feat: add async/await keywords, Num/String extensions, and Jinja markdown example

Add `async` and `await` token support to the Wren compiler with scheduler resolution logic, extend `Num` with `e` constant, hyperbolic trig, base conversion, and new methods (`isZero`, `gcd`, `lcm`, `digits`, etc.), extend `String` with `lower`, `upper`, `capitalize`, `title`, and regenerate `wren_core.wren.inc`. Include `Makefile` for multi-platform builds, rewrite `README.md` with updated build instructions, and add `example/await_demo.wren` and `example/jinja_markdown.wren` demonstrating new features.

test/tempfile/custom_dir.wren

@@ -0,0 +1,19 @@
+// retoor <retoor@molodetz.nl>
+
+import "tempfile" for TempFile
+import "io" for Directory, File
+import "pathlib" for Path
+
+var baseDir = TempFile.mkdtemp()
+
+var path = TempFile.mkstemp("", "tmp", baseDir)
+System.print(path.startsWith(baseDir)) // expect: true
+System.print(Path.new(path).exists()) // expect: true
+File.delete(path)
+
+var dir = TempFile.mkdtemp("", "tmp", baseDir)
+System.print(dir.startsWith(baseDir)) // expect: true
+System.print(Path.new(dir).isDir()) // expect: true
+Directory.delete(dir)
+
+Directory.delete(baseDir)

test/tempfile/gettempdir.wren

@@ -0,0 +1,16 @@
+// retoor <retoor@molodetz.nl>
+
+import "tempfile" for TempFile
+
+var dir = TempFile.gettempdir()
+System.print(dir is String) // expect: true
+System.print(dir.count > 0) // expect: true
+
+System.print(TempFile.gettempprefix()) // expect: tmp
+
+System.print(TempFile.tempdir == null) // expect: true
+
+TempFile.tempdir = "/custom/path"
+System.print(TempFile.gettempdir()) // expect: /custom/path
+
+TempFile.tempdir = null

test/tempfile/mkdtemp.wren

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+// retoor <retoor@molodetz.nl>
+
+import "tempfile" for TempFile
+import "io" for Directory
+import "pathlib" for Path
+
+var dir = TempFile.mkdtemp()
+System.print(dir is String) // expect: true
+System.print(Path.new(dir).exists()) // expect: true
+System.print(Path.new(dir).isDir()) // expect: true
+
+Directory.delete(dir)
+System.print(Path.new(dir).exists()) // expect: false
+
+var dir2 = TempFile.mkdtemp("_end", "mydir_")
+System.print(dir2.contains("mydir_")) // expect: true
+System.print(dir2.endsWith("_end")) // expect: true
+Directory.delete(dir2)

test/tempfile/mkstemp.wren

@@ -0,0 +1,21 @@
+// retoor <retoor@molodetz.nl>
+
+import "tempfile" for TempFile
+import "io" for File
+import "pathlib" for Path
+
+var path = TempFile.mkstemp()
+System.print(path is String) // expect: true
+System.print(Path.new(path).exists()) // expect: true
+
+File.delete(path)
+System.print(Path.new(path).exists()) // expect: false
+
+var path2 = TempFile.mkstemp(".txt")
+System.print(path2.endsWith(".txt")) // expect: true
+File.delete(path2)
+
+var path3 = TempFile.mkstemp(".dat", "test_")
+System.print(path3.contains("test_")) // expect: true
+System.print(path3.endsWith(".dat")) // expect: true
+File.delete(path3)

test/tempfile/mktemp.wren

@@ -0,0 +1,13 @@
+// retoor <retoor@molodetz.nl>
+
+import "tempfile" for TempFile
+import "pathlib" for Path
+
+var name = TempFile.mktemp()
+System.print(name is String) // expect: true
+System.print(name.count > 0) // expect: true
+System.print(Path.new(name).exists()) // expect: false
+
+var name2 = TempFile.mktemp(".log", "app_")
+System.print(name2.contains("app_")) // expect: true
+System.print(name2.endsWith(".log")) // expect: true

test/tempfile/named_temporary_file.wren

@@ -0,0 +1,18 @@
+// retoor <retoor@molodetz.nl>
+
+import "tempfile" for NamedTemporaryFile
+import "pathlib" for Path
+
+var tmp = NamedTemporaryFile.new()
+System.print(tmp.name is String) // expect: true
+System.print(Path.new(tmp.name).exists()) // expect: true
+System.print(tmp.closed) // expect: false
+System.print(tmp.delete) // expect: true
+
+tmp.write("hello tempfile")
+var content = tmp.read()
+System.print(content) // expect: hello tempfile
+
+tmp.close()
+System.print(tmp.closed) // expect: true
+System.print(Path.new(tmp.name).exists()) // expect: false

test/tempfile/named_temporary_file_no_delete.wren

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+// retoor <retoor@molodetz.nl>
+
+import "tempfile" for NamedTemporaryFile
+import "io" for File
+import "pathlib" for Path
+
+var tmp = NamedTemporaryFile.new("", "tmp", null, false)
+System.print(tmp.delete) // expect: false
+
+tmp.write("persistent")
+tmp.close()
+System.print(tmp.closed) // expect: true
+System.print(Path.new(tmp.name).exists()) // expect: true
+
+var content = File.read(tmp.name)
+System.print(content) // expect: persistent
+
+File.delete(tmp.name)

test/tempfile/named_temporary_file_use.wren

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+// retoor <retoor@molodetz.nl>
+
+import "tempfile" for NamedTemporaryFile
+import "pathlib" for Path
+
+var savedName = null
+
+NamedTemporaryFile.new().use {|tmp|
+    tmp.write("inside use block")
+    var content = tmp.read()
+    System.print(content) // expect: inside use block
+    savedName = tmp.name
+}
+
+System.print(Path.new(savedName).exists()) // expect: false

test/tempfile/temporary_directory.wren

@@ -0,0 +1,15 @@
+// retoor <retoor@molodetz.nl>
+
+import "tempfile" for TemporaryDirectory
+import "pathlib" for Path
+
+var tmp = TemporaryDirectory.new()
+System.print(tmp.name is String) // expect: true
+System.print(Path.new(tmp.name).exists()) // expect: true
+System.print(Path.new(tmp.name).isDir()) // expect: true
+System.print(tmp.closed) // expect: false
+System.print(tmp.delete) // expect: true
+
+tmp.cleanup()
+System.print(tmp.closed) // expect: true
+System.print(Path.new(tmp.name).exists()) // expect: false

test/tempfile/temporary_directory_use.wren

@@ -0,0 +1,20 @@
+// retoor <retoor@molodetz.nl>
+
+import "tempfile" for TemporaryDirectory
+import "io" for File, FileFlags
+import "pathlib" for Path
+
+var savedName = null
+
+TemporaryDirectory.new().use {|tmp|
+    savedName = tmp.name
+    System.print(Path.new(savedName).isDir()) // expect: true
+
+    var filePath = savedName + "/test.txt"
+    File.create(filePath) {|f|
+        f.writeBytes("hello", 0)
+    }
+    System.print(Path.new(filePath).exists()) // expect: true
+}
+
+System.print(Path.new(savedName).exists()) // expect: false