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main.go
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main.go
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package main
import (
"fmt"
"log"
"os"
"time"
"github.com/paulboocock/anagram/pkg/anagram"
"github.com/paulboocock/anagram/pkg/reader"
"github.com/paulboocock/anagram/pkg/writer"
"github.com/urfave/cli"
)
func main() {
app := &cli.App{
Name: "Anagram",
Usage: "Finds anagrams from a word list - ./anagram /path/to/file.txt",
Version: "1.0.0",
Copyright: "(c) 2021 Paul Boocock",
Compiled: time.Now(),
Authors: []cli.Author{
{
Name: "Paul Boocock",
},
},
Action: func(c *cli.Context) error {
filepath := c.Args().Get(0)
if filepath == "" {
return fmt.Errorf("missing file path argument, application must be run as 'anagram /path/to/file.txt'")
}
fmt.Printf("Running with file: %q\n", filepath)
fileReader := reader.NewStringBatchByLengthReader(filepath)
defer fileReader.Close()
if err := fileReader.Open(); err != nil {
return err
}
for currentValues, err := fileReader.Read(); len(currentValues) != 0; currentValues, err = fileReader.Read() {
if err != nil {
return err
}
anagrams, err := anagram.FindAnagrams(currentValues)
if err != nil {
return err
}
if len(anagrams) > 0 {
fmt.Println("----------------------------")
fmt.Printf("Anagrams with %d characters:\n", len(anagrams[0][0]))
for _, anagram := range anagrams {
writer.NewStringSliceFmtWriter(anagram).Write()
}
}
}
return nil
},
}
err := app.Run(os.Args)
if err != nil {
log.Fatal(err)
}
}