quick and dirty autocomplete feature

main.go

package main

import (
	"database/sql"
	"fmt"
	"log"
	"os"

	_ "github.com/mattn/go-sqlite3"
)

// -- Database generated using:
// CREATE TABLE words (text);
// INSERT INTO words VALUES (apple);
// INSERT INTO words VALUES (banana);
// INSERT INTO words VALUES (blueberry);
// INSERT INTO words VALUES (strawberry);

func main() {
	db, err := sql.Open("sqlite3", "./CASSIDOO")
	if err != nil {
		log.Fatal(err)
	}
	defer db.Close()

	args := os.Args[1:]

	stmt, err := db.Prepare("select * from words where text like ?")
	if err != nil {
		log.Fatal(err)
	}
	defer stmt.Close()

	for _, a := range args {
		log.Printf("=> searching for %s", a)

		rows, err := stmt.Query(fmt.Sprintf("%%%s%%", a))
		if err != nil {
			log.Fatal(err)
		}
		for rows.Next() {
			var word string
			err = rows.Scan(&word)
			if err != nil {
				log.Fatal(err)
			}
			fmt.Println(word)
		}
		err = rows.Err()
		if err != nil {
			log.Fatal(err)
		}

		_ = rows.Close()
	}
}