Minix Editline from Minix current 2008-06-06 (June 6th).

Makefile.in

@@ -0,0 +1,44 @@
+##  $Revision: 1390 $
+##
+##  Unix makefile for editline library.
+##
+
+
+##  Set your options:
+##	-DANSI_ARROWS		ANSI arrows keys work like emacs.
+##	-DHAVE_STDLIB		Have <stdlib.h>.
+##	-DHAVE_TCGETATTR	Have , .
+##	-DHAVE_TERMIO		Have "struct termio" and <termio.h>
+##	(If neither of above two, we use <sgttyb.h> and BSD ioctl's)
+##	-DHIDE			Make static functions static (non debug).
+##	-DHIST_SIZE=n		History size.
+##	-DNEED_STRDUP		Don't have .
+##	-DUNIQUE_HISTORY	Don't save command if same as last one.
+##	-DUSE_DIRENT		Use <dirent.h>, not <sys/dir.h>?
+##	-DUSE_TERMCAP		Use the termcap library for terminal size
+##				see LDFLAGS, below, if you set this.
+##	-DNEED_PERROR		Don't have  (used in testit)
+DEFS="-DANSI_ARROWS -DHAVE_STDLIB -DHAVE_TCGETATTR -DHIDE -DUSE_DIRENT \
+	-DHIST_SIZE=100 -DUSE_TERMCAP -DSYS_UNIX"
+#-DNEED_STRDUP
+
+CFLAGS="-O -D_MINIX -D_POSIX_SOURCE $DEFS -wo"
+#CC1	= $(CC) $(CFLAGS) -c
+
+##  If you have -DUSE_TERMCAP, set this as appropriate:
+#LDFLAGS = -ltermlib
+#LDFLAGS = -ltermcap
+
+##  End of configuration.
+
+#SOURCES	= editline.c complete.c sysunix.c
+#LIBRARY = ../libedit.a
+LIBRARIES=libedit
+#OBJECTS	= editline.o complete.o sysunix.o
+libedit_FILES="editline.c complete.c sysunix.c"
+#SHARFILES =	README Makefile editline.3 editline.h unix.h editline.c \
+
+TYPE=both
+#include ../Makefile.inc
+
+#$(call ADDDEPENDENCIES,$(libedit_OBJECTS),editline.h)

README

@@ -0,0 +1,59 @@
+$Revision: 5 $
+
+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.
+
+This contains some changes since the posting to comp.sources.misc:
+	Bugfix for completion on absolute pathnames.
+	Better handling of M-n versus showing raw 8bit chars.
+	Better signal handling.
+	Now supports termios/termio/sgttyb ioctl's.
+	Add M-m command to toggle how 8bit data is displayed.
+
+There is one known bug:
+	History-searching redraws the line wrong if the text
+	retrieved is shorter then the prompt.
+
+Enjoy,
+	Rich $alz
+	<rsalz@osf.org>
+
+ Copyright 1992,1993 Simmule Turner and Rich Salz.  All rights reserved.
+
+ This software is not subject to any license of the American Telephone
+ and Telegraph Company or of the Regents of the University of California.
+
+ Permission is granted to anyone to use this software for any purpose on
+ any computer system, and to alter it and redistribute it freely, subject
+ to the following restrictions:
+ 1. The authors are not responsible for the consequences of use of this
+    software, no matter how awful, even if they arise from flaws in it.
+ 2. The origin of this software must not be misrepresented, either by
+    explicit claim or by omission.  Since few users ever read sources,
+    credits must appear in the documentation.
+ 3. Altered versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.  Since few users
+    ever read sources, credits must appear in the documentation.
+ 4. This notice may not be removed or altered.
+
+--
+$PchId: README,v 1.3 1996/02/22 21:18:51 philip Exp $

complete.c

@@ -0,0 +1,254 @@
+/*  $Revision: 5 $
+**
+**  History and file completion functions for editline library.
+*/
+#include "editline.h"
+
+
+#if	defined(NEED_STRDUP)
+/*
+**  Return an allocated copy of a string.
+*/
+char *
+strdup(p)
+    char	*p;
+{
+    char	*new;
+
+    if ((new = NEW(char, strlen(p) + 1)) != NULL)
+	(void)strcpy(new, p);
+    return new;
+}
+#endif	/* defined(NEED_STRDUP) */
+
+/*
+**  strcmp-like sorting predicate for qsort.
+*/
+STATIC int
+compare(p1, p2)
+    CONST void	*p1;
+    CONST void	*p2;
+{
+    CONST char	**v1;
+    CONST char	**v2;
+
+    v1 = (CONST char **)p1;
+    v2 = (CONST char **)p2;
+    return strcmp(*v1, *v2);
+}
+
+/*
+**  Fill in *avp with an array of names that match file, up to its length.
+**  Ignore . and .. .
+*/
+STATIC int
+FindMatches(dir, file, avp)
+    char	*dir;
+    char	*file;
+    char	***avp;
+{
+    char	**av;
+    char	**new;
+    char	*p;
+    DIR		*dp;
+    DIRENTRY	*ep;
+    SIZE_T	ac;
+    SIZE_T	len;
+    SIZE_T	choices;
+    SIZE_T	total;
+#define MAX_TOTAL	(256 << sizeof(char *))
+
+    if ((dp = opendir(dir)) == NULL)
+	return 0;
+
+    av = NULL;
+    ac = 0;
+    len = strlen(file);
+    choices = 0;
+    total = 0;
+    while ((ep = readdir(dp)) != NULL) {
+	p = ep->d_name;
+	if (p[0] == '.' && (p[1] == '\0' || (p[1] == '.' && p[2] == '\0')))
+	    continue;
+	if (len && strncmp(p, file, len) != 0)
+	    continue;
+
+	choices++;
+	if ((total += strlen(p)) > MAX_TOTAL) {
+	    /* This is a bit too much. */
+	    while (ac > 0) DISPOSE(av[--ac]);
+	    continue;
+	}
+
+	if ((ac % MEM_INC) == 0) {
+	    if ((new = NEW(char*, ac + MEM_INC)) == NULL) {
+		total = 0;
+		break;
+	    }
+	    if (ac) {
+		COPYFROMTO(new, av, ac * sizeof (char **));
+		DISPOSE(av);
+	    }
+	    *avp = av = new;
+	}
+
+	if ((av[ac] = strdup(p)) == NULL) {
+	    if (ac == 0)
+		DISPOSE(av);
+	    total = 0;
+	    break;
+	}
+	ac++;
+    }
+
+    /* Clean up and return. */
+    (void)closedir(dp);
+    if (total > MAX_TOTAL) {
+	char many[sizeof(total) * 3];
+	p = many + sizeof(many);
+	*--p = '\0';
+	while (choices > 0) {
+	   *--p = '0' + choices % 10;
+	   choices /= 10;
+	}
+	while (p > many + sizeof(many) - 8) *--p = ' ';
+	if ((p = strdup(p)) != NULL) av[ac++] = p;
+	if ((p = strdup("choices")) != NULL) av[ac++] = p;
+    } else {
+	if (ac)
+	    qsort(av, ac, sizeof (char **), compare);
+    }
+    return ac;
+}
+
+/*
+**  Split a pathname into allocated directory and trailing filename parts.
+*/
+STATIC int
+SplitPath(path, dirpart, filepart)
+    char	*path;
+    char	**dirpart;
+    char	**filepart;
+{
+    static char	DOT[] = ".";
+    char	*dpart;
+    char	*fpart;
+
+    if ((fpart = strrchr(path, '/')) == NULL) {
+	if ((dpart = strdup(DOT)) == NULL)
+	    return -1;
+	if ((fpart = strdup(path)) == NULL) {
+	    DISPOSE(dpart);
+	    return -1;
+	}
+    }
+    else {
+	if ((dpart = strdup(path)) == NULL)
+	    return -1;
+	dpart[fpart - path + 1] = '\0';
+	if ((fpart = strdup(++fpart)) == NULL) {
+	    DISPOSE(dpart);
+	    return -1;
+	}
+    }
+    *dirpart = dpart;
+    *filepart = fpart;
+    return 0;
+}
+
+/*
+**  Attempt to complete the pathname, returning an allocated copy.
+**  Fill in *unique if we completed it, or set it to 0 if ambiguous.
+*/
+char *
+rl_complete(pathname, unique)
+    char	*pathname;
+    int		*unique;
+{
+    char	**av;
+    char	*dir;
+    char	*file;
+    char	*new;
+    char	*p;
+    SIZE_T	ac;
+    SIZE_T	end;
+    SIZE_T	i;
+    SIZE_T	j;
+    SIZE_T	len;
+
+    if (SplitPath(pathname, &dir, &file) < 0)
+	return NULL;
+    if ((ac = FindMatches(dir, file, &av)) == 0) {
+	DISPOSE(dir);
+	DISPOSE(file);
+	return NULL;
+    }
+
+    p = NULL;
+    len = strlen(file);
+    if (ac == 1) {
+	/* Exactly one match -- finish it off. */
+	*unique = 1;
+	j = strlen(av[0]) - len + 2;
+	if ((p = NEW(char, j + 1)) != NULL) {
+	    COPYFROMTO(p, av[0] + len, j);
+	    if ((new = NEW(char, strlen(dir) + strlen(av[0]) + 2)) != NULL) {
+		(void)strcpy(new, dir);
+		(void)strcat(new, "/");
+		(void)strcat(new, av[0]);
+		rl_add_slash(new, p);
+		DISPOSE(new);
+	    }
+	}
+    }
+    else {
+	*unique = 0;
+	if (len) {
+	    /* Find largest matching substring. */
+	    for (i = len, end = strlen(av[0]); i < end; i++)
+		for (j = 1; j < ac; j++)
+		    if (av[0][i] != av[j][i])
+			goto breakout;
+  breakout:
+	    if (i > len) {
+		j = i - len + 1;
+		if ((p = NEW(char, j)) != NULL) {
+		    COPYFROMTO(p, av[0] + len, j);
+		    p[j - 1] = '\0';
+		}
+	    }
+	}
+    }
+
+    /* Clean up and return. */
+    DISPOSE(dir);
+    DISPOSE(file);
+    for (i = 0; i < ac; i++)
+	DISPOSE(av[i]);
+    DISPOSE(av);
+    return p;
+}
+
+/*
+**  Return all possible completions.
+*/
+int
+rl_list_possib(pathname, avp)
+    char	*pathname;
+    char	***avp;
+{
+    char	*dir;
+    char	*file;
+    int		ac;
+
+    if (SplitPath(pathname, &dir, &file) < 0)
+	return 0;
+    ac = FindMatches(dir, file, avp);
+    DISPOSE(dir);
+    DISPOSE(file);
+    return ac;
+}
+
+/*
+ * $PchId: complete.c,v 1.3 1996/02/22 21:18:51 philip Exp $
+ */

editline.h

@@ -0,0 +1,79 @@
+/*  $Revision: 5 $
+**
+**  Internal header file for editline library.
+*/
+#include <stdio.h>
+#if	defined(HAVE_STDLIB)
+#include <stdlib.h>
+#include <string.h>
+#endif	/* defined(HAVE_STDLIB) */
+#if	defined(SYS_UNIX)
+#include "unix.h"
+#endif	/* defined(SYS_UNIX) */
+#if	defined(SYS_OS9)
+#include "os9.h"
+#endif	/* defined(SYS_OS9) */
+
+#if	!defined(SIZE_T)
+#define SIZE_T	unsigned int
+#endif	/* !defined(SIZE_T) */
+
+typedef unsigned char	CHAR;
+
+#if	defined(HIDE)
+#define STATIC	static
+#else
+#define STATIC	/* NULL */
+#endif	/* !defined(HIDE) */
+
+#if	!defined(CONST)
+#if	defined(__STDC__)
+#define CONST	const
+#else
+#define CONST
+#endif	/* defined(__STDC__) */
+#endif	/* !defined(CONST) */
+
+
+#define MEM_INC		64
+#define SCREEN_INC	256
+
+#define DISPOSE(p)	free((char *)(p))
+#define NEW(T, c)	\
+	((T *)malloc((unsigned int)(sizeof (T) * (c))))
+#define RENEW(p, T, c)	\
+	(p = (T *)realloc((char *)(p), (unsigned int)(sizeof (T) * (c))))
+#define COPYFROMTO(new, p, len)	\
+	(void)memcpy((char *)(new), (char *)(p), (int)(len))
+
+
+/*
+**  Variables and routines internal to this package.
+*/
+extern int	rl_eof;
+extern int	rl_erase;
+extern int	rl_intr;
+extern int	rl_kill;
+extern int	rl_quit;
+extern char	*rl_complete();
+extern int	rl_list_possib();
+extern void	rl_ttyset();
+extern void	rl_add_slash();
+
+#if	!defined(HAVE_STDLIB)
+extern char	*getenv();
+extern char	*malloc();
+extern char	*realloc();
+extern char	*memcpy();
+extern char	*strcat();
+extern char	*strchr();
+extern char	*strrchr();
+extern char	*strcpy();
+extern int	strcmp();
+extern int	strlen();
+extern int	strncmp();
+#endif	/* !defined(HAVE_STDLIB) */
+
+#if	defined(NEED_STRDUP)
+extern char	*strdup();
+#endif

sysunix.c

@@ -0,0 +1,120 @@
+/*  $Revision: 5 $
+**
+**  Unix system-dependant routines for editline library.
+*/
+#include "editline.h"
+
+#if	defined(HAVE_TCGETATTR)
+#include <termios.h>
+
+void
+rl_ttyset(Reset)
+    int				Reset;
+{
+    static struct termios	old;
+    struct termios		new;
+
+    if (Reset == 0) {
+	(void)tcgetattr(0, &old);
+	rl_erase = old.c_cc[VERASE];
+	rl_kill = old.c_cc[VKILL];
+	rl_eof = old.c_cc[VEOF];
+	rl_intr = old.c_cc[VINTR];
+	rl_quit = old.c_cc[VQUIT];
+
+	new = old;
+	new.c_lflag &= ~(ECHO | ICANON | ISIG | IEXTEN);
+	new.c_iflag &= ~(ICRNL);
+	new.c_cc[VMIN] = 1;
+	new.c_cc[VTIME] = 0;
+	(void)tcsetattr(0, TCSADRAIN, &new);
+    }
+    else
+	(void)tcsetattr(0, TCSADRAIN, &old);
+}
+
+#else
+#if	defined(HAVE_TERMIO)
+#include <termio.h>
+
+void
+rl_ttyset(Reset)
+    int				Reset;
+{
+    static struct termio	old;
+    struct termio		new;
+
+    if (Reset == 0) {
+	(void)ioctl(0, TCGETA, &old);
+	rl_erase = old.c_cc[VERASE];
+	rl_kill = old.c_cc[VKILL];
+	rl_eof = old.c_cc[VEOF];
+	rl_intr = old.c_cc[VINTR];
+	rl_quit = old.c_cc[VQUIT];
+
+	new = old;
+	new.c_cc[VINTR] = -1;
+	new.c_cc[VQUIT] = -1;
+	new.c_lflag &= ~(ECHO | ICANON);
+	new.c_cc[VMIN] = 1;
+	new.c_cc[VTIME] = 0;
+	(void)ioctl(0, TCSETAW, &new);
+    }
+    else
+	(void)ioctl(0, TCSETAW, &old);
+}
+
+#else
+#include <sgtty.h>
+
+void
+rl_ttyset(Reset)
+    int				Reset;
+{
+    static struct sgttyb	old_sgttyb;
+    static struct tchars	old_tchars;
+    struct sgttyb		new_sgttyb;
+    struct tchars		new_tchars;
+
+    if (Reset == 0) {
+	(void)ioctl(0, TIOCGETP, &old_sgttyb);
+	rl_erase = old_sgttyb.sg_erase;
+	rl_kill = old_sgttyb.sg_kill;
+
+	(void)ioctl(0, TIOCGETC, &old_tchars);
+	rl_eof = old_tchars.t_eofc;
+	rl_intr = old_tchars.t_intrc;
+	rl_quit = old_tchars.t_quitc;
+
+	new_sgttyb = old_sgttyb;
+	new_sgttyb.sg_flags &= ~ECHO;
+	new_sgttyb.sg_flags |= RAW;
+	(void)ioctl(0, TIOCSETP, &new_sgttyb);
+
+	new_tchars = old_tchars;
+	new_tchars.t_intrc = -1;
+	new_tchars.t_quitc = -1;
+	(void)ioctl(0, TIOCSETC, &new_tchars);
+    }
+    else {
+	(void)ioctl(0, TIOCSETP, &old_sgttyb);
+	(void)ioctl(0, TIOCSETC, &old_tchars);
+    }
+}
+#endif	/* defined(HAVE_TERMIO) */
+#endif	/* defined(HAVE_TCGETATTR) */
+
+void
+rl_add_slash(path, p)
+    char	*path;
+    char	*p;
+{
+    struct stat	Sb;
+
+    if (stat(path, &Sb) >= 0)
+	(void)strcat(p, S_ISDIR(Sb.st_mode) ? "/" : " ");
+}
+
+/*
+ * $PchId: sysunix.c,v 1.4 1996/02/22 21:16:56 philip Exp $
+ */

testit.c

@@ -0,0 +1,68 @@
+/*  $Revision: 5 $
+**
+**  A "micro-shell" to test editline library.
+**  If given any arguments, commands aren't executed.
+*/
+#include <stdio.h>
+#if	defined(HAVE_STDLIB)
+#include <stdlib.h>
+#endif	/* defined(HAVE_STDLIB) */
+
+extern char	*readline();
+extern void	add_history();
+
+#if	!defined(HAVE_STDLIB)
+extern int	chdir();
+extern int	free();
+extern int	strncmp();
+extern int	system();
+extern void	exit();
+extern char	*getenv();
+#endif	/* !defined(HAVE_STDLIB) */
+
+
+#if	defined(NEED_PERROR)
+void
+perror(s)
+    char	*s;
+{
+    extern int	errno;
+
+    (voidf)printf(stderr, "%s: error %d\n", s, errno);
+}
+#endif	/* defined(NEED_PERROR) */
+
+
+/* ARGSUSED1 */
+int
+main(ac, av)
+    int		ac;
+    char	*av[];
+{
+    char	*prompt;
+    char	*p;
+    int		doit;
+
+    doit = ac == 1;
+    if ((prompt = getenv("TESTPROMPT")) == NULL)
+	prompt = "testit>  ";
+
+    while ((p = readline(prompt)) != NULL) {
+	(void)printf("\t\t\t|%s|\n", p);
+	if (doit)
+	    if (strncmp(p, "cd ", 3) == 0) {
+		if (chdir(&p[3]) < 0)
+		    perror(&p[3]);
+	    }
+	    else if (system(p) != 0)
+		perror(p);
+	add_history(p);
+	free(p);
+    }
+    exit(0);
+    /* NOTREACHED */
+}
+
+/*
+ * $PchId: testit.c,v 1.3 1996/02/22 21:18:51 philip Exp $
+ */

unix.h

@@ -0,0 +1,26 @@
+/*  $Revision: 5 $
+**
+**  Editline system header file for Unix.
+*/
+
+#define CRLF		"\r\n"
+#define FORWARD		STATIC
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#if	defined(USE_DIRENT)
+#include <dirent.h>
+typedef struct dirent	DIRENTRY;
+#else
+#include <sys/dir.h>
+typedef struct direct	DIRENTRY;
+#endif	/* defined(USE_DIRENT) */
+
+#if	!defined(S_ISDIR)
+#define S_ISDIR(m)		(((m) & S_IFMT) == S_IFDIR)
+#endif	/* !defined(S_ISDIR) */
+
+/*
+ * $PchId: unix.h,v 1.3 1996/02/22 21:18:51 philip Exp $
+ */