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scanTagHandle now scans to a slice.

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This commit is contained in:
Ferdinand Majerech 2014-07-25 02:32:29 +02:00
parent 9fe84bf729
commit 457cabbb72
1 changed files with 23 additions and 8 deletions
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29
source/dyaml/scanner.d
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@ -967,7 +967,7 @@ final class Scanner
} }
/// Scan value of a tag directive. /// Scan value of a tag directive.
dchar[] scanTagDirectiveValue(const Mark startMark) @safe pure dstring scanTagDirectiveValue(const Mark startMark) @safe pure
{ {
findNextNonSpace(); findNextNonSpace();
const handle = scanTagDirectiveHandle(startMark); const handle = scanTagDirectiveHandle(startMark);
@ -976,9 +976,14 @@ final class Scanner
} }
///Scan handle of a tag directive. ///Scan handle of a tag directive.
dchar[] scanTagDirectiveHandle(const Mark startMark) @safe pure dstring scanTagDirectiveHandle(const Mark startMark) @trusted pure
{ {
auto value = scanTagHandle("directive", startMark); reader_.sliceBuilder.begin();
{
scope(failure) { reader_.sliceBuilder.finish(); }
scanTagHandleToSlice("directive", startMark);
}
auto value = reader_.sliceBuilder.finish();
enforce(reader_.peek() == ' ', enforce(reader_.peek() == ' ',
new Error("While scanning a directive handle", startMark, new Error("While scanning a directive handle", startMark,
"expected ' ', but found: " ~ to!string(reader_.peek()), "expected ' ', but found: " ~ to!string(reader_.peek()),
@ -1088,7 +1093,13 @@ final class Scanner
c = reader_.peek(length); c = reader_.peek(length);
} }
if(useHandle) { handle = scanTagHandle("tag", startMark); } if(useHandle)
{
reader_.sliceBuilder.begin();
scope(failure) { reader_.sliceBuilder.finish(); }
scanTagHandleToSlice("tag", startMark);
handle = reader_.sliceBuilder.finish();
}
else else
{ {
handle = "!"d.dup; handle = "!"d.dup;
@ -1655,7 +1666,10 @@ final class Scanner
} }
/// Scan handle of a tag token. /// Scan handle of a tag token.
dchar[] scanTagHandle(const string name, const Mark startMark) @safe pure ///
/// Assumes that the caller is building a slice in Reader, and puts the scanned
/// characters into that slice.
void scanTagHandleToSlice(const string name, const Mark startMark) @system pure
{ {
dchar c = reader_.peek(); dchar c = reader_.peek();
enforce(c == '!', enforce(c == '!',
@ -1666,7 +1680,7 @@ final class Scanner
c = reader_.peek(length); c = reader_.peek(length);
if(c != ' ') if(c != ' ')
{ {
while(isAlphaNum(c) || "-_"d.canFind(c)) while(c.isAlphaNum || "-_"d.canFind(c))
{ {
++length; ++length;
c = reader_.peek(length); c = reader_.peek(length);
@ -1680,7 +1694,8 @@ final class Scanner
} }
++length; ++length;
} }
return reader_.get(length);
reader_.sliceBuilder.write(reader_.get(length));
} }
/// Scan URI in a tag token. /// Scan URI in a tag token.