substablexpr(3) - Linux man page

Name

substablexpr - substitutes a given atom by an expression.

Synopsys

#include "abl101.h"
chain_list ∗substablexpr( Expr1, Name, Expr2 )
  chain_list ∗Expr1;
  char       ∗Name;
  chain_list ∗Expr2;

Parameters

Expr1 First expression. Name Atom name. Expr Second expression.

Description

substablexpr substitutes Atom in Expr1 by Expr2. The expression pointer Expr1 MUSTN'T be used after the call to this function.

Return Value

substablexpr returns the modified expression.

Example

#include "abl101.h"
  chain_list ∗Expr1;
  chain_list ∗Expr2;
  Expr1 = createablbinexpr( ABL_OR,
                            createablatom( "a" ),
                            createablatom( "b" ) );
  Expr2 = createablbinexpr( ABL_AND,
                            createablatom( "c" ),
                            createablatom( "d" ) );
  Expr1 = substablexpr( Expr1, "a", Expr2 );
  /* displays ((c and d) or b) */
  viewablexpr( Expr1, ABL_VIEW_VHDL );