Finish printing

src/read.h

@@ -5,6 +5,18 @@
 
 #include <stddef.h>
 
+#define READ_EOS -1
+
+static ALWAYS_INLINE bool WHITESPACEP(int c) {
+    return c == ' ' || c == '\t' || c == '\n';
+}
+
+static ALWAYS_INLINE bool SYMBOL_END_P(int c) {
+    return WHITESPACEP(c) || c == READ_EOS || c == '(' || c == ')' || c == '['
+           || c == ']' || c == '\'' || c == '\"' || c == ',' || c == '@'
+           || c == '`' || c == ';';
+}
+
 typedef struct {
     const char *buffer;
     size_t len;