mirror of
https://github.com/ggml-org/llama.cpp.git
synced 2025-10-29 08:41:22 +00:00
8277a817f1
* utf-8 fix for windows stdin * Update common/console.cpp --------- Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
505 lines
16 KiB
C++
505 lines
16 KiB
C++
#include "console.h"
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#include <vector>
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#include <iostream>
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#if defined(_WIN32)
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#define WIN32_LEAN_AND_MEAN
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#ifndef NOMINMAX
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#define NOMINMAX
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#endif
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#include <windows.h>
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#include <fcntl.h>
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#include <io.h>
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#ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING
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#define ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x0004
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#endif
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#else
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#include <climits>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <wchar.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <signal.h>
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#include <termios.h>
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#endif
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#define ANSI_COLOR_RED "\x1b[31m"
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#define ANSI_COLOR_GREEN "\x1b[32m"
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#define ANSI_COLOR_YELLOW "\x1b[33m"
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#define ANSI_COLOR_BLUE "\x1b[34m"
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#define ANSI_COLOR_MAGENTA "\x1b[35m"
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#define ANSI_COLOR_CYAN "\x1b[36m"
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#define ANSI_COLOR_RESET "\x1b[0m"
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#define ANSI_BOLD "\x1b[1m"
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namespace console {
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//
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// Console state
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//
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static bool advanced_display = false;
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static bool simple_io = true;
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static display_t current_display = reset;
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static FILE* out = stdout;
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#if defined (_WIN32)
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static void* hConsole;
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#else
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static FILE* tty = nullptr;
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static termios initial_state;
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#endif
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//
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// Init and cleanup
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//
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void init(bool use_simple_io, bool use_advanced_display) {
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advanced_display = use_advanced_display;
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simple_io = use_simple_io;
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#if defined(_WIN32)
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// Windows-specific console initialization
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DWORD dwMode = 0;
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hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
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if (hConsole == INVALID_HANDLE_VALUE || !GetConsoleMode(hConsole, &dwMode)) {
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hConsole = GetStdHandle(STD_ERROR_HANDLE);
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if (hConsole != INVALID_HANDLE_VALUE && (!GetConsoleMode(hConsole, &dwMode))) {
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hConsole = nullptr;
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simple_io = true;
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}
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}
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if (hConsole) {
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// Check conditions combined to reduce nesting
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if (advanced_display && !(dwMode & ENABLE_VIRTUAL_TERMINAL_PROCESSING) &&
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!SetConsoleMode(hConsole, dwMode | ENABLE_VIRTUAL_TERMINAL_PROCESSING)) {
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advanced_display = false;
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}
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// Set console output codepage to UTF8
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SetConsoleOutputCP(CP_UTF8);
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}
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HANDLE hConIn = GetStdHandle(STD_INPUT_HANDLE);
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if (hConIn != INVALID_HANDLE_VALUE && GetConsoleMode(hConIn, &dwMode)) {
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// Set console input codepage to UTF16
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_setmode(_fileno(stdin), _O_WTEXT);
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// Set ICANON (ENABLE_LINE_INPUT) and ECHO (ENABLE_ECHO_INPUT)
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if (simple_io) {
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dwMode |= ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT;
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} else {
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dwMode &= ~(ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT);
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}
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if (!SetConsoleMode(hConIn, dwMode)) {
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simple_io = true;
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}
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}
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if (simple_io) {
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_setmode(_fileno(stdin), _O_U8TEXT);
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}
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#else
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// POSIX-specific console initialization
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if (!simple_io) {
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struct termios new_termios;
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tcgetattr(STDIN_FILENO, &initial_state);
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new_termios = initial_state;
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new_termios.c_lflag &= ~(ICANON | ECHO);
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new_termios.c_cc[VMIN] = 1;
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new_termios.c_cc[VTIME] = 0;
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tcsetattr(STDIN_FILENO, TCSANOW, &new_termios);
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tty = fopen("/dev/tty", "w+");
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if (tty != nullptr) {
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out = tty;
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}
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}
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setlocale(LC_ALL, "");
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#endif
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}
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void cleanup() {
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// Reset console display
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set_display(reset);
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#if !defined(_WIN32)
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// Restore settings on POSIX systems
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if (!simple_io) {
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if (tty != nullptr) {
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out = stdout;
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fclose(tty);
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tty = nullptr;
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}
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tcsetattr(STDIN_FILENO, TCSANOW, &initial_state);
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}
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#endif
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}
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//
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// Display and IO
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//
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// Keep track of current display and only emit ANSI code if it changes
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void set_display(display_t display) {
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if (advanced_display && current_display != display) {
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fflush(stdout);
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switch(display) {
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case reset:
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fprintf(out, ANSI_COLOR_RESET);
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break;
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case prompt:
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fprintf(out, ANSI_COLOR_YELLOW);
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break;
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case user_input:
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fprintf(out, ANSI_BOLD ANSI_COLOR_GREEN);
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break;
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case error:
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fprintf(out, ANSI_BOLD ANSI_COLOR_RED);
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}
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current_display = display;
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fflush(out);
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}
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}
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static char32_t getchar32() {
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#if defined(_WIN32)
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HANDLE hConsole = GetStdHandle(STD_INPUT_HANDLE);
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wchar_t high_surrogate = 0;
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while (true) {
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INPUT_RECORD record;
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DWORD count;
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if (!ReadConsoleInputW(hConsole, &record, 1, &count) || count == 0) {
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return WEOF;
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}
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if (record.EventType == KEY_EVENT && record.Event.KeyEvent.bKeyDown) {
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wchar_t wc = record.Event.KeyEvent.uChar.UnicodeChar;
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if (wc == 0) {
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continue;
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}
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if ((wc >= 0xD800) && (wc <= 0xDBFF)) { // Check if wc is a high surrogate
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high_surrogate = wc;
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continue;
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}
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if ((wc >= 0xDC00) && (wc <= 0xDFFF)) { // Check if wc is a low surrogate
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if (high_surrogate != 0) { // Check if we have a high surrogate
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return ((high_surrogate - 0xD800) << 10) + (wc - 0xDC00) + 0x10000;
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}
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}
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high_surrogate = 0; // Reset the high surrogate
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return static_cast<char32_t>(wc);
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}
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}
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#else
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wchar_t wc = getwchar();
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if (static_cast<wint_t>(wc) == WEOF) {
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return WEOF;
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}
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#if WCHAR_MAX == 0xFFFF
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if ((wc >= 0xD800) && (wc <= 0xDBFF)) { // Check if wc is a high surrogate
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wchar_t low_surrogate = getwchar();
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if ((low_surrogate >= 0xDC00) && (low_surrogate <= 0xDFFF)) { // Check if the next wchar is a low surrogate
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return (static_cast<char32_t>(wc & 0x03FF) << 10) + (low_surrogate & 0x03FF) + 0x10000;
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}
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}
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if ((wc >= 0xD800) && (wc <= 0xDFFF)) { // Invalid surrogate pair
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return 0xFFFD; // Return the replacement character U+FFFD
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}
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#endif
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return static_cast<char32_t>(wc);
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#endif
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}
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static void pop_cursor() {
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#if defined(_WIN32)
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if (hConsole != NULL) {
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CONSOLE_SCREEN_BUFFER_INFO bufferInfo;
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GetConsoleScreenBufferInfo(hConsole, &bufferInfo);
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COORD newCursorPosition = bufferInfo.dwCursorPosition;
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if (newCursorPosition.X == 0) {
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newCursorPosition.X = bufferInfo.dwSize.X - 1;
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newCursorPosition.Y -= 1;
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} else {
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newCursorPosition.X -= 1;
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}
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SetConsoleCursorPosition(hConsole, newCursorPosition);
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return;
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}
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#endif
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putc('\b', out);
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}
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static int estimateWidth(char32_t codepoint) {
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#if defined(_WIN32)
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(void)codepoint;
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return 1;
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#else
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return wcwidth(codepoint);
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#endif
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}
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static int put_codepoint(const char* utf8_codepoint, size_t length, int expectedWidth) {
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#if defined(_WIN32)
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CONSOLE_SCREEN_BUFFER_INFO bufferInfo;
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if (!GetConsoleScreenBufferInfo(hConsole, &bufferInfo)) {
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// go with the default
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return expectedWidth;
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}
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COORD initialPosition = bufferInfo.dwCursorPosition;
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DWORD nNumberOfChars = length;
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WriteConsole(hConsole, utf8_codepoint, nNumberOfChars, &nNumberOfChars, NULL);
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CONSOLE_SCREEN_BUFFER_INFO newBufferInfo;
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GetConsoleScreenBufferInfo(hConsole, &newBufferInfo);
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// Figure out our real position if we're in the last column
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if (utf8_codepoint[0] != 0x09 && initialPosition.X == newBufferInfo.dwSize.X - 1) {
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DWORD nNumberOfChars;
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WriteConsole(hConsole, &" \b", 2, &nNumberOfChars, NULL);
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GetConsoleScreenBufferInfo(hConsole, &newBufferInfo);
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}
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int width = newBufferInfo.dwCursorPosition.X - initialPosition.X;
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if (width < 0) {
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width += newBufferInfo.dwSize.X;
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}
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return width;
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#else
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// We can trust expectedWidth if we've got one
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if (expectedWidth >= 0 || tty == nullptr) {
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fwrite(utf8_codepoint, length, 1, out);
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return expectedWidth;
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}
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fputs("\033[6n", tty); // Query cursor position
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int x1;
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int y1;
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int x2;
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int y2;
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int results = 0;
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results = fscanf(tty, "\033[%d;%dR", &y1, &x1);
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fwrite(utf8_codepoint, length, 1, tty);
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fputs("\033[6n", tty); // Query cursor position
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results += fscanf(tty, "\033[%d;%dR", &y2, &x2);
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if (results != 4) {
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return expectedWidth;
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}
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int width = x2 - x1;
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if (width < 0) {
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// Calculate the width considering text wrapping
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struct winsize w;
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ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
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width += w.ws_col;
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}
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return width;
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#endif
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}
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static void replace_last(char ch) {
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#if defined(_WIN32)
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pop_cursor();
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put_codepoint(&ch, 1, 1);
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#else
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fprintf(out, "\b%c", ch);
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#endif
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}
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static void append_utf8(char32_t ch, std::string & out) {
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if (ch <= 0x7F) {
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out.push_back(static_cast<unsigned char>(ch));
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} else if (ch <= 0x7FF) {
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out.push_back(static_cast<unsigned char>(0xC0 | ((ch >> 6) & 0x1F)));
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out.push_back(static_cast<unsigned char>(0x80 | (ch & 0x3F)));
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} else if (ch <= 0xFFFF) {
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out.push_back(static_cast<unsigned char>(0xE0 | ((ch >> 12) & 0x0F)));
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out.push_back(static_cast<unsigned char>(0x80 | ((ch >> 6) & 0x3F)));
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out.push_back(static_cast<unsigned char>(0x80 | (ch & 0x3F)));
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} else if (ch <= 0x10FFFF) {
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out.push_back(static_cast<unsigned char>(0xF0 | ((ch >> 18) & 0x07)));
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out.push_back(static_cast<unsigned char>(0x80 | ((ch >> 12) & 0x3F)));
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out.push_back(static_cast<unsigned char>(0x80 | ((ch >> 6) & 0x3F)));
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out.push_back(static_cast<unsigned char>(0x80 | (ch & 0x3F)));
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} else {
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// Invalid Unicode code point
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}
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}
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// Helper function to remove the last UTF-8 character from a string
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static void pop_back_utf8_char(std::string & line) {
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if (line.empty()) {
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return;
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}
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size_t pos = line.length() - 1;
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// Find the start of the last UTF-8 character (checking up to 4 bytes back)
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for (size_t i = 0; i < 3 && pos > 0; ++i, --pos) {
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if ((line[pos] & 0xC0) != 0x80) {
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break; // Found the start of the character
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}
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}
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line.erase(pos);
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}
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static bool readline_advanced(std::string & line, bool multiline_input) {
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if (out != stdout) {
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fflush(stdout);
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}
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line.clear();
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std::vector<int> widths;
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bool is_special_char = false;
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bool end_of_stream = false;
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char32_t input_char;
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while (true) {
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fflush(out); // Ensure all output is displayed before waiting for input
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input_char = getchar32();
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if (input_char == '\r' || input_char == '\n') {
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break;
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}
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if (input_char == (char32_t) WEOF || input_char == 0x04 /* Ctrl+D*/) {
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end_of_stream = true;
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break;
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}
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if (is_special_char) {
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set_display(user_input);
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replace_last(line.back());
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is_special_char = false;
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}
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if (input_char == '\033') { // Escape sequence
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char32_t code = getchar32();
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if (code == '[' || code == 0x1B) {
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// Discard the rest of the escape sequence
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while ((code = getchar32()) != (char32_t) WEOF) {
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if ((code >= 'A' && code <= 'Z') || (code >= 'a' && code <= 'z') || code == '~') {
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break;
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}
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}
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}
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} else if (input_char == 0x08 || input_char == 0x7F) { // Backspace
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if (!widths.empty()) {
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int count;
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do {
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count = widths.back();
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widths.pop_back();
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// Move cursor back, print space, and move cursor back again
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for (int i = 0; i < count; i++) {
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replace_last(' ');
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pop_cursor();
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}
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pop_back_utf8_char(line);
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} while (count == 0 && !widths.empty());
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}
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} else {
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int offset = line.length();
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append_utf8(input_char, line);
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int width = put_codepoint(line.c_str() + offset, line.length() - offset, estimateWidth(input_char));
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if (width < 0) {
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width = 0;
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}
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widths.push_back(width);
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}
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if (!line.empty() && (line.back() == '\\' || line.back() == '/')) {
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set_display(prompt);
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replace_last(line.back());
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is_special_char = true;
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}
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}
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bool has_more = multiline_input;
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if (is_special_char) {
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replace_last(' ');
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pop_cursor();
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char last = line.back();
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line.pop_back();
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if (last == '\\') {
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line += '\n';
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fputc('\n', out);
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has_more = !has_more;
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} else {
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// llama will just eat the single space, it won't act as a space
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if (line.length() == 1 && line.back() == ' ') {
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line.clear();
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pop_cursor();
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}
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has_more = false;
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}
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} else {
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if (end_of_stream) {
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has_more = false;
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} else {
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line += '\n';
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fputc('\n', out);
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}
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}
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fflush(out);
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return has_more;
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}
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static bool readline_simple(std::string & line, bool multiline_input) {
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#if defined(_WIN32)
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std::wstring wline;
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if (!std::getline(std::wcin, wline)) {
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// Input stream is bad or EOF received
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line.clear();
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GenerateConsoleCtrlEvent(CTRL_C_EVENT, 0);
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return false;
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}
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int size_needed = WideCharToMultiByte(CP_UTF8, 0, &wline[0], (int)wline.size(), NULL, 0, NULL, NULL);
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line.resize(size_needed);
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WideCharToMultiByte(CP_UTF8, 0, &wline[0], (int)wline.size(), &line[0], size_needed, NULL, NULL);
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#else
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if (!std::getline(std::cin, line)) {
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// Input stream is bad or EOF received
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line.clear();
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return false;
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}
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#endif
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if (!line.empty()) {
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char last = line.back();
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if (last == '/') { // Always return control on '/' symbol
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line.pop_back();
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return false;
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}
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if (last == '\\') { // '\\' changes the default action
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line.pop_back();
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multiline_input = !multiline_input;
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}
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}
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line += '\n';
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// By default, continue input if multiline_input is set
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return multiline_input;
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}
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bool readline(std::string & line, bool multiline_input) {
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set_display(user_input);
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if (simple_io) {
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return readline_simple(line, multiline_input);
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}
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return readline_advanced(line, multiline_input);
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}
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}
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