142 lines
3 KiB
Plaintext
142 lines
3 KiB
Plaintext
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funarglist:
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{ $$ = 0; }
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| funargs
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{ $$ = revchain($1); }
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;
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funargs: expr
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{ $$ = mkchain((char *)$1, CHNULL); }
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| funargs SCOMMA expr
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{ $$ = mkchain((char *)$3, $1); }
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;
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expr: uexpr
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| SLPAR expr SRPAR { $$ = $2; }
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| complex_const
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;
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uexpr: lhs
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| simple_const
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| expr addop expr %prec SPLUS
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{ $$ = mkexpr($2, $1, $3); }
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| expr SSTAR expr
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{ $$ = mkexpr(OPSTAR, $1, $3); }
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| expr SSLASH expr
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{ $$ = mkexpr(OPSLASH, $1, $3); }
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| expr SPOWER expr
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{ $$ = mkexpr(OPPOWER, $1, $3); }
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| addop expr %prec SSTAR
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{ if($1 == OPMINUS)
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$$ = mkexpr(OPNEG, $2, ENULL);
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else $$ = $2;
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}
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| expr relop expr %prec SEQ
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{ $$ = mkexpr($2, $1, $3); }
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| expr SEQV expr
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{ NO66(".EQV. operator");
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$$ = mkexpr(OPEQV, $1,$3); }
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| expr SNEQV expr
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{ NO66(".NEQV. operator");
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$$ = mkexpr(OPNEQV, $1, $3); }
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| expr SOR expr
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{ $$ = mkexpr(OPOR, $1, $3); }
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| expr SAND expr
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{ $$ = mkexpr(OPAND, $1, $3); }
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| SNOT expr
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{ $$ = mkexpr(OPNOT, $2, ENULL); }
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| expr SCONCAT expr
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{ NO66("concatenation operator //");
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$$ = mkexpr(OPCONCAT, $1, $3); }
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;
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addop: SPLUS { $$ = OPPLUS; }
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| SMINUS { $$ = OPMINUS; }
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;
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relop: SEQ { $$ = OPEQ; }
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| SGT { $$ = OPGT; }
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| SLT { $$ = OPLT; }
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| SGE { $$ = OPGE; }
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| SLE { $$ = OPLE; }
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| SNE { $$ = OPNE; }
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;
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lhs: name
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{ $$ = mkprim($1, LBNULL, CHNULL); }
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| name substring
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{ NO66("substring operator :");
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$$ = mkprim($1, LBNULL, $2); }
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| name SLPAR funarglist SRPAR
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{ $$ = mkprim($1, mklist($3), CHNULL); }
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| name SLPAR funarglist SRPAR substring
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{ NO66("substring operator :");
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$$ = mkprim($1, mklist($3), $5); }
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;
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substring: SLPAR opt_expr SCOLON opt_expr SRPAR
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{ $$ = mkchain((char *)$2, mkchain((char *)$4,CHNULL)); }
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;
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opt_expr:
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{ $$ = 0; }
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| expr
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;
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simple: name
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{ if($1->vclass == CLPARAM)
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$$ = (expptr) cpexpr(
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( (struct Paramblock *) ($1) ) -> paramval);
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}
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| simple_const
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;
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simple_const: STRUE { $$ = mklogcon(1); }
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| SFALSE { $$ = mklogcon(0); }
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| SHOLLERITH { $$ = mkstrcon(toklen, token); }
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| SICON = { $$ = mkintcon( convci(toklen, token) ); }
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| SRCON = { $$ = mkrealcon(tyreal, token); }
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| SDCON = { $$ = mkrealcon(TYDREAL, token); }
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| bit_const
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;
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complex_const: SLPAR uexpr SCOMMA uexpr SRPAR
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{ $$ = mkcxcon($2,$4); }
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;
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bit_const: SHEXCON
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{ NOEXT("hex constant");
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$$ = mkbitcon(4, toklen, token); }
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| SOCTCON
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{ NOEXT("octal constant");
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$$ = mkbitcon(3, toklen, token); }
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| SBITCON
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{ NOEXT("binary constant");
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$$ = mkbitcon(1, toklen, token); }
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;
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fexpr: unpar_fexpr
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| SLPAR fexpr SRPAR
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{ $$ = $2; }
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;
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unpar_fexpr: lhs
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| simple_const
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| fexpr addop fexpr %prec SPLUS
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{ $$ = mkexpr($2, $1, $3); }
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| fexpr SSTAR fexpr
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{ $$ = mkexpr(OPSTAR, $1, $3); }
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| fexpr SSLASH fexpr
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{ $$ = mkexpr(OPSLASH, $1, $3); }
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| fexpr SPOWER fexpr
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{ $$ = mkexpr(OPPOWER, $1, $3); }
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| addop fexpr %prec SSTAR
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{ if($1 == OPMINUS)
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$$ = mkexpr(OPNEG, $2, ENULL);
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else $$ = $2;
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}
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| fexpr SCONCAT fexpr
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{ NO66("concatenation operator //");
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$$ = mkexpr(OPCONCAT, $1, $3); }
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;
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