remove grmtools

the parser using grmtools was way oversized for just doing escape
sequences, and only really existed since I wanted to play around with
it.

The new implementation depends on no external crates, uses just an iter
wrapped into a nicely composable function, and appears to be exactly
equivalent (but faster).

1 files changed, 2 insertions, 2 deletions

diff --git a/symbolmacro/src/lib.rs b/symbolmacro/src/lib.rs
index f99ccd9..636c786 100644
--- a/symbolmacro/src/lib.rs
+++ b/symbolmacro/src/lib.rs
@@ -39,14 +39,14 @@ pub fn make_symbols(_item: TokenStream) -> TokenStream {
     let symbols = fetchsymbols();
 
     format!(
-        "fn symbol(key: &str) -> Option<&'static str> {{
+        "fn symbol(key: &str) -> Option<char> {{
           match key {{
              {}
              _ => None
           }}
         }}",
         symbols.iter()
-               .map(|(k,v)| format!("\"{}\" => Some(\"{}\"),",k,v))
+               .map(|(k,v)| format!("\"{}\" => Some(\'{}\'),",k,v))
                .collect::<Vec<_>>()
                .join("\n")
     ).parse().unwrap()