mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-30 13:33:53 +08:00
c269d90a49
Simon pointed out that timestamped_file probably needed to implement a few more methods. This patch introduces a new file-wrapping file that forwards most of its calls, making it simpler to implement new such files. It also converts timestamped_file and pager_file to use it. Regression tested on x86-64 Fedora 34.
92 lines
2.4 KiB
C++
92 lines
2.4 KiB
C++
/* Output pager for gdb
|
|
Copyright (C) 2021, 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 GDB_PAGER_H
|
|
#define GDB_PAGER_H
|
|
|
|
#include "ui-file.h"
|
|
|
|
/* A ui_file that implements output paging and unfiltered output. */
|
|
|
|
class pager_file : public wrapped_file
|
|
{
|
|
public:
|
|
/* Create a new pager_file. The new object takes ownership of
|
|
STREAM. */
|
|
explicit pager_file (ui_file *stream)
|
|
: wrapped_file (stream)
|
|
{
|
|
}
|
|
|
|
~pager_file ()
|
|
{
|
|
delete m_stream;
|
|
}
|
|
|
|
DISABLE_COPY_AND_ASSIGN (pager_file);
|
|
|
|
void write (const char *buf, long length_buf) override;
|
|
|
|
void puts (const char *str) override;
|
|
|
|
void write_async_safe (const char *buf, long length_buf) override
|
|
{
|
|
m_stream->write_async_safe (buf, length_buf);
|
|
}
|
|
|
|
void emit_style_escape (const ui_file_style &style) override;
|
|
void reset_style () override;
|
|
|
|
void flush () override;
|
|
|
|
void wrap_here (int indent) override;
|
|
|
|
void puts_unfiltered (const char *str) override
|
|
{
|
|
flush_wrap_buffer ();
|
|
m_stream->puts_unfiltered (str);
|
|
}
|
|
|
|
private:
|
|
|
|
void prompt_for_continue ();
|
|
|
|
/* Flush the wrap buffer to STREAM, if necessary. */
|
|
void flush_wrap_buffer ();
|
|
|
|
/* Contains characters which are waiting to be output (they have
|
|
already been counted in chars_printed). */
|
|
std::string m_wrap_buffer;
|
|
|
|
/* Amount to indent by if the wrap occurs. */
|
|
int m_wrap_indent = 0;
|
|
|
|
/* Column number on the screen where wrap_buffer begins, or 0 if
|
|
wrapping is not in effect. */
|
|
int m_wrap_column = 0;
|
|
|
|
/* The style applied at the time that wrap_here was called. */
|
|
ui_file_style m_wrap_style;
|
|
|
|
/* This is temporarily set when paging. This will cause some
|
|
methods to change their behavior to ignore the wrap buffer. */
|
|
bool m_paging = false;
|
|
};
|
|
|
|
#endif /* GDB_PAGER_H */
|