1 /*****************************************************************************/
5 /* The scanner for the ca65 macroassembler */
9 /* (C) 1998-2011, Ullrich von Bassewitz */
10 /* Roemerstrasse 52 */
11 /* D-70794 Filderstadt */
12 /* EMail: uz@cc65.org */
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. */
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: */
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 */
32 /*****************************************************************************/
46 /*****************************************************************************/
48 /*****************************************************************************/
52 /* Scanner variables */
53 extern Token CurTok; /* Current input token incl. attributes */
54 extern int ForcedEnd; /* Force end of assembly */
58 /*****************************************************************************/
60 /*****************************************************************************/
65 /* Return true if the character is a valid character for an identifier */
67 int IsIdStart (int C);
68 /* Return true if the character may start an identifier */
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.
75 void NewInputData (char* Text, int Malloced);
76 /* Add a chunk of input data to the input stream */
78 void LocaseSVal (void);
79 /* Make SVal lower case */
81 void UpcaseSVal (void);
82 /* Make SVal upper case */
84 void NextRawTok (void);
85 /* Read the next raw token from the input stream */
87 int GetSubKey (const char** 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.
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.
100 void InitScanner (const char* InFile);
101 /* Initialize the scanner, open the given input file */
103 void DoneScanner (void);
104 /* Release scanner resources */
108 /* End of scanner.h */