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 */
53extern Token CurTok; /* Current input token incl. attributes */
54extern int ForcedEnd; /* Force end of assembly */
55
56
57
58/*****************************************************************************/
59/* Code */
60/*****************************************************************************/
61
62
63
64int IsIdChar (int C);
65/* Return true if the character is a valid character for an identifier */
66
67int IsIdStart (int C);
68/* Return true if the character may start an identifier */
69
70int 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
75void NewInputData (char* Text, int Malloced);
76/* Add a chunk of input data to the input stream */
77
78void LocaseSVal (void);
79/* Make SVal lower case */
80
81void UpcaseSVal (void);
82/* Make SVal upper case */
83
84void NextRawTok (void);
85/* Read the next raw token from the input stream */
86
87int 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
94unsigned 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
100void InitScanner (const char* InFile);
101/* Initialize the scanner, open the given input file */
102
103void DoneScanner (void);
104/* Release scanner resources */
105
106
107
108/* End of scanner.h */
109
110#endif
111