Multiline arrays, better debugging

demo/demo.rpy

@@ -8,6 +8,13 @@ multiple lines"
 'this is a single quote string'
 'this also has escaped \'quotes\''
 this is cool # comment
+any empty array []
+[
+    "this", # test
+    "is",
+    "an",
+    "array"
+]
 ["this","is","an","array"]
 
 huh

src/lib.rs

@@ -24,7 +24,14 @@ fn describe_token(pair: pest::iterators::Pair<Rule>) {
                 _ => unreachable!(),
             }
         },
-        _ => contents.into_inner().as_str().to_owned(),
+        Rule::array => {
+            println!("array: Start array");
+            for token in contents.into_inner() {
+                describe_token(token);
+            }
+            "End array".to_string()
+        }
+        _ => contents.as_str().to_owned(),
     };
     println!("{:?}: {}", contents_rule, str);
 }
@@ -37,33 +44,8 @@ pub fn parse(file_path: &str) {
     for line in file.into_inner() {
         match line.as_rule() {
             Rule::line => {
-                println!("Line:");
                 for token in line.into_inner() {
-                    match token.as_rule() {
+                    describe_token(token);
-                        Rule::token => {
-                            let token = token.into_inner().next().unwrap();
-                            match token.as_rule() {
-                                Rule::string => {
-                                    let string_data = token.into_inner().next().unwrap();
-                                    let str = string_data.as_str();
-                                    println!("string: {}", match string_data.as_rule() {
-                                        Rule::single_quote_string_data => str.replace("\\'", "'"),
-                                        Rule::double_quote_string_data => str.replace("\\\"", "\""),
-                                        _ => unreachable!(),
-                                    });
-                                },
-                                Rule::array => {
-                                    println!("Array:");
-                                    for element in token.into_inner() {
-                                        describe_token(element);
-                                    }
-                                }
-                                Rule::keyword => println!("keyword: {}", token.as_str()),
-                                _ => unreachable!(),
-                            };
-                        },
-                        _ => unreachable!(),
-                    }
                 }
                 println!()
             },

src/rpy.pest

@@ -29,7 +29,10 @@ string = ${
 }
 
 // ARRAY
-array = { "[" ~ token ~ ("," ~ token)* ~ "]"}
+array = {
+    "[" ~ "]"
+    | "[" ~ NEWLINE* ~ token ~ ("," ~ NEWLINE* ~ token)* ~ NEWLINE* ~ "]"
+}
 
 // comments are a # followed by
 // any number of non-newline characters