magnetar_mmm_parser/src/lib.rs

@@ -6,8 +6,8 @@ use nom::character::complete::{
     alpha1, alphanumeric1, anychar, char as one_char, line_ending, not_line_ending, one_of,
     satisfy, space1, tab,
 };
-use nom::combinator::{eof, fail, map, not, opt, peek, recognize};
-use nom::error::ErrorKind;
+use nom::combinator::{eof, fail, map, not, opt, recognize};
+use nom::error::{ErrorKind, ParseError};
 use nom::multi::{many0, many0_count, many1, many1_count, many_till, separated_list1};
 use nom::sequence::tuple;
 use nom::{IResult, Offset, Parser, Slice};
@@ -273,11 +273,8 @@ fn collect_char_sequence(
 }
 
 #[inline]
-fn space1_unicode(input: Span) -> IResult<Span, Span> {
-    recognize(many1_count(tuple((
-        not(line_ending),
-        satisfy(char::is_whitespace),
-    ))))(input)
+fn alpha1_unicode(input: Span) -> IResult<Span, Span> {
+    recognize(many1_count(satisfy(char::is_alphanumeric)))(input)
 }
 
 #[inline]
@@ -773,14 +770,6 @@ impl Context {
                 }
             }
 
-            if let FlankingRule::Strict = opening_rule {
-                let (input, pre) =
-                    opt(recognize(tuple((alphanumeric1_unicode, &opening_tag))))(input)?;
-                if let Some(pre_text) = pre {
-                    return Ok((input, Token::PlainText(pre_text.into_fragment().into())));
-                }
-            }
-
             let begin = input;
             let (post_open, _) = opening_tag(input)?;
 
@@ -843,12 +832,8 @@ impl Context {
                     true
                 };
 
-            let (input, alphanum) = opt(peek(alphanumeric1_unicode))(input)?;
-            let correct_right_outer =
-                alphanum.is_none() || !matches!(closing_rule, FlankingRule::Strict);
-
-            let correct_flanking =
-                correct_left_flanking && correct_right_flanking && correct_right_outer;
+            // TODO: Unfinished flanking rules
+            let correct_flanking = correct_left_flanking && correct_right_flanking;
 
             if !correct_flanking {
                 return Ok((
@@ -1308,12 +1293,7 @@ impl Context {
     }
 
     fn tag_hashtag<'a>(&self, input: Span<'a>) -> IResult<Span<'a>, Token> {
-        let (input, maybe_preceded) =
-            opt(recognize(tuple((alphanumeric1_unicode, tag("#")))))(input)?;
-
-        if let Some(preceded) = maybe_preceded {
-            return Ok((input, Token::PlainText(preceded.into_fragment().into())));
-        }
+        // TODO: Skip when preceded by alphanumerics
 
         let (input, _) = tag("#")(input)?;
 
@@ -1367,8 +1347,8 @@ impl Context {
                 tag("）"),
             ))),
             recognize(tuple((
-                not(space1_unicode),
-                not(line_ending),
+                not(space1),
+                not_line_ending,
                 not(one_of(".,:;!?#?/[]【】()「」（）<>")),
                 anychar,
             ))),
@@ -1521,20 +1501,6 @@ mod test {
             Token::PlainText("* italic *".into())
         );
 
-        assert_eq!(
-            parse_full("snake_case_variable"),
-            Token::PlainText("snake_case_variable".into())
-        );
-
-        assert_eq!(
-            parse_full("intra*word*italic"),
-            Token::Sequence(vec![
-                Token::PlainText("intra".into()),
-                Token::Italic(Box::new(Token::PlainText("word".into()))),
-                Token::PlainText("italic".into())
-            ])
-        );
-
         assert_eq!(
             parse_full(r#"_ italic *"#),
             Token::PlainText("_ italic *".into())
@@ -1733,20 +1699,6 @@ text</center>"#
             ])
         );
 
-        assert_eq!(
-            parse_full("test #hashtag tail"),
-            Token::Sequence(vec![
-                Token::PlainText("test ".into()),
-                Token::Hashtag("hashtag".into()),
-                Token::PlainText(" tail".into())
-            ])
-        );
-
-        assert_eq!(
-            parse_full("not#hashtag tail"),
-            Token::PlainText("not#hashtag tail".into())
-        );
-
         assert_eq!(
             parse_full("<https://example.com>"),
             Token::UrlNoEmbed("https://example.com".into())