From c899a530f99d44db7c30c0eb0b4ba0d5f6a2cb8c Mon Sep 17 00:00:00 2001
From: nishi <nishi@0f02c867-ac3d-714e-8a88-971ba1f6efcf>
Date: Sun, 5 May 2024 16:45:33 +0000
Subject: [PATCH] condition works

git-svn-id: file:///raid/svn-main/nishi-serenade/trunk@110 0f02c867-ac3d-714e-8a88-971ba1f6efcf
---
 Serenade/interpreter.c | 54 ++++++++++++++++++++++++++++++++++++++++++
 Serenade/parser.c      |  2 +-
 2 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/Serenade/interpreter.c b/Serenade/interpreter.c
index 60faa41..4cc8375 100644
--- a/Serenade/interpreter.c
+++ b/Serenade/interpreter.c
@@ -94,6 +94,57 @@ struct sn_generic* cond_handler(struct sn_interpreter* sn, int args, struct sn_g
 	return gen;
 }
 
+struct sn_generic* cond1_handler(struct sn_interpreter* sn, int args, struct sn_generic** gens) {
+	struct sn_generic* gen = malloc(sizeof(struct sn_generic));
+	gen->type = SN_TYPE_DOUBLE;
+	gen->number = 0;
+	int i;
+	if(args != 2 || !(gens[1]->type == SN_TYPE_DOUBLE)) {
+		gen->number = -1;
+	} else {
+		double a = gens[1]->number;
+		if(strcmp(gens[0]->name, "not") == 0) {
+			gen->number = a == 0 ? 1 : 0;
+		}
+	}
+	return gen;
+}
+
+struct sn_generic* condn_handler(struct sn_interpreter* sn, int args, struct sn_generic** gens) {
+	struct sn_generic* gen = malloc(sizeof(struct sn_generic));
+	gen->type = SN_TYPE_DOUBLE;
+	gen->number = 0;
+	int i;
+	if(args < 2) {
+		gen->number = -1;
+	} else {
+		int i;
+		for(i = 1; i < args; i++){
+			if(gens[i]->type != SN_TYPE_DOUBLE){
+				gen->number = -1;
+				return gen;
+			}
+		}
+		if(strcmp(gens[0]->name, "or") == 0) {
+			for(i = 1; i < args; i++){
+				if(gens[i]->number != 0){
+					gen->number = 1;
+					break;
+				}
+			}
+		}else if(strcmp(gens[0]->name, "and") == 0) {
+			gen->number = 1;
+			for(i = 1; i < args; i++){
+				if(gens[i]->number == 0){
+					gen->number = 0;
+					break;
+				}
+			}
+		}
+	}
+	return gen;
+}
+
 struct sn_generic* print_handler(struct sn_interpreter* sn, int args, struct sn_generic** gens) {
 	struct sn_generic* gen = malloc(sizeof(struct sn_generic));
 	int i;
@@ -178,6 +229,9 @@ void sn_stdlib_init(struct sn_interpreter* sn) {
 	sn_set_handler(sn, ">=", cond_handler);
 	sn_set_handler(sn, "<", cond_handler);
 	sn_set_handler(sn, ">", cond_handler);
+	sn_set_handler(sn, "not", cond1_handler);
+	sn_set_handler(sn, "or", condn_handler);
+	sn_set_handler(sn, "and", condn_handler);
 	sn_set_handler(sn, "print", print_handler);
 	sn_set_handler(sn, "eval", eval_handler);
 	sn_set_handler(sn, "define-variable", defvar_handler);
diff --git a/Serenade/parser.c b/Serenade/parser.c
index d23a7df..930cf39 100644
--- a/Serenade/parser.c
+++ b/Serenade/parser.c
@@ -162,7 +162,7 @@ struct sn_generic* sn_expr_parse(char* data, unsigned long long size) {
 				free(tmp);
 
 				if(argbufmode == SN_TYPE_VOID) {
-					if(c == '.' || (c >= '0' && c <= '9')) {
+					if(c == '.' || c == '-' || (c >= '0' && c <= '9')) {
 						argbufmode = SN_TYPE_DOUBLE;
 					} else if(index_stack[br - 1] == 0) {
 						argbufmode = SN_TYPE_FUNCTION;
-- 
2.43.0