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46ab1d0cbe
* src/parse-gram.y (parse.error): Set to 'custom'. (yyreport_syntax_error): New. * data/bison-default.css (.expected, .unexpected): New. * tests/diagnostics.at: Adjust.
475 lines
19 KiB
Plaintext
475 lines
19 KiB
Plaintext
# Checking diagnostics. -*- Autotest -*-
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# Copyright (C) 2019-2020 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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AT_BANNER([[Diagnostics.]])
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# AT_TEST($1: TITLE, $2: GRAMMAR, $3: EXIT-STATUS, $4: OUTPUT-WITH-STYLE,
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# $5: EXTRA_ENV
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# -----------------------------------------------------------------------
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# Run Bison on GRAMMAR with debugging style enabled, and expect
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# OUTPUT-WITH-STYLE as diagnostics.
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m4_pushdef([AT_TEST],
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[
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AT_SETUP([$1])
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AT_KEYWORDS([diagnostics])
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# We need UTF-8 support for correct screen-width computation of UTF-8
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# characters. Skip the test if not available.
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locale=`locale -a | $EGREP '^en_US\.(UTF-8|utf8)$' | sed 1q`
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AT_SKIP_IF([test x == x"$locale"])
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AT_BISON_OPTION_PUSHDEFS
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AT_DATA_GRAMMAR([[input.y]], [$2])
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# For some reason, literal ^M in the input are removed and don't end
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# in `input.y`. So use the two-character ^M represent it, and let
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# Perl insert real CR characters.
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if grep '\^M' input.y >/dev/null; then
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AT_PERL_REQUIRE([-pi -e 's{\^M}{\r}gx' input.y])
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fi
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AT_DATA([experr], [$4])
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AT_CHECK([LC_ALL="$locale" $5 bison -fcaret --color=debug -Wall input.y], [$3], [], [experr])
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# When no style, same messages, but without style.
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AT_PERL_REQUIRE([-pi -e 's{(</?(-|\w)+>)}{ $[]1 eq "<tag>" ? $[]1 : "" }ge' experr])
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# Cannot use AT_BISON_CHECK easily as we need to change the
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# environment.
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# FIXME: Enhance AT_BISON_CHECK.
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AT_CHECK([LC_ALL="$locale" $5 bison -fcaret -Wall input.y], [$3], [], [experr])
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AT_BISON_OPTION_POPDEFS
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AT_CLEANUP
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])
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## ---------- ##
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## Warnings. ##
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## ---------- ##
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AT_TEST([[Warnings]],
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[[%token FOO FOO FOO
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%token FOO FOO FOO
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%%
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exp: %empty;
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]],
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[0],
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[[input.y:9.12-14: <warning>warning:</warning> symbol FOO redeclared [<warning>-Wother</warning>]
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9 | %token FOO <warning>FOO</warning> FOO
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| <warning>^~~</warning>
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input.y:9.8-10: previous declaration
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9 | %token <note>FOO</note> FOO FOO
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| <note>^~~</note>
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input.y:9.16-18: <warning>warning:</warning> symbol FOO redeclared [<warning>-Wother</warning>]
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9 | %token FOO FOO <warning>FOO</warning>
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| <warning>^~~</warning>
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input.y:9.8-10: previous declaration
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9 | %token <note>FOO</note> FOO FOO
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| <note>^~~</note>
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input.y:10.8-10: <warning>warning:</warning> symbol FOO redeclared [<warning>-Wother</warning>]
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10 | %token <warning>FOO</warning> FOO FOO
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| <warning>^~~</warning>
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input.y:9.8-10: previous declaration
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9 | %token <note>FOO</note> FOO FOO
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| <note>^~~</note>
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input.y:10.13-15: <warning>warning:</warning> symbol FOO redeclared [<warning>-Wother</warning>]
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10 | %token FOO <warning>FOO</warning> FOO
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| <warning>^~~</warning>
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input.y:9.8-10: previous declaration
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9 | %token <note>FOO</note> FOO FOO
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| <note>^~~</note>
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input.y:10.18-20: <warning>warning:</warning> symbol FOO redeclared [<warning>-Wother</warning>]
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10 | %token FOO FOO <warning>FOO</warning>
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| <warning>^~~</warning>
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input.y:9.8-10: previous declaration
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9 | %token <note>FOO</note> FOO FOO
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| <note>^~~</note>
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]])
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## ------------------------ ##
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## Single point locations. ##
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## ------------------------ ##
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# Single point locations (equal boundaries) are troublesome: it's easy
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# to mess up the opening/closing of style. They come from the parser,
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# rules with empty rhs. Their position is therefore debatable
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# (between the previous token and the next one).
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AT_TEST([[Single point locations]],
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[[%%
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exp: a b c d e
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a: {}
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b:{
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};
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c:
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d
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:
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e:
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]],
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[0],
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[[input.y:11.4-5: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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11 | a: <warning>{}</warning>
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| <warning>^~</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y:12.3-13.1: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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12 | b:<warning>{</warning>
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| <warning>^</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y:14.3: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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14 | c:
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| <warning>^</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y:16.2: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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16 | :
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| <warning>^</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y:17.3: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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17 | e:
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| <warning>^</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y: <warning>warning:</warning> fix-its can be applied. Rerun with option '--update'. [<warning>-Wother</warning>]
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]])
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## -------------------------------------- ##
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## Tabulations and multibyte characters. ##
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## -------------------------------------- ##
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# Make sure we treat tabulations as eight spaces, and that multibyte
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# characters have correct width.
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AT_TEST([[Tabulations and multibyte characters]],
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[[%%
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exp: a b c d e f g h
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a: { }
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b: { }
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c: {------------}
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d: {éééééééééééé}
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e: {∇⃗×𝐸⃗ = -∂𝐵⃗/∂t}
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f: { 42 }
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g: { "฿¥$€₦" }
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h: { 🐃 }
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]],
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[0],
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[[input.y:11.4-17: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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11 | a: <warning>{ }</warning>
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| <warning>^~~~~~~~~~~~~~</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y:12.4-17: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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12 | b: <warning>{ }</warning>
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| <warning>^~~~~~~~~~~~~~</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y:13.4-17: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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13 | c: <warning>{------------}</warning>
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| <warning>^~~~~~~~~~~~~~</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y:14.4-17: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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14 | d: <warning>{éééééééééééé}</warning>
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| <warning>^~~~~~~~~~~~~~</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y:15.4-17: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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15 | e: <warning>{∇⃗×𝐸⃗ = -∂𝐵⃗/∂t}</warning>
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| <warning>^~~~~~~~~~~~~~</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y:16.4-17: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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16 | f: <warning>{ 42 }</warning>
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| <warning>^~~~~~~~~~~~~~</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y:17.4-17: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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17 | g: <warning>{ "฿¥$€₦" }</warning>
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| <warning>^~~~~~~~~~~~~~</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y:18.4-17: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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18 | h: <warning>{ 🐃 }</warning>
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| <warning>^~~~~~~~~~~~~~</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y: <warning>warning:</warning> fix-its can be applied. Rerun with option '--update'. [<warning>-Wother</warning>]
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]])
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## --------------- ##
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## Special files. ##
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## --------------- ##
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# Don't try to quote special files.
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# http://lists.gnu.org/archive/html/bug-bison/2019-04/msg00000.html
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90034
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AT_TEST([[Special files]],
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[[%%
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exp: a b
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a: {}
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#line 1 "/dev/stdout"
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b: {}
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]],
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[0],
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[[input.y:11.4-5: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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11 | a: <warning>{}</warning>
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| <warning>^~</warning>
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| <fixit-insert>%empty</fixit-insert>
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/dev/stdout:1.4-5: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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| <fixit-insert>%empty</fixit-insert>
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input.y: <warning>warning:</warning> fix-its can be applied. Rerun with option '--update'. [<warning>-Wother</warning>]
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]])
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## -------------------- ##
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## Complaints from M4. ##
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## -------------------- ##
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# Complaints issued m4 need complete locations (byte and column) for
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# diagnostics.
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AT_TEST([[Complaints from M4]],
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[[%define error1 {e}
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%define error2 {é}
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%%
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exp: %empty;
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]],
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[1],
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[[input.y:9.1-27: <error>error:</error> %define variable 'error1' is not used
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9 | <error>%define error1 {e}</error>
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| <error>^~~~~~~~~~~~~~~~~~~~~~~~~~~</error>
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input.y:10.1-27: <error>error:</error> %define variable 'error2' is not used
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10 | <error>%define error2 {é}</error>
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| <error>^~~~~~~~~~~~~~~~~~~~~~~~~~~</error>
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]])
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## ----------------- ##
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## Carriage return. ##
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## ----------------- ##
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# Carriage-return used to count as a newline in the scanner, and not
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# in diagnostics. Resulting in all sort of nice bugs.
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AT_TEST([[Carriage return]],
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[[^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M^M
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%token "
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%%
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]],
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[1],
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[[input.y:10.8-11.0: <error>error:</error> missing '"' at end of line
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10 | %token <error>"</error>
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| <error>^</error>
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input.y:10.8-11.0: <error>error:</error> syntax error, unexpected <unexpected>string</unexpected>, expecting <expected>character literal</expected> or <expected>identifier</expected> or <expected><tag></expected>
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10 | %token <error>"</error>
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| <error>^</error>
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]])
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## ------- ##
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## CR NL. ##
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## ------- ##
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# Check Windows EOLs.
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AT_TEST([[CR NL]],
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[[^M
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%token ^M FOO^M
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%token ^M FOO^M
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%%^M
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exp:^M
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]],
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[0],
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[[input.y:11.9-11: <warning>warning:</warning> symbol FOO redeclared [<warning>-Wother</warning>]
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11 | %token
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<warning>FOO</warning>
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| <warning>^~~</warning>
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input.y:10.9-11: previous declaration
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10 | %token
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<note>FOO</note>
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| <note>^~~</note>
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input.y:13.5: <warning>warning:</warning> empty rule without %empty [<warning>-Wempty-rule</warning>]
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13 | exp:
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| <warning>^</warning>
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| <fixit-insert>%empty</fixit-insert>
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input.y: <warning>warning:</warning> fix-its can be applied. Rerun with option '--update'. [<warning>-Wother</warning>]
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]])
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## -------------- ##
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## Screen width. ##
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## -------------- ##
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AT_TEST([[Screen width: 200 columns]],
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[[%token ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ
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%error-verbose
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%%
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exp: ABCDEFGHIJKLMNOPQRSTUVWXYZ
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]],
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[0],
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[[input.y:9.36-61: <warning>warning:</warning> symbol ABCDEFGHIJKLMNOPQRSTUVWXYZ redeclared [<warning>-Wother</warning>]
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9 | %token ABCDEFGHIJKLMNOPQRSTUVWXYZ <warning>ABCDEFGHIJKLMNOPQRSTUVWXYZ</warning> ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ
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| <warning>^~~~~~~~~~~~~~~~~~~~~~~~~~</warning>
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input.y:9.8-33: previous declaration
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9 | %token <note>ABCDEFGHIJKLMNOPQRSTUVWXYZ</note> ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ
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| <note>^~~~~~~~~~~~~~~~~~~~~~~~~~</note>
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input.y:9.64-89: <warning>warning:</warning> symbol ABCDEFGHIJKLMNOPQRSTUVWXYZ redeclared [<warning>-Wother</warning>]
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9 | %token ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ <warning>ABCDEFGHIJKLMNOPQRSTUVWXYZ</warning> ABCDEFGHIJKLMNOPQRSTUVWXYZ
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| <warning>^~~~~~~~~~~~~~~~~~~~~~~~~~</warning>
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input.y:9.8-33: previous declaration
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9 | %token <note>ABCDEFGHIJKLMNOPQRSTUVWXYZ</note> ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ
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| <note>^~~~~~~~~~~~~~~~~~~~~~~~~~</note>
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input.y:9.92-117: <warning>warning:</warning> symbol ABCDEFGHIJKLMNOPQRSTUVWXYZ redeclared [<warning>-Wother</warning>]
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9 | %token ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ <warning>ABCDEFGHIJKLMNOPQRSTUVWXYZ</warning>
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| <warning>^~~~~~~~~~~~~~~~~~~~~~~~~~</warning>
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input.y:9.8-33: previous declaration
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9 | %token <note>ABCDEFGHIJKLMNOPQRSTUVWXYZ</note> ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ
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| <note>^~~~~~~~~~~~~~~~~~~~~~~~~~</note>
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input.y:10.56-69: <warning>warning:</warning> deprecated directive: '%error-verbose', use '%define parse.error verbose' [<warning>-Wdeprecated</warning>]
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10 | <warning>%error-verbose</warning>
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| <warning>^~~~~~~~~~~~~~</warning>
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| <fixit-insert>%define parse.error verbose</fixit-insert>
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input.y: <warning>warning:</warning> fix-its can be applied. Rerun with option '--update'. [<warning>-Wother</warning>]
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]],
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[[COLUMNS=200]])
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AT_TEST([[Screen width: 80 columns]],
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[[%token ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ
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%error-verbose
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%%
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exp: ABCDEFGHIJKLMNOPQRSTUVWXYZ
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]],
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[0],
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[[input.y:9.36-61: <warning>warning:</warning> symbol ABCDEFGHIJKLMNOPQRSTUVWXYZ redeclared [<warning>-Wother</warning>]
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9 | %token ABCDEFGHIJKLMNOPQRSTUVWXYZ <warning>ABCDEFGHIJKLMNOPQRSTUVWXYZ</warning> ABCDEF...
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| <warning>^~~~~~~~~~~~~~~~~~~~~~~~~~</warning>
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input.y:9.8-33: previous declaration
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9 | %token <note>ABCDEFGHIJKLMNOPQRSTUVWXYZ</note> ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEF...
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| <note>^~~~~~~~~~~~~~~~~~~~~~~~~~</note>
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input.y:9.64-89: <warning>warning:</warning> symbol ABCDEFGHIJKLMNOPQRSTUVWXYZ redeclared [<warning>-Wother</warning>]
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9 | %token ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ <warning>ABCDEF</warning>...
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| <warning>^~~~~~</warning>
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input.y:9.8-33: previous declaration
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9 | %token <note>ABCDEFGHIJKLMNOPQRSTUVWXYZ</note> ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEF...
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| <note>^~~~~~~~~~~~~~~~~~~~~~~~~~</note>
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input.y:9.92-117: <warning>warning:</warning> symbol ABCDEFGHIJKLMNOPQRSTUVWXYZ redeclared [<warning>-Wother</warning>]
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9 | ...TUVWXYZ <warning>ABCDEFGHIJKLMNOPQRSTUVWXYZ</warning>
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| <warning>^~~~~~~~~~~~~~~~~~~~~~~~~~</warning>
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input.y:9.8-33: previous declaration
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9 | %token <note>ABCDEFGHIJKLMNOPQRSTUVWXYZ</note> ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEF...
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| <note>^~~~~~~~~~~~~~~~~~~~~~~~~~</note>
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input.y:10.56-69: <warning>warning:</warning> deprecated directive: '%error-verbose', use '%define parse.error verbose' [<warning>-Wdeprecated</warning>]
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10 | <warning>%error-verbose</warning>
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| <warning>^~~~~~~~~~~~~~</warning>
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| <fixit-insert>%define parse.error verbose</fixit-insert>
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input.y: <warning>warning:</warning> fix-its can be applied. Rerun with option '--update'. [<warning>-Wother</warning>]
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]],
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[[COLUMNS=80]])
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AT_TEST([[Screen width: 60 columns]],
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[[%token ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ ABCDEFGHIJKLMNOPQRSTUVWXYZ
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%error-verbose
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%%
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exp: ABCDEFGHIJKLMNOPQRSTUVWXYZ
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]],
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[0],
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[[input.y:9.36-61: <warning>warning:</warning> symbol ABCDEFGHIJKLMNOPQRSTUVWXYZ redeclared [<warning>-Wother</warning>]
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9 | %token ABCDEFGHIJKLMNOPQRSTUVWXYZ <warning>ABCDEFGHIJKLMN</warning>...
|
|
| <warning>^~~~~~~~~~~~~~</warning>
|
|
input.y:9.8-33: previous declaration
|
|
9 | %token <note>ABCDEFGHIJKLMNOPQRSTUVWXYZ</note> ABCDEFGHIJKLMN...
|
|
| <note>^~~~~~~~~~~~~~~~~~~~~~~~~~</note>
|
|
input.y:9.64-89: <warning>warning:</warning> symbol ABCDEFGHIJKLMNOPQRSTUVWXYZ redeclared [<warning>-Wother</warning>]
|
|
9 | ...TUVWXYZ <warning>ABCDEFGHIJKLMNOPQRSTUVWXYZ</warning> ABCDEFGHI...
|
|
| <warning>^~~~~~~~~~~~~~~~~~~~~~~~~~</warning>
|
|
input.y:9.8-33: previous declaration
|
|
9 | %token <note>ABCDEFGHIJKLMNOPQRSTUVWXYZ</note> ABCDEFGHIJKLMN...
|
|
| <note>^~~~~~~~~~~~~~~~~~~~~~~~~~</note>
|
|
input.y:9.92-117: <warning>warning:</warning> symbol ABCDEFGHIJKLMNOPQRSTUVWXYZ redeclared [<warning>-Wother</warning>]
|
|
9 | ...TUVWXYZ <warning>ABCDEFGHIJKLMNOPQRSTUVWXYZ</warning>
|
|
| <warning>^~~~~~~~~~~~~~~~~~~~~~~~~~</warning>
|
|
input.y:9.8-33: previous declaration
|
|
9 | %token <note>ABCDEFGHIJKLMNOPQRSTUVWXYZ</note> ABCDEFGHIJKLMN...
|
|
| <note>^~~~~~~~~~~~~~~~~~~~~~~~~~</note>
|
|
input.y:10.56-69: <warning>warning:</warning> deprecated directive: '%error-verbose', use '%define parse.error verbose' [<warning>-Wdeprecated</warning>]
|
|
10 | ... <warning>%error-verbose</warning>
|
|
| <warning>^~~~~~~~~~~~~~</warning>
|
|
| <fixit-insert>%define parse.error verbose</fixit-insert>
|
|
input.y: <warning>warning:</warning> fix-its can be applied. Rerun with option '--update'. [<warning>-Wother</warning>]
|
|
]],
|
|
[[COLUMNS=60]])
|
|
|
|
|
|
## ------------- ##
|
|
## Suggestions. ##
|
|
## ------------- ##
|
|
|
|
# Don't suggest to fix QUX with QUUX and QUUX with QUX...
|
|
AT_TEST([[Suggestions]],
|
|
[[%%
|
|
res: QUX baz
|
|
bar: QUUX
|
|
]],
|
|
[1],
|
|
[[input.y:10.6-8: <error>error:</error> symbol 'QUX' is used, but is not defined as a token and has no rules
|
|
10 | res: <error>QUX</error> baz
|
|
| <error>^~~</error>
|
|
input.y:10.10-12: <error>error:</error> symbol 'baz' is used, but is not defined as a token and has no rules; did you mean 'bar'?
|
|
10 | res: QUX <error>baz</error>
|
|
| <error>^~~</error>
|
|
| <fixit-insert>bar</fixit-insert>
|
|
input.y:11.6-9: <error>error:</error> symbol 'QUUX' is used, but is not defined as a token and has no rules
|
|
11 | bar: <error>QUUX</error>
|
|
| <error>^~~~</error>
|
|
]])
|
|
|
|
|
|
|
|
|
|
|
|
m4_popdef([AT_TEST])
|
|
|
|
|
|
|
|
|
|
## -------------------------------------- ##
|
|
## Indentation with message suppression. ##
|
|
## -------------------------------------- ##
|
|
|
|
AT_SETUP([[Indentation with message suppression]])
|
|
|
|
# https://lists.gnu.org/archive/html/bug-bison/2019-08/msg00002.html
|
|
|
|
AT_DATA([[input.y]],
|
|
[[%define api.pure
|
|
%pure-parser
|
|
%error-verbose
|
|
%%
|
|
exp : '0'
|
|
]])
|
|
|
|
AT_BISON_CHECK([[-fcaret -Wno-other input.y]], [0], [],
|
|
[[input.y:2.1-12: warning: deprecated directive: '%pure-parser', use '%define api.pure' [-Wdeprecated]
|
|
2 | %pure-parser
|
|
| ^~~~~~~~~~~~
|
|
| %define api.pure
|
|
input.y:3.1-14: warning: deprecated directive: '%error-verbose', use '%define parse.error verbose' [-Wdeprecated]
|
|
3 | %error-verbose
|
|
| ^~~~~~~~~~~~~~
|
|
| %define parse.error verbose
|
|
]])
|
|
|
|
AT_CLEANUP
|