/usr/include/ComTerp/boolfunc.h is in ivtools-dev 1.2.11a1-11.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2001 Scott E. Johnston
* Copyright (c) 2000 IET Inc.
* Copyright (c) 1994-1997,1999 Vectaport Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and
* its documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the names of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. The copyright holders make
* no representations about the suitability of this software for any purpose.
* It is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
/*
* This is a collection of boolean operators. They inherit the
* C-like promotion mechanism of NumFunc.
*/
#if !defined(_boolfunc_h)
#define _boolfunc_h
#include <ComTerp/numfunc.h>
//: && (and) operator.
class AndFunc : public NumFunc {
public:
AndFunc(ComTerp*, boolean pre=false);
virtual void execute();
virtual boolean post_eval() { return !_pre; }
virtual const char* docstring() {
return "&& is the and operator"; }
protected:
boolean _pre;
};
//: || (or) operator.
class OrFunc : public NumFunc {
public:
OrFunc(ComTerp*, boolean pre=false);
virtual void execute();
virtual boolean post_eval() { return !_pre; }
virtual const char* docstring() {
return "|| is the or operator"; }
protected:
boolean _pre;
};
//: ! (negate) operator.
class NegFunc : public NumFunc {
public:
NegFunc(ComTerp*);
virtual void execute();
virtual const char* docstring() {
return "! is the negate operator"; }
};
//: == (equality) operator.
// also useful for partial string comparison with :n keyword, i.e.
// eq("string1" "string2" :n 6) returns true.
// also useful for symbol comparison with :sym keyword.
class EqualFunc : public NumFunc {
public:
EqualFunc(ComTerp*);
virtual void execute();
virtual const char* docstring() {
return "== is the equal operator\nbool=eq(str1 str2 :n len) -- partial string comparison\nbool=eq(sym1 sym2 :sym) -- symbol comparison"; }
};
//: != (non-equality) operator.
// also useful for partial string comparison with :n keyword.
// neq("string1" "string2" :n 6) returns false.
// also useful for symbol comparison with :sym keyword.
class NotEqualFunc : public NumFunc {
public:
NotEqualFunc(ComTerp*);
virtual void execute();
virtual const char* docstring() {
return "!= is the not-equal operator\nbool=neq(str1 str2 :n len) -- partial string comparison\nbool=neq(sym1 sym2 :sym) -- symbol comparison"; }
};
//: > (greater than) operator.
// also useful for partial string comparison with :n keyword, i.e.
// gt("string1" "string2" :n 6) returns false.
// also useful for symbol comparison with :sym keyword.
class GreaterThanFunc : public NumFunc {
public:
GreaterThanFunc(ComTerp*);
virtual void execute();
virtual const char* docstring() {
return "> is the greater-than operator\nbool=gt(str1 str2 :n len) -- partial string comparison\nbool=gt(sym1 sym2 :sym) -- symbol comparison"; }
};
//: >= (greater than or equal) operator.
// also useful for partial string comparison with :n keyword.
// also useful for symbol comparison with :sym keyword.
class GreaterThanOrEqualFunc : public NumFunc {
public:
GreaterThanOrEqualFunc(ComTerp*);
virtual void execute();
virtual const char* docstring() {
return ">= is the greater-than-or-equal operator\nbool=gt_or_eq(str1 str2 :n len) -- partial string comparison\nbool=gt_or_eq(sym1 sym2 :sym) -- symbol comparison"; }
};
//: < (less than) operator.
// also useful for partial string comparison with :n keyword, i.e.
// lt("string2" "string1" :n 6) returns false.
// also useful for symbol comparison with :sym keyword.
class LessThanFunc : public NumFunc {
public:
LessThanFunc(ComTerp*);
virtual void execute();
virtual const char* docstring() {
return "< is the less-than operator\nbool=lt(str1 str2 :n len) -- partial string comparison\nbool=lt(sym1 sym2 :sym) -- symbol comparison"; }
};
//: <= (less than or equal) operator.
class LessThanOrEqualFunc : public NumFunc {
// also useful for partial string comparison with :n keyword.
// also useful for symbol comparison with :sym keyword.
public:
LessThanOrEqualFunc(ComTerp*);
virtual void execute();
virtual const char* docstring() {
return "<= is the less-than-or-equal operator\nbool=lt_or_eq(str1 str2 :n len) -- partial string comparison\nbool=lt_or_eq(sym1 sym2 :sym) -- symbol comparison"; }
};
//: returns true
class TrueFunc : public NumFunc {
// Accepts any arguments and returns true
public:
TrueFunc(ComTerp*);
virtual void execute();
virtual const char* docstring() {
return "true([...]) -- accepts any arguments and returns true"; }
};
//: returns false
class FalseFunc : public NumFunc {
// Accepts any arguments and returns false
public:
FalseFunc(ComTerp*);
virtual void execute();
virtual const char* docstring() {
return "false([...]) -- accepts any arguments and returns false"; }
};
#endif /* !defined(_boolfunc_h) */
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