feat: update keyword list for C23

1 files changed, 140 insertions, 87 deletions

diff --git a/preprocess.c b/preprocess.c
index 0cf7c27..c2c373f 100644
--- a/preprocess.c
+++ b/preprocess.c
@@ -22,40 +22,16 @@ enum TokenKind {
     TokenKind_pp_directive_pragma,
     TokenKind_pp_directive_undef,
 
-    TokenKind_and,
-    TokenKind_andand,
-    TokenKind_arrow,
-    TokenKind_assign,
-    TokenKind_assign_add,
-    TokenKind_assign_and,
-    TokenKind_assign_div,
-    TokenKind_assign_lshift,
-    TokenKind_assign_mod,
-    TokenKind_assign_mul,
-    TokenKind_assign_or,
-    TokenKind_assign_rshift,
-    TokenKind_assign_sub,
-    TokenKind_assign_xor,
-    TokenKind_brace_l,
-    TokenKind_brace_r,
-    TokenKind_bracket_l,
-    TokenKind_bracket_r,
-    TokenKind_colon,
-    TokenKind_comma,
-    TokenKind_dot,
-    TokenKind_ellipsis,
-    TokenKind_eq,
-    TokenKind_ge,
-    TokenKind_gt,
-    TokenKind_ident,
-    TokenKind_keyword__Bool,
-    TokenKind_keyword__Complex,
-    TokenKind_keyword__Imaginary,
+    // C23: 6.4.1
+    TokenKind_keyword_alignas,
+    TokenKind_keyword_alignof,
     TokenKind_keyword_auto,
+    TokenKind_keyword_bool,
     TokenKind_keyword_break,
     TokenKind_keyword_case,
     TokenKind_keyword_char,
     TokenKind_keyword_const,
+    TokenKind_keyword_constexpr,
     TokenKind_keyword_continue,
     TokenKind_keyword_default,
     TokenKind_keyword_do,
@@ -63,6 +39,7 @@ enum TokenKind {
     TokenKind_keyword_else,
     TokenKind_keyword_enum,
     TokenKind_keyword_extern,
+    TokenKind_keyword_false,
     TokenKind_keyword_float,
     TokenKind_keyword_for,
     TokenKind_keyword_goto,
@@ -70,6 +47,7 @@ enum TokenKind {
     TokenKind_keyword_inline,
     TokenKind_keyword_int,
     TokenKind_keyword_long,
+    TokenKind_keyword_nullptr,
     TokenKind_keyword_register,
     TokenKind_keyword_restrict,
     TokenKind_keyword_return,
@@ -77,14 +55,55 @@ enum TokenKind {
     TokenKind_keyword_signed,
     TokenKind_keyword_sizeof,
     TokenKind_keyword_static,
+    TokenKind_keyword_static_assert,
     TokenKind_keyword_struct,
     TokenKind_keyword_switch,
+    TokenKind_keyword_thread_local,
+    TokenKind_keyword_true,
     TokenKind_keyword_typedef,
+    TokenKind_keyword_typeof,
+    TokenKind_keyword_typeof_unqual,
     TokenKind_keyword_union,
     TokenKind_keyword_unsigned,
     TokenKind_keyword_void,
     TokenKind_keyword_volatile,
     TokenKind_keyword_while,
+    TokenKind_keyword__Atomic,
+    TokenKind_keyword__BitInt,
+    TokenKind_keyword__Complex,
+    TokenKind_keyword__Decimal128,
+    TokenKind_keyword__Decimal32,
+    TokenKind_keyword__Decimal64,
+    TokenKind_keyword__Generic,
+    TokenKind_keyword__Imaginary,
+    TokenKind_keyword__Noreturn,
+
+    TokenKind_and,
+    TokenKind_andand,
+    TokenKind_arrow,
+    TokenKind_assign,
+    TokenKind_assign_add,
+    TokenKind_assign_and,
+    TokenKind_assign_div,
+    TokenKind_assign_lshift,
+    TokenKind_assign_mod,
+    TokenKind_assign_mul,
+    TokenKind_assign_or,
+    TokenKind_assign_rshift,
+    TokenKind_assign_sub,
+    TokenKind_assign_xor,
+    TokenKind_brace_l,
+    TokenKind_brace_r,
+    TokenKind_bracket_l,
+    TokenKind_bracket_r,
+    TokenKind_colon,
+    TokenKind_comma,
+    TokenKind_dot,
+    TokenKind_ellipsis,
+    TokenKind_eq,
+    TokenKind_ge,
+    TokenKind_gt,
+    TokenKind_ident,
     TokenKind_le,
     TokenKind_literal_int,
     TokenKind_literal_str,
@@ -152,66 +171,14 @@ const char* token_kind_stringify(TokenKind k) {
         return "#pragma";
     else if (k == TokenKind_pp_directive_undef)
         return "#undef";
-    else if (k == TokenKind_and)
-        return "&";
-    else if (k == TokenKind_andand)
-        return "&&";
-    else if (k == TokenKind_arrow)
-        return "->";
-    else if (k == TokenKind_assign)
-        return "=";
-    else if (k == TokenKind_assign_add)
-        return "+=";
-    else if (k == TokenKind_assign_and)
-        return "&=";
-    else if (k == TokenKind_assign_div)
-        return "/=";
-    else if (k == TokenKind_assign_lshift)
-        return "<<=";
-    else if (k == TokenKind_assign_mod)
-        return "%=";
-    else if (k == TokenKind_assign_mul)
-        return "*=";
-    else if (k == TokenKind_assign_or)
-        return "|=";
-    else if (k == TokenKind_assign_rshift)
-        return ">>=";
-    else if (k == TokenKind_assign_sub)
-        return "-=";
-    else if (k == TokenKind_assign_xor)
-        return "^=";
-    else if (k == TokenKind_brace_l)
-        return "{";
-    else if (k == TokenKind_brace_r)
-        return "}";
-    else if (k == TokenKind_bracket_l)
-        return "[";
-    else if (k == TokenKind_bracket_r)
-        return "]";
-    else if (k == TokenKind_colon)
-        return ":";
-    else if (k == TokenKind_comma)
-        return ",";
-    else if (k == TokenKind_dot)
-        return ".";
-    else if (k == TokenKind_ellipsis)
-        return "...";
-    else if (k == TokenKind_eq)
-        return "==";
-    else if (k == TokenKind_ge)
-        return ">=";
-    else if (k == TokenKind_gt)
-        return ">";
-    else if (k == TokenKind_ident)
-        return "<identifier>";
-    else if (k == TokenKind_keyword__Bool)
-        return "_Bool";
-    else if (k == TokenKind_keyword__Complex)
-        return "_Complex";
-    else if (k == TokenKind_keyword__Imaginary)
-        return "_Imaginary";
+    else if (k == TokenKind_keyword_alignas)
+        return "alignas";
+    else if (k == TokenKind_keyword_alignof)
+        return "alignof";
     else if (k == TokenKind_keyword_auto)
         return "auto";
+    else if (k == TokenKind_keyword_bool)
+        return "bool";
     else if (k == TokenKind_keyword_break)
         return "break";
     else if (k == TokenKind_keyword_case)
@@ -220,6 +187,8 @@ const char* token_kind_stringify(TokenKind k) {
         return "char";
     else if (k == TokenKind_keyword_const)
         return "const";
+    else if (k == TokenKind_keyword_constexpr)
+        return "constexpr";
     else if (k == TokenKind_keyword_continue)
         return "continue";
     else if (k == TokenKind_keyword_default)
@@ -234,6 +203,8 @@ const char* token_kind_stringify(TokenKind k) {
         return "enum";
     else if (k == TokenKind_keyword_extern)
         return "extern";
+    else if (k == TokenKind_keyword_false)
+        return "false";
     else if (k == TokenKind_keyword_float)
         return "float";
     else if (k == TokenKind_keyword_for)
@@ -248,6 +219,8 @@ const char* token_kind_stringify(TokenKind k) {
         return "int";
     else if (k == TokenKind_keyword_long)
         return "long";
+    else if (k == TokenKind_keyword_nullptr)
+        return "nullptr";
     else if (k == TokenKind_keyword_register)
         return "register";
     else if (k == TokenKind_keyword_restrict)
@@ -262,12 +235,22 @@ const char* token_kind_stringify(TokenKind k) {
         return "sizeof";
     else if (k == TokenKind_keyword_static)
         return "static";
+    else if (k == TokenKind_keyword_static_assert)
+        return "static_assert";
     else if (k == TokenKind_keyword_struct)
         return "struct";
     else if (k == TokenKind_keyword_switch)
         return "switch";
+    else if (k == TokenKind_keyword_thread_local)
+        return "thread_local";
+    else if (k == TokenKind_keyword_true)
+        return "true";
     else if (k == TokenKind_keyword_typedef)
         return "typedef";
+    else if (k == TokenKind_keyword_typeof)
+        return "typeof";
+    else if (k == TokenKind_keyword_typeof_unqual)
+        return "typeof_unqual";
     else if (k == TokenKind_keyword_union)
         return "union";
     else if (k == TokenKind_keyword_unsigned)
@@ -278,6 +261,76 @@ const char* token_kind_stringify(TokenKind k) {
         return "volatile";
     else if (k == TokenKind_keyword_while)
         return "while";
+    else if (k == TokenKind_keyword__Atomic)
+        return "_Atomic";
+    else if (k == TokenKind_keyword__BitInt)
+        return "_BitInt";
+    else if (k == TokenKind_keyword__Complex)
+        return "_Complex";
+    else if (k == TokenKind_keyword__Decimal128)
+        return "_Decimal128";
+    else if (k == TokenKind_keyword__Decimal32)
+        return "_Decimal32";
+    else if (k == TokenKind_keyword__Decimal64)
+        return "_Decimal64";
+    else if (k == TokenKind_keyword__Generic)
+        return "_Generic";
+    else if (k == TokenKind_keyword__Imaginary)
+        return "_Imaginary";
+    else if (k == TokenKind_keyword__Noreturn)
+        return "_Noreturn";
+    else if (k == TokenKind_and)
+        return "&";
+    else if (k == TokenKind_andand)
+        return "&&";
+    else if (k == TokenKind_arrow)
+        return "->";
+    else if (k == TokenKind_assign)
+        return "=";
+    else if (k == TokenKind_assign_add)
+        return "+=";
+    else if (k == TokenKind_assign_and)
+        return "&=";
+    else if (k == TokenKind_assign_div)
+        return "/=";
+    else if (k == TokenKind_assign_lshift)
+        return "<<=";
+    else if (k == TokenKind_assign_mod)
+        return "%=";
+    else if (k == TokenKind_assign_mul)
+        return "*=";
+    else if (k == TokenKind_assign_or)
+        return "|=";
+    else if (k == TokenKind_assign_rshift)
+        return ">>=";
+    else if (k == TokenKind_assign_sub)
+        return "-=";
+    else if (k == TokenKind_assign_xor)
+        return "^=";
+    else if (k == TokenKind_brace_l)
+        return "{";
+    else if (k == TokenKind_brace_r)
+        return "}";
+    else if (k == TokenKind_bracket_l)
+        return "[";
+    else if (k == TokenKind_bracket_r)
+        return "]";
+    else if (k == TokenKind_colon)
+        return ":";
+    else if (k == TokenKind_comma)
+        return ",";
+    else if (k == TokenKind_dot)
+        return ".";
+    else if (k == TokenKind_ellipsis)
+        return "...";
+    else if (k == TokenKind_eq)
+        return "==";
+    else if (k == TokenKind_ge)
+        return ">=";
+    else if (k == TokenKind_gt)
+        return ">";
+    else if (k == TokenKind_ident)
+        return "<identifier>";
     else if (k == TokenKind_le)
         return "le";
     else if (k == TokenKind_literal_int)