Task 187: .ES6 File Format

After conducting extensive searches across the web, including queries for specifications, file extensions, examples, and direct downloads, I found no evidence of a standardized .ES6 file format. The term "ES6" is overwhelmingly associated with ECMAScript 6 (also known as ECMAScript 2015), which is a scripting language standard for JavaScript. Occasionally, developers use the .es6 extension for JavaScript source code files that utilize ES6 syntax features, but this is not a formal file format—it's simply plain text (typically UTF-8 encoded) following the ECMAScript language rules. There is no binary structure, header, or encoded properties to "decode" in such files.

If .ES6 refers to something else (e.g., a proprietary or obscure format), it does not appear in public sources, and no specifications could be located.

Without a file format specification, there are no identifiable properties intrinsic to the file system or otherwise. For reference, if treating this as an ES6 JavaScript text file, the "properties" could be interpreted as the language features introduced in ECMAScript 2015, such as:

• Arrow functions
• Classes
• Enhanced object literals
• Template literals
• Destructuring assignment
• Default parameters
• Rest and spread operators
• Let and const declarations
• Iterators and for...of loops
• Generators
• Modules (import/export)
• Promises
• Symbols
• Map, Set, WeakMap, WeakSet
• Proxies
• Reflect API
• Tail call optimization
• New Math, Number, String, Array, and Object APIs
• Binary and octal literals
  These are language features, not file format properties.

No direct download links for .ES6 files were found, as the extension is extremely rare and not indexed in searches. For illustration, here are two direct raw links to example JavaScript files using ES6 syntax (these could theoretically be renamed to .es6 if desired, as they are compatible):

• https://raw.githubusercontent.com/zurb/tribute/master/dist/tribute.js (an ES6-based mentions library)
• https://raw.githubusercontent.com/rse/es6-features/master/README.md (overview with ES6 code snippets; treat as text)

Since no file format specification exists, I cannot write functional code to decode or process a .ES6 file. Here's a placeholder HTML/JavaScript snippet for a Ghost blog embed that allows drag-and-drop of any file and dumps basic file metadata (name, size, last modified, type) to the screen, as that's the closest interpretable action without a spec:

1. Without a file format specification, I cannot write a Python class to decode or process a .ES6 file. Here's a placeholder class that opens any file, reads it as text (assuming ES6 JS), and prints the list of ES6 features from point 1 above:

import os

class ES6FileHandler:
    def __init__(self, filepath):
        self.filepath = filepath
        self.content = None

    def open_and_read(self):
        with open(self.filepath, 'r', encoding='utf-8') as f:
            self.content = f.read()
        print("File read successfully (as text).")

    def decode(self):
        # Placeholder: no decoding needed for text; assume it's already "decoded"
        print("No binary decoding required for text-based file.")

    def write(self, new_content):
        with open(self.filepath, 'w', encoding='utf-8') as f:
            f.write(new_content)
        print("File written successfully.")

    def print_properties(self):
        properties = [
            "Arrow functions",
            "Classes",
            "Enhanced object literals",
            "Template literals",
            "Destructuring assignment",
            "Default parameters",
            "Rest and spread operators",
            "Let and const declarations",
            "Iterators and for...of loops",
            "Generators",
            "Modules (import/export)",
            "Promises",
            "Symbols",
            "Map, Set, WeakMap, WeakSet",
            "Proxies",
            "Reflect API",
            "Tail call optimization",
            "New Math, Number, String, Array, and Object APIs",
            "Binary and octal literals"
        ]
        print("ES6 Properties/Features:")
        for prop in properties:
            print(f"- {prop}")

# Example usage:
# handler = ES6FileHandler('example.es6')
# handler.open_and_read()
# handler.decode()
# handler.print_properties()
# handler.write('new content')

1. Without a file format specification, I cannot write a Java class to decode or process a .ES6 file. Here's a placeholder class that opens any file, reads it as text, and prints the list of ES6 features from point 1 above:

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.List;

public class ES6FileHandler {
    private String filepath;
    private String content;

    public ES6FileHandler(String filepath) {
        this.filepath = filepath;
    }

    public void openAndRead() throws IOException {
        Path path = Paths.get(filepath);
        content = Files.readString(path);
        System.out.println("File read successfully (as text).");
    }

    public void decode() {
        // Placeholder: no decoding needed for text
        System.out.println("No binary decoding required for text-based file.");
    }

    public void write(String newContent) throws IOException {
        try (FileWriter writer = new FileWriter(filepath)) {
            writer.write(newContent);
        }
        System.out.println("File written successfully.");
    }

    public void printProperties() {
        List<String> properties = Arrays.asList(
            "Arrow functions",
            "Classes",
            "Enhanced object literals",
            "Template literals",
            "Destructuring assignment",
            "Default parameters",
            "Rest and spread operators",
            "Let and const declarations",
            "Iterators and for...of loops",
            "Generators",
            "Modules (import/export)",
            "Promises",
            "Symbols",
            "Map, Set, WeakMap, WeakSet",
            "Proxies",
            "Reflect API",
            "Tail call optimization",
            "New Math, Number, String, Array, and Object APIs",
            "Binary and octal literals"
        );
        System.out.println("ES6 Properties/Features:");
        for (String prop : properties) {
            System.out.println("- " + prop);
        }
    }

    // Example usage:
    // public static void main(String[] args) throws IOException {
    //     ES6FileHandler handler = new ES6FileHandler("example.es6");
    //     handler.openAndRead();
    //     handler.decode();
    //     handler.printProperties();
    //     handler.write("new content");
    // }
}

1. Without a file format specification, I cannot write a JavaScript class to decode or process a .ES6 file. Here's a placeholder class (for Node.js) that opens any file, reads it as text, and prints the list of ES6 features from point 1 above:

const fs = require('fs');

class ES6FileHandler {
  constructor(filepath) {
    this.filepath = filepath;
    this.content = null;
  }

  openAndRead() {
    this.content = fs.readFileSync(this.filepath, 'utf8');
    console.log('File read successfully (as text).');
  }

  decode() {
    // Placeholder: no decoding needed for text
    console.log('No binary decoding required for text-based file.');
  }

  write(newContent) {
    fs.writeFileSync(this.filepath, newContent, 'utf8');
    console.log('File written successfully.');
  }

  printProperties() {
    const properties = [
      'Arrow functions',
      'Classes',
      'Enhanced object literals',
      'Template literals',
      'Destructuring assignment',
      'Default parameters',
      'Rest and spread operators',
      'Let and const declarations',
      'Iterators and for...of loops',
      'Generators',
      'Modules (import/export)',
      'Promises',
      'Symbols',
      'Map, Set, WeakMap, WeakSet',
      'Proxies',
      'Reflect API',
      'Tail call optimization',
      'New Math, Number, String, Array, and Object APIs',
      'Binary and octal literals'
    ];
    console.log('ES6 Properties/Features:');
    properties.forEach(prop => console.log(`- ${prop}`));
  }
}

// Example usage:
// const handler = new ES6FileHandler('example.es6');
// handler.openAndRead();
// handler.decode();
// handler.printProperties();
// handler.write('new content');

1. Without a file format specification, I cannot write a C class to decode or process a .ES6 file. Here's a placeholder struct-based implementation that opens any file, reads it as text, and prints the list of ES6 features from point 1 above (note: C doesn't have built-in "classes," so using a struct with functions):

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct {
    char *filepath;
    char *content;
} ES6FileHandler;

ES6FileHandler* create_es6_handler(const char *filepath) {
    ES6FileHandler *handler = (ES6FileHandler*)malloc(sizeof(ES6FileHandler));
    handler->filepath = strdup(filepath);
    handler->content = NULL;
    return handler;
}

void open_and_read(ES6FileHandler *handler) {
    FILE *file = fopen(handler->filepath, "r");
    if (file == NULL) {
        perror("Error opening file");
        return;
    }
    fseek(file, 0, SEEK_END);
    long size = ftell(file);
    fseek(file, 0, SEEK_SET);
    handler->content = (char*)malloc(size + 1);
    fread(handler->content, 1, size, file);
    handler->content[size] = '\0';
    fclose(file);
    printf("File read successfully (as text).\n");
}

void decode(ES6FileHandler *handler) {
    // Placeholder: no decoding needed for text
    printf("No binary decoding required for text-based file.\n");
}

void write_file(ES6FileHandler *handler, const char *new_content) {
    FILE *file = fopen(handler->filepath, "w");
    if (file == NULL) {
        perror("Error opening file");
        return;
    }
    fprintf(file, "%s", new_content);
    fclose(file);
    printf("File written successfully.\n");
}

void print_properties(ES6FileHandler *handler) {
    const char *properties[] = {
        "Arrow functions",
        "Classes",
        "Enhanced object literals",
        "Template literals",
        "Destructuring assignment",
        "Default parameters",
        "Rest and spread operators",
        "Let and const declarations",
        "Iterators and for...of loops",
        "Generators",
        "Modules (import/export)",
        "Promises",
        "Symbols",
        "Map, Set, WeakMap, WeakSet",
        "Proxies",
        "Reflect API",
        "Tail call optimization",
        "New Math, Number, String, Array, and Object APIs",
        "Binary and octal literals",
        NULL
    };
    printf("ES6 Properties/Features:\n");
    for (int i = 0; properties[i] != NULL; i++) {
        printf("- %s\n", properties[i]);
    }
}

void destroy_es6_handler(ES6FileHandler *handler) {
    free(handler->filepath);
    free(handler->content);
    free(handler);
}

// Example usage:
// int main() {
//     ES6FileHandler *handler = create_es6_handler("example.es6");
//     open_and_read(handler);
//     decode(handler);
//     print_properties(handler);
//     write_file(handler, "new content");
//     destroy_es6_handler(handler);
//     return 0;
// }