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google/codesearch

0
View on GitHub↗
3,980 stars·398 forks·Go·BSD-3-Clause·24 viewsswtch.com/~rsc/regexp/regexp4.html↗

Codesearch

Codesearch is an indexed code search engine and large-scale source indexer designed to execute regular expressions across extensive source code trees. It functions as a tool for finding specific text patterns in large codebases by analyzing and indexing massive volumes of source files for rapid retrieval.

The system utilizes a specialized trigram-based search index to accelerate complex regular expression queries. This indexing approach filters candidate documents via three-character sequences before applying full regular expression scans to ensure high performance on large datasets.

The engine handles Unicode text processing for UTF-8 and Latin-1 encoded content, ensuring consistent character matching and casing across different languages. Its capabilities cover source code indexing, pattern matching, and high-performance regular expression search.

Features

  • Code Pattern Searches - Finds specific text patterns across large codebases by applying regular expressions to a source index.
  • Trigram Indexes - Utilizes a trigram-based inverted index to filter candidate documents before applying full regular expression scans.
  • Source Code Indexing - Analyzes large volumes of source code to create a searchable index for rapid retrieval of code segments.
  • Regexp Code Search Engines - Provides a high-performance search engine using an inverted trigram index to execute regular expressions across code trees.
  • Trigram-Based Indexing - Uses a specialized trigram-based index to filter candidate files and accelerate complex regular expression queries.
  • Multi-Repository Code Searches - Enables finding specific text patterns or code segments across massive repositories using fast indexing.
  • Regex Search Engines - Executes complex regular expression queries over large datasets with high performance via trigram filtering.
  • Document Filtering - Identifies potential matches by executing regular expression queries against an optimized index to narrow document sets.
  • Full-Text Inverted Indexes - Implements an inverted index that maps text fragments to file locations for rapid code retrieval.
  • Text Pattern Search - Matches regular expressions against strings to identify the exact positions and boundaries of the found text.
  • Filter-and-Scan Pipelines - Uses a fast initial index filter followed by a precise regular expression pass to locate exact boundaries.
  • Code Analysis and Quality - Fast code search tool.

Star history

Star history chart for google/codesearchStar history chart for google/codesearch

How this analysis was created: This summary and feature list were written by an AI model that read the project's README and public documentation pages. Each feature links to the documentation it came from; stars, license and language come straight from the GitHub API. The model does not read the source code, and the analysis is refreshed when the project is re-analysed. Learn more on our About page.

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Open-source alternatives to Codesearch

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  • rust-lang/regexrust-lang avatar

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    This is a Rust regular expression library that provides a finite automata engine for searching and matching text patterns. It functions as a Unicode-compliant text scanner designed to guarantee linear time execution on all inputs to prevent catastrophic backtracking. The engine supports both single and multi-pattern search capabilities, allowing it to scan a piece of text for multiple regular expressions simultaneously. It operates on both strings and raw byte slices to identify matching text segments. The library covers text parsing, string validation, and pattern searching. It includes cap

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See all 30 alternatives to Codesearch→

Frequently asked questions

What does google/codesearch do?

Codesearch is an indexed code search engine and large-scale source indexer designed to execute regular expressions across extensive source code trees. It functions as a tool for finding specific text patterns in large codebases by analyzing and indexing massive volumes of source files for rapid retrieval.

What are the main features of google/codesearch?

The main features of google/codesearch are: Code Pattern Searches, Trigram Indexes, Source Code Indexing, Regexp Code Search Engines, Trigram-Based Indexing, Multi-Repository Code Searches, Regex Search Engines, Document Filtering.

What are some open-source alternatives to google/codesearch?

Open-source alternatives to google/codesearch include: hound-search/hound — Hound is a self-hosted code search engine that indexes source code repositories and provides fast regular expression… etsy/hound — Hound is a self-hosted source code search engine designed to index multiple repositories for high-performance regular… oracle/opengrok — OpenGrok is a Java-based source code search engine and indexer designed to process large source trees and binaries… rust-lang/regex — This is a Rust regular expression library that provides a finite automata engine for searching and matching text… crazyguitar/pysheeet — pysheeet is a technical reference library providing a curated collection of code snippets and implementation patterns… francisrstokes/super-expressive — Super-expressive is a zero-dependency JavaScript library and domain-specific language used to construct complex…