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/*
* Raw preprocessor (preforms NO preprocessing)
*
* Copyright (C) 2001-2007 Peter Johnson
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND OTHER CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR OTHER CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <util.h>
#include <libyasm.h>
#define BSIZE 512
typedef struct yasm_preproc_raw {
yasm_preproc_base preproc; /* base structure */
FILE *in;
yasm_linemap *cur_lm;
yasm_errwarns *errwarns;
} yasm_preproc_raw;
yasm_preproc_module yasm_raw_LTX_preproc;
static yasm_preproc *
raw_preproc_create(const char *in_filename, yasm_symtab *symtab,
yasm_linemap *lm, yasm_errwarns *errwarns)
{
FILE *f;
yasm_preproc_raw *preproc_raw = yasm_xmalloc(sizeof(yasm_preproc_raw));
if (strcmp(in_filename, "-") != 0) {
f = fopen(in_filename, "r");
if (!f)
yasm__fatal( N_("Could not open input file") );
}
else
f = stdin;
preproc_raw->preproc.module = &yasm_raw_LTX_preproc;
preproc_raw->in = f;
preproc_raw->cur_lm = lm;
preproc_raw->errwarns = errwarns;
return (yasm_preproc *)preproc_raw;
}
static void
raw_preproc_destroy(yasm_preproc *preproc)
{
yasm_xfree(preproc);
}
static char *
raw_preproc_get_line(yasm_preproc *preproc)
{
yasm_preproc_raw *preproc_raw = (yasm_preproc_raw *)preproc;
int bufsize = BSIZE;
char *buf = yasm_xmalloc((size_t)bufsize);
char *p;
/* Loop to ensure entire line is read (don't want to limit line length). */
p = buf;
for (;;) {
if (!fgets(p, bufsize-(p-buf), preproc_raw->in)) {
if (ferror(preproc_raw->in)) {
yasm_error_set(YASM_ERROR_IO,
N_("error when reading from file"));
yasm_errwarn_propagate(preproc_raw->errwarns,
yasm_linemap_get_current(preproc_raw->cur_lm));
}
break;
}
p += strlen(p);
if (p > buf && p[-1] == '\n')
break;
if ((p-buf)+1 >= bufsize) {
/* Increase size of buffer */
char *oldbuf = buf;
bufsize *= 2;
buf = yasm_xrealloc(buf, (size_t)bufsize);
p = buf + (p-oldbuf);
}
}
if (p == buf) {
/* No data; must be at EOF */
yasm_xfree(buf);
return NULL;
}
/* Strip the line ending */
buf[strcspn(buf, "\r\n")] = '\0';
return buf;
}
static size_t
raw_preproc_get_included_file(yasm_preproc *preproc, char *buf,
size_t max_size)
{
/* no included files */
return 0;
}
static void
raw_preproc_add_include_file(yasm_preproc *preproc, const char *filename)
{
/* no pre-include files */
}
static void
raw_preproc_predefine_macro(yasm_preproc *preproc, const char *macronameval)
{
/* no pre-defining macros */
}
static void
raw_preproc_undefine_macro(yasm_preproc *preproc, const char *macroname)
{
/* no undefining macros */
}
static void
raw_preproc_define_builtin(yasm_preproc *preproc, const char *macronameval)
{
/* no builtin defines */
}
static void
raw_preproc_add_standard(yasm_preproc *preproc, const char **macros)
{
/* no standard macros */
}
/* Define preproc structure -- see preproc.h for details */
yasm_preproc_module yasm_raw_LTX_preproc = {
"Disable preprocessing",
"raw",
raw_preproc_create,
raw_preproc_destroy,
raw_preproc_get_line,
raw_preproc_get_included_file,
raw_preproc_add_include_file,
raw_preproc_predefine_macro,
raw_preproc_undefine_macro,
raw_preproc_define_builtin,
raw_preproc_add_standard
};
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