Skip to content

Atualização na validação do CNPJ para a regra de alfanumérico #31

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
paemuri merged 2 commits into from
Jun 21, 2025
+30 −4
Merged

Atualização na validação do CNPJ para a regra de alfanumérico #31

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
9d06249
Implement alphanumeric CNPJ validations
hhendrikk May 14, 2025
051b315
Refactor alphanumeric CNPJ code
paemuri Jun 21, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
19 changes: 15 additions & 4 deletions cpfcnpj.go
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,17 +1,17 @@
package brdoc

import (
"bytes"
"regexp"
"strconv"
"unicode"
)

// "Cadastro" will be used internally to define both CPF and CNPJ.

var (
cpfRegexp = regexp.MustCompile(`^\d{3}\.?\d{3}\.?\d{3}-?\d{2}$`)
cnpjRegexp = regexp.MustCompile(
`^\d{2}\.?\d{3}\.?\d{3}\/?(:?\d{3}[1-9]|\d{2}[1-9]\d|\d[1-9]\d{2}|[1-9]\d{3})-?\d{2}$`,
)
cnpjRegexp = regexp.MustCompile(`^[0-9A-Z]{2}\.?[0-9A-Z]{3}\.?[0-9A-Z]{3}/?[0-9A-Z]{4}-?[0-9]{2}$`)
)

// IsCPF verifies if the given string is a valid CPF document.
Expand Down Expand Up @@ -46,7 +46,7 @@ func isCadastro(
return false
}

cleanNonDigits(&doc)
cleanCadastro(&doc)

// Invalidates documents with all digits equal.
if allEq(doc) {
Expand Down Expand Up @@ -81,3 +81,14 @@ func calcCadastroDigit(doc string, position int) string {

return strconv.Itoa(11 - sum)
}

func cleanCadastro(doc *string) {
buf := bytes.NewBufferString("")
for _, r := range *doc {
if unicode.IsDigit(r) || unicode.IsLetter(r) {
buf.WriteRune(r)
}
}

*doc = buf.String()
}
15 changes: 15 additions & 0 deletions cpfcnpj_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,8 @@ func TestIsCPF(t *testing.T) {
{"InvalidFormat", "099-075-865.60", false},

{"Valid", "248.438.034-80", true},
{"Valid", "099.075.865-60", true},
{"Valid", "24843803480", true},
{"Valid", "09907586560", true},
} {
t.Run(testName(i, tc.name), func(t *testing.T) {
Expand Down Expand Up @@ -63,12 +65,25 @@ func TestIsCNPJ(t *testing.T) {

{"InvalidDigits", "26.637.142/0001-85", false},
{"InvalidDigits", "74.221.325/0001-03", false},
{"InvalidDigits", "WE.0PP.M5F/0001-92", false},

{"InvalidFormat", "26-637-142.0001/58", false},
{"InvalidFormat", "74-221-325.0001/30", false},

{"Valid", "26.637.142/0001-58", true},
{"Valid", "74.221.325/0001-30", true},
{"Valid", "19.JA2.KO8/Z001-51", true},
{"Valid", "SC.RCN.1NI/0001-30", true},
{"Valid", "4Y.2OP.G99/0001-41", true},
{"Valid", "WE.0PP.M4F/0001-91", true},
{"Valid", "12.ABC.345/01DE-35", true},
{"Valid", "26637142000158", true},
{"Valid", "74221325000130", true},
{"Valid", "19JA2KO8Z00151", true},
{"Valid", "SCRCN1NI000130", true},
{"Valid", "4Y2OPG99000141", true},
{"Valid", "WE0PPM4F000191", true},
{"Valid", "12ABC34501DE35", true},
} {
t.Run(testName(i, tc.name), func(t *testing.T) {
assertEq(t, tc.valid, IsCNPJ(tc.doc))
Expand Down