mirror of
https://git.adityakumar.xyz/llama.cpp.git
synced 2024-11-14 08:59:45 +00:00
866 lines
33 KiB
C++
866 lines
33 KiB
C++
#include "common.h"
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#include <cassert>
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#include <iostream>
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#include <cstring>
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#include <fstream>
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#include <string>
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#include <iterator>
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#include <algorithm>
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#include <sstream>
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#include <unordered_set>
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#if defined(__APPLE__) && defined(__MACH__)
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#include <sys/types.h>
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#include <sys/sysctl.h>
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#endif
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#if defined(_WIN32)
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#define WIN32_LEAN_AND_MEAN
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#define NOMINMAX
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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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#else
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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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#endif
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int32_t get_num_physical_cores() {
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#ifdef __linux__
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// enumerate the set of thread siblings, num entries is num cores
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std::unordered_set<std::string> siblings;
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for (uint32_t cpu=0; cpu < UINT32_MAX; ++cpu) {
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std::ifstream thread_siblings("/sys/devices/system/cpu"
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+ std::to_string(cpu) + "/topology/thread_siblings");
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if (!thread_siblings.is_open()) {
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break; // no more cpus
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}
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std::string line;
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if (std::getline(thread_siblings, line)) {
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siblings.insert(line);
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}
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}
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if (siblings.size() > 0) {
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return static_cast<int32_t>(siblings.size());
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}
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#elif defined(__APPLE__) && defined(__MACH__)
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int32_t num_physical_cores;
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size_t len = sizeof(num_physical_cores);
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int result = sysctlbyname("hw.perflevel0.physicalcpu", &num_physical_cores, &len, NULL, 0);
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if (result == 0) {
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return num_physical_cores;
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}
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result = sysctlbyname("hw.physicalcpu", &num_physical_cores, &len, NULL, 0);
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if (result == 0) {
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return num_physical_cores;
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}
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#elif defined(_WIN32)
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//TODO: Implement
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#endif
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unsigned int n_threads = std::thread::hardware_concurrency();
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return n_threads > 0 ? (n_threads <= 4 ? n_threads : n_threads / 2) : 4;
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}
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void process_escapes(std::string& input) {
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std::size_t input_len = input.length();
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std::size_t output_idx = 0;
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for (std::size_t input_idx = 0; input_idx < input_len; ++input_idx) {
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if (input[input_idx] == '\\' && input_idx + 1 < input_len) {
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switch (input[++input_idx]) {
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case 'n': input[output_idx++] = '\n'; break;
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case 'r': input[output_idx++] = '\r'; break;
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case 't': input[output_idx++] = '\t'; break;
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case '\'': input[output_idx++] = '\''; break;
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case '\"': input[output_idx++] = '\"'; break;
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case '\\': input[output_idx++] = '\\'; break;
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default: input[output_idx++] = '\\';
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input[output_idx++] = input[input_idx]; break;
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}
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} else {
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input[output_idx++] = input[input_idx];
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}
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}
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input.resize(output_idx);
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}
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bool gpt_params_parse(int argc, char ** argv, gpt_params & params) {
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bool invalid_param = false;
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bool escape_prompt = false;
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std::string arg;
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gpt_params default_params;
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const std::string arg_prefix = "--";
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for (int i = 1; i < argc; i++) {
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arg = argv[i];
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if (arg.compare(0, arg_prefix.size(), arg_prefix) == 0) {
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std::replace(arg.begin(), arg.end(), '_', '-');
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}
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if (arg == "-s" || arg == "--seed") {
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#if defined(GGML_USE_CUBLAS)
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fprintf(stderr, "WARNING: when using cuBLAS generation results are NOT guaranteed to be reproducible.\n");
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#endif
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.seed = std::stoi(argv[i]);
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} else if (arg == "-t" || arg == "--threads") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_threads = std::stoi(argv[i]);
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} else if (arg == "-p" || arg == "--prompt") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.prompt = argv[i];
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} else if (arg == "-e") {
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escape_prompt = true;
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} else if (arg == "--prompt-cache") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.path_prompt_cache = argv[i];
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} else if (arg == "--prompt-cache-all") {
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params.prompt_cache_all = true;
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} else if (arg == "-f" || arg == "--file") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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std::ifstream file(argv[i]);
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if (!file) {
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fprintf(stderr, "error: failed to open file '%s'\n", argv[i]);
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invalid_param = true;
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break;
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}
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std::copy(std::istreambuf_iterator<char>(file), std::istreambuf_iterator<char>(), back_inserter(params.prompt));
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if (params.prompt.back() == '\n') {
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params.prompt.pop_back();
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}
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} else if (arg == "-n" || arg == "--n-predict") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_predict = std::stoi(argv[i]);
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} else if (arg == "--top-k") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.top_k = std::stoi(argv[i]);
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} else if (arg == "-c" || arg == "--ctx-size") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_ctx = std::stoi(argv[i]);
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} else if (arg == "--memory-f32") {
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params.memory_f16 = false;
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} else if (arg == "--top-p") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.top_p = std::stof(argv[i]);
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} else if (arg == "--temp") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.temp = std::stof(argv[i]);
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} else if (arg == "--tfs") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.tfs_z = std::stof(argv[i]);
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} else if (arg == "--typical") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.typical_p = std::stof(argv[i]);
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} else if (arg == "--repeat-last-n") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.repeat_last_n = std::stoi(argv[i]);
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} else if (arg == "--repeat-penalty") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.repeat_penalty = std::stof(argv[i]);
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} else if (arg == "--frequency-penalty") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.frequency_penalty = std::stof(argv[i]);
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} else if (arg == "--presence-penalty") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.presence_penalty = std::stof(argv[i]);
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} else if (arg == "--mirostat") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.mirostat = std::stoi(argv[i]);
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} else if (arg == "--mirostat-lr") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.mirostat_eta = std::stof(argv[i]);
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} else if (arg == "--mirostat-ent") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.mirostat_tau = std::stof(argv[i]);
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} else if (arg == "-b" || arg == "--batch-size") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_batch = std::stoi(argv[i]);
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params.n_batch = std::min(512, params.n_batch);
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} else if (arg == "--keep") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_keep = std::stoi(argv[i]);
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} else if (arg == "-m" || arg == "--model") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.model = argv[i];
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} else if (arg == "--lora") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.lora_adapter = argv[i];
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params.use_mmap = false;
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} else if (arg == "--lora-base") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.lora_base = argv[i];
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} else if (arg == "-i" || arg == "--interactive") {
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params.interactive = true;
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} else if (arg == "--embedding") {
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params.embedding = true;
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} else if (arg == "--interactive-first") {
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params.interactive_first = true;
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} else if (arg == "-ins" || arg == "--instruct") {
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params.instruct = true;
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} else if (arg == "--multiline-input") {
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params.multiline_input = true;
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} else if (arg == "--color") {
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params.use_color = true;
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} else if (arg == "--mlock") {
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params.use_mlock = true;
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} else if (arg == "--gpu-layers" || arg == "-ngl" || arg == "--n-gpu-layers") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.n_gpu_layers = std::stoi(argv[i]);
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} else if (arg == "--no-mmap") {
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params.use_mmap = false;
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} else if (arg == "--mtest") {
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params.mem_test = true;
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} else if (arg == "--verbose-prompt") {
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params.verbose_prompt = true;
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} else if (arg == "-r" || arg == "--reverse-prompt") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.antiprompt.push_back(argv[i]);
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} else if (arg == "--perplexity") {
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params.perplexity = true;
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} else if (arg == "--ignore-eos") {
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params.logit_bias[llama_token_eos()] = -INFINITY;
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} else if (arg == "--no-penalize-nl") {
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params.penalize_nl = false;
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} else if (arg == "-l" || arg == "--logit-bias") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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std::stringstream ss(argv[i]);
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llama_token key;
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char sign;
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std::string value_str;
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try {
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if (ss >> key && ss >> sign && std::getline(ss, value_str) && (sign == '+' || sign == '-')) {
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params.logit_bias[key] = std::stof(value_str) * ((sign == '-') ? -1.0f : 1.0f);
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} else {
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throw std::exception();
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}
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} catch (const std::exception &e) {
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invalid_param = true;
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break;
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}
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} else if (arg == "-h" || arg == "--help") {
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gpt_print_usage(argc, argv, default_params);
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exit(0);
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} else if (arg == "--random-prompt") {
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params.random_prompt = true;
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} else if (arg == "--in-prefix") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.input_prefix = argv[i];
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} else if (arg == "--in-suffix") {
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if (++i >= argc) {
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invalid_param = true;
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break;
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}
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params.input_suffix = argv[i];
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} else {
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fprintf(stderr, "error: unknown argument: %s\n", arg.c_str());
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gpt_print_usage(argc, argv, default_params);
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exit(1);
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}
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}
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if (invalid_param) {
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fprintf(stderr, "error: invalid parameter for argument: %s\n", arg.c_str());
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gpt_print_usage(argc, argv, default_params);
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exit(1);
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}
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if (params.prompt_cache_all &&
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(params.interactive || params.interactive_first ||
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params.instruct)) {
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fprintf(stderr, "error: --prompt-cache-all not supported in interactive mode yet\n");
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gpt_print_usage(argc, argv, default_params);
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exit(1);
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}
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if (escape_prompt) {
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process_escapes(params.prompt);
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}
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return true;
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}
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void gpt_print_usage(int /*argc*/, char ** argv, const gpt_params & params) {
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fprintf(stderr, "usage: %s [options]\n", argv[0]);
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fprintf(stderr, "\n");
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fprintf(stderr, "options:\n");
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fprintf(stderr, " -h, --help show this help message and exit\n");
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fprintf(stderr, " -i, --interactive run in interactive mode\n");
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fprintf(stderr, " --interactive-first run in interactive mode and wait for input right away\n");
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fprintf(stderr, " -ins, --instruct run in instruction mode (use with Alpaca models)\n");
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fprintf(stderr, " --multiline-input allows you to write or paste multiple lines without ending each in '\\'\n");
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fprintf(stderr, " -r PROMPT, --reverse-prompt PROMPT\n");
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fprintf(stderr, " halt generation at PROMPT, return control in interactive mode\n");
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fprintf(stderr, " (can be specified more than once for multiple prompts).\n");
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fprintf(stderr, " --color colorise output to distinguish prompt and user input from generations\n");
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fprintf(stderr, " -s SEED, --seed SEED RNG seed (default: -1, use random seed for < 0)\n");
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fprintf(stderr, " -t N, --threads N number of threads to use during computation (default: %d)\n", params.n_threads);
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fprintf(stderr, " -p PROMPT, --prompt PROMPT\n");
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fprintf(stderr, " prompt to start generation with (default: empty)\n");
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fprintf(stderr, " -e process prompt escapes sequences (\\n, \\r, \\t, \\', \\\", \\\\)\n");
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fprintf(stderr, " --prompt-cache FNAME file to cache prompt state for faster startup (default: none)\n");
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fprintf(stderr, " --prompt-cache-all if specified, saves user input and generations to cache as well.\n");
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fprintf(stderr, " not supported with --interactive or other interactive options\n");
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fprintf(stderr, " --random-prompt start with a randomized prompt.\n");
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fprintf(stderr, " --in-prefix STRING string to prefix user inputs with (default: empty)\n");
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fprintf(stderr, " --in-suffix STRING string to suffix after user inputs with (default: empty)\n");
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fprintf(stderr, " -f FNAME, --file FNAME\n");
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fprintf(stderr, " prompt file to start generation.\n");
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fprintf(stderr, " -n N, --n-predict N number of tokens to predict (default: %d, -1 = infinity)\n", params.n_predict);
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fprintf(stderr, " --top-k N top-k sampling (default: %d, 0 = disabled)\n", params.top_k);
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fprintf(stderr, " --top-p N top-p sampling (default: %.1f, 1.0 = disabled)\n", (double)params.top_p);
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fprintf(stderr, " --tfs N tail free sampling, parameter z (default: %.1f, 1.0 = disabled)\n", (double)params.tfs_z);
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fprintf(stderr, " --typical N locally typical sampling, parameter p (default: %.1f, 1.0 = disabled)\n", (double)params.typical_p);
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fprintf(stderr, " --repeat-last-n N last n tokens to consider for penalize (default: %d, 0 = disabled, -1 = ctx_size)\n", params.repeat_last_n);
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fprintf(stderr, " --repeat-penalty N penalize repeat sequence of tokens (default: %.1f, 1.0 = disabled)\n", (double)params.repeat_penalty);
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fprintf(stderr, " --presence-penalty N repeat alpha presence penalty (default: %.1f, 0.0 = disabled)\n", (double)params.presence_penalty);
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fprintf(stderr, " --frequency-penalty N repeat alpha frequency penalty (default: %.1f, 0.0 = disabled)\n", (double)params.frequency_penalty);
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fprintf(stderr, " --mirostat N use Mirostat sampling.\n");
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fprintf(stderr, " Top K, Nucleus, Tail Free and Locally Typical samplers are ignored if used.\n");
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fprintf(stderr, " (default: %d, 0 = disabled, 1 = Mirostat, 2 = Mirostat 2.0)\n", params.mirostat);
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fprintf(stderr, " --mirostat-lr N Mirostat learning rate, parameter eta (default: %.1f)\n", (double)params.mirostat_eta);
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fprintf(stderr, " --mirostat-ent N Mirostat target entropy, parameter tau (default: %.1f)\n", (double)params.mirostat_tau);
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fprintf(stderr, " -l TOKEN_ID(+/-)BIAS, --logit-bias TOKEN_ID(+/-)BIAS\n");
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fprintf(stderr, " modifies the likelihood of token appearing in the completion,\n");
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fprintf(stderr, " i.e. `--logit-bias 15043+1` to increase likelihood of token ' Hello',\n");
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fprintf(stderr, " or `--logit-bias 15043-1` to decrease likelihood of token ' Hello'\n");
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fprintf(stderr, " -c N, --ctx-size N size of the prompt context (default: %d)\n", params.n_ctx);
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fprintf(stderr, " --ignore-eos ignore end of stream token and continue generating (implies --logit-bias 2-inf)\n");
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fprintf(stderr, " --no-penalize-nl do not penalize newline token\n");
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fprintf(stderr, " --memory-f32 use f32 instead of f16 for memory key+value\n");
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fprintf(stderr, " --temp N temperature (default: %.1f)\n", (double)params.temp);
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fprintf(stderr, " -b N, --batch-size N batch size for prompt processing (default: %d)\n", params.n_batch);
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fprintf(stderr, " --perplexity compute perplexity over the prompt\n");
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fprintf(stderr, " --keep number of tokens to keep from the initial prompt (default: %d, -1 = all)\n", params.n_keep);
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if (llama_mlock_supported()) {
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fprintf(stderr, " --mlock force system to keep model in RAM rather than swapping or compressing\n");
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}
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if (llama_mmap_supported()) {
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fprintf(stderr, " --no-mmap do not memory-map model (slower load but may reduce pageouts if not using mlock)\n");
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}
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fprintf(stderr, " -ngl N, --n-gpu-layers N\n");
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fprintf(stderr, " number of layers to store in VRAM\n");
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fprintf(stderr, " --mtest compute maximum memory usage\n");
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fprintf(stderr, " --verbose-prompt print prompt before generation\n");
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fprintf(stderr, " --lora FNAME apply LoRA adapter (implies --no-mmap)\n");
|
|
fprintf(stderr, " --lora-base FNAME optional model to use as a base for the layers modified by the LoRA adapter\n");
|
|
fprintf(stderr, " -m FNAME, --model FNAME\n");
|
|
fprintf(stderr, " model path (default: %s)\n", params.model.c_str());
|
|
fprintf(stderr, "\n");
|
|
}
|
|
|
|
std::string gpt_random_prompt(std::mt19937 & rng) {
|
|
const int r = rng() % 10;
|
|
switch (r) {
|
|
case 0: return "So";
|
|
case 1: return "Once upon a time";
|
|
case 2: return "When";
|
|
case 3: return "The";
|
|
case 4: return "After";
|
|
case 5: return "If";
|
|
case 6: return "import";
|
|
case 7: return "He";
|
|
case 8: return "She";
|
|
case 9: return "They";
|
|
default: return "To";
|
|
}
|
|
|
|
return "The";
|
|
}
|
|
|
|
// TODO: not great allocating this every time
|
|
std::vector<llama_token> llama_tokenize(struct llama_context * ctx, const std::string & text, bool add_bos) {
|
|
// initialize to prompt numer of chars, since n_tokens <= n_prompt_chars
|
|
std::vector<llama_token> res(text.size() + (int) add_bos);
|
|
const int n = llama_tokenize(ctx, text.c_str(), res.data(), res.size(), add_bos);
|
|
assert(n >= 0);
|
|
res.resize(n);
|
|
|
|
return res;
|
|
}
|
|
|
|
struct llama_context * llama_init_from_gpt_params(const gpt_params & params) {
|
|
auto lparams = llama_context_default_params();
|
|
|
|
lparams.n_ctx = params.n_ctx;
|
|
lparams.n_gpu_layers = params.n_gpu_layers;
|
|
lparams.seed = params.seed;
|
|
lparams.f16_kv = params.memory_f16;
|
|
lparams.use_mmap = params.use_mmap;
|
|
lparams.use_mlock = params.use_mlock;
|
|
lparams.logits_all = params.perplexity;
|
|
lparams.embedding = params.embedding;
|
|
|
|
llama_context * lctx = llama_init_from_file(params.model.c_str(), lparams);
|
|
|
|
if (lctx == NULL) {
|
|
fprintf(stderr, "%s: error: failed to load model '%s'\n", __func__, params.model.c_str());
|
|
return NULL;
|
|
}
|
|
|
|
if (!params.lora_adapter.empty()) {
|
|
int err = llama_apply_lora_from_file(lctx,
|
|
params.lora_adapter.c_str(),
|
|
params.lora_base.empty() ? NULL : params.lora_base.c_str(),
|
|
params.n_threads);
|
|
if (err != 0) {
|
|
fprintf(stderr, "%s: error: failed to apply lora adapter\n", __func__);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
return lctx;
|
|
}
|
|
|
|
void console_init(console_state & con_st) {
|
|
#if defined(_WIN32)
|
|
// Windows-specific console initialization
|
|
DWORD dwMode = 0;
|
|
con_st.hConsole = GetStdHandle(STD_OUTPUT_HANDLE);
|
|
if (con_st.hConsole == INVALID_HANDLE_VALUE || !GetConsoleMode(con_st.hConsole, &dwMode)) {
|
|
con_st.hConsole = GetStdHandle(STD_ERROR_HANDLE);
|
|
if (con_st.hConsole != INVALID_HANDLE_VALUE && (!GetConsoleMode(con_st.hConsole, &dwMode))) {
|
|
con_st.hConsole = NULL;
|
|
}
|
|
}
|
|
if (con_st.hConsole) {
|
|
// Enable ANSI colors on Windows 10+
|
|
if (con_st.use_color && !(dwMode & ENABLE_VIRTUAL_TERMINAL_PROCESSING)) {
|
|
SetConsoleMode(con_st.hConsole, dwMode | ENABLE_VIRTUAL_TERMINAL_PROCESSING);
|
|
}
|
|
// 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);
|
|
|
|
// Turn off ICANON (ENABLE_LINE_INPUT) and ECHO (ENABLE_ECHO_INPUT)
|
|
dwMode &= ~(ENABLE_LINE_INPUT | ENABLE_ECHO_INPUT);
|
|
SetConsoleMode(hConIn, dwMode);
|
|
}
|
|
#else
|
|
// POSIX-specific console initialization
|
|
struct termios new_termios;
|
|
tcgetattr(STDIN_FILENO, &con_st.prev_state);
|
|
new_termios = con_st.prev_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);
|
|
|
|
con_st.tty = fopen("/dev/tty", "w+");
|
|
if (con_st.tty != nullptr) {
|
|
con_st.out = con_st.tty;
|
|
}
|
|
|
|
setlocale(LC_ALL, "");
|
|
#endif
|
|
}
|
|
|
|
void console_cleanup(console_state & con_st) {
|
|
// Reset console color
|
|
console_set_color(con_st, CONSOLE_COLOR_DEFAULT);
|
|
|
|
#if !defined(_WIN32)
|
|
if (con_st.tty != nullptr) {
|
|
con_st.out = stdout;
|
|
fclose(con_st.tty);
|
|
con_st.tty = nullptr;
|
|
}
|
|
// Restore the terminal settings on POSIX systems
|
|
tcsetattr(STDIN_FILENO, TCSANOW, &con_st.prev_state);
|
|
#endif
|
|
}
|
|
|
|
/* Keep track of current color of output, and emit ANSI code if it changes. */
|
|
void console_set_color(console_state & con_st, console_color_t color) {
|
|
if (con_st.use_color && con_st.color != color) {
|
|
fflush(stdout);
|
|
switch(color) {
|
|
case CONSOLE_COLOR_DEFAULT:
|
|
fprintf(con_st.out, ANSI_COLOR_RESET);
|
|
break;
|
|
case CONSOLE_COLOR_PROMPT:
|
|
fprintf(con_st.out, ANSI_COLOR_YELLOW);
|
|
break;
|
|
case CONSOLE_COLOR_USER_INPUT:
|
|
fprintf(con_st.out, ANSI_BOLD ANSI_COLOR_GREEN);
|
|
break;
|
|
}
|
|
con_st.color = color;
|
|
fflush(con_st.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;
|
|
} else 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(console_state & con_st) {
|
|
#if defined(_WIN32)
|
|
if (con_st.hConsole != NULL) {
|
|
CONSOLE_SCREEN_BUFFER_INFO bufferInfo;
|
|
GetConsoleScreenBufferInfo(con_st.hConsole, &bufferInfo);
|
|
|
|
COORD newCursorPosition = bufferInfo.dwCursorPosition;
|
|
if (newCursorPosition.X == 0) {
|
|
newCursorPosition.X = bufferInfo.dwSize.X - 1;
|
|
newCursorPosition.Y -= 1;
|
|
} else {
|
|
newCursorPosition.X -= 1;
|
|
}
|
|
|
|
SetConsoleCursorPosition(con_st.hConsole, newCursorPosition);
|
|
return;
|
|
}
|
|
#endif
|
|
putc('\b', con_st.out);
|
|
}
|
|
|
|
int estimateWidth(char32_t codepoint) {
|
|
#if defined(_WIN32)
|
|
return 1;
|
|
#else
|
|
return wcwidth(codepoint);
|
|
#endif
|
|
}
|
|
|
|
int put_codepoint(console_state & con_st, const char* utf8_codepoint, size_t length, int expectedWidth) {
|
|
#if defined(_WIN32)
|
|
CONSOLE_SCREEN_BUFFER_INFO bufferInfo;
|
|
if (!GetConsoleScreenBufferInfo(con_st.hConsole, &bufferInfo)) {
|
|
// go with the default
|
|
return expectedWidth;
|
|
}
|
|
COORD initialPosition = bufferInfo.dwCursorPosition;
|
|
DWORD nNumberOfChars = length;
|
|
WriteConsole(con_st.hConsole, utf8_codepoint, nNumberOfChars, &nNumberOfChars, NULL);
|
|
|
|
CONSOLE_SCREEN_BUFFER_INFO newBufferInfo;
|
|
GetConsoleScreenBufferInfo(con_st.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(con_st.hConsole, &" \b", 2, &nNumberOfChars, NULL);
|
|
GetConsoleScreenBufferInfo(con_st.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 || con_st.tty == nullptr) {
|
|
fwrite(utf8_codepoint, length, 1, con_st.out);
|
|
return expectedWidth;
|
|
}
|
|
|
|
fputs("\033[6n", con_st.tty); // Query cursor position
|
|
int x1, x2, y1, y2;
|
|
int results = 0;
|
|
results = fscanf(con_st.tty, "\033[%d;%dR", &y1, &x1);
|
|
|
|
fwrite(utf8_codepoint, length, 1, con_st.tty);
|
|
|
|
fputs("\033[6n", con_st.tty); // Query cursor position
|
|
results += fscanf(con_st.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(console_state & con_st, char ch) {
|
|
#if defined(_WIN32)
|
|
pop_cursor(con_st);
|
|
put_codepoint(con_st, &ch, 1, 1);
|
|
#else
|
|
fprintf(con_st.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 console_readline(console_state & con_st, std::string & line) {
|
|
console_set_color(con_st, CONSOLE_COLOR_USER_INPUT);
|
|
if (con_st.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(con_st.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) {
|
|
console_set_color(con_st, CONSOLE_COLOR_USER_INPUT);
|
|
replace_last(con_st, 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(con_st, ' ');
|
|
pop_cursor(con_st);
|
|
}
|
|
pop_back_utf8_char(line);
|
|
} while (count == 0 && !widths.empty());
|
|
}
|
|
} else {
|
|
int offset = line.length();
|
|
append_utf8(input_char, line);
|
|
int width = put_codepoint(con_st, 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() == '/')) {
|
|
console_set_color(con_st, CONSOLE_COLOR_PROMPT);
|
|
replace_last(con_st, line.back());
|
|
is_special_char = true;
|
|
}
|
|
}
|
|
|
|
bool has_more = con_st.multiline_input;
|
|
if (is_special_char) {
|
|
replace_last(con_st, ' ');
|
|
pop_cursor(con_st);
|
|
|
|
char last = line.back();
|
|
line.pop_back();
|
|
if (last == '\\') {
|
|
line += '\n';
|
|
fputc('\n', con_st.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(con_st);
|
|
}
|
|
has_more = false;
|
|
}
|
|
} else {
|
|
if (end_of_stream) {
|
|
has_more = false;
|
|
} else {
|
|
line += '\n';
|
|
fputc('\n', con_st.out);
|
|
}
|
|
}
|
|
|
|
fflush(con_st.out);
|
|
return has_more;
|
|
}
|