More fun with scripts/play.fun. No core code logic changes. (0.41.5)

CMakeLists.txt

@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.10)
-project(fun VERSION 0.41.4 LANGUAGES C)
+project(fun VERSION 0.41.5 LANGUAGES C)
 
 set(CMAKE_C_STANDARD 99)
 set(CMAKE_C_STANDARD_REQUIRED ON)

scripts/play

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Wrapper to run scripts/play.fun without requiring 'fun' on PATH.
+# Honors FUN_BIN if provided, otherwise auto-detects a local build, then PATH.
+
+ROOT="$(cd "$(dirname "$0")"/.. && pwd)"
+PLAY_FUN="$ROOT/scripts/play.fun"
+
+BIN="${FUN_BIN:-}"
+if [[ -z "$BIN" ]]; then
+  # Try common local build locations
+  for cand in \
+    "$ROOT/build/fun" \
+    "$ROOT/build_debug/fun" \
+    "$ROOT/build_release/fun" \
+    "$ROOT/fun"; do
+    if [[ -x "$cand" ]]; then
+      BIN="$cand"
+      break
+    fi
+  done
+fi
+
+if [[ -z "$BIN" ]]; then
+  if command -v fun >/dev/null 2>&1; then
+    BIN="fun"
+  else
+    echo "error: fun interpreter not found. Set FUN_BIN or build it (e.g., CMake)." >&2
+    exit 2
+  fi
+fi
+
+# Ensure stdlib is discoverable unless user overrides
+if [[ -z "${FUN_LIB_DIR:-}" ]]; then
+  export FUN_LIB_DIR="$ROOT/lib"
+fi
+
+exec "$BIN" "$PLAY_FUN" "$@"

scripts/play.fun

@@ -18,6 +18,46 @@
 #include <cli.fun>
 #include <strings.fun>
 
+// Early argv scan so --help exits before any other side effects
+raw_argv = argv()
+yes_all = 0
+no_all = 0
+want_help = 0
+idx = 0
+argc = len(raw_argv)
+while (idx < argc)
+  tok = raw_argv[idx]
+  if (tok == "--yes")
+    yes_all = 1
+  else if (tok == "--no")
+    no_all = 1
+  else if (tok == "--help")
+    want_help = 1
+  idx = idx + 1
+
+if (want_help == 1)
+  print("Usage: scripts/play.fun [--yes | --no] [examples-subdir]")
+  print("")
+  print("Options:")
+  print("  --yes    Run all listed examples without asking")
+  print("  --no     Do not run any examples (show list only)")
+  print("  --help   Show this help and exit")
+  print("")
+  print("Behavior:")
+  print("  - Without a subdirectory argument: only runs .fun files directly in ./examples/")
+  print("  - With an examples-subdir: searches recursively under ./examples/<subdir>/")
+  print("")
+  print("Environment:")
+  print("  FUN_BIN      Path to the fun interpreter (overrides auto-detection)")
+  print("  FUN_LIB_DIR  Path to stdlib (defaults to ./lib)")
+  print("")
+  print("Examples:")
+  print("  scripts/play.fun")
+  print("  scripts/play.fun --yes")
+  print("  scripts/play.fun crypto")
+  print("  scripts/play.fun --no math")
+  exit(0)
+
 // Set FUN_LIB_DIR to ensure stdlib is found
 // We try to use existing environment or default to ./lib
 lib_dir = env("FUN_LIB_DIR")
@@ -93,11 +133,15 @@ fun get_examples(subdir)
     i = i + 1
   return examples
 
-args = parse_args(argv())
+args = parse_args(raw_argv)
 subdir = ""
 if (len(args["positionals"]) > 0)
   subdir = args["positionals"][0]
 
+if (yes_all == 1 && no_all == 1)
+  print("Error: --yes and --no cannot be used together.")
+  exit(2)
+
 examples = get_examples(subdir)
 if (len(examples) == 0)
   if (len(subdir) > 0)
@@ -117,9 +161,22 @@ while (i < n)
   print("Example: " + example)
 
   // ask_yes_no returns 1 for yes, 0 for no
-  print("Do you want to run this example? [y/N]")
+  run_it = 0
-  ans = str_to_lower(str_trim(input("")))
+  if (yes_all == 1)
-  if (ans == "y" || ans == "yes")
+    // Auto-approve running
+    run_it = 1
+  else if (no_all == 1)
+    // Auto-decline
+    run_it = 0
+  else
+    print("Do you want to run this example? [y/N]")
+    ans = str_to_lower(str_trim(input("")))
+    if (ans == "y" || ans == "yes")
+      run_it = 1
+    else
+      run_it = 0
+
+  if (run_it == 1)
     print("Running: " + interpreter + " " + example)
 
     // Prepare command with environment variable