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- Newsgroups: comp.sources.misc
- From: rsalz@osf.org (Rich $alz)
- Subject: v31i071: editline - Small line-editing library, Part01/01
- Message-ID: <1992Aug2.030527.9953@sparky.imd.sterling.com>
- X-Md4-Signature: 1f497d9e04faa0d64f2c0eedc53941b7
- Date: Sun, 2 Aug 1992 03:05:27 GMT
- Approved: kent@sparky.imd.sterling.com
-
- Submitted-by: rsalz@osf.org (Rich $alz)
- Posting-number: Volume 31, Issue 71
- Archive-name: editline/part01
- Environment: UNIX, OS-9
-
- This is a line-editing library. It can be linked into almost any
- program to provide command-line editing and recall.
-
- It is call-compatible with the FSF readline library, but it is a
- fraction of the size (and offers fewer features). It does not use
- standard I/O. It is distributed under a "C News-like" copyright.
-
- Configuration is done in the Makefile. Type "make testit" to get
- a small slow shell for testing.
-
- An earlier version was distributed with Byron's rc. Principal
- changes over that version include:
- Faster.
- Is eight-bit clean (thanks to brendan@cs.widener.edu)
- Written in K&R C, but ANSI compliant (gcc all warnings)
- Propagates EOF properly; rc trip test now passes
- Doesn't need or use or provide memmove.
- More robust
- Calling sequence changed to be compatible with readline.
- Test program, new manpage, better configuration
- More system-independant; includes Unix and OS-9 support.
-
- Enjoy,
- Rich $alz
- <rsalz@osf.org>
- #! /bin/sh
- # This is a shell archive. Remove anything before this line, then feed it
- # into a shell via "sh file" or similar. To overwrite existing files,
- # type "sh file -c".
- # The tool that generated this appeared in the comp.sources.unix newsgroup;
- # send mail to comp-sources-unix@uunet.uu.net if you want that tool.
- # Contents: README Makefile editline.3 editline.h unix.h editline.c
- # complete.c sysunix.c testit.c Make.os9 os9.h sysos9.c
- # Wrapped by rsalz@earth on Thu Jul 30 11:41:20 1992
- PATH=/bin:/usr/bin:/usr/ucb ; export PATH
- echo If this archive is complete, you will see the following message:
- echo ' "shar: End of archive."'
- if test -f 'README' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'README'\"
- else
- echo shar: Extracting \"'README'\" \(1934 characters\)
- sed "s/^X//" >'README' <<'END_OF_FILE'
- X$Revision: 1.5 $
- X
- XThis is a line-editing library. It can be linked into almost any
- Xprogram to provide command-line editing and recall.
- X
- XIt is call-compatible with the FSF readline library, but it is a
- Xfraction of the size (and offers fewer features). It does not use
- Xstandard I/O. It is distributed under a "C News-like" copyright.
- X
- XConfiguration is done in the Makefile. Type "make testit" to get
- Xa small slow shell for testing.
- X
- XAn earlier version was distributed with Byron's rc. Principal
- Xchanges over that version include:
- X Faster.
- X Is eight-bit clean (thanks to brendan@cs.widener.edu)
- X Written in K&R C, but ANSI compliant (gcc all warnings)
- X Propagates EOF properly; rc trip test now passes
- X Doesn't need or use or provide memmove.
- X More robust
- X Calling sequence changed to be compatible with readline.
- X Test program, new manpage, better configuration
- X More system-independant; includes Unix and OS-9 support.
- X
- XEnjoy,
- X Rich $alz
- X <rsalz@osf.org>
- X
- X Copyright 1992 Simmule Turner and Rich Salz. All rights reserved.
- X
- X This software is not subject to any license of the American Telephone
- X and Telegraph Company or of the Regents of the University of California.
- X
- X Permission is granted to anyone to use this software for any purpose on
- X any computer system, and to alter it and redistribute it freely, subject
- X to the following restrictions:
- X 1. The authors are not responsible for the consequences of use of this
- X software, no matter how awful, even if they arise from flaws in it.
- X 2. The origin of this software must not be misrepresented, either by
- X explicit claim or by omission. Since few users ever read sources,
- X credits must appear in the documentation.
- X 3. Altered versions must be plainly marked as such, and must not be
- X misrepresented as being the original software. Since few users
- X ever read sources, credits must appear in the documentation.
- X 4. This notice may not be removed or altered.
- END_OF_FILE
- if test 1934 -ne `wc -c <'README'`; then
- echo shar: \"'README'\" unpacked with wrong size!
- fi
- # end of 'README'
- fi
- if test -f 'Makefile' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'Makefile'\"
- else
- echo shar: Extracting \"'Makefile'\" \(1836 characters\)
- sed "s/^X//" >'Makefile' <<'END_OF_FILE'
- X## $Revision: 1.3 $
- X##
- X## Unix makefile for editline library.
- X##
- X
- X## Set your options:
- X## -DANSI_ARROWS ANSI arrows keys work like emacs.
- X## -DHAVE_STDLIB Have <stdlib.h>.
- X## -DHAVE_TCGETATTR Have tcgetattr(), tcsetattr().
- X## -DHIDE Make static functions static (non debug).
- X## -DHIST_SIZE=n History size.
- X## -DNEED_STRDUP Don't have strdup().
- X## -DUNIQUE_HISTORY Don't save command if same as last one.
- X## -DUSE_DIRENT Use <dirent.h>, not <sys/dir.h>?
- X## -DUSE_TERMCAP Use the termcap library for terminal size
- X## see LDFLAGS, below, if you set this.
- X## -DNEED_PERROR Don't have perror() (used in testit)
- XDEFS = -DANSI_ARROWS -DHAVE_TCGETATTR -DHIDE -DUSE_DIRENT -DSYS_UNIX
- X
- X## Set your C compiler:
- XWARN = -Wall -Wshadow -Wpointer-arith -Wcast-qual -Wwrite-strings \
- X -Wunused -Wcomment -Wswitch
- XCC = gcc -ansi $(WARN)
- X#CC = cc
- XCFLAGS = $(DEFS) -O -g
- X
- X## If you have -DUSE_TERMCAP, set this as appropriate:
- X#LDFLAGS = -ltermlib
- X#LDFLAGS = -ltermcap
- X
- X## Set ranlib as appropriate:
- XRANLIB = ranlib
- X#RANLIB = echo
- X
- X## End of configuration.
- X
- XSOURCES = editline.c complete.c sysunix.c
- XOBJECTS = editline.o complete.o sysunix.o
- XSHARFILES = README Makefile editline.3 editline.h unix.h editline.c \
- X complete.c sysunix.c testit.c \
- X Make.os9 os9.h sysos9.c
- X
- Xall: libedit.a
- X
- Xtestit: testit.c libedit.a
- X $(CC) $(CFLAGS) -o testit testit.c libedit.a $(LDFLAGS)
- X
- Xshar: $(SHARFILES)
- X shar $(SHARFILES) >shar
- X
- Xclean:
- X rm -f *.[oa] testit foo core tags lint lint.all a.out shar
- X
- Xlint: testit
- X lint -a -b -u -x $(DEFS) $(SOURCES) testit.c >lint.all
- X sed -e '/warning: function prototype not in scope/d' \
- X -e '/warning: old style argument declaration/'d \
- X -e '/mix of old and new style function declaration/'d \
- X <lint.all >lint
- X
- Xlibedit.a: $(OBJECTS)
- X @rm -f $@
- X ar r $@ $(OBJECTS)
- X $(RANLIB) $@
- X
- X$(OBJECTS): editline.h
- END_OF_FILE
- if test 1836 -ne `wc -c <'Makefile'`; then
- echo shar: \"'Makefile'\" unpacked with wrong size!
- fi
- # end of 'Makefile'
- fi
- if test -f 'editline.3' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'editline.3'\"
- else
- echo shar: Extracting \"'editline.3'\" \(5281 characters\)
- sed "s/^X//" >'editline.3' <<'END_OF_FILE'
- X.\" $Revision: 1.1 $
- X.TH EDITLINE 3
- X.SH NAME
- Xeditline \- command-line editing library with history
- X.SH SYNOPSIS
- X.nf
- X.B "char *"
- X.B "readline(prompt)"
- X.B " char *prompt;"
- X
- X.B "void"
- X.B "add_history(line)"
- X.B " char *line;"
- X.fi
- X.SH DESCRIPTION
- X.I Editline
- Xis a library that provides an line-editing interface with text recall.
- XIt is intended to be compatible with the
- X.I readline
- Xlibrary provided by the Free Software Foundation, but much smaller.
- XThe bulk of this manual page describes the user interface.
- X.PP
- XThe
- X.I readline
- Xroutine returns a line of text with the trailing newline removed.
- XThe data is returned in a buffer allocated with
- X.IR malloc (3),
- Xso the space should be released with
- X.IR free (3)
- Xwhen the calling program is done with it.
- XBefore accepting input from the user, the specified
- X.I prompt
- Xis displayed on the terminal.
- X.PP
- XThe
- X.I add_history
- Xroutine makes a copy of the specified
- X.I line
- Xand adds it to the internal history list.
- X.SS "User Interface"
- XA program that uses this library provides a simple emacs-like editing
- Xinterface to its users.
- XA line may be edited before it is sent to the calling program by typing either
- Xcontrol characters or escape sequences.
- XA control character, shown as a caret followed by a letter, is typed by
- Xholding down the ``control'' key while the letter is typed.
- XFor example, ``^A'' is a control-A.
- XAn escape sequence is entered by typing the ``escape'' key followed by one or
- Xmore characters.
- XThe escape key is abbreviated as ``ESC.''
- XNote that unlike control keys, case matters in escape sequences; ``ESC\ F''
- Xis not the same as ``ESC\ f''.
- X.PP
- XAn editing command may be typed anywhere on the line, not just at the
- Xbeginning.
- XIn addition, a return may also be typed anywhere on the line, not just at
- Xthe end.
- X.PP
- XMost editing commands may be given a repeat count,
- X.IR n ,
- Xwhere
- X.I n
- Xis a number.
- XTo enter a repeat count, type the escape key, the number, and then
- Xthe command to execute.
- XFor example, ``ESC\ 4\ ^f'' moves forward four characters.
- XIf a command may be given a repeat count then the text ``[n]'' is given at the
- Xend of its description.
- X.PP
- XThe following control characters are accepted:
- X.RS
- X.nf
- X.ta \w'ESC DEL 'u
- X^A Move to the beginning of the line
- X^B Move left (backwards) [n]
- X^D Delete character [n]
- X^E Move to end of line
- X^F Move right (forwards) [n]
- X^G Ring the bell
- X^H Delete character before cursor (backspace key) [n]
- X^I Complete filename (tab key); see below
- X^J Done with line (return key)
- X^K Kill to end of line (or column [n])
- X^L Redisplay line
- X^M Done with line (alternate return key)
- X^N Get next line from history [n]
- X^P Get previous line from history [n]
- X^R Search backward (forward if [n]) through history for text;
- X\& must start line if text begins with an uparrow
- X^T Transpose characters
- X^V Insert next character, even if it is an edit command
- X^W Wipe to the mark
- X^X^X Exchange current location and mark
- X^Y Yank back last killed text
- X^[ Start an escape sequence (escape key)
- X^]c Move forward to next character ``c''
- X^? Delete character before cursor (delete key) [n]
- X.fi
- X.RE
- X.PP
- XThe following escape sequences are provided.
- X.RS
- X.nf
- X.ta \w'ESC DEL 'u
- XESC\ ^H Delete previous word (backspace key) [n]
- XESC\ DEL Delete previous word (delete key) [n]
- XESC\ SP Set the mark (space key); see ^X^X and ^Y above
- XESC\ \. Get the last (or [n]'th) word from previous line
- XESC\ \? Show possible completions; see below
- XESC\ < Move to start of history
- XESC\ > Move to end of history
- XESC\ b Move backward a word [n]
- XESC\ d Delete word under cursor [n]
- XESC\ f Move forward a word [n]
- XESC\ l Make word lowercase [n]
- XESC\ u Make word uppercase [n]
- XESC\ y Yank back last killed text
- XESC\ v Show library version
- XESC\ w Make area up to mark yankable
- XESC\ nn Set repeat count to the number nn
- XESC\ C Read from environment variable ``_C_'', where C is
- X\& an uppercase letter
- X.fi
- X.RE
- X.PP
- XThe
- X.I editline
- Xlibrary has a small macro facility.
- XIf you type the escape key followed by an uppercase letter,
- X.IR C ,
- Xthen the contents of the environment variable
- X.I _C_
- Xare read in as if you had typed them at the keyboard.
- XFor example, if the variable
- X.I _L_
- Xcontains the following:
- X.RS
- X^A^Kecho '^V^[[H^V^[[2J'^M
- X.RE
- XThen typing ``ESC L'' will move to the beginning of the line, kill the
- Xentire line, enter the echo command needed to clear the terminal (if your
- Xterminal is like a VT-100), and send the line back to the shell.
- X.PP
- XThe
- X.I editline
- Xlibrary also does filename completion.
- XSuppose the root directory has the following files in it:
- X.RS
- X.nf
- X.ta \w'core 'u
- Xbin vmunix
- Xcore vmunix.old
- X.fi
- X.RE
- XIf you type ``rm\ /v'' and then the tab key.
- X.I Editline
- Xwill then finish off as much of the name as possible by adding ``munix''.
- XBecause the name is not unique, it will then beep.
- XIf you type the escape key and a question mark, it will display the
- Xtwo choices.
- XIf you then type a period and a tab, the library will finish off the filename
- Xfor you:
- X.RS
- X.nf
- X.RI "rm /v[TAB]" munix .TAB old
- X.fi
- X.RE
- XThe tab key is shown by ``[TAB]'' and the automatically-entered text
- Xis shown in italics.
- X.SH "BUGS AND LIMITATIONS"
- XCannot handle lines more than 80 columns.
- X.SH AUTHORS
- XSimmule R. Turner <uunet.uu.net!capitol!sysgo!simmy>
- Xand Rich $alz <rsalz@osf.org>.
- XOriginal manual page by DaviD W. Sanderson <dws@ssec.wisc.edu>.
- END_OF_FILE
- if test 5281 -ne `wc -c <'editline.3'`; then
- echo shar: \"'editline.3'\" unpacked with wrong size!
- fi
- # end of 'editline.3'
- fi
- if test -f 'editline.h' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'editline.h'\"
- else
- echo shar: Extracting \"'editline.h'\" \(1622 characters\)
- sed "s/^X//" >'editline.h' <<'END_OF_FILE'
- X/* $Revision: 1.3 $
- X**
- X** Internal header file for editline library.
- X*/
- X#include <stdio.h>
- X#if defined(HAVE_STDLIB)
- X#include <stdlib.h>
- X#include <string.h>
- X#endif /* defined(HAVE_STDLIB) */
- X#if defined(SYS_UNIX)
- X#include "unix.h"
- X#endif /* defined(SYS_UNIX) */
- X#if defined(SYS_OS9)
- X#include "os9.h"
- X#endif /* defined(SYS_OS9) */
- X
- X#if !defined(SIZE_T)
- X#define SIZE_T unsigned int
- X#endif /* !defined(SIZE_T) */
- X
- Xtypedef unsigned char CHAR;
- X
- X#if defined(HIDE)
- X#define STATIC static
- X#else
- X#define STATIC /* NULL */
- X#endif /* !defined(HIDE) */
- X
- X#if !defined(CONST)
- X#if defined(__STDC__)
- X#define CONST const
- X#else
- X#define CONST
- X#endif /* defined(__STDC__) */
- X#endif /* !defined(CONST) */
- X
- X
- X#define MEM_INC 64
- X#define SCREEN_INC 256
- X
- X#define DISPOSE(p) free((char *)(p))
- X#define NEW(T, c) \
- X ((T *)malloc((unsigned int)(sizeof (T) * (c))))
- X#define RENEW(p, T, c) \
- X (p = (T *)realloc((char *)(p), (unsigned int)(sizeof (T) * (c))))
- X#define COPYFROMTO(new, p, len) \
- X (void)memcpy((char *)(new), (char *)(p), (int)(len))
- X
- X
- X/*
- X** Variables and routines internal to this package.
- X*/
- Xextern int rl_eof;
- Xextern int rl_erase;
- Xextern int rl_intr;
- Xextern int rl_kill;
- Xextern int rl_quit;
- Xextern char *rl_complete();
- Xextern int rl_list_possib();
- Xextern void rl_ttyset();
- Xextern void rl_add_slash();
- X
- X#if !defined(HAVE_STDLIB)
- Xextern char *getenv();
- Xextern char *malloc();
- Xextern char *realloc();
- Xextern char *memcpy();
- Xextern char *strcat();
- Xextern char *strchr();
- Xextern char *strrchr();
- Xextern char *strcpy();
- Xextern char *strdup();
- Xextern int strcmp();
- Xextern int strlen();
- Xextern int strncmp();
- X#endif /* !defined(HAVE_STDLIB) */
- END_OF_FILE
- if test 1622 -ne `wc -c <'editline.h'`; then
- echo shar: \"'editline.h'\" unpacked with wrong size!
- fi
- # end of 'editline.h'
- fi
- if test -f 'unix.h' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'unix.h'\"
- else
- echo shar: Extracting \"'unix.h'\" \(432 characters\)
- sed "s/^X//" >'unix.h' <<'END_OF_FILE'
- X/* $Revision: 1.1 $
- X**
- X** Editline system header file for Unix.
- X*/
- X
- X#define CRLF "\r\n"
- X#define FORWARD STATIC
- X
- X#include <sys/types.h>
- X#include <sys/stat.h>
- X
- X#if defined(USE_DIRENT)
- X#include <dirent.h>
- Xtypedef struct dirent DIRENTRY;
- X#else
- X#include <sys/dir.h>
- Xtypedef struct direct DIRENTRY;
- X#endif /* defined(USE_DIRENT) */
- X
- X#if !defined(S_ISDIR)
- X#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
- X#endif /* !defined(S_ISDIR) */
- END_OF_FILE
- if test 432 -ne `wc -c <'unix.h'`; then
- echo shar: \"'unix.h'\" unpacked with wrong size!
- fi
- # end of 'unix.h'
- fi
- if test -f 'editline.c' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'editline.c'\"
- else
- echo shar: Extracting \"'editline.c'\" \(22520 characters\)
- sed "s/^X//" >'editline.c' <<'END_OF_FILE'
- X/* $Revision: 1.4 $
- X**
- X** Main editing routines for editline library.
- X*/
- X#include "editline.h"
- X#include <ctype.h>
- X
- X/*
- X** Manifest constants.
- X*/
- X#define SCREEN_WIDTH 80
- X#define SCREEN_ROWS 24
- X#define NO_ARG (-1)
- X#define DEL 127
- X#define CTL(x) ((x) & 0x1F)
- X#define ISCTL(x) ((x) && (x) < ' ')
- X#define UNCTL(x) ((x) + 64)
- X#define META(x) ((x) | 0x80)
- X#define ISMETA(x) ((x) & 0x80)
- X#define UNMETA(x) ((x) & 0x7F)
- X#if !defined(HIST_SIZE)
- X#define HIST_SIZE 20
- X#endif /* !defined(HIST_SIZE) */
- X
- X/*
- X** Command status codes.
- X*/
- Xtypedef enum _STATUS {
- X CSdone, CSeof, CSmove, CSdispatch, CSstay
- X} STATUS;
- X
- X/*
- X** The type of case-changing to perform.
- X*/
- Xtypedef enum _CASE {
- X TOupper, TOlower
- X} CASE;
- X
- X/*
- X** Key to command mapping.
- X*/
- Xtypedef struct _KEYMAP {
- X CHAR Key;
- X STATUS (*Function)();
- X} KEYMAP;
- X
- X/*
- X** Command history structure.
- X*/
- Xtypedef struct _HISTORY {
- X int Size;
- X int Pos;
- X CHAR *Lines[HIST_SIZE];
- X} HISTORY;
- X
- X/*
- X** Globals.
- X*/
- Xint rl_eof;
- Xint rl_erase;
- Xint rl_intr;
- Xint rl_kill;
- X
- XSTATIC CHAR NIL[] = "";
- XSTATIC CONST CHAR *Input = NIL;
- XSTATIC CHAR *Line;
- XSTATIC CONST char *Prompt;
- XSTATIC CHAR *Yanked;
- XSTATIC char *Screen;
- XSTATIC char NEWLINE[]= CRLF;
- XSTATIC HISTORY H;
- Xint rl_quit;
- XSTATIC int Repeat;
- XSTATIC int End;
- XSTATIC int Mark;
- XSTATIC int OldPoint;
- XSTATIC int Point;
- XSTATIC int PushBack;
- XSTATIC int Pushed;
- XFORWARD KEYMAP Map[33];
- XFORWARD KEYMAP MetaMap[16];
- XSTATIC SIZE_T Length;
- XSTATIC SIZE_T ScreenCount;
- XSTATIC SIZE_T ScreenSize;
- XSTATIC char *backspace;
- XSTATIC int TTYwidth;
- XSTATIC int TTYrows;
- X
- X/* Display print 8-bit chars as `M-x' or as the actual 8-bit char? */
- Xint rl_meta_chars = 1;
- X
- X/*
- X** Declarations.
- X*/
- XSTATIC CHAR *editinput();
- Xextern int read();
- Xextern int write();
- X#if defined(USE_TERMCAP)
- Xextern char *getenv();
- Xextern char *tgetstr();
- Xextern int tgetent();
- X#endif /* defined(USE_TERMCAP) */
- X
- X/*
- X** TTY input/output functions.
- X*/
- X
- XSTATIC void
- XTTYflush()
- X{
- X if (ScreenCount) {
- X (void)write(1, Screen, ScreenCount);
- X ScreenCount = 0;
- X }
- X}
- X
- XSTATIC void
- XTTYput(c)
- X CHAR c;
- X{
- X Screen[ScreenCount] = c;
- X if (++ScreenCount >= ScreenSize - 1) {
- X ScreenSize += SCREEN_INC;
- X RENEW(Screen, char, ScreenSize);
- X }
- X}
- X
- XSTATIC void
- XTTYputs(p)
- X CHAR *p;
- X{
- X while (*p)
- X TTYput(*p++);
- X}
- X
- XSTATIC void
- XTTYshow(c)
- X CHAR c;
- X{
- X if (c == DEL) {
- X TTYput('^');
- X TTYput('?');
- X }
- X else if (ISCTL(c)) {
- X TTYput('^');
- X TTYput(UNCTL(c));
- X }
- X else if (rl_meta_chars && ISMETA(c)) {
- X TTYput('M');
- X TTYput('-');
- X TTYput(UNMETA(c));
- X }
- X else
- X TTYput(c);
- X}
- X
- XSTATIC void
- XTTYstring(p)
- X CHAR *p;
- X{
- X while (*p)
- X TTYshow(*p++);
- X}
- X
- XSTATIC unsigned int
- XTTYget()
- X{
- X CHAR c;
- X
- X TTYflush();
- X if (Pushed) {
- X Pushed = 0;
- X return PushBack;
- X }
- X if (*Input)
- X return *Input++;
- X return read(0, &c, (SIZE_T)1) == 1 ? c : EOF;
- X}
- X
- X#define TTYback() (backspace ? TTYputs((CHAR *)backspace) : TTYput('\b'))
- X
- XSTATIC void
- XTTYbackn(n)
- X int n;
- X{
- X while (--n >= 0)
- X TTYback();
- X}
- X
- XSTATIC void
- XTTYinfo()
- X{
- X static int init;
- X#if defined(USE_TERMCAP)
- X char *term;
- X char buff[2048];
- X char *bp;
- X#endif /* defined(USE_TERMCAP) */
- X#if defined(TIOCGWINSZ)
- X struct winsize W;
- X#endif /* defined(TIOCGWINSZ) */
- X
- X if (init) {
- X#if defined(TIOCGWINSZ)
- X /* Perhaps we got resized. */
- X if (ioctl(0, TIOCGWINSZ, &W) >= 0
- X && W.ws_col > 0 && W.ws_row > 0) {
- X TTYwidth = (int)W.ws_col;
- X TTYrows = (int)W.ws_row;
- X }
- X#endif /* defined(TIOCGWINSZ) */
- X return;
- X }
- X init++;
- X
- X TTYwidth = TTYrows = 0;
- X#if defined(USE_TERMCAP)
- X bp = &buff[0];
- X if ((term = getenv("TERM")) == NULL)
- X term = "dumb";
- X if (tgetent(buff, term) < 0) {
- X TTYwidth = SCREEN_WIDTH;
- X TTYrows = SCREEN_ROWS;
- X return;
- X }
- X backspace = tgetstr("le", &bp);
- X TTYwidth = tgetnum("co");
- X TTYrows = tgetnum("li");
- X#endif /* defined(USE_TERMCAP) */
- X
- X#if defined(TIOCGWINSZ)
- X if (ioctl(0, TIOCGWINSZ, &W) >= 0) {
- X TTYwidth = (int)W.ws_col;
- X TTYrows = (int)W.ws_row;
- X }
- X#endif /* defined(TIOCGWINSZ) */
- X
- X if (TTYwidth <= 0 || TTYrows <= 0) {
- X TTYwidth = SCREEN_WIDTH;
- X TTYrows = SCREEN_ROWS;
- X }
- X}
- X
- X
- X/*
- X** Print an array of words in columns.
- X*/
- XSTATIC void
- Xcolumns(ac, av)
- X int ac;
- X CHAR **av;
- X{
- X CHAR *p;
- X int i;
- X int j;
- X int k;
- X int len;
- X int skip;
- X int longest;
- X int cols;
- X
- X /* Find longest name, determine column count from that. */
- X for (longest = 0, i = 0; i < ac; i++)
- X if ((j = strlen((char *)av[i])) > longest)
- X longest = j;
- X cols = TTYwidth / (longest + 3);
- X
- X TTYputs((CHAR *)NEWLINE);
- X for (skip = ac / cols + 1, i = 0; i < skip; i++) {
- X for (j = i; j < ac; j += skip) {
- X for (p = av[j], len = strlen((char *)p), k = len; --k >= 0; p++)
- X TTYput(*p);
- X if (j + skip < ac)
- X while (++len < longest + 3)
- X TTYput(' ');
- X }
- X TTYputs((CHAR *)NEWLINE);
- X }
- X}
- X
- XSTATIC void
- Xreposition()
- X{
- X int i;
- X CHAR *p;
- X
- X TTYput('\r');
- X TTYputs((CHAR *)Prompt);
- X for (i = Point, p = Line; --i >= 0; p++)
- X TTYshow(*p);
- X}
- X
- XSTATIC void
- Xleft(Change)
- X STATUS Change;
- X{
- X TTYback();
- X if (Point) {
- X if (ISCTL(Line[Point - 1]))
- X TTYback();
- X else if (rl_meta_chars && ISMETA(Line[Point - 1])) {
- X TTYback();
- X TTYback();
- X }
- X }
- X if (Change == CSmove)
- X Point--;
- X}
- X
- XSTATIC void
- Xright(Change)
- X STATUS Change;
- X{
- X TTYshow(Line[Point]);
- X if (Change == CSmove)
- X Point++;
- X}
- X
- XSTATIC STATUS
- Xring_bell()
- X{
- X TTYput('\07');
- X TTYflush();
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xdo_macro(c)
- X unsigned int c;
- X{
- X CHAR name[4];
- X
- X name[0] = '_';
- X name[1] = c;
- X name[2] = '_';
- X name[3] = '\0';
- X
- X if ((Input = (CHAR *)getenv((char *)name)) == NULL) {
- X Input = NIL;
- X return ring_bell();
- X }
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xdo_forward(move)
- X STATUS move;
- X{
- X int i;
- X CHAR *p;
- X
- X i = 0;
- X do {
- X p = &Line[Point];
- X for ( ; Point < End && (*p == ' ' || !isalnum(*p)); Point++, p++)
- X if (move == CSmove)
- X right(CSstay);
- X
- X for (; Point < End && isalnum(*p); Point++, p++)
- X if (move == CSmove)
- X right(CSstay);
- X
- X if (Point == End)
- X break;
- X } while (++i < Repeat);
- X
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xdo_case(type)
- X CASE type;
- X{
- X int i;
- X int end;
- X int count;
- X CHAR *p;
- X
- X (void)do_forward(CSstay);
- X if (OldPoint != Point) {
- X if ((count = Point - OldPoint) < 0)
- X count = -count;
- X Point = OldPoint;
- X if ((end = Point + count) > End)
- X end = End;
- X for (i = Point, p = &Line[i]; i < end; i++, p++) {
- X if (type == TOupper) {
- X if (islower(*p))
- X *p = toupper(*p);
- X }
- X else if (isupper(*p))
- X *p = tolower(*p);
- X right(CSmove);
- X }
- X }
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xcase_down_word()
- X{
- X return do_case(TOlower);
- X}
- X
- XSTATIC STATUS
- Xcase_up_word()
- X{
- X return do_case(TOupper);
- X}
- X
- XSTATIC void
- Xceol()
- X{
- X int extras;
- X int i;
- X CHAR *p;
- X
- X for (extras = 0, i = Point, p = &Line[i]; i <= End; i++, p++) {
- X TTYput(' ');
- X if (ISCTL(*p)) {
- X TTYput(' ');
- X extras++;
- X }
- X else if (rl_meta_chars && ISMETA(*p)) {
- X TTYput(' ');
- X TTYput(' ');
- X extras += 2;
- X }
- X }
- X
- X for (i += extras; i > Point; i--)
- X TTYback();
- X}
- X
- XSTATIC void
- Xclear_line()
- X{
- X Point = -strlen(Prompt);
- X TTYput('\r');
- X ceol();
- X Point = 0;
- X End = 0;
- X Line[0] = '\0';
- X}
- X
- XSTATIC STATUS
- Xinsert_string(p)
- X CHAR *p;
- X{
- X SIZE_T len;
- X int i;
- X CHAR *new;
- X CHAR *q;
- X
- X len = strlen((char *)p);
- X if (End + len >= Length) {
- X if ((new = NEW(CHAR, Length + len + MEM_INC)) == NULL)
- X return CSstay;
- X if (Length) {
- X COPYFROMTO(new, Line, Length);
- X DISPOSE(Line);
- X }
- X Line = new;
- X Length += len + MEM_INC;
- X }
- X
- X for (q = &Line[Point], i = End - Point; --i >= 0; )
- X q[len + i] = q[i];
- X COPYFROMTO(&Line[Point], p, len);
- X End += len;
- X Line[End] = '\0';
- X TTYstring(&Line[Point]);
- X Point += len;
- X
- X return Point == End ? CSstay : CSmove;
- X}
- X
- X
- XSTATIC CHAR *
- Xnext_hist()
- X{
- X return H.Pos >= H.Size - 1 ? NULL : H.Lines[++H.Pos];
- X}
- X
- XSTATIC CHAR *
- Xprev_hist()
- X{
- X return H.Pos == 0 ? NULL : H.Lines[--H.Pos];
- X}
- X
- XSTATIC STATUS
- Xdo_insert_hist(p)
- X CHAR *p;
- X{
- X if (p == NULL)
- X return ring_bell();
- X Point = 0;
- X reposition();
- X ceol();
- X End = 0;
- X return insert_string(p);
- X}
- X
- XSTATIC STATUS
- Xdo_hist(move)
- X CHAR *(*move)();
- X{
- X CHAR *p;
- X int i;
- X
- X i = 0;
- X do {
- X if ((p = (*move)()) == NULL)
- X return ring_bell();
- X } while (++i < Repeat);
- X return do_insert_hist(p);
- X}
- X
- XSTATIC STATUS
- Xh_next()
- X{
- X return do_hist(next_hist);
- X}
- X
- XSTATIC STATUS
- Xh_prev()
- X{
- X return do_hist(prev_hist);
- X}
- X
- XSTATIC STATUS
- Xh_first()
- X{
- X return do_insert_hist(H.Lines[H.Pos = 0]);
- X}
- X
- XSTATIC STATUS
- Xh_last()
- X{
- X return do_insert_hist(H.Lines[H.Pos = H.Size - 1]);
- X}
- X
- X/*
- X** Return zero if pat appears as a substring in text.
- X*/
- XSTATIC int
- Xsubstrcmp(text, pat, len)
- X char *text;
- X char *pat;
- X int len;
- X{
- X CHAR c;
- X
- X if ((c = *pat) == '\0')
- X return *text == '\0';
- X for ( ; *text; text++)
- X if (*text == c && strncmp(text, pat, len) == 0)
- X return 0;
- X return 1;
- X}
- X
- XSTATIC CHAR *
- Xsearch_hist(search, move)
- X CHAR *search;
- X CHAR *(*move)();
- X{
- X static CHAR *old_search;
- X int len;
- X int pos;
- X int (*match)();
- X char *pat;
- X
- X /* Save or get remembered search pattern. */
- X if (search && *search) {
- X if (old_search)
- X DISPOSE(old_search);
- X old_search = (CHAR *)strdup((char *)search);
- X }
- X else {
- X if (old_search == NULL || *old_search == '\0')
- X return NULL;
- X search = old_search;
- X }
- X
- X /* Set up pattern-finder. */
- X if (*search == '^') {
- X match = strncmp;
- X pat = (char *)(search + 1);
- X }
- X else {
- X match = substrcmp;
- X pat = (char *)search;
- X }
- X len = strlen(pat);
- X
- X for (pos = H.Pos; (*move)() != NULL; )
- X if ((*match)((char *)H.Lines[H.Pos], pat, len) == 0)
- X return H.Lines[H.Pos];
- X H.Pos = pos;
- X return NULL;
- X}
- X
- XSTATIC STATUS
- Xh_search()
- X{
- X static int Searching;
- X CONST char *old_prompt;
- X CHAR *(*move)();
- X CHAR *p;
- X
- X if (Searching)
- X return ring_bell();
- X Searching = 1;
- X
- X clear_line();
- X old_prompt = Prompt;
- X Prompt = "Search: ";
- X TTYputs((CHAR *)Prompt);
- X move = Repeat == NO_ARG ? prev_hist : next_hist;
- X p = search_hist(editinput(), move);
- X clear_line();
- X Prompt = old_prompt;
- X TTYputs((CHAR *)Prompt);
- X
- X Searching = 0;
- X return do_insert_hist(p);
- X}
- X
- XSTATIC STATUS
- Xfd_char()
- X{
- X int i;
- X
- X i = 0;
- X do {
- X if (Point >= End)
- X break;
- X right(CSmove);
- X } while (++i < Repeat);
- X return CSstay;
- X}
- X
- XSTATIC void
- Xsave_yank(begin, i)
- X int begin;
- X int i;
- X{
- X if (Yanked) {
- X DISPOSE(Yanked);
- X Yanked = NULL;
- X }
- X
- X if (i < 1)
- X return;
- X
- X if ((Yanked = NEW(CHAR, (SIZE_T)i + 1)) != NULL) {
- X COPYFROMTO(Yanked, &Line[begin], i);
- X Yanked[i] = '\0';
- X }
- X}
- X
- XSTATIC STATUS
- Xdelete_string(count)
- X int count;
- X{
- X int i;
- X CHAR *p;
- X
- X if (count <= 0 || End == Point)
- X return ring_bell();
- X
- X if (count == 1 && Point == End - 1) {
- X /* Optimize common case of delete at end of line. */
- X End--;
- X p = &Line[Point];
- X i = 1;
- X TTYput(' ');
- X if (ISCTL(*p)) {
- X i = 2;
- X TTYput(' ');
- X }
- X else if (rl_meta_chars && ISMETA(*p)) {
- X i = 3;
- X TTYput(' ');
- X TTYput(' ');
- X }
- X TTYbackn(i);
- X *p = '\0';
- X return CSmove;
- X }
- X if (Point + count > End && (count = End - Point) <= 0)
- X return CSstay;
- X
- X if (count > 1)
- X save_yank(Point, count);
- X
- X for (p = &Line[Point], i = End - (Point + count) + 1; --i >= 0; p++)
- X p[0] = p[count];
- X ceol();
- X End -= count;
- X TTYstring(&Line[Point]);
- X return CSmove;
- X}
- X
- XSTATIC STATUS
- Xbk_char()
- X{
- X int i;
- X
- X i = 0;
- X do {
- X if (Point == 0)
- X break;
- X left(CSmove);
- X } while (++i < Repeat);
- X
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xbk_del_char()
- X{
- X int i;
- X
- X i = 0;
- X do {
- X if (Point == 0)
- X break;
- X left(CSmove);
- X } while (++i < Repeat);
- X
- X return delete_string(i);
- X}
- X
- XSTATIC STATUS
- Xredisplay()
- X{
- X TTYputs((CHAR *)NEWLINE);
- X TTYputs((CHAR *)Prompt);
- X TTYstring(Line);
- X return CSmove;
- X}
- X
- XSTATIC STATUS
- Xkill_line()
- X{
- X int i;
- X
- X if (Repeat != NO_ARG) {
- X if (Repeat < Point) {
- X i = Point;
- X Point = Repeat;
- X reposition();
- X (void)delete_string(i - Point);
- X }
- X else if (Repeat > Point) {
- X right(CSmove);
- X (void)delete_string(Repeat - Point - 1);
- X }
- X return CSmove;
- X }
- X
- X save_yank(Point, End - Point);
- X Line[Point] = '\0';
- X ceol();
- X End = Point;
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xinsert_char(c)
- X int c;
- X{
- X STATUS s;
- X CHAR buff[2];
- X CHAR *p;
- X CHAR *q;
- X int i;
- X
- X if (Repeat == NO_ARG || Repeat < 2) {
- X buff[0] = c;
- X buff[1] = '\0';
- X return insert_string(buff);
- X }
- X
- X if ((p = NEW(CHAR, Repeat + 1)) == NULL)
- X return CSstay;
- X for (i = Repeat, q = p; --i >= 0; )
- X *q++ = c;
- X *q = '\0';
- X Repeat = 0;
- X s = insert_string(p);
- X DISPOSE(p);
- X return s;
- X}
- X
- XSTATIC STATUS
- Xmeta()
- X{
- X unsigned int c;
- X KEYMAP *kp;
- X
- X if ((c = TTYget()) == EOF)
- X return CSeof;
- X#if defined(ANSI_ARROWS)
- X /* Also include VT-100 arrows. */
- X if (c == '[' || c == 'O')
- X switch (c = TTYget()) {
- X default: return ring_bell();
- X case EOF: return CSeof;
- X case 'A': return h_prev();
- X case 'B': return h_next();
- X case 'C': return fd_char();
- X case 'D': return bk_char();
- X }
- X#endif /* defined(ANSI_ARROWS) */
- X
- X if (isdigit(c)) {
- X for (Repeat = c - '0'; (c = TTYget()) != EOF && isdigit(c); )
- X Repeat = Repeat * 10 + c - '0';
- X Pushed = 1;
- X PushBack = c;
- X return CSstay;
- X }
- X
- X if (isupper(c))
- X return do_macro(c);
- X for (OldPoint = Point, kp = MetaMap; kp->Function; kp++)
- X if (kp->Key == c)
- X return (*kp->Function)();
- X
- X return ring_bell();
- X}
- X
- XSTATIC STATUS
- Xemacs(c)
- X unsigned int c;
- X{
- X STATUS s;
- X KEYMAP *kp;
- X
- X if (ISMETA(c)) {
- X Pushed = 1;
- X PushBack = UNMETA(c);
- X return meta();
- X }
- X for (kp = Map; kp->Function; kp++)
- X if (kp->Key == c)
- X break;
- X s = kp->Function ? (*kp->Function)() : insert_char((int)c);
- X if (!Pushed)
- X /* No pushback means no repeat count; hacky, but true. */
- X Repeat = NO_ARG;
- X return s;
- X}
- X
- XSTATIC STATUS
- XTTYspecial(c)
- X unsigned int c;
- X{
- X if (ISMETA(c))
- X return CSdispatch;
- X
- X if (c == rl_erase || c == DEL)
- X return bk_del_char();
- X if (c == rl_kill) {
- X if (Point != 0) {
- X Point = 0;
- X reposition();
- X }
- X Repeat = NO_ARG;
- X return kill_line();
- X }
- X if (c == rl_intr || c == rl_quit) {
- X Point = End = 0;
- X Line[0] = '\0';
- X return redisplay();
- X }
- X if (c == rl_eof && Point == 0 && End == 0)
- X return CSeof;
- X
- X return CSdispatch;
- X}
- X
- XSTATIC CHAR *
- Xeditinput()
- X{
- X unsigned int c;
- X
- X Repeat = NO_ARG;
- X OldPoint = Point = Mark = End = 0;
- X Line[0] = '\0';
- X
- X while ((c = TTYget()) != EOF)
- X switch (TTYspecial(c)) {
- X case CSdone:
- X return Line;
- X case CSeof:
- X return NULL;
- X case CSmove:
- X reposition();
- X break;
- X case CSdispatch:
- X switch (emacs(c)) {
- X case CSdone:
- X return Line;
- X case CSeof:
- X return NULL;
- X case CSmove:
- X reposition();
- X break;
- X case CSdispatch:
- X case CSstay:
- X break;
- X }
- X break;
- X case CSstay:
- X break;
- X }
- X return NULL;
- X}
- X
- XSTATIC void
- Xhist_add(p)
- X CHAR *p;
- X{
- X int i;
- X
- X if ((p = (CHAR *)strdup((char *)p)) == NULL)
- X return;
- X if (H.Size < HIST_SIZE)
- X H.Lines[H.Size++] = p;
- X else {
- X DISPOSE(H.Lines[0]);
- X for (i = 0; i < HIST_SIZE - 1; i++)
- X H.Lines[i] = H.Lines[i + 1];
- X H.Lines[i] = p;
- X }
- X H.Pos = H.Size - 1;
- X}
- X
- X/*
- X** For compatibility with FSF readline.
- X*/
- X/* ARGSUSED0 */
- Xvoid
- Xrl_reset_terminal(p)
- X char *p;
- X{
- X}
- X
- Xvoid
- Xrl_initialize()
- X{
- X}
- X
- Xchar *
- Xreadline(prompt)
- X CONST char *prompt;
- X{
- X CHAR *line;
- X
- X if (Line == NULL) {
- X Length = MEM_INC;
- X if ((Line = NEW(CHAR, Length)) == NULL)
- X return NULL;
- X }
- X
- X TTYinfo();
- X rl_ttyset(0);
- X hist_add(NIL);
- X ScreenSize = SCREEN_INC;
- X Screen = NEW(char, ScreenSize);
- X Prompt = prompt ? prompt : (char *)NIL;
- X TTYputs((CHAR *)Prompt);
- X if ((line = editinput()) != NULL) {
- X line = (CHAR *)strdup((char *)line);
- X TTYputs((CHAR *)NEWLINE);
- X TTYflush();
- X }
- X rl_ttyset(1);
- X DISPOSE(Screen);
- X DISPOSE(H.Lines[--H.Size]);
- X return (char *)line;
- X}
- X
- Xvoid
- Xadd_history(p)
- X char *p;
- X{
- X if (p == NULL || *p == '\0')
- X return;
- X
- X#if defined(UNIQUE_HISTORY)
- X if (H.Pos && strcmp(p, H.Lines[H.Pos - 1]) == 0)
- X return;
- X#endif /* defined(UNIQUE_HISTORY) */
- X hist_add((CHAR *)p);
- X}
- X
- X
- XSTATIC STATUS
- Xbeg_line()
- X{
- X if (Point) {
- X Point = 0;
- X return CSmove;
- X }
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xdel_char()
- X{
- X return delete_string(Repeat == NO_ARG ? 1 : Repeat);
- X}
- X
- XSTATIC STATUS
- Xend_line()
- X{
- X if (Point != End) {
- X Point = End;
- X return CSmove;
- X }
- X return CSstay;
- X}
- X
- X/*
- X** Move back to the beginning of the current word and return an
- X** allocated copy of it.
- X*/
- XSTATIC CHAR *
- Xfind_word()
- X{
- X static char SEPS[] = "#;&|^$=`'{}()<>\n\t ";
- X CHAR *p;
- X CHAR *new;
- X SIZE_T len;
- X
- X for (p = &Line[Point]; p > Line && strchr(SEPS, (char)p[-1]) == NULL; p--)
- X continue;
- X len = Point - (p - Line) + 1;
- X if ((new = NEW(CHAR, len)) == NULL)
- X return NULL;
- X COPYFROMTO(new, p, len);
- X new[len - 1] = '\0';
- X return new;
- X}
- X
- XSTATIC STATUS
- Xc_complete()
- X{
- X CHAR *p;
- X CHAR *word;
- X int unique;
- X STATUS s;
- X
- X word = find_word();
- X p = (CHAR *)rl_complete((char *)word, &unique);
- X if (word)
- X DISPOSE(word);
- X if (p && *p) {
- X s = insert_string(p);
- X if (!unique)
- X (void)ring_bell();
- X DISPOSE(p);
- X return s;
- X }
- X return ring_bell();
- X}
- X
- XSTATIC STATUS
- Xc_possible()
- X{
- X CHAR **av;
- X CHAR *word;
- X int ac;
- X
- X word = find_word();
- X ac = rl_list_possib((char *)word, (char ***)&av);
- X if (word)
- X DISPOSE(word);
- X if (ac) {
- X columns(ac, av);
- X while (--ac >= 0)
- X DISPOSE(av[ac]);
- X DISPOSE(av);
- X return CSmove;
- X }
- X return ring_bell();
- X}
- X
- XSTATIC STATUS
- Xaccept_line()
- X{
- X Line[End] = '\0';
- X return CSdone;
- X}
- X
- XSTATIC STATUS
- Xtranspose()
- X{
- X CHAR c;
- X
- X if (Point) {
- X if (Point == End)
- X left(CSmove);
- X c = Line[Point - 1];
- X left(CSstay);
- X Line[Point - 1] = Line[Point];
- X TTYshow(Line[Point - 1]);
- X Line[Point++] = c;
- X TTYshow(c);
- X }
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xquote()
- X{
- X unsigned int c;
- X
- X return (c = TTYget()) == EOF ? CSeof : insert_char((int)c);
- X}
- X
- XSTATIC STATUS
- Xwipe()
- X{
- X int i;
- X
- X if (Mark > End)
- X return ring_bell();
- X
- X if (Point > Mark) {
- X i = Point;
- X Point = Mark;
- X Mark = i;
- X reposition();
- X }
- X
- X return delete_string(Mark - Point);
- X}
- X
- XSTATIC STATUS
- Xmk_set()
- X{
- X Mark = Point;
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xexchange()
- X{
- X unsigned int c;
- X
- X if ((c = TTYget()) != CTL('X'))
- X return c == EOF ? CSeof : ring_bell();
- X
- X if ((c = Mark) <= End) {
- X Mark = Point;
- X Point = c;
- X return CSmove;
- X }
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xyank()
- X{
- X if (Yanked && *Yanked)
- X return insert_string(Yanked);
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xcopy_region()
- X{
- X if (Mark > End)
- X return ring_bell();
- X
- X if (Point > Mark)
- X save_yank(Mark, Point - Mark);
- X else
- X save_yank(Point, Mark - Point);
- X
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xmove_to_char()
- X{
- X unsigned int c;
- X int i;
- X CHAR *p;
- X
- X if ((c = TTYget()) == EOF)
- X return CSeof;
- X for (i = Point + 1, p = &Line[i]; i < End; i++, p++)
- X if (*p == c) {
- X Point = i;
- X return CSmove;
- X }
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xfd_word()
- X{
- X return do_forward(CSmove);
- X}
- X
- XSTATIC STATUS
- Xfd_kill_word()
- X{
- X int i;
- X
- X (void)do_forward(CSstay);
- X if (OldPoint != Point) {
- X i = Point - OldPoint;
- X Point = OldPoint;
- X return delete_string(i);
- X }
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xbk_word()
- X{
- X int i;
- X CHAR *p;
- X
- X i = 0;
- X do {
- X for (p = &Line[Point]; p > Line && !isalnum(p[-1]); p--)
- X left(CSmove);
- X
- X for (; p > Line && p[-1] != ' ' && isalnum(p[-1]); p--)
- X left(CSmove);
- X
- X if (Point == 0)
- X break;
- X } while (++i < Repeat);
- X
- X return CSstay;
- X}
- X
- XSTATIC STATUS
- Xbk_kill_word()
- X{
- X (void)bk_word();
- X if (OldPoint != Point)
- X return delete_string(OldPoint - Point);
- X return CSstay;
- X}
- X
- XSTATIC int
- Xargify(line, avp)
- X CHAR *line;
- X CHAR ***avp;
- X{
- X CHAR *c;
- X CHAR **p;
- X CHAR **new;
- X int ac;
- X int i;
- X
- X i = MEM_INC;
- X if ((*avp = p = NEW(CHAR*, i))== NULL)
- X return 0;
- X
- X for (c = line; isspace(*c); c++)
- X continue;
- X if (*c == '\n' || *c == '\0')
- X return 0;
- X
- X for (ac = 0, p[ac++] = c; *c && *c != '\n'; ) {
- X if (isspace(*c)) {
- X *c++ = '\0';
- X if (*c && *c != '\n') {
- X if (ac + 1 == i) {
- X new = NEW(CHAR*, i + MEM_INC);
- X if (new == NULL) {
- X p[ac] = NULL;
- X return ac;
- X }
- X COPYFROMTO(new, p, i * sizeof (char **));
- X i += MEM_INC;
- X DISPOSE(p);
- X *avp = p = new;
- X }
- X p[ac++] = c;
- X }
- X }
- X else
- X c++;
- X }
- X *c = '\0';
- X p[ac] = NULL;
- X return ac;
- X}
- X
- XSTATIC STATUS
- Xlast_argument()
- X{
- X CHAR **av;
- X CHAR *p;
- X STATUS s;
- X int ac;
- X
- X if (H.Size == 1 || (p = H.Lines[H.Size - 2]) == NULL)
- X return ring_bell();
- X
- X if ((p = (CHAR *)strdup((char *)p)) == NULL)
- X return CSstay;
- X ac = argify(p, &av);
- X
- X if (Repeat != NO_ARG)
- X s = Repeat < ac ? insert_string(av[Repeat]) : ring_bell();
- X else
- X s = ac ? insert_string(av[ac - 1]) : CSstay;
- X
- X if (ac)
- X DISPOSE(av);
- X DISPOSE(p);
- X return s;
- X}
- X
- XSTATIC KEYMAP Map[33] = {
- X { CTL('@'), ring_bell },
- X { CTL('A'), beg_line },
- X { CTL('B'), bk_char },
- X { CTL('D'), del_char },
- X { CTL('E'), end_line },
- X { CTL('F'), fd_char },
- X { CTL('G'), ring_bell },
- X { CTL('H'), bk_del_char },
- X { CTL('I'), c_complete },
- X { CTL('J'), accept_line },
- X { CTL('K'), kill_line },
- X { CTL('L'), redisplay },
- X { CTL('M'), accept_line },
- X { CTL('N'), h_next },
- X { CTL('O'), ring_bell },
- X { CTL('P'), h_prev },
- X { CTL('Q'), ring_bell },
- X { CTL('R'), h_search },
- X { CTL('S'), ring_bell },
- X { CTL('T'), transpose },
- X { CTL('U'), ring_bell },
- X { CTL('V'), quote },
- X { CTL('W'), wipe },
- X { CTL('X'), exchange },
- X { CTL('Y'), yank },
- X { CTL('Z'), ring_bell },
- X { CTL('['), meta },
- X { CTL(']'), move_to_char },
- X { CTL('^'), ring_bell },
- X { CTL('_'), ring_bell },
- X { 0, NULL }
- X};
- X
- XSTATIC KEYMAP MetaMap[16]= {
- X { CTL('H'), bk_kill_word },
- X { DEL, bk_kill_word },
- X { ' ', mk_set },
- X { '.', last_argument },
- X { '<', h_first },
- X { '>', h_last },
- X { '?', c_possible },
- X { 'b', bk_word },
- X { 'd', fd_kill_word },
- X { 'f', fd_word },
- X { 'l', case_down_word },
- X { 'u', case_up_word },
- X { 'y', yank },
- X { 'w', copy_region },
- X { 0, NULL }
- X};
- END_OF_FILE
- if test 22520 -ne `wc -c <'editline.c'`; then
- echo shar: \"'editline.c'\" unpacked with wrong size!
- fi
- # end of 'editline.c'
- fi
- if test -f 'complete.c' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'complete.c'\"
- else
- echo shar: Extracting \"'complete.c'\" \(4109 characters\)
- sed "s/^X//" >'complete.c' <<'END_OF_FILE'
- X/* $Revision: 1.3 $
- X**
- X** History and file completion functions for editline library.
- X*/
- X#include "editline.h"
- X
- X
- X#if defined(NEED_STRDUP)
- X/*
- X** Return an allocated copy of a string.
- X*/
- Xchar *
- Xstrdup(p)
- X char *p;
- X{
- X char *new;
- X
- X if ((new = NEW(char, strlen(p) + 1)) != NULL)
- X (void)strcpy(new, p);
- X return new;
- X}
- X#endif /* defined(NEED_STRDUP) */
- X
- X/*
- X** strcmp-like sorting predicate for qsort.
- X*/
- XSTATIC int
- Xcompare(p1, p2)
- X CONST void *p1;
- X CONST void *p2;
- X{
- X CONST char **v1;
- X CONST char **v2;
- X
- X v1 = (CONST char **)p1;
- X v2 = (CONST char **)p2;
- X return strcmp(*v1, *v2);
- X}
- X
- X/*
- X** Fill in *avp with an array of names that match file, up to its length.
- X** Ignore . and .. .
- X*/
- XSTATIC int
- XFindMatches(dir, file, avp)
- X char *dir;
- X char *file;
- X char ***avp;
- X{
- X char **av;
- X char **new;
- X char *p;
- X DIR *dp;
- X DIRENTRY *ep;
- X SIZE_T ac;
- X SIZE_T len;
- X
- X if ((dp = opendir(dir)) == NULL)
- X return 0;
- X
- X av = NULL;
- X ac = 0;
- X len = strlen(file);
- X while ((ep = readdir(dp)) != NULL) {
- X p = ep->d_name;
- X if (p[0] == '.' && (p[1] == '\0' || (p[1] == '.' && p[2] == '\0')))
- X continue;
- X if (len && strncmp(p, file, len) != 0)
- X continue;
- X
- X if ((ac % MEM_INC) == 0) {
- X if ((new = NEW(char*, ac + MEM_INC)) == NULL)
- X break;
- X if (ac) {
- X COPYFROMTO(new, av, ac * sizeof (char **));
- X DISPOSE(av);
- X }
- X *avp = av = new;
- X }
- X
- X if ((av[ac] = strdup(p)) == NULL) {
- X if (ac == 0)
- X DISPOSE(av);
- X break;
- X }
- X ac++;
- X }
- X
- X /* Clean up and return. */
- X (void)closedir(dp);
- X if (ac)
- X qsort(av, ac, sizeof (char **), compare);
- X return ac;
- X}
- X
- X/*
- X** Split a pathname into allocated directory and trailing filename parts.
- X*/
- XSTATIC int
- XSplitPath(path, dirpart, filepart)
- X char *path;
- X char **dirpart;
- X char **filepart;
- X{
- X static char DOT[] = ".";
- X char *dpart;
- X char *fpart;
- X
- X if ((fpart = strrchr(path, '/')) == NULL) {
- X if ((dpart = strdup(DOT)) == NULL)
- X return -1;
- X if ((fpart = strdup(path)) == NULL) {
- X DISPOSE(dpart);
- X return -1;
- X }
- X }
- X else {
- X if ((dpart = strdup(path)) == NULL)
- X return -1;
- X dpart[fpart - path] = '\0';
- X if ((fpart = strdup(++fpart)) == NULL) {
- X DISPOSE(dpart);
- X return -1;
- X }
- X }
- X *dirpart = dpart;
- X *filepart = fpart;
- X return 0;
- X}
- X
- X/*
- X** Attempt to complete the pathname, returning an allocated copy.
- X** Fill in *unique if we completed it, or set it to 0 if ambiguous.
- X*/
- Xchar *
- Xrl_complete(pathname, unique)
- X char *pathname;
- X int *unique;
- X{
- X char **av;
- X char *dir;
- X char *file;
- X char *new;
- X char *p;
- X SIZE_T ac;
- X SIZE_T end;
- X SIZE_T i;
- X SIZE_T j;
- X SIZE_T len;
- X
- X if (SplitPath(pathname, &dir, &file) < 0)
- X return NULL;
- X if ((ac = FindMatches(dir, file, &av)) == 0) {
- X DISPOSE(dir);
- X DISPOSE(file);
- X return NULL;
- X }
- X
- X p = NULL;
- X len = strlen(file);
- X if (ac == 1) {
- X /* Exactly one match -- finish it off. */
- X *unique = 1;
- X j = strlen(av[0]) - len + 2;
- X if ((p = NEW(char, j + 1)) != NULL) {
- X COPYFROMTO(p, av[0] + len, j);
- X if ((new = NEW(char, strlen(dir) + strlen(av[0]) + 2)) != NULL) {
- X (void)strcpy(new, dir);
- X (void)strcat(new, "/");
- X (void)strcat(new, av[0]);
- X rl_add_slash(new, p);
- X DISPOSE(new);
- X }
- X }
- X }
- X else {
- X *unique = 0;
- X if (len) {
- X /* Find largest matching substring. */
- X for (i = len, end = strlen(av[0]); i < end; i++)
- X for (j = 1; j < ac; j++)
- X if (av[0][i] != av[j][i])
- X goto breakout;
- X breakout:
- X if (i > len) {
- X j = i - len + 1;
- X if ((p = NEW(char, j)) != NULL) {
- X COPYFROMTO(p, av[0] + len, j);
- X p[j - 1] = '\0';
- X }
- X }
- X }
- X }
- X
- X /* Clean up and return. */
- X DISPOSE(dir);
- X DISPOSE(file);
- X for (i = 0; i < ac; i++)
- X DISPOSE(av[i]);
- X DISPOSE(av);
- X return p;
- X}
- X
- X/*
- X** Return all possible completions.
- X*/
- Xint
- Xrl_list_possib(pathname, avp)
- X char *pathname;
- X char ***avp;
- X{
- X char *dir;
- X char *file;
- X int ac;
- X
- X if (SplitPath(pathname, &dir, &file) < 0)
- X return 0;
- X ac = FindMatches(dir, file, avp);
- X DISPOSE(dir);
- X DISPOSE(file);
- X return ac;
- X}
- END_OF_FILE
- if test 4109 -ne `wc -c <'complete.c'`; then
- echo shar: \"'complete.c'\" unpacked with wrong size!
- fi
- # end of 'complete.c'
- fi
- if test -f 'sysunix.c' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'sysunix.c'\"
- else
- echo shar: Extracting \"'sysunix.c'\" \(1798 characters\)
- sed "s/^X//" >'sysunix.c' <<'END_OF_FILE'
- X/* $Revision: 1.1 $
- X**
- X** Unix system-dependant routines for editline library.
- X*/
- X#include "editline.h"
- X
- X#if defined(HAVE_TCGETATTR)
- X#include <termios.h>
- X
- Xvoid
- Xrl_ttyset(Reset)
- X int Reset;
- X{
- X static struct termios old;
- X struct termios new;
- X
- X if (Reset == 0) {
- X (void)tcgetattr(0, &old);
- X rl_erase = old.c_cc[VERASE];
- X rl_kill = old.c_cc[VKILL];
- X rl_eof = old.c_cc[VEOF];
- X rl_intr = old.c_cc[VINTR];
- X rl_quit = old.c_cc[VQUIT];
- X
- X new = old;
- X new.c_cc[VINTR] = -1;
- X new.c_cc[VQUIT] = -1;
- X new.c_lflag &= ~(ECHO | ICANON);
- X new.c_iflag &= ~(ISTRIP | INPCK);
- X new.c_cc[VMIN] = 1;
- X new.c_cc[VTIME] = 0;
- X (void)tcsetattr(0, TCSANOW, &new);
- X }
- X else
- X (void)tcsetattr(0, TCSANOW, &old);
- X}
- X
- X#else
- X#include <sgtty.h>
- X
- Xvoid
- Xrl_ttyset(Reset)
- X int Reset;
- X{
- X static struct sgttyb old_sgttyb;
- X static struct tchars old_tchars;
- X struct sgttyb new_sgttyb;
- X struct tchars new_tchars;
- X
- X if (Reset == 0) {
- X (void)ioctl(0, TIOCGETP, &old_sgttyb);
- X rl_erase = old_sgttyb.sg_erase;
- X rl_kill = old_sgttyb.sg_kill;
- X
- X (void)ioctl(0, TIOCGETC, &old_tchars);
- X rl_eof = old_tchars.t_eofc;
- X rl_intr = old_tchars.t_intrc;
- X rl_quit = old_tchars.t_quitc;
- X
- X new_sgttyb = old_sgttyb;
- X new_sgttyb.sg_flags &= ~ECHO;
- X new_sgttyb.sg_flags |= RAW;
- X#if defined(PASS8)
- X new_sgttyb.sg_flags |= PASS8;
- X#endif /* defined(PASS8) */
- X (void)ioctl(0, TIOCSETP, &new_sgttyb);
- X
- X new_tchars = old_tchars;
- X new_tchars.t_intrc = -1;
- X new_tchars.t_quitc = -1;
- X (void)ioctl(0, TIOCSETC, &new_tchars);
- X }
- X else {
- X (void)ioctl(0, TIOCSETP, &old_sgttyb);
- X (void)ioctl(0, TIOCSETC, &old_tchars);
- X }
- X}
- X#endif /* defined(HAVE_TCGETATTR) */
- X
- Xvoid
- Xrl_add_slash(path, p)
- X char *path;
- X char *p;
- X{
- X struct stat Sb;
- X
- X if (stat(path, &Sb) >= 0)
- X (void)strcat(p, S_ISDIR(Sb.st_mode) ? "/" : " ");
- X}
- END_OF_FILE
- if test 1798 -ne `wc -c <'sysunix.c'`; then
- echo shar: \"'sysunix.c'\" unpacked with wrong size!
- fi
- # end of 'sysunix.c'
- fi
- if test -f 'testit.c' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'testit.c'\"
- else
- echo shar: Extracting \"'testit.c'\" \(1024 characters\)
- sed "s/^X//" >'testit.c' <<'END_OF_FILE'
- X/* $Revision: 1.2 $
- X**
- X** A "micro-shell" to test editline library.
- X** If given any arguments, commands aren't executed.
- X*/
- X#include <stdio.h>
- X#if defined(HAVE_STDLIB)
- X#include <stdlib.h>
- X#endif /* defined(HAVE_STDLIB) */
- X
- Xextern char *readline();
- Xextern void add_history();
- X
- X#if !defined(HAVE_STDLIB)
- Xextern int chdir();
- Xextern int free();
- Xextern int strncmp();
- Xextern int system();
- Xextern void exit();
- X#endif /* !defined(HAVE_STDLIB) */
- X
- X
- X#if defined(NEED_PERROR)
- Xvoid
- Xperror(s)
- X char *s;
- X{
- X extern int errno;
- X
- X (voidf)printf(stderr, "%s: error %d\n", s, errno);
- X}
- X#endif /* defined(NEED_PERROR) */
- X
- X
- X/* ARGSUSED1 */
- Xint
- Xmain(ac, av)
- X int ac;
- X char *av[];
- X{
- X char *p;
- X int doit;
- X
- X doit = ac == 1;
- X while ((p = readline("testit> ")) != NULL) {
- X (void)printf("\t\t\t|%s|\n", p);
- X if (doit)
- X if (strncmp(p, "cd ", 3) == 0) {
- X if (chdir(&p[3]) < 0)
- X perror(&p[3]);
- X }
- X else if (system(p) != 0)
- X perror(p);
- X add_history(p);
- X free(p);
- X }
- X exit(0);
- X /* NOTREACHED */
- X}
- END_OF_FILE
- if test 1024 -ne `wc -c <'testit.c'`; then
- echo shar: \"'testit.c'\" unpacked with wrong size!
- fi
- # end of 'testit.c'
- fi
- if test -f 'Make.os9' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'Make.os9'\"
- else
- echo shar: Extracting \"'Make.os9'\" \(348 characters\)
- sed "s/^X//" >'Make.os9' <<'END_OF_FILE'
- X## $Revision: 1.2 $
- X##
- X## OS-9 makefile for editline library.
- X##
- X
- X.SUFFIXES:
- X
- XRFILES = editline.r complete.r sysos9.r
- X
- X%.r: %.c
- X cc68 -r -Dstrchr=index -Dstrrchr=rindex -DNEED_STRDUP -DSYS_OS9 $*.c
- X
- Xtestit: testit.r editline.lib
- X cc68 -f=testit testit.r -l=editline.lib
- X
- X$(RFILES): $(RFILES:%.r=%.c)
- X
- Xeditline.lib: $(RFILES)
- X cat $(RFILES) >$@
- END_OF_FILE
- if test 348 -ne `wc -c <'Make.os9'`; then
- echo shar: \"'Make.os9'\" unpacked with wrong size!
- fi
- # end of 'Make.os9'
- fi
- if test -f 'os9.h' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'os9.h'\"
- else
- echo shar: Extracting \"'os9.h'\" \(174 characters\)
- sed "s/^X//" >'os9.h' <<'END_OF_FILE'
- X/* $Revision: 1.1 $
- X**
- X** Editline system header file for OS-9 (on 68k).
- X*/
- X
- X#define CRLF "\r\l"
- X#define FORWARD extern
- X
- X#include <dir.h>
- Xtypedef struct direct DIRENTRY;
- END_OF_FILE
- if test 174 -ne `wc -c <'os9.h'`; then
- echo shar: \"'os9.h'\" unpacked with wrong size!
- fi
- # end of 'os9.h'
- fi
- if test -f 'sysos9.c' -a "${1}" != "-c" ; then
- echo shar: Will not clobber existing file \"'sysos9.c'\"
- else
- echo shar: Extracting \"'sysos9.c'\" \(1120 characters\)
- sed "s/^X//" >'sysos9.c' <<'END_OF_FILE'
- X/* $Revision: 1.1 $
- X**
- X** OS-9 system-dependant routines for editline library.
- X*/
- X#include "editline.h"
- X#include <sgstat.h>
- X#include <modes.h>
- X
- X
- Xvoid
- Xrl_ttyset(Reset)
- X int Reset;
- X{
- X static struct sgbuf old;
- X struct sgbuf new;
- X
- X
- X if (Reset == 0) {
- X _gs_opt(0, &old);
- X _gs_opt(0, &new);
- X new.sg_backsp = 0; new.sg_delete = 0; new.sg_echo = 0;
- X new.sg_alf = 0; new.sg_nulls = 0; new.sg_pause = 0;
- X new.sg_page = 0; new.sg_bspch = 0; new.sg_dlnch = 0;
- X new.sg_eorch = 0; new.sg_eofch = 0; new.sg_rlnch = 0;
- X new.sg_dulnch = 0; new.sg_psch = 0; new.sg_kbich = 0;
- X new.sg_kbach = 0; new.sg_bsech = 0; new.sg_bellch = 0;
- X new.sg_xon = 0; new.sg_xoff = 0; new.sg_tabcr = 0;
- X new.sg_tabsiz = 0;
- X _ss_opt(0, &new);
- X rl_erase = old.sg_bspch;
- X rl_kill = old.sg_dlnch;
- X rl_eof = old.sg_eofch;
- X rl_intr = old.sg_kbich;
- X rl_quit = -1;
- X }
- X else
- X _ss_opt(0, &old);
- X}
- X
- Xvoid
- Xrl_add_slash(path, p)
- X char *path;
- X char *p;
- X{
- X (void)strcat(p, access(path, S_IREAD | S_IFDIR) ? " " : "/");
- X}
- END_OF_FILE
- if test 1120 -ne `wc -c <'sysos9.c'`; then
- echo shar: \"'sysos9.c'\" unpacked with wrong size!
- fi
- # end of 'sysos9.c'
- fi
- echo shar: End of archive.
- exit 0
-
- exit 0 # Just in case...
-