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chatstates: Improve parsing.

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This commit is contained in:
Emmanuel Gil Peyrot 2017-06-25 19:55:55 +01:00
parent eca588ad6f
commit 13e8507848
1 changed files with 11 additions and 13 deletions
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24
src/chatstates.rs
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@ -25,25 +25,23 @@ impl TryFrom<Element> for ChatState {
type Error = Error;
fn try_from(elem: Element) -> Result<ChatState, Error> {
if elem.ns() != Some(ns::CHATSTATES) {
return Err(Error::ParseError("This is not a chatstate element."));
}
for _ in elem.children() {
return Err(Error::ParseError("Unknown child in chatstate element."));
}
for _ in elem.attrs() {
return Err(Error::ParseError("Unknown attribute in chatstate element."));
}
if elem.is("active", ns::CHATSTATES) {
Ok(ChatState::Active)
} else if elem.is("composing", ns::CHATSTATES) {
Ok(ChatState::Composing)
} else if elem.is("gone", ns::CHATSTATES) {
Ok(ChatState::Gone)
} else if elem.is("inactive", ns::CHATSTATES) {
Ok(ChatState::Inactive)
} else if elem.is("paused", ns::CHATSTATES) {
Ok(ChatState::Paused)
} else {
Err(Error::ParseError("This is not a chatstate element."))
}
Ok(match elem.name() {
"active" => ChatState::Active,
"composing" => ChatState::Composing,
"gone" => ChatState::Gone,
"inactive" => ChatState::Inactive,
"paused" => ChatState::Paused,
_ => return Err(Error::ParseError("This is not a chatstate element.")),
})
}
}