finish parser

1 files changed, 28 insertions, 0 deletions

diff --git a/src/as_op.c b/src/as_op.c
new file mode 100644
index 0000000..847214d
--- /dev/null
+++ b/src/as_op.c
@@ -0,0 +1,28 @@
+#include "as_op.h"
+
+#include <string.h>
+
+struct opTableEntry{
+    Op op;
+    const char* name;
+};
+typedef struct opTableEntry OpTableEntry;
+
+OpTableEntry opTable[] = {
+    {ADD, "add"},
+    {SUB, "sub"},
+    {MUL, "mul"},
+    {DIV, "div"},
+    {MOD, "mod"},
+    {EQ, "eq"},
+    {OPEND, NULL}
+};
+
+Op str2op(const char* str) {
+    for (int i = 0; opTable[i].name != NULL; i++) {
+        if (strcmp(opTable[i].name, str) == 0) {
+            return opTable[i].op;
+        }
+    }
+    return OPEND;
+}