Tiny Search Engine

Eddie Bae (GitHub username: 20eddibae)

This repository implements the three components of CS50’s Tiny Search Engine:

1. crawler — web crawler that pulls pages from a seed URL
2. indexer — builds an inverted index from the crawled pages
3. querier — answers search queries against the index

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Prerequisites

• A UNIX‐compatible shell (macOS / Linux)
• make, gcc, standard build tools
• Internet connection (for crawling)

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Build

From the top‐level directory:

# build libcs50 and all three tools
make all

Usage

1. Crawl

# <pagedir> must not exist or be empty
./crawler/crawler <seedURL> <pagedir> <maxDepth>

2. Indexer

mkdir indexdir
./indexer/indexer pages indexdir

Example:

./crawler/crawler http://cs50tse.cs.dartmouth.edu/tse/letters pages 2

3. Querier

./querier/querier indexdir

4. Clean

make clean