delete tree_builder, driver and serialize

1 files changed, 0 insertions, 13 deletions

diff --git a/src/util/str.rs b/src/util/str.rs
index b2eb41a..c0f89f0 100644
--- a/src/util/str.rs
+++ b/src/util/str.rs
@@ -8,13 +8,6 @@
 // except according to those terms.
 
 use mac::{_tt_as_expr_hack, matches};
-use std::fmt;
-
-pub fn to_escaped_string<T: fmt::Debug>(x: &T) -> String {
-    // FIXME: don't allocate twice
-    let string = format!("{:?}", x);
-    string.chars().flat_map(|c| c.escape_default()).collect()
-}
 
 /// If `c` is an ASCII letter, return the corresponding lowercase
 /// letter, otherwise None.
@@ -31,12 +24,6 @@ pub fn is_ascii_alnum(c: char) -> bool {
     matches!(c, '0'..='9' | 'a'..='z' | 'A'..='Z')
 }
 
-/// ASCII whitespace characters, as defined by
-/// tree construction modes that treat them specially.
-pub fn is_ascii_whitespace(c: char) -> bool {
-    matches!(c, '\t' | '\r' | '\n' | '\x0C' | ' ')
-}
-
 #[cfg(test)]
 #[allow(non_snake_case)]
 mod test {