fix: if the file unexpectedly ends before a newline, it no longer cra…

…shes

src/scripts/parser/src/lexer.rs

@@ -2,7 +2,10 @@
 // https://github.com/rust-bakery/nom/tree/main/doc
 
 pub mod lexer {
+    use nom::branch::alt;
+    use nom::bytes::complete::{is_not, take_till};
     use nom::character::complete::char as nom_char;
+    use nom::combinator::eof;
     use nom::{
         bytes::complete::{tag, take_until},
         multi::many0,
@@ -37,7 +40,7 @@ pub mod lexer {
     ///
     /// * `input` - A string slice from a csv generated by HWInfo.
     fn read_record(input: &str) -> IResult<&str, Vec<&str>> {
-        let record: (&str, &str) = terminated(take_until("\n"), tag("\n"))(input)?;
+        let record: (&str, &str) = terminated(alt((take_until("\n"), is_not(""))), alt((tag("\n"), take_until(""))))(input)?;
         // apply the parser a bunch of times, until the input string is empty
         let record_parsing_output = many0(read_field)(record.1)?;
         // I want this function to integrate smoothly and behave like an idiomatic nom function
@@ -90,12 +93,16 @@ pub mod lexer {
             assert_eq!(read_field("ab,cd,"), Ok(("cd,", "ab")));
         }
 
-        // read_record
         #[test]
         fn basic_read_record_until_newline() {
             assert_eq!(read_record("ab,cd,\n"), Ok(("", vec!["ab", "cd"])));
         }
 
+        #[test]
+        fn read_record_until_eof() {
+            assert_eq!(read_record("ab,cd,"), Ok(("", vec!["ab", "cd"])));
+        }
+
         #[test]
         fn read_record_includes_leftovers() {
             assert_eq!(

src/scripts/parser/src/lib.rs

@@ -108,7 +108,8 @@ mod tests {
 
     #[test]
     fn parse_csv_from_file() {
-        let mut file_handle = File::open("C:\\Users\\James Boehme\\Downloads\\stress.CSV").unwrap();
+        // TODO
+        let mut file_handle = File::open("/Users/arc/Downloads/log11.csv").unwrap();
         let mut file_vec = Vec::new();
         file_handle.read_to_end(&mut file_vec).unwrap();
         parse_csv(&file_vec);