/// From an OpenStreetMap way's tags,
/// determine the lanes along the road from left to right.
///
/// # Errors
///
/// Warnings or errors are produced for situations that may make the lanes inaccurate, such as:
///
/// - Unimplemented or unsupported tags
/// - Ambiguous tags
/// - Unknown internal errors
///
/// If the issue may be recoverable, a warning is preferred.
/// A config option allows all warnings to be treated as errors.
///
From an OpenStreetMap way's tags,
determine the lanes along the road from left to right.
From an OpenStreetMap way ' s tags determine the lanes along the road from left to right .
pub fn tags_to_lanes(
    tags: &Tags,
    locale: &Locale,
    config: &Config,
) -> Result<RoadFromTags, RoadError> {
    let mut warnings = RoadWarnings::default();
    // Early return if we find unimplemented or unsupported tags.
    unsupported(tags, locale, &mut warnings)?;
    // Parse each scheme independently ahead of time, to simplify the process and ensure local consistency
    let schemes = TagSchemes::from_tags(tags, locale, &mut warnings)?;
    // Create the road builder and start giving it schemes.
    let mut road: RoadBuilder = RoadBuilder::from(&schemes, tags, locale, &mut warnings)?;
    modes::non_motorized(tags, locale, &mut road, &mut warnings)?;
    modes::bus(&schemes.busway, tags, locale, &mut road, &mut warnings)?;
    modes::bicycle(tags, locale, &mut road, &mut warnings)?;
    modes::parking(tags, locale, &mut road)?;
    modes::foot_and_shoulder(tags, locale, &mut road, &mut warnings)?;
    let (lanes, highway, _oneway) =
        road.into_ltr(tags, locale, config.include_separators, &mut warnings)?;
    let road_from_tags = RoadFromTags {
        road: Road { lanes, highway },
        warnings,
    };
    if config.error_on_warnings && !road_from_tags.warnings.is_empty() {
        return Err(road_from_tags.warnings.into());
    }
    Ok(road_from_tags)
}
pub fn tags_to_lanes ( tags : & Tags , locale : & Locale , config : & Config , ) -> Result < RoadFromTags , RoadError > { let mut warnings = RoadWarnings :: default ( ) ; // Early return if we find unimplemented or unsupported tags. unsupported ( tags , locale , & mut warnings ) ? ; // Parse each scheme independently ahead of time, to simplify the process and ensure local consistency let schemes = TagSchemes :: from_tags ( tags , locale , & mut warnings ) ? ; // Create the road builder and start giving it schemes. let mut road : RoadBuilder = RoadBuilder :: from ( & schemes , tags , locale , & mut warnings ) ? ; modes :: non_motorized ( tags , locale , & mut road , & mut warnings ) ? ; modes :: bus ( & schemes . busway , tags , locale , & mut road , & mut warnings ) ? ; modes :: bicycle ( tags , locale , & mut road , & mut warnings ) ? ; modes :: parking ( tags , locale , & mut road ) ? ; modes :: foot_and_shoulder ( tags , locale , & mut road , & mut warnings ) ? ; let ( lanes , highway , _oneway ) = road . into_ltr ( tags , locale , config . include_separators , & mut warnings ) ? ; let road_from_tags = RoadFromTags { road : Road { lanes , highway } , warnings , } ; if config . error_on_warnings && ! road_from_tags . warnings . is_empty ( ) { return Err ( road_from_tags . warnings . into ( ) ) ; } Ok ( road_from_tags ) }
From an OpenStreetMap way's tags,
determine the lanes along the road from left to right.
From an OpenStreetMap way ' s tags determine the lanes along the road from left to right .
tags
&Tags
locale
&Locale
config
&Config
errors
Warnings or errors are produced for situations that may make the lanes inaccurate, such as.

Unimplemented or unsupported tags
Ambiguous tags
Unknown internal errors

If the issue may be recoverable, a warning is preferred.
A config option allows all warnings to be treated as errors.
Warnings or errors are produced for situations that may make the lanes inaccurate such as . Unimplemented or unsupported tags Ambiguous tags Unknown internal errors If the issue may be recoverable a warning is preferred . A config option allows all warnings to be treated as errors .