From 3dc53ed43dead8d5c75685cfbc8bd659c853eaa6 Mon Sep 17 00:00:00 2001 From: Maxwell Jeffress Date: Mon, 6 Oct 2025 13:00:03 +1100 Subject: [PATCH] Updated REPL (thanks to cpp-linenoise!) --- src/defs/defs.cpp | 8 +- src/defs/defs.h | 2 +- src/repl/repl.cpp | 20 +- src/vendor/linenoise/linenoise.h | 0 src/vendor/linenoise/linenoise.hpp | 2587 ++++++++++++++++++++++++++++ 5 files changed, 2605 insertions(+), 12 deletions(-) create mode 100644 src/vendor/linenoise/linenoise.h create mode 100644 src/vendor/linenoise/linenoise.hpp diff --git a/src/defs/defs.cpp b/src/defs/defs.cpp index 6721636..dfdfc36 100644 --- a/src/defs/defs.cpp +++ b/src/defs/defs.cpp @@ -53,7 +53,11 @@ Instruction::Instruction(std::vector toks) { } else if (toks[0].valtype == ValueType::Variable) { instruction = InstructionType::Variable; } else { - error("Instruction should be an identifier or variable value"); + if (inReplMode) { + instruction = InstructionType::Variable; + } else { + error("Instruction should be an identifier or variable value"); + } } if (instruction == InstructionType::Variable) { for (const auto& tok : toks) { @@ -85,7 +89,7 @@ Value::Value(std::string stringval) { } if (stringval.empty()) { - valtype = ValueType::String; + valtype = ValueType::None; string_val = ""; return; } diff --git a/src/defs/defs.h b/src/defs/defs.h index 778a1b6..342a5f4 100644 --- a/src/defs/defs.h +++ b/src/defs/defs.h @@ -10,7 +10,7 @@ enum class InstructionType { }; enum class ValueType { - Processed, Variable, InstructionGroup, List, Map, String, Int, Double, Identifier, Custom, TypePlaceholder + Processed, Variable, InstructionGroup, List, Map, String, Int, Double, Identifier, Custom, TypePlaceholder, None }; struct Instruction; diff --git a/src/repl/repl.cpp b/src/repl/repl.cpp index b806308..79fb459 100644 --- a/src/repl/repl.cpp +++ b/src/repl/repl.cpp @@ -5,11 +5,12 @@ #include #include #include "../data/data.h" +#include "../vendor/linenoise/linenoise.hpp" void repl() { data::initScopes(); inReplMode = true; - std::cout << "Kyn REPL v0.0.1" << std::endl; + std::cout << "Kyn REPL v0.0.2" << std::endl; std::cout << "Type 'exit' to exit" << std::endl; std::string full_command; @@ -17,14 +18,11 @@ void repl() { int brace_level = 0; while (true) { - if (brace_level == 0) { - std::cout << "kyn> "; - } else { - std::cout << ".. > "; - } + auto prompt = brace_level == 0 ? "kyn> " : ".. > "; + auto quit = linenoise::Readline(prompt, line_buf); - if (!getline(std::cin, line_buf)) { - break; // Handle EOF (Ctrl+D) + if (quit) { + break; } for (char c : line_buf) { @@ -44,9 +42,13 @@ void repl() { if (full_command.find_first_not_of(" \t\n\r") != std::string::npos) { std::vector parsed = parse(full_command); for (Instruction inst : parsed) { - execute(inst); + Value instruction = execute(inst); + if (!(instruction.valtype == ValueType::None)) { + std::cout << instruction.toString() << std::endl; + } } } + linenoise::AddHistory(full_command.c_str()); full_command.clear(); brace_level = 0; } diff --git a/src/vendor/linenoise/linenoise.h b/src/vendor/linenoise/linenoise.h new file mode 100644 index 0000000..e69de29 diff --git a/src/vendor/linenoise/linenoise.hpp b/src/vendor/linenoise/linenoise.hpp new file mode 100644 index 0000000..dbf3365 --- /dev/null +++ b/src/vendor/linenoise/linenoise.hpp @@ -0,0 +1,2587 @@ +/* + * linenoise.hpp -- Multi-platform C++ header-only linenoise library. + * + * All credits and commendations have to go to the authors of the + * following excellent libraries. + * + * - linenoise.h and linenoise.c (https://github.com/antirez/linenoise) + * - ANSI.c (https://github.com/adoxa/ansicon) + * - Win32_ANSI.h and Win32_ANSI.c (https://github.com/MSOpenTech/redis) + * + * ------------------------------------------------------------------------ + * + * Copyright (c) 2015 yhirose + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* linenoise.h -- guerrilla line editing library against the idea that a + * line editing lib needs to be 20,000 lines of C code. + * + * See linenoise.c for more information. + * + * ------------------------------------------------------------------------ + * + * Copyright (c) 2010, Salvatore Sanfilippo + * Copyright (c) 2010, Pieter Noordhuis + * + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * ANSI.c - ANSI escape sequence console driver. + * + * Copyright (C) 2005-2014 Jason Hood + * This software is provided 'as-is', without any express or implied + * warranty. In no event will the author be held liable for any damages + * arising from the use of this software. + * + * Permission is granted to anyone to use this software for any purpose, + * including commercial applications, and to alter it and redistribute it + * freely, subject to the following restrictions: + * + * 1. The origin of this software must not be misrepresented; you must not + * claim that you wrote the original software. If you use this software + * in a product, an acknowledgment in the product documentation would be + * appreciated but is not required. + * 2. Altered source versions must be plainly marked as such, and must not be + * misrepresented as being the original software. + * 3. This notice may not be removed or altered from any source distribution. + * + * Jason Hood + * jadoxa@yahoo.com.au + */ + +/* + * Win32_ANSI.h and Win32_ANSI.c + * + * Derived from ANSI.c by Jason Hood, from his ansicon project (https://github.com/adoxa/ansicon), with modifications. + * + * Copyright (c), Microsoft Open Technologies, Inc. + * All rights reserved. + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * - Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef LINENOISE_HPP +#define LINENOISE_HPP + +#ifndef _WIN32 +#include +#include +#include +#else +#ifndef NOMINMAX +#define NOMINMAX +#endif +#include +#include +#ifndef STDIN_FILENO +#define STDIN_FILENO (_fileno(stdin)) +#endif +#ifndef STDOUT_FILENO +#define STDOUT_FILENO 1 +#endif +#define isatty _isatty +#define write win32_write +#define read _read +#pragma warning(push) +#pragma warning(disable : 4996) +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +namespace linenoise { + +#define LINENOISE_DEFAULT_HISTORY_MAX_LEN 100 +#define LINENOISE_MAX_LINE 4096 + +typedef std::function&)> CompletionCallback; + +/* The linenoiseState structure represents the state during line editing, and + * provides methods by which user programs can act on that state. */ +class linenoiseState { + public: + linenoiseState(const char *prompt = NULL, int stdin_fd = STDIN_FILENO, + int stdout_fd = STDOUT_FILENO); + + void EnableMultiLine(); + void DisableMultiLine(); + + bool AddHistory(const char *line); + bool LoadHistory(const char *path); + bool SaveHistory(const char *path); + const std::vector &GetHistory() { return history_; }; + bool SetHistoryMaxLen(size_t len); + + bool Readline(std::string &line); // Primary linenoise entry point + void RefreshLine(); // Restore current line + void WipeLine(); // Temporarily removes line from screen - RefreshLine will restore + void ClearScreen(); // Clear terminal window + + void SetPrompt(const char *p); + void SetPrompt(std::string &p); + + /* Register a callback function to be called for tab-completion. */ + void SetCompletionCallback(CompletionCallback fn) { + completionCallback = fn; + }; + + private: + std::string Readline(bool &quit); + std::string Readline(); + + bool Raw(std::string &line); + int EditInsert(const char *cbuf, int clen); + void EditDelete(); + void EditBackspace(); + void EditDeletePrevWord(); + int Edit(); + void EditHistoryNext(int dir); + void EditMoveLeft(); + void EditMoveRight(); + void EditMoveHome(); + void EditMoveEnd(); + void refreshSingleLine(); + void refreshMultiLine(); + int completeLine(char *cbuf, int *c); + + CompletionCallback completionCallback; + + int ifd_ = STDIN_FILENO; /* Terminal stdin file descriptor. */ + int ofd_ = STDOUT_FILENO; /* Terminal stdout file descriptor. */ + char *buf_ = wbuf_; /* Edited line buffer. */ + int buf_len_ = LINENOISE_MAX_LINE; /* Edited line buffer size. */ + int pos_ = 0; /* Current cursor position. */ + int oldcolpos_ = 0; /* Previous refresh cursor column position. */ + int len_ = 0; /* Current edited line length. */ + int cols_ = -1; /* Number of columns in terminal. */ + int maxrows_ = 0; /* Maximum num of rows used so far (multiline mode) */ + int history_index_ = 0; /* The history index we are currently editing. */ + char wbuf_[LINENOISE_MAX_LINE] = {'\0'}; + std::string history_tmpbuf_; + bool mlmode_ = false; /* Multi line mode. Default is single line. */ + std::mutex mutex_; + std::string prompt_ = std::string("> "); /* Prompt to display. */ + + size_t history_max_len_ = LINENOISE_DEFAULT_HISTORY_MAX_LEN; + std::vector history_; +}; + + +/* Older style public API */ +static linenoiseState *lglobal = NULL; +void SetCompletionCallback(CompletionCallback fn); +void SetMultiLine(bool ml); +bool AddHistory(const char* line); +bool SetHistoryMaxLen(size_t len); +bool SaveHistory(const char* path); +bool LoadHistory(const char* path); +const std::vector& GetHistory(); +bool Readline(const char *prompt, std::string& line); +std::string Readline(const char *prompt, bool& quit); +std::string Readline(const char *prompt); + + +#ifdef _WIN32 + +namespace ansi { + +#define lenof(array) (sizeof(array)/sizeof(*(array))) + +typedef struct +{ + BYTE foreground; // ANSI base color (0 to 7; add 30) + BYTE background; // ANSI base color (0 to 7; add 40) + BYTE bold; // console FOREGROUND_INTENSITY bit + BYTE underline; // console BACKGROUND_INTENSITY bit + BYTE rvideo; // swap foreground/bold & background/underline + BYTE concealed; // set foreground/bold to background/underline + BYTE reverse; // swap console foreground & background attributes +} GRM, *PGRM; // Graphic Rendition Mode + + +inline bool is_digit(char c) { return '0' <= c && c <= '9'; } + +// ========== Global variables and constants + +HANDLE hConOut; // handle to CONOUT$ + +const char ESC = '\x1B'; // ESCape character +const char BEL = '\x07'; +const char SO = '\x0E'; // Shift Out +const char SI = '\x0F'; // Shift In + +const int MAX_ARG = 16; // max number of args in an escape sequence +int state; // automata state +WCHAR prefix; // escape sequence prefix ( '[', ']' or '(' ); +WCHAR prefix2; // secondary prefix ( '?' or '>' ); +WCHAR suffix; // escape sequence suffix +int es_argc; // escape sequence args count +int es_argv[MAX_ARG]; // escape sequence args +WCHAR Pt_arg[MAX_PATH * 2]; // text parameter for Operating System Command +int Pt_len; +BOOL shifted; + + +// DEC Special Graphics Character Set from +// http://vt100.net/docs/vt220-rm/table2-4.html +// Some of these may not look right, depending on the font and code page (in +// particular, the Control Pictures probably won't work at all). +const WCHAR G1[] = +{ + ' ', // _ - blank + L'\x2666', // ` - Black Diamond Suit + L'\x2592', // a - Medium Shade + L'\x2409', // b - HT + L'\x240c', // c - FF + L'\x240d', // d - CR + L'\x240a', // e - LF + L'\x00b0', // f - Degree Sign + L'\x00b1', // g - Plus-Minus Sign + L'\x2424', // h - NL + L'\x240b', // i - VT + L'\x2518', // j - Box Drawings Light Up And Left + L'\x2510', // k - Box Drawings Light Down And Left + L'\x250c', // l - Box Drawings Light Down And Right + L'\x2514', // m - Box Drawings Light Up And Right + L'\x253c', // n - Box Drawings Light Vertical And Horizontal + L'\x00af', // o - SCAN 1 - Macron + L'\x25ac', // p - SCAN 3 - Black Rectangle + L'\x2500', // q - SCAN 5 - Box Drawings Light Horizontal + L'_', // r - SCAN 7 - Low Line + L'_', // s - SCAN 9 - Low Line + L'\x251c', // t - Box Drawings Light Vertical And Right + L'\x2524', // u - Box Drawings Light Vertical And Left + L'\x2534', // v - Box Drawings Light Up And Horizontal + L'\x252c', // w - Box Drawings Light Down And Horizontal + L'\x2502', // x - Box Drawings Light Vertical + L'\x2264', // y - Less-Than Or Equal To + L'\x2265', // z - Greater-Than Or Equal To + L'\x03c0', // { - Greek Small Letter Pi + L'\x2260', // | - Not Equal To + L'\x00a3', // } - Pound Sign + L'\x00b7', // ~ - Middle Dot +}; + +#define FIRST_G1 '_' +#define LAST_G1 '~' + + +// color constants + +#define FOREGROUND_BLACK 0 +#define FOREGROUND_WHITE FOREGROUND_RED|FOREGROUND_GREEN|FOREGROUND_BLUE + +#define BACKGROUND_BLACK 0 +#define BACKGROUND_WHITE BACKGROUND_RED|BACKGROUND_GREEN|BACKGROUND_BLUE + +const BYTE foregroundcolor[8] = + { + FOREGROUND_BLACK, // black foreground + FOREGROUND_RED, // red foreground + FOREGROUND_GREEN, // green foreground + FOREGROUND_RED | FOREGROUND_GREEN, // yellow foreground + FOREGROUND_BLUE, // blue foreground + FOREGROUND_BLUE | FOREGROUND_RED, // magenta foreground + FOREGROUND_BLUE | FOREGROUND_GREEN, // cyan foreground + FOREGROUND_WHITE // white foreground + }; + +const BYTE backgroundcolor[8] = + { + BACKGROUND_BLACK, // black background + BACKGROUND_RED, // red background + BACKGROUND_GREEN, // green background + BACKGROUND_RED | BACKGROUND_GREEN, // yellow background + BACKGROUND_BLUE, // blue background + BACKGROUND_BLUE | BACKGROUND_RED, // magenta background + BACKGROUND_BLUE | BACKGROUND_GREEN, // cyan background + BACKGROUND_WHITE, // white background + }; + +const BYTE attr2ansi[8] = // map console attribute to ANSI number +{ + 0, // black + 4, // blue + 2, // green + 6, // cyan + 1, // red + 5, // magenta + 3, // yellow + 7 // white +}; + +GRM grm; + +// saved cursor position +COORD SavePos; + +// ========== Print Buffer functions + +#define BUFFER_SIZE 2048 + +int nCharInBuffer; +WCHAR ChBuffer[BUFFER_SIZE]; + +//----------------------------------------------------------------------------- +// FlushBuffer() +// Writes the buffer to the console and empties it. +//----------------------------------------------------------------------------- + +inline void FlushBuffer(void) +{ + DWORD nWritten; + if (nCharInBuffer <= 0) return; + WriteConsoleW(hConOut, ChBuffer, nCharInBuffer, &nWritten, NULL); + nCharInBuffer = 0; +} + +//----------------------------------------------------------------------------- +// PushBuffer( WCHAR c ) +// Adds a character in the buffer. +//----------------------------------------------------------------------------- + +inline void PushBuffer(WCHAR c) +{ + if (shifted && c >= FIRST_G1 && c <= LAST_G1) + c = G1[c - FIRST_G1]; + ChBuffer[nCharInBuffer] = c; + if (++nCharInBuffer == BUFFER_SIZE) + FlushBuffer(); +} + +//----------------------------------------------------------------------------- +// SendSequence( LPCWSTR seq ) +// Send the string to the input buffer. +//----------------------------------------------------------------------------- + +inline void SendSequence(LPCWSTR seq) +{ + DWORD out; + INPUT_RECORD in; + HANDLE hStdIn = GetStdHandle(STD_INPUT_HANDLE); + + in.EventType = KEY_EVENT; + in.Event.KeyEvent.bKeyDown = TRUE; + in.Event.KeyEvent.wRepeatCount = 1; + in.Event.KeyEvent.wVirtualKeyCode = 0; + in.Event.KeyEvent.wVirtualScanCode = 0; + in.Event.KeyEvent.dwControlKeyState = 0; + for (; *seq; ++seq) + { + in.Event.KeyEvent.uChar.UnicodeChar = *seq; + WriteConsoleInput(hStdIn, &in, 1, &out); + } +} + +// ========== Print functions + +//----------------------------------------------------------------------------- +// InterpretEscSeq() +// Interprets the last escape sequence scanned by ParseAndPrintANSIString +// prefix escape sequence prefix +// es_argc escape sequence args count +// es_argv[] escape sequence args array +// suffix escape sequence suffix +// +// for instance, with \e[33;45;1m we have +// prefix = '[', +// es_argc = 3, es_argv[0] = 33, es_argv[1] = 45, es_argv[2] = 1 +// suffix = 'm' +//----------------------------------------------------------------------------- + +inline void InterpretEscSeq(void) +{ + WORD attribute; + CONSOLE_SCREEN_BUFFER_INFO Info; + CONSOLE_CURSOR_INFO CursInfo; + DWORD len, NumberOfCharsWritten; + COORD Pos; + SMALL_RECT Rect; + CHAR_INFO CharInfo; + + if (prefix == '[') + { + if (prefix2 == '?' && (suffix == 'h' || suffix == 'l')) + { + if (es_argc == 1 && es_argv[0] == 25) + { + GetConsoleCursorInfo(hConOut, &CursInfo); + CursInfo.bVisible = (suffix == 'h'); + SetConsoleCursorInfo(hConOut, &CursInfo); + return; + } + } + // Ignore any other \e[? or \e[> sequences. + if (prefix2 != 0) + return; + + GetConsoleScreenBufferInfo(hConOut, &Info); + switch (suffix) + { + case 'm': + if (es_argc == 0) es_argv[es_argc++] = 0; + for (int i = 0; i < es_argc; i++) + { + if (30 <= es_argv[i] && es_argv[i] <= 37) + grm.foreground = es_argv[i] - 30; + else if (40 <= es_argv[i] && es_argv[i] <= 47) + grm.background = es_argv[i] - 40; + else switch (es_argv[i]) + { + case 0: + case 39: + case 49: + { + WCHAR def[4]; + int a; + *def = '7'; def[1] = '\0'; + GetEnvironmentVariableW(L"ANSICON_DEF", def, lenof(def)); + a = wcstol(def, NULL, 16); + grm.reverse = FALSE; + if (a < 0) + { + grm.reverse = TRUE; + a = -a; + } + if (es_argv[i] != 49) + grm.foreground = attr2ansi[a & 7]; + if (es_argv[i] != 39) + grm.background = attr2ansi[(a >> 4) & 7]; + if (es_argv[i] == 0) + { + if (es_argc == 1) + { + grm.bold = a & FOREGROUND_INTENSITY; + grm.underline = a & BACKGROUND_INTENSITY; + } + else + { + grm.bold = 0; + grm.underline = 0; + } + grm.rvideo = 0; + grm.concealed = 0; + } + } + break; + + case 1: grm.bold = FOREGROUND_INTENSITY; break; + case 5: // blink + case 4: grm.underline = BACKGROUND_INTENSITY; break; + case 7: grm.rvideo = 1; break; + case 8: grm.concealed = 1; break; + case 21: // oops, this actually turns on double underline + case 22: grm.bold = 0; break; + case 25: + case 24: grm.underline = 0; break; + case 27: grm.rvideo = 0; break; + case 28: grm.concealed = 0; break; + } + } + if (grm.concealed) + { + if (grm.rvideo) + { + attribute = foregroundcolor[grm.foreground] + | backgroundcolor[grm.foreground]; + if (grm.bold) + attribute |= FOREGROUND_INTENSITY | BACKGROUND_INTENSITY; + } + else + { + attribute = foregroundcolor[grm.background] + | backgroundcolor[grm.background]; + if (grm.underline) + attribute |= FOREGROUND_INTENSITY | BACKGROUND_INTENSITY; + } + } + else if (grm.rvideo) + { + attribute = foregroundcolor[grm.background] + | backgroundcolor[grm.foreground]; + if (grm.bold) + attribute |= BACKGROUND_INTENSITY; + if (grm.underline) + attribute |= FOREGROUND_INTENSITY; + } + else + attribute = foregroundcolor[grm.foreground] | grm.bold + | backgroundcolor[grm.background] | grm.underline; + if (grm.reverse) + attribute = ((attribute >> 4) & 15) | ((attribute & 15) << 4); + SetConsoleTextAttribute(hConOut, attribute); + return; + + case 'J': + if (es_argc == 0) es_argv[es_argc++] = 0; // ESC[J == ESC[0J + if (es_argc != 1) return; + switch (es_argv[0]) + { + case 0: // ESC[0J erase from cursor to end of display + len = (Info.dwSize.Y - Info.dwCursorPosition.Y - 1) * Info.dwSize.X + + Info.dwSize.X - Info.dwCursorPosition.X - 1; + FillConsoleOutputCharacter(hConOut, ' ', len, + Info.dwCursorPosition, + &NumberOfCharsWritten); + FillConsoleOutputAttribute(hConOut, Info.wAttributes, len, + Info.dwCursorPosition, + &NumberOfCharsWritten); + return; + + case 1: // ESC[1J erase from start to cursor. + Pos.X = 0; + Pos.Y = 0; + len = Info.dwCursorPosition.Y * Info.dwSize.X + + Info.dwCursorPosition.X + 1; + FillConsoleOutputCharacter(hConOut, ' ', len, Pos, + &NumberOfCharsWritten); + FillConsoleOutputAttribute(hConOut, Info.wAttributes, len, Pos, + &NumberOfCharsWritten); + return; + + case 2: // ESC[2J Clear screen and home cursor + Pos.X = 0; + Pos.Y = 0; + len = Info.dwSize.X * Info.dwSize.Y; + FillConsoleOutputCharacter(hConOut, ' ', len, Pos, + &NumberOfCharsWritten); + FillConsoleOutputAttribute(hConOut, Info.wAttributes, len, Pos, + &NumberOfCharsWritten); + SetConsoleCursorPosition(hConOut, Pos); + return; + + default: + return; + } + + case 'K': + if (es_argc == 0) es_argv[es_argc++] = 0; // ESC[K == ESC[0K + if (es_argc != 1) return; + switch (es_argv[0]) + { + case 0: // ESC[0K Clear to end of line + len = Info.dwSize.X - Info.dwCursorPosition.X + 1; + FillConsoleOutputCharacter(hConOut, ' ', len, + Info.dwCursorPosition, + &NumberOfCharsWritten); + FillConsoleOutputAttribute(hConOut, Info.wAttributes, len, + Info.dwCursorPosition, + &NumberOfCharsWritten); + return; + + case 1: // ESC[1K Clear from start of line to cursor + Pos.X = 0; + Pos.Y = Info.dwCursorPosition.Y; + FillConsoleOutputCharacter(hConOut, ' ', + Info.dwCursorPosition.X + 1, Pos, + &NumberOfCharsWritten); + FillConsoleOutputAttribute(hConOut, Info.wAttributes, + Info.dwCursorPosition.X + 1, Pos, + &NumberOfCharsWritten); + return; + + case 2: // ESC[2K Clear whole line. + Pos.X = 0; + Pos.Y = Info.dwCursorPosition.Y; + FillConsoleOutputCharacter(hConOut, ' ', Info.dwSize.X, Pos, + &NumberOfCharsWritten); + FillConsoleOutputAttribute(hConOut, Info.wAttributes, + Info.dwSize.X, Pos, + &NumberOfCharsWritten); + return; + + default: + return; + } + + case 'X': // ESC[#X Erase # characters. + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[X == ESC[1X + if (es_argc != 1) return; + FillConsoleOutputCharacter(hConOut, ' ', es_argv[0], + Info.dwCursorPosition, + &NumberOfCharsWritten); + FillConsoleOutputAttribute(hConOut, Info.wAttributes, es_argv[0], + Info.dwCursorPosition, + &NumberOfCharsWritten); + return; + + case 'L': // ESC[#L Insert # blank lines. + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[L == ESC[1L + if (es_argc != 1) return; + Rect.Left = 0; + Rect.Top = Info.dwCursorPosition.Y; + Rect.Right = Info.dwSize.X - 1; + Rect.Bottom = Info.dwSize.Y - 1; + Pos.X = 0; + Pos.Y = Info.dwCursorPosition.Y + es_argv[0]; + CharInfo.Char.UnicodeChar = ' '; + CharInfo.Attributes = Info.wAttributes; + ScrollConsoleScreenBuffer(hConOut, &Rect, NULL, Pos, &CharInfo); + return; + + case 'M': // ESC[#M Delete # lines. + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[M == ESC[1M + if (es_argc != 1) return; + if (es_argv[0] > Info.dwSize.Y - Info.dwCursorPosition.Y) + es_argv[0] = Info.dwSize.Y - Info.dwCursorPosition.Y; + Rect.Left = 0; + Rect.Top = Info.dwCursorPosition.Y + es_argv[0]; + Rect.Right = Info.dwSize.X - 1; + Rect.Bottom = Info.dwSize.Y - 1; + Pos.X = 0; + Pos.Y = Info.dwCursorPosition.Y; + CharInfo.Char.UnicodeChar = ' '; + CharInfo.Attributes = Info.wAttributes; + ScrollConsoleScreenBuffer(hConOut, &Rect, NULL, Pos, &CharInfo); + return; + + case 'P': // ESC[#P Delete # characters. + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[P == ESC[1P + if (es_argc != 1) return; + if (Info.dwCursorPosition.X + es_argv[0] > Info.dwSize.X - 1) + es_argv[0] = Info.dwSize.X - Info.dwCursorPosition.X; + Rect.Left = Info.dwCursorPosition.X + es_argv[0]; + Rect.Top = Info.dwCursorPosition.Y; + Rect.Right = Info.dwSize.X - 1; + Rect.Bottom = Info.dwCursorPosition.Y; + CharInfo.Char.UnicodeChar = ' '; + CharInfo.Attributes = Info.wAttributes; + ScrollConsoleScreenBuffer(hConOut, &Rect, NULL, Info.dwCursorPosition, + &CharInfo); + return; + + case '@': // ESC[#@ Insert # blank characters. + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[@ == ESC[1@ + if (es_argc != 1) return; + if (Info.dwCursorPosition.X + es_argv[0] > Info.dwSize.X - 1) + es_argv[0] = Info.dwSize.X - Info.dwCursorPosition.X; + Rect.Left = Info.dwCursorPosition.X; + Rect.Top = Info.dwCursorPosition.Y; + Rect.Right = Info.dwSize.X - 1 - es_argv[0]; + Rect.Bottom = Info.dwCursorPosition.Y; + Pos.X = Info.dwCursorPosition.X + es_argv[0]; + Pos.Y = Info.dwCursorPosition.Y; + CharInfo.Char.UnicodeChar = ' '; + CharInfo.Attributes = Info.wAttributes; + ScrollConsoleScreenBuffer(hConOut, &Rect, NULL, Pos, &CharInfo); + return; + + case 'k': // ESC[#k + case 'A': // ESC[#A Moves cursor up # lines + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[A == ESC[1A + if (es_argc != 1) return; + Pos.Y = Info.dwCursorPosition.Y - es_argv[0]; + if (Pos.Y < 0) Pos.Y = 0; + Pos.X = Info.dwCursorPosition.X; + SetConsoleCursorPosition(hConOut, Pos); + return; + + case 'e': // ESC[#e + case 'B': // ESC[#B Moves cursor down # lines + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[B == ESC[1B + if (es_argc != 1) return; + Pos.Y = Info.dwCursorPosition.Y + es_argv[0]; + if (Pos.Y >= Info.dwSize.Y) Pos.Y = Info.dwSize.Y - 1; + Pos.X = Info.dwCursorPosition.X; + SetConsoleCursorPosition(hConOut, Pos); + return; + + case 'a': // ESC[#a + case 'C': // ESC[#C Moves cursor forward # spaces + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[C == ESC[1C + if (es_argc != 1) return; + Pos.X = Info.dwCursorPosition.X + es_argv[0]; + if (Pos.X >= Info.dwSize.X) Pos.X = Info.dwSize.X - 1; + Pos.Y = Info.dwCursorPosition.Y; + SetConsoleCursorPosition(hConOut, Pos); + return; + + case 'j': // ESC[#j + case 'D': // ESC[#D Moves cursor back # spaces + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[D == ESC[1D + if (es_argc != 1) return; + Pos.X = Info.dwCursorPosition.X - es_argv[0]; + if (Pos.X < 0) Pos.X = 0; + Pos.Y = Info.dwCursorPosition.Y; + SetConsoleCursorPosition(hConOut, Pos); + return; + + case 'E': // ESC[#E Moves cursor down # lines, column 1. + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[E == ESC[1E + if (es_argc != 1) return; + Pos.Y = Info.dwCursorPosition.Y + es_argv[0]; + if (Pos.Y >= Info.dwSize.Y) Pos.Y = Info.dwSize.Y - 1; + Pos.X = 0; + SetConsoleCursorPosition(hConOut, Pos); + return; + + case 'F': // ESC[#F Moves cursor up # lines, column 1. + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[F == ESC[1F + if (es_argc != 1) return; + Pos.Y = Info.dwCursorPosition.Y - es_argv[0]; + if (Pos.Y < 0) Pos.Y = 0; + Pos.X = 0; + SetConsoleCursorPosition(hConOut, Pos); + return; + + case '`': // ESC[#` + case 'G': // ESC[#G Moves cursor column # in current row. + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[G == ESC[1G + if (es_argc != 1) return; + Pos.X = es_argv[0] - 1; + if (Pos.X >= Info.dwSize.X) Pos.X = Info.dwSize.X - 1; + if (Pos.X < 0) Pos.X = 0; + Pos.Y = Info.dwCursorPosition.Y; + SetConsoleCursorPosition(hConOut, Pos); + return; + + case 'd': // ESC[#d Moves cursor row #, current column. + if (es_argc == 0) es_argv[es_argc++] = 1; // ESC[d == ESC[1d + if (es_argc != 1) return; + Pos.Y = es_argv[0] - 1; + if (Pos.Y < 0) Pos.Y = 0; + if (Pos.Y >= Info.dwSize.Y) Pos.Y = Info.dwSize.Y - 1; + SetConsoleCursorPosition(hConOut, Pos); + return; + + case 'f': // ESC[#;#f + case 'H': // ESC[#;#H Moves cursor to line #, column # + if (es_argc == 0) + es_argv[es_argc++] = 1; // ESC[H == ESC[1;1H + if (es_argc == 1) + es_argv[es_argc++] = 1; // ESC[#H == ESC[#;1H + if (es_argc > 2) return; + Pos.X = es_argv[1] - 1; + if (Pos.X < 0) Pos.X = 0; + if (Pos.X >= Info.dwSize.X) Pos.X = Info.dwSize.X - 1; + Pos.Y = es_argv[0] - 1; + if (Pos.Y < 0) Pos.Y = 0; + if (Pos.Y >= Info.dwSize.Y) Pos.Y = Info.dwSize.Y - 1; + SetConsoleCursorPosition(hConOut, Pos); + return; + + case 's': // ESC[s Saves cursor position for recall later + if (es_argc != 0) return; + SavePos = Info.dwCursorPosition; + return; + + case 'u': // ESC[u Return to saved cursor position + if (es_argc != 0) return; + SetConsoleCursorPosition(hConOut, SavePos); + return; + + case 'n': // ESC[#n Device status report + if (es_argc != 1) return; // ESC[n == ESC[0n -> ignored + switch (es_argv[0]) + { + case 5: // ESC[5n Report status + SendSequence(L"\33[0n"); // "OK" + return; + + case 6: // ESC[6n Report cursor position + { + WCHAR buf[32]; + swprintf(buf, 32, L"\33[%d;%dR", Info.dwCursorPosition.Y + 1, + Info.dwCursorPosition.X + 1); + SendSequence(buf); + } + return; + + default: + return; + } + + case 't': // ESC[#t Window manipulation + if (es_argc != 1) return; + if (es_argv[0] == 21) // ESC[21t Report xterm window's title + { + WCHAR buf[MAX_PATH * 2]; + len = GetConsoleTitleW(buf + 3, lenof(buf) - 3 - 2); + // Too bad if it's too big or fails. + buf[0] = ESC; + buf[1] = ']'; + buf[2] = 'l'; + buf[3 + len] = ESC; + buf[3 + len + 1] = '\\'; + buf[3 + len + 2] = '\0'; + SendSequence(buf); + } + return; + + default: + return; + } + } + else // (prefix == ']') + { + // Ignore any \e]? or \e]> sequences. + if (prefix2 != 0) + return; + + if (es_argc == 1 && es_argv[0] == 0) // ESC]0;titleST + { + SetConsoleTitleW(Pt_arg); + } + } +} + +//----------------------------------------------------------------------------- +// ParseAndPrintANSIString(hDev, lpBuffer, nNumberOfBytesToWrite) +// Parses the string lpBuffer, interprets the escapes sequences and prints the +// characters in the device hDev (console). +// The lexer is a three states automata. +// If the number of arguments es_argc > MAX_ARG, only the MAX_ARG-1 firsts and +// the last arguments are processed (no es_argv[] overflow). +//----------------------------------------------------------------------------- + +inline BOOL ParseAndPrintANSIString(HANDLE hDev, LPCVOID lpBuffer, DWORD nNumberOfBytesToWrite, LPDWORD lpNumberOfBytesWritten) +{ + DWORD i; + LPCSTR s; + + if (hDev != hConOut) // reinit if device has changed + { + hConOut = hDev; + state = 1; + shifted = FALSE; + } + for (i = nNumberOfBytesToWrite, s = (LPCSTR)lpBuffer; i > 0; i--, s++) + { + if (state == 1) + { + if (*s == ESC) state = 2; + else if (*s == SO) shifted = TRUE; + else if (*s == SI) shifted = FALSE; + else PushBuffer(*s); + } + else if (state == 2) + { + if (*s == ESC); // \e\e...\e == \e + else if ((*s == '[') || (*s == ']')) + { + FlushBuffer(); + prefix = *s; + prefix2 = 0; + state = 3; + Pt_len = 0; + *Pt_arg = '\0'; + } + else if (*s == ')' || *s == '(') state = 6; + else state = 1; + } + else if (state == 3) + { + if (is_digit(*s)) + { + es_argc = 0; + es_argv[0] = *s - '0'; + state = 4; + } + else if (*s == ';') + { + es_argc = 1; + es_argv[0] = 0; + es_argv[1] = 0; + state = 4; + } + else if (*s == '?' || *s == '>') + { + prefix2 = *s; + } + else + { + es_argc = 0; + suffix = *s; + InterpretEscSeq(); + state = 1; + } + } + else if (state == 4) + { + if (is_digit(*s)) + { + es_argv[es_argc] = 10 * es_argv[es_argc] + (*s - '0'); + } + else if (*s == ';') + { + if (es_argc < MAX_ARG - 1) es_argc++; + es_argv[es_argc] = 0; + if (prefix == ']') + state = 5; + } + else + { + es_argc++; + suffix = *s; + InterpretEscSeq(); + state = 1; + } + } + else if (state == 5) + { + if (*s == BEL) + { + Pt_arg[Pt_len] = '\0'; + InterpretEscSeq(); + state = 1; + } + else if (*s == '\\' && Pt_len > 0 && Pt_arg[Pt_len - 1] == ESC) + { + Pt_arg[--Pt_len] = '\0'; + InterpretEscSeq(); + state = 1; + } + else if (Pt_len < lenof(Pt_arg) - 1) + Pt_arg[Pt_len++] = *s; + } + else if (state == 6) + { + // Ignore it (ESC ) 0 is implicit; nothing else is supported). + state = 1; + } + } + FlushBuffer(); + if (lpNumberOfBytesWritten != NULL) + *lpNumberOfBytesWritten = nNumberOfBytesToWrite - i; + return (i == 0); +} + +} // namespace ansi + +HANDLE hOut; +HANDLE hIn; +DWORD consolemodeIn = 0; + +inline int win32read(int *c) { + DWORD foo; + INPUT_RECORD b; + KEY_EVENT_RECORD e; + BOOL altgr; + + while (1) { + if (!ReadConsoleInput(hIn, &b, 1, &foo)) return 0; + if (!foo) return 0; + + if (b.EventType == KEY_EVENT && b.Event.KeyEvent.bKeyDown) { + + e = b.Event.KeyEvent; + *c = b.Event.KeyEvent.uChar.AsciiChar; + + altgr = e.dwControlKeyState & (LEFT_CTRL_PRESSED | RIGHT_ALT_PRESSED); + + if (e.dwControlKeyState & (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED) && !altgr) { + + /* Ctrl+Key */ + switch (*c) { + case 'D': + *c = 4; + return 1; + case 'C': + *c = 3; + return 1; + case 'H': + *c = 8; + return 1; + case 'T': + *c = 20; + return 1; + case 'B': /* ctrl-b, left_arrow */ + *c = 2; + return 1; + case 'F': /* ctrl-f right_arrow*/ + *c = 6; + return 1; + case 'P': /* ctrl-p up_arrow*/ + *c = 16; + return 1; + case 'N': /* ctrl-n down_arrow*/ + *c = 14; + return 1; + case 'U': /* Ctrl+u, delete the whole line. */ + *c = 21; + return 1; + case 'K': /* Ctrl+k, delete from current to end of line. */ + *c = 11; + return 1; + case 'A': /* Ctrl+a, go to the start of the line */ + *c = 1; + return 1; + case 'E': /* ctrl+e, go to the end of the line */ + *c = 5; + return 1; + } + + /* Other Ctrl+KEYs ignored */ + } else { + + switch (e.wVirtualKeyCode) { + + case VK_ESCAPE: /* ignore - send ctrl-c, will return -1 */ + *c = 3; + return 1; + case VK_RETURN: /* enter */ + *c = 13; + return 1; + case VK_LEFT: /* left */ + *c = 2; + return 1; + case VK_RIGHT: /* right */ + *c = 6; + return 1; + case VK_UP: /* up */ + *c = 16; + return 1; + case VK_DOWN: /* down */ + *c = 14; + return 1; + case VK_HOME: + *c = 1; + return 1; + case VK_END: + *c = 5; + return 1; + case VK_BACK: + *c = 8; + return 1; + case VK_DELETE: + *c = 4; /* same as Ctrl+D above */ + return 1; + default: + if (*c) return 1; + } + } + } + } + + return -1; /* Makes compiler happy */ +} + +inline int win32_write(int fd, const void *buffer, unsigned int count) { + if (fd == _fileno(stdout)) { + DWORD bytesWritten = 0; + if (FALSE != ansi::ParseAndPrintANSIString(GetStdHandle(STD_OUTPUT_HANDLE), buffer, (DWORD)count, &bytesWritten)) { + return (int)bytesWritten; + } else { + errno = GetLastError(); + return 0; + } + } else if (fd == _fileno(stderr)) { + DWORD bytesWritten = 0; + if (FALSE != ansi::ParseAndPrintANSIString(GetStdHandle(STD_ERROR_HANDLE), buffer, (DWORD)count, &bytesWritten)) { + return (int)bytesWritten; + } else { + errno = GetLastError(); + return 0; + } + } else { + return _write(fd, buffer, count); + } +} +#endif // _WIN32 + +#ifndef _WIN32 +static struct termios orig_termios; /* In order to restore at exit.*/ +#endif +static bool rawmode = false; /* For atexit() function to check if restore is needed*/ +static bool atexit_registered = false; /* Register atexit just 1 time. */ + +enum KEY_ACTION { + KEY_NULL = 0, /* NULL */ + CTRL_A = 1, /* Ctrl+a */ + CTRL_B = 2, /* Ctrl-b */ + CTRL_C = 3, /* Ctrl-c */ + CTRL_D = 4, /* Ctrl-d */ + CTRL_E = 5, /* Ctrl-e */ + CTRL_F = 6, /* Ctrl-f */ + CTRL_H = 8, /* Ctrl-h */ + TAB = 9, /* Tab */ + CTRL_K = 11, /* Ctrl+k */ + CTRL_L = 12, /* Ctrl+l */ + ENTER = 13, /* Enter */ + CTRL_N = 14, /* Ctrl-n */ + CTRL_P = 16, /* Ctrl-p */ + CTRL_T = 20, /* Ctrl-t */ + CTRL_U = 21, /* Ctrl+u */ + CTRL_W = 23, /* Ctrl+w */ + ESC = 27, /* Escape */ + BACKSPACE = 127 /* Backspace */ +}; + +void linenoiseAtExit(void); +bool AddHistory(const char *line); + +/* ============================ UTF8 utilities ============================== */ + +static unsigned long unicodeWideCharTable[][2] = { + { 0x1100, 0x115F }, { 0x2329, 0x232A }, { 0x2E80, 0x2E99, }, { 0x2E9B, 0x2EF3, }, + { 0x2F00, 0x2FD5, }, { 0x2FF0, 0x2FFB, }, { 0x3000, 0x303E, }, { 0x3041, 0x3096, }, + { 0x3099, 0x30FF, }, { 0x3105, 0x312D, }, { 0x3131, 0x318E, }, { 0x3190, 0x31BA, }, + { 0x31C0, 0x31E3, }, { 0x31F0, 0x321E, }, { 0x3220, 0x3247, }, { 0x3250, 0x4DBF, }, + { 0x4E00, 0xA48C, }, { 0xA490, 0xA4C6, }, { 0xA960, 0xA97C, }, { 0xAC00, 0xD7A3, }, + { 0xF900, 0xFAFF, }, { 0xFE10, 0xFE19, }, { 0xFE30, 0xFE52, }, { 0xFE54, 0xFE66, }, + { 0xFE68, 0xFE6B, }, { 0xFF01, 0xFFE6, }, + { 0x1B000, 0x1B001, }, { 0x1F200, 0x1F202, }, { 0x1F210, 0x1F23A, }, + { 0x1F240, 0x1F248, }, { 0x1F250, 0x1F251, }, { 0x20000, 0x3FFFD, }, +}; + +static int unicodeWideCharTableSize = sizeof(unicodeWideCharTable) / sizeof(unicodeWideCharTable[0]); + +static int unicodeIsWideChar(unsigned long cp) +{ + int i; + for (i = 0; i < unicodeWideCharTableSize; i++) { + if (unicodeWideCharTable[i][0] <= cp && cp <= unicodeWideCharTable[i][1]) { + return 1; + } + } + return 0; +} + +static unsigned long unicodeCombiningCharTable[] = { + 0x0300,0x0301,0x0302,0x0303,0x0304,0x0305,0x0306,0x0307, + 0x0308,0x0309,0x030A,0x030B,0x030C,0x030D,0x030E,0x030F, + 0x0310,0x0311,0x0312,0x0313,0x0314,0x0315,0x0316,0x0317, + 0x0318,0x0319,0x031A,0x031B,0x031C,0x031D,0x031E,0x031F, + 0x0320,0x0321,0x0322,0x0323,0x0324,0x0325,0x0326,0x0327, + 0x0328,0x0329,0x032A,0x032B,0x032C,0x032D,0x032E,0x032F, + 0x0330,0x0331,0x0332,0x0333,0x0334,0x0335,0x0336,0x0337, + 0x0338,0x0339,0x033A,0x033B,0x033C,0x033D,0x033E,0x033F, + 0x0340,0x0341,0x0342,0x0343,0x0344,0x0345,0x0346,0x0347, + 0x0348,0x0349,0x034A,0x034B,0x034C,0x034D,0x034E,0x034F, + 0x0350,0x0351,0x0352,0x0353,0x0354,0x0355,0x0356,0x0357, + 0x0358,0x0359,0x035A,0x035B,0x035C,0x035D,0x035E,0x035F, + 0x0360,0x0361,0x0362,0x0363,0x0364,0x0365,0x0366,0x0367, + 0x0368,0x0369,0x036A,0x036B,0x036C,0x036D,0x036E,0x036F, + 0x0483,0x0484,0x0485,0x0486,0x0487,0x0591,0x0592,0x0593, + 0x0594,0x0595,0x0596,0x0597,0x0598,0x0599,0x059A,0x059B, + 0x059C,0x059D,0x059E,0x059F,0x05A0,0x05A1,0x05A2,0x05A3, + 0x05A4,0x05A5,0x05A6,0x05A7,0x05A8,0x05A9,0x05AA,0x05AB, + 0x05AC,0x05AD,0x05AE,0x05AF,0x05B0,0x05B1,0x05B2,0x05B3, + 0x05B4,0x05B5,0x05B6,0x05B7,0x05B8,0x05B9,0x05BA,0x05BB, + 0x05BC,0x05BD,0x05BF,0x05C1,0x05C2,0x05C4,0x05C5,0x05C7, + 0x0610,0x0611,0x0612,0x0613,0x0614,0x0615,0x0616,0x0617, + 0x0618,0x0619,0x061A,0x064B,0x064C,0x064D,0x064E,0x064F, + 0x0650,0x0651,0x0652,0x0653,0x0654,0x0655,0x0656,0x0657, + 0x0658,0x0659,0x065A,0x065B,0x065C,0x065D,0x065E,0x065F, + 0x0670,0x06D6,0x06D7,0x06D8,0x06D9,0x06DA,0x06DB,0x06DC, + 0x06DF,0x06E0,0x06E1,0x06E2,0x06E3,0x06E4,0x06E7,0x06E8, + 0x06EA,0x06EB,0x06EC,0x06ED,0x0711,0x0730,0x0731,0x0732, + 0x0733,0x0734,0x0735,0x0736,0x0737,0x0738,0x0739,0x073A, + 0x073B,0x073C,0x073D,0x073E,0x073F,0x0740,0x0741,0x0742, + 0x0743,0x0744,0x0745,0x0746,0x0747,0x0748,0x0749,0x074A, + 0x07A6,0x07A7,0x07A8,0x07A9,0x07AA,0x07AB,0x07AC,0x07AD, + 0x07AE,0x07AF,0x07B0,0x07EB,0x07EC,0x07ED,0x07EE,0x07EF, + 0x07F0,0x07F1,0x07F2,0x07F3,0x0816,0x0817,0x0818,0x0819, + 0x081B,0x081C,0x081D,0x081E,0x081F,0x0820,0x0821,0x0822, + 0x0823,0x0825,0x0826,0x0827,0x0829,0x082A,0x082B,0x082C, + 0x082D,0x0859,0x085A,0x085B,0x08E3,0x08E4,0x08E5,0x08E6, + 0x08E7,0x08E8,0x08E9,0x08EA,0x08EB,0x08EC,0x08ED,0x08EE, + 0x08EF,0x08F0,0x08F1,0x08F2,0x08F3,0x08F4,0x08F5,0x08F6, + 0x08F7,0x08F8,0x08F9,0x08FA,0x08FB,0x08FC,0x08FD,0x08FE, + 0x08FF,0x0900,0x0901,0x0902,0x093A,0x093C,0x0941,0x0942, + 0x0943,0x0944,0x0945,0x0946,0x0947,0x0948,0x094D,0x0951, + 0x0952,0x0953,0x0954,0x0955,0x0956,0x0957,0x0962,0x0963, + 0x0981,0x09BC,0x09C1,0x09C2,0x09C3,0x09C4,0x09CD,0x09E2, + 0x09E3,0x0A01,0x0A02,0x0A3C,0x0A41,0x0A42,0x0A47,0x0A48, + 0x0A4B,0x0A4C,0x0A4D,0x0A51,0x0A70,0x0A71,0x0A75,0x0A81, + 0x0A82,0x0ABC,0x0AC1,0x0AC2,0x0AC3,0x0AC4,0x0AC5,0x0AC7, + 0x0AC8,0x0ACD,0x0AE2,0x0AE3,0x0B01,0x0B3C,0x0B3F,0x0B41, + 0x0B42,0x0B43,0x0B44,0x0B4D,0x0B56,0x0B62,0x0B63,0x0B82, + 0x0BC0,0x0BCD,0x0C00,0x0C3E,0x0C3F,0x0C40,0x0C46,0x0C47, + 0x0C48,0x0C4A,0x0C4B,0x0C4C,0x0C4D,0x0C55,0x0C56,0x0C62, 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0x1DA5F,0x1DA60,0x1DA61,0x1DA62,0x1DA63,0x1DA64,0x1DA65,0x1DA66, + 0x1DA67,0x1DA68,0x1DA69,0x1DA6A,0x1DA6B,0x1DA6C,0x1DA75,0x1DA84, + 0x1DA9B,0x1DA9C,0x1DA9D,0x1DA9E,0x1DA9F,0x1DAA1,0x1DAA2,0x1DAA3, + 0x1DAA4,0x1DAA5,0x1DAA6,0x1DAA7,0x1DAA8,0x1DAA9,0x1DAAA,0x1DAAB, + 0x1DAAC,0x1DAAD,0x1DAAE,0x1DAAF,0x1E8D0,0x1E8D1,0x1E8D2,0x1E8D3, + 0x1E8D4,0x1E8D5,0x1E8D6,0xE0100,0xE0101,0xE0102,0xE0103,0xE0104, + 0xE0105,0xE0106,0xE0107,0xE0108,0xE0109,0xE010A,0xE010B,0xE010C, + 0xE010D,0xE010E,0xE010F,0xE0110,0xE0111,0xE0112,0xE0113,0xE0114, + 0xE0115,0xE0116,0xE0117,0xE0118,0xE0119,0xE011A,0xE011B,0xE011C, + 0xE011D,0xE011E,0xE011F,0xE0120,0xE0121,0xE0122,0xE0123,0xE0124, + 0xE0125,0xE0126,0xE0127,0xE0128,0xE0129,0xE012A,0xE012B,0xE012C, + 0xE012D,0xE012E,0xE012F,0xE0130,0xE0131,0xE0132,0xE0133,0xE0134, + 0xE0135,0xE0136,0xE0137,0xE0138,0xE0139,0xE013A,0xE013B,0xE013C, + 0xE013D,0xE013E,0xE013F,0xE0140,0xE0141,0xE0142,0xE0143,0xE0144, + 0xE0145,0xE0146,0xE0147,0xE0148,0xE0149,0xE014A,0xE014B,0xE014C, + 0xE014D,0xE014E,0xE014F,0xE0150,0xE0151,0xE0152,0xE0153,0xE0154, + 0xE0155,0xE0156,0xE0157,0xE0158,0xE0159,0xE015A,0xE015B,0xE015C, + 0xE015D,0xE015E,0xE015F,0xE0160,0xE0161,0xE0162,0xE0163,0xE0164, + 0xE0165,0xE0166,0xE0167,0xE0168,0xE0169,0xE016A,0xE016B,0xE016C, + 0xE016D,0xE016E,0xE016F,0xE0170,0xE0171,0xE0172,0xE0173,0xE0174, + 0xE0175,0xE0176,0xE0177,0xE0178,0xE0179,0xE017A,0xE017B,0xE017C, + 0xE017D,0xE017E,0xE017F,0xE0180,0xE0181,0xE0182,0xE0183,0xE0184, + 0xE0185,0xE0186,0xE0187,0xE0188,0xE0189,0xE018A,0xE018B,0xE018C, + 0xE018D,0xE018E,0xE018F,0xE0190,0xE0191,0xE0192,0xE0193,0xE0194, + 0xE0195,0xE0196,0xE0197,0xE0198,0xE0199,0xE019A,0xE019B,0xE019C, + 0xE019D,0xE019E,0xE019F,0xE01A0,0xE01A1,0xE01A2,0xE01A3,0xE01A4, + 0xE01A5,0xE01A6,0xE01A7,0xE01A8,0xE01A9,0xE01AA,0xE01AB,0xE01AC, + 0xE01AD,0xE01AE,0xE01AF,0xE01B0,0xE01B1,0xE01B2,0xE01B3,0xE01B4, + 0xE01B5,0xE01B6,0xE01B7,0xE01B8,0xE01B9,0xE01BA,0xE01BB,0xE01BC, + 0xE01BD,0xE01BE,0xE01BF,0xE01C0,0xE01C1,0xE01C2,0xE01C3,0xE01C4, + 0xE01C5,0xE01C6,0xE01C7,0xE01C8,0xE01C9,0xE01CA,0xE01CB,0xE01CC, + 0xE01CD,0xE01CE,0xE01CF,0xE01D0,0xE01D1,0xE01D2,0xE01D3,0xE01D4, + 0xE01D5,0xE01D6,0xE01D7,0xE01D8,0xE01D9,0xE01DA,0xE01DB,0xE01DC, + 0xE01DD,0xE01DE,0xE01DF,0xE01E0,0xE01E1,0xE01E2,0xE01E3,0xE01E4, + 0xE01E5,0xE01E6,0xE01E7,0xE01E8,0xE01E9,0xE01EA,0xE01EB,0xE01EC, + 0xE01ED,0xE01EE,0xE01EF, +}; + +static int unicodeCombiningCharTableSize = sizeof(unicodeCombiningCharTable) / sizeof(unicodeCombiningCharTable[0]); + +inline int unicodeIsCombiningChar(unsigned long cp) +{ + int i; + for (i = 0; i < unicodeCombiningCharTableSize; i++) { + if (unicodeCombiningCharTable[i] == cp) { + return 1; + } + } + return 0; +} + +/* Get length of previous UTF8 character + */ +inline int unicodePrevUTF8CharLen(char* buf, int pos) +{ + int end = pos--; + while (pos >= 0 && ((unsigned char)buf[pos] & 0xC0) == 0x80) { + pos--; + } + return end - pos; +} + +/* Get length of previous UTF8 character + */ +inline int unicodeUTF8CharLen(char* buf, int buf_len, int pos) +{ + if (pos == buf_len) { return 0; } + unsigned char ch = buf[pos]; + if (ch < 0x80) { return 1; } + else if (ch < 0xE0) { return 2; } + else if (ch < 0xF0) { return 3; } + else { return 4; } +} + +/* Convert UTF8 to Unicode code point + */ +inline int unicodeUTF8CharToCodePoint( + const char* buf, + int len, + int* cp) +{ + if (len) { + unsigned char byte = buf[0]; + if ((byte & 0x80) == 0) { + *cp = byte; + return 1; + } else if ((byte & 0xE0) == 0xC0) { + if (len >= 2) { + *cp = (((unsigned long)(buf[0] & 0x1F)) << 6) | + ((unsigned long)(buf[1] & 0x3F)); + return 2; + } + } else if ((byte & 0xF0) == 0xE0) { + if (len >= 3) { + *cp = (((unsigned long)(buf[0] & 0x0F)) << 12) | + (((unsigned long)(buf[1] & 0x3F)) << 6) | + ((unsigned long)(buf[2] & 0x3F)); + return 3; + } + } else if ((byte & 0xF8) == 0xF0) { + if (len >= 4) { + *cp = (((unsigned long)(buf[0] & 0x07)) << 18) | + (((unsigned long)(buf[1] & 0x3F)) << 12) | + (((unsigned long)(buf[2] & 0x3F)) << 6) | + ((unsigned long)(buf[3] & 0x3F)); + return 4; + } + } + } + return 0; +} + +/* Get length of grapheme + */ +inline int unicodeGraphemeLen(char* buf, int buf_len, int pos) +{ + if (pos == buf_len) { + return 0; + } + int beg = pos; + pos += unicodeUTF8CharLen(buf, buf_len, pos); + while (pos < buf_len) { + int len = unicodeUTF8CharLen(buf, buf_len, pos); + int cp = 0; + unicodeUTF8CharToCodePoint(buf + pos, len, &cp); + if (!unicodeIsCombiningChar(cp)) { + return pos - beg; + } + pos += len; + } + return pos - beg; +} + +/* Get length of previous grapheme + */ +inline int unicodePrevGraphemeLen(char* buf, int pos) +{ + if (pos == 0) { + return 0; + } + int end = pos; + while (pos > 0) { + int len = unicodePrevUTF8CharLen(buf, pos); + pos -= len; + int cp = 0; + unicodeUTF8CharToCodePoint(buf + pos, len, &cp); + if (!unicodeIsCombiningChar(cp)) { + return end - pos; + } + } + return 0; +} + +inline int isAnsiEscape(const char* buf, int buf_len, int* len) +{ + if (buf_len > 2 && !memcmp("\033[", buf, 2)) { + int off = 2; + while (off < buf_len) { + switch (buf[off++]) { + case 'A': case 'B': case 'C': case 'D': + case 'E': case 'F': case 'G': case 'H': + case 'J': case 'K': case 'S': case 'T': + case 'f': case 'm': + *len = off; + return 1; + } + } + } + return 0; +} + +/* Get column position for the single line mode. + */ +inline int unicodeColumnPos(const char* buf, int buf_len) +{ + int ret = 0; + + int off = 0; + while (off < buf_len) { + int len; + if (isAnsiEscape(buf + off, buf_len - off, &len)) { + off += len; + continue; + } + + int cp = 0; + len = unicodeUTF8CharToCodePoint(buf + off, buf_len - off, &cp); + + if (!unicodeIsCombiningChar(cp)) { + ret += unicodeIsWideChar(cp) ? 2 : 1; + } + + off += len; + } + + return ret; +} + +/* Get column position for the multi line mode. + */ +inline int unicodeColumnPosForMultiLine(char* buf, int buf_len, int pos, int cols, int ini_pos) +{ + int ret = 0; + int colwid = ini_pos; + + int off = 0; + while (off < buf_len) { + int cp = 0; + int len = unicodeUTF8CharToCodePoint(buf + off, buf_len - off, &cp); + + int wid = 0; + if (!unicodeIsCombiningChar(cp)) { + wid = unicodeIsWideChar(cp) ? 2 : 1; + } + + int dif = (int)(colwid + wid) - (int)cols; + if (dif > 0) { + ret += dif; + colwid = wid; + } else if (dif == 0) { + colwid = 0; + } else { + colwid += wid; + } + + if (off >= pos) { + break; + } + + off += len; + ret += wid; + } + + return ret; +} + +/* Read UTF8 character from file. + */ +inline int unicodeReadUTF8Char(int fd, char* buf, int* cp) +{ + int nread = read(fd,&buf[0],1); + + if (nread <= 0) { return nread; } + + unsigned char byte = buf[0]; + + if ((byte & 0x80) == 0) { + ; + } else if ((byte & 0xE0) == 0xC0) { + nread = read(fd,&buf[1],1); + if (nread <= 0) { return nread; } + } else if ((byte & 0xF0) == 0xE0) { + nread = read(fd,&buf[1],2); + if (nread <= 0) { return nread; } + } else if ((byte & 0xF8) == 0xF0) { + nread = read(fd,&buf[1],3); + if (nread <= 0) { return nread; } + } else { + return -1; + } + + return unicodeUTF8CharToCodePoint(buf, 4, cp); +} + +/* ======================= Low level terminal handling ====================== */ + +/* Return true if the terminal name is in the list of terminals we know are + * not able to understand basic escape sequences. */ +inline bool isUnsupportedTerm(void) { + static const char *unsupported_term[] = {"dumb","cons25","emacs",NULL}; +#ifndef _WIN32 + char *term = getenv("TERM"); + int j; + + if (term == NULL) return false; + + std::string sterm(term); + // https://stackoverflow.com/a/313990 + std::transform(sterm.begin(), sterm.end(), sterm.begin(), [](unsigned char c){ return std::tolower(c); }); + for (j = 0; unsupported_term[j]; j++) { + std::string uterm(unsupported_term[j]); + // https://stackoverflow.com/a/313990 + std::transform(uterm.begin(), uterm.end(), uterm.begin(), [](unsigned char c){ return std::tolower(c); }); + if (uterm == sterm) + return true; + } +#endif + return false; +} + +/* Raw mode: 1960 magic shit. */ +inline bool enableRawMode(int fd) { +#ifndef _WIN32 + struct termios raw; + + if (!isatty(STDIN_FILENO)) goto fatal; + if (!atexit_registered) { + atexit(linenoiseAtExit); + atexit_registered = true; + } + if (tcgetattr(fd,&orig_termios) == -1) goto fatal; + + raw = orig_termios; /* modify the original mode */ + /* input modes: no break, no CR to NL, no parity check, no strip char, + * no start/stop output control. */ + raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON); + /* output modes - disable post processing */ + // NOTE: Multithreaded issue #20 (https://github.com/yhirose/cpp-linenoise/issues/20) + // raw.c_oflag &= ~(OPOST); + /* control modes - set 8 bit chars */ + raw.c_cflag |= (CS8); + /* local modes - echoing off, canonical off, no extended functions, + * no signal chars (^Z,^C) */ + raw.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG); + /* control chars - set return condition: min number of bytes and timer. + * We want read to return every single byte, without timeout. */ + raw.c_cc[VMIN] = 1; raw.c_cc[VTIME] = 0; /* 1 byte, no timer */ + + /* put terminal in raw mode after flushing */ + if (tcsetattr(fd,TCSAFLUSH,&raw) < 0) goto fatal; + rawmode = true; +#else + if (!atexit_registered) { + /* Cleanup them at exit */ + atexit(linenoiseAtExit); + atexit_registered = true; + + /* Init windows console handles only once */ + hOut = GetStdHandle(STD_OUTPUT_HANDLE); + if (hOut==INVALID_HANDLE_VALUE) goto fatal; + } + + DWORD consolemodeOut; + if (!GetConsoleMode(hOut, &consolemodeOut)) { + CloseHandle(hOut); + errno = ENOTTY; + return false; + }; + + hIn = GetStdHandle(STD_INPUT_HANDLE); + if (hIn == INVALID_HANDLE_VALUE) { + CloseHandle(hOut); + errno = ENOTTY; + return false; + } + + GetConsoleMode(hIn, &consolemodeIn); + /* Enable raw mode */ + SetConsoleMode(hIn, consolemodeIn & ~ENABLE_PROCESSED_INPUT); + + rawmode = true; +#endif + return true; + +fatal: + errno = ENOTTY; + return false; +} + +inline void disableRawMode(int fd) { +#ifdef _WIN32 + if (consolemodeIn) { + SetConsoleMode(hIn, consolemodeIn); + consolemodeIn = 0; + } + rawmode = false; +#else + /* Don't even check the return value as it's too late. */ + if (rawmode && tcsetattr(fd,TCSAFLUSH,&orig_termios) != -1) + rawmode = false; +#endif +} + +/* Use the ESC [6n escape sequence to query the horizontal cursor position + * and return it. On error -1 is returned, on success the position of the + * cursor. */ +inline int getCursorPosition(int ifd, int ofd) { + char buf[32]; + int cols, rows; + unsigned int i = 0; + + /* Report cursor location */ + if (write(ofd, "\x1b[6n", 4) != 4) return -1; + + /* Read the response: ESC [ rows ; cols R */ + while (i < sizeof(buf)-1) { + if (read(ifd,buf+i,1) != 1) break; + if (buf[i] == 'R') break; + i++; + } + buf[i] = '\0'; + + /* Parse it. */ + if (buf[0] != ESC || buf[1] != '[') return -1; + if (sscanf(buf+2,"%d;%d",&rows,&cols) != 2) return -1; + return cols; +} + +/* Try to get the number of columns in the current terminal, or assume 80 + * if it fails. */ +inline int getColumns(int ifd, int ofd) { +#ifdef _WIN32 + CONSOLE_SCREEN_BUFFER_INFO b; + + if (!GetConsoleScreenBufferInfo(hOut, &b)) return 80; + return b.srWindow.Right - b.srWindow.Left; +#else + struct winsize ws; + + if (ioctl(1, TIOCGWINSZ, &ws) == -1 || ws.ws_col == 0) { + /* ioctl() failed. Try to query the terminal itself. */ + int start, cols; + + /* Get the initial position so we can restore it later. */ + start = getCursorPosition(ifd,ofd); + if (start == -1) goto failed; + + /* Go to right margin and get position. */ + if (write(ofd,"\x1b[999C",6) != 6) goto failed; + cols = getCursorPosition(ifd,ofd); + if (cols == -1) goto failed; + + /* Restore position. */ + if (cols > start) { + char seq[32]; + snprintf(seq,32,"\x1b[%dD",cols-start); + if (write(ofd,seq,strlen(seq)) == -1) { + /* Can't recover... */ + } + } + return cols; + } else { + return ws.ws_col; + } + +failed: + return 80; +#endif +} + +/* Clear the screen. Used to handle ctrl+l */ +inline void linenoiseClearScreen(void) { + if (write(STDOUT_FILENO,"\x1b[H\x1b[2J",7) <= 0) { + /* nothing to do, just to avoid warning. */ + } +} + +/* Temporarily clear the line from the screen, + * without resetting its state. Used for + * temporarily clearing prompt and input while + * printing other content. */ +inline void linenoiseWipeLine() { + // Clear line + if (write(STDOUT_FILENO, "\33[2K", 4) < 0) { + /* nothing to do, just to avoid warning. */ + } + // Move cursor to the left + if (write(STDOUT_FILENO, "\r", 1) < 0) { + /* nothing to do, just to avoid warning. */ + } +} + +/* Beep, used for completion when there is nothing to complete or when all + * the choices were already shown. */ +inline void linenoiseBeep(void) { + fprintf(stderr, "\x7"); + fflush(stderr); +} + +/* ============================== Completion ================================ */ + +/* This is an helper function for Edit() and is called when the + * user types the key in order to complete the string currently in the + * input. + * + * The state of the editing is encapsulated into the pointed linenoiseState + * structure as described in the structure definition. */ +inline int linenoiseState::completeLine(char *cbuf, int *c) { + std::vector lc; + int nread = 0, nwritten; + *c = 0; + + completionCallback(buf_,lc); + if (lc.empty()) { + linenoiseBeep(); + } else { + int stop = 0, i = 0; + + while(!stop) { + /* Show completion or original buffer */ + if (i < static_cast(lc.size())) { + int old_len = len_; + int old_pos = pos_; + char *old_buf = buf_; + len_ = pos_ = static_cast(lc[i].size()); + buf_ = &lc[i][0]; + RefreshLine(); + len_ = old_len; + pos_ = old_pos; + buf_ = old_buf; + } else { + RefreshLine(); + } + + //nread = read(ifd_,&c,1); +#ifdef _WIN32 + nread = win32read(c); + if (nread == 1) { + cbuf[0] = *c; + } +#else + nread = unicodeReadUTF8Char(ifd_,cbuf,c); +#endif + if (nread <= 0) { + *c = -1; + return nread; + } + + switch(*c) { + case 9: /* tab */ + i = (i+1) % (lc.size()+1); + if (i == static_cast(lc.size())) linenoiseBeep(); + break; + case 27: /* escape */ + /* Re-show original buffer */ + if (i < static_cast(lc.size())) RefreshLine(); + stop = 1; + break; + default: + /* Update buffer and return */ + if (i < static_cast(lc.size())) { + nwritten = snprintf(buf_,buf_len_,"%s",&lc[i][0]); + len_ = pos_ = nwritten; + } + stop = 1; + break; + } + } + } + + return nread; +} + +/* =========================== Line editing ================================= */ + +/* Single line low level line refresh. + * + * Rewrite the currently edited line accordingly to the buffer content, + * cursor position, and number of columns of the terminal. */ +inline void linenoiseState::refreshSingleLine() { + char seq[64]; + int pcolwid = unicodeColumnPos(prompt_.c_str(), static_cast(prompt_.length())); + int fd = ofd_; + std::string ab; + + if (cols_ <= 0) + cols_ = getColumns(ifd_, ofd_); + + while((pcolwid+unicodeColumnPos(buf_, pos_)) >= cols_) { + int glen = unicodeGraphemeLen(buf_, len_, 0); + buf_ += glen; + len_ -= glen; + pos_ -= glen; + } + while (pcolwid+unicodeColumnPos(buf_, len_) > cols_) { + len_ -= unicodePrevGraphemeLen(buf_, len_); + } + + /* Cursor to left edge */ + snprintf(seq,64,"\r"); + ab += seq; + /* Write the prompt and the current buffer content */ + ab += prompt_; + ab.append(buf_, len_); + /* Erase to right */ + snprintf(seq,64,"\x1b[0K"); + ab += seq; + /* Move cursor to original position. */ + snprintf(seq,64,"\r\x1b[%dC", (int)(unicodeColumnPos(buf_, pos_)+pcolwid)); + ab += seq; + if (write(fd,ab.c_str(), static_cast(ab.length())) == -1) {} /* Can't recover from write error. */ +} + +/* Multi line low level line refresh. + * + * Rewrite the currently edited line accordingly to the buffer content, + * cursor position, and number of columns of the terminal. */ +inline void linenoiseState::refreshMultiLine() { + if (cols_ <= 0) + cols_ = getColumns(ifd_, ofd_); + + char seq[64]; + int pcolwid = unicodeColumnPos(prompt_.c_str(), static_cast(prompt_.length())); + int colpos = unicodeColumnPosForMultiLine(buf_, len_, len_, cols_, pcolwid); + int colpos2; /* cursor column position. */ + int rows = (pcolwid+colpos+cols_-1)/cols_; /* rows used by current buf. */ + int rpos = (pcolwid+oldcolpos_+cols_)/cols_; /* cursor relative row. */ + int rpos2; /* rpos after refresh. */ + int col; /* column position, zero-based. */ + int old_rows = (int)maxrows_; + int fd = ofd_; + std::string ab; + + /* Update maxrows if needed. */ + if (rows > (int)maxrows_) maxrows_ = rows; + + /* First step: clear all the lines used before. To do so start by + * going to the last row. */ + if (old_rows-rpos > 0) { + snprintf(seq,64,"\x1b[%dB", old_rows-rpos); + ab += seq; + } + + /* Now for every row clear it, go up. */ + for (int j = 0; j < old_rows-1; j++) { + snprintf(seq,64,"\r\x1b[0K\x1b[1A"); + ab += seq; + } + + /* Clean the top line. */ + snprintf(seq,64,"\r\x1b[0K"); + ab += seq; + + /* Write the prompt and the current buffer content */ + ab += prompt_; + ab.append(buf_, len_); + + /* Get text width to cursor position */ + colpos2 = unicodeColumnPosForMultiLine(buf_, len_, pos_, cols_, pcolwid); + + /* If we are at the very end of the screen with our prompt, we need to + * emit a newline and move the prompt to the first column. */ + if (pos_ && + pos_ == len_ && + (colpos2+pcolwid) % cols_ == 0) + { + ab += "\n"; + snprintf(seq,64,"\r"); + ab += seq; + rows++; + if (rows > (int)maxrows_) maxrows_ = rows; + } + + /* Move cursor to right position. */ + rpos2 = (pcolwid+colpos2+cols_)/cols_; /* current cursor relative row. */ + + /* Go up till we reach the expected position. */ + if (rows-rpos2 > 0) { + snprintf(seq,64,"\x1b[%dA", rows-rpos2); + ab += seq; + } + + /* Set column. */ + col = (pcolwid + colpos2) % cols_; + if (col) + snprintf(seq,64,"\r\x1b[%dC", col); + else + snprintf(seq,64,"\r"); + ab += seq; + + oldcolpos_ = colpos2; + + if (write(fd,ab.c_str(), static_cast(ab.length())) == -1) {} /* Can't recover from write error. */ +} + +/* Calls the two low level functions refreshSingleLine() or + * refreshMultiLine() according to the selected mode. */ +inline void linenoiseState::RefreshLine() { + mutex_.lock(); + if (mlmode_) + refreshMultiLine(); + else + refreshSingleLine(); + mutex_.unlock(); +} + +inline void linenoiseState::WipeLine() { linenoiseWipeLine(); } + +inline void linenoiseState::ClearScreen() { linenoiseClearScreen(); } + +inline void linenoiseState::SetPrompt(const char *p) { prompt_ = std::string(p); } +inline void linenoiseState::SetPrompt(std::string &p) { prompt_ = p; } + +/* Insert the character 'c' at cursor current position. + * + * On error writing to the terminal -1 is returned, otherwise 0. */ +inline int linenoiseState::EditInsert(const char* cbuf, int clen) { + if (len_ < buf_len_) { + if (len_ == pos_) { + memcpy(&buf_[pos_],cbuf,clen); + pos_+=clen; + len_+=clen;; + buf_[len_] = '\0'; + if ((!mlmode_ && unicodeColumnPos(prompt_.c_str(), static_cast(prompt_.length()))+unicodeColumnPos(buf_,len_) < cols_) /* || mlmode_ */) { + /* Avoid a full update of the line in the + * trivial case. */ + if (write(ofd_,cbuf,clen) == -1) return -1; + } else { + RefreshLine(); + } + } else { + memmove(buf_+pos_+clen,buf_+pos_,len_-pos_); + memcpy(&buf_[pos_],cbuf,clen); + pos_+=clen; + len_+=clen; + buf_[len_] = '\0'; + RefreshLine(); + } + } + return 0; +} + +/* Move cursor on the left. */ +inline void linenoiseState::EditMoveLeft() { + if (pos_ > 0) { + pos_ -= unicodePrevGraphemeLen(buf_, pos_); + RefreshLine(); + } +} + +/* Move cursor on the right. */ +inline void linenoiseState::EditMoveRight() { + if (pos_ != len_) { + pos_ += unicodeGraphemeLen(buf_, len_, pos_); + RefreshLine(); + } +} + +/* Move cursor to the start of the line. */ +inline void linenoiseState::EditMoveHome() { + if (pos_ != 0) { + pos_ = 0; + RefreshLine(); + } +} + +/* Move cursor to the end of the line. */ +inline void linenoiseState::EditMoveEnd() { + if (pos_ != len_) { + pos_ = len_; + RefreshLine(); + } +} + +/* Substitute the currently edited line with the next or previous history + * entry as specified by 'dir'. */ +#define LINENOISE_HISTORY_NEXT 0 +#define LINENOISE_HISTORY_PREV 1 +inline void linenoiseState::EditHistoryNext(int dir) { + if (history_.size() > 1) { + /* Update the current history entry before to + * overwrite it with the next one. */ + history_[history_.size() - 1 - history_index_] = buf_; + /* Show the new entry */ + history_index_ += (dir == LINENOISE_HISTORY_PREV) ? 1 : -1; + if (history_index_ < 0) { + history_index_ = 0; + return; + } else if (history_index_ >= (int)history_.size()) { + history_index_ = static_cast(history_.size())-1; + return; + } + memset(buf_, 0, buf_len_); + strcpy(buf_,history_[history_.size() - 1 - history_index_].c_str()); + len_ = pos_ = static_cast(strlen(buf_)); + RefreshLine(); + } +} + +/* Delete the character at the right of the cursor without altering the cursor + * position. Basically this is what happens with the "Delete" keyboard key. */ +inline void linenoiseState::EditDelete() { + if (len_ > 0 && pos_ < len_) { + int glen = unicodeGraphemeLen(buf_,len_,pos_); + memmove(buf_+pos_,buf_+pos_+glen,len_-pos_-glen); + len_-=glen; + buf_[len_] = '\0'; + RefreshLine(); + } +} + +/* Backspace implementation. */ +inline void linenoiseState::EditBackspace() { + if (pos_ > 0 && len_ > 0) { + int glen = unicodePrevGraphemeLen(buf_,pos_); + memmove(buf_+pos_-glen,buf_+pos_,len_-pos_); + pos_-=glen; + len_-=glen; + buf_[len_] = '\0'; + RefreshLine(); + } +} + +/* Delete the previous word, maintaining the cursor at the start of the + * current word. */ +inline void linenoiseState::EditDeletePrevWord() { + int old_pos = pos_; + int diff; + + while (pos_ > 0 && buf_[pos_-1] == ' ') + pos_--; + while (pos_ > 0 && buf_[pos_-1] != ' ') + pos_--; + diff = old_pos - pos_; + memmove(buf_+pos_,buf_+old_pos,len_-old_pos+1); + len_ -= diff; + RefreshLine(); +} + +/* This function is the core of the line editing capability of linenoise. + * It expects 'fd' to be already in "raw mode" so that every key pressed + * will be returned ASAP to read(). + * + * The resulting string is put into 'buf' when the user type enter, or + * when ctrl+d is typed. + * + * The function returns the length of the current buffer. */ +inline int linenoiseState::Edit() +{ + /* The latest history entry is always our current buffer, that + * initially is just an empty string. */ + AddHistory(""); + + if (write(ofd_, prompt_.c_str(), static_cast(prompt_.length())) == -1) return -1; + while(1) { + int c; + char cbuf[4]; + int nread; + char seq[3]; + +#ifdef _WIN32 + nread = win32read(&c); + if (nread == 1) { + cbuf[0] = c; + } +#else + nread = unicodeReadUTF8Char(ifd_,cbuf,&c); +#endif + if (nread <= 0) return (int)len_; + + /* Only autocomplete when the callback is set. It returns < 0 when + * there was an error reading from fd. Otherwise it will return the + * character that should be handled next. */ + if (c == 9 && completionCallback != NULL) { + nread = completeLine(cbuf,&c); + /* Return on errors */ + if (c < 0) return len_; + /* Read next character when 0 */ + if (c == 0) continue; + } + + switch(c) { + case ENTER: /* enter */ + if (!history_.empty()) history_.pop_back(); + if (mlmode_) EditMoveEnd(); + return (int)len_; + case CTRL_C: /* ctrl-c */ + errno = EAGAIN; + return -1; + case BACKSPACE: /* backspace */ + case 8: /* ctrl-h */ + EditBackspace(); + break; + case CTRL_D: /* ctrl-d, remove char at right of cursor, or if the + line is empty, act as end-of-file. */ + if (len_ > 0) { + EditDelete(); + } else { + history_.pop_back(); + return -1; + } + break; + case CTRL_T: /* ctrl-t, swaps current character with previous. */ + if (pos_ > 0 && pos_ < len_) { + char aux = wbuf_[pos_-1]; + wbuf_[pos_-1] = wbuf_[pos_]; + wbuf_[pos_] = aux; + if (pos_ != len_-1) pos_++; + RefreshLine(); + } + break; + case CTRL_B: /* ctrl-b */ + EditMoveLeft(); + break; + case CTRL_F: /* ctrl-f */ + EditMoveRight(); + break; + case CTRL_P: /* ctrl-p */ + EditHistoryNext(LINENOISE_HISTORY_PREV); + break; + case CTRL_N: /* ctrl-n */ + EditHistoryNext(LINENOISE_HISTORY_NEXT); + break; + case ESC: /* escape sequence */ + /* Read the next two bytes representing the escape sequence. + * Use two calls to handle slow terminals returning the two + * chars at different times. */ + if (read(ifd_,seq,1) == -1) break; + if (read(ifd_,seq+1,1) == -1) break; + + /* ESC [ sequences. */ + if (seq[0] == '[') { + if (seq[1] >= '0' && seq[1] <= '9') { + /* Extended escape, read additional byte. */ + if (read(ifd_,seq+2,1) == -1) break; + if (seq[2] == '~') { + switch(seq[1]) { + case '3': /* Delete key. */ + EditDelete(); + break; + } + } + } else { + switch(seq[1]) { + case 'A': /* Up */ + EditHistoryNext(LINENOISE_HISTORY_PREV); + break; + case 'B': /* Down */ + EditHistoryNext(LINENOISE_HISTORY_NEXT); + break; + case 'C': /* Right */ + EditMoveRight(); + break; + case 'D': /* Left */ + EditMoveLeft(); + break; + case 'H': /* Home */ + EditMoveHome(); + break; + case 'F': /* End*/ + EditMoveEnd(); + break; + } + } + } + + /* ESC O sequences. */ + else if (seq[0] == 'O') { + switch(seq[1]) { + case 'H': /* Home */ + EditMoveHome(); + break; + case 'F': /* End*/ + EditMoveEnd(); + break; + } + } + break; + default: + if (EditInsert(cbuf,nread)) return -1; + break; + case CTRL_U: /* Ctrl+u, delete the whole line. */ + wbuf_[0] = '\0'; + pos_ = len_ = 0; + RefreshLine(); + break; + case CTRL_K: /* Ctrl+k, delete from current to end of line. */ + wbuf_[pos_] = '\0'; + len_ = pos_; + RefreshLine(); + break; + case CTRL_A: /* Ctrl+a, go to the start of the line */ + EditMoveHome(); + break; + case CTRL_E: /* ctrl+e, go to the end of the line */ + EditMoveEnd(); + break; + case CTRL_L: /* ctrl+l, clear screen */ + linenoiseClearScreen(); + RefreshLine(); + break; + case CTRL_W: /* ctrl+w, delete previous word */ + EditDeletePrevWord(); + break; + } + } + return len_; +} + +/* This function calls the line editing function Edit() using + * the STDIN file descriptor set in raw mode. */ +inline bool linenoiseState::Raw(std::string& line) { + bool quit = false; + + if (!isatty(STDIN_FILENO)) { + /* Not a tty: read from file / pipe. */ + int c; + while ((c = getc(stdin)) != EOF) { + if (c == '\r') // CRLF -> LF + continue; + if (c == '\n' || c == '\r') // send command + break; + + line += c; + } + if (!line.length()) + quit = true; + + } else { + /* Interactive editing. */ + if (enableRawMode(STDIN_FILENO) == false) { + return quit; + } + + /* Buffer starts empty. Since we're potentially + * reusing the state, we need to reset these. */ + pos_ = 0; + len_ = 0; + buf_[0] = '\0'; + wbuf_[0] = '\0'; + + auto count = Edit(); + if (count == -1) { + quit = true; + } else { + line.assign(buf_, count); + } + + disableRawMode(STDIN_FILENO); + printf("\n"); + } + return quit; +} + +inline linenoiseState::linenoiseState(const char *prompt_str, int stdin_fd, int stdout_fd) { + /* Populate the linenoise state that we pass to functions implementing + * specific editing functionalities. */ + ifd_ = stdin_fd; + ofd_ = stdout_fd; + buf_ = wbuf_; + std::string p = (prompt_str) ? std::string(prompt_str) : std::string("> "); + SetPrompt(p); + + /* Buffer starts empty. */ + buf_[0] = '\0'; + buf_len_--; /* Make sure there is always space for the nulterm */ +} + +inline void linenoiseState::EnableMultiLine() { mlmode_ = true; } +inline void linenoiseState::DisableMultiLine() { mlmode_ = false; } + +/* The high level function that is the main API of the linenoise library. + * This function checks if the terminal has basic capabilities, just checking + * for a blacklist of stupid terminals, and later either calls the line + * editing function or uses dummy fgets() so that you will be able to type + * something even in the most desperate of the conditions. */ +inline bool linenoiseState::Readline(std::string& line) { + if (isUnsupportedTerm()) { + printf("%s", prompt_.c_str()); + fflush(stdout); + std::getline(std::cin, line); + return false; + } else { + return Raw(line); + } + + return false; +} + +inline std::string linenoiseState::Readline(bool& quit) { + std::string line; + quit = Readline(line); + return line; +} + +inline std::string linenoiseState::Readline() { + bool quit; // dummy + return Readline(quit); +} + +/* ================================ History ================================= */ + +/* At exit we'll try to fix the terminal to the initial conditions. */ +inline void linenoiseAtExit(void) { + disableRawMode(STDIN_FILENO); + + // If we're using the global, clean up + if (lglobal) + delete lglobal; + lglobal = NULL; +} + +/* This is the API call to add a new entry in the linenoise history. + * It uses a fixed array of char pointers that are shifted (memmoved) + * when the history max length is reached in order to remove the older + * entry and make room for the new one, so it is not exactly suitable for huge + * histories, but will work well for a few hundred of entries. + * + * Using a circular buffer is smarter, but a bit more complex to handle. */ +inline bool linenoiseState::AddHistory(const char* line) { + if (history_max_len_ == 0) return false; + + /* Don't add duplicated lines. */ + if (!history_.empty() && history_.back() == line) return false; + + /* If we reached the max length, remove the older line. */ + if (history_.size() == history_max_len_) { + history_.erase(history_.begin()); + } + history_.push_back(line); + + return true; +} + +/* Set the maximum length for the history. This function can be called even + * if there is already some history, the function will make sure to retain + * just the latest 'len' elements if the new history length value is smaller + * than the amount of items already inside the history. */ +inline bool linenoiseState::SetHistoryMaxLen(size_t mlen) { + if (mlen < 1) return false; + history_max_len_ = mlen; + if (mlen < history_.size()) { + history_.resize(mlen); + } + return true; +} + +/* Save the history in the specified file. On success *true* is returned + * otherwise *false* is returned. */ +inline bool linenoiseState::SaveHistory(const char* path) { + std::ofstream f(path); // TODO: need 'std::ios::binary'? + if (!f) return false; + for (const auto& h: history_) { + f << h << std::endl; + } + return true; +} + +/* Load the history from the specified file. If the file does not exist + * zero is returned and no operation is performed. + * + * If the file exists and the operation succeeded *true* is returned, otherwise + * on error *false* is returned. */ +inline bool linenoiseState::LoadHistory(const char* path) { + std::ifstream f(path); + if (!f) return false; + std::string line; + while (std::getline(f, line)) { + AddHistory(line.c_str()); + } + return true; +} + + + +/* Function style interface */ +inline void SetCompletionCallback(CompletionCallback fn){ + if (!lglobal) + lglobal = new linenoiseState(); + lglobal->SetCompletionCallback(fn); +}; +inline void SetMultiLine(bool ml){ + if (!lglobal) + lglobal = new linenoiseState(); + if (ml) { + lglobal->EnableMultiLine(); + } else { + lglobal->DisableMultiLine(); + } +}; +inline bool AddHistory(const char* line){ + if (!lglobal) + lglobal = new linenoiseState(); + return lglobal->AddHistory(line); +}; +inline bool SetHistoryMaxLen(size_t len){ + if (!lglobal) + lglobal = new linenoiseState(); + return lglobal->SetHistoryMaxLen(len); +}; +inline bool SaveHistory(const char* path){ + if (!lglobal) + lglobal = new linenoiseState(); + return lglobal->SaveHistory(path); +}; +inline bool LoadHistory(const char* path){ + if (!lglobal) + lglobal = new linenoiseState(); + return lglobal->LoadHistory(path); +}; +inline const std::vector& GetHistory(){ + if (!lglobal) + lglobal = new linenoiseState(); + return lglobal->GetHistory(); +}; +inline bool Readline(const char *prompt, std::string& line){ + if (!lglobal) + lglobal = new linenoiseState(); + lglobal->SetPrompt(prompt); + return lglobal->Readline(line); +}; +inline std::string Readline(const char *prompt, bool& quit){ + if (!lglobal) + lglobal = new linenoiseState(); + lglobal->SetPrompt(prompt); + std::string line; + quit = lglobal->Readline(line); + return line; +}; +inline std::string Readline(const char *prompt){ + bool quit; // dummy + return Readline(prompt, quit); +}; + + + +} // namespace linenoise + +#ifdef _WIN32 +#undef isatty +#undef write +#undef read +#pragma warning(pop) +#endif + +#endif /* __LINENOISE_HPP */