diff options
Diffstat (limited to 'test/ragel.d/lmgoto.rl')
| -rw-r--r-- | test/ragel.d/lmgoto.rl | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/test/ragel.d/lmgoto.rl b/test/ragel.d/lmgoto.rl deleted file mode 100644 index 53284f41..00000000 --- a/test/ragel.d/lmgoto.rl +++ /dev/null @@ -1,197 +0,0 @@ -/* - * @LANG: c++ - */ - -#include <iostream> -#include <string.h> -using namespace std; - -#define TK_Dlit 192 -#define TK_Slit 193 -#define TK_Float 194 -#define TK_Id 195 -#define TK_NameSep 197 -#define TK_Arrow 211 -#define TK_PlusPlus 212 -#define TK_MinusMinus 213 -#define TK_ArrowStar 214 -#define TK_DotStar 215 -#define TK_ShiftLeft 216 -#define TK_ShiftRight 217 -#define TK_IntegerDecimal 218 -#define TK_IntegerOctal 219 -#define TK_IntegerHex 220 -#define TK_EqualsEquals 223 -#define TK_NotEquals 224 -#define TK_AndAnd 225 -#define TK_OrOr 226 -#define TK_MultAssign 227 -#define TK_DivAssign 228 -#define TK_PercentAssign 229 -#define TK_PlusAssign 230 -#define TK_MinusAssign 231 -#define TK_AmpAssign 232 -#define TK_CaretAssign 233 -#define TK_BarAssign 234 -#define TK_DotDotDot 240 -#define TK_Whitespace 241 -#define TK_Comment 242 - -struct Scanner -{ - int cs, act; - const char *ts, *te; - bool isCxx; - - void token( int tok ); - void run( const char *buf ); -}; - - -%%{ - machine Scanner; - - # Process all comments, relies on isCxx being set. - comment := |* - '*/' { - if ( ! isCxx ) - fgoto main; - else { - cout << "comm char: " << ts[0] << endl; - cout << "comm char: " << ts[1] << endl; - } - }; - - '\n' { - if ( isCxx ) - fgoto main; - else - cout << "comm char: " << ts[0] << endl; - }; - - any { - cout << "comm char: " << ts[0] << endl; - }; - *|; - - main := |* - - # Single and double literals. - ( 'L'? "'" ( [^'\\\n] | /\\./ )* "'" ) { token( TK_Slit );}; - ( 'L'? '"' ( [^"\\\n] | /\\./ )* '"' ) { token( TK_Dlit );}; - - # Identifiers - ( [a-zA-Z_] [a-zA-Z0-9_]* ) { token( TK_Id ); }; - - # Floating literals. - fract_const = digit* '.' digit+ | digit+ '.'; - exponent = [eE] [+\-]? digit+; - float_suffix = [flFL]; - - ( fract_const exponent? float_suffix? | - digit+ exponent float_suffix? ) { token( TK_Float );}; - - # Integer decimal. Leading part buffered by float. - ( ( '0' | [1-9] [0-9]* ) [ulUL]{0,3} ) { token( TK_IntegerDecimal );}; - - # Integer octal. Leading part buffered by float. - ( '0' [0-9]+ [ulUL]{0,2} ) { token( TK_IntegerOctal );}; - - # Integer hex. Leading 0 buffered by float. - ( '0' ( 'x' [0-9a-fA-F]+ [ulUL]{0,2} ) ) { token( TK_IntegerHex );}; - - # Only buffer the second item, first buffered by symbol. */ - '::' {token( TK_NameSep );}; - '==' {token( TK_EqualsEquals );}; - '!=' {token( TK_NotEquals );}; - '&&' {token( TK_AndAnd );}; - '||' {token( TK_OrOr );}; - '*=' {token( TK_MultAssign );}; - '/=' {token( TK_DivAssign );}; - '%=' {token( TK_PercentAssign );}; - '+=' {token( TK_PlusAssign );}; - '-=' {token( TK_MinusAssign );}; - '&=' {token( TK_AmpAssign );}; - '^=' {token( TK_CaretAssign );}; - '|=' {token( TK_BarAssign );}; - '++' {token( TK_PlusPlus );}; - '--' {token( TK_MinusMinus );}; - '->' {token( TK_Arrow );}; - '->*' {token( TK_ArrowStar );}; - '.*' {token( TK_DotStar );}; - - # Three char compounds, first item already buffered. */ - '...' { token( TK_DotDotDot );}; - - # Single char symbols. - ( punct - [_"'] ) { token( ts[0] );}; - - # Comments and whitespace. Handle these outside of the machine so that se - # don't end up buffering the comments. - '/*' { isCxx = false; fgoto comment; }; - '//' { isCxx = true; fgoto comment; }; - - ( any - 33..126 )+ { token( TK_Whitespace );}; - - *|; -}%% - -%% write data nofinal; - -void Scanner::token( int tok ) -{ - const char *data = ts; - int len = te - ts; - cout << "<" << tok << "> "; - if ( data != 0 ) { - for ( int i = 0; i < len; i++ ) - cout << data[i]; - } - cout << '\n'; -} - -void Scanner::run( const char *buf ) -{ - int len = strlen( buf ); - %% write init; - const char *p = buf; - const char *pe = buf + len; - const char *eof = pe; - %% write exec; - - if ( cs == Scanner_error ) { - /* Machine failed before finding a token. */ - cout << "PARSE ERROR" << endl; - } -} - -int main() -{ - Scanner scanner; - scanner.run( - "//hello*/\n" - "/*hi there*/ hello 0x88" - ); - return 0; -} - -##### OUTPUT ##### -comm char: h -comm char: e -comm char: l -comm char: l -comm char: o -comm char: * -comm char: / -comm char: h -comm char: i -comm char: -comm char: t -comm char: h -comm char: e -comm char: r -comm char: e -<241> -<195> hello -<241> -<220> 0x88 |