128 lines
2 KiB
C
Executable file
128 lines
2 KiB
C
Executable file
/* Copyright (c) 1985 Ceriel J.H. Jacobs */
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# ifndef lint
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static char rcsid[] = "$Header$";
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# endif
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# define _PROCESS_
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# include "in_all.h"
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# if USG_OPEN
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# include <fcntl.h>
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# endif
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# if BSD4_2_OPEN
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# include <sys/file.h>
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# endif
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# if POSIX_OPEN
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# include <sys/types.h>
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# include <fcntl.h>
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# endif
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# include <sys/types.h>
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# include <sys/stat.h>
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# include "process.h"
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# include "commands.h"
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# include "display.h"
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# include "prompt.h"
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# include "getline.h"
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# include "main.h"
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# include "options.h"
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# include "output.h"
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static int nfiles; /* Number of filenames on command line */
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/*
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* Visit a file, file name is "fn".
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*/
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VOID
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visitfile(fn) char *fn; {
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struct stat statbuf;
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if (stdf > 0) {
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/*
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* Close old input file
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*/
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(VOID) close(stdf);
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}
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currentfile = fn;
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# if USG_OPEN || BSD4_2_OPEN || POSIX_OPEN
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if ((stdf = open(fn,O_RDONLY,0)) < 0) {
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# else
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if ((stdf = open(fn,0)) < 0) {
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# endif
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error(": could not open");
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maxpos = 0;
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}
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else { /* Get size for percentage in prompt */
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(VOID) fstat(stdf, &statbuf);
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maxpos = statbuf.st_size;
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}
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do_clean();
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d_clean();
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}
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/*
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* process the input files, one by one.
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* If there is none, input is from a pipe.
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*/
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VOID
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processfiles(n,argv) char ** argv; {
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static char *dummies[3];
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long arg;
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if (!(nfiles = n)) {
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/*
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* Input from pipe
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*/
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currentfile = "standard-input";
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/*
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* Take care that *(filenames - 1) and *(filenames + 1) are 0
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*/
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filenames = &dummies[1];
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d_clean();
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do_clean();
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}
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else {
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filenames = argv;
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(VOID) nextfile(0);
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}
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*--argv = 0;
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if (startcomm) {
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n = getcomm(&arg);
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if (commands[n].c_flags & NEEDS_SCREEN) {
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redraw(0);
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}
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do_comm(n,arg);
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startcomm = 0;
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}
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redraw(1);
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if (setjmp(SetJmpBuf)) {
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nflush();
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redraw(1);
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}
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DoneSetJmp = 1;
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for (;;) {
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interrupt = 0;
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n = getcomm(&arg);
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do_comm(n, arg);
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}
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}
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/*
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* Get the next file the user asks for.
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*/
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int
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nextfile(n) {
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register i;
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if ((i = filecount + n) >= nfiles || i < 0) {
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return 1;
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}
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filecount = i;
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visitfile(filenames[i]);
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return 0;
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}
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