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scanTag is now nothrow.

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This commit is contained in:
Ferdinand Majerech 2014-07-25 18:28:08 +02:00
parent 4e3619cf6a
commit 537eccc597
1 changed files with 22 additions and 13 deletions
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35
source/dyaml/scanner.d
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@ -697,6 +697,7 @@ final class Scanner
allowSimpleKey_ = false;
tokens_.push(scanTag());
throwIfError();
}
///Add block SCALAR token.
@ -1067,7 +1068,9 @@ final class Scanner
}
/// Scan a tag token.
Token scanTag() @trusted pure
///
/// In case of an error, error_ is set. Use throwIfError() to handle this.
Token scanTag() @trusted pure nothrow
{
const startMark = reader_.mark;
dchar c = reader_.peek(1);
@ -1084,11 +1087,14 @@ final class Scanner
handleEnd = 0;
scanTagURIToSlice!"tag"(startMark);
throwIfError();
enforce(reader_.peek() == '>',
new Error("While scanning a tag", startMark,
"expected '>' but found" ~ reader_.peek().to!string,
reader_.mark));
if(error_) { return Token.init; }
if(reader_.peek() != '>')
{
setError("While scanning a tag", startMark,
buildMsg("expected '>' but found ", reader_.peek()),
reader_.mark);
return Token.init;
}
reader_.forward();
}
else if(" \t\0\n\r\u0085\u2028\u2029"d.canFind(c))
@ -1117,7 +1123,7 @@ final class Scanner
{
scanTagHandleToSlice!"tag"(startMark);
handleEnd = cast(uint)reader_.sliceBuilder.length;
throwIfError();
if(error_) { return Token.init; }
}
else
{
@ -1127,14 +1133,17 @@ final class Scanner
}
scanTagURIToSlice!"tag"(startMark);
throwIfError();
if(error_) { return Token.init; }
}
enforce(" \0\n\r\u0085\u2028\u2029"d.canFind(reader_.peek()),
new Error("While scanning a tag", startMark,
"expected ' ' but found" ~ reader_.peek().to!string,
reader_.mark));
const dstring slice = reader_.sliceBuilder.finish();
if(!" \0\n\r\u0085\u2028\u2029"d.canFind(reader_.peek()))
{
setError("While scanning a tag", startMark,
buildMsg("expected ' ' but found ", reader_.peek()),
reader_.mark);
return Token.init;
}
const slice = reader_.sliceBuilder.finish();
return tagToken(startMark, reader_.mark, slice.utf32To8, handleEnd);
}