309 lines
13 KiB
Plaintext
309 lines
13 KiB
Plaintext
# liblouis: Lithuanian 6-dot Braille table
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#
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# Copyright (C) 2017, 2025 Rimas Kudelis <rimas@kudelis.lt>
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# Copyright (C) 2017, 2025 Tadas Matusevičius <tadas.matus@gmail.com>
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#
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# This file is part of liblouis.
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#
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# liblouis is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as
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# published by the Free Software Foundation, either version 2.1 of the
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# License, or (at your option) any later version.
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#
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# liblouis is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with liblouis. If not, see
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# <http://www.gnu.org/licenses/>.
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# Current Lithuanian braille alphabet was officially standardized
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# in 2000.
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#
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# Much more complete Lithuanian 6-dot braille was standardized as a
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# National Annex to ISO 17049 in 2019, officially designated as
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# LST ISO 17049:2017/NA:2019. This document is referred to as
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# "the Standard" below. The Standard is available for purchase from
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# the Lithuanian standards body (lsd.lt).
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#
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# The relevant ISO standard is called "Accessible design ‐ Application
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# of braille on signage, equipment and appliances", so the Standard
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# focuses on printed or otherwise preproduced Braille, so, as is often
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# the case, it's very context dependent and has several clashing dot
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# mappings even if you consider literary braille (section NA.1) only.
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#
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# The authors of the Standard were aware of our prior work on this
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# table, but they chose to ignore us, this table, and its existing
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# users entirely, and standardized even the literary Braille differently
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# than we had it already implemented without so much as a discussion
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# with us. Also, the Standard makes no references to Unicode.
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# As a result, this table had to be revamped to become closer to the
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# Standard. It does not match the Standard completely though.
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#
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# Some definitions in this table are marked as noback. Typically they
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# are not defined in the Standard and act as convenience aliases.
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# They are okay to skip if implementing them is not possible.
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###
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### TABLE METADATA
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###
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#-index-name: Lithuanian, 6-dot
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#-display-name: Lithuanian 6-dot braille
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#+language: lt
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#+type: literary
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#+contraction: no
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#+dots: 6
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#+direction: both
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#+version: 2019
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#-updated: 2025
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###
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### WHITESPACE
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###
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include spaces.uti
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###
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### LETTERS
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###
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# Base Latin letters.
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include latinLetterDef6Dots.uti
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# Letters with diacritics which are part of the Lithuanian alphabet.
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lowercase \x0105 16 ą LATIN SMALL LETTER A WITH OGONEK
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lowercase \x010d 146 č LATIN SMALL LETTER C WITH CARON
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lowercase \x0119 156 ę LATIN SMALL LETTER E WITH OGONEK
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lowercase \x0117 345 ė LATIN SMALL LETTER E WITH DOT ABOVE
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lowercase \x012f 246 į LATIN SMALL LETTER I WITH OGONEK
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lowercase \x0161 2346 š LATIN SMALL LETTER S WITH CARON
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lowercase \x0173 346 ų LATIN SMALL LETTER U WITH OGONEK
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lowercase \x016b 1256 ū LATIN SMALL LETTER U WITH MACRON
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lowercase \x017e 126 ž LATIN SMALL LETTER Z WITH CARON
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base uppercase \x0104 \x0105 Ąą LATIN CAPITAL LETTER A WITH OGONEK,LATIN SMALL LETTER A WITH OGONEK
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base uppercase \x010c \x010d Čč LATIN CAPITAL LETTER C WITH CARON,LATIN SMALL LETTER C WITH CARON
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base uppercase \x0118 \x0119 Ęę LATIN CAPITAL LETTER E WITH OGONEK,LATIN SMALL LETTER E WITH OGONEK
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base uppercase \x0116 \x0117 Ėė LATIN CAPITAL LETTER E WITH DOT ABOVE,LATIN SMALL LETTER E WITH DOT ABOVE
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base uppercase \x012e \x012f Įį LATIN CAPITAL LETTER I WITH OGONEK,LATIN SMALL LETTER I WITH OGONEK
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base uppercase \x0160 \x0161 Šš LATIN CAPITAL LETTER S WITH CARON,LATIN SMALL LETTER S WITH CARON
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base uppercase \x0172 \x0173 Ųų LATIN CAPITAL LETTER U WITH OGONEK,LATIN SMALL LETTER U WITH OGONEK
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base uppercase \x016a \x016b Ūū LATIN CAPITAL LETTER U WITH MACRON,LATIN SMALL LETTER U WITH MACRON
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base uppercase \x017d \x017e Žž LATIN CAPITAL LETTER Z WITH CARON,LATIN SMALL LETTER Z WITH CARON
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###
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### DIGITS
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###
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include digits6Dots.uti
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include litdigits6Dots.uti
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###
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### PUNCTUATION
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###
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punctuation \x002c 2 , COMMA
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punctuation \x002e 256 . FULL STOP
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punctuation \x003f 26 ? QUESTION MARK
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punctuation \x0021 235 ! EXCLAMATION MARK
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punctuation \x003a 25 : COLON
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punctuation \x003b 23 ; SEMICOLON
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# Both parentheses are mapped to dots-2356 in section NA.1.2 of
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# the Standard. We map the right one differently to avoid ambiguity.
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punctuation \x0028 2356 ( LEFT PARENTHESIS
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punctuation \x0029 5-2356 ) RIGHT PARENTHESIS
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punctuation \x005b 12356 [ LEFT SQUARE BRACKET
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punctuation \x005d 23456 ] RIGHT SQUARE BRACKET
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punctuation \x007b 5-12356 { LEFT CURLY BRACKET
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punctuation \x007d 5-23456 } RIGHT CURLY BRACKET
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# These are the typographically correct quotes in Lithuania.
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punctuation \x201e 236 „ DOUBLE LOW-9 QUOTATION MARK
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punctuation \x201c 356 “ LEFT DOUBLE QUOTATION MARK
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# Other Quotation marks. None of these are mapped in the Standard.
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punctuation \x0022 56 " QUOTATION MARK
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noback punctuation \x201d 56 ” RIGHT DOUBLE QUOTATION MARK
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noback punctuation \x201f 56 ‟ DOUBLE HIGH-REVERSED-9 QUOTATION MARK
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noback punctuation \x00ab 56 « LEFT-POINTING DOUBLE ANGLE QUOTATION MARK
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noback punctuation \x00bb 56 » RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK
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# The Standard maps apostrophe to dot-3 in section NA.1.5, without
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# mentioning any specific Unicode codepoint. We're mapping dots-3 to
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# ASCII apostrophe, and aliasing all single quote characters to it.
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punctuation \x0027 3 ' APOSTROPHE
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noback punctuation \x2019 3 ’ RIGHT SINGLE QUOTATION MARK
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noback punctuation \x2018 3 ‘ LEFT SINGLE QUOTATION MARK
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noback punctuation \x201a 3 ‚ SINGLE LOW-9 QUOTATION MARK
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noback punctuation \x201b 3 ‛ SINGLE HIGH-REVERSED-9 QUOTATION MARK
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noback punctuation \x2039 3 ‹ SINGLE LEFT-POINTING ANGLE QUOTATION MARK
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noback punctuation \x203a 3 › SINGLE RIGHT-POINTING ANGLE QUOTATION MARK
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# The Standard maps both a dash and a hyphen to 36 in section NA.1.2,
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# without mentioning any specific Unicode codepoints. We map EN DASH
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# to dots-6-36 to make it possible to input it.
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punctuation \x2013 6-36 – EN DASH
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punctuation \x002d 36 - HYPHEN-MINUS
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noback punctuation \x00ad 36 [SOFT HYPHEN]
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noback punctuation \x2010 36 ‐ HYPHEN
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noback punctuation \x2011 36 ‑ NON-BREAKING HYPHEN
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noback punctuation \x2012 36 ‒ FIGURE DASH
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noback punctuation \x2014 36 — EM DASH
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noback punctuation \x2015 36 ― HORIZONTAL BAR
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# Two versions of horizontal ellipsis.
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# Making them consume any further repetitions of the same character.
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noback punctuation \x2026 256-256-256 … HORIZONTAL ELLIPSIS
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noback repeated \x2026 256-256-256 … HORIZONTAL ELLIPSIS
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noback repeated \x002e\x002e\x002e 256-256-256 ... Three times FULL STOP
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###
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### MATHEMATICAL SYMBOLS
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###
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# LESS-THAN SIGN and GREATER-THAN SIGN are also mapped in the Literary
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# Braille section of the Standard (NA.1.2) as angle brackets to the
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# dot patterns we used here. Marking them as sign
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sign \x003c 5-246 < LESS-THAN SIGN
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sign \x003e 5-135 > GREATER-THAN SIGN
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# Most of the operators below are only mapped in section NA2.5.2
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# of the Standard, which talks about Math specifically.
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# They would not have the 4- prefix in the Math context.
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math \x002b 4-235 + PLUS SIGN
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math \x2212 4-36 − MINUS SIGN
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math \x003d 4-2356 = EQUALS SIGN
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noback math \x00b1 4-235-4-36 ± PLUS-MINUS SIGN
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math \x22C5 4-35 ⋅ DOT OPERATOR
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math \x2236 4-25 ∶ RATIO
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noback math \x00d7 4-35 × MULTIPLICATION SIGN
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noback math \x00b7 4-35 · MIDDLE DOT
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noback math \x00f7 4-25 ÷ DIVISION SIGN
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noback math \x2044 34 ⁄ FRACTION SLASH
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noback math \x2215 34 ∕ DIVISION SLASH
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math \x221E 3456-123456 ∞ INFINITY
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# PERCENT SIGN is mapped as dots-245-356 in section NA.1.5 of
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# the Standard, but this doesn't seem to work for input with liblouis,
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# since both of these dot combinations are used for other characters
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# already. We're reusing the definition from the 8-dot standard.
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math \x0025 123456 % PERCENT SIGN
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# The Standard maps DEGREE SIGN without a prefix, but we need the prefix
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# to prevent ambiguity.
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math \x00b0 4-356 ° DEGREE SIGN
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noback math \x2103 4-356-46-14 ℃ DEGREE CELSIUS
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noback math \x2109 4-356-46-124 ℉ DEGREE FAHRENHEIT
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# Vulgar fractions. This is not the mathematically correct notation
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# for fractions; rather, they are decomposed into number-slash-number
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# notation to ease reading of literary texts, cookbooks et cetera.
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noback math \x00BC 3456-1-34-3456-145 ¼ VULGAR FRACTION ONE QUARTER
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noback math \x00BD 3456-1-34-3456-12 ½ VULGAR FRACTION ONE HALF
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noback math \x00BE 3456-14-34-3456-145 ¾ VULGAR FRACTION THREE QUARTERS
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noback math \x2150 3456-1-34-3456-1245 ⅐ VULGAR FRACTION ONE SEVENTH
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noback math \x2151 3456-1-34-3456-24 ⅑ VULGAR FRACTION ONE NINTH
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noback math \x2152 3456-1-34-3456-1-245 ⅒ VULGAR FRACTION ONE TENTH
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noback math \x2153 3456-1-34-3456-14 ⅓ VULGAR FRACTION ONE THIRD
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noback math \x2154 3456-12-34-3456-14 ⅔ VULGAR FRACTION TWO THIRDS
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noback math \x2155 3456-1-34-3456-15 ⅕ VULGAR FRACTION ONE FIFTH
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noback math \x2156 3456-12-34-3456-15 ⅖ VULGAR FRACTION TWO FIFTHS
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noback math \x2157 3456-14-34-3456-15 ⅗ VULGAR FRACTION THREE FIFTHS
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noback math \x2158 3456-145-34-3456-15 ⅘ VULGAR FRACTION FOUR FIFTHS
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noback math \x2159 3456-1-34-3456-124 ⅙ VULGAR FRACTION ONE SIXTH
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noback math \x215A 3456-15-34-3456-124 ⅚ VULGAR FRACTION FIVE SIXTHS
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noback math \x215B 3456-1-34-3456-125 ⅛ VULGAR FRACTION ONE EIGHTH
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noback math \x215C 3456-14-34-3456-125 ⅜ VULGAR FRACTION THREE EIGHTHS
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noback math \x215D 3456-15-34-3456-125 ⅝ VULGAR FRACTION FIVE EIGHTHS
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noback math \x215E 3456-1245-34-3456-125 ⅞ VULGAR FRACTION SEVEN EIGHTHS
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noback math \x215F 3456-1-34 ⅟ FRACTION NUMERATOR ONE
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noback math \x2189 3456-245-34-3456-14 ↉ VULGAR FRACTION ZERO THIRDS
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###
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### CURRENCY SIGNS
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###
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# Currency signs are mapped in section NA.1.7 of the Standard.
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# Dollar sign is mapped to dots-46 without prefix, but that
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# conflicts with the capital letter indicator, so we're re-adding
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# the common prefix.
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sign \x0024 4-46 $ DOLLAR SIGN
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sign \x00a2 4-14 ¢ CENT SIGN
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sign \x00a3 4-123 £ POUND SIGN
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sign \x20ac 4-15 € EURO SIGN
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###
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### OTHER CHARACTERS
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###
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# Some of these characters have different mappings in the Standard,
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# but these often clash with other definitions. In such cases, our
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# definitions differ.
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sign \x0023 5-3456 # NUMBER SIGN
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sign \x0026 12346 & AMPERSAND
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sign \x002a 35 * ASTERISK
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sign \x002f 34 / SOLIDUS
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sign \x0040 5-345 @ COMMERCIAL AT
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sign \x007c 5-456 | VERTICAL LINE
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sign \x00a7 5-346 § SECTION SIGN
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sign \x007e 12456 ~ TILDE
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sign \x0060 5-4 ` GRAVE ACCENT
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# The following five characters are not mapped in the Standard.
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sign \x005c 5-34 \ REVERSE SOLIDUS
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sign \x005e 5-256 ^ CIRCUMFLEX ACCENT
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sign \x005f 1456 _ LOW LINE
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sign \x00b5 5-134 µ MICRO SIGN
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sign \x2022 5-35 • BULLET
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# The following four characters are mapped differently in the Standard.
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sign \x00a9 5-14 © COPYRIGHT SIGN
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sign \x00ae 5-1235 ® REGISTERED SIGN
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sign \x2117 5-1234 ℗ SOUND RECORDING COPYRIGHT
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sign \x2122 5-2345 ™ TRADE MARK SIGN
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noback sign \x2190 5-246-25 ← LEFTWARDS ARROW
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noback sign \x2192 25-5-135 → RIGHTWARDS ARROW
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# Braille patterns.
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include braille-patterns.cti
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###
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### INDICATOR AND SPECIAL SYMBOL OPCODES
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###
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# Emphasis classes.
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emphclass italic
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emphclass underline
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emphclass bold
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begemph italic 456
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endemph italic 456
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begemph bold 456
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endemph bold 456
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begemph underline 456
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endemph underline 456
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decpoint \x002c 2 , COMMA
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# Use lowered question mark as replacement dots.
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noback sign \xfffd 38 <20> REPLACEMENT CHARACTER
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undefined 38 Replacement dots for characters not defined in this table
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capsletter 46 Single capital letter indicator
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begcapsword 45 Capital letter word/block start indicator
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endcapsword 6 Capital letter block end indicator
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numsign 3456 Number start indicator in text
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nonumsign 6 Number block end indicator
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numericnocontchars abcdefghij
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midendnumericmodechars .,:
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