Changeset 32cab5b for src/Parser/lex.ll
- Timestamp:
- Apr 17, 2018, 12:01:09 PM (7 years ago)
- Branches:
- ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, deferred_resn, demangler, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, with_gc
- Children:
- 3265399
- Parents:
- b2fe1c9 (diff), 81bb114 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
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- 1 edited
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src/Parser/lex.ll
rb2fe1c9 r32cab5b 10 10 * Created On : Sat Sep 22 08:58:10 2001 11 11 * Last Modified By : Peter A. Buhr 12 * Last Modified On : Sat Mar 3 18:38:16201813 * Update Count : 6 4012 * Last Modified On : Fri Apr 6 15:16:15 2018 13 * Update Count : 670 14 14 */ 15 15 … … 54 54 55 55 void rm_underscore() { 56 // Remove underscores in numeric constant by copying the non-underscore characters to the front of the string.56 // SKULLDUGGERY: remove underscores (ok to shorten?) 57 57 yyleng = 0; 58 for ( int i = 0; yytext[i] != '\0'; i += 1 ) { 59 if ( yytext[i] == '`' ) { 60 // copy user suffix 61 for ( ; yytext[i] != '\0'; i += 1 ) { 62 yytext[yyleng] = yytext[i]; 63 yyleng += 1; 64 } // for 65 break; 66 } // if 58 for ( int i = 0; yytext[i] != '\0'; i += 1 ) { // copying non-underscore characters to front of string 67 59 if ( yytext[i] != '_' ) { 68 60 yytext[yyleng] = yytext[i]; … … 71 63 } // for 72 64 yytext[yyleng] = '\0'; 73 } 65 } // rm_underscore 74 66 75 67 // Stop warning due to incorrectly generated flex code. … … 90 82 attr_identifier "@"{identifier} 91 83 92 user_suffix_opt ("`"{identifier})?93 94 84 // numeric constants, CFA: '_' in constant 95 85 hex_quad {hex}("_"?{hex}){3} 96 86 size_opt (8|16|32|64|128)? 97 87 length ("ll"|"LL"|[lL]{size_opt})|("hh"|"HH"|[hH]) 98 integer_suffix_opt ("_"?(([uU]({length}?[iI]?)|([iI]{length}))|([iI]({length}?[uU]?)|([uU]{length}))|({length}([iI]?[uU]?)|([uU][iI]))|[zZ]))? {user_suffix_opt}88 integer_suffix_opt ("_"?(([uU]({length}?[iI]?)|([iI]{length}))|([iI]({length}?[uU]?)|([uU]{length}))|({length}([iI]?[uU]?)|([uU][iI]))|[zZ]))? 99 89 100 90 octal_digits ({octal})|({octal}({octal}|"_")*{octal}) … … 118 108 floating_length ([fFdDlL]|[lL]{floating_size}) 119 109 floating_suffix ({floating_length}?[iI]?)|([iI]{floating_length}) 120 floating_suffix_opt ("_"?({floating_suffix}|"DL"))? {user_suffix_opt}110 floating_suffix_opt ("_"?({floating_suffix}|"DL"))? 121 111 decimal_digits ({decimal})|({decimal}({decimal}|"_")*{decimal}) 122 112 floating_decimal {decimal_digits}"."{exponent}?{floating_suffix_opt} … … 125 115 126 116 binary_exponent "_"?[pP]"_"?[+-]?{decimal_digits} 127 hex_floating_suffix_opt ("_"?({floating_suffix}))? {user_suffix_opt}117 hex_floating_suffix_opt ("_"?({floating_suffix}))? 128 118 hex_floating_fraction ({hex_digits}?"."{hex_digits})|({hex_digits}".") 129 119 hex_floating_constant {hex_prefix}(({hex_floating_fraction}{binary_exponent})|({hex_digits}{binary_exponent})){hex_floating_suffix_opt} … … 208 198 __asm { KEYWORD_RETURN(ASM); } // GCC 209 199 __asm__ { KEYWORD_RETURN(ASM); } // GCC 210 _At { KEYWORD_RETURN(AT); } // CFA211 200 _Atomic { KEYWORD_RETURN(ATOMIC); } // C11 212 201 __attribute { KEYWORD_RETURN(ATTRIBUTE); } // GCC … … 239 228 exception { KEYWORD_RETURN(EXCEPTION); } // CFA 240 229 extern { KEYWORD_RETURN(EXTERN); } 230 fallthrough { KEYWORD_RETURN(FALLTHROUGH); } // CFA 241 231 fallthru { KEYWORD_RETURN(FALLTHRU); } // CFA 242 fallthrough { KEYWORD_RETURN(FALLTHROUGH); } // CFA243 232 finally { KEYWORD_RETURN(FINALLY); } // CFA 244 233 float { KEYWORD_RETURN(FLOAT); } … … 270 259 __builtin_offsetof { KEYWORD_RETURN(OFFSETOF); } // GCC 271 260 one_t { NUMERIC_RETURN(ONE_T); } // CFA 261 or { QKEYWORD_RETURN(WOR); } // CFA 272 262 otype { KEYWORD_RETURN(OTYPE); } // CFA 273 263 register { KEYWORD_RETURN(REGISTER); } … … 306 296 __volatile__ { KEYWORD_RETURN(VOLATILE); } // GCC 307 297 waitfor { KEYWORD_RETURN(WAITFOR); } 308 or { QKEYWORD_RETURN(WOR); } // CFA309 298 when { KEYWORD_RETURN(WHEN); } 310 299 while { KEYWORD_RETURN(WHILE); } … … 314 303 /* identifier */ 315 304 {identifier} { IDENTIFIER_RETURN(); } 305 "`"{identifier}"`" { // CFA 306 yytext[yyleng - 1] = '\0'; yytext += 1; // SKULLDUGGERY: remove backquotes (ok to shorten?) 307 IDENTIFIER_RETURN(); 308 } 316 309 {attr_identifier} { ATTRIBUTE_RETURN(); } 317 "`" { BEGIN BKQUOTE; }318 <BKQUOTE>{identifier} { IDENTIFIER_RETURN(); }319 <BKQUOTE>"`" { BEGIN 0; }320 310 321 311 /* numeric constants */ … … 332 322 ({cwide_prefix}[_]?)?['] { BEGIN QUOTE; rm_underscore(); strtext = new string( yytext, yyleng ); } 333 323 <QUOTE>[^'\\\n]* { strtext->append( yytext, yyleng ); } 334 <QUOTE>['\n] {user_suffix_opt}{ BEGIN 0; strtext->append( yytext, yyleng ); RETURN_STR(CHARACTERconstant); }324 <QUOTE>['\n] { BEGIN 0; strtext->append( yytext, yyleng ); RETURN_STR(CHARACTERconstant); } 335 325 /* ' stop editor highlighting */ 336 326 … … 338 328 ({swide_prefix}[_]?)?["] { BEGIN STRING; rm_underscore(); strtext = new string( yytext, yyleng ); } 339 329 <STRING>[^"\\\n]* { strtext->append( yytext, yyleng ); } 340 <STRING>["\n] {user_suffix_opt}{ BEGIN 0; strtext->append( yytext, yyleng ); RETURN_STR(STRINGliteral); }330 <STRING>["\n] { BEGIN 0; strtext->append( yytext, yyleng ); RETURN_STR(STRINGliteral); } 341 331 /* " stop editor highlighting */ 342 332 … … 348 338 /* punctuation */ 349 339 "@" { ASCIIOP_RETURN(); } 340 "`" { ASCIIOP_RETURN(); } 350 341 "[" { ASCIIOP_RETURN(); } 351 342 "]" { ASCIIOP_RETURN(); } … … 412 403 "?"({op_unary_pre_post}|"()"|"[?]"|"{}") { IDENTIFIER_RETURN(); } 413 404 "^?{}" { IDENTIFIER_RETURN(); } 414 "?`"{identifier} { IDENTIFIER_RETURN(); } // unitoperator405 "?`"{identifier} { IDENTIFIER_RETURN(); } // postfix operator 415 406 "?"{op_binary_over}"?" { IDENTIFIER_RETURN(); } // binary 416 407 /*
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