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allow newline where we allow space in query parser #2302

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merged 1 commit into from
Jan 17, 2024
Merged

allow newline where we allow space in query parser #2302

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6 changes: 3 additions & 3 deletions query-grammar/src/infallible.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -81,16 +81,16 @@ where
T: InputTakeAtPosition + Clone,
<T as InputTakeAtPosition>::Item: AsChar + Clone,
{
opt_i(nom::character::complete::space0)(input)
.map(|(left, (spaces, errors))| (left, (spaces.expect("space0 can't fail"), errors)))
opt_i(nom::character::complete::multispace0)(input)
.map(|(left, (spaces, errors))| (left, (spaces.expect("multispace0 can't fail"), errors)))
}

pub(crate) fn space1_infallible<T>(input: T) -> JResult<T, Option<T>>
where
T: InputTakeAtPosition + Clone + InputLength,
<T as InputTakeAtPosition>::Item: AsChar + Clone,
{
opt_i(nom::character::complete::space1)(input).map(|(left, (spaces, mut errors))| {
opt_i(nom::character::complete::multispace1)(input).map(|(left, (spaces, mut errors))| {
if spaces.is_none() {
errors.push(LenientErrorInternal {
pos: left.input_len(),
Expand Down
67 changes: 37 additions & 30 deletions query-grammar/src/query_grammar.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@ use std::iter::once;
use nom::branch::alt;
use nom::bytes::complete::tag;
use nom::character::complete::{
anychar, char, digit1, none_of, one_of, satisfy, space0, space1, u32,
anychar, char, digit1, multispace0, multispace1, none_of, one_of, satisfy, u32,
};
use nom::combinator::{eof, map, map_res, opt, peek, recognize, value, verify};
use nom::error::{Error, ErrorKind};
Expand Down Expand Up @@ -65,7 +65,7 @@ fn word_infallible(delimiter: &str) -> impl Fn(&str) -> JResult<&str, Option<&st
|inp| {
opt_i_err(
preceded(
space0,
multispace0,
recognize(many1(satisfy(|c| {
!c.is_whitespace() && !delimiter.contains(c)
}))),
Expand Down Expand Up @@ -225,10 +225,10 @@ fn term_group(inp: &str) -> IResult<&str, UserInputAst> {

map(
tuple((
terminated(field_name, space0),
terminated(field_name, multispace0),
delimited(
tuple((char('('), space0)),
separated_list0(space1, tuple((opt(occur_symbol), term_or_phrase))),
tuple((char('('), multispace0)),
separated_list0(multispace1, tuple((opt(occur_symbol), term_or_phrase))),
char(')'),
),
)),
Expand All @@ -250,7 +250,7 @@ fn term_group_precond(inp: &str) -> IResult<&str, (), ()> {
(),
peek(tuple((
field_name,
space0,
multispace0,
char('('), // when we are here, we know it can't be anything but a term group
))),
)(inp)
Expand All @@ -259,7 +259,7 @@ fn term_group_precond(inp: &str) -> IResult<&str, (), ()> {

fn term_group_infallible(inp: &str) -> JResult<&str, UserInputAst> {
let (mut inp, (field_name, _, _, _)) =
tuple((field_name, space0, char('('), space0))(inp).expect("precondition failed");
tuple((field_name, multispace0, char('('), multispace0))(inp).expect("precondition failed");

let mut terms = Vec::new();
let mut errs = Vec::new();
Expand Down Expand Up @@ -305,7 +305,7 @@ fn exists(inp: &str) -> IResult<&str, UserInputLeaf> {
UserInputLeaf::Exists {
field: String::new(),
},
tuple((space0, char('*'))),
tuple((multispace0, char('*'))),
)(inp)
}

Expand All @@ -314,7 +314,7 @@ fn exists_precond(inp: &str) -> IResult<&str, (), ()> {
(),
peek(tuple((
field_name,
space0,
multispace0,
char('*'), // when we are here, we know it can't be anything but a exists
))),
)(inp)
Expand All @@ -323,7 +323,7 @@ fn exists_precond(inp: &str) -> IResult<&str, (), ()> {

fn exists_infallible(inp: &str) -> JResult<&str, UserInputAst> {
let (inp, (field_name, _, _)) =
tuple((field_name, space0, char('*')))(inp).expect("precondition failed");
tuple((field_name, multispace0, char('*')))(inp).expect("precondition failed");

let exists = UserInputLeaf::Exists { field: field_name }.into();
Ok((inp, (exists, Vec::new())))
Expand All @@ -349,7 +349,7 @@ fn literal_no_group_infallible(inp: &str) -> JResult<&str, Option<UserInputAst>>
alt_infallible(
(
(
value((), tuple((tag("IN"), space0, char('[')))),
value((), tuple((tag("IN"), multispace0, char('[')))),
map(set_infallible, |(set, errs)| (Some(set), errs)),
),
(
Expand Down Expand Up @@ -430,8 +430,8 @@ fn range(inp: &str) -> IResult<&str, UserInputLeaf> {
// check for unbounded range in the form of <5, <=10, >5, >=5
let elastic_unbounded_range = map(
tuple((
preceded(space0, alt((tag(">="), tag("<="), tag("<"), tag(">")))),
preceded(space0, range_term_val()),
preceded(multispace0, alt((tag(">="), tag("<="), tag("<"), tag(">")))),
preceded(multispace0, range_term_val()),
)),
|(comparison_sign, bound)| match comparison_sign {
">=" => (UserInputBound::Inclusive(bound), UserInputBound::Unbounded),
Expand All @@ -444,7 +444,7 @@ fn range(inp: &str) -> IResult<&str, UserInputLeaf> {
);

let lower_bound = map(
separated_pair(one_of("{["), space0, range_term_val()),
separated_pair(one_of("{["), multispace0, range_term_val()),
|(boundary_char, lower_bound)| {
if lower_bound == "*" {
UserInputBound::Unbounded
Expand All @@ -457,7 +457,7 @@ fn range(inp: &str) -> IResult<&str, UserInputLeaf> {
);

let upper_bound = map(
separated_pair(range_term_val(), space0, one_of("}]")),
separated_pair(range_term_val(), multispace0, one_of("}]")),
|(upper_bound, boundary_char)| {
if upper_bound == "*" {
UserInputBound::Unbounded
Expand All @@ -469,8 +469,11 @@ fn range(inp: &str) -> IResult<&str, UserInputLeaf> {
},
);

let lower_to_upper =
separated_pair(lower_bound, tuple((space1, tag("TO"), space1)), upper_bound);
let lower_to_upper = separated_pair(
lower_bound,
tuple((multispace1, tag("TO"), multispace1)),
upper_bound,
);

map(
alt((elastic_unbounded_range, lower_to_upper)),
Expand All @@ -490,13 +493,16 @@ fn range_infallible(inp: &str) -> JResult<&str, UserInputLeaf> {
word_infallible("]}"),
space1_infallible,
opt_i_err(
terminated(tag("TO"), alt((value((), space1), value((), eof)))),
terminated(tag("TO"), alt((value((), multispace1), value((), eof)))),
"missing keyword TO",
),
word_infallible("]}"),
opt_i_err(one_of("]}"), "missing range delimiter"),
)),
|((lower_bound_kind, _space0, lower, _space1, to, upper, upper_bound_kind), errs)| {
|(
(lower_bound_kind, _multispace0, lower, _multispace1, to, upper, upper_bound_kind),
errs,
)| {
let lower_bound = match (lower_bound_kind, lower) {
(_, Some("*")) => UserInputBound::Unbounded,
(_, None) => UserInputBound::Unbounded,
Expand Down Expand Up @@ -596,10 +602,10 @@ fn range_infallible(inp: &str) -> JResult<&str, UserInputLeaf> {
fn set(inp: &str) -> IResult<&str, UserInputLeaf> {
map(
preceded(
tuple((space0, tag("IN"), space1)),
tuple((multispace0, tag("IN"), multispace1)),
delimited(
tuple((char('['), space0)),
separated_list0(space1, map(simple_term, |(_, term)| term)),
tuple((char('['), multispace0)),
separated_list0(multispace1, map(simple_term, |(_, term)| term)),
char(']'),
),
),
Expand Down Expand Up @@ -667,7 +673,7 @@ fn leaf(inp: &str) -> IResult<&str, UserInputAst> {
alt((
delimited(char('('), ast, char(')')),
map(char('*'), |_| UserInputAst::from(UserInputLeaf::All)),
map(preceded(tuple((tag("NOT"), space1)), leaf), negate),
map(preceded(tuple((tag("NOT"), multispace1)), leaf), negate),
literal,
))(inp)
}
Expand Down Expand Up @@ -919,17 +925,17 @@ fn aggregate_infallible_expressions(

fn operand_leaf(inp: &str) -> IResult<&str, (BinaryOperand, UserInputAst)> {
tuple((
terminated(binary_operand, space0),
terminated(boosted_leaf, space0),
terminated(binary_operand, multispace0),
terminated(boosted_leaf, multispace0),
))(inp)
}

fn ast(inp: &str) -> IResult<&str, UserInputAst> {
let boolean_expr = map(
separated_pair(boosted_leaf, space1, many1(operand_leaf)),
separated_pair(boosted_leaf, multispace1, many1(operand_leaf)),
|(left, right)| aggregate_binary_expressions(left, right),
);
let whitespace_separated_leaves = map(separated_list1(space1, occur_leaf), |subqueries| {
let whitespace_separated_leaves = map(separated_list1(multispace1, occur_leaf), |subqueries| {
if subqueries.len() == 1 {
let (occur_opt, ast) = subqueries.into_iter().next().unwrap();
match occur_opt.unwrap_or(Occur::Should) {
Expand All @@ -942,9 +948,9 @@ fn ast(inp: &str) -> IResult<&str, UserInputAst> {
});

delimited(
space0,
multispace0,
alt((boolean_expr, whitespace_separated_leaves)),
space0,
multispace0,
)(inp)
}

Expand All @@ -969,7 +975,7 @@ fn ast_infallible(inp: &str) -> JResult<&str, UserInputAst> {
}

pub fn parse_to_ast(inp: &str) -> IResult<&str, UserInputAst> {
map(delimited(space0, opt(ast), eof), |opt_ast| {
map(delimited(multispace0, opt(ast), eof), |opt_ast| {
rewrite_ast(opt_ast.unwrap_or_else(UserInputAst::empty_query))
})(inp)
}
Expand Down Expand Up @@ -1145,6 +1151,7 @@ mod test {
#[test]
fn test_parse_query_to_ast_binary_op() {
test_parse_query_to_ast_helper("a AND b", "(+a +b)");
test_parse_query_to_ast_helper("a\nAND b", "(+a +b)");
test_parse_query_to_ast_helper("a OR b", "(?a ?b)");
test_parse_query_to_ast_helper("a OR b AND c", "(?a ?(+b +c))");
test_parse_query_to_ast_helper("a AND b AND c", "(+a +b +c)");
Expand Down
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