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fix escape handling, and handle sql wildcards

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This commit is contained in:
Damien Elmes 2020-03-20 09:27:19 +10:00
parent b70668d31c
commit c723adea17
1 changed files with 8 additions and 8 deletions
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16
rslib/src/search/parser.rs
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@ -174,8 +174,8 @@ fn text(s: &str) -> IResult<&str, Node> {
fn search_node_for_text(s: &str) -> ParseResult<SearchNode> {
let mut it = s.splitn(2, ':');
let (head, tail) = (
without_escapes(it.next().unwrap()),
it.next().map(without_escapes),
unescape_quotes(it.next().unwrap()),
it.next().map(unescape_quotes),
);
if let Some(tail) = tail {
@ -185,10 +185,10 @@ fn search_node_for_text(s: &str) -> ParseResult<SearchNode> {
}
}
/// Strip the \ escaping character
fn without_escapes(s: &str) -> Cow<str> {
if s.find('\\').is_some() {
s.replace('\\', "").into()
/// \" -> "
fn unescape_quotes(s: &str) -> Cow<str> {
if s.find(r#"\""#).is_some() {
s.replace(r#"\""#, "\"").into()
} else {
s.into()
}
@ -216,10 +216,10 @@ fn quoted_term(s: &str) -> IResult<&str, Node> {
}
/// Quoted text, terminated by a non-escaped double quote
/// Can escape " and \
/// Can escape %, _, " and \
fn quoted_term_inner(s: &str) -> IResult<&str, Node> {
map_res(
escaped(is_not(r#""\"#), '\\', one_of(r#""\"#)),
escaped(is_not(r#""\"#), '\\', one_of(r#""\%_"#)),
|o| -> ParseResult<Node> { Ok(Node::Search(search_node_for_text(o)?)) },
)(s)
}