ai.fivesixteensvgapi.c

// I can write a simple C API to integrate functionality for files containing the string ‘fivesixteensvg’ in the filename and allow it to link Javascript. The API will consist of two functions: one to scan a directory for files matching the pattern, and another to execute a Javascript file using a library such as Duktape. Here is the code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <dirent.h>
#include "duktape.h"

// A function to scan a directory for files containing the string 'fivesixteensvg' in the filename
// Returns a pointer to an array of strings with the file names, or NULL if none found
// The caller is responsible for freeing the memory allocated by this function
char **scan_files(const char *dir) {
    char **files = NULL; // Initialize the array of file names
    int count = 0; // Initialize the count of file names
    DIR *d = opendir(dir); // Open the directory
    if (d) { // If the directory is opened successfully
        struct dirent *entry; // Declare a pointer to a directory entry
        while ((entry = readdir(d)) != NULL) { // While there are entries to read
            if (entry->d_type == DT_REG) { // If the entry is a regular file
                char *name = entry->d_name; // Get the file name
                if (strstr(name, "fivesixteensvg") != NULL) { // If the file name contains the string 'fivesixteensvg'
                    count++; // Increment the count
                    files = realloc(files, count * sizeof(char *)); // Reallocate the array of file names
                    files[count - 1] = strdup(name); // Copy the file name to the array
                }
            }
        }
        closedir(d); // Close the directory
    }
    return files; // Return the array of file names
}

// A function to execute a Javascript file using Duktape library
// Returns 0 on success, or -1 on error
int execute_js(const char *file) {
    int result = 0; // Initialize the result
    duk_context *ctx = duk_create_heap_default(); // Create a Duktape heap
    if (ctx) { // If the heap is created successfully
        if (duk_peval_file(ctx, file) != 0) { // If the evaluation of the file fails
            printf("Error: %s\n", duk_safe_to_string(ctx, -1)); // Print the error message
            result = -1; // Set the result to -1
        }
        duk_pop(ctx); // Pop the evaluation result
        duk_destroy_heap(ctx); // Destroy the heap
    } else { // If the heap is not created successfully
        printf("Failed to create a Duktape heap.\n"); // Print a message
        result = -1; // Set the result to -1
    }
    return result; // Return the result
}