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revision 1.705 by akim, Tue Jun 11 08:08:36 2002 UTC revision 1.706 by akim, Tue Jun 11 20:16:05 2002 UTC
# Line 1  Line 1 
1  2002-06-11  Akim Demaille  <akim@epita.fr>  2002-06-11  Akim Demaille  <akim@epita.fr>
2    
3            Have Bison grammars parsed by a Bison grammar.
4    
5            * src/reader.c, src/reader.h (prologue_augment): New.
6            * src/reader.c (copy_definition): Remove.
7    
8            * src/reader.h, src/reader.c (gram_start_symbol_set, prologue_augment)
9            (grammar_symbol_append, grammar_rule_begin, grammar_midrule_action)
10            (grammar_current_rule_prec_set, grammar_current_rule_check)
11            (grammar_current_rule_symbol_append)
12            (grammar_current_rule_action_append): Export.
13            * src/parse-gram.y (symbol_list_new, symbol_list_symbol_append_
14            (symbol_list_action_append): Remove.
15            Hook the routines from reader.
16            * src/scan-gram.l: In INITIAL, characters and strings are tokens.
17            * src/system.h (ATTRIBUTE_NORETURN, ATTRIBUTE_UNUSED): Now.
18    
19            * src/reader.c (read_declarations): Remove, unused.
20    
21            * src/parse-gram.y: Handle the epilogue.
22            * src/reader.h, src/reader.c (gram_start_symbol_set): Rename as...
23            (grammar_start_symbol_set): this.
24            * src/scan-gram.l: Be sure to ``use'' yycontrol to keep GCC quiet.
25            * src/reader.c (readgram): Remove, unused.
26            (reader): Adjust to insert eoftoken and axiom where appropriate.
27    
28            * src/reader.c (copy_dollar): Replace with...
29            * src/scan-gram.h (handle_dollar): this.
30            * src/parse-gram.y: Remove `%thong'.
31    
32            * src/reader.c (copy_at): Replace with...
33            * src/scan-gram.h (handle_at): this.
34    
35            * src/complain.h, src/complain.c (warn_at, complain_at, fatal_at):
36            New.
37    
38            * src/scan-gram.l (YY_LINES): Keep lineno synchronized for the
39            time being.
40    
41            * src/reader.h, src/reader.c (grammar_rule_end): New.
42    
43            * src/parse.y (current_type, current_class): New.
44            Implement `%nterm', `%token' support.
45            Merge `%term' into `%token'.
46            (string_as_id): New.
47            * src/symtab.h, src/symtab.c (symbol_make_alias): Don't pass the
48            type name.
49    
50            * src/parse-gram.y: Be sure to handle properly the beginning of
51            rules.
52    
53            * src/parse-gram.y: Handle %type.
54            * src/reader.c (grammar_rule_end): Call grammar_current_rule_check.
55    
56            * src/parse-gram.y: More directives support.
57            * src/options.c: No longer handle source directives.
58    
59            * src/parse-gram.y: Fix %output.
60    
61            * src/parse-gram.y: Handle %union.
62            Use the prologue locations.
63            * src/reader.c (parse_union_decl): Remove.
64    
65            * src/reader.h, src/reader.c (epilogue_set): New.
66            * src/parse-gram.y: Use it.
67    
68            * data/bison.simple, data/bison.c++: b4_stype is now either not
69            defined, then default to int, or to the contents of %union,
70            without `union' itself.
71            Adjust.
72            * src/muscle_tab.c (muscle_init): Don't predefine `stype'.
73    
74            * src/output.c (actions_output): Don't output braces, as they are
75            already handled by the scanner.
76    
77            * src/scan-gram.l (SC_CHARACTER): Set the user_token_number of
78            characters to themselves.
79    
80            * tests/reduce.at (Reduced Automaton): End the grammars with %% so
81            that the epilogue has a proper #line.
82    
83            * src/parse-gram.y: Handle precedence/associativity.
84    
85            * src/symtab.c (symbol_precedence_set): Requires the symbol to be
86            a terminal.
87            * src/scan-gram.l (SC_BRACED_CODE): Catch strings and characters.
88            * tests/calc.at: Do not use `%token "foo"' as it makes not sense
89            at all to define terminals that cannot be emitted.
90    
91            * src/scan-gram.l: Escape M4 characters.
92    
93            * src/scan-gram.l: Working properly with escapes in user
94            strings/characters.
95    
96            * tests/torture.at (AT_DATA_TRIANGULAR_GRAMMAR)
97            (AT_DATA_HORIZONTAL_GRAMMAR): Respect the `%token ID NUM STRING'
98            grammar.
99            Use more modest sizes, as for the time being the parser does not
100            release memory, and therefore the process swallows a huge amount
101            of memory.
102    
103            * tests/torture.at (AT_DATA_LOOKAHEADS_GRAMMAR): Adjust to the
104            stricter %token grammar.
105    
106            * src/symtab.h (associativity): Add `undef_assoc'.
107            (symbol_precedence_set): Do nothing when passed an undef_assoc.
108            * src/symtab.c (symbol_check_alias_consistence): Adjust.
109    
110            * tests/regression.at (Invalid %directive): Remove, as it is now
111            meaningless.
112            (Invalid inputs): Adjust to the new error messages.
113            (Token definitions): The new grammar doesn't allow too many
114            eccentricities.
115    
116            * src/lex.h, src/lex.c: Remove.
117            * src/reader.c (lastprec, skip_to_char, read_signed_integer)
118            (copy_character, copy_string2, copy_string, copy_identifier)
119            (copy_comment, parse_token_decl, parse_type_decl, parse_assoc_decl)
120            (parse_muscle_decl, parse_dquoted_param, parse_skel_decl)
121            (parse_action): Remove.
122            * po/POTFILES.in: Adjust.
123    
124    2002-06-11  Akim Demaille  <akim@epita.fr>
125    
126          * src/reader.c  (parse_action): Don't store directly into the          * src/reader.c  (parse_action): Don't store directly into the
127          rule's action member: return the action as a string.          rule's action member: return the action as a string.
128          Don't require `rule_length' as an argument: compute it.          Don't require `rule_length' as an argument: compute it.

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