mirror of
https://github.com/zekexiao/pocketlang.git
synced 2025-02-06 04:37:47 +08:00
105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
/*
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* Copyright (c) 2021 Thakee Nathees
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* Licensed under: MIT License
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include "pocketlang.h"
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void errorPrint(PKVM* vm, PKErrorType type, const char* file, int line,
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const char* message) {
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if (type == PK_ERROR_COMPILE) {
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fprintf(stderr, "Error: %s\n at %s:%i\n", message, file, line);
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} else if (type == PK_ERROR_RUNTIME) {
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fprintf(stderr, "Error: %s\n", message);
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} else if (type == PK_ERROR_STACKTRACE) {
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fprintf(stderr, " %s() [%s:%i]\n", message, file, line);
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}
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}
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void writeFunction(PKVM* vm, const char* text) {
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fprintf(stdout, "%s", text);
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}
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void onResultDone(PKVM* vm, pkStringPtr result) {
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if ((bool)result.user_data) {
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free((void*)result.string);
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}
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}
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// FIXME:
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pkStringPtr resolvePath(PKVM* vm, const char* from, const char* path) {
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if (from == NULL) {
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// TODO: name is the complete path.
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}
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pkStringPtr result;
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result.on_done = onResultDone;
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result.string = path;
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result.user_data = (void*)false;
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return result;
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}
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pkStringPtr loadScript(PKVM* vm, const char* path) {
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pkStringPtr result;
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result.on_done = onResultDone;
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// Open the file.
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FILE* file = fopen(path, "r");
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if (file == NULL) {
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// Setting .string to NULL to indicate the failure of loading the script.
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result.string = NULL;
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return result;
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}
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// Get the source length.
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fseek(file, 0, SEEK_END);
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long file_size = ftell(file);
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fseek(file, 0, SEEK_SET);
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// Read source to buffer.
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char* buff = (char*)malloc((size_t)(file_size) + 1);
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size_t read = fread(buff, sizeof(char), file_size, file);
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// Using read instead of file_size is because "\r\n" is read as '\n' in
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// windows the '\r'.
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buff[read] = '\0';
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fclose(file);
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result.string = buff;
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result.user_data = (void*)true;
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return result;
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}
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int main(int argc, char** argv) {
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const char* notice =
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"PocketLang " PK_VERSION_STRING " (https://github.com/ThakeeNathees/pocketlang/)\n"
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"Copyright(c) 2020 - 2021 ThakeeNathees.\n"
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"Free and open source software under the terms of the MIT license.\n";
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const char* help = "Usage: pocketlang <source_path>\n";
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if (argc < 2) {
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printf("%s\n%s", notice, help);
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return 0;
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}
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const char* source_path = argv[1];
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pkConfiguration config = pkNewConfiguration();
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config.error_fn = errorPrint;
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config.write_fn = writeFunction;
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config.load_script_fn = loadScript;
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config.resolve_path_fn = resolvePath;
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PKVM* vm = pkNewVM(&config);
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PKInterpretResult result = pkInterpret(vm, source_path);
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pkFreeVM(vm);
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return result;
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}
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