* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
- #include "parse.h"
+#include <config.h>
+#include "parse.h"
}
-%option noyywrap bison-locations
+%option nodefault noyywrap bison-locations reentrant never-interactive
+%option extra-type="_Bool"
+%option prefix="cdecl__yy"
+
+%{
+#define lex_error(msg) do { \
+ cdecl__yyerror(yylloc, NULL, NULL, (msg)); \
+ return T_LEX_ERROR; \
+} while(0)
+
+#define dup_token() do { \
+ yylval->strval = malloc(yyleng+1); \
+ if (!yylval->strval) \
+ lex_error("failed to allocate memory"); \
+ strcpy(yylval->strval, yytext); \
+} while(0)
+%}
+
+%s ENGLISH
+
+IDENT [_[:alpha:]][_[:alnum:]]*
+INTEGER 0x[[:xdigit:]]+|0[0-7]+|[[:digit:]]+
%%
+%{
+ if (yyextra) {
+ yyextra = 0;
+ BEGIN(ENGLISH);
+ return T_ENGLISH;
+ }
+%}
+
+"..." return T_ELLIPSIS;
+";" return T_SEMICOLON;
+"*" return T_ASTERISK;
+"(" return T_LPAREN;
+")" return T_RPAREN;
+"[" return T_LBRACKET;
+"]" return T_RBRACKET;
+"," return T_COMMA;
+
+"typedef" return T_TYPEDEF;
+"extern" return T_EXTERN;
+"static" return T_STATIC;
+"auto" return T_AUTO;
+"register" return T_REGISTER;
+
+"restrict" return T_RESTRICT;
+"volatile" return T_VOLATILE;
+"const" return T_CONST;
+
+"inline" return T_INLINE;
+
+"void" return T_VOID;
+"char" return T_CHAR;
+"short" return T_SHORT;
+"int" return T_INT;
+"long" return T_LONG;
+"float" return T_FLOAT;
+"double" return T_DOUBLE;
+"signed" return T_SIGNED;
+"unsigned" return T_UNSIGNED;
+"_Bool" return T_BOOL;
+"_Complex" return T_COMPLEX;
+"_Imaginary" return T_IMAGINARY;
+
+"struct" return T_STRUCT;
+"union" return T_UNION;
+"enum" return T_ENUM;
+
+{INTEGER} {
+ char *end;
+
+ errno = 0;
+ yylval->uintval = strtoumax(yytext, &end, 0);
+ if (errno == ERANGE)
+ lex_error("integer constant out of range");
+ if (*end)
+ lex_error("invalid integer constant");
+
+ return T_UINT;
+}
+
+<ENGLISH>{
+ "variable-length" return T_VLA;
+ "type" return T_TYPE;
+ "declare" return T_DECLARE;
+ "pointer" return T_POINTER;
+ "function" return T_FUNCTION;
+ "returning" return T_RETURNING;
+ "array" return T_ARRAY;
+ "to" return T_TO;
+ "of" return T_OF;
+ "as" return T_AS;
+}
+
+{IDENT} { dup_token(); return T_IDENT; }
+
+[[:space:]]+
+. {
+ char buf[] = "syntax error, unexpected #";
+ *strchr(buf, '#') = *yytext;
+ lex_error(buf);
+}