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cc65/src/ca65/macpack.c
uz 30f88d2646 Avoid spurious subsequent errors if an include file wasn't found.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3908 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-01-18 15:07:55 +00:00

174 lines
5.8 KiB
C

/*****************************************************************************/
/* */
/* macpack.c */
/* */
/* Predefined macro packages for the ca65 macroassembler */
/* */
/* */
/* */
/* (C) 1998-2008, Ullrich von Bassewitz */
/* Roemerstrasse 52 */
/* D-70794 Filderstadt */
/* EMail: uz@cc65.org */
/* */
/* */
/* 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. */
/* */
/*****************************************************************************/
/* common */
#include "check.h"
#include "strbuf.h"
#include "strutil.h"
/* ca65 */
#include "error.h"
#include "scanner.h"
#include "macpack.h"
/*****************************************************************************/
/* Data */
/*****************************************************************************/
/* Predefined macro packages converted into C strings by a perl script */
#include "atari.inc"
#include "cbm.inc"
#include "cpu.inc"
#include "generic.inc"
#include "longbranch.inc"
/* Table with pointers to the different packages */
static struct {
const char* Name;
char* Package;
} MacPackages[MAC_COUNT] = {
/* Packages sorted by id */
{ "atari", MacAtari },
{ "cbm", MacCBM },
{ "cpu", MacCPU },
{ "generic", MacGeneric },
{ "longbranch", MacLongBranch },
};
/* Directory that contains standard macro package files */
static StrBuf MacPackDir = STATIC_STRBUF_INITIALIZER;
/*****************************************************************************/
/* Code */
/*****************************************************************************/
int MacPackFind (const StrBuf* Name)
/* Find a macro package by name. The function will either return the id or
* -1 if the package name was not found.
*/
{
int I;
for (I = 0; I < MAC_COUNT; ++I) {
if (SB_CompareStr (Name, MacPackages[I].Name) == 0) {
/* Found */
return I;
}
}
/* Not found */
return -1;
}
int MacPackInsert (int Id)
/* Insert the macro package with the given id in the input stream. Returns
* true if the macro package was found and successfully inserted. Returns
* false otherwise.
*/
{
int RetCode;
/* Check the parameter */
CHECK (Id >= 0 && Id < MAC_COUNT);
/* If we have a macro package directory given, load a file from the
* directory, otherwise use the builtin stuff.
*/
if (SB_IsEmpty (&MacPackDir)) {
/* Insert the builtin package */
NewInputData (MacPackages[Id].Package, 0);
/* Always successful */
RetCode = 1;
} else {
StrBuf Filename = AUTO_STRBUF_INITIALIZER;
/* Build the complete file name */
SB_Copy (&Filename, &MacPackDir);
SB_AppendStr (&Filename, MacPackages[Id].Name);
SB_AppendStr (&Filename, ".mac");
SB_Terminate (&Filename);
/* Open the macro package as include file */
RetCode = NewInputFile (SB_GetConstBuf (&Filename));
/* Destroy the contents of Filename */
SB_Done (&Filename);
}
/* Return the success code */
return RetCode;
}
void MacPackSetDir (const StrBuf* Dir)
/* Set a directory where files for macro packages can be found. Standard is
* to use the builtin packages. For debugging macro packages, external files
* can be used.
*/
{
/* Copy the directory name to the buffer */
SB_Copy (&MacPackDir, Dir);
/* Make sure that the last character is a path delimiter */
if (SB_NotEmpty (&MacPackDir)) {
char C = SB_LookAtLast (&MacPackDir);
if (C != '\\' && C != '/') {
SB_AppendChar (&MacPackDir, '/');
}
}
/* Terminate the buffer so it's usable as a C string */
SB_Terminate (&MacPackDir);
}