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Added a Reader ctor from buffer and deprecated the ctor from Stream.

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This commit is contained in:
Ferdinand Majerech 2014-07-31 01:56:06 +02:00
parent 4d6634f49b
commit 03d1183550
1 changed files with 41 additions and 3 deletions
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42
source/dyaml/reader.d
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@ -27,7 +27,6 @@ import dyaml.fastcharsearch;
import dyaml.encoding;
import dyaml.exception;
import dyaml.nogcutil;
import dyaml.streamcompat;
@ -90,6 +89,7 @@ final class Reader
public:
import dyaml.streamcompat;
import std.stream;
/// Construct a Reader.
///
@ -97,7 +97,7 @@ final class Reader
///
/// Throws: ReaderException if the stream is invalid, on a UTF decoding error
/// or if there are nonprintable unicode characters illegal in YAML.
this(Stream stream) @trusted //!nothrow
deprecated("use Reader(ubyte[])") this(Stream stream) @trusted //!nothrow
{
auto streamBytes = streamToBytesGC(stream);
auto endianResult = fixUTFByteOrder(streamBytes);
@ -127,6 +127,44 @@ final class Reader
this.sliceBuilder = SliceBuilder(this);
}
/// Construct a Reader.
///
/// Params: buffer = Buffer with YAML data. This may be e.g. the entire
/// contents of a file or a string. $(B will) be modified by
/// the Reader and other parts of D:YAML (D:YAML tries to
/// reuse the buffer to minimize memory allocations)
///
/// Throws: ReaderException on a UTF decoding error or if there are
/// nonprintable Unicode characters illegal in YAML.
this(ubyte[] buffer) @trusted pure //!nothrow
{
auto endianResult = fixUTFByteOrder(buffer);
if(endianResult.bytesStripped > 0)
{
throw new ReaderException("Size of UTF-16 or UTF-32 input not aligned "
"to 2 or 4 bytes, respectively");
}
version(unittest) { endian_ = endianResult.endian; }
encoding_ = endianResult.encoding;
auto utf8Result = toUTF8(endianResult.array, endianResult.encoding);
const msg = utf8Result.errorMessage;
if(msg !is null)
{
throw new ReaderException("Error when converting to UTF-8: " ~ msg);
}
buffer_ = utf8Result.utf8;
characterCount_ = utf8Result.characterCount;
// Check that all characters in buffer are printable.
enforce(isPrintableValidUTF8(buffer_),
new ReaderException("Special unicode characters are not allowed"));
this.sliceBuilder = SliceBuilder(this);
}
/// Get character at specified index relative to current position.
///
/// Params: index = Index of the character to get relative to current position