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nemeth_edit_en_ueb_with_switch_indicators.ctb
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# liblouis Table for Post-Translation Editing
#Use it for UEB literary texts surrounding Nemeth math blocks
#Typical usecase:
# mathtextTable en-ueb-g1.ctb or en-ueb-g2.ctb
# mathexprTable nemeth.ctb
# editTable nemeth_edit_en_ueb_with_switch_indicators.ctb
#
# Based on the Linux screenreader BRLTTY, copyright (C) 1999-2006 by
# The BRLTTY Team
#
# Copyright (C) 2004-2006 ViewPlus Technologies, Inc. www.viewplus.com
# Copyright (C) 2004-2006 JJB Software, Inc. www.jjb-software.com
# Copyright (C) 2023 Norbert Márkus (hamilfonz at gmail dot com),
# Hungary
#
# This file is part of liblouis.
#
# liblouis is free software: you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 2.1 of the
# License, or (at your option) any later version.
#
# liblouis is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with liblouis. If not, see
# <http://www.gnu.org/licenses/>.
#liblouisutdml inserts a space before and after each math block to separate it from the literary text.
#Such spaces are often undesirable, e.g., for punctuation and grouping symbols around the math blocks.
#In many cases these signs do not take their most appropriate forms as the math blocks
#are not yet present at the stage of literary Braille translation.
#This table makes a limited attempt to reconstruct the most likely form of some of the signs
#directly preceding or following a math block and to decide which of the automatically added spaces
#are to be kept or removed.
include en-chardefs.cti
#helps decide whether a preceding space can be removed
attribute herethisisapunctuation 432
#when followed by these below, the ones above are punctuations rather than contractions
attribute thecharbeforeitisnotacontraction \x0023-'0
#single-cell signs that may follow a seqafterpattern
attribute wordfinalpunctuation 1234680-
#used to reduce the number of rules dealing with the seqafterpatterns 're and 've
attribute RorV rv
#remove an extra space added by an ellipsis, shape, etc. at the beginning of the math block following the switch indicator
noback correct "\eb\s" "\eb"
repeated \s 0
#unconditionally remove the space before punctuation following a math block
always \ee\s6 1b-15-235 exclamation point
always \ee\s1 1b-15-2 comma
always \ee\s.0 1b-15-46-356 percent sign
always \ee\s- 1b-15-36 hyphen
always \ee\s,- 1b-15-6-36 long dash
always \ee\s",- 1b-15-5-6-36 horizontal line
always \ee\s.- 1b-15-46-36 underline
always \ee\s"9 1b-15-5-3 asterisk
always \ee\s44 1b-15-256-256
#conditional treatment of punctuation and spacing following a math block
#question mark
noback context "\ee"["\s;8"]$s @236 drop the grade-1 prefix
noback context "\ee\s;8"~ @1b-15-236
always \ee\s;8 1b-15-56-236 keep the prefix
#period
always \ee\s;4 1b-15-56-256 preserve the grade-1 prefix
noback context "\ee"["\s4"]$s @256
noback context "\ee\s4"~ @1b-15-256
#colon
always \ee\s;3 1b-15-56-25 preserve the grade-1 prefix
noback context "\ee"["\s3"]$s @25
noback context "\ee\s3"~ @1b-15-25
#semicolon
noback context "\ee"["\s;2"]$s @23 drop the grade-1 prefix
noback context "\ee\s;2"~ @1b-15-23 drop the prefix
always \ee\s;2 1b-15-56-23 keep the prefix
#common rules for periods, colons and semicolons
#drop the space if $w below is a punctuation rather than a contraction
noback context "\ee"["\s"]$w$x ? $w cannot be a contraction here because of $x
noback context "\ee"["\s"]$w",7" ? followed by quotation mark
noback context "\ee"["\s"]$w"`>" ? right angle bracket
noback context "\ee"["\s"]$w"\">" ? right parenthesis
noback context "\ee"["\s"]$w".>" ? right bracket
noback context "\ee"["\s"]$w"_>" ? right brace
noback context "\ee"["\s"]$w"`.>" ? end of transnote
noback context "\ee"["\s"]$w",0" ? right single quote
noback context "\ee"["\s"]$w"\"9" ? asterisk
noback context "\ee"["\s"]$w",-" ? long dash
noback context "\ee"["\s"]$w"\",-" ? horizontal line
noback context "\ee"["\s"]$w".-" ? underline
#conditional treatment of grouping symbols and spacing
#opening apostrophe before a math block
noback context $s["'\s"]"\eb" @6-236
#noback context `["'\s\eb"] @6-236-1b-12 #the ` operand doesn't seem to work
noback context ",7"["'\s"]"\eb" @6-236 preceded by quotation mark
noback context "\"<"["'\s"]"\eb" @6-236 left parenthesis
noback context ".<"["'\s"]"\eb" @6-236 left bracket
noback context ["`_<'\s\eb"] * preserve the apostrophe and space, this is not a grouping symbol: normal subgroup
noback context ["__<'\s\eb"] * preserve the apostrophe and space: normal subgroup or equal
noback context "_<"["'\s"]"\eb" @6-236 preceded by left brace
noback context "`.<"["'\s"]"\eb" @6-236 beginning of transnote
noback context ",8"["'\s"]"\eb" @6-236 left single quote
noback context $a["'\s"]"\eb" @3-0 in any other case preserve the apostrophe and space
noback context ["'\s"]"\eb" @6-236 #assumed to be a single quote at the beginning of the string
#closing apostrophe after a math block
noback context "\ee"["\s'"]$s @6-356
noback context "\ee"["\s'"]~ @6-356
noback context "\ee"["\s'"]",7" @6-356 followed by quotation mark
noback context "\ee"["\s'"]"\">" @6-356 right parenthesis
noback context "\ee"["\s'"]".>" @6-356 right bracket
noback context "\ee"["\s'"]"_>" @6-356 right brace
noback context "\ee"["\s'"]"`.>" @6-356 end of transnote
noback context "\ee"["\s'"]",0" @6-356 right single quote
#opening quotation mark before a math block
noback context $s[",7\s"]"\eb" @236
#noback context `[",7\s\eb"] @236-1b-12 #the ` operand does not appear to be working
noback context "\"<"[",7\s"]"\eb" @236
noback context ".<"[",7\s"]"\eb" @236
noback context ["`_<,7\s\eb"] * preserve the general quotation mark and space
noback context ["__<,7\s\eb"] * keep it as it is
noback context "_<"[",7\s"]"\eb" @236 preceded by left brace
noback context "`.<"[",7\s"]"\eb" @236 beginning of transnote
noback context ",8"[",7\s"]"\eb" @236 left single quote
noback context $a[",7\s"]"\eb" @6-2356-0 in any other case keep it as it is
noback context [",7\s"]"\eb" @236 #assumed to be a left quotation mark at the beginning of the string
#closing quotation mark after a math block
noback context "\ee"["\s,7"]$s @356
noback context "\ee"["\s,7"]~ @356
noback context "\ee"["\s,7"]"\">" @356
noback context "\ee"["\s,7"]".>" @356
noback context "\ee"["\s,7"]"_>" @356
noback context "\ee"["\s,7"]"`.>" @356
noback context "\ee"["\s,7"]",0" @356
#unconditionally remove the space adjacent to grouping symbols and others
#before a math block
always _`<\s\eb 456-4-126-0-1b-12 preserve the space, this isn't a grouping symbol: less than or equal to
always .`<\s\eb 46-4-126-0-1b-12 keep the space: much less than
always `<\s\eb 4-126-1b-12 can be a left angle bracket
always .<\s\eb 46-126-1b-12 left bracket
always `.<\s\eb 4-46-126-1b-12 beginning of transnote
always ,-\s\eb 6-36-1b-12 preceding long dash
always ",-\s\eb 5-6-36-1b-12 horizontal line
always ~.-\s\eb 45-46-36-0-1b-12 keep the space, this isn't an underline: low tone
always .-\s\eb 46-36-1b-12 underline
always _-\s\eb 456-36-0-1b-12 keep the space: minus or plus
always #-\s\eb 3456-36-0-1b-12 keep the space, this isn't a hyphen: uptack or perpendicular
always -\s\eb 36-1b-12 hyphen
always ~;8\s\eb 45-56-236-1b-12 inverted question mark
always ~;6\s\eb 45-56-235-1b-12 inverted exclamation point
always `s\s\eb 4-234-1b-12 Dollar sign
always `l\s\eb 4-123-1b-12 Pound
always `y\s\eb 4-13456-1b-12 Yen
always `f\s\eb 4-124-1b-12 Franc
always `n\s\eb 4-1345-1b-12 Naira
always `e\s\eb 4-15-1b-12 Euro
always `_<\s\eb 4-456-126-0-1b-12 keep the space, not a left brace: normal subgroup
always __<\s\eb 456-456-126-0-1b-12 keep the space, not a left brace: normal subgroup or equal
always _<\s\eb 456-126-1b-12 left brace
always "<\s\eb 5-126-1b-12 left parenthesis
#grouping and others after a math block
always \ee\s"> 1b-15-5-345 right parenthesis
always \ee\s.> 1b-15-46-345 right bracket
always \ee\s_> 1b-15-456-345 right brace
always \ee\s`>`: 1b-15-0-4-345-4-156 keep the space, not a right angle bracket: not greater than
always \ee\s`> 1b-15-4-345 can be a right angle bracket
always \ee\s`.> 1b-15-4-46-345 end of transnote
always \ee\s`c 1b-15-4-14 Cent sign
#handle seqafterpatterns following a math block
always \ee\s';s 1b-15-3-234
always \ee\s';d 1b-15-3-145
always \ee\s';ll 1b-15-3-123-123
#More seqafterpatterns
noback context "\ee"["\s"]"'"$z"e\s" ? where $z either represents the letter r or v
noback context "\ee"["\s"]"'"$z"e"~ ?
noback context "\ee"["\s"]"'"$z"e"$y1-10~ ?
noback context "\ee"["\s"]"'"$z"e"$y1-10"\s" ?
noback context "\ee"["\s"]"'"$z"e,7" ?
noback context "\ee"["\s"]"'"$z"e\">" ?
noback context "\ee"["\s"]"'"$z"e`>" ?
noback context "\ee"["\s"]"'"$z"e.>" ?
noback context "\ee"["\s"]"'"$z"e_>" ?
noback context "\ee"["\s"]"'"$z"e`.>" ?
noback context "\ee"["\s"]"'"$z"e,0" ?
noback context "\ee"["\s"]"'"$z"e\"9" ?
noback context "\ee"["\s"]"'"$z"e,-" ?
noback context "\ee"["\s"]"'"$z"e\",-" ?
noback context "\ee"["\s"]"'"$z"e.-" ?
noback context "\ee"["\s"]"'"$z"e"$y1-10",7" ?
noback context "\ee"["\s"]"'"$z"e"$y1-10"\">" ?
noback context "\ee"["\s"]"'"$z"e"$y1-10"`>" ?
noback context "\ee"["\s"]"'"$z"e"$y1-10".>" ?
noback context "\ee"["\s"]"'"$z"e"$y1-10"_>" ?
noback context "\ee"["\s"]"'"$z"e"$y1-10"`.>" ?
noback context "\ee"["\s"]"'"$z"e"$y1-10",0" ?
noback context "\ee"["\s"]"'"$z"e"$y1-10"\"9" ?
noback context "\ee"["\s"]"'"$z"e"$y1-10",-" ?
noback context "\ee"["\s"]"'"$z"e"$y1-10"\",-" ?
noback context "\ee"["\s"]"'"$z"e"$y1-10".-" ?
#noback context "\eb"[]$l"\ee" @56
#noback context "\eb"[]","$l"\ee" @56
noback pass2 @1b-12 @456-146-0 #Nemeth block start indicator
noback pass2 @1b-15 @0-456-156 Nemeth block end indicator