carets: activate by default

[bison.git] / tests / input.at

diff --git a/tests/input.at b/tests/input.at
index 16a9308d1e80d31a7e18ddc45ac3e6733b10f637..f9ed33d2c222abf0f6f677915fdc10baddaa8b02 100644 (file)
--- a/tests/input.at
+++ b/tests/input.at
@@ -20,6 +20,63 @@ AT_BANNER([[Input Processing.]])
 # Mostly test that we are robust to mistakes.
 
 
 # Mostly test that we are robust to mistakes.
 
 

+## ---------------- ##
+## Invalid inputs.  ##
+## ---------------- ##
+
+AT_SETUP([Invalid inputs])
+
+AT_DATA([input.y],
+[[\000\001\002\377?
+%%
+?
+default: 'a' }
+%&
+%a-does-not-exist
+%-
+%{
+]])
+AT_CHECK([[$PERL -pi -e 's/\\(\d{3})/chr(oct($1))/ge' input.y || exit 77]])
+
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:1.1-2: error: invalid characters: '\0\001\002\377?'
+input.y:3.1: error: invalid character: '?'
+input.y:4.14: error: invalid character: '}'
+input.y:5.1: error: invalid character: '%'
+input.y:5.2: error: invalid character: '&'
+input.y:6.1-17: error: invalid directive: '%a-does-not-exist'
+input.y:7.1: error: invalid character: '%'
+input.y:7.2: error: invalid character: '-'
+input.y:8.1-9.0: error: missing '%}' at end of file
+input.y:8.1-9.0: error: syntax error, unexpected %{...%}
+]])
+
+AT_CLEANUP
+
+
+AT_SETUP([Invalid inputs with {}])
+
+# We used to SEGV here.  See
+# http://lists.gnu.org/archive/html/bug-bison/2005-07/msg00053.html
+
+AT_DATA([input.y],
+[[
+%destructor
+%initial-action
+%lex-param
+%parse-param
+%printer
+%union
+]])
+
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:3.1-15: error: syntax error, unexpected %initial-action, expecting {...}
+]])
+
+AT_CLEANUP
+
+
+

 ## ------------ ##
 ## Invalid $n.  ##
 ## ------------ ##
 ## ------------ ##
 ## Invalid $n.  ##
 ## ------------ ##


@@ -60,9 +117,9 @@ exp: foo { $$; } foo { $2; } foo
 AT_BISON_CHECK([input.y], [1], [],
 [[input.y:5.12-13: error: $$ for the midrule at $2 of 'exp' has no declared type
 input.y:5.24-25: error: $2 of 'exp' has no declared type
 AT_BISON_CHECK([input.y], [1], [],
 [[input.y:5.12-13: error: $$ for the midrule at $2 of 'exp' has no declared type
 input.y:5.24-25: error: $2 of 'exp' has no declared type

-input.y:5.6-32: warning: type clash on default action: <bar> != <>
-input.y:6.6-8: warning: type clash on default action: <bar> != <>
-input.y:7.5: warning: empty rule for typed nonterminal, and no action
+input.y:5.6-32: warning: type clash on default action: <bar> != <> [-Wother]
+input.y:6.6-8: warning: type clash on default action: <bar> != <> [-Wother]
+input.y:7.5: warning: empty rule for typed nonterminal, and no action [-Wother]

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -72,7 +129,6 @@ AT_CLEANUP
 # --------------------------------
 # Generate the token, type, and destructor
 # declarations for the unused values tests.
 # --------------------------------
 # Generate the token, type, and destructor
 # declarations for the unused values tests.

-

 m4_define([_AT_UNUSED_VALUES_DECLARATIONS],
 [[[%token <integer> INT;
 %type <integer> a b c d e f g h i j k l;
 m4_define([_AT_UNUSED_VALUES_DECLARATIONS],
 [[[%token <integer> INT;
 %type <integer> a b c d e f g h i j k l;


@@ -80,15 +136,11 @@ m4_define([_AT_UNUSED_VALUES_DECLARATIONS],
 
 
 # AT_CHECK_UNUSED_VALUES(DECLARATIONS_AFTER, CHECK_MIDRULE_VALUES)
 
 
 # AT_CHECK_UNUSED_VALUES(DECLARATIONS_AFTER, CHECK_MIDRULE_VALUES)

-# ------------------------------------------------------------------
-# Generate a grammar to test unused values,
-# compile it, run it.  If DECLARATIONS_AFTER
-# is set, then the token, type, and destructor
-# declarations are generated after the rules
-# rather than before.  If CHECK_MIDRULE_VALUES
-# is set, then --warnings=midrule-values is
-# set.
-
+# ----------------------------------------------------------------
+# Generate a grammar to test unused values, compile it, run it.  If
+# DECLARATIONS_AFTER is set, then the token, type, and destructor
+# declarations are generated after the rules rather than before.  If
+# CHECK_MIDRULE_VALUES is set, then --warnings=midrule-values is set.

 m4_define([AT_CHECK_UNUSED_VALUES],
 [AT_DATA([input.y],
 m4_ifval($1, [
 m4_define([AT_CHECK_UNUSED_VALUES],
 [AT_DATA([input.y],
 m4_ifval($1, [


@@ -117,42 +169,109 @@ l: INT | INT { $<integer>$ = $<integer>1; } INT { $<integer>$ = $<integer>2 + $<
 _AT_UNUSED_VALUES_DECLARATIONS])
 )
 
 _AT_UNUSED_VALUES_DECLARATIONS])
 )
 

-AT_BISON_CHECK(m4_ifval($2, [ --warnings=midrule-values ])[ input.y], [0], [],
-[[input.y:11.10-32: warning: unset value: $]$[
-input.y:11.10-32: warning: unused value: $]1[
-input.y:11.10-32: warning: unused value: $]3[
-input.y:11.10-32: warning: unused value: $]5[
-input.y:12.9: warning: empty rule for typed nonterminal, and no action
-]]m4_ifval($2, [[[input.y:13.14-20: warning: unset value: $$
-input.y:13.26-41: warning: unset value: $$
-]]])[[input.y:13.10-62: warning: unset value: $]$[
-input.y:13.10-62: warning: unused value: $]3[
-input.y:13.10-62: warning: unused value: $]5[
-]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $$
-]]])[[input.y:14.10-49: warning: unset value: $]$[
-input.y:14.10-49: warning: unused value: $]3[
-input.y:14.10-49: warning: unused value: $]5[
-input.y:15.10-37: warning: unset value: $]$[
-input.y:15.10-37: warning: unused value: $]3[
-input.y:15.10-37: warning: unused value: $]5[
-input.y:17.10-58: warning: unset value: $]$[
-input.y:17.10-58: warning: unused value: $]1[
-]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]2[
-]]])[[input.y:17.10-58: warning: unused value: $]3[
-]]m4_ifval($2, [[[input.y:17.10-58: warning: unused value: $]4[
-]]])[[input.y:17.10-58: warning: unused value: $]5[
-input.y:18.10-72: warning: unset value: $]$[
-input.y:18.10-72: warning: unused value: $]1[
-input.y:18.10-72: warning: unused value: $]3[
-]]m4_ifval($2, [[[input.y:18.10-72: warning: unused value: $]4[
-]]])[[input.y:18.10-72: warning: unused value: $]5[
-]]m4_ifval($2, [[[input.y:20.10-55: warning: unused value: $]3[
-]]])[[input.y:21.10-68: warning: unset value: $]$[
-input.y:21.10-68: warning: unused value: $]1[
-input.y:21.10-68: warning: unused value: $]2[
-]]m4_ifval($2, [[[input.y:21.10-68: warning: unused value: $]4[
-]]]))])
-
+AT_BISON_CHECK(m4_ifval($2, [--warnings=midrule-values ])[-fcaret input.y],
+               [0], [],
+[[input.y:11.10-32: warning: unset value: $][$ [-Wother]
+ a: INT | INT { } INT { } INT { };
+          ^^^^^^^^^^^^^^^^^^^^^^^
+input.y:11.10-12: warning: unused value: $][1 [-Wother]
+ a: INT | INT { } INT { } INT { };
+          ^^^
+input.y:11.18-20: warning: unused value: $][3 [-Wother]
+ a: INT | INT { } INT { } INT { };
+                  ^^^
+input.y:11.26-28: warning: unused value: $][5 [-Wother]
+ a: INT | INT { } INT { } INT { };
+                          ^^^
+input.y:12.9: warning: empty rule for typed nonterminal, and no action [-Wother]
+ b: INT | /* empty */;
+         ^
+]]m4_ifval($2, [[[input.y:13.14-20: warning: unset value: $][$ [-Wmidrule-values]
+ c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
+              ^^^^^^^
+input.y:13.26-41: warning: unset value: $][$ [-Wmidrule-values]
+ c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
+                          ^^^^^^^^^^^^^^^^
+]]])[[input.y:13.10-62: warning: unset value: $][$ [-Wother]
+ c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+input.y:13.22-24: warning: unused value: $][3 [-Wother]
+ c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
+                      ^^^
+input.y:13.43-45: warning: unused value: $][5 [-Wother]
+ c: INT | INT { $][1; } INT { $<integer>2; } INT { $<integer>4; };
+                                           ^^^
+]]m4_ifval($2, [[[input.y:14.14-16: warning: unset value: $][$ [-Wmidrule-values]
+ d: INT | INT { } INT { $][1; } INT { $<integer>2; };
+              ^^^
+]]])[[input.y:14.10-49: warning: unset value: $][$ [-Wother]
+ d: INT | INT { } INT { $][1; } INT { $<integer>2; };
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+input.y:14.18-20: warning: unused value: $][3 [-Wother]
+ d: INT | INT { } INT { $][1; } INT { $<integer>2; };
+                  ^^^
+input.y:14.30-32: warning: unused value: $][5 [-Wother]
+ d: INT | INT { } INT { $][1; } INT { $<integer>2; };
+                              ^^^
+input.y:15.10-37: warning: unset value: $][$ [-Wother]
+ e: INT | INT { } INT {  } INT { $][1; };
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+input.y:15.18-20: warning: unused value: $][3 [-Wother]
+ e: INT | INT { } INT {  } INT { $][1; };
+                  ^^^
+input.y:15.27-29: warning: unused value: $][5 [-Wother]
+ e: INT | INT { } INT {  } INT { $][1; };
+                           ^^^
+input.y:17.10-58: warning: unset value: $][$ [-Wother]
+ g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+input.y:17.10-12: warning: unused value: $][1 [-Wother]
+ g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
+          ^^^
+]]m4_ifval($2, [[[input.y:17.14-29: warning: unused value: $][2 [-Wmidrule-values]
+ g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
+              ^^^^^^^^^^^^^^^^
+]]])[[input.y:17.31-33: warning: unused value: $][3 [-Wother]
+ g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
+                               ^^^
+]]m4_ifval($2, [[[input.y:17.35-50: warning: unused value: $][4 [-Wmidrule-values]
+ g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
+                                   ^^^^^^^^^^^^^^^^
+]]])[[input.y:17.52-54: warning: unused value: $][5 [-Wother]
+ g: INT | INT { $<integer>$; } INT { $<integer>$; } INT { };
+                                                    ^^^
+input.y:18.10-72: warning: unset value: $][$ [-Wother]
+ h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+input.y:18.10-12: warning: unused value: $][1 [-Wother]
+ h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
+          ^^^
+input.y:18.31-33: warning: unused value: $][3 [-Wother]
+ h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
+                               ^^^
+]]m4_ifval($2, [[[input.y:18.35-64: warning: unused value: $][4 [-Wmidrule-values]
+ h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
+                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+]]])[[input.y:18.66-68: warning: unused value: $][5 [-Wother]
+ h: INT | INT { $<integer>$; } INT { $<integer>$ = $<integer>2; } INT { };
+                                                                  ^^^
+]]m4_ifval($2, [[[input.y:20.18-37: warning: unused value: $][3 [-Wmidrule-values]
+ j: INT | INT INT { $<integer>$ = 1; } { $][$ = $][1 + $][2; };
+                  ^^^^^^^^^^^^^^^^^^^^
+]]])[[input.y:21.10-68: warning: unset value: $][$ [-Wother]
+ k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
+          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+input.y:21.10-12: warning: unused value: $][1 [-Wother]
+ k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
+          ^^^
+input.y:21.14-16: warning: unused value: $][2 [-Wother]
+ k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
+              ^^^
+]]m4_ifval($2, [[[input.y:21.35-64: warning: unused value: $][4 [-Wmidrule-values]
+ k: INT | INT INT { $<integer>$; } { $<integer>$ = $<integer>3; } { };
+                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+]]]))
+])

 
 ## --------------- ##
 ## Unused values.  ##
 
 ## --------------- ##
 ## Unused values.  ##


@@ -205,29 +324,29 @@ start: ;
 ]])
 
 AT_BISON_CHECK([input.y], [1], [],
 ]])
 
 AT_BISON_CHECK([input.y], [1], [],

-[[input.y:1.13-29: error: redeclaration for default tagged %destructor
+[[input.y:1.13-29: error: %destructor redeclaration for <*>

 input.y:1.13-29:     previous declaration
 input.y:1.13-29:     previous declaration

-input.y:2.10-24: error: redeclaration for default tagged %printer
+input.y:2.10-24: error: %printer redeclaration for <*>

 input.y:2.10-24:     previous declaration
 input.y:2.10-24:     previous declaration

-input.y:4.13-29: error: redeclaration for default tagged %destructor
+input.y:4.13-29: error: %destructor redeclaration for <*>

 input.y:1.13-29:     previous declaration
 input.y:1.13-29:     previous declaration

-input.y:5.10-24: error: redeclaration for default tagged %printer
+input.y:5.10-24: error: %printer redeclaration for <*>

 input.y:2.10-24:     previous declaration
 input.y:2.10-24:     previous declaration

-input.y:7.13-29: error: redeclaration for default tagless %destructor
+input.y:7.13-29: error: %destructor redeclaration for <>

 input.y:7.13-29:     previous declaration
 input.y:7.13-29:     previous declaration

-input.y:8.10-24: error: redeclaration for default tagless %printer
+input.y:8.10-24: error: %printer redeclaration for <>

 input.y:8.10-24:     previous declaration
 input.y:8.10-24:     previous declaration

-input.y:10.13-29: error: redeclaration for default tagless %destructor
+input.y:10.13-29: error: %destructor redeclaration for <>

 input.y:7.13-29:      previous declaration
 input.y:7.13-29:      previous declaration

-input.y:11.10-24: error: redeclaration for default tagless %printer
+input.y:11.10-24: error: %printer redeclaration for <>

 input.y:8.10-24:      previous declaration
 input.y:8.10-24:      previous declaration

-input.y:17.13-29: error: redeclaration for default tagged %destructor
+input.y:17.13-29: error: %destructor redeclaration for <*>

 input.y:4.13-29:      previous declaration
 input.y:4.13-29:      previous declaration

-input.y:18.10-24: error: redeclaration for default tagged %printer
+input.y:18.10-24: error: %printer redeclaration for <*>

 input.y:5.10-24:      previous declaration
 input.y:5.10-24:      previous declaration

-input.y:20.13-29: error: redeclaration for default tagless %destructor
+input.y:20.13-29: error: %destructor redeclaration for <>

 input.y:10.13-29:     previous declaration
 input.y:10.13-29:     previous declaration

-input.y:21.10-24: error: redeclaration for default tagless %printer
+input.y:21.10-24: error: %printer redeclaration for <>

 input.y:11.10-24:     previous declaration
 ]])
 
 input.y:11.10-24:     previous declaration
 ]])
 


@@ -276,6 +395,123 @@ input.y:5.10-24:      previous declaration
 
 AT_CLEANUP
 
 
 AT_CLEANUP
 

+## ------------------- ##
+## Undefined symbols.  ##
+## ------------------- ##
+
+AT_SETUP([Undefined symbols])
+
+AT_DATA([[input.y]],
+[[%printer {} foo baz
+%destructor {} bar
+%type <foo> qux
+%%
+exp: bar;
+]])
+
+AT_BISON_CHECK([input.y], [1], [],
+[[input.y:2.16-18: error: symbol bar is used, but is not defined as a token and has no rules
+input.y:1.17-19: warning: symbol baz is used, but is not defined as a token and has no rules [-Wother]
+input.y:1.13-15: warning: symbol foo is used, but is not defined as a token and has no rules [-Wother]
+input.y:3.13-15: warning: symbol qux is used, but is not defined as a token and has no rules [-Wother]
+]])
+
+AT_CLEANUP
+
+
+## ----------------------------------------------------- ##
+## Unassociated types used for a printer or destructor.  ##
+## ----------------------------------------------------- ##
+
+AT_SETUP([Unassociated types used for a printer or destructor])
+
+AT_DATA([[input.y]],
+[[%token <type1> tag1
+%type <type2> tag2
+
+%printer { } <type1> <type3>
+%destructor { } <type2> <type4>
+
+%%
+
+exp: tag1 { $1; }
+   | tag2 { $1; }
+
+tag2: "a" { $$; }
+]])
+
+AT_BISON_CHECK([input.y], [0], [],
+[[input.y:4.22-28: warning: type <type3> is used, but is not associated to any symbol [-Wother]
+input.y:5.25-31: warning: type <type4> is used, but is not associated to any symbol [-Wother]
+]])
+
+AT_CLEANUP
+
+
+## --------------------------------- ##
+## Useless printers or destructors.  ##
+## --------------------------------- ##
+
+AT_SETUP([Useless printers or destructors])
+
+# AT_TEST([INPUT], [STDERR])
+# --------------------------
+m4_pushdef([AT_TEST],
+[AT_DATA([[input.y]],
+[$1
+])
+AT_BISON_CHECK([input.y], [0], [], [$2
+])])
+
+AT_TEST([[%token <type1> token1
+%token <type2> token2
+%token <type3> token3
+%token <type4> token4
+%token <type5> token51 token52
+%token <type6> token61 token62
+%token <type7> token7
+
+%printer {} token1
+%destructor {} token2
+%printer {} token51
+%destructor {} token61
+
+%printer {} token7
+
+%printer {} <type1>
+%destructor {} <type2>
+%printer {} <type3>
+%destructor {} <type4>
+
+%printer {} <type5>
+%destructor {} <type6>
+
+%destructor {} <type7>
+
+%%
+exp: "a";]],
+[[input.y:16.13-19: warning: useless %printer for type <type1> [-Wother]
+input.y:17.16-22: warning: useless %destructor for type <type2> [-Wother]]])
+
+# If everybody is typed, <> is useless.
+AT_TEST([[%type <type> exp
+%token <type> a
+%printer {} <> <*>
+%%
+exp: a;]],
+[[input.y:3.13-14: warning: useless %printer for type <> [-Wother]]])
+
+# If nobody is typed, <*> is useless.
+AT_TEST([[%token a
+%printer {} <> <*>
+%%
+exp: a;]],
+[[input.y:2.16-18: warning: useless %printer for type <*> [-Wother]]])
+
+m4_popdef([AT_TEST])
+
+AT_CLEANUP
+

 
 ## ---------------------------------------- ##
 ## Unused values with default %destructor.  ##
 
 ## ---------------------------------------- ##
 ## Unused values with default %destructor.  ##


@@ -295,9 +531,9 @@ tagged: { } ;
 ]])
 
 AT_BISON_CHECK([input.y], [0], [],
 ]])
 
 AT_BISON_CHECK([input.y], [0], [],

-[[input.y:6.8-45: warning: unset value: $$
-input.y:6.8-45: warning: unused value: $2
-input.y:7.6-8: warning: unset value: $$
+[[input.y:6.8-45: warning: unset value: $$ [-Wother]
+input.y:6.12-14: warning: unused value: $2 [-Wother]
+input.y:7.6-8: warning: unset value: $$ [-Wother]

 ]])
 
 AT_DATA([[input.y]],
 ]])
 
 AT_DATA([[input.y]],


@@ -312,8 +548,8 @@ tagged: { } ;
 ]])
 
 AT_BISON_CHECK([input.y], [0], [],
 ]])
 
 AT_BISON_CHECK([input.y], [0], [],

-[[input.y:6.8-45: warning: unused value: $4
-input.y:8.9-11: warning: unset value: $$
+[[input.y:6.23-28: warning: unused value: $4 [-Wother]
+input.y:8.9-11: warning: unset value: $$ [-Wother]

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -336,9 +572,9 @@ end: { }  ;
 ]])
 
 AT_BISON_CHECK([input.y], [0], [],
 ]])
 
 AT_BISON_CHECK([input.y], [0], [],

-[[input.y:6.8-22: warning: unset value: $$
-input.y:6.8-22: warning: unused value: $2
-input.y:7.6-8: warning: unset value: $$
+[[input.y:6.8-22: warning: unset value: $$ [-Wother]
+input.y:6.12-14: warning: unused value: $2 [-Wother]
+input.y:7.6-8: warning: unset value: $$ [-Wother]

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -516,7 +752,7 @@ yylex (void)
 }
 ]])
 
 }
 ]])
 

-# Pacify Emacs' font-lock-mode: "
+# Pacify Emacs'font-lock-mode: "

 
 AT_DATA([main.c],
 [[typedef int value;
 
 AT_DATA([main.c],
 [[typedef int value;


@@ -595,8 +831,8 @@ AT_CHECK_REQUIRE(100.0, 63)
 
 AT_SETUP([String aliases for character tokens])
 
 
 AT_SETUP([String aliases for character tokens])
 

-# Bison once thought a character token and its alias were different symbols
-# with the same user token number.
+# Bison once thought a character token and its alias were different
+# symbols with the same user token number.

 
 AT_DATA_GRAMMAR([input.y],
 [[%token 'a' "a"
 
 AT_DATA_GRAMMAR([input.y],
 [[%token 'a' "a"


@@ -639,15 +875,15 @@ without_period: "WITHOUT.PERIOD";
 AT_BISON_OPTION_POPDEFS
 
 # POSIX Yacc accept periods, but not dashes.
 AT_BISON_OPTION_POPDEFS
 
 # POSIX Yacc accept periods, but not dashes.

-AT_BISON_CHECK([--yacc input.y], [1], [],
-[[input.y:9.8-16: POSIX Yacc forbids dashes in symbol names: WITH-DASH
-input.y:18.8-16: POSIX Yacc forbids dashes in symbol names: with-dash
+AT_BISON_CHECK([--yacc -Wno-error input.y], [], [],
+[[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH [-Wyacc]
+input.y:18.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash [-Wyacc]

 ]])
 
 # So warn about them.
 AT_BISON_CHECK([-Wyacc input.y], [], [],
 ]])
 
 # So warn about them.
 AT_BISON_CHECK([-Wyacc input.y], [], [],

-[[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH
-input.y:18.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash
+[[input.y:9.8-16: warning: POSIX Yacc forbids dashes in symbol names: WITH-DASH [-Wyacc]
+input.y:18.8-16: warning: POSIX Yacc forbids dashes in symbol names: with-dash [-Wyacc]

 ]])
 
 # Dashes are fine for GNU Bison.
 ]])
 
 # Dashes are fine for GNU Bison.


@@ -720,10 +956,10 @@ AT_CLEANUP
 
 AT_SETUP([Unclosed constructs])
 
 
 AT_SETUP([Unclosed constructs])
 

-# Bison's scan-gram.l once forgot to STRING_FINISH some unclosed constructs, so
-# they were prepended to whatever it STRING_GROW'ed next.  It also threw them
-# away rather than returning them to the parser.  The effect was confusing
-# subsequent error messages.
+# Bison's scan-gram.l once forgot to STRING_FINISH some unclosed
+# constructs, so they were prepended to whatever it STRING_GROW'ed
+# next.  It also threw them away rather than returning them to the
+# parser.  The effect was confusing subsequent error messages.

 
 AT_DATA([input.y],
 [[%token A "a
 
 AT_DATA([input.y],
 [[%token A "a


@@ -756,6 +992,25 @@ input.y:19.13-20.0: error: missing '}' at end of file
 input.y:20.1: error: syntax error, unexpected end of file
 ]])
 
 input.y:20.1: error: syntax error, unexpected end of file
 ]])
 

+AT_BISON_CHECK([-fcaret -o input.c input.y], 1, [],
+[[input.y:1.10-2.0: error: missing '"' at end of line
+ %token A "a
+          ^^
+input.y:4.10-5.0: error: missing "'" at end of line
+ %token C '1
+          ^^
+input.y:14.11-15.0: error: missing "'" at end of line
+ %type <f> 'a
+           ^^
+input.y:16.11-17.0: error: missing '"' at end of line
+ %type <f> "a
+           ^^
+input.y:19.13-20.0: error: missing '}' at end of file
+ %destructor { free ($$)
+             ^^^^^^^^^^^
+input.y:20.1: error: syntax error, unexpected end of file
+]])
+

 AT_CLEANUP
 
 
 AT_CLEANUP
 
 


@@ -765,8 +1020,8 @@ AT_CLEANUP
 
 AT_SETUP([%start after first rule])
 
 
 AT_SETUP([%start after first rule])
 

-# Bison once complained that a %start after the first rule was a redeclaration
-# of the start symbol.
+# Bison once complained that a %start after the first rule was a
+# redeclaration of the start symbol.

 
 AT_DATA([input.y],
 [[%%
 
 AT_DATA([input.y],
 [[%%


@@ -815,7 +1070,7 @@ start: %prec PREC ;
 ]])
 
 AT_BISON_CHECK([[input.y]], [[0]], [],
 ]])
 
 AT_BISON_CHECK([[input.y]], [[0]], [],

-[[input.y:2.8-17: warning: token for %prec is not defined: PREC
+[[input.y:2.8-17: warning: token for %prec is not defined: PREC [-Wother]

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -988,6 +1243,18 @@ AT_BISON_CHECK([[-Dvar=cmd-d input-dg.y]], [[1]], [],
 <command line>:2:      previous definition
 ]])
 
 <command line>:2:      previous definition
 ]])
 

+AT_DATA([[input-dg.y]],
+[[%define var "gram"
+%%
+start: ;
+]])
+AT_BISON_CHECK([[-fcaret -Dvar=cmd-d input-dg.y]], [[1]], [],
+[[input-dg.y:1.9-11: error: %define variable 'var' redefined
+ %define var "gram"
+         ^^^
+<command line>:3:      previous definition
+]])
+

 AT_DATA([[input-unused.y]],
 [[%%
 start: ;
 AT_DATA([[input-unused.y]],
 [[%%
 start: ;


@@ -1003,7 +1270,7 @@ AT_CLEANUP
 ## %define Boolean variables.  ##
 ## --------------------------- ##
 
 ## %define Boolean variables.  ##
 ## --------------------------- ##
 

-AT_SETUP([[%define Boolean variables]])
+AT_SETUP([["%define" Boolean variables]])

 
 AT_DATA([Input.y],
 [[%language "Java"
 
 AT_DATA([Input.y],
 [[%language "Java"


@@ -1023,33 +1290,40 @@ AT_CLEANUP
 ## %define enum variables.  ##
 ## ------------------------ ##
 
 ## %define enum variables.  ##
 ## ------------------------ ##
 

-AT_SETUP([[%define enum variables]])
+AT_SETUP([["%define" enum variables]])
+
+# Check errors from the front-end, and the back-end.  Since the
+# front-end quits before calling the back-end, these tests cannot be
+# fused.

 
 # Front-end.
 AT_DATA([[input.y]],
 
 # Front-end.
 AT_DATA([[input.y]],

-[[%define lr.default-reductions bogus
+[[%define lr.default-reduction bogus

 %%
 start: ;
 ]])
 %%
 start: ;
 ]])

-AT_BISON_CHECK([[input.y]], [[1]], [[]],
-[[input.y:1.9-29: error: invalid value for %define variable 'lr.default-reductions': 'bogus'
-input.y:1.9-29:     accepted value: 'most'
-input.y:1.9-29:     accepted value: 'consistent'
-input.y:1.9-29:     accepted value: 'accepting'
+AT_BISON_CHECK([[-fcaret input.y]], [[1]], [[]],
+[[input.y:1.9-28: error: invalid value for %define variable 'lr.default-reduction': 'bogus'
+ %define lr.default-reduction bogus
+         ^^^^^^^^^^^^^^^^^^^^
+input.y:1.9-28:     accepted value: 'most'
+input.y:1.9-28:     accepted value: 'consistent'
+input.y:1.9-28:     accepted value: 'accepting'

 ]])
 
 # Back-end.
 ]])
 
 # Back-end.

-# FIXME: these should be indented, but we shouldn't mess with the m4 yet

 AT_DATA([[input.y]],
 [[%define api.push-pull neither
 %%
 start: ;
 ]])
 AT_DATA([[input.y]],
 [[%define api.push-pull neither
 %%
 start: ;
 ]])

-AT_BISON_CHECK([[input.y]], [1], [],
+AT_BISON_CHECK([[-fcaret input.y]], [[1]], [[]],

 [[input.y:1.9-21: error: invalid value for %define variable 'api.push-pull': 'neither'
 [[input.y:1.9-21: error: invalid value for %define variable 'api.push-pull': 'neither'

-input.y:1.9-21: error: accepted value: 'pull'
-input.y:1.9-21: error: accepted value: 'push'
-input.y:1.9-21: error: accepted value: 'both'
+ %define api.push-pull neither
+         ^^^^^^^^^^^^^
+input.y:1.9-21:     accepted value: 'pull'
+input.y:1.9-21:     accepted value: 'push'
+input.y:1.9-21:     accepted value: 'both'

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -1058,39 +1332,37 @@ AT_CLEANUP
 ## %define backward compatibility.  ##
 ## -------------------------------- ##
 
 ## %define backward compatibility.  ##
 ## -------------------------------- ##
 

-AT_SETUP([[%define backward compatibility]])
-
-# The error messages tell us whether underscores in these variables are
-# being converted to dashes.
+AT_SETUP([["%define" backward compatibility]])

 
 

+# The error messages tell us whether the variables are properly updated.

 AT_DATA([[input.y]],
 AT_DATA([[input.y]],

-[[%define api.push_pull "neither"
+[[%define api.push_pull both
+%define lr.keep_unreachable_states maybe
+%define namespace "foo"
+%define api.namespace "foo"
+%define variant

 %%
 start: ;
 ]])
 %%
 start: ;
 ]])

-AT_BISON_CHECK([[input.y]], [1], [],
-[[input.y:1.9-21: error: invalid value for %define variable 'api.push-pull': 'neither'
-input.y:1.9-21: error: accepted value: 'pull'
-input.y:1.9-21: error: accepted value: 'push'
-input.y:1.9-21: error: accepted value: 'both'
-]])
-
-AT_DATA([[input.y]],
-[[%define lr.keep_unreachable_states maybe
-%%
-start: ;
-]])
-AT_BISON_CHECK([[input.y]], [1], [],
-[[input.y:1.9-34: error: invalid value for %define Boolean variable 'lr.keep-unreachable-states'
-]])
-
-AT_DATA([[input.y]],
-[[%define foo_bar "baz"
-%%
-start: ;
-]])
-AT_BISON_CHECK([[input.y]], [[1]], [],
-[[input.y:1.9-15: error: %define variable 'foo_bar' is not used
+AT_BISON_CHECK([[-fcaret input.y]], [1], [],
+[[input.y:1.9-21: warning: deprecated directive, use '%define api.push-pull both' [-Wdeprecated]
+ %define api.push_pull both
+         ^^^^^^^^^^^^^
+input.y:2.9-34: warning: deprecated directive, use '%define lr.keep-unreachable-state maybe' [-Wdeprecated]
+ %define lr.keep_unreachable_states maybe
+         ^^^^^^^^^^^^^^^^^^^^^^^^^^
+input.y:3.9-17: warning: deprecated directive, use '%define api.namespace foo' [-Wdeprecated]
+ %define namespace "foo"
+         ^^^^^^^^^
+input.y:4.9-21: error: %define variable 'api.namespace' redefined
+ %define api.namespace "foo"
+         ^^^^^^^^^^^^^
+input.y:3.9-17:     previous definition
+ %define namespace "foo"
+         ^^^^^^^^^
+input.y:5.9-15: warning: deprecated directive, use '%define api.value.type variant' [-Wdeprecated]
+ %define variant
+         ^^^^^^^

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -1142,14 +1414,14 @@ m4_define([AT_CHECK_NAMESPACE_ERROR],
 AT_DATA([[input.y]],
 [[%language "C++"
 %defines
 AT_DATA([[input.y]],
 [[%language "C++"
 %defines

-%define namespace "]$1["
+%define api.namespace "]$1["

 %%
 start: ;
 ]])
 
 AT_BISON_CHECK([[input.y]], [1], [],
 [m4_foreach([b4_arg], m4_dquote(m4_shift($@)),
 %%
 start: ;
 ]])
 
 AT_BISON_CHECK([[input.y]], [1], [],
 [m4_foreach([b4_arg], m4_dquote(m4_shift($@)),

-[[input.y:3.9-17: error: ]b4_arg[
+[[input.y:3.9-21: error: ]b4_arg[

 ]])])
 ])
 
 ]])])
 ])
 


@@ -1197,12 +1469,22 @@ start: '
 ]])
 AT_CHECK([[$PERL -e "print 'start: \'';" >> empty.y || exit 77]])
 
 ]])
 AT_CHECK([[$PERL -e "print 'start: \'';" >> empty.y || exit 77]])
 

-AT_BISON_CHECK([empty.y], [1], [],
-[[empty.y:2.8-9: warning: empty character literal
-empty.y:3.8-4.0: warning: empty character literal
+AT_BISON_CHECK([-fcaret empty.y], [1], [],
+[[empty.y:2.8-9: warning: empty character literal [-Wother]
+ start: '';
+        ^^

 empty.y:3.8-4.0: error: missing "'" at end of line
 empty.y:3.8-4.0: error: missing "'" at end of line

-empty.y:4.8: warning: empty character literal
+ start: '
+        ^
+empty.y:3.8-4.0: warning: empty character literal [-Wother]
+ start: '
+        ^

 empty.y:4.8: error: missing "'" at end of file
 empty.y:4.8: error: missing "'" at end of file

+ start: '
+        ^
+empty.y:4.8: warning: empty character literal [-Wother]
+ start: '
+        ^

 ]])
 
 AT_DATA([two.y],
 ]])
 
 AT_DATA([two.y],


@@ -1213,11 +1495,11 @@ start: 'ab
 AT_CHECK([[$PERL -e "print 'start: \'ab';" >> two.y || exit 77]])
 
 AT_BISON_CHECK([two.y], [1], [],
 AT_CHECK([[$PERL -e "print 'start: \'ab';" >> two.y || exit 77]])
 
 AT_BISON_CHECK([two.y], [1], [],

-[[two.y:2.8-11: warning: extra characters in character literal
-two.y:3.8-4.0: warning: extra characters in character literal
+[[two.y:2.8-11: warning: extra characters in character literal [-Wother]

 two.y:3.8-4.0: error: missing "'" at end of line
 two.y:3.8-4.0: error: missing "'" at end of line

-two.y:4.8-10: warning: extra characters in character literal
+two.y:3.8-4.0: warning: extra characters in character literal [-Wother]

 two.y:4.8-10: error: missing "'" at end of file
 two.y:4.8-10: error: missing "'" at end of file

+two.y:4.8-10: warning: extra characters in character literal [-Wother]

 ]])
 
 AT_DATA([three.y],
 ]])
 
 AT_DATA([three.y],


@@ -1228,11 +1510,11 @@ start: 'abc
 AT_CHECK([[$PERL -e "print 'start: \'abc';" >> three.y || exit 77]])
 
 AT_BISON_CHECK([three.y], [1], [],
 AT_CHECK([[$PERL -e "print 'start: \'abc';" >> three.y || exit 77]])
 
 AT_BISON_CHECK([three.y], [1], [],

-[[three.y:2.8-12: warning: extra characters in character literal
-three.y:3.8-4.0: warning: extra characters in character literal
+[[three.y:2.8-12: warning: extra characters in character literal [-Wother]

 three.y:3.8-4.0: error: missing "'" at end of line
 three.y:3.8-4.0: error: missing "'" at end of line

-three.y:4.8-11: warning: extra characters in character literal
+three.y:3.8-4.0: warning: extra characters in character literal [-Wother]

 three.y:4.8-11: error: missing "'" at end of file
 three.y:4.8-11: error: missing "'" at end of file

+three.y:4.8-11: warning: extra characters in character literal [-Wother]

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -1259,25 +1541,25 @@ AT_CHECK([[$PERL -e 'print "start: \"\\\t\\\f\\\0\\\1\" ;";' >> input.y \
 
 AT_BISON_CHECK([input.y], [1], [],
 [[input.y:2.9-12: error: invalid number after \-escape: 777
 
 AT_BISON_CHECK([input.y], [1], [],
 [[input.y:2.9-12: error: invalid number after \-escape: 777

-input.y:2.8-13: warning: empty character literal
+input.y:2.8-13: warning: empty character literal [-Wother]

 input.y:2.16-17: error: invalid number after \-escape: 0
 input.y:2.16-17: error: invalid number after \-escape: 0

-input.y:2.15-18: warning: empty character literal
+input.y:2.15-18: warning: empty character literal [-Wother]

 input.y:2.21-25: error: invalid number after \-escape: xfff
 input.y:2.21-25: error: invalid number after \-escape: xfff

-input.y:2.20-26: warning: empty character literal
+input.y:2.20-26: warning: empty character literal [-Wother]

 input.y:2.29-31: error: invalid number after \-escape: x0
 input.y:2.29-31: error: invalid number after \-escape: x0

-input.y:2.28-32: warning: empty character literal
+input.y:2.28-32: warning: empty character literal [-Wother]

 input.y:3.9-14: error: invalid number after \-escape: uffff
 input.y:3.9-14: error: invalid number after \-escape: uffff

-input.y:3.8-15: warning: empty character literal
+input.y:3.8-15: warning: empty character literal [-Wother]

 input.y:3.18-23: error: invalid number after \-escape: u0000
 input.y:3.18-23: error: invalid number after \-escape: u0000

-input.y:3.17-24: warning: empty character literal
+input.y:3.17-24: warning: empty character literal [-Wother]

 input.y:3.27-36: error: invalid number after \-escape: Uffffffff
 input.y:3.27-36: error: invalid number after \-escape: Uffffffff

-input.y:3.26-37: warning: empty character literal
+input.y:3.26-37: warning: empty character literal [-Wother]

 input.y:3.40-49: error: invalid number after \-escape: U00000000
 input.y:3.40-49: error: invalid number after \-escape: U00000000

-input.y:3.39-50: warning: empty character literal
+input.y:3.39-50: warning: empty character literal [-Wother]

 input.y:4.9-10: error: invalid character after \-escape: ' '
 input.y:4.9-10: error: invalid character after \-escape: ' '

-input.y:4.8-11: warning: empty character literal
+input.y:4.8-11: warning: empty character literal [-Wother]

 input.y:4.14-15: error: invalid character after \-escape: A
 input.y:4.14-15: error: invalid character after \-escape: A

-input.y:4.13-16: warning: empty character literal
+input.y:4.13-16: warning: empty character literal [-Wother]

 input.y:5.9-16: error: invalid character after \-escape: \t
 input.y:5.17: error: invalid character after \-escape: \f
 input.y:5.18: error: invalid character after \-escape: \0
 input.y:5.9-16: error: invalid character after \-escape: \t
 input.y:5.17: error: invalid character after \-escape: \f
 input.y:5.18: error: invalid character after \-escape: \0


@@ -1322,20 +1604,19 @@ foo-bar: ;
 
 # -Werror is not enabled by -Wall or equivalent.
 AT_BISON_CHECK([[-Wall input.y]], [[0]], [[]],
 
 # -Werror is not enabled by -Wall or equivalent.
 AT_BISON_CHECK([[-Wall input.y]], [[0]], [[]],

-[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar
+[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]

 ]])
 AT_BISON_CHECK([[-W input.y]], [[0]], [[]],
 ]])
 AT_BISON_CHECK([[-W input.y]], [[0]], [[]],

-[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar
+[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]

 ]])
 AT_BISON_CHECK([[-Wno-none input.y]], [[0]], [[]],
 ]])
 AT_BISON_CHECK([[-Wno-none input.y]], [[0]], [[]],

-[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar
+[[input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar [-Wyacc]

 ]])
 
 # -Werror is not disabled by -Wnone or equivalent.
 AT_BISON_CHECK([[-Werror,none,yacc input.y]], [[1]], [[]], [[stderr]])
 AT_CHECK([[sed 's/^.*bison:/bison:/' stderr]], [[0]],
 ]])
 
 # -Werror is not disabled by -Wnone or equivalent.
 AT_BISON_CHECK([[-Werror,none,yacc input.y]], [[1]], [[]], [[stderr]])
 AT_CHECK([[sed 's/^.*bison:/bison:/' stderr]], [[0]],

-[[bison: warnings being treated as errors
-input.y:2.1-7: warning: POSIX Yacc forbids dashes in symbol names: foo-bar
+[[input.y:2.1-7: error: POSIX Yacc forbids dashes in symbol names: foo-bar [-Werror=yacc]

 ]])
 [mv stderr experr]
 AT_BISON_CHECK([[-Werror,no-all,yacc input.y]], [[1]], [[]], [[experr]])
 ]])
 [mv stderr experr]
 AT_BISON_CHECK([[-Werror,no-all,yacc input.y]], [[1]], [[]], [[experr]])


@@ -1347,7 +1628,7 @@ AT_CLEANUP
 ## %name-prefix and %define api.prefix are incompatible.  ##
 ## ------------------------------------------------------ ##
 
 ## %name-prefix and %define api.prefix are incompatible.  ##
 ## ------------------------------------------------------ ##
 

-AT_SETUP([[%name-prefix and %define api.prefix are incompatible]])
+AT_SETUP([[%name-prefix and api.prefix are incompatible]])

 
 # AT_TEST(DIRECTIVES, OPTIONS, ERROR-LOCATION)
 # --------------------------------------------
 
 # AT_TEST(DIRECTIVES, OPTIONS, ERROR-LOCATION)
 # --------------------------------------------


@@ -1382,23 +1663,27 @@ AT_SETUP([[Stray $ or @]])
 # check that the warnings are reported once, not three times.
 
 AT_DATA_GRAMMAR([[input.y]],
 # check that the warnings are reported once, not three times.
 
 AT_DATA_GRAMMAR([[input.y]],

-[[%token TOK
+[[%type <TYPE> exp
+%token <TYPE> TOK TOK2

 %destructor     { $%; @%; } <*> exp TOK;
 %initial-action { $%; @%; };
 %printer        { $%; @%; } <*> exp TOK;
 %destructor     { $%; @%; } <*> exp TOK;
 %initial-action { $%; @%; };
 %printer        { $%; @%; } <*> exp TOK;

+%{ $ @ %} // Should not warn.

 %%
 exp: TOK        { $%; @%; $$ = $1; };
 %%
 exp: TOK        { $%; @%; $$ = $1; };

+%%
+$ @ // Should not warn.

 ]])
 
 ]])
 

-AT_BISON_CHECK([[input.y]], 0, [],
-[[input.y:10.19: warning: stray '$'
-input.y:10.23: warning: stray '@'
-input.y:11.19: warning: stray '$'
-input.y:11.23: warning: stray '@'
-input.y:12.19: warning: stray '$'
-input.y:12.23: warning: stray '@'
-input.y:14.19: warning: stray '$'
-input.y:14.23: warning: stray '@'
+AT_BISON_CHECK([[-Wall input.y]], 0, [],
+[[input.y:11.19: warning: stray '$' [-Wother]
+input.y:11.23: warning: stray '@' [-Wother]
+input.y:12.19: warning: stray '$' [-Wother]
+input.y:12.23: warning: stray '@' [-Wother]
+input.y:13.19: warning: stray '$' [-Wother]
+input.y:13.23: warning: stray '@' [-Wother]
+input.y:16.19: warning: stray '$' [-Wother]
+input.y:16.23: warning: stray '@' [-Wother]

 ]])
 
 AT_CLEANUP
 ]])
 
 AT_CLEANUP


@@ -1421,6 +1706,7 @@ m4_pushdef([AT_TEST],
 [AT_DATA([[input.y]],
 [[%type <$1(DEAD %type)> exp
 %token <$1(DEAD %token)> a
 [AT_DATA([[input.y]],
 [[%type <$1(DEAD %type)> exp
 %token <$1(DEAD %token)> a

+%token b

 %initial-action
 {
   $$;
 %initial-action
 {
   $$;


@@ -1441,13 +1727,13 @@ m4_pushdef([AT_TEST],
 };
 %%
 exp:
 };
 %%
 exp:

-  a a[last]
+  a a[name] b

   {
     $$;
     $][1;
     $<$1(DEAD action 1)>$
     $<$1(DEAD action 2)>1
   {
     $$;
     $][1;
     $<$1(DEAD action 1)>$
     $<$1(DEAD action 2)>1

-    $<$1(DEAD action 3)>last
+    $<$1(DEAD action 3)>name

     $<$1(DEAD action 4)>0
     ;
   };
     $<$1(DEAD action 4)>0
     ;
   };


@@ -1467,3 +1753,121 @@ AT_TEST([@:>@m4_errprintn])
 m4_popdef([AT_TEST])
 
 AT_CLEANUP
 m4_popdef([AT_TEST])
 
 AT_CLEANUP

+
+##----------------------- ##
+## Deprecated directives. ##
+## ---------------------- ##
+
+AT_SETUP([[Deprecated directives]])
+
+AT_KEYWORDS([[deprec]])
+
+AT_DATA_GRAMMAR([[input.y]],
+[[
+%default_prec
+%error_verbose
+%expect_rr 0
+%file-prefix = "foo"
+%file-prefix
+ =
+"bar"
+%fixed-output_files
+%fixed_output-files
+%fixed-output-files
+%name-prefix= "foo"
+%no-default_prec
+%no_default-prec
+%no_lines
+%output = "foo"
+%pure_parser
+%token_table
+%glr-parser
+%% exp : '0'
+]])
+
+AT_BISON_CHECK([[input.y]], [[0]], [[]],
+[[input.y:10.1-13: warning: deprecated directive: '%default_prec', use '%default-prec' [-Wdeprecated]
+input.y:11.1-14: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
+input.y:12.1-10: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
+input.y:13.1-14: warning: deprecated directive: '%file-prefix =', use '%file-prefix' [-Wdeprecated]
+input.y:14.1-15.2: warning: deprecated directive: '%file-prefix\n =', use '%file-prefix' [-Wdeprecated]
+input.y:17.1-19: warning: deprecated directive: '%fixed-output_files', use '%fixed-output-files' [-Wdeprecated]
+input.y:18.1-19: warning: deprecated directive: '%fixed_output-files', use '%fixed-output-files' [-Wdeprecated]
+input.y:20.1-13: warning: deprecated directive: '%name-prefix=', use '%name-prefix' [-Wdeprecated]
+input.y:21.1-16: warning: deprecated directive: '%no-default_prec', use '%no-default-prec' [-Wdeprecated]
+input.y:22.1-16: warning: deprecated directive: '%no_default-prec', use '%no-default-prec' [-Wdeprecated]
+input.y:23.1-9: warning: deprecated directive: '%no_lines', use '%no-lines' [-Wdeprecated]
+input.y:24.1-9: warning: deprecated directive: '%output =', use '%output' [-Wdeprecated]
+input.y:25.1-12: warning: deprecated directive: '%pure_parser', use '%pure-parser' [-Wdeprecated]
+input.y:26.1-12: warning: deprecated directive: '%token_table', use '%token-table' [-Wdeprecated]
+]])
+
+AT_CLEANUP
+
+## ---------------------------- ##
+## Unput's effect on locations. ##
+## ---------------------------- ##
+dnl When the scanner detects a deprecated construct, it unputs the correct
+dnl version, but it should *not* have any impact on the scanner cursor. If it
+dnl does, the locations of directives on the same line become erroneous.
+
+AT_SETUP([[Unput's effect on locations]])
+
+AT_KEYWORDS([[deprec]])
+
+AT_DATA_GRAMMAR([[input.y]],
+[[
+%glr-parser
+%expect_rr 42 %expect_rr 42
+              %expect_rr 42
+%error_verbose %error_verbose
+               %error_verbose
+%% exp: '0'
+]])
+
+AT_BISON_CHECK([[input.y]], [[1]], [[]],
+[[input.y:11.1-10: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
+input.y:11.15-24: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
+input.y:12.15-24: warning: deprecated directive: '%expect_rr', use '%expect-rr' [-Wdeprecated]
+input.y:13.1-14: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
+input.y:13.16-29: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
+input.y:13.11-21: error: %define variable 'parse.error' redefined
+input.y:13-6:         previous definition
+input.y:14.16-29: warning: deprecated directive: '%error_verbose', use '%define parse.error verbose' [-Wdeprecated]
+input.y:14.11-21: error: %define variable 'parse.error' redefined
+input.y:13.11-21:     previous definition
+]])
+
+AT_CLEANUP
+
+##--------------------------- ##
+## Non-deprecated directives. ##
+## -------------------------- ##
+
+AT_SETUP([[Non-deprecated directives]])
+
+AT_KEYWORDS([[deprec]])
+
+AT_DATA_GRAMMAR([[input.y]],
+[[
+%default-prec
+%error-verbose
+%expect-rr 42
+%file-prefix "foo"
+%file-prefix
+"bar"
+%fixed-output-files
+%name-prefix "foo"
+%no-default-prec
+%no-lines
+%output "foo"
+%pure-parser
+%token-table
+%% exp : '0'
+]])
+
+AT_BISON_CHECK([[input.y]], [[0]], [[]],
+[[input.y: warning: %expect-rr applies only to GLR parsers [-Wother]
+]])
+
+AT_CLEANUP