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Internet Message Format  |  1991-07-08  |  58KB
  1. Path: news.larc.nasa.gov!amiga-request
  2. From: amiga-request@ab20.larc.nasa.gov (Amiga Sources/Binaries Moderator)
  3. Subject: v91i131: Less 1.4Z - text pager, Part05/07
  4. Reply-To: rayz@altair.csustan.edu (R. L. Zarling)
  5. Newsgroups: comp.sources.amiga
  6. Message-ID: <comp.sources.amiga.v91i131@ab20.larc.nasa.gov>
  7. References: <comp.sources.amiga.v91i127@ab20.larc.nasa.gov>
  8. Date: 04 Jul 91 17:28:18 GMT
  9. Approved: tadguy@uunet.UU.NET (Tad Guy)
  10. X-Mail-Submissions-To: amiga@uunet.uu.net
  11. X-Post-Discussions-To: comp.sys.amiga.misc
  12.  
  13. Submitted-by: rayz@altair.csustan.edu (R. L. Zarling)
  14. Posting-number: Volume 91, Issue 131
  15. Archive-name: utilities/less-1.4z/part05
  16.  
  17. #!/bin/sh
  18. # This is a shell archive.  Remove anything before this line, then unpack
  19. # it by saving it into a file and typing "sh file".  To overwrite existing
  20. # files, type "sh file -c".  You can also feed this as standard input via
  21. # unshar, or by typing "sh <file", e.g..  If this archive is complete, you
  22. # will see the following message at the end:
  23. #        "End of archive 5 (of 7)."
  24. # Contents:  Less1.4Z/Less.doc.uu Less1.4Z/src/command.c
  25. # Wrapped by tadguy@ab20 on Thu Jul  4 13:28:16 1991
  26. PATH=/bin:/usr/bin:/usr/ucb ; export PATH
  27. if test -f 'Less1.4Z/Less.doc.uu' -a "${1}" != "-c" ; then 
  28.   echo shar: Will not clobber existing file \"'Less1.4Z/Less.doc.uu'\"
  29. else
  30. echo shar: Extracting \"'Less1.4Z/Less.doc.uu'\" \(29005 characters\)
  31. sed "s/^X//" >'Less1.4Z/Less.doc.uu' <<'END_OF_FILE'
  32. Xbegin 666 Less.doc
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  450. XM+"!O<B`G8R<N("`G6V$M;5TG(&UA=&-H97,@86YY"G-I;F=L92!C:&%R86-T<
  451. XM97(@:6X@=&AE(')A;F=E("=A)R!T:')O=6=H("=M)R!I;F-L=7-I=F4N("`GN
  452. XM7G@G"F9I;F1S('@@;VYL>2!A="!T:&4@8F5G:6YN:6YG(&]F(&$@;&EN93L@5
  453. XM)W@D)R!O;FQY(&%T('1H92!E;F0@;V8*82!L:6YE+B`@)WA\>2<@;6%T8VAE<
  454. XM<R!E:71H97(@>"!O<B!Y+B`@5&AE('9A<FEO=7,@<&EE8V5S(&-A;B!B90IC]
  455. XM;VUB:6YE9"P@;V8@8V]U<G-E+"!A;F0@9W)O=7!E9"!W:71H('!A<F5N=&AE8
  456. XM<V5S+B`@1F]R(&EN<W1A;F-E+`HG*%M!85UN>7Q;165=86-H*2`K;V8@>6]UK
  457. XM)R!W;W5L9"!F:6YD(&%N>2!P:')A<V4@8F5G:6YN:6YG('=I=&@*)V%N>2<@K
  458. XM;W(@)V5A8V@G("AP;W-S:6)L>2!C87!I=&%L:7IE9"D@9F]L;&]W960@8GD@'
  459. XM;VYE(&]R(&UO<F4*8FQA;FMS+"!F;VQL;W=E9"!B>2`G;V8@>6]U)RX@)R`H[
  460. XM8V%N*3]N;W0@)R!M871C:&5S(&5I=&AE<B`G;F]T)PIO<B`G8V%N;F]T)RP@_
  461. XM8G5T(&YO="`G;F]T:&EN9R<@;W(@)V-A;F-E;"<N("`G6UYA+7I!+5I=:5M>3
  462. XM82UZ02U:72<*9FEN9',@86QL(&]C8W5R86YC97,@;V8@82!V87)I86)L92`GT
  463. XM:2<@:6X@82!P<F]G<F%M+"!B=70@9&]E<R!N;W0*9FEN9"`G:2<@96UB961DV
  464. XM960@:6X@;W1H97(@=F%R:6%B;&4@;F%M97,@;W(@=V]R9',N("!4;R!M871CB
  465. XM:"!A"FUE=&%C:&%R86-T97(@;&ET97)A;&QY+"!P<F5C961E(&ET('=I=&@@6
  466. XM82!B86-K<VQA<V@[(&4N9RX@)UPN("!<*B<*=V]U;&0@;6%T8V@@82!P97)IA
  467. XM;V0@9F]L;&]W960@8GD@='=O('-P86-E<R!A;F0@86X@87-T97)I<VLN"@H*W
  468. XM7PA/7PAT7PAH7PAE7PAR(%\(0U\(;U\(;E\(<U\(:5\(9%\(95\(<E\(85\(#
  469. XM=%\(:5\(;U\(;E\(<PH*3&5S<R!I<R!R97-I9&5N=&%B;&4L('-O(&EF('EOG
  470. XM=2!U<V4@:70@82!L;W0@>6]U(&UA>2!W:7-H('1O(&%D9`II="!T;R!Y;W5RS
  471. XM('-Y<W1E;2!R97-I9&5N="!L:7-T+B`@5&\@9&\@=&AI<RP@;6%K92!S=7)ED
  472. XM('1H92!P=7)E"F)I="!I<R!S970@:6X@=&AE(&9I;&4@<')O=&5C=&EO;B!CP
  473. XM;V1E<R`H<')O=&5C="`K<"!,97-S*2X@(%1H96X*861D('1H92!L:6YE(")R<
  474. XM97-I9&5N="!C.DQE<W,B("AO<B!W:&%T979E<B!Y;W5R('!A=&@@:7,I('1OU
  475. XM('EO=7(*<W1A<G1U<"US97%U96YC92X*"DQE<W,@=7-E<R!I;G1E<FYA;&QYM
  476. XM($%S8VEI(&-H87)A8W1E<G,@,"!A;F0@,3(Y+3$S-BX@(%-I;F-E('1H97-E(
  477. XM"F%R92!N;VXM<')I;G1I;F<@8VAA<F%C=&5R<RP@:70@<VAO=6QD;B=T(&UA4
  478. XM:V4@86YY(&1I9F9E<F5N8V4*=6YD97(@;F]R;6%L(&-I<F-U;7-T86YC97,NV
  479. XM("!#:&%R86-T97(@,"!W:6QL(&1I<W!L87D@87,@)T`G(&%N9`HQ,CDM,3,VM
  480. XM(&%S(%X_+@H*"E\(5U\(:%\(95\(;B!?"'5?"'-?"&5?"&0@7PAO7PAN(%\(J
  481. XM<U\(=%\(85\(;E\(9%\(85\(<E\(9"!?"&E?"&Y?"'!?"'5?"'0@*%\(<E\(]
  482. XM85\(=%\(:%\(95\(<B!?"'1?"&A?"&%?"&X@7PAA("!?"&9?"&E?"&Q?"&4ID
  483. XM+"`@7PAY7PAO7PAU("!?"&-?"&%?"&X*7PAM7PAO7PAV7PAE("!?"&)?"&%?R
  484. XM"&-?"&M?"'=?"&%?"')?"&1?"',@(%\(;U\(;E\(;%\(>2!?"&$@7PAF7PAID
  485. XM7PAN7PAI7PAT7PAE(%\(85\(;5\(;U\(=5\(;E\(="P@7PAC7PAO7PAR7PAR(
  486. XM7PAE7PAS7PAP7PAO7PAN7PAD7PAI7PAN7PAG(%\(=%\(;R!?"'1?"&A?"&%?H
  487. XM"'0*7PAP7PAO7PAR7PAT7PAI7PAO7PAN(%\(;U\(9B!?"'1?"&A?"&4@7PAFH
  488. XM7PAI7PAL7PAE(%\(=U\(:%\(:5\(8U\(:"!?"&E?"',@7PAS7PAT7PAI7PALG
  489. XM7PAL(%\(8E\(=5\(9E\(9E\(95\(<E\(95\(9"X@(%\(5%\(:%\(92`M7PAB(
  490. XM("!?"&]?"'!?"'1?"&E?"&]?"&X*7PAM7PAA7PAY(%\(8E\(92!?"'5?"'-?S
  491. XM"&5?"&0@7PAT7PAO(%\(95\(>%\(<%\(85\(;E\(9"!?"'1?"&A?"&4@7PAB2
  492. XB7PAU7PAF7PAF7PAE7PAR(%\(<U\(<%\(85\(8U\(92X*"G1??
  493. X``
  494. Xend
  495. Xsize 20689
  496. END_OF_FILE
  497. if test 29005 -ne `wc -c <'Less1.4Z/Less.doc.uu'`; then
  498.     echo shar: \"'Less1.4Z/Less.doc.uu'\" unpacked with wrong size!
  499. fi
  500. # end of 'Less1.4Z/Less.doc.uu'
  501. fi
  502. if test -f 'Less1.4Z/src/command.c' -a "${1}" != "-c" ; then 
  503.   echo shar: Will not clobber existing file \"'Less1.4Z/src/command.c'\"
  504. else
  505. echo shar: Extracting \"'Less1.4Z/src/command.c'\" \(25166 characters\)
  506. sed "s/^X//" >'Less1.4Z/src/command.c' <<'END_OF_FILE'
  507. X/*
  508. X * User-level command processor.
  509. X */
  510. X
  511. X#ifdef AMIGA
  512. X/* Compile with -HPreHeader.q to get "less.h"! */
  513. X#else
  514. X#include "less.h"
  515. X#endif
  516. X
  517. X#include "position.h"
  518. X#include <setjmp.h>
  519. X
  520. Xextern jmp_buf main_loop;
  521. Xextern int erase_char, kill_char;
  522. Xextern int pr_type;
  523. Xextern int sigs;
  524. Xextern int ispipe;
  525. Xextern int quit_at_eof;
  526. Xextern int hit_eof;
  527. Xextern int sc_width, sc_height;
  528. Xextern int sc_window;
  529. Xextern char *first_cmd;
  530. Xextern char *every_first_cmd;
  531. Xextern char version[];
  532. Xextern char current_file[];
  533. Xextern char *editor;
  534. X
  535. X#ifdef AMIGA
  536. Xextern int scroll;
  537. Xextern curr_ac, ac;             /* local argc for file names */
  538. Xextern char **av;
  539. Xint user_errors = 0;
  540. X#endif
  541. X
  542. Xstatic char cmdbuf[90];         /* Buffer for holding a multi-char command */
  543. X#if SHELL_ESCAPE
  544. Xstatic char shellcmd[200];      /* For holding last shell command for "!!" */
  545. X#endif
  546. Xstatic char *cp;                /* Pointer into cmdbuf */
  547. Xstatic int cmd_col;             /* Current column of the multi-char command */
  548. Xstatic char mcc;                /* The multi-char command letter (e.g. '/') */
  549. Xstatic char last_mcc;           /* The previous mcc */
  550. X#ifdef AMIGA
  551. Xint screen_trashed;             /* The screen has been overwritten */
  552. X#else
  553. Xstatic int screen_trashed;      /* The screen has been overwritten */
  554. X#endif
  555. X
  556. X/* Prototypes for functions defined in command.c */
  557. X
  558. Xstatic int cmd_erase __PROTO((void));
  559. Xstatic int cmd_char __PROTO((int c));
  560. Xstatic int cmd_int __PROTO((void));
  561. Xstatic void cmd_exec __PROTO((void));
  562. Xstatic void prompt __PROTO((void));
  563. Xstatic int getcc __PROTO((void));
  564. X
  565. X
  566. X/*
  567. X * Reset command buffer (to empty).
  568. X */
  569. X#ifdef __STDC__
  570. Xvoid cmd_reset (void)
  571. X#else
  572. Xcmd_reset()
  573. X#endif
  574. X{
  575. X        cp = cmdbuf;
  576. X}
  577. X
  578. X/*
  579. X * Backspace in command buffer.
  580. X */
  581. X#ifdef __STDC__
  582. Xstatic int cmd_erase (void)
  583. X#else
  584. X        static int
  585. Xcmd_erase()
  586. X#endif
  587. X{
  588. X        if (cp == cmdbuf)
  589. X                /*
  590. X                 * Backspace past beginning of the string:
  591. X                 * this usually means abort the command.
  592. X                 */
  593. X                return (1);
  594. X
  595. X        if (control_char(*--cp))
  596. X        {
  597. X                /*
  598. X                 * Erase an extra character, for the carat.
  599. X                 */
  600. X                backspace();
  601. X                cmd_col--;
  602. X        }
  603. X        backspace();
  604. X        cmd_col--;
  605. X        return (0);
  606. X}
  607. X
  608. X/*
  609. X * Set up the display to start a new multi-character command.
  610. X */
  611. X#ifdef __STDC__
  612. Xvoid start_mcc (int c)
  613. X#else
  614. Xstart_mcc(c)
  615. X        int c;
  616. X#endif
  617. X{
  618. X        mcc = c;
  619. X        lower_left();
  620. X        clear_eol();
  621. X        putchr(mcc);
  622. X        cmd_col = 1;
  623. X}
  624. X
  625. X/*
  626. X * Process a single character of a multi-character command, such as
  627. X * a number, or the pattern of a search command.
  628. X */
  629. X#ifdef __STDC__
  630. Xstatic int cmd_char (int c)
  631. X#else
  632. X        static int
  633. Xcmd_char(c)
  634. X        int c;
  635. X#endif
  636. X{
  637. X        if (c == erase_char)
  638. X        {
  639. X                if (cmd_erase())
  640. X                        return (1);
  641. X        } else if (c == kill_char)
  642. X        {
  643. X                /* {{ Could do this faster, but who cares? }} */
  644. X                while (cmd_erase() == 0)
  645. X                        ;
  646. X        } else
  647. X        {
  648. X                /*
  649. X                 * Append the character to the string,
  650. X                 * if there is room in the buffer and on the screen.
  651. X                 */
  652. X                if (cp < &cmdbuf[sizeof(cmdbuf)-1] && cmd_col < sc_width-3)
  653. X                {
  654. X                        *cp++ = c;
  655. X                        if (control_char(c))
  656. X                        {
  657. X                                putchr('^');
  658. X                                cmd_col++;
  659. X                                c = carat_char(c);
  660. X                        }
  661. X                        putchr(c);
  662. X                        cmd_col++;
  663. X                } else
  664. X                        bell();
  665. X        }
  666. X        return (0);
  667. X}
  668. X
  669. X/*
  670. X * Return the number currently in the command buffer.
  671. X */
  672. X#ifdef __STDC__
  673. Xstatic int cmd_int (void)
  674. X#else
  675. X        static int
  676. Xcmd_int()
  677. X#endif
  678. X{
  679. X        *cp = '\0';
  680. X        cp = cmdbuf;
  681. X        return (atoi(cmdbuf));
  682. X}
  683. X
  684. X/*
  685. X * Move the cursor to lower left before executing a command.
  686. X * This looks nicer if the command takes a long time before
  687. X * updating the screen.
  688. X */
  689. X#ifdef __STDC__
  690. Xstatic void cmd_exec (void)
  691. X#else
  692. X        static void
  693. Xcmd_exec()
  694. X#endif
  695. X{
  696. X        lower_left();
  697. X        flush();
  698. X}
  699. X
  700. X/*
  701. X * Display the appropriate prompt.
  702. X */
  703. X#ifdef __STDC__
  704. Xstatic void prompt (void)
  705. X#else
  706. X        static void
  707. Xprompt()
  708. X#endif
  709. X{
  710. X        register char *p;
  711. X
  712. X        if (first_cmd != NULL && *first_cmd != '\0')
  713. X                /*
  714. X                 * No prompt necessary if commands are from first_cmd
  715. X                 * rather than from the user.
  716. X                 */
  717. X                return;
  718. X
  719. X        /*
  720. X         * If nothing is displayed yet, display starting from line 1.
  721. X         */
  722. X        if (position(TOP) == NULL_POSITION)
  723. X                jump_back(1);
  724. X        else if (screen_trashed)
  725. X                repaint();
  726. X        screen_trashed = 0;
  727. X
  728. X        /*
  729. X         * Select the proper prompt and display it.
  730. X         */
  731. X        lower_left();
  732. X        clear_eol();
  733. X        p = pr_string();
  734. X        if (p == NULL)
  735. X                putchr(':');
  736. X        else
  737. X        {
  738. X#ifdef AMIGA
  739. X                if ( strlen(p) > sc_width )
  740. X                    screen_trashed = 1;
  741. X#endif
  742. X                so_enter();
  743. X                putstr(p);
  744. X                so_exit();
  745. X        }
  746. X}
  747. X
  748. X/*
  749. X * Get command character.
  750. X * The character normally comes from the keyboard,
  751. X * but may come from the "first_cmd" string.
  752. X */
  753. X#ifdef __STDC__
  754. Xstatic int getcc (void)
  755. X#else
  756. X        static int
  757. Xgetcc()
  758. X#endif
  759. X{
  760. X        if (first_cmd == NULL)
  761. X                return (getchr());
  762. X
  763. X        if (*first_cmd == '\0')
  764. X        {
  765. X                /*
  766. X                 * Reached end of first_cmd input.
  767. X                 */
  768. X                first_cmd = NULL;
  769. X                if (cp > cmdbuf && position(TOP) == NULL_POSITION)
  770. X                {
  771. X                        /*
  772. X                         * Command is incomplete, so try to complete it.
  773. X                         * There are only two cases:
  774. X                         * 1. We have "/string" but no newline.  Add the \n.
  775. X                         * 2. We have a number but no command.  Treat as #g.
  776. X                         * (This is all pretty hokey.)
  777. X                         */
  778. X                        if (mcc != ':')
  779. X                                /* Not a number; must be search string */
  780. X                                return ('\n');
  781. X                        else
  782. X                                /* A number; append a 'g' */
  783. X                                return ('g');
  784. X                }
  785. X                return (getchr());
  786. X        }
  787. X        return (int)(*first_cmd++);
  788. X}
  789. X
  790. X/*
  791. X * Main command processor.
  792. X * Accept and execute commands until a quit command, then return.
  793. X */
  794. X#ifdef __STDC__
  795. Xvoid commands (void)
  796. X#else
  797. X        public void
  798. Xcommands()
  799. X#endif
  800. X{
  801. X        register int c;
  802. X        register int n;
  803. X#ifndef AMIGA
  804. X        register int scroll = 10;
  805. X#endif
  806. X
  807. X        last_mcc = 0;
  808. X        n = 0;
  809. X        setjmp(main_loop);
  810. X        mcc = 0;
  811. X
  812. X        for (;;)
  813. X        {
  814. X                /*
  815. X                 * Display prompt and accept a character.
  816. X                 */
  817. X                psignals();     /* See if any signals need processing */
  818. X
  819. X#ifdef AMIGA
  820. X                if (quit_at_eof == 2 && hit_eof > 1)
  821. X#else
  822. X                if (quit_at_eof && (quit_at_eof + hit_eof) > 2)
  823. X#endif
  824. X                        /*
  825. X                         * After hitting end-of-file for the second time,
  826. X                         * automatically advance to the next file.
  827. X                         * If there are no more files, quit.
  828. X                         */
  829. X                        next_file(1);
  830. X                cmd_reset();
  831. X                prompt();
  832. X                c = getcc();
  833. X
  834. X        again:
  835. X                if (sigs)
  836. X                        continue;
  837. X                if (mcc)
  838. X                {
  839. X                        /*
  840. X                         * We are in a multi-character command.
  841. X                         * All chars until newline go into the command buffer.
  842. X                         * (Note that mcc == ':' is a special case that
  843. X                         *  means a number is being entered.)
  844. X                         */
  845. X                        if (mcc != ':' && (c == '\n' || c == '\r'))
  846. X                        {
  847. X                                char *p;
  848. X                                static char fcbuf[100];
  849. X
  850. X                                /*
  851. X                                 * Execute the command.
  852. X                                 */
  853. X                                *cp = '\0';
  854. X                                cmd_exec();
  855. X                                switch (mcc)
  856. X                                {
  857. X                                case '/': case '?':
  858. X                                        search(mcc, cmdbuf, n);
  859. X                                        break;
  860. X                                case '+':
  861. X                                        for (p = cmdbuf;  *p == '+' || *p == ' ';  p++) ;
  862. X                                        if (*p == '\0')
  863. X                                                every_first_cmd = NULL;
  864. X                                        else
  865. X                                        {
  866. X                                                strtcpy(fcbuf, p, sizeof(fcbuf));
  867. X                                                every_first_cmd = fcbuf;
  868. X                                        }
  869. X                                        break;
  870. X                                case '-':
  871. X                                        toggle_option(cmdbuf);
  872. X                                        break;
  873. X                                case 'E':
  874. X                                        /*
  875. X                                         * Ignore leading spaces
  876. X                                         * in the filename.
  877. X                                         */
  878. X                                        for (p = cmdbuf;  *p == ' ';  p++) ;
  879. X                                        edit(glob(p));
  880. X                                        break;
  881. X#if SHELL_ESCAPE
  882. X                                case '!':
  883. X                                        /*
  884. X                                         * !! just uses whatever is in shellcmd.
  885. X                                         * Otherwise, copy cmdbuf to shellcmd,
  886. X                                         * replacing any '%' with the current
  887. X                                         * file name.
  888. X                                         */
  889. X                                        if (*cmdbuf != '!')
  890. X                                        {
  891. X                                                register char *fr, *to;
  892. X                                                to = shellcmd;
  893. X                                                for (fr = cmdbuf;
  894. X                                                        *fr != '\0';  fr++)
  895. X                                                {
  896. X                                                        if (*fr != '%')
  897. X                                                                *to++ = *fr;
  898. X                                                        else
  899. X                                                        {
  900. X                                                                strcpy(to,
  901. X                                                                 current_file);
  902. X                                                                to += strlen(to);
  903. X                                                        }
  904. X                                                }
  905. X                                                *to = '\0';
  906. X                                        }
  907. X                                        lsystem(shellcmd);
  908. X                                        screen_trashed = 1;
  909. X                                        error("!done");
  910. X                                        break;
  911. X#endif
  912. X                                }
  913. X                                mcc = 0;
  914. X                        } else
  915. X                        {
  916. X                                if (mcc == ':' && (c < '0' || c > '9') &&
  917. X                                        c != erase_char && c != kill_char)
  918. X                                {
  919. X                                        /*
  920. X                                         * This is not part of the number
  921. X                                         * we were entering.  Process
  922. X                                         * it as a regular character.
  923. X                                         */
  924. X                                        mcc = 0;
  925. X                                        goto again;
  926. X                                }
  927. X
  928. X                                /*
  929. X                                 * Append the char to the command buffer.
  930. X                                 */
  931. X                                if (cmd_char(c))
  932. X                                {
  933. X                                        /* Abort the multi-char command. */
  934. X                                        mcc = 0;
  935. X                                        continue;
  936. X                                }
  937. X                                c = getcc();
  938. X                                goto again;
  939. X                        }
  940. X                } else switch (c)
  941. X                {
  942. X                case '0': case '1': case '2': case '3': case '4':
  943. X                case '5': case '6': case '7': case '8': case '9':
  944. X                        /*
  945. X                         * First digit of a number.
  946. X                         */
  947. X                        start_mcc(':');
  948. X                        goto again;
  949. X
  950. X                case 'f':
  951. X                case ' ':
  952. X                case CONTROL('F'):
  953. X#ifdef AMIGA
  954. X                case CONTROL('V'):
  955. X#endif
  956. X                        /*
  957. X                         * Forward one screen.
  958. X                         */
  959. X#ifdef AMIGA
  960. X                        if (hit_eof && quit_at_eof == 1)
  961. X                        {
  962. X                                if (curr_ac+1 == ac)
  963. X                                        return;
  964. X                                else
  965. X                                        next_file(1);
  966. X                        } else
  967. X#endif
  968. X                        {
  969. X                                n = cmd_int();
  970. X                                if (n <= 0)
  971. X                                        n = sc_window;
  972. X                                cmd_exec();
  973. X                                forward(n, 1);
  974. X                        }
  975. X                        break;
  976. X
  977. X                case 'b':
  978. X#ifdef AMIGA
  979. X                case 'B':
  980. X#endif
  981. X                case CONTROL('B'):
  982. X                        /*
  983. X                         * Backward one screen.
  984. X                         */
  985. X                        n = cmd_int();
  986. X                        if (n <= 0)
  987. X                                n = sc_window;
  988. X                        cmd_exec();
  989. X                        backward(n, 1);
  990. X                        break;
  991. X
  992. X                case 'e':
  993. X                case 'j':
  994. X                case '\r':
  995. X                case '\n':
  996. X                case CONTROL('E'):
  997. X#ifdef AMIGA
  998. X                case CONTROL('N'):
  999. X#endif
  1000. X                        /*
  1001. X                         * Forward N (default 1) line.
  1002. X                         */
  1003. X                        n = cmd_int();
  1004. X                        if (n <= 0)
  1005. X                                n = 1;
  1006. X                        cmd_exec();
  1007. X                        forward(n, 0);
  1008. X                        break;
  1009. X
  1010. X                case 'y':
  1011. X                case 'k':
  1012. X                case CONTROL('K'):
  1013. X                case CONTROL('Y'):
  1014. X#ifdef AMIGA
  1015. X                case '\b':
  1016. X                case CONTROL('P'):
  1017. X#endif
  1018. X                        /*
  1019. X                         * Backward N (default 1) line.
  1020. X                         */
  1021. X                        n = cmd_int();
  1022. X                        if (n <= 0)
  1023. X                                n = 1;
  1024. X                        cmd_exec();
  1025. X                        backward(n, 0);
  1026. X                        break;
  1027. X
  1028. X                case 'd':
  1029. X                case CONTROL('D'):
  1030. X                        /*
  1031. X                         * Forward N lines
  1032. X                         * (default same as last 'd' or 'u' command).
  1033. X                         */
  1034. X                        n = cmd_int();
  1035. X                        if (n > 0)
  1036. X                                scroll = n;
  1037. X                        cmd_exec();
  1038. X                        forward(scroll, 0);
  1039. X                        break;
  1040. X
  1041. X                case 'u':
  1042. X                case CONTROL('U'):
  1043. X                        /*
  1044. X                         * Backward N lines
  1045. X                         * (default same as last 'd' or 'u' command).
  1046. X                         */
  1047. X                        n = cmd_int();
  1048. X                        if (n > 0)
  1049. X                                scroll = n;
  1050. X                        cmd_exec();
  1051. X                        backward(scroll, 0);
  1052. X                        break;
  1053. X
  1054. X                case 'R':
  1055. X                        /*
  1056. X                         * Flush buffers, then repaint screen.
  1057. X                         * Don't flush the buffers on a pipe!
  1058. X                         */
  1059. X                        if (!ispipe)
  1060. X                                ch_init(0);
  1061. X                        /* Fall thru */
  1062. X                case 'r':
  1063. X                case CONTROL('R'):
  1064. X                case CONTROL('L'):
  1065. X                        /*
  1066. X                         * Repaint screen.
  1067. X                         */
  1068. X                        repaint();
  1069. X                        break;
  1070. X
  1071. X                case 'g':
  1072. X#ifdef AMIGA
  1073. X                case '<':
  1074. X#endif
  1075. X                        /*
  1076. X                         * Go to line N, default beginning of file.
  1077. X                         */
  1078. X                        n = cmd_int();
  1079. X                        if (n <= 0)
  1080. X                                n = 1;
  1081. X                        cmd_exec();
  1082. X                        jump_back(n);
  1083. X                        break;
  1084. X
  1085. X                case 'p':
  1086. X                case '%':
  1087. X                        /*
  1088. X                         * Go to a specified percentage into the file.
  1089. X                         */
  1090. X                        n = cmd_int();
  1091. X                        if (n < 0)
  1092. X                                n = 0;
  1093. X                        if (n > 100)
  1094. X                                n = 100;
  1095. X                        cmd_exec();
  1096. X                        jump_percent(n);
  1097. X                        break;
  1098. X
  1099. X                case 'G':
  1100. X#ifdef AMIGA
  1101. X                case '>':
  1102. X#endif
  1103. X                        /*
  1104. X                         * Go to line N, default end of file.
  1105. X                         */
  1106. X                        n = cmd_int();
  1107. X                        cmd_exec();
  1108. X                        if (n <= 0)
  1109. X                                jump_forw();
  1110. X                        else
  1111. X                                jump_back(n);
  1112. X                        break;
  1113. X
  1114. X                case '=':
  1115. X                case CONTROL('G'):
  1116. X                        /*
  1117. X                         * Print file name, etc.
  1118. X                         */
  1119. X                        error(eq_message());
  1120. X                        break;
  1121. X
  1122. X                case 'V':
  1123. X                        /*
  1124. X                         * Print version number, without the "@(#)".
  1125. X                         */
  1126. X                        error(version+4);
  1127. X                        break;
  1128. X
  1129. X                case 'q':
  1130. X#ifdef AMIGA
  1131. X                case 'Q':
  1132. X#endif
  1133. X                        /*
  1134. X                         * Exit.
  1135. X                         */
  1136. X                        /*setjmp(main_loop);*/
  1137. X                        quit();
  1138. X
  1139. X#ifdef AMIGA
  1140. X                case CONTROL('S'):
  1141. X                        c = '/';
  1142. X                        /* v v v  fall through  v v v */
  1143. X#endif
  1144. X                case '/':
  1145. X                case '?':
  1146. X                        /*
  1147. X                         * Search for a pattern.
  1148. X                         * Accept chars of the pattern until \n.
  1149. X                         */
  1150. X                        n = cmd_int();
  1151. X                        if (n <= 0)
  1152. X                                n = 1;
  1153. X                        start_mcc(c);
  1154. X                        last_mcc = c;
  1155. X                        c = getcc();
  1156. X                        goto again;
  1157. X
  1158. X                case 'n':
  1159. X                        /*
  1160. X                         * Repeat previous search.
  1161. X                         */
  1162. X                        n = cmd_int();
  1163. X                        if (n <= 0)
  1164. X                                n = 1;
  1165. X                        start_mcc(last_mcc);
  1166. X                        cmd_exec();
  1167. X                        search(mcc, (char *)NULL, n);
  1168. X                        mcc = 0;
  1169. X                        break;
  1170. X#ifdef AMIGA
  1171. X
  1172. X                /* I didn't want a separate help file because people might
  1173. X                        not donwload it and then where would we be */
  1174. X                case 'H':
  1175. X                case 'h':
  1176. X                        screen_trashed = 1;
  1177. X                        help();
  1178. X                        break;
  1179. X#else
  1180. X                case 'H':
  1181. X                        /*
  1182. X                         * Help.
  1183. X                         */
  1184. X                        lower_left();
  1185. X                        clear_eol();
  1186. X                        putstr("help");
  1187. X                        cmd_exec();
  1188. X                        help();
  1189. X                        screen_trashed = 1;
  1190. X                        break;
  1191. X#endif
  1192. X
  1193. X                case 'E':
  1194. X                        /*
  1195. X                         * Edit a new file.  Get the filename.
  1196. X                         */
  1197. X                        cmd_reset();
  1198. X                        start_mcc('E');
  1199. X                        putstr("xamine: ");     /* This looks nicer */
  1200. X                        cmd_col += 8;
  1201. X                        c = getcc();
  1202. X                        goto again;
  1203. X
  1204. X                case '!':
  1205. X#if SHELL_ESCAPE
  1206. X                        /*
  1207. X                         * Shell escape.
  1208. X                         */
  1209. X                        cmd_reset();
  1210. X                        start_mcc('!');
  1211. X                        c = getcc();
  1212. X                        goto again;
  1213. X#else
  1214. X                        error("Command not available");
  1215. X                        break;
  1216. X#endif
  1217. X
  1218. X                case 'v':
  1219. X#if EDITOR
  1220. X                        if (ispipe)
  1221. X                        {
  1222. X                                error("Cannot edit standard input");
  1223. X                                break;
  1224. X                        }
  1225. X                        sprintf(cmdbuf, "%s %s", editor, current_file);
  1226. X                        lsystem(cmdbuf);
  1227. X                        ch_init(0);
  1228. X                        screen_trashed = 1;
  1229. X                        break;
  1230. X#else
  1231. X                        error("Command not available");
  1232. X                        break;
  1233. X#endif
  1234. X
  1235. X                case 'N':
  1236. X                        /*
  1237. X                         * Examine next file.
  1238. X                         */
  1239. X                        n = cmd_int();
  1240. X                        if (n <= 0)
  1241. X                                n = 1;
  1242. X                        next_file(n);
  1243. X                        break;
  1244. X
  1245. X                case 'P':
  1246. X                        /*
  1247. X                         * Examine previous file.
  1248. X                         */
  1249. X                        n = cmd_int();
  1250. X                        if (n <= 0)
  1251. X                                n = 1;
  1252. X                        prev_file(n);
  1253. X                        break;
  1254. X
  1255. X                case '-':
  1256. X                        /*
  1257. X                         * Toggle a flag setting.
  1258. X                         */
  1259. X                        cmd_reset();
  1260. X                        start_mcc('-');
  1261. X                        c = getcc();
  1262. X                        goto again;
  1263. X
  1264. X                case '+':
  1265. X                        cmd_reset();
  1266. X                        start_mcc('+');
  1267. X                        c = getcc();
  1268. X                        goto again;
  1269. X
  1270. X                case 'm':
  1271. X                        /*
  1272. X                         * Set a mark.
  1273. X                         */
  1274. X                        lower_left();
  1275. X                        clear_eol();
  1276. X                        putstr("mark: ");
  1277. X                        c = getcc();
  1278. X                        if (c == erase_char || c == kill_char)
  1279. X                                break;
  1280. X                        setmark(c);
  1281. X                        break;
  1282. X
  1283. X                case '\'':
  1284. X                        /*
  1285. X                         * Go to a mark.
  1286. X                         */
  1287. X                        lower_left();
  1288. X                        clear_eol();
  1289. X                        putstr("goto mark: ");
  1290. X                        c = getcc();
  1291. X                        if (c == erase_char || c == kill_char)
  1292. X                                break;
  1293. X                        gomark(c);
  1294. X                        break;
  1295. X
  1296. X                default:
  1297. X#ifdef AMIGA
  1298. X                if (++user_errors > 2) {
  1299. X                   lower_left();
  1300. X                   clear_eol();
  1301. X                   so_enter();
  1302. X                   putchr(c);
  1303. X                   putstr(" is an Invalid Command, Type H for help, or Q to quit");
  1304. X                   so_exit();
  1305. X                   /* give him some time to read it, and three more trys */
  1306. X                   Delay(3 * 50L);
  1307. X                   user_errors = 0;
  1308. X                } else
  1309. X#endif
  1310. X                        bell();
  1311. X                        break;
  1312. X                }
  1313. X        }
  1314. X}
  1315. END_OF_FILE
  1316. if test 25166 -ne `wc -c <'Less1.4Z/src/command.c'`; then
  1317.     echo shar: \"'Less1.4Z/src/command.c'\" unpacked with wrong size!
  1318. fi
  1319. # end of 'Less1.4Z/src/command.c'
  1320. fi
  1321. echo shar: End of archive 5 \(of 7\).
  1322. cp /dev/null ark5isdone
  1323. MISSING=""
  1324. for I in 1 2 3 4 5 6 7 ; do
  1325.     if test ! -f ark${I}isdone ; then
  1326.     MISSING="${MISSING} ${I}"
  1327.     fi
  1328. done
  1329. if test "${MISSING}" = "" ; then
  1330.     echo You have unpacked all 7 archives.
  1331.     rm -f ark[1-9]isdone
  1332. else
  1333.     echo You still need to unpack the following archives:
  1334.     echo "        " ${MISSING}
  1335. fi
  1336. ##  End of shell archive.
  1337. exit 0
  1338. -- 
  1339. Mail submissions (sources or binaries) to <amiga@uunet.uu.net>.
  1340. Mail comments to the moderator at <amiga-request@uunet.uu.net>.
  1341. Post requests for sources, and general discussion to comp.sys.amiga.misc.
  1342.