manually/naively strip comments from raw .mo files

1 files changed, 12 insertions, 4 deletions

diff --git a/modelica-parser-lalrpop/examples/parse_file.rs b/modelica-parser-lalrpop/examples/parse_file.rs
index b3d6913..53da285 100644
--- a/modelica-parser-lalrpop/examples/parse_file.rs
+++ b/modelica-parser-lalrpop/examples/parse_file.rs
@@ -1,15 +1,20 @@
 
 extern crate modelica_parser;
+extern crate regex;
 
 use std::env;
 use std::io::Read;
 use std::fs::File;
 use std::process::exit;
+use regex::Regex;
 
 
 fn main() {
 
     let args: Vec<String> = env::args().collect();
+    // Match on comments:
+    //      (?m) sets multi-line mode
+    let comment_re = Regex::new(r"(?m)(//.*)$").unwrap();
 
     if args.len() <= 1 {
         println!("I'm a modelica parser! Pass me one or more files to parse...");
@@ -17,18 +22,21 @@ fn main() {
     }
 
     for input in &args[1..] {
-        let mut s = String::new();
-        if let Err(err) = File::open(input).and_then(|mut f| f.read_to_string(&mut s)) {
+        let mut raw = String::new();
+        if let Err(err) = File::open(input).and_then(|mut f| f.read_to_string(&mut raw)) {
             println!("=== {}: I/O Error {}",
                      input, err);
             continue;
         }
 
-        let result = modelica_parser::parser::parse_file(&s);
+        // Strip comments manually
+        let striped = comment_re.replace_all(&raw, "");
+
+        let result = modelica_parser::parser::parse_file(&striped);
 
         match result {
             Ok(_) => println!("=== {}: OK", input),
-            Err(err) => println!("=== {}: ERROR\n{}", input, modelica_parser::pp_parseerror(&s, err)),
+            Err(err) => println!("=== {}: ERROR\n{}", input, modelica_parser::pp_parseerror(&striped, err)),
         }
     }
 }