nomes.go

// Simple example to read CSV format from nomes.csv at https://brasil.io/dataset/genero-nomes/files/
package main

import (
	"encoding/csv"
	"fmt"
	"os"
	"strconv"
	"strings"
)

type Name struct {
	AlternativeNames []string
	Classification string
	FirstName string
	FrequencyFemale int
	FrequencyMale int
	FrequencyTotal int
	FrequencyGroup int
	GroupName string
	Ratio float32
}

func intOrZero(val string) int {
	if ret, err := strconv.Atoi(val); err == nil {
		return ret
	} else {
		return 0
	}
}

func floatOrZero(val string) float32 {
	if ret, err := strconv.ParseFloat(val, 32); err == nil {
		return float32(ret)
	} else {
		return 0
	}
}

func main() {
	csvFile, err := os.Open("nomes.csv")
	if err != nil {
		fmt.Println(err)
	}
	fmt.Println("Successfully Opened CSV file")
	defer csvFile.Close()

	csvLines, err := csv.NewReader(csvFile).ReadAll()
	if err != nil {
		fmt.Println(err)
	}
	for i, line := range csvLines {
		if i == 0 {
			// skip header
			continue
		}
		name := Name{
			AlternativeNames: strings.Split(line[0], "|"),
			Classification: line[1],
			FirstName: line[2],
			FrequencyFemale: intOrZero(line[3]),
			FrequencyMale:   intOrZero(line[4]),
			FrequencyTotal:  intOrZero(line[5]),
			FrequencyGroup:  intOrZero(line[6]),
			GroupName: line[7],
			Ratio: floatOrZero(line[8]),
		}
		if name.FirstName == "DOMINIC" {
			fmt.Printf("%+v\n", name)
		}
	}
}