Add token kind matching lexer function

This function reads the next token, compares its kind to a parameter and
returns a boolean indicating whether it matched. If it did not match,
the token is pushed back into the lexer for later reuse.

1 files changed, 1 insertions, 0 deletions

diff --git a/include/lex.h b/include/lex.h
index 8b1fdf2..ba1596d 100644
--- a/include/lex.h
+++ b/include/lex.h
@@ -124,5 +124,6 @@ void lex_finish(struct lexer *lexer);
 
 enum lexical_token lex(struct lexer *lexer, struct token *out);
 void unlex(struct lexer *lexer, const struct token *in);
+bool match(struct lexer *lexer, enum lexical_token token);
 
 #endif