1 files changed, 177 insertions, 42 deletions
diff --git a/src/main.rs b/src/main.rs
index 09a15ef..6196a32 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,47 +1,182 @@
-use trawk::{Context, Program};
+/// TBSP: tree-based source processor
+#[derive(argh::FromArgs)]
+struct Cli {
+    /// read the TBSP program source from a file
+    #[argh(option, short = 'f')]
+    program_file: std::path::PathBuf,
+    /// set the language that the file is written in
+    #[argh(option, short = 'l')]
+    language: String,
+    /// input file to process
+    #[argh(positional)]
+    file: Option<std::path::PathBuf>,
+}
 fn main() {
-    let src = r#"
+    let cli: Cli = argh::from_env();
-bar = 0
-def foo():
+    let program = std::fs::read_to_string(&cli.program_file).unwrap_or_else(|e| {
-    baz = 5
+        eprintln!(
-        "#
+            "failed to read program-file from `{}`: {e}",
-    .to_owned();
+            cli.program_file.display()
+        );
-    let program = Program::new()
+        std::process::exit(-1);
-        .from_str(
+    });
-            r#"
-    BEGIN {
+    let language = match cli.language.as_str() {
-        bool in_def = false;
+        "md" => tree_sitter_md::language(),
-    }
+        "typescript" => tree_sitter_typescript::language_typescript(),
-    pre function_definition {
+        "javascript" => tree_sitter_javascript::language(),
-        in_def = true;
+        "python" => tree_sitter_python::language(),
+        "rust" => tree_sitter_rust::language(),
+        lang => {
+            eprintln!("unknown language `{lang}`");
+            std::process::exit(-1);
+        }
+    };
+    let file = cli
+        .file
+        .map(std::fs::read_to_string)
+        .unwrap_or_else(try_consume_stdin)
+        .unwrap_or_else(|e| {
+            eprintln!("{e}");
+            std::process::exit(-1)
+        });
+    trawk::evaluate(&file, &program, language).unwrap_or_else(|e| {
+        eprintln!("{e:?}");
+        std::process::exit(-1);
+    });
+}
+fn try_consume_stdin() -> std::io::Result<String> {
+    let mut buffer = String::new();
+    let mut lock = std::io::stdin().lock();
+    while let Ok(n) = std::io::Read::read_to_string(&mut lock, &mut buffer) {
+        if n == 0 {
+            break;
+        }
    }
-    post function_definition {
-        in_def = false;
+    if buffer.is_empty() {
+        Err(std::io::Error::other("empty stdin"))
+    } else {
+        Ok(buffer)
    }
-    pre identifier {
-        if (in_def) {
-            print(text(node));
-            print(" ");
-            print("in def\n");
-        } else {
-        };
-    }"#,
-        )
-        .unwrap();
-    let mut parser = tree_sitter::Parser::new();
-    let _ = parser.set_language(tree_sitter_python::language());
-    let tree = parser.parse(&src, None).unwrap();
-    let cursor = tree.walk();
-    let mut ctx = Context::new(tree_sitter_python::language())
-        .with_input(src)
-        .with_cursor(cursor)
-        .with_program(program)
-        .unwrap();
-    let _ = ctx.eval();
 }
+// fn main() {
+//     let src = r#"
+// # foo1
+//
+// bar
+//
+// ## foo1.1
+//
+// bar baz
+//
+// # foo2
+//
+// bar baz
+//
+// ```
+// fn main() {
+// }
+// ```
+//
+// - foo
+// - bar
+// - baz
+//
+//         "#
+//     .to_owned();
+//
+//     let program = Program::new()
+//         .from_str(
+//             r#"
+//     BEGIN {
+//         int depth = 0;
+//
+//         print("<html>\n");
+//         print("<body>\n");
+//     }
+//
+//     enter section {
+//         depth += 1;
+//     }
+//     leave section {
+//         depth -= 1;
+//     }
+//
+//     enter atx_heading {
+//         print("<h");
+//         print(depth);
+//         print(">");
+//     }
+//     leave atx_heading {
+//         print("</h");
+//         print(depth);
+//         print(">\n");
+//     }
+//
+//     enter paragraph {
+//         print("<p>");
+//     }
+//     leave paragraph {
+//         print("</p>\n");
+//     }
+//
+//     enter list {
+//         print("<ol>");
+//     }
+//     leave list {
+//         print("</ol>\n");
+//     }
+//
+//     enter list_item {
+//         print("<li>");
+//     }
+//     leave list_item {
+//         print("</li>\n");
+//     }
+//
+//     enter fenced_code_block {
+//         print("<pre>");
+//     }
+//     leave fenced_code_block {
+//         print("</pre>\n");
+//     }
+//
+//     enter inline {
+//         print(text(node));
+//     }
+//     enter code_fence_content {
+//         print(text(node));
+//     }
+//
+//     END {
+//         print("</body>\n");
+//         print("</html>\n");
+//     }
+//     "#,
+//         )
+//         .unwrap();
+//
+//     let mut parser = tree_sitter::Parser::new();
+//     let _ = parser.set_language(&tree_sitter_md::language());
+//
+//     let tree = parser.parse(&src, None).unwrap();
+//     let cursor = tree.walk();
+//
+//     let mut ctx = Context::new(tree_sitter_md::language())
+//         .with_input(src)
+//         .with_cursor(cursor)
+//         .with_program(program)
+//         .unwrap();
+//
+//     let _ = ctx.eval();
+// }

diff --git a/src/main.rs b/src/main.rs index 09a15ef..6196a32 100644 --- a/src/main.rs +++ b/src/main.rs
@@ -1,47 +1,182 @@
1	use trawk::{Context, Program};	1	/// TBSP: tree-based source processor
		2	#[derive(argh::FromArgs)]
		3	struct Cli {
		4	/// read the TBSP program source from a file
		5	#[argh(option, short = 'f')]
		6	program_file: std::path::PathBuf,
		7
		8	/// set the language that the file is written in
		9	#[argh(option, short = 'l')]
		10	language: String,
		11
		12	/// input file to process
		13	#[argh(positional)]
		14	file: Option<std::path::PathBuf>,
		15	}
2		16
3	fn main() {	17	fn main() {
4	let src = r#"	18	let cli: Cli = argh::from_env();
5	bar = 0	19
6	def foo():	20	let program = std::fs::read_to_string(&cli.program_file).unwrap_or_else(\|e\| {
7	baz = 5	21	eprintln!(
8	"#	22	"failed to read program-file from `{}`: {e}",
9	.to_owned();	23	cli.program_file.display()
10		24	);
11	let program = Program::new()	25	std::process::exit(-1);
12	.from_str(	26	});
13	r#"	27
14	BEGIN {	28	let language = match cli.language.as_str() {
15	bool in_def = false;	29	"md" => tree_sitter_md::language(),
16	}	30	"typescript" => tree_sitter_typescript::language_typescript(),
17	pre function_definition {	31	"javascript" => tree_sitter_javascript::language(),
18	in_def = true;	32	"python" => tree_sitter_python::language(),
		33	"rust" => tree_sitter_rust::language(),
		34	lang => {
		35	eprintln!("unknown language `{lang}`");
		36	std::process::exit(-1);
		37	}
		38	};
		39
		40	let file = cli
		41	.file
		42	.map(std::fs::read_to_string)
		43	.unwrap_or_else(try_consume_stdin)
		44	.unwrap_or_else(\|e\| {
		45	eprintln!("{e}");
		46	std::process::exit(-1)
		47	});
		48
		49	trawk::evaluate(&file, &program, language).unwrap_or_else(\|e\| {
		50	eprintln!("{e:?}");
		51	std::process::exit(-1);
		52	});
		53	}
		54
		55	fn try_consume_stdin() -> std::io::Result<String> {
		56	let mut buffer = String::new();
		57	let mut lock = std::io::stdin().lock();
		58
		59	while let Ok(n) = std::io::Read::read_to_string(&mut lock, &mut buffer) {
		60	if n == 0 {
		61	break;
		62	}
19	}	63	}
20	post function_definition {	64
21	in_def = false;	65	if buffer.is_empty() {
		66	Err(std::io::Error::other("empty stdin"))
		67	} else {
		68	Ok(buffer)
22	}	69	}
23	pre identifier {
24	if (in_def) {
25	print(text(node));
26	print(" ");
27	print("in def\n");
28	} else {
29	};
30	}"#,
31	)
32	.unwrap();
33
34	let mut parser = tree_sitter::Parser::new();
35	let _ = parser.set_language(tree_sitter_python::language());
36
37	let tree = parser.parse(&src, None).unwrap();
38	let cursor = tree.walk();
39
40	let mut ctx = Context::new(tree_sitter_python::language())
41	.with_input(src)
42	.with_cursor(cursor)
43	.with_program(program)
44	.unwrap();
45
46	let _ = ctx.eval();
47	}	70	}
		71
		72	// fn main() {
		73	// let src = r#"
		74	// # foo1
		75	//
		76	// bar
		77	//
		78	// ## foo1.1
		79	//
		80	// bar baz
		81	//
		82	// # foo2
		83	//
		84	// bar baz
		85	//
		86	// ```
		87	// fn main() {
		88	// }
		89	// ```
		90	//
		91	// - foo
		92	// - bar
		93	// - baz
		94	//
		95	// "#
		96	// .to_owned();
		97	//
		98	// let program = Program::new()
		99	// .from_str(
		100	// r#"
		101	// BEGIN {
		102	// int depth = 0;
		103	//
		104	// print("<html>\n");
		105	// print("<body>\n");
		106	// }
		107	//
		108	// enter section {
		109	// depth += 1;
		110	// }
		111	// leave section {
		112	// depth -= 1;
		113	// }
		114	//
		115	// enter atx_heading {
		116	// print("<h");
		117	// print(depth);
		118	// print(">");
		119	// }
		120	// leave atx_heading {
		121	// print("</h");
		122	// print(depth);
		123	// print(">\n");
		124	// }
		125	//
		126	// enter paragraph {
		127	// print("<p>");
		128	// }
		129	// leave paragraph {
		130	// print("</p>\n");
		131	// }
		132	//
		133	// enter list {
		134	// print("<ol>");
		135	// }
		136	// leave list {
		137	// print("</ol>\n");
		138	// }
		139	//
		140	// enter list_item {
		141	// print("<li>");
		142	// }
		143	// leave list_item {
		144	// print("</li>\n");
		145	// }
		146	//
		147	// enter fenced_code_block {
		148	// print("<pre>");
		149	// }
		150	// leave fenced_code_block {
		151	// print("</pre>\n");
		152	// }
		153	//
		154	// enter inline {
		155	// print(text(node));
		156	// }
		157	// enter code_fence_content {
		158	// print(text(node));
		159	// }
		160	//
		161	// END {
		162	// print("</body>\n");
		163	// print("</html>\n");
		164	// }
		165	// "#,
		166	// )
		167	// .unwrap();
		168	//
		169	// let mut parser = tree_sitter::Parser::new();
		170	// let _ = parser.set_language(&tree_sitter_md::language());
		171	//
		172	// let tree = parser.parse(&src, None).unwrap();
		173	// let cursor = tree.walk();
		174	//
		175	// let mut ctx = Context::new(tree_sitter_md::language())
		176	// .with_input(src)
		177	// .with_cursor(cursor)
		178	// .with_program(program)
		179	// .unwrap();
		180	//
		181	// let _ = ctx.eval();
		182	// }