Selection Manipulator

The Ultimate Text Processing Toolkit for VS Code

Selection Manipulator offers over 250 powerful tools to manipulate, transform, and analyze text directly in your editor. From everyday tasks like sorting and JSON formatting to advanced cryptography, network analysis, and Japanese text conversion, this extension supercharges your workflow.

✨ Features

📝 Text Manipulation

• Sort: Organize lines or selections by string, number, occurrence, or length (Ascending/Descending).
• Unique: Instantly remove duplicate lines.
• Extract: Filter and extract matching text, lines, emails, URLs, IPs, or lines by length (equal/less/greater) to a new tab or clipboard.
• Edit: Reverse text, shuffle content, remove cursors, separate multi-selections, remove characters from edges, mask text.
• Insert: Date (ISO, Locale, Timestamp, Era), Markdown Link, Enclosed Text (Quotes, Brackets, Japanese Symbols).
• Convert Date: Convert between ISO 8601, Locale String, and Timestamp (Seconds/Milliseconds), AD <-> Wareki.
• Morse Code: Convert text to Morse Code (Alphanumeric/Japanese Kana) and vice versa.
• Format: Remove blank rows, zero-pad numbers, and more.
• Cleanup: Remove empty lines, line numbers, join/split lines, trim lines (Start/End/All), normalize whitespace, strip HTML, unsmart quotes, remove duplicate lines.
• Advanced Case: Smart Title Case, SpongeBob Case, Screaming Snake, Humanize, Slugify, Remove Accents.
• Math: Sum, Average, Min, Max, Hex <-> Decimal, Date Calculation.
• Unit Conversion: px <-> rem, kg <-> lb.
• CSV: Convert between CSV and Markdown Table.

💻 Developer Utilities

• JSON & XML: Format (Pretty Print), Minify, Stringify, Parse, Flatten/Unflatten JSON, XML<->JSON.
• Encoding: Base64 Encode/Decode/Deflate/Inflate.
• Case Conversion: Switch between Camel, Snake, Kebab, Pascal, Constant, Dot, Path, Sentence, and Title cases.
• Escaping: Escape/Unescape text (JSON stringify/parse compatibility).
• Programmatic: Convert between JSON<->YAML, Hex<->RGB, Toggle quotes, Env file to JSON.

🔐 Cryptography & Security

• Hashing: Generate MD5, SHA-1, SHA-256, and SHA-512 hashes.
• HMAC: Create HMAC-SHA256, HMAC-SHA512, and HMAC-MD5 signatures.
• Encryption: Securely Encrypt and Decrypt text using AES.
• Decoders: Decode JWT, SAML Request/Response, and X.509 Certificates.

🌐 Network & Analysis

• URL: Parse URL to JSON, Parse URL Parameters to JSON.
• DNS: Perform comprehensive DNS lookups (A, AAAA, MX, NS, TXT, etc.).
• Whois: Quick domain Whois lookups.
• IP Geolocation: Get location data for IP addresses.
• HAR Visualization: Visualize HTTP Archive (HAR) logs as Mermaid Sequence Diagrams.

🇯🇵 Japanese Text Support

• Width Conversion: Convert between Full-width and Half-width characters (including Katakana).
• Kana Conversion: Convert between Hiragana and Katakana.

🎨 Fun & Generators

• Mock Data: Generate Random UUIDs, Passwords, IPv4, IPv6, Lorem Ipsum.
• ASCII Art: Generate "Cowsay" speech bubbles.
• Math: Evaluate expressions, calculate Sum/Average/Min/Max.

🚀 Key Usage

1. Select the text you want to process.
2. Open Command Palette (Cmd+Shift+P / Ctrl+Shift+P).
3. Type Selection Manipulator to explore all commands.
4. (Or right-click and use the context menu).

Pro Tip: Commands that generate output in a new tab (e.g., Base64 Encode) now open a Read-Only tab. This prevents the "Save changes?" prompt when closing the tab. These tabs persist until manually closed.

Usage Guide

This document provides a comprehensive list of features available in Selection Manipulator, along with examples of their usage. Many commands come in two variables:

1. Standard: Opens the result in a new tab.
2. Replace: Replaces the selected text directly.

1. Text Modification

Remove Cursor / Characters

• Remove Cursor Above/Below: Helps align multi-cursor selections.
• Remove Character from Each Side: Trims one character from both start and end of selection.
• Convert to Multi Selection: Splits a multi-line selection into individual cursors (one per line).

Edit & Enclose

• Reverse Selections: Reverses the order of characters in the selection.
• Mask with Asterisk: Masks the selected text with asterisks (*) (e.g., pass -> ****).
• Toggle Quotes: Toggles between single (') and double (") quotes.
• Enclose Text: Wrap text with:
  • Quotes: 'Single', "Double", `Backtick`
  • Brackets: (Paren), [Square], {Curly}, <Angle>
  • Japanese: 「Single」, 『Double』, 【Bracket】, ＜Angle＞, （Paren）, ［Square］, ｛Curly｝

Format & Insert

• Zero Padding: Pads numbers with leading zeros (e.g., 1 -> 001).
• Markdown Link: Creates a Markdown link from selection and clipboard URL.
• Insert Date: Inserts ISO 8601, Locale String, or Unix Timestamp.

2. Text Cleanup

Comprehensive tools to clean up and normalize code or text.

• Remove Empty Lines: Removes lines containing only whitespace.
• Remove Line Numbers: Removes leading numbering (e.g., 1., [1], 1)).
• Trim Lines: Trim Start, End, or All whitespace.
• Join / Split Lines: Join lines with space/comma, or split text by space/comma.
• Normalize Whitespace: Replaces multiple spaces with a single space (a b -> a b).
• Strip HTML Tags: Removes HTML tags, keeping inner text (<b>bold</b> -> bold).
• Unsmart Quotes: Converts smart quotes (“, ”) to straight quotes (").
• Remove Duplicate Lines: Keeps only the first occurrence of identical lines.

3. Sort, Unique & Shuffle

Sort Lines

Sorts selected lines based on various criteria.

• Criteria: String, Number, Line Length, Occurrence Count.
• Order: Ascending, Descending.
• Variations: Sort the entire line or just the selection.

Unique & Shuffle

• Unique Selections: Removes duplicate lines.
• Shuffle: Randomly shuffles the selected lines or selections.

4. Extraction

Filter and move data to a new tab or clipboard.

• Extract Lines: By Regex match or manual selection.
• Extract by Length: Equal to, Less than, Greater than, or Range of N characters.
• Extract Specific Data:
  • Email: support@example.com
  • URL: https://example.com
  • IP Address: 192.168.1.1

5. Case Conversion

Convert text between naming conventions and cases.

• Code Cases: Camel, Pascal, Snake, Kebab, Constant (UPPER_SNAKE), Dot, Path.
• Text Cases: Upper, Lower, Capital, Sentence, Title (Smart).
• Fun/Other: SpongeBob (sPoNgEbOb), Screaming Snake, Humanize, Slugify.
• Remove Accents: Crème -> Creme.

6. Data Transformation

JSON / XML / YAML

• Format (Pretty Print): Formats minified JSON/XML.
• Minify: Compresses code.
• Convert:
  • JSON <-> YAML
  • XML -> JSON
  • Env File -> JSON
• Stringify/Parse: Escape/Unescape JSON strings.
• Flatten/Unflatten: Convert between nested JSON and dot-notation.

CSV

• CSV <-> Markdown Table: Convert between Comma-Separated Values and Markdown table syntax.

Encoding

• Base64: Encode, Decode, Deflate, Inflate.
• URL: Encode/Decode URI or URI Components.
• Escape/Unescape: Handle standard string escaping (newlines, quotes).

7. Cryptography & Security

Hashing & Encryption

• Hash: MD5, SHA-1, SHA-256, SHA-512.
• HMAC: Keyed-hash for the above algorithms.
• AES Encryption: Encrypt/Decrypt text with a passphrase.

Decoders

• JWT: Decode JSON Web Tokens header/payload.
• SAML: Decode SAML Requests/Responses.
• X.509: View Certificate details.

8. Network & Analysis

• DNS Lookup: A, AAAA, MX, NS, TXT, etc.
• Whois: Domain registration info.
• IP Geolocation: Country, City, ISP data.
• HAR Visualization: Convert HTTP Archive (HAR) logs to Mermaid sequence diagrams.

9. Generators & Random

• UUID: Generate Random UUID v4.
• Password: Generate strong random passwords.
• IP Address: Random IPv4 / IPv6.
• Lorem Ipsum: Placeholder text.

10. Calculation & Numbers

Math & Statistics

• Evaluate: 1 + 2 * 3 -> 7.
• Statistics: Sum, Average, Min, Max of selected numbers.
• Base Conversion: Hex <-> Decimal.

Counting & Date

• Increment/Decrement: Increase/decrease numbers (From 1, From N, By 1, By N).
• Date Calculation: Days between dates.
• Unit Conversion:
  • Length: px <-> rem (Base 16).
  • Weight: kg <-> lb.

11. Japanese Text Support

• Width Conversion: Full-width <-> Half-width (Alphanumeric + Katakana).
• Kana Conversion: Hiragana <-> Katakana.

12. ASCII Art / Fun

• ASCII Art: Wraps text in a balloon with an ASCII character (Cowsay, Tux, Ghost, Meow, Pig, Face, Daemon, Dragon, Stegosaurus, Turkey, Turtle, Elephant, etc.).

13. Date Conversion

Convert selected date strings between various formats.

• Formats: ISO 8601, Locale String, Unix Timestamp (Seconds / Milliseconds).
• Japanese Era (Wareki): Convert AD Year to Japanese Era (e.g., 2025 <-> 令和7年).
  • Supports: Meiji, Taisho, Showa, Heisei, Reiwa.

14. Morse Code

Convert text to dots and dashes, and vice versa.

• Text to Morse: Supports Alphanumeric (International) and Japanese Kana (Wabun).
• Morse to Text: Decodes Morse code to text.
• Morse to Text (Kana): Explicitly decodes as Japanese Kana (Wabun Code) to resolve ambiguities.

Example: Before:

Hello World

After:

 _____________ 
< Hello World >
 ------------- 
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||