StringMagic - v0.5.0

StringMagic super-charges Ruby's String with batteries-included helpers for formatting, validation, analysis, transformation, and security all in one tidy gem.

• Zero dependencies – pure Ruby
• Non-destructive: original strings are never mutated
• Thread-safe & fully tested (160+ RSpec examples, ~98% coverage)
• Drop-in: optionally auto-mixes into String, or use module methods (StringMagic.to_slug(...))

# Formatting
"Hello world".truncate_words(1)             # => "Hello..."
"user@domain.com".mask_emails               # => "u********@domain.com"
"Ruby on Rails".highlight('Ruby')           # => "<mark>Ruby</mark> on Rails"

# Validation
"test@example.com".email?                   # => true
"4111111111111111".credit_card?             # => true
"racecar".palindrome?                       # => true

# Transformation
"CamelCase".to_snake_case                   # => "camel_case"
"user input".to_filename_safe               # => "user_input"
"second".ordinalize                         # => "2nd"

# Analysis
"Visit https://example.com".extract_urls    # => ["https://example.com"]
"Great product!".sentiment_indicators       # => {:positive=>1.0, :negative=>0.0, :neutral=>0}

gem install string_magic

Or add to your Gemfile:

gem 'string_magic'

• Case conversion: to_snake_case, to_kebab_case, to_camel_case, to_pascal_case, to_title_case
• Text manipulation: reverse_words, alternating_case, remove_duplicate_chars, remove_duplicate_words
• HTML handling: remove_html_tags, escape_html

• Format checks: email?, url?, phone?, credit_card?
• Text relations: palindrome?, anagram_of?
• Password strength: strong_password?

• Entity extraction: extract_emails, extract_urls, extract_phones, extract_dates
• Text metrics: readability_score, word_frequency, sentiment_indicators

• Truncation: truncate_words, truncate_sentences, truncate_characters, smart_truncate
• Highlighting: highlight, remove_highlights, highlight_urls

• Data masking: mask_sensitive_data, mask_credit_cards, mask_emails, mask_phones
• Detection: contains_sensitive_data?

• Inflection: to_plural, to_singular, ordinalize, humanize
• Slug generation: to_slug, to_url_slug, to_filename_safe

1. Fork → git checkout -b feature/awesome
2. Add specs for your change
3. bundle exec rspec
4. PR ✉️ – we love improvements!

MIT - See LICENSE for details.