retoor/wren
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add Support for \U Style Unicode Escapes

Browse Source 
This allows fuky things such as 🚀 and 😀 to be Direclty encoded in
Wren strings.
This commit is contained in:
Will Speak
2015-10-17 10:35:46 +01:00
parent 49601e67c5
commit d45c0d7f82
4 changed files with 17 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/vm/wren_compiler.c
+5 -5
View File
@@ -702,10 +702,10 @@ static int readHexEscape(Parser* parser, int digits, const char* description)
return value;
}
// Reads a four hex digit Unicode escape sequence in a string literal.
static void readUnicodeEscape(Parser* parser, ByteBuffer* string)
// Reads a hex digit Unicode escape sequence in a string literal.
static void readUnicodeEscape(Parser* parser, ByteBuffer* string, int length)
{
int value = readHexEscape(parser, 4, "Unicode");
int value = readHexEscape(parser, length, "Unicode");
// Grow the buffer enough for the encoded result.
int numBytes = wrenUtf8EncodeNumBytes(value);
@@ -750,8 +750,8 @@ static void readString(Parser* parser)
case 'n': wrenByteBufferWrite(parser->vm, &string, '\n'); break;
case 'r': wrenByteBufferWrite(parser->vm, &string, '\r'); break;
case 't': wrenByteBufferWrite(parser->vm, &string, '\t'); break;
case 'u': readUnicodeEscape(parser, &string); break;
// TODO: 'U' for 8 octet Unicode escapes.
case 'u': readUnicodeEscape(parser, &string, 4); break;
case 'U': readUnicodeEscape(parser, &string, 8); break;
case 'v': wrenByteBufferWrite(parser->vm, &string, '\v'); break;
case 'x':
wrenByteBufferWrite(parser->vm, &string,