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Remove `%thong' support as it is undocumented, unused, duplicates

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`%token's job, and creates useless e-mail traffic with people who
want to know what it is, why it is undocumented, unused, and
duplicates `%token's job.
* src/reader.c (parse_thong_decl): Remove.
* src/options.c (option_table): Remove "thong".
* src/lex.h (tok_thong): Remove.
This commit is contained in:
Akim Demaille
2002-06-10 08:37:30 +00:00
parent 3ae2b51f08
commit 8b9f2372c7
4 changed files with 11 additions and 83 deletions
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11
ChangeLog
View File

@@ -1,3 +1,14 @@
2002-06-10 Akim Demaille <akim@epita.fr>
Remove `%thong' support as it is undocumented, unused, duplicates
`%token's job, and creates useless e-mail traffic with people who
want to know what it is, why it is undocumented, unused, and
duplicates `%token's job.
* src/reader.c (parse_thong_decl): Remove.
* src/options.c (option_table): Remove "thong".
* src/lex.h (tok_thong): Remove.
2002-06-10 Akim Demaille <akim@epita.fr>
* src/symtab.c, src/symtab.c (symbol_type_set)

1
src/lex.h
View File

@@ -46,7 +46,6 @@ typedef enum token_e
tok_typename,
tok_number,
tok_expect,
tok_thong,
tok_define,
tok_skel,
tok_noop,

1
src/options.c
View File

@@ -87,7 +87,6 @@ const struct option_table_s option_table[] =
DRTV ("type", no, NULL, tok_type)
DRTV ("union", no, NULL, tok_union)
DRTV ("expect", no, NULL, tok_expect)
DRTV ("thong", no, NULL, tok_thong)
DRTV ("start", no, NULL, tok_start)
DRTV ("left", no, NULL, tok_left)
DRTV ("right", no, NULL, tok_right)

81
src/reader.c
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@@ -800,83 +800,6 @@ parse_expect_decl (void)
}
/*-------------------------------------------------------------------.
| Parse what comes after %thong. the full syntax is |
| |
| %thong <type> token number literal |
| |
| the <type> or number may be omitted. The number specifies the |
| user_token_number. |
| |
| Two symbols are entered in the table, one for the token symbol and |
| one for the literal. Both are given the <type>, if any, from the |
| declaration. The ->user_token_number of the first is |
| USER_NUMBER_ALIAS and the ->user_token_number of the second is set |
| to the number, if any, from the declaration. The two symbols are |
| linked via pointers in their ->alias fields. |
| |
| During OUTPUT_DEFINES_TABLE, the symbol is reported thereafter, |
| only the literal string is retained it is the literal string that |
| is output to yytname |
`-------------------------------------------------------------------*/
static void
parse_thong_decl (void)
{
token_t token;
symbol_t *symbol;
char *typename = 0;
int usrtoknum = USER_NUMBER_UNDEFINED;
token = lex (); /* fetch typename or first token */
if (token == tok_typename)
{
typename = xstrdup (token_buffer);
token = lex (); /* fetch first token */
}
/* process first token */
if (token != tok_identifier)
{
complain (_("unrecognized item %s, expected an identifier"),
token_buffer);
skip_to_char ('%');
return;
}
symval->class = token_sym;
symval->type_name = typename;
symval->user_token_number = USER_NUMBER_ALIAS;
symbol = symval;
token = lex (); /* get number or literal string */
if (token == tok_number)
{
usrtoknum = numval;
token = lex (); /* okay, did number, now get literal */
}
/* process literal string token */
if (token != tok_identifier || *symval->tag != '\"')
{
complain (_("expected string constant instead of %s"), token_buffer);
skip_to_char ('%');
return;
}
symval->class = token_sym;
symval->type_name = typename;
symval->user_token_number = usrtoknum;
symval->alias = symbol;
symbol->alias = symval;
/* symbol and symval combined are only one symbol. */
nsyms--;
}
static void
parse_muscle_decl (void)
{
@@ -1022,10 +945,6 @@ read_declarations (void)
parse_expect_decl ();
break;
case tok_thong:
parse_thong_decl ();
break;
case tok_left:
parse_assoc_decl (left_assoc);
break;