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validator.v
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validator.v
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// CUSTOM SIMPLE VALIDATORS
module vargus
// valid_number is a number validator
fn valid_number(y string) bool {
mut temp_valid := false
for k, i in y {
if i.is_digit() {
temp_valid = true
} else {
// a dash should only be in the beginning
if k == 0 && i == `-` {
temp_valid = true
} else {
temp_valid = false
break // stop loop once false
}
}
}
return temp_valid
}
// int_validator is a simple validator for integer strings
fn int_validator(x string) bool {
// integers do not contain '.'
if x.contains('.') {
return false
}
return valid_number(x)
}
// float_validator is a simple validator for float strings
// TODO: IMPROVE THIS ONE
fn float_validator(x string) bool {
// float numbers should contain only a single '.'
if x.count('.') > 1 {
return false
}
return valid_number(x.replace('.', '').replace('e', ''))
}
// bool_validator is a smple validator for bool strings
fn bool_validator(x string) bool {
if x == 'false' || x == 'true' {
return true
}
return false
}