boost/wave/cpplexer/re2clex/strict_cpp.re
/*=============================================================================
Boost.Wave: A Standard compliant C++ preprocessor library
Copyright (c) 2001 Daniel C. Nuffer
Copyright (c) 2001-2011 Hartmut Kaiser.
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
This is a strict lexer conforming to the Standard as close as possible.
It does not allow the '$' to be part of identifiers. If you need the '$'
character in identifiers please include the lexer definition provided
in the cpp.re file.
TODO:
handle errors better.
=============================================================================*/
/*!re2c
re2c:indent:string = " ";
any = [\t\v\f\r\n\040-\377];
anyctrl = [\001-\037];
OctalDigit = [0-7];
Digit = [0-9];
HexDigit = [a-fA-F0-9];
Integer = (("0" [xX] HexDigit+) | ("0" OctalDigit*) | ([1-9] Digit*));
ExponentStart = [Ee] [+-];
ExponentPart = [Ee] [+-]? Digit+;
FractionalConstant = (Digit* "." Digit+) | (Digit+ ".");
FloatingSuffix = [fF] [lL]? | [lL] [fF]?;
IntegerSuffix = [uU] [lL]? | [lL] [uU]?;
LongIntegerSuffix = [uU] ("ll" | "LL") | ("ll" | "LL") [uU]?;
Backslash = [\\] | "??/";
EscapeSequence = Backslash ([abfnrtv?'"] | Backslash | "x" HexDigit+ | OctalDigit OctalDigit? OctalDigit?);
HexQuad = HexDigit HexDigit HexDigit HexDigit;
UniversalChar = Backslash ("u" HexQuad | "U" HexQuad HexQuad);
Newline = "\r\n" | "\n" | "\r";
PPSpace = ([ \t\f\v]|("/*"(any\[*]|Newline|("*"+(any\[*/]|Newline)))*"*"+"/"))*;
Pound = "#" | "??=" | "%:";
NonDigit = [a-zA-Z_] | UniversalChar;
*/
/*!re2c
"/*" { goto ccomment; }
"//" { goto cppcomment; }
"."? Digit { goto pp_number; }
"alignas" { BOOST_WAVE_RET(s->act_in_cpp0x_mode ? T_ALIGNAS : T_IDENTIFIER); }
"alignof" { BOOST_WAVE_RET(s->act_in_cpp0x_mode ? T_ALIGNOF : T_IDENTIFIER); }
"asm" { BOOST_WAVE_RET(T_ASM); }
"auto" { BOOST_WAVE_RET(T_AUTO); }
"bool" { BOOST_WAVE_RET(T_BOOL); }
"break" { BOOST_WAVE_RET(T_BREAK); }
"case" { BOOST_WAVE_RET(T_CASE); }
"catch" { BOOST_WAVE_RET(T_CATCH); }
"char" { BOOST_WAVE_RET(T_CHAR); }
"char8_t" { BOOST_WAVE_RET(s->act_in_cpp2a_mode ? T_CHAR8_T : T_IDENTIFIER); }
"char16_t" { BOOST_WAVE_RET(s->act_in_cpp0x_mode ? T_CHAR16_T : T_IDENTIFIER); }
"char32_t" { BOOST_WAVE_RET(s->act_in_cpp0x_mode ? T_CHAR32_T : T_IDENTIFIER); }
"class" { BOOST_WAVE_RET(T_CLASS); }
"concept" { BOOST_WAVE_RET(s->act_in_cpp2a_mode ? T_CONCEPT : T_IDENTIFIER); }
"const" { BOOST_WAVE_RET(T_CONST); }
"consteval" { BOOST_WAVE_RET(s->act_in_cpp2a_mode ? T_CONSTEVAL : T_IDENTIFIER); }
"constexpr" { BOOST_WAVE_RET(s->act_in_cpp0x_mode ? T_CONSTEXPR : T_IDENTIFIER); }
"constinit" { BOOST_WAVE_RET(s->act_in_cpp2a_mode ? T_CONSTINIT : T_IDENTIFIER); }
"const_cast" { BOOST_WAVE_RET(T_CONSTCAST); }
"continue" { BOOST_WAVE_RET(T_CONTINUE); }
"co_await" { BOOST_WAVE_RET(s->act_in_cpp2a_mode ? T_CO_AWAIT : T_IDENTIFIER); }
"co_return" { BOOST_WAVE_RET(s->act_in_cpp2a_mode ? T_CO_RETURN : T_IDENTIFIER); }
"co_yield" { BOOST_WAVE_RET(s->act_in_cpp2a_mode ? T_CO_YIELD : T_IDENTIFIER); }
"decltype" { BOOST_WAVE_RET(s->act_in_cpp0x_mode ? T_DECLTYPE : T_IDENTIFIER); }
"default" { BOOST_WAVE_RET(T_DEFAULT); }
"delete" { BOOST_WAVE_RET(T_DELETE); }
"do" { BOOST_WAVE_RET(T_DO); }
"double" { BOOST_WAVE_RET(T_DOUBLE); }
"dynamic_cast" { BOOST_WAVE_RET(T_DYNAMICCAST); }
"else" { BOOST_WAVE_RET(T_ELSE); }
"enum" { BOOST_WAVE_RET(T_ENUM); }
"explicit" { BOOST_WAVE_RET(T_EXPLICIT); }
"export" { BOOST_WAVE_RET(T_EXPORT); }
"extern" { BOOST_WAVE_RET(T_EXTERN); }
"false" { BOOST_WAVE_RET(T_FALSE); }
"float" { BOOST_WAVE_RET(T_FLOAT); }
"for" { BOOST_WAVE_RET(T_FOR); }
"friend" { BOOST_WAVE_RET(T_FRIEND); }
"goto" { BOOST_WAVE_RET(T_GOTO); }
"if" { BOOST_WAVE_RET(T_IF); }
"import" { BOOST_WAVE_RET(s->enable_import_keyword ? T_IMPORT : T_IDENTIFIER); }
"inline" { BOOST_WAVE_RET(T_INLINE); }
"int" { BOOST_WAVE_RET(T_INT); }
"long" { BOOST_WAVE_RET(T_LONG); }
"mutable" { BOOST_WAVE_RET(T_MUTABLE); }
"namespace" { BOOST_WAVE_RET(T_NAMESPACE); }
"new" { BOOST_WAVE_RET(T_NEW); }
"noexcept" { BOOST_WAVE_RET(s->act_in_cpp0x_mode ? T_NOEXCEPT : T_IDENTIFIER); }
"nullptr" { BOOST_WAVE_RET(s->act_in_cpp0x_mode ? T_NULLPTR : T_IDENTIFIER); }
"operator" { BOOST_WAVE_RET(T_OPERATOR); }
"private" { BOOST_WAVE_RET(T_PRIVATE); }
"protected" { BOOST_WAVE_RET(T_PROTECTED); }
"public" { BOOST_WAVE_RET(T_PUBLIC); }
"register" { BOOST_WAVE_RET(T_REGISTER); }
"reinterpret_cast" { BOOST_WAVE_RET(T_REINTERPRETCAST); }
"requires" { BOOST_WAVE_RET(s->act_in_cpp2a_mode ? T_REQUIRES : T_IDENTIFIER); }
"return" { BOOST_WAVE_RET(T_RETURN); }
"short" { BOOST_WAVE_RET(T_SHORT); }
"signed" { BOOST_WAVE_RET(T_SIGNED); }
"sizeof" { BOOST_WAVE_RET(T_SIZEOF); }
"static" { BOOST_WAVE_RET(T_STATIC); }
"static_cast" { BOOST_WAVE_RET(T_STATICCAST); }
"static_assert" { BOOST_WAVE_RET(s->act_in_cpp0x_mode ? T_STATICASSERT : T_IDENTIFIER); }
"struct" { BOOST_WAVE_RET(T_STRUCT); }
"switch" { BOOST_WAVE_RET(T_SWITCH); }
"template" { BOOST_WAVE_RET(T_TEMPLATE); }
"this" { BOOST_WAVE_RET(T_THIS); }
"thread_local" { BOOST_WAVE_RET(s->act_in_cpp0x_mode ? T_THREADLOCAL : T_IDENTIFIER); }
"throw" { BOOST_WAVE_RET(T_THROW); }
"true" { BOOST_WAVE_RET(T_TRUE); }
"try" { BOOST_WAVE_RET(T_TRY); }
"typedef" { BOOST_WAVE_RET(T_TYPEDEF); }
"typeid" { BOOST_WAVE_RET(T_TYPEID); }
"typename" { BOOST_WAVE_RET(T_TYPENAME); }
"union" { BOOST_WAVE_RET(T_UNION); }
"unsigned" { BOOST_WAVE_RET(T_UNSIGNED); }
"using" { BOOST_WAVE_RET(T_USING); }
"virtual" { BOOST_WAVE_RET(T_VIRTUAL); }
"void" { BOOST_WAVE_RET(T_VOID); }
"volatile" { BOOST_WAVE_RET(T_VOLATILE); }
"wchar_t" { BOOST_WAVE_RET(T_WCHART); }
"while" { BOOST_WAVE_RET(T_WHILE); }
"__int8" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_INT8 : T_IDENTIFIER); }
"__int16" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_INT16 : T_IDENTIFIER); }
"__int32" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_INT32 : T_IDENTIFIER); }
"__int64" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_INT64 : T_IDENTIFIER); }
"_"? "_based" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_BASED : T_IDENTIFIER); }
"_"? "_declspec" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_DECLSPEC : T_IDENTIFIER); }
"_"? "_cdecl" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_CDECL : T_IDENTIFIER); }
"_"? "_fastcall" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_FASTCALL : T_IDENTIFIER); }
"_"? "_stdcall" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_STDCALL : T_IDENTIFIER); }
"__try" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_TRY : T_IDENTIFIER); }
"__except" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_EXCEPT : T_IDENTIFIER); }
"__finally" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_FINALLY : T_IDENTIFIER); }
"__leave" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_LEAVE : T_IDENTIFIER); }
"_"? "_inline" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_INLINE : T_IDENTIFIER); }
"_"? "_asm" { BOOST_WAVE_RET(s->enable_ms_extensions ? T_MSEXT_ASM : T_IDENTIFIER); }
"{" { BOOST_WAVE_RET(T_LEFTBRACE); }
"??<" { BOOST_WAVE_RET(T_LEFTBRACE_TRIGRAPH); }
"<%" { BOOST_WAVE_RET(T_LEFTBRACE_ALT); }
"}" { BOOST_WAVE_RET(T_RIGHTBRACE); }
"??>" { BOOST_WAVE_RET(T_RIGHTBRACE_TRIGRAPH); }
"%>" { BOOST_WAVE_RET(T_RIGHTBRACE_ALT); }
"[" { BOOST_WAVE_RET(T_LEFTBRACKET); }
"??(" { BOOST_WAVE_RET(T_LEFTBRACKET_TRIGRAPH); }
"<:" { BOOST_WAVE_RET(T_LEFTBRACKET_ALT); }
"]" { BOOST_WAVE_RET(T_RIGHTBRACKET); }
"??)" { BOOST_WAVE_RET(T_RIGHTBRACKET_TRIGRAPH); }
":>" { BOOST_WAVE_RET(T_RIGHTBRACKET_ALT); }
"#" { BOOST_WAVE_RET(T_POUND); }
"%:" { BOOST_WAVE_RET(T_POUND_ALT); }
"??=" { BOOST_WAVE_RET(T_POUND_TRIGRAPH); }
"##" { BOOST_WAVE_RET(T_POUND_POUND); }
"#??=" { BOOST_WAVE_RET(T_POUND_POUND_TRIGRAPH); }
"??=#" { BOOST_WAVE_RET(T_POUND_POUND_TRIGRAPH); }
"??=??=" { BOOST_WAVE_RET(T_POUND_POUND_TRIGRAPH); }
"%:%:" { BOOST_WAVE_RET(T_POUND_POUND_ALT); }
"(" { BOOST_WAVE_RET(T_LEFTPAREN); }
")" { BOOST_WAVE_RET(T_RIGHTPAREN); }
";" { BOOST_WAVE_RET(T_SEMICOLON); }
":" { BOOST_WAVE_RET(T_COLON); }
"..." { BOOST_WAVE_RET(T_ELLIPSIS); }
"?" { BOOST_WAVE_RET(T_QUESTION_MARK); }
"::"
{
if (s->act_in_c99_mode) {
--YYCURSOR;
BOOST_WAVE_RET(T_COLON);
}
else {
BOOST_WAVE_RET(T_COLON_COLON);
}
}
"." { BOOST_WAVE_RET(T_DOT); }
".*"
{
if (s->act_in_c99_mode) {
--YYCURSOR;
BOOST_WAVE_RET(T_DOT);
}
else {
BOOST_WAVE_RET(T_DOTSTAR);
}
}
"+" { BOOST_WAVE_RET(T_PLUS); }
"-" { BOOST_WAVE_RET(T_MINUS); }
"*" { BOOST_WAVE_RET(T_STAR); }
"/" { BOOST_WAVE_RET(T_DIVIDE); }
"%" { BOOST_WAVE_RET(T_PERCENT); }
"^" { BOOST_WAVE_RET(T_XOR); }
"??'" { BOOST_WAVE_RET(T_XOR_TRIGRAPH); }
"xor" { BOOST_WAVE_RET(s->act_in_c99_mode ? T_IDENTIFIER : T_XOR_ALT); }
"&" { BOOST_WAVE_RET(T_AND); }
"bitand" { BOOST_WAVE_RET(s->act_in_c99_mode ? T_IDENTIFIER : T_AND_ALT); }
"|" { BOOST_WAVE_RET(T_OR); }
"bitor" { BOOST_WAVE_RET(s->act_in_c99_mode ? T_IDENTIFIER : T_OR_ALT); }
"??!" { BOOST_WAVE_RET(T_OR_TRIGRAPH); }
"~" { BOOST_WAVE_RET(T_COMPL); }
"??-" { BOOST_WAVE_RET(T_COMPL_TRIGRAPH); }
"compl" { BOOST_WAVE_RET(s->act_in_c99_mode ? T_IDENTIFIER : T_COMPL_ALT); }
"!" { BOOST_WAVE_RET(T_NOT); }
"not" { BOOST_WAVE_RET(s->act_in_c99_mode ? T_IDENTIFIER : T_NOT_ALT); }
"=" { BOOST_WAVE_RET(T_ASSIGN); }
"<" { BOOST_WAVE_RET(T_LESS); }
">" { BOOST_WAVE_RET(T_GREATER); }
"+=" { BOOST_WAVE_RET(T_PLUSASSIGN); }
"-=" { BOOST_WAVE_RET(T_MINUSASSIGN); }
"*=" { BOOST_WAVE_RET(T_STARASSIGN); }
"/=" { BOOST_WAVE_RET(T_DIVIDEASSIGN); }
"%=" { BOOST_WAVE_RET(T_PERCENTASSIGN); }
"^=" { BOOST_WAVE_RET(T_XORASSIGN); }
"xor_eq" { BOOST_WAVE_RET(s->act_in_c99_mode ? T_IDENTIFIER : T_XORASSIGN_ALT); }
"??'=" { BOOST_WAVE_RET(T_XORASSIGN_TRIGRAPH); }
"&=" { BOOST_WAVE_RET(T_ANDASSIGN); }
"and_eq" { BOOST_WAVE_RET(s->act_in_c99_mode ? T_IDENTIFIER : T_ANDASSIGN_ALT); }
"|=" { BOOST_WAVE_RET(T_ORASSIGN); }
"or_eq" { BOOST_WAVE_RET(s->act_in_c99_mode ? T_IDENTIFIER : T_ORASSIGN_ALT); }
"??!=" { BOOST_WAVE_RET(T_ORASSIGN_TRIGRAPH); }
"<<" { BOOST_WAVE_RET(T_SHIFTLEFT); }
">>" { BOOST_WAVE_RET(T_SHIFTRIGHT); }
">>=" { BOOST_WAVE_RET(T_SHIFTRIGHTASSIGN); }
"<<=" { BOOST_WAVE_RET(T_SHIFTLEFTASSIGN); }
"==" { BOOST_WAVE_RET(T_EQUAL); }
"!=" { BOOST_WAVE_RET(T_NOTEQUAL); }
"not_eq" { BOOST_WAVE_RET(s->act_in_c99_mode ? T_IDENTIFIER : T_NOTEQUAL_ALT); }
"<=>"
{
if (s->act_in_cpp2a_mode) {
BOOST_WAVE_RET(T_SPACESHIP);
}
else {
--YYCURSOR;
BOOST_WAVE_RET(T_LESSEQUAL);
}
}
"<=" { BOOST_WAVE_RET(T_LESSEQUAL); }
">=" { BOOST_WAVE_RET(T_GREATEREQUAL); }
"&&" { BOOST_WAVE_RET(T_ANDAND); }
"and" { BOOST_WAVE_RET(s->act_in_c99_mode ? T_IDENTIFIER : T_ANDAND_ALT); }
"||" { BOOST_WAVE_RET(T_OROR); }
"??!|" { BOOST_WAVE_RET(T_OROR_TRIGRAPH); }
"|??!" { BOOST_WAVE_RET(T_OROR_TRIGRAPH); }
"or" { BOOST_WAVE_RET(s->act_in_c99_mode ? T_IDENTIFIER : T_OROR_ALT); }
"??!??!" { BOOST_WAVE_RET(T_OROR_TRIGRAPH); }
"++" { BOOST_WAVE_RET(T_PLUSPLUS); }
"--" { BOOST_WAVE_RET(T_MINUSMINUS); }
"," { BOOST_WAVE_RET(T_COMMA); }
"->*"
{
if (s->act_in_c99_mode) {
--YYCURSOR;
BOOST_WAVE_RET(T_ARROW);
}
else {
BOOST_WAVE_RET(T_ARROWSTAR);
}
}
"->" { BOOST_WAVE_RET(T_ARROW); }
"??/" { BOOST_WAVE_RET(T_ANY_TRIGRAPH); }
"L"? (['] (EscapeSequence | UniversalChar | any\[\n\r\\'])+ ['])
{ BOOST_WAVE_RET(T_CHARLIT); }
"L"? (["] (EscapeSequence | UniversalChar | any\[\n\r\\"])* ["])
{ BOOST_WAVE_RET(T_STRINGLIT); }
"L"? "R" ["]
{
if (s->act_in_cpp0x_mode)
{
rawstringdelim = "";
goto extrawstringlit;
}
--YYCURSOR;
BOOST_WAVE_RET(T_IDENTIFIER);
}
[uU] [']
{
if (s->act_in_cpp0x_mode)
goto extcharlit;
--YYCURSOR;
BOOST_WAVE_RET(T_IDENTIFIER);
}
([uU] | "u8") ["]
{
if (s->act_in_cpp0x_mode)
goto extstringlit;
--YYCURSOR;
BOOST_WAVE_RET(T_IDENTIFIER);
}
([uU] | "u8") "R" ["]
{
if (s->act_in_cpp0x_mode)
{
rawstringdelim = "";
goto extrawstringlit;
}
--YYCURSOR;
BOOST_WAVE_RET(T_IDENTIFIER);
}
([a-zA-Z_] | UniversalChar) ([a-zA-Z_0-9] | UniversalChar)*
{ BOOST_WAVE_RET(T_IDENTIFIER); }
Pound PPSpace ( "include" | "include_next") PPSpace "<" (any\[\n\r>])+ ">"
{ BOOST_WAVE_RET(T_PP_HHEADER); }
Pound PPSpace ( "include" | "include_next") PPSpace "\"" (any\[\n\r"])+ "\""
{ BOOST_WAVE_RET(T_PP_QHEADER); }
Pound PPSpace ( "include" | "include_next") PPSpace
{ BOOST_WAVE_RET(T_PP_INCLUDE); }
Pound PPSpace "if" { BOOST_WAVE_RET(T_PP_IF); }
Pound PPSpace "ifdef" { BOOST_WAVE_RET(T_PP_IFDEF); }
Pound PPSpace "ifndef" { BOOST_WAVE_RET(T_PP_IFNDEF); }
Pound PPSpace "else" { BOOST_WAVE_RET(T_PP_ELSE); }
Pound PPSpace "elif" { BOOST_WAVE_RET(T_PP_ELIF); }
Pound PPSpace "endif" { BOOST_WAVE_RET(T_PP_ENDIF); }
Pound PPSpace "define" { BOOST_WAVE_RET(T_PP_DEFINE); }
Pound PPSpace "undef" { BOOST_WAVE_RET(T_PP_UNDEF); }
Pound PPSpace "line" { BOOST_WAVE_RET(T_PP_LINE); }
Pound PPSpace "error" { BOOST_WAVE_RET(T_PP_ERROR); }
Pound PPSpace "pragma" { BOOST_WAVE_RET(T_PP_PRAGMA); }
Pound PPSpace "warning" { BOOST_WAVE_RET(T_PP_WARNING); }
Pound PPSpace "region" { BOOST_WAVE_RET(T_MSEXT_PP_REGION); }
Pound PPSpace "endregion" { BOOST_WAVE_RET(T_MSEXT_PP_ENDREGION); }
[ \t\v\f]+
{ BOOST_WAVE_RET(T_SPACE); }
Newline
{
s->line++;
cursor.column = 1;
BOOST_WAVE_RET(T_NEWLINE);
}
"\000"
{
if (s->eof && cursor != s->eof)
{
BOOST_WAVE_UPDATE_CURSOR(); // adjust the input cursor
(*s->error_proc)(s, lexing_exception::generic_lexing_error,
"invalid character '\\000' in input stream");
}
BOOST_WAVE_RET(T_EOF);
}
any { BOOST_WAVE_RET(TOKEN_FROM_ID(*s->tok, UnknownTokenType)); }
anyctrl
{
// flag the error
BOOST_WAVE_UPDATE_CURSOR(); // adjust the input cursor
(*s->error_proc)(s, lexing_exception::generic_lexing_error,
"invalid character '\\%03o' in input stream", *--YYCURSOR);
}
*/
ccomment:
/*!re2c
"*/" { BOOST_WAVE_RET(T_CCOMMENT); }
Newline
{
/*if(cursor == s->eof) BOOST_WAVE_RET(T_EOF);*/
/*s->tok = cursor; */
s->line += count_backslash_newlines(s, cursor) +1;
cursor.column = 1;
goto ccomment;
}
any { goto ccomment; }
"\000"
{
if(cursor == s->eof)
{
BOOST_WAVE_UPDATE_CURSOR(); // adjust the input cursor
(*s->error_proc)(s, lexing_exception::generic_lexing_warning,
"Unterminated 'C' style comment");
}
else
{
--YYCURSOR; // next call returns T_EOF
BOOST_WAVE_UPDATE_CURSOR(); // adjust the input cursor
(*s->error_proc)(s, lexing_exception::generic_lexing_error,
"invalid character: '\\000' in input stream");
}
}
anyctrl
{
// flag the error
BOOST_WAVE_UPDATE_CURSOR(); // adjust the input cursor
(*s->error_proc)(s, lexing_exception::generic_lexing_error,
"invalid character '\\%03o' in input stream", *--YYCURSOR);
}
*/
cppcomment:
/*!re2c
Newline
{
/*if(cursor == s->eof) BOOST_WAVE_RET(T_EOF); */
/*s->tok = cursor; */
s->line++;
cursor.column = 1;
BOOST_WAVE_RET(T_CPPCOMMENT);
}
any { goto cppcomment; }
"\000"
{
if (s->eof && cursor != s->eof)
{
--YYCURSOR; // next call returns T_EOF
BOOST_WAVE_UPDATE_CURSOR(); // adjust the input cursor
(*s->error_proc)(s, lexing_exception::generic_lexing_error,
"invalid character '\\000' in input stream");
}
--YYCURSOR; // next call returns T_EOF
if (!s->single_line_only)
{
BOOST_WAVE_UPDATE_CURSOR(); // adjust the input cursor
(*s->error_proc)(s, lexing_exception::generic_lexing_warning,
"Unterminated 'C++' style comment");
}
BOOST_WAVE_RET(T_CPPCOMMENT);
}
anyctrl
{
// flag the error
BOOST_WAVE_UPDATE_CURSOR(); // adjust the input cursor
(*s->error_proc)(s, lexing_exception::generic_lexing_error,
"invalid character '\\%03o' in input stream", *--YYCURSOR);
}
*/
/* this subscanner is called whenever a pp_number has been started */
pp_number:
{
cursor = uchar_wrapper(s->tok = s->cur, s->column = s->curr_column);
marker = uchar_wrapper(s->ptr);
limit = uchar_wrapper(s->lim);
if (s->detect_pp_numbers) {
/*!re2c
"."? Digit (Digit | NonDigit | ExponentStart | ".")*
{ BOOST_WAVE_RET(T_PP_NUMBER); }
* { BOOST_ASSERT(false); }
*/
}
else {
/*!re2c
((FractionalConstant ExponentPart?) | (Digit+ ExponentPart)) FloatingSuffix?
{ BOOST_WAVE_RET(T_FLOATLIT); }
Integer { goto integer_suffix; }
* { BOOST_ASSERT(false); }
*/
}
}
/* this subscanner is called, whenever an Integer was recognized */
integer_suffix:
{
if (s->enable_ms_extensions) {
/*!re2c
LongIntegerSuffix | "i64"
{ BOOST_WAVE_RET(T_LONGINTLIT); }
IntegerSuffix?
{ BOOST_WAVE_RET(T_INTLIT); }
*/
}
else {
/*!re2c
LongIntegerSuffix
{ BOOST_WAVE_RET(T_LONGINTLIT); }
IntegerSuffix?
{ BOOST_WAVE_RET(T_INTLIT); }
*/
}
// re2c will complain about -Wmatch-empty-string above
// it's OK because we've already matched an integer
// and will return T_INTLIT
}
/* this subscanner is invoked for C++0x extended character literals */
extcharlit:
{
/*!re2c
* {
(*s->error_proc)(s, lexing_exception::generic_lexing_error,
"Invalid character in raw string delimiter ('%c')", yych);
}
((EscapeSequence | UniversalChar | any\[\n\r\\']) ['])
{ BOOST_WAVE_RET(T_CHARLIT); }
any
{ BOOST_WAVE_RET(TOKEN_FROM_ID(*s->tok, UnknownTokenType)); }
*/
}
/* this subscanner is invoked for C++0x extended character string literals */
extstringlit:
{
/*!re2c
* {
(*s->error_proc)(s, lexing_exception::generic_lexing_error,
"Invalid character in raw string delimiter ('%c')", yych);
}
((EscapeSequence | UniversalChar | any\[\n\r\\"])* ["])
{ BOOST_WAVE_RET(T_STRINGLIT); }
any
{ BOOST_WAVE_RET(TOKEN_FROM_ID(*s->tok, UnknownTokenType)); }
*/
}
extrawstringlit:
{
// we have consumed the double quote but not the lparen
// at this point we may see a delimiter
/*!re2c
* {
(*s->error_proc)(s, lexing_exception::generic_lexing_error,
"Invalid character in raw string delimiter ('%c')", yych);
}
// delimiters are any character but parentheses, backslash, and whitespace
any\[()\\\t\v\f\r\n]
{
rawstringdelim += yych;
if (rawstringdelim.size() > 16)
{
(*s->error_proc)(s, lexing_exception::generic_lexing_error,
"Raw string delimiter of excessive length (\"%s\") in input stream",
rawstringdelim.c_str());
}
goto extrawstringlit;
}
"("
{
rawstringdelim = ")" + rawstringdelim;
goto extrawstringbody;
}
*/
}
extrawstringbody:
{
/*!re2c
* {
(*s->error_proc)(s, lexing_exception::generic_lexing_error,
"Invalid character in raw string body ('%c')", yych);
}
Newline
{
s->line += count_backslash_newlines(s, cursor) +1;
cursor.column = 1;
goto extrawstringbody;
}
(EscapeSequence | UniversalChar | any\["])
{
goto extrawstringbody;
}
["]
{
// check to see if we have completed a delimiter
if (string_type((char *)(YYCURSOR - rawstringdelim.size() - 1),
(char *)(YYCURSOR - 1)) == rawstringdelim)
{
BOOST_WAVE_RET(T_RAWSTRINGLIT);
} else {
goto extrawstringbody;
}
}
*/
}
