tuple<Token::Value, unsigned int, unsigned int> Token::fromIdentifierOrKeyword(string const& _literal)
{
auto positionM = find_if(_literal.begin(), _literal.end(), ::isdigit);
if (positionM != _literal.end())
{
string baseType(_literal.begin(), positionM);
auto positionX = find_if_not(positionM, _literal.end(), ::isdigit);
int m = parseSize(positionM, positionX);
Token::Value keyword = keywordByName(baseType);
if (keyword == Token::Bytes)
{
if (0 < m && m <= 32 && positionX == _literal.end())
return make_tuple(Token::BytesM, m, 0);
}
else if (keyword == Token::UInt || keyword == Token::Int)
{
if (0 < m && m <= 256 && m % 8 == 0 && positionX == _literal.end())
{
if (keyword == Token::UInt)
return make_tuple(Token::UIntM, m, 0);
else
return make_tuple(Token::IntM, m, 0);
}
}
else if (keyword == Token::UFixed || keyword == Token::Fixed)
{
if (
positionM < positionX &&
positionX < _literal.end() &&
*positionX == 'x' &&
all_of(positionX + 1, _literal.end(), ::isdigit)
) {
int n = parseSize(positionX + 1, _literal.end());
if (
0 <= m && m <= 256 &&
8 <= n && n <= 256 &&
m + n > 0 &&
m + n <= 256 &&
m % 8 == 0 &&
n % 8 == 0
) {
if (keyword == Token::UFixed)
return make_tuple(Token::UFixedMxN, m, n);
else
return make_tuple(Token::FixedMxN, m, n);
}
}
}
return make_tuple(Token::Identifier, 0, 0);
}
return make_tuple(keywordByName(_literal), 0, 0);
}
HaxeMessageSyntax::HaxeMessageSyntax()
{
DEFINE_VOID("SpaceChar", RANGE(" \n\r\t"));
DEFINE_VOID("Whitespace", REPEAT(INLINE("SpaceChar")));
specialChar_ =
DEFINE("SpecialChar",
GLUE(
CHAR('&'),
KEYWORD("gt lt"),
CHAR(';')
)
);
gt_ = keywordByName("gt");
lt_ = keywordByName("lt");
value_ =
DEFINE("Value",
REPEAT(1,
CHOICE(
REF("SpecialChar"),
GLUE(
NOT(
GLUE(
INLINE("Whitespace"),
CHAR('<')
)
),
ANY()
)
)
)
);
typeTip_ =
DEFINE("TypeTip",
GLUE(
STRING("<type>"),
INLINE("Whitespace"),
REF("Value"),
INLINE("Whitespace"),
STRING("</type>")
)
);
memberName_ = DEFINE("MemberName", REPEAT(1, OTHER('\"')));
memberType_ = DEFINE("MemberType", REPEAT(0, 1, INLINE("Value")));
memberDescription_ = DEFINE("MemberDescription", REPEAT(0, 1, INLINE("Value")));
member_ =
DEFINE("Member",
GLUE(
STRING("<i n=\""),
REF("MemberName"),
STRING("\"><t>"),
REF("MemberType"),
STRING("</t><d>"),
REF("MemberDescription"),
STRING("</d></i>")
)
);
membersTip_ =
DEFINE("MembersTip",
GLUE(
STRING("<list>"),
REPEAT(1,
GLUE(
INLINE("Whitespace"),
REF("Member")
)
),
INLINE("Whitespace"),
STRING("</list>")
)
);
haxeTip_ =
DEFINE("HaxeTip",
FIND(
GLUE(
INLINE("Whitespace"),
CHOICE(
REF("TypeTip"),
REF("MembersTip")
),
INLINE("Whitespace")
)
)
);
ENTRY("HaxeTip");
}
