M Makefile → Makefile

@@ -6,10 +6,10 @@ hex: hex.c
 	$(CC) $(CFLAGS) $(LDFLAGS) $< -o hex
 
 web/assets/hex.wasm: hex.c
-	 emcc -O2 -sASYNCIFY -DBROWSER -sEXPORTED_RUNTIME_METHODS=stringToUTF8 hex.c -o web/assets/hex.js --pre-js web/assets/hex-playground.js
+	 emcc -O2 -sASYNCIFY -sEXPORTED_RUNTIME_METHODS=stringToUTF8 hex.c -o web/assets/hex.js --pre-js web/assets/hex-playground.js
 
 hex.wasm: hex.c
-	 emcc -O2 hex.c -o hex.js
+	 emcc -O2 -sASYNCIFY -sEXPORTED_RUNTIME_METHODS=stringToUTF8 hex.c -o hex.js --pre-js hex.node.js
 
 ape: hex.c
 	cosmocc $(CFLAGS) $(LDFLAGS) $< -o hex

M hex.c → hex.c

@@ -1,6 +1,6 @@ 
 #include "hex.h"
 
-#if defined(__EMSCRIPTEN__) && defined(BROWSER)
+#if defined(__EMSCRIPTEN__)
 #include <emscripten.h>
 
 EM_ASYNC_JS(char *, em_fgets, (const char *buf, size_t bufsize), {
@@ -1272,7 +1272,7 @@ {
 
     char input[HEX_STDIN_BUFFER_SIZE]; // Buffer to store the input (adjust size if needed)
     char *p = input;
-#if defined(__EMSCRIPTEN__) && defined(BROWSER)
+#if defined(__EMSCRIPTEN__)
     p = em_fgets(input, 1024);
 #else
     p = fgets(input, sizeof(input), stdin);
@@ -3883,13 +3883,26 @@ 
     fclose(file);
     return content;
 }
-#if defined(__EMSCRIPTEN__) && defined(BROWSER)
+
+#if defined(BROWSER)
+static void prompt()
+{
+    // no prompt needed on browser
+}
+#else
+static void prompt()
+{
+    printf("> "); // Prompt
+    fflush(stdout);
+}
+#endif
 
+#if defined(__EMSCRIPTEN__)
 static void do_repl(void *v_ctx)
 {
     hex_context_t *ctx = (hex_context_t *)v_ctx;
+    prompt();
     char line[1024];
-
     char *p = line;
     p = em_fgets(line, 1024);
     if (!p)
@@ -3918,8 +3931,7 @@ static int do_repl(void *v_ctx)
 {
     hex_context_t *ctx = (hex_context_t *)v_ctx;
     char line[1024];
-    printf("> "); // Prompt
-    fflush(stdout);
+    prompt();
     if (fgets(line, sizeof(line), stdin) == NULL)
     {
         printf("\n"); // Handle EOF (Ctrl+D)
@@ -3945,12 +3957,11 @@ 
 // REPL implementation
 void hex_repl(hex_context_t *ctx)
 {
-#if defined(__EMSCRIPTEN__) && defined(BROWSER)
+#if defined(__EMSCRIPTEN__)
     printf("   _*_ _\n");
     printf("  / \\hex\\*\n");
     printf(" *\\_/_/_/  v%s - WASM Build\n", HEX_VERSION);
     printf("      *\n");
-
     int fps = 0;
     int simulate_infinite_loop = 1;
     emscripten_set_main_loop_arg(do_repl, ctx, fps, simulate_infinite_loop);
@@ -4114,7 +4125,7 @@ return 0;
             }
         }
     }
-#if !(__EMSCRIPTEN__) && !(BROWSER)
+#if !(__EMSCRIPTEN__)
     if (!isatty(fileno(stdin)))
     {
         ctx.settings.stack_trace_enabled = 0;

A hex.node.js

@@ -0,0 +1,16 @@ 
+const readline = require('readline');
+const rl = readline.createInterface({
+    input: process.stdin,
+    output: process.stdout,
+});
+
+Module.pending_fgets = [];
+Module.pending_lines = [];
+
+rl.on('line', (line) => {
+    Module.pending_lines.push(line);
+    if (Module.pending_fgets.length > 0 && Module.pending_lines.length > 0) {
+        const resolver = Module.pending_fgets.shift();
+        resolver(Module.pending_lines.shift());
+    }
+});