Cindex, a csv indexer

Cindex is a simple to use csv indexer with SQL like simple query support.

Usage

toml [dependencies] cindex = "*" # Use the latest version if possible

```rust use cindex::{Indexer, CIndexResult, CsvType, Predicate, Query, OutOption, Operator};

let mut indexer = Indexer::new();

// Add table without types // Default types for every columns are "Text" indexer.addtablefast( "table1", File::open("test.csv").expect("Failed to open") )?;

// Add table with column types indexer.addtable( "table2", vec![CsvType::Text, CsvType::Text], "id,address 10,110-2222".asbytes() )?;

// Add table from stdin let stdin = std::io::stdin(); indexer.addtablefast( "table3", stdin.lock() )?;

// Indexing

// Create query object and print output to terminal let query = Query::from_str("SELECT a,b,c FROM table1 WHERE a = 10"); indexer.index(query, OutOption::Term)?;

// Use raw query and yield output to a file indexer.index_raw("SELECT * FROM table3 WHERE id = 10", OutOption::File(std::fs::File::create("out.csv")?))?;

// Use builder pattern to construct query and index a table let query = Query::empty("table2") .columns(vec!["id", "address"]) .predicate( Predicate::new("id", Operator::Equal) .args(vec!["10"]) ) .predicate( Predicate::build() .column("address") .operator(Operator::NotEqual) .raw_args("111-2222") );

let mut acc = String::new(); indexer.index(query, OutOption::Value(&mut acc))?; ```

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