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cex: enforce case for tokens/nonterminals

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It's unfortunate that the traditions between formal language theory
and Yacc differs, but here, tokens should be upper case, and
nonterminals should be lower case.

* tests/counterexample.at: Comply with this.
This commit is contained in:
Akim Demaille
2020-06-07 08:25:53 +02:00
parent 1ccb4be02b
commit 296e2f90ab
1 changed files with 25 additions and 25 deletions
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50
tests/counterexample.at
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@@ -530,22 +530,22 @@ AT_SETUP([Deep Null Unifying])
AT_KEYWORDS([cex])
AT_DATA([[input.y]],
[[%token a d
[[%token A D
%%
S: a A D | a A A D;
A: B;
B: C
C: %empty
D: d;
s: A a d | A a a d;
a: b;
b: c
c: %empty
d: D;
]])
AT_BISON_CHECK_CEX([input.y], [], [],
[[Shift/reduce conflict on token d:
3: 5 C: . %empty
3: 6 D: . d
Example a A • d
First derivation S ::=[ a A A ::=[ B ::=[ C ::=[ • ] ] ] D ::=[ d ] ]
Second derivation S ::=[ a A D ::=[ • d ] ]
[[Shift/reduce conflict on token D:
3: 5 c: . %empty
3: 6 d: . D
Example A a • D
First derivation s ::=[ A a a ::=[ b ::=[ c ::=[ • ] ] ] d ::=[ D ] ]
Second derivation s ::=[ A a d ::=[ • D ] ]
input.y: warning: 1 shift/reduce conflict [-Wconflicts-sr]
]])
@@ -562,23 +562,23 @@ AT_SETUP([Deep Null Non-unifying])
AT_KEYWORDS([cex])
AT_DATA([[input.y]],
[[%token a d e
[[%token A D E
%%
S: a A D | a A A D e;
A: B;
B: C
C: %empty
D: d;
s: A a d | A a a d E;
a: b;
b: c
c: %empty
d: D;
]])
AT_BISON_CHECK_CEX([input.y], [], [],
[[Shift/reduce conflict on token d:
3: 5 C: . %empty
3: 6 D: . d
First Example a A • d e $end
First derivation $accept ::=[ S ::=[ a A A ::=[ B ::=[ C ::=[ • ] ] ] D ::=[ d ] e ] $end ]
Second Example a A • d $end
Second derivation $accept ::=[ S ::=[ a A D ::=[ • d ] ] $end ]
[[Shift/reduce conflict on token D:
3: 5 c: . %empty
3: 6 d: . D
First Example A a • D E $end
First derivation $accept ::=[ s ::=[ A a a ::=[ b ::=[ c ::=[ • ] ] ] d ::=[ D ] E ] $end ]
Second Example A a • D $end
Second derivation $accept ::=[ s ::=[ A a d ::=[ • D ] ] $end ]
input.y: warning: 1 shift/reduce conflict [-Wconflicts-sr]
]])