mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-27 04:52:05 +08:00
4a94e36819
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
229 lines
7.0 KiB
C++
229 lines
7.0 KiB
C++
/* CLI utilities.
|
|
|
|
Copyright (C) 2011-2022 Free Software Foundation, Inc.
|
|
|
|
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/>. */
|
|
|
|
#ifndef CLI_CLI_UTILS_H
|
|
#define CLI_CLI_UTILS_H
|
|
|
|
#include "completer.h"
|
|
|
|
struct cmd_list_element;
|
|
|
|
/* *PP is a string denoting a number. Get the number. Advance *PP
|
|
after the string and any trailing whitespace.
|
|
|
|
The string can either be a number, or "$" followed by the name of a
|
|
convenience variable, or ("$" or "$$") followed by digits.
|
|
|
|
TRAILER is a character which can be found after the number; most
|
|
commonly this is `-'. If you don't want a trailer, use \0. */
|
|
|
|
extern int get_number_trailer (const char **pp, int trailer);
|
|
|
|
/* Convenience. Like get_number_trailer, but with no TRAILER. */
|
|
|
|
extern int get_number (const char **);
|
|
|
|
/* Like the above, but takes a non-const "char **". */
|
|
|
|
extern int get_number (char **);
|
|
|
|
/* Like get_number_trailer, but works with ULONGEST, and throws on
|
|
error instead of returning 0. */
|
|
extern ULONGEST get_ulongest (const char **pp, int trailer = '\0');
|
|
|
|
/* Throws an error telling the user that ARGS starts with an option
|
|
unrecognized by COMMAND. */
|
|
|
|
extern void report_unrecognized_option_error (const char *command,
|
|
const char *args);
|
|
|
|
|
|
/* Builds the help string for a command documented by PREFIX,
|
|
followed by the extract_info_print_args help for ENTITY_KIND. If
|
|
DOCUMENT_N_FLAG is true then help text describing the -n flag is also
|
|
included. */
|
|
|
|
const char *info_print_args_help (const char *prefix,
|
|
const char *entity_kind,
|
|
bool document_n_flag);
|
|
|
|
/* Parse a number or a range.
|
|
A number will be of the form handled by get_number.
|
|
A range will be of the form <number1> - <number2>, and
|
|
will represent all the integers between number1 and number2,
|
|
inclusive. */
|
|
|
|
class number_or_range_parser
|
|
{
|
|
public:
|
|
/* Default construction. Must call init before calling
|
|
get_next. */
|
|
number_or_range_parser () {}
|
|
|
|
/* Calls init automatically. */
|
|
number_or_range_parser (const char *string);
|
|
|
|
/* STRING is the string to be parsed. */
|
|
void init (const char *string);
|
|
|
|
/* While processing a range, this fuction is called iteratively; At
|
|
each call it will return the next value in the range.
|
|
|
|
At the beginning of parsing a range, the char pointer
|
|
STATE->m_cur_tok will be advanced past <number1> and left
|
|
pointing at the '-' token. Subsequent calls will not advance the
|
|
pointer until the range is completed. The call that completes
|
|
the range will advance the pointer past <number2>. */
|
|
int get_number ();
|
|
|
|
/* Setup internal state such that get_next() returns numbers in the
|
|
START_VALUE to END_VALUE range. END_PTR is where the string is
|
|
advanced to when get_next() returns END_VALUE. */
|
|
void setup_range (int start_value, int end_value,
|
|
const char *end_ptr);
|
|
|
|
/* Returns true if parsing has completed. */
|
|
bool finished () const;
|
|
|
|
/* Return the string being parsed. When parsing has finished, this
|
|
points past the last parsed token. */
|
|
const char *cur_tok () const
|
|
{ return m_cur_tok; }
|
|
|
|
/* True when parsing a range. */
|
|
bool in_range () const
|
|
{ return m_in_range; }
|
|
|
|
/* When parsing a range, the final value in the range. */
|
|
int end_value () const
|
|
{ return m_end_value; }
|
|
|
|
/* When parsing a range, skip past the final token in the range. */
|
|
void skip_range ()
|
|
{
|
|
gdb_assert (m_in_range);
|
|
m_cur_tok = m_end_ptr;
|
|
m_in_range = false;
|
|
}
|
|
|
|
private:
|
|
/* No need for these. They are intentionally not defined anywhere. */
|
|
number_or_range_parser (const number_or_range_parser &);
|
|
number_or_range_parser &operator= (const number_or_range_parser &);
|
|
|
|
/* The string being parsed. When parsing has finished, this points
|
|
past the last parsed token. */
|
|
const char *m_cur_tok;
|
|
|
|
/* Last value returned. */
|
|
int m_last_retval;
|
|
|
|
/* When parsing a range, the final value in the range. */
|
|
int m_end_value;
|
|
|
|
/* When parsing a range, a pointer past the final token in the
|
|
range. */
|
|
const char *m_end_ptr;
|
|
|
|
/* True when parsing a range. */
|
|
bool m_in_range;
|
|
};
|
|
|
|
/* Accept a number and a string-form list of numbers such as is
|
|
accepted by get_number_or_range. Return TRUE if the number is
|
|
in the list.
|
|
|
|
By definition, an empty list includes all numbers. This is to
|
|
be interpreted as typing a command such as "delete break" with
|
|
no arguments. */
|
|
|
|
extern int number_is_in_list (const char *list, int number);
|
|
|
|
/* Reverse S to the last non-whitespace character without skipping past
|
|
START. */
|
|
|
|
extern const char *remove_trailing_whitespace (const char *start,
|
|
const char *s);
|
|
|
|
/* Same, for non-const S. */
|
|
|
|
static inline char *
|
|
remove_trailing_whitespace (const char *start, char *s)
|
|
{
|
|
return (char *) remove_trailing_whitespace (start, (const char *) s);
|
|
}
|
|
|
|
/* A helper function to extract an argument from *ARG. An argument is
|
|
delimited by whitespace. The return value is empty if no argument
|
|
was found. */
|
|
|
|
extern std::string extract_arg (char **arg);
|
|
|
|
/* A const-correct version of the above. */
|
|
|
|
extern std::string extract_arg (const char **arg);
|
|
|
|
/* A helper function that looks for an argument at the start of a
|
|
string. The argument must also either be at the end of the string,
|
|
or be followed by whitespace. Returns 1 if it finds the argument,
|
|
0 otherwise. If the argument is found, it updates *STR to point
|
|
past the argument and past any whitespace following the
|
|
argument. */
|
|
extern int check_for_argument (const char **str, const char *arg, int arg_len);
|
|
|
|
/* Same as above, but ARG's length is computed. */
|
|
|
|
static inline int
|
|
check_for_argument (const char **str, const char *arg)
|
|
{
|
|
return check_for_argument (str, arg, strlen (arg));
|
|
}
|
|
|
|
/* Same, for non-const STR. */
|
|
|
|
static inline int
|
|
check_for_argument (char **str, const char *arg, int arg_len)
|
|
{
|
|
return check_for_argument (const_cast<const char **> (str),
|
|
arg, arg_len);
|
|
}
|
|
|
|
static inline int
|
|
check_for_argument (char **str, const char *arg)
|
|
{
|
|
return check_for_argument (str, arg, strlen (arg));
|
|
}
|
|
|
|
/* qcs_flags struct groups the -q, -c, and -s flags parsed by "thread
|
|
apply" and "frame apply" commands */
|
|
|
|
struct qcs_flags
|
|
{
|
|
bool quiet = false;
|
|
bool cont = false;
|
|
bool silent = false;
|
|
};
|
|
|
|
/* Validate FLAGS. Throws an error if both FLAGS->CONT and
|
|
FLAGS->SILENT are true. WHICH_COMMAND is included in the error
|
|
message. */
|
|
extern void validate_flags_qcs (const char *which_command, qcs_flags *flags);
|
|
|
|
#endif /* CLI_CLI_UTILS_H */
|