feat: add bison grammar for emit, decltype and difference

1 files changed, 5 insertions, 9 deletions

diff --git a/sfinae.l b/sfinae.l
index f969a98..5c67f3c 100644
--- a/sfinae.l
+++ b/sfinae.l
@@ -2,12 +2,13 @@
 
 %{
 #include "lexer.h"
+#include "ast.h"
+#include "parser.h"
 
 #include <stdbool.h>
 #include <stdio.h>
 
 static bool failed = false;
-static char character = '\0';
 
 static char unescape(char escaped)
 {
@@ -24,7 +25,7 @@ static int fail(const char* message)
 {
     (void)fprintf(stderr, "line %d: %s\n", yylineno, message);
     failed = true;
-    return TOK_END;
+    return 0;
 }
 %}
 
@@ -36,8 +37,8 @@ static int fail(const char* message)
 "decltype"              return TOK_DECLTYPE;
 "difference"            return TOK_DIFFERENCE;
 [<>(),;]                return yytext[0];
-'\\.'                   character = unescape(yytext[2]); return TOK_CHAR;
-'.'                     character = yytext[1]; return TOK_CHAR;
+'\\.'                   yylval.character = unescape(yytext[2]); return TOK_CHAR;
+'.'                     yylval.character = yytext[1]; return TOK_CHAR;
 "//"[^\n]*              /* a comment */
 [ \t\r\n]+              /* blanks */
 [0-9]+                  return fail("numeric literals are for the weak, subtract two characters");
@@ -50,8 +51,3 @@ bool lexer_failed(void)
 {
     return failed;
 }
-
-char lexer_character(void)
-{
-    return character;
-}