# Bison Regressions. -*- Autotest -*-
-# Copyright 2001 Free Software Foundation, Inc.
+# Copyright 2001, 2002 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
AT_BANNER([[Regression tests.]])
-## ------------------- ##
-## %nonassoc and eof. ##
-## ------------------- ##
-
-AT_SETUP([%nonassoc and eof])
-
-AT_DATA([input.y],
-[[
-%{
-#include <stdio.h>
-
-#define YYERROR_VERBOSE 1
-#define yyerror(Msg) \
-do { \
- fprintf (stderr, "%s\n", Msg); \
- exit (1); \
-} while (0)
-
-/* The current argument. */
-static const char *input = NULL;
-
-static int
-yylex (void)
-{
- /* No token stands for end of file. */
- if (input && *input)
- return *input++;
- else
- return 0;
-}
-
-%}
-
-%nonassoc '<' '>'
-
-%%
-expr: expr '<' expr
- | expr '>' expr
- | '0'
- ;
-%%
-int
-main (int argc, const char *argv[])
-{
- if (argc > 1)
- input = argv[1];
- return yyparse ();
-}
-]])
-
-# Specify the output files to avoid problems on different file systems.
-AT_CHECK([bison input.y -o input.c])
-AT_CHECK([$CC $CFLAGS $CPPFLAGS input.c -o input], 0, [], [ignore])
-
-AT_CHECK([./input '0<0'])
-# FIXME: This is an actual bug, but a new one, in the sense that
-# no one has ever spotted it! The messages are *wrong*: there should
-# be nothing there, it should be expected eof.
-AT_CHECK([./input '0<0<0'], [1], [],
- [parse error, unexpected '<', expecting '<' or '>'
-])
-
-AT_CHECK([./input '0>0'])
-AT_CHECK([./input '0>0>0'], [1], [],
- [parse error, unexpected '>', expecting '<' or '>'
-])
-
-AT_CHECK([./input '0<0>0'], [1], [],
- [parse error, unexpected '>', expecting '<' or '>'
-])
-
-AT_CLEANUP
-
## ---------------- ##
## Braces parsing. ##
## ---------------- ##
AT_CLEANUP
-## ------------------------- ##
-## Unresolved SR Conflicts. ##
-## ------------------------- ##
-
-AT_SETUP([Unresolved SR Conflicts])
-
-AT_DATA([input.y],
-[[%token NUM OP
-%%
-exp: exp OP exp | NUM;
-]])
-
-AT_CHECK([bison input.y -o input.c -v], 0, [],
-[input.y contains 1 shift/reduce conflict.
-])
-
-# Check the contents of the report.
-AT_CHECK([cat input.output], [],
-[[State 5 contains 1 shift/reduce conflict.
-
-
-Grammar
-
- Number, Line, Rule
- 0 3 $axiom -> exp $
- 1 3 exp -> exp OP exp
- 2 3 exp -> NUM
-
-
-Terminals, with rules where they appear
-
-$ (0) 0
-error (256)
-NUM (257) 2
-OP (258) 1
-
-
-Nonterminals, with rules where they appear
-
-$axiom (5)
- on left: 0
-exp (6)
- on left: 1 2, on right: 0 1
-
-
-state 0
-
- NUM shift, and go to state 1
-
- exp go to state 2
-
-
-
-state 1
-
- exp -> NUM . (rule 2)
-
- $default reduce using rule 2 (exp)
-
-
-
-state 2
-
- $axiom -> exp . $ (rule 0)
- exp -> exp . OP exp (rule 1)
-
- $ shift, and go to state 3
- OP shift, and go to state 4
-
-
-
-state 3
-
- $axiom -> exp $ . (rule 0)
-
- $default accept
-
-
-state 4
-
- exp -> exp OP . exp (rule 1)
-
- NUM shift, and go to state 1
-
- exp go to state 5
-
-
-
-state 5
-
- exp -> exp . OP exp (rule 1)
- exp -> exp OP exp . (rule 1)
-
- OP shift, and go to state 4
-
- OP [reduce using rule 1 (exp)]
- $default reduce using rule 1 (exp)
-
-
-
-]])
-
-AT_CLEANUP
-
-
-## --------------------- ##
-## Solved SR Conflicts. ##
-## --------------------- ##
-
-AT_SETUP([Solved SR Conflicts])
-
-AT_DATA([input.y],
-[[%token NUM OP
-%right OP
-%%
-exp: exp OP exp | NUM;
-]])
-
-AT_CHECK([bison input.y -o input.c -v], 0, [], [])
-
-# Check the contents of the report.
-AT_CHECK([cat input.output], [],
-[[Conflict in state 5 between rule 2 and token OP resolved as shift.
-
-
-Grammar
-
- Number, Line, Rule
- 0 4 $axiom -> exp $
- 1 4 exp -> exp OP exp
- 2 4 exp -> NUM
-
-
-Terminals, with rules where they appear
-
-$ (0) 0
-error (256)
-NUM (257) 2
-OP (258) 1
-
-
-Nonterminals, with rules where they appear
-
-$axiom (5)
- on left: 0
-exp (6)
- on left: 1 2, on right: 0 1
-
-
-state 0
-
- NUM shift, and go to state 1
-
- exp go to state 2
-
-
-
-state 1
-
- exp -> NUM . (rule 2)
-
- $default reduce using rule 2 (exp)
-
-
-
-state 2
-
- $axiom -> exp . $ (rule 0)
- exp -> exp . OP exp (rule 1)
-
- $ shift, and go to state 3
- OP shift, and go to state 4
-
-
-
-state 3
-
- $axiom -> exp $ . (rule 0)
-
- $default accept
-
-
-state 4
-
- exp -> exp OP . exp (rule 1)
-
- NUM shift, and go to state 1
-
- exp go to state 5
-
-
-
-state 5
-
- exp -> exp . OP exp (rule 1)
- exp -> exp OP exp . (rule 1)
-
- OP shift, and go to state 4
-
- $default reduce using rule 1 (exp)
-
-
-
-]])
-
-AT_CLEANUP
-
-
-
-
## ------------------- ##
## Rule Line Numbers. ##
## ------------------- ##
state 0
+ $axiom -> . expr $ (rule 0)
+
'a' shift, and go to state 1
$default reduce using rule 3 (@2)
-## -------------------- ##
-## %expect not enough. ##
-## -------------------- ##
-
-AT_SETUP([%expect not enough])
-
-AT_DATA([input.y],
-[[%token NUM OP
-%expect 0
-%%
-exp: exp OP exp | NUM;
-]])
-
-AT_CHECK([bison input.y -o input.c], 1, [],
-[input.y contains 1 shift/reduce conflict.
-expected 0 shift/reduce conflicts
-])
-AT_CLEANUP
-
-
-## --------------- ##
-## %expect right. ##
-## --------------- ##
-
-AT_SETUP([%expect right])
-
-AT_DATA([input.y],
-[[%token NUM OP
-%expect 1
-%%
-exp: exp OP exp | NUM;
-]])
-
-AT_CHECK([bison input.y -o input.c], 0)
-AT_CLEANUP
-
-
-## ------------------ ##
-## %expect too much. ##
-## ------------------ ##
-
-AT_SETUP([%expect too much])
-
-AT_DATA([input.y],
-[[%token NUM OP
-%expect 2
-%%
-exp: exp OP exp | NUM;
-]])
-
-AT_CHECK([bison input.y -o input.c], 1, [],
-[input.y contains 1 shift/reduce conflict.
-expected 2 shift/reduce conflicts
-])
-AT_CLEANUP
-
-
## ---------------------- ##
## Mixing %token styles. ##
## ---------------------- ##
@1 (11)
on left: 4, on right: 5
state 0
+ $axiom -> . CONST_DEC_PART $ (rule 0)
$default reduce using rule 4 (@1)
CONST_DEC_PART go to state 1
CONST_DEC_LIST go to state 2
projects / bison.git / blobdiff