTER O WITH DIAERESIS 004F 0308 uppercase \x00D8 4-135 LATIN CAPITAL LETTER O WITH STROKE LATIN CAPITAL uppercase \x00D9 4-136 LATIN CAPITAL LETTER U WITH GRAVE 0055 0300 LATIN uppercase \x00DA 4-136 LATIN CAPITAL LETTER U WITH ACUTE 0055 0301 LATIN uppercase \x00DB 4-136 LATIN CAPITAL LETTER U WITH CIRCUMFLEX 0055 0302 uppercase \x00DC 4-136 LATIN CAPITAL LETTER U WITH DIAERESIS 0055 0308 uppercase \x00DD 4-13456 LATIN CAPITAL LETTER Y WITH ACUTE 0059 0301 uppercase \x00DE 4-2345 LATIN CAPITAL LETTER THORN Icelandic 00FE # Miscellaneous math \x00B1 346-36 PLUS-MINUS SIGN PLUS-OR-MINUS SIGN math \x00B7 4-16 MIDDLE DOT math \x00BC 1456-2-34-256-3456 VULGAR FRACTION ONE QUARTER No 0031 2044 math \x00BD 1456-2-34-23-3456 VULGAR FRACTION ONE HALF No 0031 2044 0032 math \x00BE 1456-25-34-23-3456 VULGAR FRACTION THREE QUARTERS No 0033 math \x00D7 16 MULTIPLICATION SIGN math \x00F7 4-34 DIVISION SIGN punctuation \x0097 36-36 punctuation \x00A1 235 INVERTED EXCLAMATION MARK punctuation \x00ad 36 punctuation \x00BF 236 INVERTED QUESTION MARK punctuation \x2011 36 punctuation \x2013 36-36 punctuation \x2014 36-36 punctuation \x2018 6-236 punctuation \x2019 3 punctuation \x2019 356-3 punctuation \x201c 236 punctuation \x201d 356 punctuation \x2026 3 sign \x00A2 4-14 CENT SIGN sign \x00A3 3456 POUND SIGN sign \x00A4 1246 CURRENCY SIGN sign \x00A7 4-234 SECTION SIGN sign \x00A9 12356-6-14-23456 COPYRIGHT SIGN sign \x00AE 2356-1235-2356 REGISTERED SIGN REGISTERED TRADE MARK SIGN sign \x00B0 56-145-1245 DEGREE SIGN sign \x00B4 b4 ACUTE ACCENT 0020 0301 SPACING ACUTE sign \x00B5 46-134 MICRO SIGN 03BC 039C 039C # sign \x00A5 YEN SIGN # sign \x00A6 BROKEN BAR BROKEN VERTICAL BAR # sign \x00A8 DIAERESIS 0020 0308 SPACING DIAERESIS # sign \x00AA FEMININE ORDINAL INDICATOR 0061 # punctuation \x00AB LEFT-POINTING DOUBLE ANGLE QUOTATION MARK LEFT # sign \x00AC NOT SIGN # sign \x00AF MACRON 0020 0304 SPACING MACRON # math \x00B2 SUPERSCRIPT TWO 0032 2 2 SUPERSCRIPT DIGIT TWO # math \x00B3 SUPERSCRIPT THREE 0033 3 3 SUPERSCRIPT DIGIT THREE # sign \x00B6 PILCROW SIGN PARAGRAPH SIGN # sign \x00B8 CEDILLA 0020 0327 SPACING CEDILLA # math \x00B9 SUPERSCRIPT ONE 0031 1 1 SUPERSCRIPT DIGIT ONE # sign \x00BA MASCULINE ORDINAL INDICATOR 006F # punctuation \x00BB RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK Pf Y