Second

1 files changed, 79 insertions, 0 deletions

diff --git a/parser.h b/parser.h
new file mode 100644
index 0000000..d5f4978
--- /dev/null
+++ b/parser.h
@@ -0,0 +1,79 @@
+#pragma once
+
+#include <stdint.h>
+
+typedef enum ASTtype{
+	AST_BLOCK,
+	AST_OP,
+	AST_NUM,
+	AST_STR,
+	AST_VAR,
+	AST_CALL,
+	AST_IF,
+	AST_WHILE,
+} ASTtype;
+
+
+typedef struct AST AST;
+typedef struct ASTblock ASTblock;
+typedef struct ASTop ASTop;
+typedef struct ASTnum ASTnum;
+typedef struct ASTstr ASTstr;
+typedef struct ASTvar ASTvar;
+typedef struct ASTcall ASTcall;
+typedef struct ASTif ASTif;
+typedef struct ASTwhile ASTwhile;
+
+
+struct ASTblock{
+	int len;
+	AST *exprs;
+};
+struct ASTop{
+	const char *op; // Constant string, does not need to be freed
+	AST *left,*right;
+};
+struct ASTnum{
+	bool isint;
+	union {
+		int64_t i;
+		double d;
+	};
+};
+struct ASTstr{
+	int len; // Excludes terminating null char
+	char *str; // May contain null chars before terminating null char
+};
+struct ASTvar{
+	char *name;
+};
+struct ASTcall{
+	char *func;
+	int nargs;
+	AST *args; // Array<AST>
+};
+struct ASTif{
+	AST *cond;
+	AST *thenb,*elseb;
+};
+struct ASTwhile{
+	AST *cond;
+	AST *body;
+};
+
+typedef struct AST{
+	ASTtype type;
+	union {
+		ASTblock b;
+		ASTop o;
+		ASTnum n;
+		ASTstr s;
+		ASTvar v;
+		ASTcall c;
+		ASTif i;
+		ASTwhile w;
+	};
+} AST;
+
+
+AST* parse(const char *source);