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-rw-r--r--examples/console.cpp500
1 files changed, 0 insertions, 500 deletions
diff --git a/examples/console.cpp b/examples/console.cpp
deleted file mode 100644
index 8efa2a67..00000000
--- a/examples/console.cpp
+++ /dev/null
@@ -1,500 +0,0 @@
-#include "console.h"
-#include <vector>
-#include <iostream>
-
-#if defined(_WIN32)
-#define WIN32_LEAN_AND_MEAN
-#ifndef NOMINMAX
-#define NOMINMAX
-#endif
-#include <windows.h>
-#include <fcntl.h>
-#include <io.h>
-#ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING
-#define ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x0004
-#endif
-#else
-#include <climits>
-#include <sys/ioctl.h>
-#include <unistd.h>
-#include <wchar.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <termios.h>
-#endif
-
-#define ANSI_COLOR_RED "\x1b[31m"
-#define ANSI_COLOR_GREEN "\x1b[32m"
-#define ANSI_COLOR_YELLOW "\x1b[33m"
-#define ANSI_COLOR_BLUE "\x1b[34m"
-#define ANSI_COLOR_MAGENTA "\x1b[35m"
-#define ANSI_COLOR_CYAN "\x1b[36m"
-#define ANSI_COLOR_RESET "\x1b[0m"
-#define ANSI_BOLD "\x1b[1m"
-
-namespace console {
-
- //
- // Console state
- //
-
- static bool advanced_display = false;
- static bool simple_io = true;
- static display_t current_display = reset;
-
- static FILE* out = stdout;
-
-#if defined (_WIN32)
- static void* hConsole;
-#else
- static FILE* tty = nullptr;
- static termios initial_state;
-#endif
-
- //
- // Init and cleanup
- //
-
- void init(bool use_simple_io, bool use_advanced_display) {
- advanced_display = use_advanced_display;
- simple_io = use_simple_io;
-#if defined(_WIN32)
- // Windows-specific console initialization
- DWORD dwMode = 0;
- hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
- if (hConsole == INVALID_HANDLE_VALUE || !GetConsoleMode(hConsole, &dwMode)) {
- hConsole = GetStdHandle(STD_ERROR_HANDLE);
- if (hConsole != INVALID_HANDLE_VALUE && (!GetConsoleMode(hConsole, &dwMode))) {
- hConsole = nullptr;
- simple_io = true;
- }
- }
- if (hConsole) {
- // Check conditions combined to reduce nesting
- if (advanced_display && !(dwMode & ENABLE_VIRTUAL_TERMINAL_PROCESSING) &&
- !SetConsoleMode(hConsole, dwMode | ENABLE_VIRTUAL_TERMINAL_PROCESSING)) {
- advanced_display = false;
- }
- // Set console output codepage to UTF8
- SetConsoleOutputCP(CP_UTF8);
- }
- HANDLE hConIn = GetStdHandle(STD_INPUT_HANDLE);
- if (hConIn != INVALID_HANDLE_VALUE && GetConsoleMode(hConIn, &dwMode)) {
- // Set console input codepage to UTF16
- _setmode(_fileno(stdin), _O_WTEXT);
-
- // Set ICANON (ENABLE_LINE_INPUT) and ECHO (ENABLE_ECHO_INPUT)
- if (simple_io) {
- dwMode |= ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT;
- } else {
- dwMode &= ~(ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT);
- }
- if (!SetConsoleMode(hConIn, dwMode)) {
- simple_io = true;
- }
- }
-#else
- // POSIX-specific console initialization
- if (!simple_io) {
- struct termios new_termios;
- tcgetattr(STDIN_FILENO, &initial_state);
- new_termios = initial_state;
- new_termios.c_lflag &= ~(ICANON | ECHO);
- new_termios.c_cc[VMIN] = 1;
- new_termios.c_cc[VTIME] = 0;
- tcsetattr(STDIN_FILENO, TCSANOW, &new_termios);
-
- tty = fopen("/dev/tty", "w+");
- if (tty != nullptr) {
- out = tty;
- }
- }
-
- setlocale(LC_ALL, "");
-#endif
- }
-
- void cleanup() {
- // Reset console display
- set_display(reset);
-
-#if !defined(_WIN32)
- // Restore settings on POSIX systems
- if (!simple_io) {
- if (tty != nullptr) {
- out = stdout;
- fclose(tty);
- tty = nullptr;
- }
- tcsetattr(STDIN_FILENO, TCSANOW, &initial_state);
- }
-#endif
- }
-
- //
- // Display and IO
- //
-
- // Keep track of current display and only emit ANSI code if it changes
- void set_display(display_t display) {
- if (advanced_display && current_display != display) {
- fflush(stdout);
- switch(display) {
- case reset:
- fprintf(out, ANSI_COLOR_RESET);
- break;
- case prompt:
- fprintf(out, ANSI_COLOR_YELLOW);
- break;
- case user_input:
- fprintf(out, ANSI_BOLD ANSI_COLOR_GREEN);
- break;
- case error:
- fprintf(out, ANSI_BOLD ANSI_COLOR_RED);
- }
- current_display = display;
- fflush(out);
- }
- }
-
- char32_t getchar32() {
-#if defined(_WIN32)
- HANDLE hConsole = GetStdHandle(STD_INPUT_HANDLE);
- wchar_t high_surrogate = 0;
-
- while (true) {
- INPUT_RECORD record;
- DWORD count;
- if (!ReadConsoleInputW(hConsole, &record, 1, &count) || count == 0) {
- return WEOF;
- }
-
- if (record.EventType == KEY_EVENT && record.Event.KeyEvent.bKeyDown) {
- wchar_t wc = record.Event.KeyEvent.uChar.UnicodeChar;
- if (wc == 0) {
- continue;
- }
-
- if ((wc >= 0xD800) && (wc <= 0xDBFF)) { // Check if wc is a high surrogate
- high_surrogate = wc;
- continue;
- }
- if ((wc >= 0xDC00) && (wc <= 0xDFFF)) { // Check if wc is a low surrogate
- if (high_surrogate != 0) { // Check if we have a high surrogate
- return ((high_surrogate - 0xD800) << 10) + (wc - 0xDC00) + 0x10000;
- }
- }
-
- high_surrogate = 0; // Reset the high surrogate
- return static_cast<char32_t>(wc);
- }
- }
-#else
- wchar_t wc = getwchar();
- if (static_cast<wint_t>(wc) == WEOF) {
- return WEOF;
- }
-
-#if WCHAR_MAX == 0xFFFF
- if ((wc >= 0xD800) && (wc <= 0xDBFF)) { // Check if wc is a high surrogate
- wchar_t low_surrogate = getwchar();
- if ((low_surrogate >= 0xDC00) && (low_surrogate <= 0xDFFF)) { // Check if the next wchar is a low surrogate
- return (static_cast<char32_t>(wc & 0x03FF) << 10) + (low_surrogate & 0x03FF) + 0x10000;
- }
- }
- if ((wc >= 0xD800) && (wc <= 0xDFFF)) { // Invalid surrogate pair
- return 0xFFFD; // Return the replacement character U+FFFD
- }
-#endif
-
- return static_cast<char32_t>(wc);
-#endif
- }
-
- void pop_cursor() {
-#if defined(_WIN32)
- if (hConsole != NULL) {
- CONSOLE_SCREEN_BUFFER_INFO bufferInfo;
- GetConsoleScreenBufferInfo(hConsole, &bufferInfo);
-
- COORD newCursorPosition = bufferInfo.dwCursorPosition;
- if (newCursorPosition.X == 0) {
- newCursorPosition.X = bufferInfo.dwSize.X - 1;
- newCursorPosition.Y -= 1;
- } else {
- newCursorPosition.X -= 1;
- }
-
- SetConsoleCursorPosition(hConsole, newCursorPosition);
- return;
- }
-#endif
- putc('\b', out);
- }
-
- int estimateWidth(char32_t codepoint) {
-#if defined(_WIN32)
- return 1;
-#else
- return wcwidth(codepoint);
-#endif
- }
-
- int put_codepoint(const char* utf8_codepoint, size_t length, int expectedWidth) {
-#if defined(_WIN32)
- CONSOLE_SCREEN_BUFFER_INFO bufferInfo;
- if (!GetConsoleScreenBufferInfo(hConsole, &bufferInfo)) {
- // go with the default
- return expectedWidth;
- }
- COORD initialPosition = bufferInfo.dwCursorPosition;
- DWORD nNumberOfChars = length;
- WriteConsole(hConsole, utf8_codepoint, nNumberOfChars, &nNumberOfChars, NULL);
-
- CONSOLE_SCREEN_BUFFER_INFO newBufferInfo;
- GetConsoleScreenBufferInfo(hConsole, &newBufferInfo);
-
- // Figure out our real position if we're in the last column
- if (utf8_codepoint[0] != 0x09 && initialPosition.X == newBufferInfo.dwSize.X - 1) {
- DWORD nNumberOfChars;
- WriteConsole(hConsole, &" \b", 2, &nNumberOfChars, NULL);
- GetConsoleScreenBufferInfo(hConsole, &newBufferInfo);
- }
-
- int width = newBufferInfo.dwCursorPosition.X - initialPosition.X;
- if (width < 0) {
- width += newBufferInfo.dwSize.X;
- }
- return width;
-#else
- // We can trust expectedWidth if we've got one
- if (expectedWidth >= 0 || tty == nullptr) {
- fwrite(utf8_codepoint, length, 1, out);
- return expectedWidth;
- }
-
- fputs("\033[6n", tty); // Query cursor position
- int x1;
- int y1;
- int x2;
- int y2;
- int results = 0;
- results = fscanf(tty, "\033[%d;%dR", &y1, &x1);
-
- fwrite(utf8_codepoint, length, 1, tty);
-
- fputs("\033[6n", tty); // Query cursor position
- results += fscanf(tty, "\033[%d;%dR", &y2, &x2);
-
- if (results != 4) {
- return expectedWidth;
- }
-
- int width = x2 - x1;
- if (width < 0) {
- // Calculate the width considering text wrapping
- struct winsize w;
- ioctl(STDOUT_FILENO, TIOCGWINSZ, &w);
- width += w.ws_col;
- }
- return width;
-#endif
- }
-
- void replace_last(char ch) {
-#if defined(_WIN32)
- pop_cursor();
- put_codepoint(&ch, 1, 1);
-#else
- fprintf(out, "\b%c", ch);
-#endif
- }
-
- void append_utf8(char32_t ch, std::string & out) {
- if (ch <= 0x7F) {
- out.push_back(static_cast<unsigned char>(ch));
- } else if (ch <= 0x7FF) {
- out.push_back(static_cast<unsigned char>(0xC0 | ((ch >> 6) & 0x1F)));
- out.push_back(static_cast<unsigned char>(0x80 | (ch & 0x3F)));
- } else if (ch <= 0xFFFF) {
- out.push_back(static_cast<unsigned char>(0xE0 | ((ch >> 12) & 0x0F)));
- out.push_back(static_cast<unsigned char>(0x80 | ((ch >> 6) & 0x3F)));
- out.push_back(static_cast<unsigned char>(0x80 | (ch & 0x3F)));
- } else if (ch <= 0x10FFFF) {
- out.push_back(static_cast<unsigned char>(0xF0 | ((ch >> 18) & 0x07)));
- out.push_back(static_cast<unsigned char>(0x80 | ((ch >> 12) & 0x3F)));
- out.push_back(static_cast<unsigned char>(0x80 | ((ch >> 6) & 0x3F)));
- out.push_back(static_cast<unsigned char>(0x80 | (ch & 0x3F)));
- } else {
- // Invalid Unicode code point
- }
- }
-
- // Helper function to remove the last UTF-8 character from a string
- void pop_back_utf8_char(std::string & line) {
- if (line.empty()) {
- return;
- }
-
- size_t pos = line.length() - 1;
-
- // Find the start of the last UTF-8 character (checking up to 4 bytes back)
- for (size_t i = 0; i < 3 && pos > 0; ++i, --pos) {
- if ((line[pos] & 0xC0) != 0x80) {
- break; // Found the start of the character
- }
- }
- line.erase(pos);
- }
-
- bool readline_advanced(std::string & line, bool multiline_input) {
- if (out != stdout) {
- fflush(stdout);
- }
-
- line.clear();
- std::vector<int> widths;
- bool is_special_char = false;
- bool end_of_stream = false;
-
- char32_t input_char;
- while (true) {
- fflush(out); // Ensure all output is displayed before waiting for input
- input_char = getchar32();
-
- if (input_char == '\r' || input_char == '\n') {
- break;
- }
-
- if (input_char == (char32_t) WEOF || input_char == 0x04 /* Ctrl+D*/) {
- end_of_stream = true;
- break;
- }
-
- if (is_special_char) {
- set_display(user_input);
- replace_last(line.back());
- is_special_char = false;
- }
-
- if (input_char == '\033') { // Escape sequence
- char32_t code = getchar32();
- if (code == '[' || code == 0x1B) {
- // Discard the rest of the escape sequence
- while ((code = getchar32()) != (char32_t) WEOF) {
- if ((code >= 'A' && code <= 'Z') || (code >= 'a' && code <= 'z') || code == '~') {
- break;
- }
- }
- }
- } else if (input_char == 0x08 || input_char == 0x7F) { // Backspace
- if (!widths.empty()) {
- int count;
- do {
- count = widths.back();
- widths.pop_back();
- // Move cursor back, print space, and move cursor back again
- for (int i = 0; i < count; i++) {
- replace_last(' ');
- pop_cursor();
- }
- pop_back_utf8_char(line);
- } while (count == 0 && !widths.empty());
- }
- } else {
- int offset = line.length();
- append_utf8(input_char, line);
- int width = put_codepoint(line.c_str() + offset, line.length() - offset, estimateWidth(input_char));
- if (width < 0) {
- width = 0;
- }
- widths.push_back(width);
- }
-
- if (!line.empty() && (line.back() == '\\' || line.back() == '/')) {
- set_display(prompt);
- replace_last(line.back());
- is_special_char = true;
- }
- }
-
- bool has_more = multiline_input;
- if (is_special_char) {
- replace_last(' ');
- pop_cursor();
-
- char last = line.back();
- line.pop_back();
- if (last == '\\') {
- line += '\n';
- fputc('\n', out);
- has_more = !has_more;
- } else {
- // llama will just eat the single space, it won't act as a space
- if (line.length() == 1 && line.back() == ' ') {
- line.clear();
- pop_cursor();
- }
- has_more = false;
- }
- } else {
- if (end_of_stream) {
- has_more = false;
- } else {
- line += '\n';
- fputc('\n', out);
- }
- }
-
- fflush(out);
- return has_more;
- }
-
- bool readline_simple(std::string & line, bool multiline_input) {
-#if defined(_WIN32)
- std::wstring wline;
- if (!std::getline(std::wcin, wline)) {
- // Input stream is bad or EOF received
- line.clear();
- GenerateConsoleCtrlEvent(CTRL_C_EVENT, 0);
- return false;
- }
-
- int size_needed = WideCharToMultiByte(CP_UTF8, 0, &wline[0], (int)wline.size(), NULL, 0, NULL, NULL);
- line.resize(size_needed);
- WideCharToMultiByte(CP_UTF8, 0, &wline[0], (int)wline.size(), &line[0], size_needed, NULL, NULL);
-#else
- if (!std::getline(std::cin, line)) {
- // Input stream is bad or EOF received
- line.clear();
- return false;
- }
-#endif
- if (!line.empty()) {
- char last = line.back();
- if (last == '/') { // Always return control on '/' symbol
- line.pop_back();
- return false;
- }
- if (last == '\\') { // '\\' changes the default action
- line.pop_back();
- multiline_input = !multiline_input;
- }
- }
- line += '\n';
-
- // By default, continue input if multiline_input is set
- return multiline_input;
- }
-
- bool readline(std::string & line, bool multiline_input) {
- set_display(user_input);
-
- if (simple_io) {
- return readline_simple(line, multiline_input);
- }
- return readline_advanced(line, multiline_input);
- }
-
-}
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