fn parse_evaluation_line<T>(line: T) -> LogDatum
where
    T: AsRef<OsStr>,
{
    lazy_static! {
        static ref EVAL_FILE: Regex =
            Regex::new("^evaluating file '(?P<source>.*)'$").expect("invalid regex!");
        static ref COPIED_SOURCE: Regex =
            Regex::new("^copied source '(?P<source>.*)' -> '(?:.*)'$").expect("invalid regex!");
        static ref LORRI_READ: Regex =
            Regex::new("^trace: lorri read: '(?P<source>.*)'$").expect("invalid regex!");
    }

    match line.as_ref().to_str() {
        // If we can’t decode the output line to an UTF-8 string,
        // we cannot match against regexes, so just pass it through.
        None => LogDatum::Text(line.as_ref().to_owned()),
        Some(linestr) => {
            // Lines about evaluating a file are much more common, so looking
            // for them first will reduce comparisons.
            if let Some(matches) = EVAL_FILE.captures(&linestr) {
                LogDatum::Source(PathBuf::from(&matches["source"]))
            } else if let Some(matches) = COPIED_SOURCE.captures(&linestr) {
                LogDatum::Source(PathBuf::from(&matches["source"]))
            } else if let Some(matches) = LORRI_READ.captures(&linestr) {
                LogDatum::Source(PathBuf::from(&matches["source"]))
            } else {
                LogDatum::Text(line.as_ref().to_owned())
            }
        }
    }
}
/// Examine a line of output and extract interesting log items in to
/// structured data.
Examine a line of output and extract interesting log items in to
structured data.
Examine a line of output and extract interesting log items in to structured data .
fn parse_evaluation_line<T>(line: T) -> LogDatum
where
    T: AsRef<OsStr>,
{
    lazy_static! {
        static ref EVAL_FILE: Regex =
            Regex::new("^evaluating file '(?P<source>.*)'$").expect("invalid regex!");
        static ref COPIED_SOURCE: Regex =
            Regex::new("^copied source '(?P<source>.*)' -> '(?:.*)'$").expect("invalid regex!");
        static ref LORRI_READ: Regex =
            Regex::new("^trace: lorri read: '(?P<source>.*)'$").expect("invalid regex!");
    }
    match line.as_ref().to_str() {
        // If we can’t decode the output line to an UTF-8 string,
        // we cannot match against regexes, so just pass it through.
        None => LogDatum::Text(line.as_ref().to_owned()),
        Some(linestr) => {
            // Lines about evaluating a file are much more common, so looking
            // for them first will reduce comparisons.
            if let Some(matches) = EVAL_FILE.captures(&linestr) {
                LogDatum::Source(PathBuf::from(&matches["source"]))
            } else if let Some(matches) = COPIED_SOURCE.captures(&linestr) {
                LogDatum::Source(PathBuf::from(&matches["source"]))
            } else if let Some(matches) = LORRI_READ.captures(&linestr) {
                LogDatum::Source(PathBuf::from(&matches["source"]))
            } else {
                LogDatum::Text(line.as_ref().to_owned())
            }
        }
    }
}
fn parse_evaluation_line < T > ( line : T ) -> LogDatum where T : AsRef < OsStr > , { lazy_static ! { static ref EVAL_FILE Regex Regex new ( " " ) expect ( " " ) static ref COPIED_SOURCE Regex Regex new ( " " ) expect ( " " ) static ref LORRI_READ Regex Regex new ( " " ) expect ( " " ) } match line . as_ref ( ) . to_str ( ) { // If we can’t decode the output line to an UTF-8 string, // we cannot match against regexes, so just pass it through. None => LogDatum :: Text ( line . as_ref ( ) . to_owned ( ) ) , Some ( linestr ) => { // Lines about evaluating a file are much more common, so looking // for them first will reduce comparisons. if let Some ( matches ) = EVAL_FILE . captures ( & linestr ) { LogDatum :: Source ( PathBuf :: from ( & matches [ " " ] ) ) } else if let Some ( matches ) = COPIED_SOURCE . captures ( & linestr ) { LogDatum :: Source ( PathBuf :: from ( & matches [ " " ] ) ) } else if let Some ( matches ) = LORRI_READ . captures ( & linestr ) { LogDatum :: Source ( PathBuf :: from ( & matches [ " " ] ) ) } else { LogDatum :: Text ( line . as_ref ( ) . to_owned ( ) ) } } } }
Examine a line of output and extract interesting log items in to
structured data.
Examine a line of output and extract interesting log items in to structured data .
line
T