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//===-- Editline.h ----------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_Editline_h_
#define liblldb_Editline_h_
#if defined(__cplusplus)
#include "lldb/lldb-private.h"
#include <stdio.h>
#ifdef _WIN32
#include "lldb/Host/windows/editlinewin.h"
#else
#include <histedit.h>
#endif
#include <string>
#include <vector>
#include "lldb/Host/Condition.h"
#include "lldb/Host/FileSpec.h"
#include "lldb/Host/Mutex.h"
namespace lldb_private {
//----------------------------------------------------------------------
/// @class Editline Editline.h "lldb/Host/Editline.h"
/// @brief A class that encapsulates editline functionality.
//----------------------------------------------------------------------
class Editline
{
public:
typedef LineStatus (*LineCompletedCallbackType) (
Editline *editline,
StringList &lines,
uint32_t line_idx,
Error &error,
void *baton);
typedef int (*CompleteCallbackType) (
const char *current_line,
const char *cursor,
const char *last_char,
int skip_first_n_matches,
int max_matches,
StringList &matches,
void *baton);
typedef int (*GetCharCallbackType) (
::EditLine *,
char *c);
Editline(const char *prog, // Used for the history file and for editrc program name
const char *prompt,
FILE *fin,
FILE *fout,
FILE *ferr);
~Editline();
Error
GetLine (std::string &line);
Error
GetLines (const std::string &end_line, StringList &lines);
bool
LoadHistory ();
bool
SaveHistory ();
FILE *
GetInputFile ();
FILE *
GetOutputFile ();
FILE *
GetErrorFile ();
bool
GettingLine () const
{
return m_getting_line;
}
void
Hide ();
void
Refresh();
void
Interrupt ();
void
SetAutoCompleteCallback (CompleteCallbackType callback,
void *baton)
{
m_completion_callback = callback;
m_completion_callback_baton = baton;
}
void
SetLineCompleteCallback (LineCompletedCallbackType callback,
void *baton)
{
m_line_complete_callback = callback;
m_line_complete_callback_baton = baton;
}
size_t
Push (const char *bytes, size_t len);
// Cache bytes and use them for input without using a FILE. Calling this function
// will set the getc callback in the editline
size_t
SetInputBuffer (const char *c, size_t len);
static int
GetCharFromInputFileCallback (::EditLine *e, char *c);
void
SetGetCharCallback (GetCharCallbackType callback);
const char *
GetPrompt();
void
SetPrompt (const char *p);
private:
Error
PrivateGetLine(std::string &line);
FileSpec
GetHistoryFile();
unsigned char
HandleCompletion (int ch);
int
GetChar (char *c);
static unsigned char
CallbackEditPrevLine (::EditLine *e, int ch);
static unsigned char
CallbackEditNextLine (::EditLine *e, int ch);
static unsigned char
CallbackComplete (::EditLine *e, int ch);
static const char *
GetPromptCallback (::EditLine *e);
static Editline *
GetClientData (::EditLine *e);
static FILE *
GetFilePointer (::EditLine *e, int fd);
static int
GetCharInputBufferCallback (::EditLine *e, char *c);
enum class Command
{
None = 0,
EditPrevLine,
EditNextLine,
};
::EditLine *m_editline;
::History *m_history;
::HistEvent m_history_event;
std::string m_program;
std::string m_prompt;
std::string m_lines_prompt;
std::string m_getc_buffer;
Mutex m_getc_mutex;
Condition m_getc_cond;
CompleteCallbackType m_completion_callback;
void *m_completion_callback_baton;
// Mutex m_gets_mutex; // Make sure only one thread
LineCompletedCallbackType m_line_complete_callback;
void *m_line_complete_callback_baton;
Command m_lines_command;
uint32_t m_lines_curr_line;
uint32_t m_lines_max_line;
bool m_prompt_with_line_numbers;
bool m_getting_line;
bool m_got_eof; // Set to true when we detect EOF
bool m_interrupted;
DISALLOW_COPY_AND_ASSIGN(Editline);
};
} // namespace lldb_private
#endif // #if defined(__cplusplus)
#endif // liblldb_Host_h_
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