1 /*****************************************************************************/
5 /* Macros 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 /*****************************************************************************/
41 /*****************************************************************************/
43 /*****************************************************************************/
51 /*****************************************************************************/
53 /*****************************************************************************/
58 #define MAC_STYLE_CLASSIC 0
59 #define MAC_STYLE_DEFINE 1
61 /* Macro as an opaque data type */
63 typedef struct Macro Macro;
67 /*****************************************************************************/
69 /*****************************************************************************/
73 void MacDef (unsigned Style);
74 /* Parse a macro definition */
76 void MacUndef (const struct StrBuf* Name, unsigned char Style);
77 /* Undefine the macro with the given name and style. A style mismatch is
78 * treated as if the macro didn't exist.
81 void MacExpandStart (Macro* M);
82 /* Start expanding a macro */
85 /* Abort the current macro expansion */
87 Macro* FindMacro (const struct StrBuf* Name);
88 /* Try to find the macro with the given name and return it. If no macro with
89 * this name was found, return NULL.
92 Macro* FindDefine (const struct StrBuf* Name);
93 /* Try to find the define style macro with the given name and return it. If no
94 * such macro was found, return NULL.
97 int InMacExpansion (void);
98 /* Return true if we're currently expanding a macro */
100 void DisableDefineStyleMacros (void);
101 /* Disable define style macros until EnableDefineStyleMacros is called */
103 void EnableDefineStyleMacros (void);
104 /* Re-enable define style macros previously disabled with
105 * DisableDefineStyleMacros.