/* FLEX lexer for Ada expressions, for GDB.
- Copyright (C) 1994-2015 Free Software Foundation, Inc.
+ Copyright (C) 1994-2020 Free Software Foundation, Inc.
This file is part of GDB.
%{
+#include "diagnostics.h"
+
+/* Some old versions of flex generate code that uses the "register" keyword,
+ which clang warns about. This was observed for example with flex 2.5.35,
+ as shipped with macOS 10.12. */
+DIAGNOSTIC_PUSH
+DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
+
#define NUMERAL_WIDTH 256
#define LONGEST_SIGN ((ULONGEST) 1 << (sizeof(LONGEST) * HOST_CHAR_BIT - 1))
#undef YY_INPUT
#define YY_INPUT(BUF, RESULT, MAX_SIZE) \
- if ( *lexptr == '\000' ) \
+ if ( *pstate->lexptr == '\000' ) \
(RESULT) = YY_NULL; \
else \
{ \
- *(BUF) = *lexptr; \
+ *(BUF) = *pstate->lexptr; \
(RESULT) = 1; \
- lexptr += 1; \
+ pstate->lexptr += 1; \
}
static int find_dot_all (const char *);
+/* Depth of parentheses. */
+static int paren_depth;
+
%}
-%option case-insensitive interactive nodefault
+%option case-insensitive interactive nodefault noyywrap
%s BEFORE_QUAL_QUOTE
/* ATTRIBUTES */
-{TICK}[a-zA-Z][a-zA-Z]+ { return processAttribute (yytext+1); }
+{TICK}[a-zA-Z][a-zA-Z_]+ { BEGIN INITIAL; return processAttribute (yytext+1); }
/* PUNCTUATION */
[-&*+./:<>=|;\[\]] { return yytext[0]; }
-"," { if (paren_depth == 0 && comma_terminates)
+"," { if (paren_depth == 0 && pstate->comma_terminates)
{
rewind_to_char (',');
return 0;
"$"({LETTER}|{DIG}|"$")* {
yylval.sval.ptr = yytext;
yylval.sval.length = yyleng;
- return SPECIAL_VARIABLE;
+ return DOLLAR_VARIABLE;
}
/* CATCH-ALL ERROR CASE */
lexer_init (FILE *inp)
{
BEGIN INITIAL;
+ paren_depth = 0;
yyrestart (inp);
}
exp -= 1;
}
- if ((result >> (gdbarch_int_bit (parse_gdbarch (par_state))-1)) == 0)
+ if ((result >> (gdbarch_int_bit (par_state->gdbarch ())-1)) == 0)
yylval.typed_val.type = type_int (par_state);
- else if ((result >> (gdbarch_long_bit (parse_gdbarch (par_state))-1)) == 0)
+ else if ((result >> (gdbarch_long_bit (par_state->gdbarch ())-1)) == 0)
yylval.typed_val.type = type_long (par_state);
- else if (((result >> (gdbarch_long_bit (parse_gdbarch (par_state))-1)) >> 1) == 0)
+ else if (((result >> (gdbarch_long_bit (par_state->gdbarch ())-1)) >> 1) == 0)
{
/* We have a number representable as an unsigned integer quantity.
For consistency with the C treatment, we will treat it as an
assignment does the trick (no, it doesn't; read the reference manual).
*/
yylval.typed_val.type
- = builtin_type (parse_gdbarch (par_state))->builtin_unsigned_long;
+ = builtin_type (par_state->gdbarch ())->builtin_unsigned_long;
if (result & LONGEST_SIGN)
yylval.typed_val.val =
(LONGEST) (result & ~LONGEST_SIGN)
static int
processReal (struct parser_state *par_state, const char *num0)
{
- sscanf (num0, "%" DOUBLEST_SCAN_FORMAT, &yylval.typed_val_float.dval);
-
- yylval.typed_val_float.type = type_float (par_state);
- if (sizeof(DOUBLEST) >= gdbarch_double_bit (parse_gdbarch (par_state))
- / TARGET_CHAR_BIT)
- yylval.typed_val_float.type = type_double (par_state);
- if (sizeof(DOUBLEST) >= gdbarch_long_double_bit (parse_gdbarch (par_state))
- / TARGET_CHAR_BIT)
- yylval.typed_val_float.type = type_long_double (par_state);
+ yylval.typed_val_float.type = type_long_double (par_state);
+ bool parsed = parse_float (num0, strlen (num0),
+ yylval.typed_val_float.type,
+ yylval.typed_val_float.val);
+ gdb_assert (parsed);
return FLOAT;
}
/* Store a canonicalized version of NAME0[0..LEN-1] in yylval.ssym. The
resulting string is valid until the next call to ada_parse. If
NAME0 contains the substring "___", it is assumed to be already
- encoded and the resulting name is equal to it. Otherwise, it differs
+ encoded and the resulting name is equal to it. Similarly, if the name
+ starts with '<', it is copied verbatim. Otherwise, it differs
from NAME0 in that:
- + Characters between '...' or <...> are transfered verbatim to
- yylval.ssym.
- + <, >, and trailing "'" characters in quoted sequences are removed
- (a leading quote is preserved to indicate that the name is not to be
- GNAT-encoded).
+ + Characters between '...' are transfered verbatim to yylval.ssym.
+ + Trailing "'" characters in quoted sequences are removed (a leading quote is
+ preserved to indicate that the name is not to be GNAT-encoded).
+ Unquoted whitespace is removed.
+ Unquoted alphabetic characters are mapped to lower case.
Result is returned as a struct stoken, but for convenience, the string
static struct stoken
processId (const char *name0, int len)
{
- char *name = obstack_alloc (&temp_parse_space, len + 11);
+ char *name = (char *) obstack_alloc (&temp_parse_space, len + 11);
int i0, i;
struct stoken result;
while (len > 0 && isspace (name0[len-1]))
len -= 1;
- if (strstr (name0, "___") != NULL)
+ if (name0[0] == '<' || strstr (name0, "___") != NULL)
{
strncpy (name, name0, len);
name[len] = '\000';
while (i0 < len && name0[i0] != '\'');
i0 += 1;
break;
- case '<':
- i0 += 1;
- while (i0 < len && name0[i0] != '>')
- {
- name[i] = name0[i0];
- i += 1; i0 += 1;
- }
- i0 += 1;
- break;
}
}
name[i] = '\000';
const char *lim = text + len;
struct stoken result;
- q = obstack_alloc (&temp_parse_space, len);
+ q = (char *) obstack_alloc (&temp_parse_space, len);
result.ptr = q;
p = text;
while (p < lim)
static void
rewind_to_char (int ch)
{
- lexptr -= yyleng;
- while (toupper (*lexptr) != toupper (ch))
- lexptr -= 1;
+ pstate->lexptr -= yyleng;
+ while (toupper (*pstate->lexptr) != toupper (ch))
+ pstate->lexptr -= 1;
yyrestart (NULL);
}
-int
-yywrap(void)
-{
- return 1;
-}
-
/* Dummy definition to suppress warnings about unused static definitions. */
typedef void (*dummy_function) ();
dummy_function ada_flex_use[] =
{
(dummy_function) yyunput
};
+
+DIAGNOSTIC_POP
projects / deliverable / binutils-gdb.git / blobdiff