sqwarmed/sdk_src/public/tier1/tokenset.h

123 lines
2.6 KiB
C
Raw Normal View History

2024-08-29 19:18:30 -04:00
//========= Copyright <20> 2008, Valve Corporation, All rights reserved. ============//
#ifndef __TOKENSET_H
#define __TOKENSET_H
#ifdef _WIN32
#pragma once
#endif
//-----------------------------------------------------------------------------
//
// This class is a handy way to match a series of values to stings and vice
// versa. It should be initalized as static like an array, for example:
//
// const tokenset_t<int> tokens[] = {
// { "token1", 1 },
// { "token2", 2 },
// { "token3", 3 },
// { NULL, -1 }
// };
//
// Then you can call the operators on it by using:
//
// int t = tokens->GetToken( s );
//
// If s is "token1" it returns 1, etc. Invalid string returns the last NULL
// value. GetNameByToken() returns "__UNKNOWN__" when passed a mismatched
// token. GetNameByToken() returns szMismatchResult when passed a mismatched
// token and a string to return in case of mismatch.
//
//-----------------------------------------------------------------------------
template <class _T>
struct tokenset_t
{
const char *name;
_T token;
_T GetToken( const char *s ) const;
_T GetTokenI( const char *s ) const;
const char *GetNameByToken( _T token ) const;
const char *GetNameByToken( _T token, const char *szMismatchResult ) const;
};
template <class _T>
inline _T tokenset_t< _T >::GetToken( const char *s ) const
{
const tokenset_t< _T > *c;
for ( c = this; c->name; ++c )
{
if ( !s )
{
continue; // Loop to the last NULL value
}
if ( Q_strcmp( s, c->name ) == 0 )
{
return c->token;
}
}
return c->token; // c points to the last NULL value
}
template <class _T>
inline _T tokenset_t< _T >::GetTokenI( const char *s ) const
{
const tokenset_t< _T > *c;
for ( c = this; c->name; ++c )
{
if ( !s )
{
continue; // Loop to the last NULL value
}
if ( Q_stricmp( s, c->name ) == 0 )
{
return c->token;
}
}
return c->token; // c points to the last NULL value
}
template <class _T>
inline const char *tokenset_t< _T >::GetNameByToken( _T token ) const
{
static const char *unknown = "__UNKNOWN__";
const tokenset_t< _T > *c;
for ( c = this; c->name; ++c )
{
if ( c->token == token )
{
return c->name;
}
}
return unknown;
}
template <class _T>
inline const char *tokenset_t< _T >::GetNameByToken( _T token, char const *szMismatchResult ) const
{
const tokenset_t< _T > *c;
for ( c = this; c->name; ++c )
{
if ( c->token == token )
{
return c->name;
}
}
return szMismatchResult;
}
#endif //__TOKENSET_H