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Grep

Global Regular Expression Print

A command-line tool for searching text using regular expression patterns, foundational in Unix workflows.

Technical Detail

Grep operates on sequences of Unicode code points, where each character's properties (category, script, case, directionality) are defined by the Unicode standard. Text processing in the browser uses the TextEncoder/TextDecoder APIs for encoding conversion and Intl.Segmenter for locale-aware word and sentence boundary detection. Understanding the distinction between bytes, code units, code points, and grapheme clusters is essential for correct text manipulation.

Example

```javascript
// Grep: text processing example
const input = 'Sample text for processing';
const result = input
  .trim()
  .split(/\s+/)
  .filter(Boolean);
console.log(result); // ['Sample', 'text', 'for', 'processing']
```

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Related Terms

ASCII BOM Case Conversion CJK Diacritics Escape Character Kerning Leading Ligature Line Ending Lorem Ipsum N-gram Normalization (Text) Plain Text Readability Score Rich Text ROT13 RTL Slug Stemming String Distance String Interpolation Text Diff Text Encoding Tokenization Transliteration Truncation Unicode Whitespace Word Count