static int read_file(char *filename, int quiet)
{
verify(filename != NULL, "null arg filename");
verify(filename[0] != '\0', "empty arg filename");
if (verbose > 0)
{ fprintf(stderr, "%s: read_file(%s)\n", prog, filename); }
static struct list_names filenames; // file names come from -f and include
static int init = 0;
if (init == 0)
{ list_names_init(&filenames, "filenames"); init++; }
if (verbose > 1)
{ list_names_print(&filenames); }
// if (filename is on the list already) { return 1 }
// else { put filename on the list and continue }
if (list_names_append_if_new(&filenames, filename) == 1)
{ return 1; }
if (verbose > 0)
{ list_names_print(&filenames); }
if (strcmp(filename, "-") == 0)
{ read_lines("[stdin]", stdin); return 1; }
FILE *fp = fopen(filename, "r");
if (fp == NULL)
{
if (quiet == 0)
fprintf(stderr, "%s: could not open input file %s: %s\n", prog, filename, strerror(errno));
return 0;
}
read_lines(filename, fp);
if (fclose(fp) != 0)
{
fprintf(stderr, "%s: could not close input file %s: %s\n", prog, filename, strerror(errno));
}
return 1;
}
int pr8_read(char *file)
{
if (file == NULL) return 0;
printf("file: %s\n", file);
static struct list_names * filenames = NULL;
if (filenames == NULL) filenames = list_names_allocate("filenames");
// by construction, filenames is now not NULL
// if (file is on the list already) { return 1 }
// else { put filename on the list and continue }
if (list_names_append_if_new(filenames, file) == 1)
{ return 1; }
if (strcmp(file, "-") == 0)
{ read_lines("[stdin]", stdin); return 1; }
FILE *fp = fopen(file, "r");
if (fp == NULL)
{
// fprintf(stderr, "%s: could not open input file %s: %s\n", prog, file, strerror(errno));
return 0;
}
read_lines(file, fp);
if (fclose(fp) != 0)
{
fprintf(stderr, "%s: could not close input file %s: %s\n", prog, file, strerror(errno));
}
return 1;
}
