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authorJim Meyering <jim@meyering.net>1995-10-17 13:35:26 +0000
committerJim Meyering <jim@meyering.net>1995-10-17 13:35:26 +0000
commit4feb3b1e06401394a3893a805e61b144ace77e8c (patch)
tree68cf8178d4cfa97d022ec9d48c017695053b6dce /src/fold.c
parent14390d1fed75bd2efd7fa1bf5fe977eb51c5d2cf (diff)
downloadcoreutils-4feb3b1e06401394a3893a805e61b144ace77e8c.tar.xz
Protoize. Reorder functions to obviate forward dcls. Remove forward dcls.
Diffstat (limited to 'src/fold.c')
-rw-r--r--src/fold.c188
1 files changed, 89 insertions, 99 deletions
diff --git a/src/fold.c b/src/fold.c
index 7fcbcf973..584a301e5 100644
--- a/src/fold.c
+++ b/src/fold.c
@@ -35,9 +35,6 @@ char *xmalloc ();
/* The name this program was run with. */
char *program_name;
-static int adjust_column ();
-static int fold_file ();
-
/* If nonzero, try to break on whitespace. */
static int break_spaces;
@@ -62,10 +59,9 @@ static struct option const longopts[] =
{"version", no_argument, &show_version, 1},
{NULL, 0, NULL, 0}
};
-
+
static void
-usage (status)
- int status;
+usage (int status)
{
if (status != 0)
fprintf (stderr, _("Try `%s --help' for more information.\n"),
@@ -88,82 +84,30 @@ standard output.\n\
exit (status);
}
-void
-main (argc, argv)
- int argc;
- char **argv;
-{
- int width = 80;
- int i;
- int optc;
- int errs = 0;
-
- program_name = argv[0];
- break_spaces = count_bytes = have_read_stdin = 0;
-
- /* Turn any numeric options into -w options. */
- for (i = 1; i < argc; i++)
- {
- if (argv[i][0] == '-' && ISDIGIT (argv[i][1]))
- {
- char *s;
-
- s = xmalloc (strlen (argv[i]) + 2);
- s[0] = '-';
- s[1] = 'w';
- strcpy (s + 2, argv[i] + 1);
- argv[i] = s;
- }
- }
+/* Assuming the current column is COLUMN, return the column that
+ printing C will move the cursor to.
+ The first column is 0. */
- while ((optc = getopt_long (argc, argv, "bsw:", longopts, (int *) 0))
- != EOF)
+static int
+adjust_column (int column, char c)
+{
+ if (!count_bytes)
{
- switch (optc)
+ if (c == '\b')
{
- case 0:
- break;
-
- case 'b': /* Count bytes rather than columns. */
- count_bytes = 1;
- break;
-
- case 's': /* Break at word boundaries. */
- break_spaces = 1;
- break;
-
- case 'w': /* Line width. */
- width = atoi (optarg);
- if (width < 1)
- error (1, 0, _("%s: invalid line width"), optarg);
- break;
-
- default:
- usage (1);
+ if (column > 0)
+ column--;
}
+ else if (c == '\r')
+ column = 0;
+ else if (c == '\t')
+ column = column + 8 - column % 8;
+ else /* if (isprint (c)) */
+ column++;
}
-
- if (show_version)
- {
- printf ("fold - %s\n", version_string);
- exit (0);
- }
-
- if (show_help)
- usage (0);
-
- if (argc == optind)
- errs |= fold_file ("-", width);
else
- for (i = optind; i < argc; i++)
- errs |= fold_file (argv[i], width);
-
- if (have_read_stdin && fclose (stdin) == EOF)
- error (1, errno, "-");
- if (fclose (stdout) == EOF)
- error (1, errno, _("write error"));
-
- exit (errs);
+ column++;
+ return column;
}
/* Fold file FILENAME, or standard input if FILENAME is "-",
@@ -171,9 +115,7 @@ main (argc, argv)
Return 0 if successful, 1 if an error occurs. */
static int
-fold_file (filename, width)
- char *filename;
- int width;
+fold_file (char *filename, int width)
{
FILE *istream;
register int c;
@@ -289,30 +231,78 @@ fold_file (filename, width)
return 0;
}
-/* Assuming the current column is COLUMN, return the column that
- printing C will move the cursor to.
- The first column is 0. */
-
-static int
-adjust_column (column, c)
- int column;
- char c;
+void
+main (int argc, char **argv)
{
- if (!count_bytes)
+ int width = 80;
+ int i;
+ int optc;
+ int errs = 0;
+
+ program_name = argv[0];
+ break_spaces = count_bytes = have_read_stdin = 0;
+
+ /* Turn any numeric options into -w options. */
+ for (i = 1; i < argc; i++)
{
- if (c == '\b')
+ if (argv[i][0] == '-' && ISDIGIT (argv[i][1]))
{
- if (column > 0)
- column--;
+ char *s;
+
+ s = xmalloc (strlen (argv[i]) + 2);
+ s[0] = '-';
+ s[1] = 'w';
+ strcpy (s + 2, argv[i] + 1);
+ argv[i] = s;
}
- else if (c == '\r')
- column = 0;
- else if (c == '\t')
- column = column + 8 - column % 8;
- else /* if (isprint (c)) */
- column++;
}
+
+ while ((optc = getopt_long (argc, argv, "bsw:", longopts, (int *) 0))
+ != EOF)
+ {
+ switch (optc)
+ {
+ case 0:
+ break;
+
+ case 'b': /* Count bytes rather than columns. */
+ count_bytes = 1;
+ break;
+
+ case 's': /* Break at word boundaries. */
+ break_spaces = 1;
+ break;
+
+ case 'w': /* Line width. */
+ width = atoi (optarg);
+ if (width < 1)
+ error (1, 0, _("%s: invalid line width"), optarg);
+ break;
+
+ default:
+ usage (1);
+ }
+ }
+
+ if (show_version)
+ {
+ printf ("fold - %s\n", version_string);
+ exit (0);
+ }
+
+ if (show_help)
+ usage (0);
+
+ if (argc == optind)
+ errs |= fold_file ("-", width);
else
- column++;
- return column;
+ for (i = optind; i < argc; i++)
+ errs |= fold_file (argv[i], width);
+
+ if (have_read_stdin && fclose (stdin) == EOF)
+ error (1, errno, "-");
+ if (fclose (stdout) == EOF)
+ error (1, errno, _("write error"));
+
+ exit (errs);
}