Mihaela Mihaljevic
3436160306
Add internal parsing events with marks, scalar styles, collection styles, alias events, and anchor/tag metadata. Add golden parser event tests for current block parser behavior. Closes #2
67 lines
2.4 KiB
Swift
67 lines
2.4 KiB
Swift
extension PureYAML.Parsing {
|
|
enum Event: Equatable, CustomStringConvertible {
|
|
case streamStart(mark: Mark)
|
|
case streamEnd(mark: Mark)
|
|
case documentStart(mark: Mark)
|
|
case documentEnd(mark: Mark)
|
|
case sequenceStart(anchor: String?, tag: String?, style: CollectionStyle, mark: Mark)
|
|
case sequenceEnd(mark: Mark)
|
|
case mappingStart(anchor: String?, tag: String?, style: CollectionStyle, mark: Mark)
|
|
case mappingEnd(mark: Mark)
|
|
case scalar(value: String, anchor: String?, tag: String?, style: ScalarStyle, mark: Mark)
|
|
case alias(anchor: String, mark: Mark)
|
|
|
|
var description: String {
|
|
switch self {
|
|
case let .streamStart(mark):
|
|
"streamStart @\(mark)"
|
|
case let .streamEnd(mark):
|
|
"streamEnd @\(mark)"
|
|
case let .documentStart(mark):
|
|
"documentStart @\(mark)"
|
|
case let .documentEnd(mark):
|
|
"documentEnd @\(mark)"
|
|
case let .sequenceStart(anchor, tag, style, mark):
|
|
"sequenceStart anchor=\(describe(anchor)) tag=\(describe(tag)) style=\(style) @\(mark)"
|
|
case let .sequenceEnd(mark):
|
|
"sequenceEnd @\(mark)"
|
|
case let .mappingStart(anchor, tag, style, mark):
|
|
"mappingStart anchor=\(describe(anchor)) tag=\(describe(tag)) style=\(style) @\(mark)"
|
|
case let .mappingEnd(mark):
|
|
"mappingEnd @\(mark)"
|
|
case let .scalar(value, anchor, tag, style, mark):
|
|
"scalar value=\"\(escape(value))\" anchor=\(describe(anchor)) tag=\(describe(tag)) style=\(style) @\(mark)"
|
|
case let .alias(anchor, mark):
|
|
"alias anchor=\(anchor) @\(mark)"
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
extension PureYAML.Parsing.Event {
|
|
private func describe(_ value: String?) -> String {
|
|
value ?? "-"
|
|
}
|
|
|
|
private func escape(_ value: String) -> String {
|
|
var output = ""
|
|
for character in value {
|
|
switch character {
|
|
case "\\":
|
|
output += "\\\\"
|
|
case "\"":
|
|
output += "\\\""
|
|
case "\n":
|
|
output += "\\n"
|
|
case "\r":
|
|
output += "\\r"
|
|
case "\t":
|
|
output += "\\t"
|
|
default:
|
|
output.append(character)
|
|
}
|
|
}
|
|
return output
|
|
}
|
|
}
|