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Added a more generic way to push sources that deliver a token stream

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independent of the actual input from the file. Change macro handling
to use the new input stack.
Fixed an error in FreeIf: If an unexpected .ENDIF was reached, the
assembler started an endless loop printing error messages.


git-svn-id: svn://svn.cc65.org/cc65/trunk@24 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
cuz
2000-06-03 11:15:11 +00:00
parent 5e561a0f40
commit 522c7e8c46
21 changed files with 880 additions and 300 deletions
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71
src/ca65/istack.h Normal file
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/*****************************************************************************/
/* */
/* istack.h */
/* */
/* Input stack for the scanner */
/* */
/* */
/* */
/* (C) 2000 Ullrich von Bassewitz */
/* Wacholderweg 14 */
/* D-70597 Stuttgart */
/* EMail: uz@musoftware.de */
/* */
/* */
/* This software is provided 'as-is', without any expressed or implied */
/* warranty. In no event will the authors be held liable for any damages */
/* arising from the use of this software. */
/* */
/* Permission is granted to anyone to use this software for any purpose, */
/* including commercial applications, and to alter it and redistribute it */
/* freely, subject to the following restrictions: */
/* */
/* 1. The origin of this software must not be misrepresented; you must not */
/* claim that you wrote the original software. If you use this software */
/* in a product, an acknowledgment in the product documentation would be */
/* appreciated but is not required. */
/* 2. Altered source versions must be plainly marked as such, and must not */
/* be misrepresented as being the original software. */
/* 3. This notice may not be removed or altered from any source */
/* distribution. */
/* */
/*****************************************************************************/
#ifndef ISTACK_H
#define ISTACK_H
/*****************************************************************************/
/* Code */
/*****************************************************************************/
void PushInput (int (*Func) (void*), void* Data, const char* Desc);
/* Push an input function onto the input stack */
void PopInput (void);
/* Pop the current input function from the input stack */
int InputFromStack (void);
/* Try to get input from the input stack. Return true if we had such input,
* return false otherwise.
*/
void CheckInputStack (void);
/* Called from the scanner before closing an input file. Will check for any
* stuff on the input stack.
*/
/* End of istack.h */
#endif