1 | /*****************************************************************************/ |
2 | /* */ |
3 | /* scanner.h */ |
4 | /* */ |
5 | /* The scanner for the ca65 macroassembler */ |
6 | /* */ |
7 | /* */ |
8 | /* */ |
9 | /* (C) 1998-2011, 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 SCANNER_H |
37 | #define SCANNER_H |
38 | |
39 | |
40 | |
41 | /* ca65 */ |
42 | #include "token.h" |
43 | |
44 | |
45 | |
46 | /*****************************************************************************/ |
47 | /* Data */ |
48 | /*****************************************************************************/ |
49 | |
50 | |
51 | |
52 | /* Scanner variables */ |
53 | extern Token CurTok; /* Current input token incl. attributes */ |
54 | extern int ForcedEnd; /* Force end of assembly */ |
55 | |
56 | |
57 | |
58 | /*****************************************************************************/ |
59 | /* Code */ |
60 | /*****************************************************************************/ |
61 | |
62 | |
63 | |
64 | int IsIdChar (int C); |
65 | /* Return true if the character is a valid character for an identifier */ |
66 | |
67 | int IsIdStart (int C); |
68 | /* Return true if the character may start an identifier */ |
69 | |
70 | int NewInputFile (const char* Name); |
71 | /* Open a new input file. Returns true if the file could be successfully opened |
72 | ** and false otherwise. |
73 | */ |
74 | |
75 | void NewInputData (char* Text, int Malloced); |
76 | /* Add a chunk of input data to the input stream */ |
77 | |
78 | void LocaseSVal (void); |
79 | /* Make SVal lower case */ |
80 | |
81 | void UpcaseSVal (void); |
82 | /* Make SVal upper case */ |
83 | |
84 | void (void); |
85 | /* Read the next raw token from the input stream */ |
86 | |
87 | int GetSubKey (const char* const* Keys, unsigned Count); |
88 | /* Search for a subkey in a table of keywords. The current token must be an |
89 | ** identifier and all keys must be in upper case. The identifier will be |
90 | ** uppercased in the process. The function returns the index of the keyword, |
91 | ** or -1 if the keyword was not found. |
92 | */ |
93 | |
94 | unsigned char ParseAddrSize (void); |
95 | /* Check if the next token is a keyword that denotes an address size specifier. |
96 | ** If so, return the corresponding address size constant, otherwise output an |
97 | ** error message and return ADDR_SIZE_DEFAULT. |
98 | */ |
99 | |
100 | void InitScanner (const char* InFile); |
101 | /* Initialize the scanner, open the given input file */ |
102 | |
103 | void DoneScanner (void); |
104 | /* Release scanner resources */ |
105 | |
106 | |
107 | |
108 | /* End of scanner.h */ |
109 | |
110 | #endif |
111 | |