Fix for number backtranslations on fr-fr-g1 and vi-g1 tables

This commit adds the litdigit definition for the french and vietnamese
grade 1 tables. These tables included the digit definition from
digits6DotsPlusDot6.uti but did not include a definition for litdigits,
which would provide the correct translations only for computer braille.
Previously, backtranslations for cells starting with the number sign
would behave differently from the forward translations by returning
space for 0 or ignoring the number sign for other digits (e.g. a with
circumflex for 3456-16 instead of 1).

tables/Makefile.am

@@ -226,6 +226,7 @@ table_files = \
 	latinLetterDef6Dots.uti \
 	latinLetterDef8Dots.uti \
 	litdigits6Dots.uti \
+	litdigits6DotsPlusDot6.uti \
 	loweredDigits6Dots.uti \
 	loweredDigits8Dots.uti \
 	lt.ctb \

tables/fr-fr-g1.utb

@@ -72,6 +72,8 @@ sign # 3456					dièse
 # override zero
 digit 0 3456
 include digits6DotsPlusDot6.uti
+litdigit 0 3456
+include litdigits6DotsPlusDot6.uti
 
 sign \x00A8 46			diaeresis sign
 math \x00F7 6-256		divisé par

tables/litdigits6DotsPlusDot6.uti

@@ -0,0 +1,30 @@
+# liblouis: sub table for literary digits, 6 dots with dot 6 added
+#
+#  Copyright (C) 2017 Victor Montalvao <[email protected]>
+#
+#  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/>.
+
+litdigit 0 346
+litdigit 1 16
+litdigit 2 126
+litdigit 3 146
+litdigit 4 1456
+litdigit 5 156
+litdigit 6 1246
+litdigit 7 12456
+litdigit 8 1256
+litdigit 9 246

tables/vi-g1.ctb

@@ -161,6 +161,8 @@ sign # 3456                                     dièse
 # override zero
 digit 0 3456
 include digits6DotsPlusDot6.uti
+litdigit 0 3456
+include litdigits6DotsPlusDot6.uti
 
 sign \x00A8 46                  diaeresis sign
 math \x00F7 6-256               divisé par

tests/yaml/fr-fr-g1_backward.yaml

@@ -0,0 +1,21 @@
+tables: [tables/unicode.dis, tables/fr-fr-g1.utb]
+flags: {testmode: backward}
+tests:
+# Backward translations
+  # Digits
+  - [⠼⠼, 0]
+  - [⠼⠡, 1]
+  - [⠼⠣, 2]
+  - [⠼⠩, 3]
+  - [⠼⠹, 4]
+  - [⠼⠱, 5]
+  - [⠼⠫, 6]
+  - [⠼⠻, 7]
+  - [⠼⠳, 8]
+  - [⠼⠪, 9]
+  - [⠼⠡⠼, 10]
+  - [⠼⠡⠡, 11]
+  - [⠼⠡⠣, 12]
+  - [⠼⠪⠪, 99]
+  - [⠼⠡⠼⠼, 100]
+  - [⠼⠡⠼⠼⠼, 1000]

tests/yaml/fr-fr-g1_harness.yaml

@@ -0,0 +1,21 @@
+tables: [tables/unicode.dis, tables/fr-fr-g1.utb]
+flags: {testmode: forward}
+tests:
+# Forward translations
+  # Digits
+  - [0, ⠼⠼]
+  - [1, ⠼⠡]
+  - [2, ⠼⠣]
+  - [3, ⠼⠩]
+  - [4, ⠼⠹]
+  - [5, ⠼⠱]
+  - [6, ⠼⠫]
+  - [7, ⠼⠻]
+  - [8, ⠼⠳]
+  - [9, ⠼⠪]
+  - [10, ⠼⠡⠼]
+  - [11, ⠼⠡⠡]
+  - [12, ⠼⠡⠣]
+  - [99, ⠼⠪⠪]
+  - [100, ⠼⠡⠼⠼]
+  - [1000, ⠼⠡⠼⠼⠼]

tests/yaml/vi-g1_backward.yaml

@@ -0,0 +1,21 @@
+tables: [tables/unicode.dis, tables/vi-g1.ctb]
+flags: {testmode: backward}
+tests:
+# Backward translations
+  # Digits
+  - [⠼⠼, 0]
+  - [⠼⠡, 1]
+  - [⠼⠣, 2]
+  - [⠼⠩, 3]
+  - [⠼⠹, 4]
+  - [⠼⠱, 5]
+  - [⠼⠫, 6]
+  - [⠼⠻, 7]
+  - [⠼⠳, 8]
+  - [⠼⠪, 9]
+  - [⠼⠡⠼, 10]
+  - [⠼⠡⠡, 11]
+  - [⠼⠡⠣, 12]
+  - [⠼⠪⠪, 99]
+  - [⠼⠡⠼⠼, 100]
+  - [⠼⠡⠼⠼⠼, 1000]

tests/yaml/vi-g1_harness.yaml

@@ -0,0 +1,21 @@
+tables: [tables/unicode.dis, tables/vi-g1.ctb]
+flags: {testmode: forward}
+tests:
+# Forward translations
+  # Digits
+  - [0, ⠼⠼]
+  - [1, ⠼⠡]
+  - [2, ⠼⠣]
+  - [3, ⠼⠩]
+  - [4, ⠼⠹]
+  - [5, ⠼⠱]
+  - [6, ⠼⠫]
+  - [7, ⠼⠻]
+  - [8, ⠼⠳]
+  - [9, ⠼⠪]
+  - [10, ⠼⠡⠼]
+  - [11, ⠼⠡⠡]
+  - [12, ⠼⠡⠣]
+  - [99, ⠼⠪⠪]
+  - [100, ⠼⠡⠼⠼]
+  - [1000, ⠼⠡⠼⠼⠼]