/* Definitions for CPP library.
- Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
+ Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+ 2004, 2005
Free Software Foundation, Inc.
Written by Per Bothner, 1994-95.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
-Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
In other words, you are welcome to use, share and improve this program.
You are forbidden to forbid anyone else to use, share and improve
'='. The lexer needs operators ending in '=', like ">>=", to be in
the same order as their counterparts without the '=', like ">>". */
-/* Positions in the table. */
-#define CPP_LAST_EQ CPP_MAX
-#define CPP_FIRST_DIGRAPH CPP_HASH
-#define CPP_LAST_PUNCTUATOR CPP_DOT_STAR
-#define CPP_LAST_CPP_OP CPP_LESS_EQ
-
-#define TTYPE_TABLE \
- OP(CPP_EQ = 0, "=") \
- OP(CPP_NOT, "!") \
- OP(CPP_GREATER, ">") /* compare */ \
- OP(CPP_LESS, "<") \
- OP(CPP_PLUS, "+") /* math */ \
- OP(CPP_MINUS, "-") \
- OP(CPP_MULT, "*") \
- OP(CPP_DIV, "/") \
- OP(CPP_MOD, "%") \
- OP(CPP_AND, "&") /* bit ops */ \
- OP(CPP_OR, "|") \
- OP(CPP_XOR, "^") \
- OP(CPP_RSHIFT, ">>") \
- OP(CPP_LSHIFT, "<<") \
- OP(CPP_MIN, "<?") /* extension */ \
- OP(CPP_MAX, ">?") \
-\
- OP(CPP_COMPL, "~") \
- OP(CPP_AND_AND, "&&") /* logical */ \
- OP(CPP_OR_OR, "||") \
- OP(CPP_QUERY, "?") \
- OP(CPP_COLON, ":") \
- OP(CPP_COMMA, ",") /* grouping */ \
- OP(CPP_OPEN_PAREN, "(") \
- OP(CPP_CLOSE_PAREN, ")") \
- TK(CPP_EOF, SPELL_NONE) \
- OP(CPP_EQ_EQ, "==") /* compare */ \
- OP(CPP_NOT_EQ, "!=") \
- OP(CPP_GREATER_EQ, ">=") \
- OP(CPP_LESS_EQ, "<=") \
-\
- /* These two are unary + / - in preprocessor expressions. */ \
- OP(CPP_PLUS_EQ, "+=") /* math */ \
- OP(CPP_MINUS_EQ, "-=") \
-\
- OP(CPP_MULT_EQ, "*=") \
- OP(CPP_DIV_EQ, "/=") \
- OP(CPP_MOD_EQ, "%=") \
- OP(CPP_AND_EQ, "&=") /* bit ops */ \
- OP(CPP_OR_EQ, "|=") \
- OP(CPP_XOR_EQ, "^=") \
- OP(CPP_RSHIFT_EQ, ">>=") \
- OP(CPP_LSHIFT_EQ, "<<=") \
- OP(CPP_MIN_EQ, "<?=") /* extension */ \
- OP(CPP_MAX_EQ, ">?=") \
- /* Digraphs together, beginning with CPP_FIRST_DIGRAPH. */ \
- OP(CPP_HASH, "#") /* digraphs */ \
- OP(CPP_PASTE, "##") \
- OP(CPP_OPEN_SQUARE, "[") \
- OP(CPP_CLOSE_SQUARE, "]") \
- OP(CPP_OPEN_BRACE, "{") \
- OP(CPP_CLOSE_BRACE, "}") \
- /* The remainder of the punctuation. Order is not significant. */ \
- OP(CPP_SEMICOLON, ";") /* structure */ \
- OP(CPP_ELLIPSIS, "...") \
- OP(CPP_PLUS_PLUS, "++") /* increment */ \
- OP(CPP_MINUS_MINUS, "--") \
- OP(CPP_DEREF, "->") /* accessors */ \
- OP(CPP_DOT, ".") \
- OP(CPP_SCOPE, "::") \
- OP(CPP_DEREF_STAR, "->*") \
- OP(CPP_DOT_STAR, ".*") \
- OP(CPP_ATSIGN, "@") /* used in Objective-C */ \
-\
- TK(CPP_NAME, SPELL_IDENT) /* word */ \
- TK(CPP_AT_NAME, SPELL_IDENT) /* @word - Objective-C */ \
- TK(CPP_NUMBER, SPELL_LITERAL) /* 34_be+ta */ \
-\
- TK(CPP_CHAR, SPELL_LITERAL) /* 'char' */ \
- TK(CPP_WCHAR, SPELL_LITERAL) /* L'char' */ \
- TK(CPP_OTHER, SPELL_LITERAL) /* stray punctuation */ \
-\
- TK(CPP_STRING, SPELL_LITERAL) /* "string" */ \
- TK(CPP_WSTRING, SPELL_LITERAL) /* L"string" */ \
- TK(CPP_OBJC_STRING, SPELL_LITERAL) /* @"string" - Objective-C */ \
- TK(CPP_HEADER_NAME, SPELL_LITERAL) /* <stdio.h> in #include */ \
-\
- TK(CPP_COMMENT, SPELL_LITERAL) /* Only if output comments. */ \
- /* SPELL_LITERAL happens to DTRT. */ \
- TK(CPP_MACRO_ARG, SPELL_NONE) /* Macro argument. */ \
- TK(CPP_PADDING, SPELL_NONE) /* Whitespace for cpp0. */
-
-#define OP(e, s) e,
-#define TK(e, s) e,
+#define TTYPE_TABLE \
+ OP(EQ, "=") \
+ OP(NOT, "!") \
+ OP(GREATER, ">") /* compare */ \
+ OP(LESS, "<") \
+ OP(PLUS, "+") /* math */ \
+ OP(MINUS, "-") \
+ OP(MULT, "*") \
+ OP(DIV, "/") \
+ OP(MOD, "%") \
+ OP(AND, "&") /* bit ops */ \
+ OP(OR, "|") \
+ OP(XOR, "^") \
+ OP(RSHIFT, ">>") \
+ OP(LSHIFT, "<<") \
+ OP(MIN, "<?") /* extension */ \
+ OP(MAX, ">?") \
+ \
+ OP(COMPL, "~") \
+ OP(AND_AND, "&&") /* logical */ \
+ OP(OR_OR, "||") \
+ OP(QUERY, "?") \
+ OP(COLON, ":") \
+ OP(COMMA, ",") /* grouping */ \
+ OP(OPEN_PAREN, "(") \
+ OP(CLOSE_PAREN, ")") \
+ TK(EOF, NONE) \
+ OP(EQ_EQ, "==") /* compare */ \
+ OP(NOT_EQ, "!=") \
+ OP(GREATER_EQ, ">=") \
+ OP(LESS_EQ, "<=") \
+ \
+ /* These two are unary + / - in preprocessor expressions. */ \
+ OP(PLUS_EQ, "+=") /* math */ \
+ OP(MINUS_EQ, "-=") \
+ \
+ OP(MULT_EQ, "*=") \
+ OP(DIV_EQ, "/=") \
+ OP(MOD_EQ, "%=") \
+ OP(AND_EQ, "&=") /* bit ops */ \
+ OP(OR_EQ, "|=") \
+ OP(XOR_EQ, "^=") \
+ OP(RSHIFT_EQ, ">>=") \
+ OP(LSHIFT_EQ, "<<=") \
+ OP(MIN_EQ, "<?=") /* extension */ \
+ OP(MAX_EQ, ">?=") \
+ /* Digraphs together, beginning with CPP_FIRST_DIGRAPH. */ \
+ OP(HASH, "#") /* digraphs */ \
+ OP(PASTE, "##") \
+ OP(OPEN_SQUARE, "[") \
+ OP(CLOSE_SQUARE, "]") \
+ OP(OPEN_BRACE, "{") \
+ OP(CLOSE_BRACE, "}") \
+ /* The remainder of the punctuation. Order is not significant. */ \
+ OP(SEMICOLON, ";") /* structure */ \
+ OP(ELLIPSIS, "...") \
+ OP(PLUS_PLUS, "++") /* increment */ \
+ OP(MINUS_MINUS, "--") \
+ OP(DEREF, "->") /* accessors */ \
+ OP(DOT, ".") \
+ OP(SCOPE, "::") \
+ OP(DEREF_STAR, "->*") \
+ OP(DOT_STAR, ".*") \
+ OP(ATSIGN, "@") /* used in Objective-C */ \
+ \
+ TK(NAME, IDENT) /* word */ \
+ TK(AT_NAME, IDENT) /* @word - Objective-C */ \
+ TK(NUMBER, LITERAL) /* 34_be+ta */ \
+ \
+ TK(CHAR, LITERAL) /* 'char' */ \
+ TK(WCHAR, LITERAL) /* L'char' */ \
+ TK(OTHER, LITERAL) /* stray punctuation */ \
+ \
+ TK(STRING, LITERAL) /* "string" */ \
+ TK(WSTRING, LITERAL) /* L"string" */ \
+ TK(OBJC_STRING, LITERAL) /* @"string" - Objective-C */ \
+ TK(HEADER_NAME, LITERAL) /* <stdio.h> in #include */ \
+ \
+ TK(COMMENT, LITERAL) /* Only if output comments. */ \
+ /* SPELL_LITERAL happens to DTRT. */ \
+ TK(MACRO_ARG, NONE) /* Macro argument. */ \
+ TK(PRAGMA, NONE) /* Only if deferring pragmas */ \
+ TK(PADDING, NONE) /* Whitespace for -E. */
+
+#define OP(e, s) CPP_ ## e,
+#define TK(e, s) CPP_ ## e,
enum cpp_ttype
{
TTYPE_TABLE
- N_TTYPES
+ N_TTYPES,
+
+ /* Positions in the table. */
+ CPP_LAST_EQ = CPP_MAX,
+ CPP_FIRST_DIGRAPH = CPP_HASH,
+ CPP_LAST_PUNCTUATOR= CPP_DOT_STAR,
+ CPP_LAST_CPP_OP = CPP_LESS_EQ
};
#undef OP
#undef TK
-/* C language kind, used when calling cpp_reader_init. */
+/* C language kind, used when calling cpp_create_reader. */
enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_STDC89, CLK_STDC94, CLK_STDC99,
CLK_GNUCXX, CLK_CXX98, CLK_ASM};
typedef unsigned CPPCHAR_SIGNED_T cppchar_t;
typedef CPPCHAR_SIGNED_T cppchar_signed_t;
+/* Style of header dependencies to generate. */
+enum cpp_deps_style { DEPS_NONE = 0, DEPS_USER, DEPS_SYSTEM };
+
+/* The possible normalization levels, from most restrictive to least. */
+enum cpp_normalize_level {
+ /* In NFKC. */
+ normalized_KC = 0,
+ /* In NFC. */
+ normalized_C,
+ /* In NFC, except for subsequences where being in NFC would make
+ the identifier invalid. */
+ normalized_identifier_C,
+ /* Not normalized at all. */
+ normalized_none
+};
+
/* This structure is nested inside struct cpp_reader, and
carries all the options visible to the command line. */
struct cpp_options
/* Zero means dollar signs are punctuation. */
unsigned char dollars_in_ident;
+ /* Nonzero means UCNs are accepted in identifiers. */
+ unsigned char extended_identifiers;
+
/* True if we should warn about dollars in identifiers or numbers
for this translation unit. */
unsigned char warn_dollars;
/* Holds the name of the input character set. */
const char *input_charset;
+ /* The minimum permitted level of normalization before a warning
+ is generated. */
+ enum cpp_normalize_level warn_normalize;
+
/* True to warn about precompiled header files we couldn't use. */
bool warn_invalid_pch;
struct
{
/* Style of header dependencies to generate. */
- enum {DEPS_NONE = 0, DEPS_USER, DEPS_SYSTEM } style;
+ enum cpp_deps_style style;
/* Assume missing files are generated files. */
bool missing_files;
/* Nonzero means __STDC__ should have the value 0 in system headers. */
unsigned char stdc_0_in_system_headers;
+
+ /* True means return pragmas as tokens rather than processing
+ them directly. */
+ bool defer_pragmas;
+
+ /* True means error callback should be used for diagnostics. */
+ bool client_diagnostic;
};
/* Callback for header lookup for HEADER, which is the name of a
void (*dir_change) (cpp_reader *, const char *);
void (*include) (cpp_reader *, unsigned int, const unsigned char *,
- const char *, int);
+ const char *, int, const cpp_token **);
void (*define) (cpp_reader *, unsigned int, cpp_hashnode *);
void (*undef) (cpp_reader *, unsigned int, cpp_hashnode *);
void (*ident) (cpp_reader *, unsigned int, const cpp_string *);
int (*valid_pch) (cpp_reader *, const char *, int);
void (*read_pch) (cpp_reader *, const char *, int, const char *);
missing_header_cb missing_header;
+
+ /* Called to emit a diagnostic if client_diagnostic option is true.
+ This callback receives the translated message. */
+ void (*error) (cpp_reader *, int, const char *, va_list *)
+ ATTRIBUTE_PRINTF(3,0);
};
/* Chain of directories to look for include files in. */
/* The common part of an identifier node shared amongst all 3 C front
ends. Also used to store CPP identifiers, which are a superset of
identifiers in the grammatical sense. */
+
+union _cpp_hashnode_value GTY(())
+{
+ /* If a macro. */
+ cpp_macro * GTY((tag ("NTV_MACRO"))) macro;
+ /* Answers to an assertion. */
+ struct answer * GTY ((tag ("NTV_ANSWER"))) answers;
+ /* Code for a builtin macro. */
+ enum builtin_type GTY ((tag ("NTV_BUILTIN"))) builtin;
+ /* Macro argument index. */
+ unsigned short GTY ((tag ("NTV_ARGUMENT"))) arg_index;
+};
+
struct cpp_hashnode GTY(())
{
struct ht_identifier ident;
ENUM_BITFIELD(node_type) type : 8; /* CPP node type. */
unsigned char flags; /* CPP flags. */
- union _cpp_hashnode_value
- {
- /* If a macro. */
- cpp_macro * GTY((tag ("NTV_MACRO"))) macro;
- /* Answers to an assertion. */
- struct answer * GTY ((tag ("NTV_ANSWER"))) answers;
- /* Code for a builtin macro. */
- enum builtin_type GTY ((tag ("NTV_BUILTIN"))) builtin;
- /* Macro argument index. */
- unsigned short GTY ((tag ("NTV_ARGUMENT"))) arg_index;
- } GTY ((desc ("CPP_HASHNODE_VALUE_IDX (%1)"))) value;
+ union _cpp_hashnode_value GTY ((desc ("CPP_HASHNODE_VALUE_IDX (%1)"))) value;
};
/* Call this first to get a handle to pass to other functions.
extern unsigned int cpp_token_len (const cpp_token *);
extern unsigned char *cpp_token_as_text (cpp_reader *, const cpp_token *);
extern unsigned char *cpp_spell_token (cpp_reader *, const cpp_token *,
- unsigned char *);
+ unsigned char *, bool);
extern void cpp_register_pragma (cpp_reader *, const char *, const char *,
- void (*) (cpp_reader *));
+ void (*) (cpp_reader *), bool);
+extern void cpp_handle_deferred_pragma (cpp_reader *, const cpp_string *);
extern int cpp_avoid_paste (cpp_reader *, const cpp_token *,
const cpp_token *);
extern const cpp_token *cpp_get_token (cpp_reader *);
const cpp_string *, size_t,
cpp_string *, bool);
+/* Convert a host character constant to the execution character set. */
+extern cppchar_t cpp_host_to_exec_charset (cpp_reader *, cppchar_t);
+
/* Used to register macros and assertions, perhaps from the command line.
The text is the same as the command line argument. */
extern void cpp_define (cpp_reader *, const char *);
#define CPP_DL_WARNING_P(l) (CPP_DL_EXTRACT (l) >= CPP_DL_WARNING \
&& CPP_DL_EXTRACT (l) <= CPP_DL_PEDWARN)
-/* N.B. The error-message-printer prototypes have not been nicely
- formatted because exgettext needs to see 'msgid' on the same line
- as the name of the function in order to work properly. Only the
- string argument gets a name in an effort to keep the lines from
- getting ridiculously oversized. */
-
/* Output a diagnostic of some kind. */
extern void cpp_error (cpp_reader *, int, const char *msgid, ...)
ATTRIBUTE_PRINTF_3;
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