Fix segfault in tokenizevarkw

Also added debug flags to CFLAGS and added little testing thing in main.c.

Makefile

@@ -1,7 +1,7 @@
 .POSIX:
 
 CC	= tcc
-CFLAGS	= -Wall -Wunsupported -Wwrite-strings
+CFLAGS	= -Wall -Wunsupported -Wwrite-strings -b -g
 OBJ	= main.o token.o
 
 all: woody

main.c

@@ -1,8 +1,41 @@
+#include <stdint.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include "token.h"
+
+/* placeholder testing function before I setup test suite */
+static void
+test(void)
+{
+	struct tokenstate ts;
+	ts.tokensz = 8;
+	ts.tokens = malloc(8 * sizeof(struct token *));
+	if (ts.tokens == NULL) {
+		perror("main test");
+		exit(EXIT_FAILURE);
+	}
+	ts.tokens[0] = malloc(1024 * sizeof(struct token));
+	if (ts.tokens[0] == NULL) {
+		perror("main test");
+		exit(EXIT_FAILURE);
+	}
+
+	ts.filename = "<input>";
+	ts.fh = stdin;
+
+	ts.tokenblk = 0;
+	ts.tokenind = 0;
+
+	ts.col = 0;
+	ts.line = 1;
+	ts.pos = 0;
+
+	tokenize(&ts);
+}
 
 int
 main(int argc, char *argv[])
 {
-	puts("hello, world");
+	test();
 	return 0;
 }

token.c

@@ -150,8 +150,8 @@ tokenizevarkw(struct token *token, struct tokenstate *ts)
 	}
 
 	/* read the var/kw */
-	for (int i = 0; i < 32 && isalpha(ts->look)
-			&& isdigit(ts->look); i++) {
+	for (i = 0; i < 32 && (isalpha(ts->look)
+			|| isdigit(ts->look)); i++) {
 		buf[i] = ts->look;
 		getch(ts);
 	}