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#[macro_export]
macro_rules! impl_text_input_with_stringops {
($text_input: ident, $type_name: literal, $type: ty) => {
impl_text_input_with_stringops!(
$text_input,
|_e| structform::ParseError::InvalidFormat {
required_type: $type_name.to_string()
},
$type
);
};
($text_input: ident, $type: ty) => {
impl_text_input_with_stringops!(
$text_input,
|e| structform::ParseError::FromStrError(e.to_string()),
$type
);
};
($text_input: ident, $handle_error: expr, $type: ty) => {
impl structform::ParseAndFormat<$type> for $text_input<$type> {
fn parse(value: &str) -> Result<$type, structform::ParseError> {
let trimmed = value.trim();
if trimmed.is_empty() {
Err(structform::ParseError::Required)
} else {
trimmed.parse::<$type>().map_err($handle_error)
}
}
fn format(value: &$type) -> String {
value.to_string()
}
}
impl structform::ParseAndFormat<Option<$type>> for $text_input<Option<$type>> {
fn parse(value: &str) -> Result<Option<$type>, structform::ParseError> {
let trimmed = value.trim();
if trimmed.is_empty() {
Ok(None)
} else {
trimmed
.parse::<$type>()
.map(Option::Some)
.map_err(|e| structform::ParseError::FromStrError(e.to_string()))
}
}
fn format(value: &Option<$type>) -> String {
match value {
None => "".to_string(),
Some(inner) => inner.to_string(),
}
}
}
};
}
#[macro_export]
macro_rules! impl_vec_text_input_with_stringops {
($text_input: ident, $type_name: literal, $type: ty) => {
impl_vec_text_input_with_stringops!(
$text_input,
|_e| structform::ParseError::InvalidFormat {
required_type: $type_name.to_string()
},
$type
);
};
($text_input: ident, $type: ty) => {
impl_vec_text_input_with_stringops!(
$text_input,
|e| structform::ParseError::FromStrError(e.to_string()),
$type
);
};
($text_input: ident, $handle_error: expr, $type: ty) => {
impl structform::ParseAndFormat<Vec<$type>> for $text_input<Vec<$type>> {
fn parse(value: &str) -> Result<Vec<$type>, structform::ParseError> {
value
.trim()
.split(',')
.map(|s| s.trim())
.filter(|s| !s.is_empty())
.map(|trimmed| trimmed.parse::<$type>().map_err($handle_error))
.collect()
}
fn format(value: &Vec<$type>) -> String {
value
.iter()
.map(|value| value.to_string())
.collect::<Vec<_>>()
.join(", ")
}
}
};
}