From 0f01f6959c4880d8c85d195ed051f4114c8e9b14 Mon Sep 17 00:00:00 2001
From: Mistivia <i@mistivia.com>
Date: Thu, 19 Jun 2025 22:35:45 +0800
Subject: add readline history

---
 src/main.c   | 1 -
 src/parser.c | 5 +++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main.c b/src/main.c
index 9c05ee5..4fdb5b0 100644
--- a/src/main.c
+++ b/src/main.c
@@ -9,7 +9,6 @@ int main() {
     Interp_init(&interp);
     Parser_init(&parser);
     parser.ctx = &interp;
-
     Parser_set_readline(&parser);
     SExpRef sexp, res;
     ParseResult parse_result;
diff --git a/src/parser.c b/src/parser.c
index 9ed583d..46a94b5 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -5,6 +5,7 @@
 #include <stdarg.h>
 
 #include <readline/readline.h>
+#include <readline/history.h>
 
 #include "sexp.h"
 
@@ -56,6 +57,7 @@ void Parser_set_file(Parser *parser, FILE *fp) {
 }
 
 void Parser_set_readline(Parser *parser) {
+    stifle_history(100);
     parser->parse_type = kParseReadline;
     parser->string = NULL;
     parser->str_cursor = NULL;
@@ -78,6 +80,7 @@ int Parser_getchar(Parser *ctx) {
                 ctx->readline_eof = true;
                 return EOF;
             }
+            if (s[0] != '\0') { add_history(s); }
             ctx->string = s;
             ctx->str_cursor = s;
         }
@@ -87,6 +90,7 @@ int Parser_getchar(Parser *ctx) {
                 ctx->readline_eof = true;
                 return EOF;
             }
+            if (s[0] != '\0') { add_history(s); }
             free((void*)ctx->string);
             ctx->string = s;
             ctx->str_cursor = s;
@@ -117,6 +121,7 @@ int Parser_peek(Parser *ctx) {
                 ctx->readline_eof = true;
                 return EOF;
             }
+            if (s[0] != '\0') { add_history(s); }
             ctx->string = s;
             ctx->str_cursor = s;
         }
-- 
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