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/*
This program is similar to a program of the same name found on UNIX.
It prints the files named in the command tail with headings
except as modified below.
usage: pr [-i -ln -on -pname -tn -wn] file1[ file2 ... filen]
where: -i = accept files from stdin
-ln = set lines per page to n
-on = set page offset to n
-pname = output to file <name>
-tn = set tabs to n cols
-wn = set page width to n
note: the expr 'PAGE(mesg)' found in col 1 will cause a formfeed
and the 'mesg' to be included in the title line on this and
each subsequent page until EOF or another PAGE.
*/
#include <stdio.h>
#define TAB_DEFAULT 4
#define PAGE_LENGTH 60
#define PAGE_OFFSET 0
#define PAGE_WIDTH 80
#define MAX_ARGS 70
#define MAX_FILES 64
#define PATH_LENGTH 63
#define PAGE(head)
#ifndef TRUE
#define TRUE 1
#define FALSE 0
#endif
int page_length = PAGE_LENGTH;
int page_offset = PAGE_OFFSET;
int page_width = PAGE_WIDTH;
int tab_width = TAB_DEFAULT;
char *xargv[ MAX_ARGS ];
unsigned xargc;
char filenames [MAX_FILES] [PATH_LENGTH + 1];
char *print_name = "PRN:";
extern long atoi();
char title [80];
char date [20];
char time [20];
int ln, pn;
PAGE (MAIN)
main(argc, argv) /* copy file to printer */
int argc;
char *argv [];
{
FILE *file, *lp;
int fi = 0;
int read_stdin = FALSE;
int pn;
char *cp;
if (argc < 2) /* No args so tell 'em how it works */
{
fprintf(stderr,
"usage:\n\npr %s %s\n\n",
"[-i] [-lnn] [-onn] [-p<name>] [-tn] [-wnn]",
"[file1[ file2 ... filen]]");
fprintf(stderr,
"where: i = read 'stdin' for filenames to print\n");
fprintf(stderr,
" l = lines-per-page and nn <= 120\n");
fprintf(stderr,
" o = page offset and nn <= 120\n");
fprintf(stderr,
" p = print redirection and\n");
fprintf(stderr,
" <name> = pathname or devicename\n");
fprintf(stderr,
" t = spaces-per-tab and n <= 8\n");
fprintf(stderr,
" w = page width and nn <= 160\n\n");
fprintf(stderr,
"Notes: PAGE(<title text of any length>) in col 1 of text file\n");
fprintf(stderr,
" and <title text...> the title you want.\n\n");
fprintf(stderr,
" C pgms should include the following macro:\n\n");
fprintf(stderr,
" #define PAGE(title)\n\n");
fprintf(stderr,
" < and > not required and should not be used\n\n");
exit(0);
}
xargc = xargs("pr", argc, argv, xargv, MAX_ARGS);
for (pn = 0; pn < xargc; pn++)
{
if (*xargv[pn] == '-')
{
cp = xargv[pn] + 1;
switch (tolower(*cp))
{
case 'i':/* wants help */
read_stdin = TRUE;
break;
case 'l':/* page length change */
page_length = (int) atoi(cp + 1);
if ((page_length <= 0) || (page_length > 120))
page_length = PAGE_LENGTH;
break;
case 'p':/* direct output to file */
print_name = cp + 1;
break;
case 't':/* tab width change */
tab_width = (int) atoi(cp + 1);
if ((tab_width <= 0) || (tab_width > 8))
tab_width = TAB_DEFAULT;
break;
case 'o':/* page offset change */
page_offset = (int) atoi(cp + 1);
if ((page_offset < 0) || (page_offset > 120))
page_offset = PAGE_OFFSET;
break;
case 'w':/* page width change */
page_width = (int) atoi(cp + 1);
if ((page_width <= 0) || (page_width > 160))
page_width = PAGE_WIDTH;
break;
default:
fprintf(stderr, "pr: Invalid option = %s\n",
xargv[pn]);
}
}
else /* must be a path name */
{
if (fi < MAX_FILES)
strcpy(filenames[fi++], xargv[pn]);
else
{
fprintf(stderr, "pr: "
"Exceeded maximum file capacity\n");
break;
}
}
}
if ((lp = fopen(print_name, "w")) == 0)
{
fprintf(stderr, "pr: Unable to open %s as output\n", print_name);
exit(1);
}
if (read_stdin)
{
for(;;)
{
if (fi == MAX_FILES)
{
fputs("pr: Exceeded maximum file capacity\n",
stderr);
break;
}
cp = gets(filenames [fi], PATH_LENGTH);
if (!cp)
break;
else fi++;
}
}
/* now print each file */
for (pn = 0; pn < fi; pn++)
prt(filenames [pn], lp); /* print the file */
}
PAGE (NEW PAGE)
new_page (fnp, lp)
char *fnp;
FILE *lp;
{
if (ln < 3)
return;
++pn;
if (pn > 1)
fputc('\f', lp);
fprintf(lp, "%s %s %s PAGE %d: %s\n\n",
fnp, date, time, pn, title);
ln = 2;
}
PAGE (PRINT FILE)
prt (fnp, lp)
char fnp[];
FILE *lp;
{
FILE *inp_file;
int i, j, col;
char line [256], *st, *et, *sp;
inp_file = fopen(fnp, "r");
if (!inp_file)
{
fprintf(stderr, "pr: unable to open %s\n", fnp);
return;
}
else
fprintf(stderr, "pr: printing %s\n", fnp);
pn = 0;
ln = 999;
gdates(date); /* get date */
gtimes(time); /* and time */
*title = '\0';
while (fgets(line, 256, inp_file))
{
if (strncmp(line, "PAGE", 4) == 0)
{
if (st = index(line, '('))
{
et = index(line, ')');
strncpy(title, st + 1, (et) ? et - st - 1 : 160);
}
ln = 999;
}
if (ln > page_length)
new_page(fnp, lp);
if (page_offset)
indent(lp);
for (col = (page_offset) ? page_offset : 1, sp = &line[0];
*sp; sp++)
{
switch (*sp)
{
case '\t': /* tab character */
do
{
fputc(' ', lp);
col++;
if (col > page_width)
{
fputc('\n', lp);
col = (page_offset) ? page_offset : 1;
ln++;
if (ln > page_length)
new_page(fnp, lp);
if (page_offset)
indent(lp);
break;
}
} while ((col - 1) % tab_width);
break;
case '\f': /* form feed character */
new_page(fnp, lp);
break;
default:
fputc(*sp, lp);
++col;
if (col > page_width)
{
fputc('\n', lp);
col = (page_offset) ? page_offset - 1 : 0;
ln++;
if (ln > page_length)
new_page(fnp, lp);
if (page_offset)
indent(lp);
}
}
} /* of line print (for) */
++ln;
} /* of while not eof */
fclose(inp_file);
fputc(014, lp);
} /* of print */
indent(lp)
FILE *lp;
{
int i;
for(i = 1; i < page_offset; i++)
fputc(' ', lp);
}
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