1 | /*****************************************************************************/ |
2 | /* */ |
3 | /* fileid.h */ |
4 | /* */ |
5 | /* Determine the id of a file type by extension */ |
6 | /* */ |
7 | /* */ |
8 | /* */ |
9 | /* (C) 2003-2012, Ullrich von Bassewitz */ |
10 | /* Roemerstrasse 52 */ |
11 | /* D-70794 Filderstadt */ |
12 | /* EMail: uz@cc65.org */ |
13 | /* */ |
14 | /* */ |
15 | /* This software is provided 'as-is', without any expressed or implied */ |
16 | /* warranty. In no event will the authors be held liable for any damages */ |
17 | /* arising from the use of this software. */ |
18 | /* */ |
19 | /* Permission is granted to anyone to use this software for any purpose, */ |
20 | /* including commercial applications, and to alter it and redistribute it */ |
21 | /* freely, subject to the following restrictions: */ |
22 | /* */ |
23 | /* 1. The origin of this software must not be misrepresented; you must not */ |
24 | /* claim that you wrote the original software. If you use this software */ |
25 | /* in a product, an acknowledgment in the product documentation would be */ |
26 | /* appreciated but is not required. */ |
27 | /* 2. Altered source versions must be plainly marked as such, and must not */ |
28 | /* be misrepresented as being the original software. */ |
29 | /* 3. This notice may not be removed or altered from any source */ |
30 | /* distribution. */ |
31 | /* */ |
32 | /*****************************************************************************/ |
33 | |
34 | |
35 | |
36 | #ifndef FILEID_H |
37 | #define FILEID_H |
38 | |
39 | |
40 | |
41 | /*****************************************************************************/ |
42 | /* Data */ |
43 | /*****************************************************************************/ |
44 | |
45 | |
46 | |
47 | /* An entry for a table that maps extensions to some sort of identifier. Such |
48 | ** a table - sorted alphabetically - is passed to GetFileId. |
49 | */ |
50 | typedef struct FileId FileId; |
51 | struct FileId { |
52 | const char Ext[4]; |
53 | int Id; |
54 | }; |
55 | |
56 | |
57 | |
58 | /*****************************************************************************/ |
59 | /* Code */ |
60 | /*****************************************************************************/ |
61 | |
62 | |
63 | |
64 | int CompareFileId (const void* Key, const void* Id); |
65 | /* Compare function used when calling bsearch with a table of FileIds */ |
66 | |
67 | const FileId* GetFileId (const char* Name, const FileId* Table, unsigned Count); |
68 | /* Determine the id of the given file by looking at file extension of the name. |
69 | ** The table passed to the function must be sorted alphabetically. If the |
70 | ** extension is found, a pointer to the matching table entry is returned. If |
71 | ** no matching table entry was found, the function returns NULL. |
72 | */ |
73 | |
74 | |
75 | |
76 | /* End of fileid.h */ |
77 | |
78 | #endif |
79 | |