regen

README

regen

regen is a go library that creates random strings based on regular expressions.

usage

• limit is the maximum number of times *, + or repeat.
  values smaller than 0 default to 10.

package main

import (
	"fmt"

	"github.com/di-wu/regen"
)

func main() {
    g, err := regen.New(`[01]{5}`)
    if err != nil {
        panic(err)
    }
    for i := 0; i < 5; i++ {
        fmt.Println(g.Generate())
    }
}

00001
01000
11101
11000
10000

cli

• regex (string): regex used to generate strings
• seed (int64) : a certain seed to generate strings
• limit (int) : the amount of iterations of *, + and repetitions
• n (int) : number of regex strings to generate

go run cli/cli.go -regex="[01]{5}" -n=5

Documentation

Index

• type Generator
  • func New(regexp string) (*Generator, error)
  • func (g *Generator) Generate() string
  • func (g *Generator) Limit(value int)
  • func (g *Generator) Seed(seed int64)

Types

type Generator

type Generator struct {
	// contains filtered or unexported fields
}

func New

func New(regexp string) (*Generator, error)

Creates a new generator with given string. Returns an error if the regexp is not valid.

func (*Generator) Generate

func (g *Generator) Generate() string

Generate a random string based on the regexp of the generator.

func (*Generator) Limit

func (g *Generator) Limit(value int)

Limit the amount of iterations of *, + and repetitions.

func (*Generator) Seed

func (g *Generator) Seed(seed int64)

Use a certain seed to generate strings.