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Diffstat (limited to 'include/lldb/Host/Editline.h')
| -rw-r--r-- | include/lldb/Host/Editline.h | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/include/lldb/Host/Editline.h b/include/lldb/Host/Editline.h new file mode 100644 index 000000000000..b92de1052f29 --- /dev/null +++ b/include/lldb/Host/Editline.h @@ -0,0 +1,209 @@ +//===-- 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_ |