old-cross-binutils/gdb/parser-defs.h
Tom Tromey 6c7a06a3fa gdb:
2009-03-19  Tom Tromey  <tromey@redhat.com>
	    Julian Brown  <julian@codesourcery.com>

	PR i18n/7220, PR i18n/7821, PR exp/8815, PR exp/9103,
	PR i18n/9401, PR exp/9613:
	* NEWS: Update
	* value.h (value_typed_string): Declare.
	(val_print_string): Update.
	* valprint.h (print_char_chars): Update.
	* valprint.c (print_char_chars): Add type argument.  Update.
	(val_print_string): Likewise.
	* valops.c (value_typed_string): New function.
	* utils.c (host_char_to_target): New function.
	(parse_escape): Use host_char_to_target, host_hex_value.  Update.
	Remove '^' case.
	(no_control_char_error): Remove.
	* typeprint.c (print_type_scalar): Update.
	* scm-valprint.c (scm_scmval_print): Update.
	* scm-lang.h (scm_printchar, scm_printstr): Update.
	* scm-lang.c (scm_printchar): Add type argument.
	(scm_printstr): Likewise.
	* printcmd.c (print_formatted): Update.
	(print_scalar_formatted): Update.
	(printf_command) <wide_string_arg, wide_char_arg>: New constants.
	Handle '%lc' and '%ls'.
	* parser-defs.h (struct typed_stoken): New type.
	(struct stoken_vector): Likewise.
	(write_exp_string_vector): Declare.
	* parse.c (write_exp_string_vector): New function.
	* p-valprint.c (pascal_val_print): Update.
	* p-lang.h (is_pascal_string_type, pascal_printchar,
	pascal_printstr): Update.
	* p-lang.c (is_pascal_string_type): Remove 'char_size' argument.
	Add 'char_type' argument.
	(pascal_emit_char): Add type argument.
	(pascal_printchar): Likewise.
	(pascal_printstr): Likewise.
	* objc-lang.c (objc_emit_char): Add type argument.
	(objc_printchar): Likewise.
	(objc_printstr): Likewise.
	* macroexp.c (get_character_constant): Handle unicode characters.
	Use c_parse_escape.
	(get_string_literal): Handle unicode strings.  Use
	c_parse_escape.
	* m2-valprint.c (print_unpacked_pointer): Update.
	(m2_print_array_contents): Update.
	(m2_val_print): Update.
	* m2-lang.c (m2_emit_char): Add type argument.
	(m2_printchar): Likewise.
	(m2_printstr): Likewise.
	* language.h (struct language_defn) <la_printchar>: Add type
	argument.
	<la_printstr, la_emitchar>: Likewise.
	(LA_PRINT_CHAR): Likewise.
	(LA_PRINT_STRING): Likewise.
	(LA_EMIT_CHAR): Likewise.
	* language.c (unk_lang_emit_char): Add type argument.
	(unk_lang_printchar): Likewise.
	(unk_lang_printstr): Likewise.
	* jv-valprint.c (java_val_print): Update.
	* jv-lang.c (java_emit_char): Add type argument.
	* f-valprint.c (f_val_print): Update.
	* f-lang.c (f_emit_char): Add type argument.
	(f_printchar): Likewise.
	(f_printstr): Likewise.
	* expprint.c (print_subexp_standard): Update.
	* charset.h (target_wide_charset): Declare.
	(c_target_char_has_backslash_escape, c_parse_backslash,
	host_char_print_literally, host_char_to_target,
	target_char_to_host, target_char_to_control_char): Remove.
	(enum transliterations): New type.
	(convert_between_encodings): Declare.
	(HOST_ESCAPE_CHAR): New define.
	(host_letter_to_control_character, host_hex_value): Declare.
	(enum wchar_iterate_result): New enum.
	(struct wchar_iterator): Declare.
	(make_wchar_iterator, make_cleanup_wchar_iterator, wchar_iterator,
	wchar_push_back): Declare.
	* charset-list.h: New file.
	* c-valprint.c (textual_name): New function.
	(textual_element_type): Handle wide character types.
	(c_val_print): Pass original type to textual_element_type.  Handle
	wide character types.
	(c_value_print): Use textual_element_type.  Pass original type of
	value to val_print.
	* c-lang.h (enum c_string_type): New type.
	(c_printchar, c_printstr): Update.
	* c-lang.c (classify_type): New function.
	(print_wchar): Likewise.
	(c_emit_char): Add type argument.  Handle wide characters.
	(c_printchar): Likewise.
	(c_printstr): Add type argument.  Handle wide and multibyte
	character sets.
	(convert_ucn): New function.
	(emit_numeric_character): Likewise.
	(convert_octal): Likewise.
	(convert_hex): Likewise.
	(ADVANCE): New macro.
	(convert_escape): New function.
	(parse_one_string): Likewise.
	(evaluate_subexp_c): Likewise.
	(exp_descriptor_c): New global.
	(c_language_defn): Use exp_descriptor_c.
	(cplus_language_defn): Likewise.
	(asm_language_defn): Likewise.
	(minimal_language_defn): Likewise.
	(charset_for_string_type): New function.
	* c-exp.y (%union): Add 'svec' and 'tsval'.
	(CHAR): New token.
	(exp): Add CHAR production.
	(string_exp): Rewrite.
	(exp) <string_exp>: Rewrite.
	(tempbuf): Now global.
	(tempbuf_init): New global.
	(parse_string_or_char): New function.
	(yylex) <tempbuf>: Now global.
	<tokptr, tempbufindex, tempbufsize, token_string, class_prefix>:
	Remove.
	Handle 'u', 'U', and 'L' prefixes.  Call parse_string_or_char.
	(c_parse_escape): New function.
	* auxv.c (fprint_target_auxv): Update.
	* ada-valprint.c (ada_emit_char): Add type argument.
	(ada_printchar): Likewise.
	(ada_print_scalar): Update.
	(printstr): Add type argument.  Update calls to ada_emit_char.
	(ada_printstr): Add type argument.
	(ada_val_print_array): Update.
	(ada_val_print_1): Likewise.
	* ada-lang.c (emit_char): Add type argument.
	* ada-lang.h (ada_emit_char, ada_printchar, ada_printstr): Add
	type arguments.
	* gdb_locale.h: Include langinfo.h.
	* charset.c (_initialize_charset): Set default host charset from
	the locale.  Don't register charsets.  Add target-wide-charset
	commands.  Call find_charset_names.
	(struct charset, struct translation): Remove.
	(GDB_DEFAULT_HOST_CHARSET): Remove.
	(GDB_DEFAULT_TARGET_WIDE_CHARSET): New define.
	(target_wide_charset_name): New global.
	(show_host_charset_name): Handle "auto".
	(show_target_wide_charset_name): New function.
	(host_charset_enum, target_charset_enum): Remove.
	(charset_enum): New global.
	(all_charsets, register_charset, lookup_charset, all_translations,
	register_translation, lookup_translation): Remove.
	(simple_charset, ascii_print_literally, ascii_to_control): Remove.
	(iso_8859_print_literally, iso_8859_to_control,
	iso_8859_family_charset): Remove.
	(ebcdic_print_literally, ebcdic_to_control,
	ebcdic_family_charset): Remove.
	(struct cached_iconv, check_iconv_cache, cached_iconv_convert,
	register_iconv_charsets): Remove.
	(target_wide_charset_be_name, target_wide_charset_le_name): New
	globals.
	(identity_either_char_to_other): Remove.
	(set_be_le_names, validate): New functions.
	(backslashable, backslashed, represented): Remove.
	(default_c_target_char_has_backslash_escape): Remove.
	(default_c_parse_backslash, iconv_convert): Remove.
	(ascii_to_iso_8859_1_table, ascii_to_ebcdic_us_table,
	ascii_to_ibm1047_table, iso_8859_1_to_ascii_table,
	iso_8859_1_to_ebcdic_us_table, iso_8859_1_to_ibm1047_table,
	ebcdic_us_to_ascii_table, ebcdic_us_to_iso_8859_1_table,
	ebcdic_us_to_ibm1047_table, ibm1047_to_ascii_table,
	ibm1047_to_iso_8859_1_table, ibm1047_to_ebcdic_us_table): Remove.
	(table_convert_char, table_translation, simple_table_translation):
	Remove.
	(current_host_charset, current_target_charset,
	c_target_char_has_backslash_escape_func,
	c_target_char_has_backslash_escape_baton): Remove.
	(c_parse_backslash_func, c_parse_backslash_baton): Remove.
	(host_char_to_target_func, host_char_to_target_baton): Remove.
	(target_char_to_host_func, target_char_to_host_baton): Remove.
	(cached_iconv_host_to_target, cached_iconv_target_to_host):
	Remove.
	(lookup_charset_or_error, check_valid_host_charset): Remove.
	(set_host_and_target_charsets): Remove.
	(set_host_charset, set_target_charset): Remove.
	(set_host_charset_sfunc, set_target_charset_sfunc): Rewrite.
	(set_target_wide_charset_sfunc): New function.
	(show_charset): Print target wide character set.
	(host_charset, target_charset): Rewrite.
	(target_wide_charset): New function.
	(c_target_char_has_backslash_escape): Remove.
	(c_parse_backslash): Remove.
	(host_letter_to_control_character): New function.
	(host_char_print_literally): Remove.
	(host_hex_value): New function.
	(target_char_to_control_char): Remove.
	(cleanup_iconv): New function.
	(convert_between_encodings): New function.
	(target_char_to_host): Remove.
	(struct wchar_iterator): Define.
	(make_wchar_iterator, make_cleanup_wchar_iterator, wchar_iterator,
	wchar_push_back): New functions.
	(do_cleanup_iterator): New function.
	(char_ptr): New typedef.
	(charsets): New global.
	(add_one, find_charset_names): New functions.
	(default_charset_names): New global.
	(auto_host_charset_name): Likewise.
	* aclocal.m4, config.in, configure: Rebuild.
	* configure.ac: Call AM_LANGINFO_CODESET.
	(GDB_DEFAULT_HOST_CHARSET): Default to UTF-8.
	(AM_ICONV): Invoke earlier.
	* acinclude.m4: Include codeset.m4.  Subst LIBICONV_INCLUDE and
	LIBICONV_LIBDIR.  Check for libiconv in build tree.
	* Makefile.in (LIBICONV_LIBDIR, LIBICONV_INCLUDE): New macros.
	(INTERNAL_CFLAGS_BASE): Add LIBICONV_INCLUDE.
	(INTERNAL_LDFLAGS): Add LIBICONV_LIBDIR.
	* gdb_obstack.h (obstack_grow_wstr): New define.
        * gdb_wchar.h: New file.
        * defs.h: Include it.
gdb/testsuite:
	* gdb.base/store.exp: Update for change to escape output.
	* gdb.base/callfuncs.exp (fetch_all_registers): Update for change
	to escape output.
	* gdb.base/pointers.exp: Update for change to escape output.
	* gdb.base/long_long.exp (gdb_test_long_long): Update for change
	to escape output.
	* gdb.base/constvars.exp (do_constvar_tests): Update for change to
	escape output.
	* gdb.base/call-rt-st.exp (print_struct_call): Update for change
	to escape output.
	* gdb.cp/ref-types.exp (gdb_start_again): Update for change to
	escape output.
	* gdb.base/setvar.exp: Update for change to escape output.
	* lib/gdb.exp (default_gdb_start): Set LC_CTYPE to C.
	* gdb.base/printcmds.exp (test_print_all_chars): Update for change
	to escape output.
	(test_print_string_constants): Likewise.
	* gdb.base/charset.exp (valid_host_charset): Check size of
	wchar_t.  Handle UCS-2 and UCS-4.  Add tests for wide and unicode
	cases.  Handle "auto"-related output.
	* gdb.base/charset.c (char16_t, char32_t): New typedefs.
	(uvar, Uvar): New globals.
gdb/doc:
	* gdb.texinfo (Character Sets): Remove obsolete text.  Document
	set target-wide-charset.
	(Requirements): Mention iconv.
2009-03-20 23:04:40 +00:00

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/* Parser definitions for GDB.
Copyright (C) 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
1998, 1999, 2000, 2002, 2007, 2008, 2009 Free Software Foundation, Inc.
Modified from expread.y by the Department of Computer Science at the
State University of New York at Buffalo.
This file is part of GDB.
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
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#if !defined (PARSER_DEFS_H)
#define PARSER_DEFS_H 1
#include "doublest.h"
struct block;
extern struct expression *expout;
extern int expout_size;
extern int expout_ptr;
#define parse_gdbarch (expout->gdbarch)
#define parse_language (expout->language_defn)
/* If this is nonzero, this block is used as the lexical context
for symbol names. */
extern struct block *expression_context_block;
/* If expression_context_block is non-zero, then this is the PC within
the block that we want to evaluate expressions at. When debugging
C or C++ code, we use this to find the exact line we're at, and
then look up the macro definitions active at that point. */
extern CORE_ADDR expression_context_pc;
/* The innermost context required by the stack and register variables
we've encountered so far. */
extern struct block *innermost_block;
/* The block in which the most recently discovered symbol was found.
FIXME: Should be declared along with lookup_symbol in symtab.h; is not
related specifically to parsing. */
extern struct block *block_found;
/* Number of arguments seen so far in innermost function call. */
extern int arglist_len;
/* A string token, either a char-string or bit-string. Char-strings are
used, for example, for the names of symbols. */
struct stoken
{
/* Pointer to first byte of char-string or first bit of bit-string */
char *ptr;
/* Length of string in bytes for char-string or bits for bit-string */
int length;
};
struct typed_stoken
{
/* A language-specific type field. */
int type;
/* Pointer to first byte of char-string or first bit of bit-string */
char *ptr;
/* Length of string in bytes for char-string or bits for bit-string */
int length;
};
struct stoken_vector
{
int len;
struct typed_stoken *tokens;
};
struct ttype
{
struct stoken stoken;
struct type *type;
};
struct symtoken
{
struct stoken stoken;
struct symbol *sym;
int is_a_field_of_this;
};
struct objc_class_str
{
struct stoken stoken;
struct type *type;
int class;
};
/* For parsing of complicated types.
An array should be preceded in the list by the size of the array. */
enum type_pieces
{
tp_end = -1,
tp_pointer,
tp_reference,
tp_array,
tp_function,
tp_const,
tp_volatile,
tp_space_identifier
};
/* The stack can contain either an enum type_pieces or an int. */
union type_stack_elt
{
enum type_pieces piece;
int int_val;
};
extern union type_stack_elt *type_stack;
extern int type_stack_depth, type_stack_size;
extern void write_exp_elt (union exp_element);
extern void write_exp_elt_opcode (enum exp_opcode);
extern void write_exp_elt_sym (struct symbol *);
extern void write_exp_elt_longcst (LONGEST);
extern void write_exp_elt_dblcst (DOUBLEST);
extern void write_exp_elt_decfloatcst (gdb_byte *);
extern void write_exp_elt_type (struct type *);
extern void write_exp_elt_intern (struct internalvar *);
extern void write_exp_string (struct stoken);
void write_exp_string_vector (int type, struct stoken_vector *vec);
extern void write_exp_bitstring (struct stoken);
extern void write_exp_elt_block (struct block *);
extern void write_exp_elt_objfile (struct objfile *objfile);
extern void write_exp_msymbol (struct minimal_symbol *);
extern void write_dollar_variable (struct stoken str);
extern void mark_struct_expression (void);
extern char *find_template_name_end (char *);
extern void start_arglist (void);
extern int end_arglist (void);
extern char *copy_name (struct stoken);
extern void push_type (enum type_pieces);
extern void push_type_int (int);
extern void push_type_address_space (char *);
extern enum type_pieces pop_type (void);
extern int pop_type_int (void);
extern int length_of_subexp (struct expression *, int);
extern int dump_subexp (struct expression *, struct ui_file *, int);
extern int dump_subexp_body_standard (struct expression *,
struct ui_file *, int);
extern void operator_length (struct expression *, int, int *, int *);
extern void operator_length_standard (struct expression *, int, int *, int *);
extern char *op_name_standard (enum exp_opcode);
extern struct type *follow_types (struct type *);
extern void null_post_parser (struct expression **, int);
/* During parsing of a C expression, the pointer to the next character
is in this variable. */
extern char *lexptr;
/* After a token has been recognized, this variable points to it.
Currently used only for error reporting. */
extern char *prev_lexptr;
/* Tokens that refer to names do so with explicit pointer and length,
so they can share the storage that lexptr is parsing.
When it is necessary to pass a name to a function that expects
a null-terminated string, the substring is copied out
into a block of storage that namecopy points to.
namecopy is allocated once, guaranteed big enough, for each parsing. */
extern char *namecopy;
/* Current depth in parentheses within the expression. */
extern int paren_depth;
/* Nonzero means stop parsing on first comma (if not within parentheses). */
extern int comma_terminates;
/* These codes indicate operator precedences for expression printing,
least tightly binding first. */
/* Adding 1 to a precedence value is done for binary operators,
on the operand which is more tightly bound, so that operators
of equal precedence within that operand will get parentheses. */
/* PREC_HYPER and PREC_ABOVE_COMMA are not the precedence of any operator;
they are used as the "surrounding precedence" to force
various kinds of things to be parenthesized. */
enum precedence
{
PREC_NULL, PREC_COMMA, PREC_ABOVE_COMMA, PREC_ASSIGN, PREC_LOGICAL_OR,
PREC_LOGICAL_AND, PREC_BITWISE_IOR, PREC_BITWISE_AND, PREC_BITWISE_XOR,
PREC_EQUAL, PREC_ORDER, PREC_SHIFT, PREC_ADD, PREC_MUL, PREC_REPEAT,
PREC_HYPER, PREC_PREFIX, PREC_SUFFIX, PREC_BUILTIN_FUNCTION
};
/* Table mapping opcodes into strings for printing operators
and precedences of the operators. */
struct op_print
{
char *string;
enum exp_opcode opcode;
/* Precedence of operator. These values are used only by comparisons. */
enum precedence precedence;
/* For a binary operator: 1 iff right associate.
For a unary operator: 1 iff postfix. */
int right_assoc;
};
/* Information needed to print, prefixify, and evaluate expressions for
a given language. */
struct exp_descriptor
{
/* Print subexpression. */
void (*print_subexp) (struct expression *, int *, struct ui_file *,
enum precedence);
/* Returns number of exp_elements needed to represent an operator and
the number of subexpressions it takes. */
void (*operator_length) (struct expression*, int, int*, int *);
/* Name of this operator for dumping purposes. */
char *(*op_name) (enum exp_opcode);
/* Dump the rest of this (prefix) expression after the operator
itself has been printed. See dump_subexp_body_standard in
(expprint.c). */
int (*dump_subexp_body) (struct expression *, struct ui_file *, int);
/* Evaluate an expression. */
struct value *(*evaluate_exp) (struct type *, struct expression *,
int *, enum noside);
};
/* Default descriptor containing standard definitions of all
elements. */
extern const struct exp_descriptor exp_descriptor_standard;
/* Functions used by language-specific extended operators to (recursively)
print/dump subexpressions. */
extern void print_subexp (struct expression *, int *, struct ui_file *,
enum precedence);
extern void print_subexp_standard (struct expression *, int *,
struct ui_file *, enum precedence);
/* Function used to avoid direct calls to fprintf
in the code generated by the bison parser. */
extern void parser_fprintf (FILE *, const char *, ...) ATTR_FORMAT (printf, 2 ,3);
#endif /* PARSER_DEFS_H */