blob: 0c639e1a9aaee1d93c81e7da8597a5757082a457 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: Shared code for parsing / searching for characters in a string
// using lookup tables
//
// $Workfile: $
// $Date: $
// $NoKeywords: $
//===========================================================================//
#ifndef CHARACTERSET_H
#define CHARACTERSET_H
#ifdef _WIN32
#pragma once
#endif
struct characterset_t
{
char set[256];
};
// This is essentially a strpbrk() using a precalculated lookup table
//-----------------------------------------------------------------------------
// Purpose: builds a simple lookup table of a group of important characters
// Input : *pSetBuffer - pointer to the buffer for the group
// *pSetString - list of characters to flag
//-----------------------------------------------------------------------------
extern void CharacterSetBuild( characterset_t *pSetBuffer, const char *pSetString );
//-----------------------------------------------------------------------------
// Purpose:
// Input : *pSetBuffer - pre-build group buffer
// character - character to lookup
// Output : int - 1 if the character was in the set
//-----------------------------------------------------------------------------
#define IN_CHARACTERSET( SetBuffer, character ) ((SetBuffer).set[ (unsigned char) (character) ])
#endif // CHARACTERSET_H
|