#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <libc.h>
#ifdef NeXT_MOD
#include <sys/file.h>
#include <sys/param.h>
#endif
#include "as.h"
#include "read.h"
#include "input-file.h"
#include "input-scrub.h"
#include "app.h"
#include "xmalloc.h"
#include "messages.h"
#define BEFORE_STRING ("\n")
#define AFTER_STRING ("\0")
#define BEFORE_SIZE (1)
#define AFTER_SIZE (1)
static char * buffer_start;
static char * partial_where;
static int partial_size;
static char save_source [AFTER_SIZE];
static int buffer_length;
int doing_include = FALSE;
char *physical_input_file = NULL;
char *logical_input_file = NULL;
char *layout_file = NULL;
char *input_dir = NULL;
line_numberT physical_input_line = 0;
line_numberT logical_input_line = 0;
line_numberT layout_line = 0;
void
input_scrub_begin(
void)
{
know( strlen(BEFORE_STRING) == BEFORE_SIZE );
know( strlen(AFTER_STRING) + 1 == AFTER_SIZE );
input_file_begin ();
buffer_length = input_file_buffer_size ();
buffer_start = xmalloc ((size_t)(BEFORE_SIZE + buffer_length + buffer_length + AFTER_SIZE));
memcpy(buffer_start, BEFORE_STRING, (int)BEFORE_SIZE);
logical_input_line = 0;
logical_input_file = (char *)NULL;
physical_input_file = NULL;
do_scrub_begin();
}
void
input_scrub_end(
void)
{
input_file_end ();
}
char *
input_scrub_new_file(
char *filename)
{
input_file_open (filename, !flagseen['f']);
physical_input_file = filename[0] ? filename : "{standard input}";
physical_input_line = 0;
if (filename[0])
{
char *p;
int len;
p = strrchr(filename, '/');
if (p != NULL && p[1] != '\0')
{
len = p - filename + 1;
input_dir = xmalloc(len + 1);
strncpy(input_dir, filename, len);
}
}
partial_size = 0;
return (buffer_start + BEFORE_SIZE);
}
char *
input_scrub_next_buffer(
char **bufp)
{
register char * limit;
int give_next_size;
if (partial_size)
{
memcpy(buffer_start + BEFORE_SIZE, partial_where, (int)partial_size);
memcpy(buffer_start + BEFORE_SIZE, save_source, (int)AFTER_SIZE);
}
get_more:
limit = input_file_give_next_buffer(
buffer_start + BEFORE_SIZE + partial_size,
&give_next_size);
if (limit)
{
register char * p;
for (p = limit; * -- p != '\n'; )
{
}
++ p;
if (p <= buffer_start + BEFORE_SIZE)
{
int new;
new = limit - (buffer_start + BEFORE_SIZE + partial_size);
partial_size += new;
if((BEFORE_SIZE + buffer_length * 2) - (limit - buffer_start) >
give_next_size)
goto get_more;
buffer_length = buffer_length * 2;
buffer_start = xrealloc (buffer_start,
(size_t)(BEFORE_SIZE + buffer_length +
buffer_length + AFTER_SIZE));
*bufp = buffer_start + BEFORE_SIZE;
goto get_more;
}
partial_where = p;
partial_size = limit - p;
memcpy(save_source, partial_where, (int)AFTER_SIZE);
memcpy(partial_where, AFTER_STRING, (int)AFTER_SIZE);
}
else
{
partial_where = 0;
if (partial_size > 0)
{
as_warn( "Partial line at end of file ignored" );
}
}
return (partial_where);
}
int
seen_at_least_1_file(
void)
{
return (physical_input_file != NULL);
}
void
bump_line_counters(
void)
{
++ physical_input_line;
++ logical_input_line;
}
void
new_logical_line(
char *fname,
int line_number)
{
if ( fname )
{
logical_input_file = fname;
}
if ( line_number >= 0 )
{
logical_input_line = line_number;
}
}
void
as_where(
void)
{
char *p;
line_numberT line;
if (physical_input_file)
{
if (input_file_is_open())
{
p = logical_input_file ? logical_input_file : physical_input_file;
line = logical_input_line ? logical_input_line : physical_input_line;
fprintf(stderr,"%s:%u:", p, line);
}
else
{
p = logical_input_file ? logical_input_file : physical_input_file;
line = logical_input_line ? logical_input_line : physical_input_line;
if(layout_line != 0)
fprintf (stderr,"%s:%u:", layout_file, layout_line);
else
fprintf (stderr,"%s:unknown:", p);
}
}
else
{
}
}
void
as_file_and_line(
char **file_ret,
unsigned int *line_ret)
{
*file_ret = NULL;
*line_ret = 0;
if (physical_input_file)
{
*file_ret = logical_input_file ?
logical_input_file : physical_input_file;
if (input_file_is_open())
{
*line_ret = logical_input_line ?
logical_input_line : physical_input_line;
}
}
}
void
as_where_ProjectBuilder(
char **fileName,
char **directory,
int *line)
{
char *p, *q;
static char directory_buf[MAXPATHLEN];
getwd(directory_buf);
*fileName = NULL;
*directory = directory_buf;
*line = 0;
if(physical_input_file){
p = logical_input_file ?
logical_input_file : physical_input_file;
if(input_file_is_open()){
*line = logical_input_line ?
logical_input_line : physical_input_line;
}
*fileName = p;
q = strrchr(p, '/');
if(q == NULL)
return;
*fileName = p + 1;
strncat(directory_buf, p, q - p);
}
}
void
as_perror(
char *gripe,
char *filename)
{
fprintf (stderr,"as:file(%s) %s! ",
filename, gripe
);
if (errno > sys_nerr)
{
fprintf (stderr, "Unknown error #%d.", errno);
}
else
{
fprintf (stderr, "%s.", sys_errlist [errno]);
}
(void)putc('\n', stderr);
errno = 0;
if (input_file_is_open())
{
as_where();
}
bad_error = 1;
}
#ifdef NeXT_MOD
char *
find_an_include_file(
char *no_path_name)
{
char name_buffer [MAXPATHLEN];
register struct directory_stack * the_path_pointer;
register char * whole_file_name;
whole_file_name = no_path_name;
if (access(whole_file_name, R_OK))
{
whole_file_name = name_buffer;
if (no_path_name[0] != '/' && input_dir != NULL)
{
if (strlen (input_dir) + strlen (no_path_name) >= MAXPATHLEN)
as_fatal ("include file name too long: \"%s%s\"", input_dir, no_path_name);
else
{
strcpy (whole_file_name, input_dir);
strcat (whole_file_name, no_path_name);
if (!access(whole_file_name, R_OK))
goto found;
}
}
the_path_pointer = include;
while (the_path_pointer)
{
if (strlen (the_path_pointer->fname) + (strlen (no_path_name)) >= MAXPATHLEN)
as_fatal ("include file name too long: \"%s%s\"", the_path_pointer->fname, no_path_name);
else
{
*whole_file_name = '\0';
strcpy (whole_file_name, the_path_pointer->fname);
strcat (whole_file_name, "/");
strcat (whole_file_name, no_path_name);
if (!access(whole_file_name, R_OK))
goto found;
}
the_path_pointer = the_path_pointer->next;
}
the_path_pointer = include_defaults;
while (the_path_pointer->fname != NULL)
{
if (strlen (the_path_pointer->fname) + (strlen (no_path_name)) >= MAXPATHLEN)
as_fatal ("include file name too long: \"%s%s\"", the_path_pointer->fname, no_path_name);
else
{
*whole_file_name = '\0';
strcpy (whole_file_name, the_path_pointer->fname);
strcat (whole_file_name, "/");
strcat (whole_file_name, no_path_name);
if (!access(whole_file_name, R_OK))
goto found;
}
the_path_pointer++;
}
as_fatal ("Couldn't find the include file: \"%s\"", no_path_name);
return (NULL);
}
found:
return (whole_file_name);
}
void
read_an_include_file(
char *no_path_name)
{
char * buffer;
char * last_buffer_limit;
char * last_buffer_start;
int last_doing_include;
FILE * last_f_in;
char * last_file_name;
char * last_input_line_pointer;
char * last_logical_input_file;
line_numberT last_logical_input_line;
int last_partial_size;
char * last_partial_where;
char * last_physical_input_file;
line_numberT last_physical_input_line;
char last_save_source [AFTER_SIZE];
int last_buffer_length;
#if 0
char * last_save_buffer;
#endif
scrub_context_data scrub_context;
register char * whole_file_name;
whole_file_name = find_an_include_file (no_path_name);
last_buffer_limit = buffer_limit;
last_buffer_start = buffer_start;
last_doing_include = doing_include;
last_f_in = f_in;
last_file_name = file_name;
last_input_line_pointer = input_line_pointer;
last_logical_input_file = logical_input_file;
last_logical_input_line = logical_input_line;
last_partial_size = partial_size;
last_partial_where = partial_where;
last_physical_input_file = physical_input_file;
last_physical_input_line = physical_input_line;
memcpy(last_save_source, save_source, sizeof (save_source));
last_buffer_length = buffer_length;
save_scrub_context (&scrub_context);
partial_size = 0;
doing_include = TRUE;
input_scrub_begin ();
buffer = input_scrub_new_file (whole_file_name);
if (f_in != (FILE *)0)
read_a_source_file(buffer);
xfree (buffer_start);
buffer_limit = last_buffer_limit;
buffer_start = last_buffer_start;
doing_include = last_doing_include;
f_in = last_f_in;
file_name = last_file_name;
input_line_pointer = last_input_line_pointer;
logical_input_file = last_logical_input_file;
logical_input_line = last_logical_input_line;
partial_size = last_partial_size;
partial_where = last_partial_where;
physical_input_file = last_physical_input_file;
physical_input_line = last_physical_input_line;
memcpy(save_source, last_save_source, sizeof (save_source));
buffer_length = last_buffer_length;
restore_scrub_context (&scrub_context);
}
#endif