437 lines
11 KiB
Diff
437 lines
11 KiB
Diff
diff -Naur App-a2p-1.007.orig/a2p.y App-a2p-1.007.yacc/a2p.y
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--- App-a2p-1.007.orig/a2p.y 1970-01-01 01:00:00.000000000 +0100
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+++ App-a2p-1.007.yacc/a2p.y 2015-01-03 08:06:54.249838926 +0100
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@@ -0,0 +1,432 @@
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+%{
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+/* $RCSfile: a2p.y,v $$Revision: 4.1 $$Date: 92/08/07 18:29:12 $
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+ *
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+ * Copyright (C) 1991, 1992, 1993, 1994, 1996, 1997, 1999, 2000,
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+ * by Larry Wall and others
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+ *
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+ * You may distribute under the terms of either the GNU General Public
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+ * License or the Artistic License, as specified in the README file.
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+ *
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+ * $Log: a2p.y,v $
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+ */
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+
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+#include "INTERN.h"
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+#include "a2p.h"
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+
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+int root;
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+int begins = Nullop;
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+int ends = Nullop;
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+
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+%}
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+%token BEGIN END
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+%token REGEX
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+%token SEMINEW NEWLINE COMMENT
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+%token FUN1 FUNN GRGR
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+%token PRINT PRINTF SPRINTF_OLD SPRINTF_NEW SPLIT
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+%token IF ELSE WHILE FOR IN
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+%token EXIT NEXT BREAK CONTINUE RET
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+%token GETLINE DO SUB GSUB MATCH
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+%token FUNCTION USERFUN DELETE
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+
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+%right ASGNOP
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+%right '?' ':'
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+%left OROR
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+%left ANDAND
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+%left IN
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+%left NUMBER VAR SUBSTR INDEX
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+%left MATCHOP
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+%left RELOP '<' '>'
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+%left OR
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+%left STRING
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+%left '+' '-'
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+%left '*' '/' '%'
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+%right UMINUS
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+%left NOT
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+%right '^'
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+%left INCR DECR
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+%left FIELD VFIELD SVFIELD
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+
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+%%
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+
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+program : junk hunks
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+ { root = oper4(OPROG,$1,begins,$2,ends); }
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+ ;
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+
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+begin : BEGIN '{' maybe states '}' junk
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+ { begins = oper4(OJUNK,begins,$3,$4,$6); in_begin = FALSE;
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+ $$ = Nullop; }
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+ ;
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+
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+end : END '{' maybe states '}'
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+ { ends = oper3(OJUNK,ends,$3,$4); $$ = Nullop; }
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+ | end NEWLINE
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+ { $$ = $1; }
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+ ;
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+
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+hunks : hunks hunk junk
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+ { $$ = oper3(OHUNKS,$1,$2,$3); }
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+ | /* NULL */
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+ { $$ = Nullop; }
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+ ;
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+
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+hunk : patpat
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+ { $$ = oper1(OHUNK,$1); need_entire = TRUE; }
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+ | patpat '{' maybe states '}'
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+ { $$ = oper2(OHUNK,$1,oper2(OJUNK,$3,$4)); }
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+ | FUNCTION USERFUN '(' arg_list ')' maybe '{' maybe states '}'
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+ { fixfargs($2,$4,0); $$ = oper5(OUSERDEF,$2,$4,$6,$8,$9); }
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+ | '{' maybe states '}'
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+ { $$ = oper2(OHUNK,Nullop,oper2(OJUNK,$2,$3)); }
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+ | begin
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+ | end
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+ ;
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+
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+arg_list: expr_list
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+ { $$ = rememberargs($$); }
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+ ;
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+
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+patpat : cond
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+ { $$ = oper1(OPAT,$1); }
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+ | cond ',' cond
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+ { $$ = oper2(ORANGE,$1,$3); }
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+ ;
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+
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+cond : expr
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+ | match
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+ | rel
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+ | compound_cond
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+ | cond '?' expr ':' expr
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+ { $$ = oper3(OCOND,$1,$3,$5); }
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+ ;
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+
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+compound_cond
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+ : '(' compound_cond ')'
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+ { $$ = oper1(OCPAREN,$2); }
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+ | cond ANDAND maybe cond
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+ { $$ = oper3(OCANDAND,$1,$3,$4); }
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+ | cond OROR maybe cond
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+ { $$ = oper3(OCOROR,$1,$3,$4); }
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+ | NOT cond
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+ { $$ = oper1(OCNOT,$2); }
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+ ;
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+
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+rel : expr RELOP expr
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+ { $$ = oper3(ORELOP,$2,$1,$3); }
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+ | expr '>' expr
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+ { $$ = oper3(ORELOP,string(">",1),$1,$3); }
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+ | expr '<' expr
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+ { $$ = oper3(ORELOP,string("<",1),$1,$3); }
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+ | '(' rel ')'
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+ { $$ = oper1(ORPAREN,$2); }
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+ ;
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+
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+match : expr MATCHOP expr
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+ { $$ = oper3(OMATCHOP,$2,$1,$3); }
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+ | expr MATCHOP REGEX
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+ { $$ = oper3(OMATCHOP,$2,$1,oper1(OREGEX,$3)); }
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+ | REGEX %prec MATCHOP
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+ { $$ = oper1(OREGEX,$1); }
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+ | '(' match ')'
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+ { $$ = oper1(OMPAREN,$2); }
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+ ;
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+
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+expr : term
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+ { $$ = $1; }
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+ | expr term
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+ { $$ = oper2(OCONCAT,$1,$2); }
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+ | expr '?' expr ':' expr
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+ { $$ = oper3(OCOND,$1,$3,$5); }
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+ | variable ASGNOP cond
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+ {
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+ $$ = oper3(OASSIGN,$2,$1,$3);
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+ if ((ops[$1].ival & 255) == OFLD)
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+ lval_field = TRUE;
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+ else if ((ops[$1].ival & 255) == OVFLD)
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+ lval_field = TRUE;
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+ }
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+ ;
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+
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+sprintf : SPRINTF_NEW
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+ | SPRINTF_OLD ;
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+
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+term : variable
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+ { $$ = $1; }
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+ | NUMBER
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+ { $$ = oper1(ONUM,$1); }
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+ | STRING
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+ { $$ = oper1(OSTR,$1); }
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+ | term '+' term
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+ { $$ = oper2(OADD,$1,$3); }
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+ | term '-' term
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+ { $$ = oper2(OSUBTRACT,$1,$3); }
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+ | term '*' term
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+ { $$ = oper2(OMULT,$1,$3); }
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+ | term '/' term
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+ { $$ = oper2(ODIV,$1,$3); }
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+ | term '%' term
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+ { $$ = oper2(OMOD,$1,$3); }
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+ | term '^' term
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+ { $$ = oper2(OPOW,$1,$3); }
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+ | term IN VAR
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+ { $$ = oper2(ODEFINED,aryrefarg($3),$1); }
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+ | variable INCR
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+ {
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+ $$ = oper1(OPOSTINCR,$1);
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+ if ((ops[$1].ival & 255) == OFLD)
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+ lval_field = TRUE;
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+ else if ((ops[$1].ival & 255) == OVFLD)
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+ lval_field = TRUE;
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+ }
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+ | variable DECR
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+ {
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+ $$ = oper1(OPOSTDECR,$1);
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+ if ((ops[$1].ival & 255) == OFLD)
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+ lval_field = TRUE;
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+ else if ((ops[$1].ival & 255) == OVFLD)
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+ lval_field = TRUE;
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+ }
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+ | INCR variable
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+ {
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+ $$ = oper1(OPREINCR,$2);
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+ if ((ops[$2].ival & 255) == OFLD)
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+ lval_field = TRUE;
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+ else if ((ops[$2].ival & 255) == OVFLD)
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+ lval_field = TRUE;
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+ }
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+ | DECR variable
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+ {
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+ $$ = oper1(OPREDECR,$2);
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+ if ((ops[$2].ival & 255) == OFLD)
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+ lval_field = TRUE;
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+ else if ((ops[$2].ival & 255) == OVFLD)
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+ lval_field = TRUE;
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+ }
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+ | '-' term %prec UMINUS
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+ { $$ = oper1(OUMINUS,$2); }
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+ | '+' term %prec UMINUS
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+ { $$ = oper1(OUPLUS,$2); }
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+ | '(' cond ')'
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+ { $$ = oper1(OPAREN,$2); }
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+ | GETLINE
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+ { $$ = oper0(OGETLINE); }
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+ | GETLINE variable
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+ { $$ = oper1(OGETLINE,$2); }
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+ | GETLINE '<' expr
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+ { $$ = oper3(OGETLINE,Nullop,string("<",1),$3);
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+ if (ops[$3].ival != OSTR + (1<<8)) do_fancy_opens = TRUE; }
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+ | GETLINE variable '<' expr
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+ { $$ = oper3(OGETLINE,$2,string("<",1),$4);
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+ if (ops[$4].ival != OSTR + (1<<8)) do_fancy_opens = TRUE; }
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+ | term 'p' GETLINE
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+ { $$ = oper3(OGETLINE,Nullop,string("|",1),$1);
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+ if (ops[$1].ival != OSTR + (1<<8)) do_fancy_opens = TRUE; }
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+ | term 'p' GETLINE variable
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+ { $$ = oper3(OGETLINE,$4,string("|",1),$1);
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+ if (ops[$1].ival != OSTR + (1<<8)) do_fancy_opens = TRUE; }
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+ | FUN1
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+ { $$ = oper0($1); need_entire = do_chop = TRUE; }
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+ | FUN1 '(' ')'
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+ { $$ = oper1($1,Nullop); need_entire = do_chop = TRUE; }
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+ | FUN1 '(' expr ')'
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+ { $$ = oper1($1,$3); }
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+ | FUNN '(' expr_list ')'
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+ { $$ = oper1($1,$3); }
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+ | USERFUN '(' expr_list ')'
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+ { $$ = oper2(OUSERFUN,$1,$3); }
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+ | SPRINTF_NEW '(' expr_list ')'
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+ { $$ = oper1(OSPRINTF,$3); }
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+ | sprintf expr_list
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+ { $$ = oper1(OSPRINTF,$2); }
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+ | SUBSTR '(' expr ',' expr ',' expr ')'
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+ { $$ = oper3(OSUBSTR,$3,$5,$7); }
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+ | SUBSTR '(' expr ',' expr ')'
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+ { $$ = oper2(OSUBSTR,$3,$5); }
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+ | SPLIT '(' expr ',' VAR ',' expr ')'
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+ { $$ = oper3(OSPLIT,$3,aryrefarg(numary($5)),$7); }
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+ | SPLIT '(' expr ',' VAR ',' REGEX ')'
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+ { $$ = oper3(OSPLIT,$3,aryrefarg(numary($5)),oper1(OREGEX,$7));}
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+ | SPLIT '(' expr ',' VAR ')'
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+ { $$ = oper2(OSPLIT,$3,aryrefarg(numary($5))); }
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+ | INDEX '(' expr ',' expr ')'
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+ { $$ = oper2(OINDEX,$3,$5); }
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+ | MATCH '(' expr ',' REGEX ')'
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+ { $$ = oper2(OMATCH,$3,oper1(OREGEX,$5)); }
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+ | MATCH '(' expr ',' expr ')'
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+ { $$ = oper2(OMATCH,$3,$5); }
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+ | SUB '(' expr ',' expr ')'
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+ { $$ = oper2(OSUB,$3,$5); }
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+ | SUB '(' REGEX ',' expr ')'
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+ { $$ = oper2(OSUB,oper1(OREGEX,$3),$5); }
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+ | GSUB '(' expr ',' expr ')'
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+ { $$ = oper2(OGSUB,$3,$5); }
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+ | GSUB '(' REGEX ',' expr ')'
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+ { $$ = oper2(OGSUB,oper1(OREGEX,$3),$5); }
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+ | SUB '(' expr ',' expr ',' expr ')'
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+ { $$ = oper3(OSUB,$3,$5,$7); }
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+ | SUB '(' REGEX ',' expr ',' expr ')'
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+ { $$ = oper3(OSUB,oper1(OREGEX,$3),$5,$7); }
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+ | GSUB '(' expr ',' expr ',' expr ')'
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+ { $$ = oper3(OGSUB,$3,$5,$7); }
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+ | GSUB '(' REGEX ',' expr ',' expr ')'
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+ { $$ = oper3(OGSUB,oper1(OREGEX,$3),$5,$7); }
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+ ;
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+
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+variable: VAR
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+ { $$ = oper1(OVAR,$1); }
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+ | VAR '[' expr_list ']'
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+ { $$ = oper2(OVAR,aryrefarg($1),$3); }
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+ | FIELD
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+ { $$ = oper1(OFLD,$1); }
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+ | SVFIELD
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+ { $$ = oper1(OVFLD,oper1(OVAR,$1)); }
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+ | VFIELD term
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+ { $$ = oper1(OVFLD,$2); }
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+ ;
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+
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+expr_list
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+ : expr
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+ | clist
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+ | /* NULL */
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+ { $$ = Nullop; }
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+ ;
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+
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+clist : expr ',' maybe expr
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+ { $$ = oper3(OCOMMA,$1,$3,$4); }
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+ | clist ',' maybe expr
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+ { $$ = oper3(OCOMMA,$1,$3,$4); }
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+ | '(' clist ')' /* these parens are invisible */
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+ { $$ = $2; }
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+ ;
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+
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+junk : junk hunksep
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+ { $$ = oper2(OJUNK,$1,$2); }
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+ | /* NULL */
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+ { $$ = Nullop; }
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+ ;
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+
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+hunksep : ';'
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+ { $$ = oper2(OJUNK,oper0(OSEMICOLON),oper0(ONEWLINE)); }
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+ | SEMINEW
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+ { $$ = oper2(OJUNK,oper0(OSEMICOLON),oper0(ONEWLINE)); }
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+ | NEWLINE
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+ { $$ = oper0(ONEWLINE); }
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+ | COMMENT
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+ { $$ = oper1(OCOMMENT,$1); }
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+ ;
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+
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+maybe : maybe nlstuff
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+ { $$ = oper2(OJUNK,$1,$2); }
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+ | /* NULL */
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+ { $$ = Nullop; }
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+ ;
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+
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+nlstuff : NEWLINE
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+ { $$ = oper0(ONEWLINE); }
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+ | COMMENT
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+ { $$ = oper1(OCOMMENT,$1); }
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+ ;
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+
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+separator
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+ : ';' maybe
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+ { $$ = oper2(OJUNK,oper0(OSEMICOLON),$2); }
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+ | SEMINEW maybe
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+ { $$ = oper2(OJUNK,oper0(OSNEWLINE),$2); }
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+ | NEWLINE maybe
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+ { $$ = oper2(OJUNK,oper0(OSNEWLINE),$2); }
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+ | COMMENT maybe
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+ { $$ = oper2(OJUNK,oper1(OSCOMMENT,$1),$2); }
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+ ;
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+
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+states : states statement
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+ { $$ = oper2(OSTATES,$1,$2); }
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+ | /* NULL */
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+ { $$ = Nullop; }
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+ ;
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+
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+statement
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+ : simple separator maybe
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+ { $$ = oper2(OJUNK,oper2(OSTATE,$1,$2),$3); }
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+ | ';' maybe
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+ { $$ = oper2(OSTATE,Nullop,oper2(OJUNK,oper0(OSEMICOLON),$2)); }
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+ | SEMINEW maybe
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+ { $$ = oper2(OSTATE,Nullop,oper2(OJUNK,oper0(OSNEWLINE),$2)); }
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+ | compound
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+ ;
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+
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+simpnull: simple
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+ | /* NULL */
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+ { $$ = Nullop; }
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+ ;
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+
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+simple
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+ : expr
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+ | PRINT expr_list redir expr
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+ { $$ = oper3(OPRINT,$2,$3,$4);
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+ do_opens = TRUE;
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+ saw_ORS = saw_OFS = TRUE;
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+ if (!$2) need_entire = TRUE;
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+ if (ops[$4].ival != OSTR + (1<<8)) do_fancy_opens = TRUE; }
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+ | PRINT expr_list
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+ { $$ = oper1(OPRINT,$2);
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+ if (!$2) need_entire = TRUE;
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+ saw_ORS = saw_OFS = TRUE;
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+ }
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+ | PRINTF expr_list redir expr
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+ { $$ = oper3(OPRINTF,$2,$3,$4);
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+ do_opens = TRUE;
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+ if (!$2) need_entire = TRUE;
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+ if (ops[$4].ival != OSTR + (1<<8)) do_fancy_opens = TRUE; }
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+ | PRINTF expr_list
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+ { $$ = oper1(OPRINTF,$2);
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+ if (!$2) need_entire = TRUE;
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+ }
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+ | BREAK
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+ { $$ = oper0(OBREAK); }
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+ | NEXT
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+ { $$ = oper0(ONEXT); }
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+ | EXIT
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+ { $$ = oper0(OEXIT); }
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+ | EXIT expr
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+ { $$ = oper1(OEXIT,$2); }
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+ | CONTINUE
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+ { $$ = oper0(OCONTINUE); }
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+ | RET
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+ { $$ = oper0(ORETURN); }
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+ | RET expr
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+ { $$ = oper1(ORETURN,$2); }
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+ | DELETE VAR '[' expr_list ']'
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+ { $$ = oper2(ODELETE,aryrefarg($2),$4); }
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+ ;
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+
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+redir : '>' %prec FIELD
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+ { $$ = oper1(OREDIR,string(">",1)); }
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+ | GRGR
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+ { $$ = oper1(OREDIR,string(">>",2)); }
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+ | '|'
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+ { $$ = oper1(OREDIR,string("|",1)); }
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+ ;
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+
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+compound
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+ : IF '(' cond ')' maybe statement
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+ { $$ = oper2(OIF,$3,bl($6,$5)); }
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+ | IF '(' cond ')' maybe statement ELSE maybe statement
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+ { $$ = oper3(OIF,$3,bl($6,$5),bl($9,$8)); }
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+ | WHILE '(' cond ')' maybe statement
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+ { $$ = oper2(OWHILE,$3,bl($6,$5)); }
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+ | DO maybe statement WHILE '(' cond ')'
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+ { $$ = oper2(ODO,bl($3,$2),$6); }
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+ | FOR '(' simpnull ';' cond ';' simpnull ')' maybe statement
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+ { $$ = oper4(OFOR,$3,$5,$7,bl($10,$9)); }
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+ | FOR '(' simpnull ';' ';' simpnull ')' maybe statement
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+ { $$ = oper4(OFOR,$3,string("",0),$6,bl($9,$8)); }
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+ | FOR '(' expr ')' maybe statement
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+ { $$ = oper2(OFORIN,$3,bl($6,$5)); }
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+ | '{' maybe states '}' maybe
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+ { $$ = oper3(OBLOCK,oper2(OJUNK,$2,$3),Nullop,$5); }
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+ ;
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+
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+%%
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+
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+int yyparse (void);
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+
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+#include "a2py.c"
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