Fix embedding text that coincidentally matches org-mode object syntax inside a LaTeX environment.

I was using the plain_text matcher before which adds its own exit condition that does not apply to LaTeX environments.

src/parser/latex_environment.rs

@@ -2,10 +2,13 @@ use nom::branch::alt;
 use nom::bytes::complete::tag;
 use nom::bytes::complete::tag_no_case;
 use nom::bytes::complete::take_while1;
+use nom::character::complete::anychar;
 use nom::character::complete::line_ending;
 use nom::character::complete::space0;
 use nom::combinator::eof;
-use nom::combinator::map;
+use nom::combinator::peek;
+use nom::combinator::recognize;
+use nom::multi::many_till;
 use nom::sequence::tuple;
 
 use super::util::get_consumed;
@@ -15,7 +18,7 @@ use crate::parser::exiting::ExitClass;
 use crate::parser::parser_context::ContextElement;
 use crate::parser::parser_context::ExitMatcherNode;
 use crate::parser::parser_with_context::parser_with_context;
-use crate::parser::plain_text::plain_text;
+use crate::parser::util::exit_matcher_parser;
 use crate::parser::util::start_of_line;
 use crate::parser::LatexEnvironment;
 
@@ -41,9 +44,7 @@ pub fn latex_environment<'r, 's>(
             exit_matcher: &latex_environment_end_specialized,
         }));
 
-    let (remaining, _contents) = map(parser_with_context!(plain_text)(&parser_context), |obj| {
-        obj.source
-    })(remaining)?;
+    let (remaining, _contents) = contents(&latex_environment_end_specialized, context, remaining)?;
     let (remaining, _end) = latex_environment_end_specialized(&parser_context, remaining)?;
 
     let source = get_consumed(input, remaining);
@@ -55,6 +56,23 @@ fn name<'s>(input: &'s str) -> Res<&'s str, &'s str> {
     take_while1(|c: char| c.is_alphanumeric() || c == '*')(input)
 }
 
+#[tracing::instrument(ret, level = "debug", skip(end_matcher))]
+pub fn contents<'r, 's, F: Fn(Context<'r, 's>, &'s str) -> Res<&'s str, &'s str>>(
+    end_matcher: F,
+    context: Context<'r, 's>,
+    input: &'s str,
+) -> Res<&'s str, &'s str> {
+    let (remaining, source) = recognize(many_till(
+        anychar,
+        peek(alt((
+            parser_with_context!(exit_matcher_parser)(context),
+            parser_with_context!(end_matcher)(context),
+        ))),
+    ))(input)?;
+
+    Ok((remaining, source))
+}
+
 fn latex_environment_end(
     current_name: &str,
 ) -> impl for<'r, 's> Fn(Context<'r, 's>, &'s str) -> Res<&'s str, &'s str> {