mirror of https://github.com/GnoConsortium/gno.git
Initial checkin of more v1.4. I've converted the manual page from
aroff source to nroff source so that it can go into the repository (binary files are not handled well in cvs).
This commit is contained in:
gdr-ftp
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2a99711c42
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.\" Converted to nroff source from the original aroff by Devin Reade,
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.\" 10 April 1998.
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.\"
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.\" $Id: more.1,v 1.1 1998/04/10 19:02:02 gdr-ftp Exp $
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.\"
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.TH MORE 1 "16 October 1993" GNO "Commands and Applications"
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.SH NAME
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more \- text pager
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.SH SYNOPSIS
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.BR more
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[
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.IR file " ..."
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]
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.SH DESCRIPTION
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.BR more
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allows the user to view the specified
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.IR file (s)
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screen by screen or line by line. If no
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.IR file s
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are specified, standard input is used.
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.LP
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Every time
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.BR more
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has displayed a screen of text, it displays a prompt:
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.nf
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- \fIfile\fR (xx%) -
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.fi
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indicating the name and percentage of the
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.IR file
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that has been viewed. If standard input is used, the prompt
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.nf
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- more -
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.fi
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is used instead.
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.LP
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A number of key commands are available at the prompt:
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.RS
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.IP \fBq\fR
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Quit viewing the current file, and move to the next file (if any).
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.IP [\fBRETURN\fR]
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Display the next line of the file.
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.IP [\fBESC\fR]
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Abort more, including any more files that may have been specified.
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.IP [\fBSPACE\fR]
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Display the next page of the file.
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.SH AUTHOR
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This version of more was written by Jawaid Bazyar and Derek Taubert,
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then updated by Mike Horwath.
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/*
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more.cc
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Revision history:
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v1.4 - Termcap support has been added and tested. Look for a soon to be
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faster version coming soon to a ~/bin directory near you!
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v1.32 - uses isatty(x) instead of fstat. more portable (opinion).
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soon to be added, TERMCAP support, won't that be nice?
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v1.31 - uses fstat to check whether output is a tty, instead of
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_Direction
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v1.3 - now prints name of file in block if multiple files specified
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*/
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#pragma optimize 8
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#pragma stacksize 3072
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#include <stdio.h>
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#include <stdlib.h>
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#include <types.h>
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#include <signal.h>
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#include <gno/gno.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <ioctl.h>
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#include <shell.h>
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#include <gsos.h>
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#include <string.h>
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#include <ctype.h>
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#include <texttool.h>
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#include <orca.h>
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#include <termcap.h>
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#pragma lint -1
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#define MAX_LINE 23
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#define MAX_COL 80
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int tprchar(char c);
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void PrintFileName(char *s)
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{
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char *r;
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for (r = s; *r != 0; r++)
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*r = tolower(*r);
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if ((r = strrchr(s,'/')) != NULL)
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printf("%s\n",r+1);
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else
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printf("%s\n",s);
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}
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char getcharacter(int fd)
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{
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char c;
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IORecGS r = {4, fd, (void *)&c, 1l};
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if (fd == -1)
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c = ReadChar(0);
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else
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ReadGS(&r);
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return c;
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}
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struct sgttyb sg;
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FILE *tty;
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int oldsg_flags;
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void inthndl(int sig, int code)
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{
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sg.sg_flags = oldsg_flags;
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ioctl(tty->_file,TIOCSETP,&sg);
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exit(sig);
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}
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char inv[20], nor[20];
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char *pterm, *pcap, *ps;
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char termcap[1030], capability[100];
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int main(int argc,char *argv[])
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{
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FILE *file;
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int line,col;
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int i;
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int c,quit,abort;
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int pipeFlag; /* 1 means input is piped in or redirected */
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int standardOut;
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EOFRecGS eofs;
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char expanded[65];
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char *truncated;
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static struct stat sb;
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extern int _INITGNOSTDIO(void);
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if (!_INITGNOSTDIO())
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{
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fprintf(stderr,"'more' requires GNO/ME.\n");
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exit(1);
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}
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if ((pterm = getenv ("TERM"))
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&& (tgetent (termcap, pterm) == 1))
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{
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pcap = capability;
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if (ps = tgetstr ("so", &pcap))
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{
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/*
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* sun has padding in here. this is NOT portable.
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* better to use tputs() to strip it...
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*/
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strcpy (inv, ps);
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}
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else { fprintf(stderr,"couldn't get standout mode\n");
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exit(1); }
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if (ps = tgetstr ("se", &pcap))
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{
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strcpy (nor, ps);
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}
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}
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setvbuf(stdout,NULL,_IOLBF,256);
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tty = fopen(".tty","r");
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/* turn off echo mode */
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ioctl(tty->_file, TIOCGETP, &sg);
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signal(SIGINT, inthndl);
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/*putchar(6);*/
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if (!isatty(2))
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standardOut = 0;
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else
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standardOut = 1;
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pipeFlag = (argc == 1) ? 1 : 0;
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if (argc == 1)
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argc = 2;
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quit = 0;
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abort = 0;
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oldsg_flags = sg.sg_flags;
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sg.sg_flags &= ~ECHO;
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ioctl(tty->_file, TIOCSETP, &sg);
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for (i = 1; (i < argc && !abort); i++)
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{
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quit = 0;
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if (pipeFlag)
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{
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file = stdin;
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}
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else
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{
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truncated = strrchr(argv[i],'/');
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if (truncated == NULL) truncated = argv[i];
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else truncated++;
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file = fopen(argv[i],"rb");
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if (file == NULL)
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{
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perror(argv[i]);
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/*putchar(5);*/ exit(1);
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}
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eofs.pCount = 2;
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eofs.refNum = file->_file;
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GetEOFGS(&eofs);
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if (toolerror())
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{
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printf("GS/OS Error $%X\n",toolerror());
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/*putchar(5);*/ exit(-1);
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}
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}
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if (argc > 2)
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{
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printf("::::::::::::::::\n");
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PrintFileName(argv[i]);
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printf("::::::::::::::::\n");
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line = 3; col = 1;
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}
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else
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{
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line = 1; col = 1;
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}
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c = getc(file); /* wierdness fix */
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if (c == EOF) quit = 1;
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c &= 0xFF;
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if (c == 0x04) quit = 1;
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while (!quit && !abort)
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{
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int k;
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if (c == 0x0c)
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{
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printf("^L\n");
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line = MAX_LINE; col = 1;
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}
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else if (c == '\r')
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{
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if ((k = getc(file)) == '\n') /* IBM silly CR & LF EOL */
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putchar('\n');
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else
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{
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ungetc(k,file); putchar('\n');
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}
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col = 1; line++;
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}
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else if (c == '\n')
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{
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putchar('\n');
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col = 1; line++;
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}
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else
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{
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putchar(c);
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col++;
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if (col > MAX_COL)
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{
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col = 1; line++;
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}
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}
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if ((line == MAX_LINE) && standardOut)
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{ long percent;
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tputs(inv,1,tprchar);
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if (!pipeFlag)
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{
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percent = (ftell(file) * 100) / eofs.eof;
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printf(" - %s (%2ld%%) - ",truncated,percent);
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}
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else
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printf(" - (more) - ");
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tputs(nor,1,tprchar);
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fflush(stdout);
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c = getcharacter(tty->_file);
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c = c & 0x7f;
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if (c == 'q') quit = 1;
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if (c == 27) abort = 1;
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if (c == 13) line--;
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else line = 1;
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for (c = 0; c < (12 + ((percent == 100) ? 1 : 0) +
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(pipeFlag ? 0 : strlen(truncated))); c++)
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{
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putchar(8);
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putchar(' ');
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putchar(8);
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}
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}
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c = getc(file);
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if (c == EOF) quit = 1;
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c &= 0xFF;
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if (c == 0x04) quit = 1;
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}
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if (!pipeFlag)
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fclose(file);
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else
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abort = 1; /* we are DONE if this was a pipe */
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if (!abort && (argc > 2) && (i != argc) && (line < MAX_LINE)
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&& standardOut)
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{
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tputs(inv,1,tprchar);
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printf("hit a key for next file");
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tputs(nor,1,tprchar);
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fflush(stdout);
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c = getcharacter(tty->_file);
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for (c = 0; c < 23; c++)
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{
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putchar(8);
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putchar(' ');
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putchar(8);
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}
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c = c & 0x7f;
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if (c == 27) abort = 1;
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}
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}
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/*putchar(5);*/
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sg.sg_flags = oldsg_flags;
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ioctl(tty->_file,TIOCSETP,&sg);
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exit(0);
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}
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int tprchar(char c)
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{
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putchar( c );
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}
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