parser done

1 files changed, 62 insertions, 0 deletions

diff --git a/src/value.h b/src/value.h
new file mode 100644
index 0000000..60d2c43
--- /dev/null
+++ b/src/value.h
@@ -0,0 +1,62 @@
+#ifndef LITERAL_H
+#define LITERAL_H
+
+typedef struct value *value_t;
+
+struct literal {
+    enum literal_type {
+        LITERAL_STRING,
+        LITERAL_NUM_INT,
+        LITERAL_NUM_FLOAT
+    } type;
+
+    union {
+        char *string;
+        long num_int;
+        float num_float;
+    };
+};
+
+// struct pair {
+// };
+// struct proc {
+// };
+
+struct value {
+    enum value_type {
+        VALUE_SYMBOL,
+        VALUE_LITERAL,
+        VALUE_PAIR,
+        VALUE_LIST,
+        VALUE_PROC,
+        VALUE_TYPES
+    } type;
+
+    int references;
+
+    union {
+        char *symbol;
+        struct literal literal;
+        // struct pair pair;
+        // struct pari list;
+        // struct proc_t proc;
+    };
+};
+
+// try to save data as a literal
+// returns a value_t on success and NULL on fail
+// ret is set to: 0 on sucess, > 0 on fail (data isnt this type),
+//                and < 0 on error
+value_t value_create(enum value_type type, void *data, int *ret);
+
+// returns a value_t on success
+value_t value_copy(value_t value);
+
+// destroys a value
+void value_destroy(value_t value);
+
+// copy a string version of the value the buf[buf_sz]
+// returns buf on success
+char *value_string(value_t value, char *buf, size_t buf_sz);
+
+#endif