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Check for barewords that start with a number

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This commit is contained in:
Jonathan Turner 2019-07-16 05:48:06 +12:00
parent 5261d5f43f
commit bb13c2e234
1 changed files with 28 additions and 11 deletions
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39
src/parser/parse/parser.rs
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@ -80,7 +80,7 @@ pub fn raw_integer(input: NomSpan) -> IResult<NomSpan, Spanned<i64>> {
))
})
}
/*
pub fn integer(input: NomSpan) -> IResult<NomSpan, TokenNode> {
trace_step(input, "integer", move |input| {
let (input, int) = raw_integer(input)?;
@ -88,6 +88,7 @@ pub fn integer(input: NomSpan) -> IResult<NomSpan, TokenNode> {
Ok((input, TokenTreeBuilder::spanned_int(*int, int.span)))
})
}
*/
pub fn operator(input: NomSpan) -> IResult<NomSpan, TokenNode> {
trace_step(input, "operator", |input| {
@ -241,22 +242,37 @@ pub fn raw_unit(input: NomSpan) -> IResult<NomSpan, Spanned<Unit>> {
pub fn size(input: NomSpan) -> IResult<NomSpan, TokenNode> {
trace_step(input, "size", move |input| {
let mut is_size = false;
let start = input.offset;
let (input, int) = raw_integer(input)?;
let (input, unit) = raw_unit(input)?;
let end = input.offset;
if let Ok((input, Some(size))) = opt(raw_unit)(input) {
let end = input.offset;
Ok((
input,
TokenTreeBuilder::spanned_size((*int, *unit), (start, end)),
))
// Check to make sure there is no trailing parseable characters
if let Ok((input, Some(extra))) = opt(bare)(input) {
return Err(nom::Err::Error((input, nom::error::ErrorKind::Char)));
}
Ok((
input,
TokenTreeBuilder::spanned_size((*int, *size), (start, end)),
))
} else {
let end = input.offset;
// Check to make sure there is no trailing parseable characters
if let Ok((input, Some(extra))) = opt(bare)(input) {
return Err(nom::Err::Error((input, nom::error::ErrorKind::Char)));
}
Ok((input, TokenTreeBuilder::spanned_int((*int), (start, end))))
}
})
}
pub fn leaf(input: NomSpan) -> IResult<NomSpan, TokenNode> {
trace_step(input, "leaf", move |input| {
let (input, node) =
alt((size, integer, string, operator, flag, shorthand, var, bare))(input)?;
let (input, node) = alt((size, string, operator, flag, shorthand, var, bare))(input)?;
Ok((input, node))
})
@ -513,6 +529,7 @@ fn int<T>(frag: &str, neg: Option<T>) -> i64 {
fn is_start_bare_char(c: char) -> bool {
match c {
_ if c.is_alphabetic() => true,
_ if c.is_numeric() => true,
'.' => true,
'\\' => true,
'/' => true,
@ -596,12 +613,12 @@ mod tests {
#[test]
fn test_integer() {
assert_leaf! {
parsers [ integer ]
parsers [ size ]
"123" -> 0..3 { Integer(123) }
}
assert_leaf! {
parsers [ integer ]
parsers [ size ]
"-123" -> 0..4 { Integer(-123) }
}
}