1 files changed, 71 insertions, 0 deletions
diff --git a/isabelle-dump/src/main.rs b/isabelle-dump/src/main.rs
new file mode 100644
index 0000000..891108f
--- /dev/null
+++ b/isabelle-dump/src/main.rs
@@ -0,0 +1,71 @@
+use std::io::{self, BufRead, Write};
+
+use lrlex::lrlex_mod;
+use lrpar::lrpar_mod;
+
+#[derive(Debug)]
+pub enum Isabelle {
+    Symbol(String),
+    Text(String),
+}
+
+
+lrlex_mod!("calc.l");
+lrpar_mod!("calc.y");
+
+
+symbolmacro::make_symbols!();
+
+
+fn main() {
+    // Get the `LexerDef` for the `calc` language.
+    let lexerdef = calc_l::lexerdef();
+    let stdin = io::stdin();
+    loop {
+        io::stdout().flush().ok();
+        match stdin.lock().lines().next() {
+            Some(Ok(ref l)) => {
+                if l.trim().is_empty() {
+                    println!("");
+                    continue;
+                }
+                let lexer = lexerdef.lexer(l);
+                let (res, errs) = calc_y::parse(&lexer);
+                for e in errs {
+                    eprintln!(
+                        "{}",
+                        e.pp(&lexer, &calc_y::token_epp)
+                    );
+                }
+                match res {
+                    Some(r) => {
+                        //eprintln!("Result: {:?}", r);
+                        let rendered = r
+                            .unwrap()
+                            .iter()
+                            .map(|token| match token {
+                                Isabelle::Text(ref t) =>
+                                    t,
+                                Isabelle::Symbol(name) =>
+                                    symbol(name)
+                                    .unwrap_or_else(|| {
+                                        Box::leak(
+                                            format!("\\<{}>", name)
+                                                .into()
+                                        )
+                                    })
+                            })
+                            .collect::<Vec<&str>>()
+                            .join("");
+                        println!("{}", rendered);
+                    }
+                    _ => {
+                        eprintln!("could not parse file (probably spurious \\, <, or >)");
+                        std::process::exit(1);
+                    }
+                }
+            }
+            _ => break,
+        }
+    }
+}