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adv_cmds-176 basic_cmds-55 bootstrap_cmds-116.100.1 developer_cmds-66 diskdev_cmds-667.40.1 doc_cmds-53.60.1 file_cmds-321.40.3 mail_cmds-35 misc_cmds-34 network_cmds-606.40.1 patch_cmds-17 remote_cmds-63 shell_cmds-216.60.1 system_cmds-880.60.2 text_cmds-106
author: Cameron Katri <me@cameronkatri.com> 2021-05-09 14:20:58 -0400
committer: Cameron Katri <me@cameronkatri.com> 2021-05-09 14:20:58 -0400
commit: 5fd83771641d15c418f747bd343ba6738d3875f7 (patch)
tree: 5abf0f78f680d9837dbd93d4d4c3933bb7509599 /doc_cmds
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diff --git a/doc_cmds/checknr/checknr.1 b/doc_cmds/checknr/checknr.1
new file mode 100644
index 0000000..871730e
--- /dev/null
+++ b/doc_cmds/checknr/checknr.1
@@ -0,0 +1,163 @@
+.\" Copyright (c) 1980, 1990, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)checknr.1	8.1 (Berkeley) 6/6/93
+.\" $FreeBSD: src/usr.bin/checknr/checknr.1,v 1.10 2004/07/02 22:22:23 ru Exp $
+.\"
+.Dd June 6, 1993
+.Dt CHECKNR 1
+.Os
+.Sh NAME
+.Nm checknr
+.Nd check nroff/troff files
+.Sh SYNOPSIS
+.Nm
+.Op Fl a Ns Ar \&.x1.y1.x2.y2. ... \&.xn.yn
+.Op Fl c Ns Ar \&.x1.x2.x3 ... \&.xn
+.Op Fl s
+.Op Fl f
+.Ar file
+.Sh DESCRIPTION
+The
+.Nm
+utility checks a list of
+.Xr nroff 1
+or
+.Xr troff 1
+input files for certain kinds of errors
+involving mismatched opening and closing delimiters
+and unknown commands.
+If no files are specified,
+.Nm
+checks the standard input.
+.Pp
+The following options are available:
+.Bl -tag -width indent
+.It Fl a
+Add additional pairs of macros to the list of known macros.
+This must be followed by groups of six characters, each group defining
+a pair of macros.
+The six characters are
+a period,
+the first macro name,
+another period,
+and the second macro name.
+For example, to define a pair .BS and .ES, use
+.Sq Li \-a.BS.ES
+.It Fl c
+Define commands which would otherwise be complained about
+as undefined.
+.It Fl f
+Request
+.Nm
+to ignore
+.Ql \ef
+font changes.
+.It Fl s
+Ignore
+.Ql \es
+size changes.
+.El
+.Pp
+Delimiters checked are:
+.Bl -enum
+.It
+Font changes using \efx ...\& \efP.
+.It
+Size changes using \esx ...\& \es0.
+.It
+Macros that come in open ...\& close forms, for example,
+the .TS and .TE macros which must always come in pairs.
+.El
+.Pp
+The
+.Nm
+utility is intended for use on documents that are prepared with
+.Nm
+in mind, much the same as
+.Xr lint 1 .
+It expects a certain document writing style for
+.Ql \ef
+and
+.Ql \es
+commands,
+in that each
+.Ql \efx
+must be terminated with
+.Ql \efP
+and
+each
+.Ql \esx
+must be terminated with
+.Ql \es0 .
+While it will work to directly go into the next font or explicitly
+specify the original font or point size,
+and many existing documents actually do this,
+such a practice will produce complaints from
+.Nm .
+Since it is probably better to use the
+.Ql \efP
+and
+.Ql \es0
+forms anyway,
+you should think of this as a contribution to your document
+preparation style.
+.Pp
+The
+.Nm
+utility knows about the
+.Xr ms 7
+and
+.Xr me 7
+macro packages.
+.Sh SEE ALSO
+.Xr nroff 1 ,
+.Xr troff 1 ,
+.Xr me 7 ,
+.Xr ms 7
+.\" .Xr checkeq 1 ,
+.Sh DIAGNOSTICS
+.Bd -ragged -compact
+Complaints about unmatched delimiters.
+Complaints about unrecognized commands.
+Various complaints about the syntax of commands.
+.Ed
+.Sh BUGS
+There is no way to define a 1 character macro name using
+.Fl a .
+.Pp
+Does not correctly recognize certain reasonable constructs,
+such as conditionals.
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 4.0 .
diff --git a/doc_cmds/checknr/checknr.c b/doc_cmds/checknr/checknr.c
new file mode 100644
index 0000000..ae1f847
--- /dev/null
+++ b/doc_cmds/checknr/checknr.c
@@ -0,0 +1,607 @@
+/*
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static const char copyright[] =
+"@(#) Copyright (c) 1980, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif /* not lint */
+
+#if 0
+#ifndef lint
+static char sccsid[] = "@(#)checknr.c	8.1 (Berkeley) 6/6/93";
+#endif /* not lint */
+#endif
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/usr.bin/checknr/checknr.c,v 1.9 2004/07/15 04:42:47 tjr Exp $");
+
+/*
+ * checknr: check an nroff/troff input file for matching macro calls.
+ * we also attempt to match size and font changes, but only the embedded
+ * kind.  These must end in \s0 and \fP resp.  Maybe more sophistication
+ * later but for now think of these restrictions as contributions to
+ * structured typesetting.
+ */
+#include <err.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+
+#define MAXSTK	100	/* Stack size */
+#define MAXBR	100	/* Max number of bracket pairs known */
+#define MAXCMDS	500	/* Max number of commands known */
+
+void addcmd(char *);
+void addmac(const char *);
+int binsrch(const char *);
+void checkknown(const char *);
+void chkcmd(const char *, const char *);
+void complain(int);
+int eq(const char *, const char *);
+void nomatch(const char *);
+void pe(int);
+void process(FILE *);
+void prop(int);
+static void usage(void);
+
+/*
+ * The stack on which we remember what we've seen so far.
+ */
+struct stkstr {
+	int opno;	/* number of opening bracket */
+	int pl;		/* '+', '-', ' ' for \s, 1 for \f, 0 for .ft */
+	int parm;	/* parm to size, font, etc */
+	int lno;	/* line number the thing came in in */
+} stk[MAXSTK];
+int stktop;
+
+/*
+ * The kinds of opening and closing brackets.
+ */
+struct brstr {
+	const char *opbr;
+	const char *clbr;
+} br[MAXBR] = {
+	/* A few bare bones troff commands */
+#define SZ	0
+	{"sz",	"sz"},	/* also \s */
+#define FT	1
+	{"ft",	"ft"},	/* also \f */
+	/* the -mm package */
+	{"AL",	"LE"},
+	{"AS",	"AE"},
+	{"BL",	"LE"},
+	{"BS",	"BE"},
+	{"DF",	"DE"},
+	{"DL",	"LE"},
+	{"DS",	"DE"},
+	{"FS",	"FE"},
+	{"ML",	"LE"},
+	{"NS",	"NE"},
+	{"RL",	"LE"},
+	{"VL",	"LE"},
+	/* the -ms package */
+	{"AB",	"AE"},
+	{"BD",	"DE"},
+	{"CD",	"DE"},
+	{"DS",	"DE"},
+	{"FS",	"FE"},
+	{"ID",	"DE"},
+	{"KF",	"KE"},
+	{"KS",	"KE"},
+	{"LD",	"DE"},
+	{"LG",	"NL"},
+	{"QS",	"QE"},
+	{"RS",	"RE"},
+	{"SM",	"NL"},
+	{"XA",	"XE"},
+	{"XS",	"XE"},
+	/* The -me package */
+	{"(b",	")b"},
+	{"(c",	")c"},
+	{"(d",	")d"},
+	{"(f",	")f"},
+	{"(l",	")l"},
+	{"(q",	")q"},
+	{"(x",	")x"},
+	{"(z",	")z"},
+	/* Things needed by preprocessors */
+	{"EQ",	"EN"},
+	{"TS",	"TE"},
+	/* Refer */
+	{"[",	"]"},
+	{0,	0}
+};
+
+/*
+ * All commands known to nroff, plus macro packages.
+ * Used so we can complain about unrecognized commands.
+ */
+const char *knowncmds[MAXCMDS] = {
+"$c", "$f", "$h", "$p", "$s", "(b", "(c", "(d", "(f", "(l", "(q", "(t",
+"(x", "(z", ")b", ")c", ")d", ")f", ")l", ")q", ")t", ")x", ")z", "++",
+"+c", "1C", "1c", "2C", "2c", "@(", "@)", "@C", "@D", "@F", "@I", "@M",
+"@c", "@e", "@f", "@h", "@m", "@n", "@o", "@p", "@r", "@t", "@z", "AB",
+"AE", "AF", "AI", "AL", "AM", "AS", "AT", "AU", "AX", "B",  "B1", "B2",
+"BD", "BE", "BG", "BL", "BS", "BT", "BX", "C1", "C2", "CD", "CM", "CT",
+"D",  "DA", "DE", "DF", "DL", "DS", "DT", "EC", "EF", "EG", "EH", "EM",
+"EN", "EQ", "EX", "FA", "FD", "FE", "FG", "FJ", "FK", "FL", "FN", "FO",
+"FQ", "FS", "FV", "FX", "H",  "HC", "HD", "HM", "HO", "HU", "I",  "ID",
+"IE", "IH", "IM", "IP", "IX", "IZ", "KD", "KE", "KF", "KQ", "KS", "LB",
+"LC", "LD", "LE", "LG", "LI", "LP", "MC", "ME", "MF", "MH", "ML", "MR",
+"MT", "ND", "NE", "NH", "NL", "NP", "NS", "OF", "OH", "OK", "OP", "P",
+"P1", "PF", "PH", "PP", "PT", "PX", "PY", "QE", "QP", "QS", "R",  "RA",
+"RC", "RE", "RL", "RP", "RQ", "RS", "RT", "S",  "S0", "S2", "S3", "SA",
+"SG", "SH", "SK", "SM", "SP", "SY", "T&", "TA", "TB", "TC", "TD", "TE",
+"TH", "TL", "TM", "TP", "TQ", "TR", "TS", "TX", "UL", "US", "UX", "VL",
+"WC", "WH", "XA", "XD", "XE", "XF", "XK", "XP", "XS", "[",  "[-", "[0",
+"[1", "[2", "[3", "[4", "[5", "[<", "[>", "[]", "]",  "]-", "]<", "]>",
+"][", "ab", "ac", "ad", "af", "am", "ar", "as", "b",  "ba", "bc", "bd",
+"bi", "bl", "bp", "br", "bx", "c.", "c2", "cc", "ce", "cf", "ch", "cs",
+"ct", "cu", "da", "de", "di", "dl", "dn", "ds", "dt", "dw", "dy", "ec",
+"ef", "eh", "el", "em", "eo", "ep", "ev", "ex", "fc", "fi", "fl", "fo",
+"fp", "ft", "fz", "hc", "he", "hl", "hp", "ht", "hw", "hx", "hy", "i",
+"ie", "if", "ig", "in", "ip", "it", "ix", "lc", "lg", "li", "ll", "ln",
+"lo", "lp", "ls", "lt", "m1", "m2", "m3", "m4", "mc", "mk", "mo", "n1",
+"n2", "na", "ne", "nf", "nh", "nl", "nm", "nn", "np", "nr", "ns", "nx",
+"of", "oh", "os", "pa", "pc", "pi", "pl", "pm", "pn", "po", "pp", "ps",
+"q",  "r",  "rb", "rd", "re", "rm", "rn", "ro", "rr", "rs", "rt", "sb",
+"sc", "sh", "sk", "so", "sp", "ss", "st", "sv", "sz", "ta", "tc", "th",
+"ti", "tl", "tm", "tp", "tr", "u",  "uf", "uh", "ul", "vs", "wh", "xp",
+"yr", 0
+};
+
+int	lineno;		/* current line number in input file */
+const char *cfilename;	/* name of current file */
+int	nfiles;		/* number of files to process */
+int	fflag;		/* -f: ignore \f */
+int	sflag;		/* -s: ignore \s */
+int	ncmds;		/* size of knowncmds */
+int	slot;		/* slot in knowncmds found by binsrch */
+
+int
+main(int argc, char **argv)
+{
+	FILE *f;
+	int i;
+	char *cp;
+	char b1[4];
+
+	/* Figure out how many known commands there are */
+	while (knowncmds[ncmds])
+		ncmds++;
+	while (argc > 1 && argv[1][0] == '-') {
+		switch(argv[1][1]) {
+
+		/* -a: add pairs of macros */
+		case 'a':
+			i = strlen(argv[1]) - 2;
+			if (i % 6 != 0)
+				usage();
+			/* look for empty macro slots */
+			for (i=0; br[i].opbr; i++)
+				;
+			for (cp=argv[1]+3; cp[-1]; cp += 6) {
+				br[i].opbr = strncpy(malloc(3), cp, 2);
+				br[i].clbr = strncpy(malloc(3), cp+3, 2);
+				addmac(br[i].opbr);	/* knows pairs are also known cmds */
+				addmac(br[i].clbr);
+				i++;
+			}
+			break;
+
+		/* -c: add known commands */
+		case 'c':
+			i = strlen(argv[1]) - 2;
+			if (i % 3 != 0)
+				usage();
+			for (cp=argv[1]+3; cp[-1]; cp += 3) {
+				if (cp[2] && cp[2] != '.')
+					usage();
+				strncpy(b1, cp, 2);
+				b1[2] = '\0';
+				addmac(b1);
+			}
+			break;
+
+		/* -f: ignore font changes */
+		case 'f':
+			fflag = 1;
+			break;
+
+		/* -s: ignore size changes */
+		case 's':
+			sflag = 1;
+			break;
+		default:
+			usage();
+		}
+		argc--; argv++;
+	}
+
+	nfiles = argc - 1;
+
+	if (nfiles > 0) {
+		for (i=1; i<argc; i++) {
+			cfilename = argv[i];
+			f = fopen(cfilename, "r");
+			if (f == NULL)
+				warn("%s", cfilename);
+			else {
+				process(f);
+				fclose(f);
+			}
+		}
+	} else {
+		cfilename = "stdin";
+		process(stdin);
+	}
+	exit(0);
+}
+
+static void
+usage(void)
+{
+	fprintf(stderr,
+	"usage: checknr [-a.xx.yy.xx.yy...] [-c.xx.xx.xx...] [-s] [-f] file\n");
+	exit(1);
+}
+
+void
+process(FILE *f)
+{
+	int i, n;
+	char mac[5];	/* The current macro or nroff command */
+	int pl;
+	static char line[256];	/* the current line */
+
+	stktop = -1;
+	for (lineno = 1; fgets(line, sizeof line, f); lineno++) {
+		if (line[0] == '.') {
+			/*
+			 * find and isolate the macro/command name.
+			 */
+			strncpy(mac, line+1, 4);
+			if (isspace(mac[0])) {
+				pe(lineno);
+				printf("Empty command\n");
+			} else if (isspace(mac[1])) {
+				mac[1] = 0;
+			} else if (isspace(mac[2])) {
+				mac[2] = 0;
+			} else if (mac[0] != '\\' || mac[1] != '\"') {
+				pe(lineno);
+				printf("Command too long\n");
+			}
+
+			/*
+			 * Is it a known command?
+			 */
+			checkknown(mac);
+
+			/*
+			 * Should we add it?
+			 */
+			if (eq(mac, "de"))
+				addcmd(line);
+
+			chkcmd(line, mac);
+		}
+
+		/*
+		 * At this point we process the line looking
+		 * for \s and \f.
+		 */
+		for (i=0; line[i]; i++)
+			if (line[i]=='\\' && (i==0 || line[i-1]!='\\')) {
+				if (!sflag && line[++i]=='s') {
+					pl = line[++i];
+					if (isdigit(pl)) {
+						n = pl - '0';
+						pl = ' ';
+					} else
+						n = 0;
+					while (isdigit(line[++i]))
+						n = 10 * n + line[i] - '0';
+					i--;
+					if (n == 0) {
+						if (stk[stktop].opno == SZ) {
+							stktop--;
+						} else {
+							pe(lineno);
+							printf("unmatched \\s0\n");
+						}
+					} else {
+						stk[++stktop].opno = SZ;
+						stk[stktop].pl = pl;
+						stk[stktop].parm = n;
+						stk[stktop].lno = lineno;
+					}
+				} else if (!fflag && line[i]=='f') {
+					n = line[++i];
+					if (n == 'P') {
+						if (stk[stktop].opno == FT) {
+							stktop--;
+						} else {
+							pe(lineno);
+							printf("unmatched \\fP\n");
+						}
+					} else {
+						stk[++stktop].opno = FT;
+						stk[stktop].pl = 1;
+						stk[stktop].parm = n;
+						stk[stktop].lno = lineno;
+					}
+				}
+			}
+	}
+	/*
+	 * We've hit the end and look at all this stuff that hasn't been
+	 * matched yet!  Complain, complain.
+	 */
+	for (i=stktop; i>=0; i--) {
+		complain(i);
+	}
+}
+
+void
+complain(int i)
+{
+	pe(stk[i].lno);
+	printf("Unmatched ");
+	prop(i);
+	printf("\n");
+}
+
+void
+prop(int i)
+{
+	if (stk[i].pl == 0)
+		printf(".%s", br[stk[i].opno].opbr);
+	else switch(stk[i].opno) {
+	case SZ:
+		printf("\\s%c%d", stk[i].pl, stk[i].parm);
+		break;
+	case FT:
+		printf("\\f%c", stk[i].parm);
+		break;
+	default:
+		printf("Bug: stk[%d].opno = %d = .%s, .%s",
+			i, stk[i].opno, br[stk[i].opno].opbr, br[stk[i].opno].clbr);
+	}
+}
+
+void
+chkcmd(const char *line __unused, const char *mac)
+{
+	int i;
+
+	/*
+	 * Check to see if it matches top of stack.
+	 */
+	if (stktop >= 0 && eq(mac, br[stk[stktop].opno].clbr))
+		stktop--;	/* OK. Pop & forget */
+	else {
+		/* No. Maybe it's an opener */
+		for (i=0; br[i].opbr; i++) {
+			if (eq(mac, br[i].opbr)) {
+				/* Found. Push it. */
+				stktop++;
+				stk[stktop].opno = i;
+				stk[stktop].pl = 0;
+				stk[stktop].parm = 0;
+				stk[stktop].lno = lineno;
+				break;
+			}
+			/*
+			 * Maybe it's an unmatched closer.
+			 * NOTE: this depends on the fact
+			 * that none of the closers can be
+			 * openers too.
+			 */
+			if (eq(mac, br[i].clbr)) {
+				nomatch(mac);
+				break;
+			}
+		}
+	}
+}
+
+void
+nomatch(const char *mac)
+{
+	int i, j;
+
+	/*
+	 * Look for a match further down on stack
+	 * If we find one, it suggests that the stuff in
+	 * between is supposed to match itself.
+	 */
+	for (j=stktop; j>=0; j--)
+		if (eq(mac,br[stk[j].opno].clbr)) {
+			/* Found.  Make a good diagnostic. */
+			if (j == stktop-2) {
+				/*
+				 * Check for special case \fx..\fR and don't
+				 * complain.
+				 */
+				if (stk[j+1].opno==FT && stk[j+1].parm!='R'
+				 && stk[j+2].opno==FT && stk[j+2].parm=='R') {
+					stktop = j -1;
+					return;
+				}
+				/*
+				 * We have two unmatched frobs.  Chances are
+				 * they were intended to match, so we mention
+				 * them together.
+				 */
+				pe(stk[j+1].lno);
+				prop(j+1);
+				printf(" does not match %d: ", stk[j+2].lno);
+				prop(j+2);
+				printf("\n");
+			} else for (i=j+1; i <= stktop; i++) {
+				complain(i);
+			}
+			stktop = j-1;
+			return;
+		}
+	/* Didn't find one.  Throw this away. */
+	pe(lineno);
+	printf("Unmatched .%s\n", mac);
+}
+
+/* eq: are two strings equal? */
+int
+eq(const char *s1, const char *s2)
+{
+	return (strcmp(s1, s2) == 0);
+}
+
+/* print the first part of an error message, given the line number */
+void
+pe(int linen)
+{
+	if (nfiles > 1)
+		printf("%s: ", cfilename);
+	printf("%d: ", linen);
+}
+
+void
+checkknown(const char *mac)
+{
+
+	if (eq(mac, "."))
+		return;
+	if (binsrch(mac) >= 0)
+		return;
+	if (mac[0] == '\\' && mac[1] == '"')	/* comments */
+		return;
+
+	pe(lineno);
+	printf("Unknown command: .%s\n", mac);
+}
+
+/*
+ * We have a .de xx line in "line".  Add xx to the list of known commands.
+ */
+void
+addcmd(char *line)
+{
+	char *mac;
+
+	/* grab the macro being defined */
+	mac = line+4;
+	while (isspace(*mac))
+		mac++;
+	if (*mac == 0) {
+		pe(lineno);
+		printf("illegal define: %s\n", line);
+		return;
+	}
+	mac[2] = 0;
+	if (isspace(mac[1]) || mac[1] == '\\')
+		mac[1] = 0;
+	if (ncmds >= MAXCMDS) {
+		printf("Only %d known commands allowed\n", MAXCMDS);
+		exit(1);
+	}
+	addmac(mac);
+}
+
+/*
+ * Add mac to the list.  We should really have some kind of tree
+ * structure here but this is a quick-and-dirty job and I just don't
+ * have time to mess with it.  (I wonder if this will come back to haunt
+ * me someday?)  Anyway, I claim that .de is fairly rare in user
+ * nroff programs, and the register loop below is pretty fast.
+ */
+void
+addmac(const char *mac)
+{
+	const char **src, **dest, **loc;
+
+	if (binsrch(mac) >= 0){	/* it's OK to redefine something */
+#ifdef DEBUG
+		printf("binsrch(%s) -> already in table\n", mac);
+#endif
+		return;
+	}
+	/* binsrch sets slot as a side effect */
+#ifdef DEBUG
+printf("binsrch(%s) -> %d\n", mac, slot);
+#endif
+	loc = &knowncmds[slot];
+	src = &knowncmds[ncmds-1];
+	dest = src+1;
+	while (dest > loc)
+		*dest-- = *src--;
+	*loc = strcpy(malloc(3), mac);
+	ncmds++;
+#ifdef DEBUG
+printf("after: %s %s %s %s %s, %d cmds\n", knowncmds[slot-2], knowncmds[slot-1], knowncmds[slot], knowncmds[slot+1], knowncmds[slot+2], ncmds);
+#endif
+}
+
+/*
+ * Do a binary search in knowncmds for mac.
+ * If found, return the index.  If not, return -1.
+ */
+int
+binsrch(const char *mac)
+{
+	const char *p;	/* pointer to current cmd in list */
+	int d;		/* difference if any */
+	int mid;	/* mid point in binary search */
+	int top, bot;	/* boundaries of bin search, inclusive */
+
+	top = ncmds-1;
+	bot = 0;
+	while (top >= bot) {
+		mid = (top+bot)/2;
+		p = knowncmds[mid];
+		d = p[0] - mac[0];
+		if (d == 0)
+			d = p[1] - mac[1];
+		if (d == 0)
+			return mid;
+		if (d < 0)
+			bot = mid + 1;
+		else
+			top = mid - 1;
+	}
+	slot = bot;	/* place it would have gone */
+	return -1;
+}
diff --git a/doc_cmds/colcrt/colcrt.1 b/doc_cmds/colcrt/colcrt.1
new file mode 100644
index 0000000..cc2df02
--- /dev/null
+++ b/doc_cmds/colcrt/colcrt.1
@@ -0,0 +1,124 @@
+.\" Copyright (c) 1980, 1990, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)colcrt.1	8.1 (Berkeley) 6/30/93
+.\" $FreeBSD: src/usr.bin/colcrt/colcrt.1,v 1.13 2004/07/31 06:22:01 tjr Exp $
+.\"
+.Dd July 31, 2004
+.Dt COLCRT 1
+.Os
+.Sh NAME
+.Nm colcrt
+.Nd filter nroff output for CRT previewing
+.Sh SYNOPSIS
+.Nm
+.Op Fl
+.Op Fl \&2
+.Op Ar
+.Sh DESCRIPTION
+The
+.Nm
+utility provides virtual half-line and reverse line feed sequences
+for terminals without such capability, and on which overstriking
+is destructive.
+Half-line characters and underlining (changed to dashing `\-')
+are placed on new lines in between the normal output lines.
+.Pp
+The following options are available:
+.Bl -tag -width indent
+.It Fl
+Suppress all underlining.
+This option is especially useful for previewing
+.Em allboxed
+tables from
+.Xr tbl 1 .
+.It Fl 2
+Cause all half-lines to be printed, effectively double spacing the output.
+Normally, a minimal space output format is used which will suppress empty
+lines.
+The program never suppresses two consecutive empty lines, however.
+The
+.Fl 2
+option is useful for sending output to the line printer when the output
+contains superscripts and subscripts which would otherwise be invisible.
+.El
+.Sh ENVIRONMENT
+The
+.Ev LANG , LC_ALL
+and
+.Ev LC_CTYPE
+environment variables affect the execution of
+.Nm
+as described in
+.Xr environ 7 .
+.Sh EXAMPLES
+A typical use of
+.Nm
+would be
+.Bd -literal
+tbl exum2.n \&| nroff \-ms \&| colcrt \- \&| more
+.Ed
+.Sh DIAGNOSTICS
+.Ex -std
+.Sh SEE ALSO
+.Xr col 1 ,
+.Xr more 1 ,
+.Xr nroff 1 ,
+.Xr troff 1 ,
+.Xr ul 1
+.Sh BUGS
+Should fold underlines onto blanks even with the
+.Sq Fl
+option so that
+a true underline character would show.
+.Pp
+Can't back up more than 102 lines.
+.Pp
+General overstriking is lost;
+as a special case
+.Ql \&|
+overstruck with
+.Ql \-
+or underline becomes
+.Ql \&+ .
+.Pp
+Lines are trimmed to 132 characters.
+.Pp
+Some provision should be made for processing superscripts and subscripts
+in documents which are already double-spaced.
+.Pp
+Characters that take up more than one column position may not be
+underlined correctly.
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Bx 3.0 .
diff --git a/doc_cmds/colcrt/colcrt.c b/doc_cmds/colcrt/colcrt.c
new file mode 100644
index 0000000..2e5570b
--- /dev/null
+++ b/doc_cmds/colcrt/colcrt.c
@@ -0,0 +1,287 @@
+/*
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef lint
+static const char copyright[] =
+"@(#) Copyright (c) 1980, 1993\n\
+	The Regents of the University of California.  All rights reserved.\n";
+#endif
+
+#if 0
+#ifndef lint
+static char sccsid[] = "@(#)colcrt.c	8.1 (Berkeley) 6/6/93";
+#endif
+#endif
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/usr.bin/colcrt/colcrt.c,v 1.18 2004/07/31 06:22:57 tjr Exp $");
+
+#include <err.h>
+#include <locale.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <wchar.h>
+
+/*
+ * colcrt - replaces col for crts with new nroff esp. when using tbl.
+ * Bill Joy UCB July 14, 1977
+ *
+ * This filter uses a screen buffer, 267 half-lines by 132 columns.
+ * It interprets the up and down sequences generated by the new
+ * nroff when used with tbl and by \u \d and \r.
+ * General overstriking doesn't work correctly.
+ * Underlining is split onto multiple lines, etc.
+ *
+ * Option - suppresses all underlining.
+ * Option -2 forces printing of all half lines.
+ */
+
+wchar_t	page[267][132];
+
+int	outline = 1;
+int	outcol;
+
+char	suppresul;
+char	printall;
+
+static void	move(int, int);
+static void	pflush(int);
+static int	plus(wchar_t, wchar_t);
+static void	usage(void);
+
+int
+main(int argc, char *argv[])
+{
+	wint_t c;
+	wchar_t *cp, *dp;
+	int ch, i, w;
+
+	setlocale(LC_ALL, "");
+
+	while ((ch = getopt(argc, argv, "-2")) != -1)
+		switch (ch) {
+		case '-':
+			suppresul = 1;
+			break;
+		case '2':
+			printall = 1;
+			break;
+		default:
+			usage();
+		}
+	argc -= optind;
+	argv += optind;
+
+	do {
+		if (argc > 0) {
+			if (freopen(argv[0], "r", stdin) == NULL) {
+				fflush(stdout);
+				err(1, "%s", argv[0]);
+			}
+			argc--;
+			argv++;
+		}
+		for (;;) {
+			c = getwc(stdin);
+			if (c == WEOF) {
+				pflush(outline);
+				fflush(stdout);
+				break;
+			}
+			switch (c) {
+			case '\n':
+				if (outline >= 265)
+					pflush(62);
+				outline += 2;
+				outcol = 0;
+				continue;
+			case '\016':
+			case '\017':
+				continue;
+			case 033:
+				c = getwc(stdin);
+				switch (c) {
+				case '9':
+					if (outline >= 266)
+						pflush(62);
+					outline++;
+					continue;
+				case '8':
+					if (outline >= 1)
+						outline--;
+					continue;
+				case '7':
+					outline -= 2;
+					if (outline < 0)
+						outline = 0;
+					continue;
+				default:
+					continue;
+				}
+			case '\b':
+				if (outcol)
+					outcol--;
+				continue;
+			case '\t':
+				outcol += 8;
+				outcol &= ~7;
+				outcol--;
+				c = ' ';
+			default:
+				if ((w = wcwidth(c)) <= 0)
+					w = 1;	/* XXX */
+				if (outcol + w > 132) {
+					outcol += w;
+					continue;
+				}
+				cp = &page[outline][outcol];
+				outcol += w;
+				if (c == '_') {
+					if (suppresul)
+						continue;
+					cp += 132;
+					c = '-';
+				}
+				if (*cp == 0) {
+					for (i = 0; i < w; i++)
+						cp[i] = c;
+					dp = cp - (outcol - w);
+					for (cp--; cp >= dp && *cp == 0; cp--)
+						*cp = ' ';
+				} else {
+					if (plus(c, *cp) || plus(*cp, c))
+						*cp = '+';
+					else if (*cp == ' ' || *cp == 0) {
+						for (i = 1; i < w; i++)
+							if (cp[i] != ' ' &&
+							    cp[i] != 0)
+								goto cont;
+						for (i = 0; i < w; i++)
+							cp[i] = c;
+					}
+				}
+cont:
+				continue;
+			}
+		}
+		if (ferror(stdin))
+			err(1, NULL);
+	} while (argc > 0);
+	fflush(stdout);
+	exit(0);
+}
+
+static void
+usage(void)
+{
+	fprintf(stderr, "usage: colcrt [-] [-2] [file ...]\n");
+	exit(1);
+}
+
+static int
+plus(wchar_t c, wchar_t d)
+{
+
+	return ((c == '|' && d == '-') || d == '_');
+}
+
+static void
+pflush(int ol)
+{
+	static int first;
+	int i;
+	wchar_t *cp;
+	char lastomit;
+	int l, w;
+
+	l = ol;
+	lastomit = 0;
+	if (l > 266)
+		l = 266;
+	else
+		l |= 1;
+	for (i = first | 1; i < l; i++) {
+		move(i, i - 1);
+		move(i, i + 1);
+	}
+	for (i = first; i < l; i++) {
+		cp = page[i];
+		if (printall == 0 && lastomit == 0 && *cp == 0) {
+			lastomit = 1;
+			continue;
+		}
+		lastomit = 0;
+		while (*cp != L'\0') {
+			if ((w = wcwidth(*cp)) > 0) {
+				putwchar(*cp);
+				cp += w;
+			} else
+				cp++;
+		}
+		putwchar(L'\n');
+	}
+	wmemcpy(page[0], page[ol], (267 - ol) * 132);
+	wmemset(page[267- ol], L'\0', ol * 132);
+	outline -= ol;
+	outcol = 0;
+	first = 1;
+}
+
+static void
+move(int l, int m)
+{
+	wchar_t *cp, *dp;
+
+	for (cp = page[l], dp = page[m]; *cp; cp++, dp++) {
+		switch (*cp) {
+			case '|':
+				if (*dp != ' ' && *dp != '|' && *dp != 0)
+					return;
+				break;
+			case ' ':
+				break;
+			default:
+				return;
+		}
+	}
+	if (*cp == 0) {
+		for (cp = page[l], dp = page[m]; *cp; cp++, dp++)
+			if (*cp == '|')
+				*dp = '|';
+			else if (*dp == 0)
+				*dp = ' ';
+		page[l][0] = 0;
+	}
+}
diff --git a/doc_cmds/doc_cmds.plist b/doc_cmds/doc_cmds.plist
new file mode 100644
index 0000000..a9ea197
--- /dev/null
+++ b/doc_cmds/doc_cmds.plist
@@ -0,0 +1,72 @@
+<plist version="1.0">
+<array>
+<dict>
+	<key>OpenSourceProject</key>
+	<string>checknr</string>
+	<key>OpenSourceVersion</key>
+	<string>2004-09-18</string>
+	<key>OpenSourceWebsiteURL</key>
+	<string>http://www.freebsd.org/cgi/cvsweb.cgi/src/usr.bin/checknr/</string>
+	<key>OpenSourceCVS</key>
+	<string>cvs -d freebsdanoncvs@anoncvs.FreeBSD.org:/home/ncvs co checknr</string>
+	<key>OpenSourceImportDate</key>
+	<string>2004-09-18</string>
+	<key>OpenSourceLicense</key>
+	<string>BSD</string>
+	<key>OpenSourceLicenseFile</key>
+	<string>doc_cmds.txt</string>
+</dict>
+<dict>
+	<key>OpenSourceProject</key>
+	<string>colcrt</string>
+	<key>OpenSourceVersion</key>
+	<string>2004-09-18</string>
+	<key>OpenSourceWebsiteURL</key>
+	<string>http://www.freebsd.org/cgi/cvsweb.cgi/src/usr.bin/colcrt/</string>
+	<key>OpenSourceCVS</key>
+	<string>cvs -d freebsdanoncvs@anoncvs.FreeBSD.org:/home/ncvs co colcrt</string>
+	<key>OpenSourceImportDate</key>
+	<string>2004-09-18</string>
+	<key>OpenSourceLicense</key>
+	<string>BSD</string>
+	<key>OpenSourceLicenseFile</key>
+	<string>doc_cmds.txt</string>
+</dict>
+<dict>
+	<key>OpenSourceProject</key>
+	<string>getNAME</string>
+	<key>OpenSourceVersion</key>
+	<string>2004-09-18</string>
+	<key>OpenSourceWebsiteURL</key>
+	<string>http://www.freebsd.org/cgi/cvsweb.cgi/src/libexec/getNAME/</string>
+	<key>OpenSourceCVS</key>
+	<string>cvs -d freebsdanoncvs@anoncvs.FreeBSD.org:/home/ncvs co getNAME</string>
+	<key>OpenSourceImportDate</key>
+	<string>2004-09-18</string>
+	<key>OpenSourceLicense</key>
+	<string>BSD</string>
+	<key>OpenSourceLicenseFile</key>
+	<string>doc_cmds.txt</string>
+</dict>
+<dict>
+	<key>OpenSourceProject</key>
+	<string>makewhatis</string>
+	<key>OpenSourceVersion</key>
+	<string>2004-09-18</string>
+	<key>OpenSourceWebsiteURL</key>
+	<string>http://www.freebsd.org/cgi/cvsweb.cgi/src/usr.bin/makewhatis/</string>
+	<key>OpenSourceCVS</key>
+	<string>cvs -d freebsdanoncvs@anoncvs.FreeBSD.org:/home/ncvs co makewhatis</string>
+	<key>OpenSourceImportDate</key>
+	<string>2004-09-18</string>
+	<key>OpenSourceModifications</key>
+	<array>
+		<string>3806865</string>
+	</array>
+	<key>OpenSourceLicense</key>
+	<string>BSD</string>
+	<key>OpenSourceLicenseFile</key>
+	<string>doc_cmds.txt</string>
+</dict>
+</array>
+</plist>
diff --git a/doc_cmds/doc_cmds.txt b/doc_cmds/doc_cmds.txt
new file mode 100644
index 0000000..873a785
--- /dev/null
+++ b/doc_cmds/doc_cmds.txt
@@ -0,0 +1,134 @@
+checknr:
+
+/*
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+colcrt:
+
+/*
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+getNAME:
+
+/*-
+ * Copyright (c) 1980, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+makewhatis:
+
+/*-
+ * Copyright (c) 2002 John Rochester
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer,
+ *    in this position and unchanged.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
diff --git a/doc_cmds/doc_cmds.xcodeproj/project.pbxproj b/doc_cmds/doc_cmds.xcodeproj/project.pbxproj
new file mode 100644
index 0000000..ec9533d
--- /dev/null
+++ b/doc_cmds/doc_cmds.xcodeproj/project.pbxproj
@@ -0,0 +1,538 @@
+// !$*UTF8*$!
+{
+	archiveVersion = 1;
+	classes = {
+	};
+	objectVersion = 45;
+	objects = {
+
+/* Begin PBXAggregateTarget section */
+		FD91BA470FC2319F00643D04 /* Build All */ = {
+			isa = PBXAggregateTarget;
+			buildConfigurationList = FD91BA500FC231AB00643D04 /* Build configuration list for PBXAggregateTarget "Build All" */;
+			buildPhases = (
+			);
+			dependencies = (
+				FD91BA6B0FC231C500643D04 /* PBXTargetDependency */,
+				FD91BA690FC231C500643D04 /* PBXTargetDependency */,
+				FD91BA650FC231C500643D04 /* PBXTargetDependency */,
+				FD91BA930FC2330000643D04 /* PBXTargetDependency */,
+			);
+			name = "Build All";
+			productName = "Build All";
+		};
+		FD91BA900FC232FB00643D04 /* Other Files */ = {
+			isa = PBXAggregateTarget;
+			buildConfigurationList = FD91BAA00FC2331400643D04 /* Build configuration list for PBXAggregateTarget "Other Files" */;
+			buildPhases = (
+				FD91BA8F0FC232FB00643D04 /* man1 */,
+				FD91BAA60FC2338D00643D04 /* OpenSourceVersions */,
+				FD91BAA70FC2338D00643D04 /* OpenSourceLicenses */,
+			);
+			dependencies = (
+			);
+			name = "Other Files";
+			productName = Other;
+		};
+/* End PBXAggregateTarget section */
+
+/* Begin PBXBuildFile section */
+		FD91BA6C0FC231D500643D04 /* checknr.c in Sources */ = {isa = PBXBuildFile; fileRef = FD91BA270FC2311E00643D04 /* checknr.c */; };
+		FD91BA6D0FC231DA00643D04 /* colcrt.c in Sources */ = {isa = PBXBuildFile; fileRef = FD91BA2C0FC2311E00643D04 /* colcrt.c */; };
+		FD91BA6F0FC231EA00643D04 /* makewhatis.c in Sources */ = {isa = PBXBuildFile; fileRef = FD91BA3E0FC2311E00643D04 /* makewhatis.c */; };
+		FD91BA830FC2328800643D04 /* libz.dylib in Frameworks */ = {isa = PBXBuildFile; fileRef = FD91BA820FC2328800643D04 /* libz.dylib */; };
+		FD91BAA10FC2332800643D04 /* intro.1 in man1 */ = {isa = PBXBuildFile; fileRef = FD91BA440FC2316200643D04 /* intro.1 */; };
+		FD91BAA30FC2335800643D04 /* doc_cmds.plist in OpenSourceVersions */ = {isa = PBXBuildFile; fileRef = FD91BA2F0FC2311E00643D04 /* doc_cmds.plist */; };
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+/* End PBXBuildFile section */
+
+/* Begin PBXContainerItemProxy section */
+		FD91BA640FC231C500643D04 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = FD91BA090FC2310A00643D04 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = FD91BA600FC231BE00643D04;
+			remoteInfo = makewhatis;
+		};
+		FD91BA680FC231C500643D04 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = FD91BA090FC2310A00643D04 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = FD91BA540FC231B200643D04;
+			remoteInfo = colcrt;
+		};
+		FD91BA6A0FC231C500643D04 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = FD91BA090FC2310A00643D04 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = FD91BA4B0FC231AB00643D04;
+			remoteInfo = checknr;
+		};
+		FD91BA920FC2330000643D04 /* PBXContainerItemProxy */ = {
+			isa = PBXContainerItemProxy;
+			containerPortal = FD91BA090FC2310A00643D04 /* Project object */;
+			proxyType = 1;
+			remoteGlobalIDString = FD91BA900FC232FB00643D04;
+			remoteInfo = Other;
+		};
+/* End PBXContainerItemProxy section */
+
+/* Begin PBXCopyFilesBuildPhase section */
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+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 8;
+			dstPath = /usr/share/man/man1;
+			dstSubfolderSpec = 0;
+			files = (
+				FD91BAA10FC2332800643D04 /* intro.1 in man1 */,
+			);
+			name = man1;
+			runOnlyForDeploymentPostprocessing = 1;
+		};
+		FD91BAA60FC2338D00643D04 /* OpenSourceVersions */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 8;
+			dstPath = /usr/local/OpenSourceVersions;
+			dstSubfolderSpec = 0;
+			files = (
+				FD91BAA30FC2335800643D04 /* doc_cmds.plist in OpenSourceVersions */,
+			);
+			name = OpenSourceVersions;
+			runOnlyForDeploymentPostprocessing = 1;
+		};
+		FD91BAA70FC2338D00643D04 /* OpenSourceLicenses */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 8;
+			dstPath = /usr/local/OpenSourceLicenses;
+			dstSubfolderSpec = 0;
+			files = (
+				FD91BAA50FC2336F00643D04 /* doc_cmds.txt in OpenSourceLicenses */,
+			);
+			name = OpenSourceLicenses;
+			runOnlyForDeploymentPostprocessing = 1;
+		};
+		FD91BAAC0FC233B600643D04 /* CopyFiles */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 8;
+			dstPath = /usr/share/man/man1;
+			dstSubfolderSpec = 0;
+			files = (
+				FD91BAAD0FC233BB00643D04 /* checknr.1 in CopyFiles */,
+			);
+			runOnlyForDeploymentPostprocessing = 1;
+		};
+		FD91BAAF0FC233D600643D04 /* CopyFiles */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 8;
+			dstPath = /usr/share/man/man1;
+			dstSubfolderSpec = 0;
+			files = (
+				FD91BAB00FC233DD00643D04 /* colcrt.1 in CopyFiles */,
+			);
+			runOnlyForDeploymentPostprocessing = 1;
+		};
+		FD91BAB50FC2346000643D04 /* CopyFiles */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 8;
+			dstPath = /usr/share/man/man8;
+			dstSubfolderSpec = 0;
+			files = (
+				FD91BAB60FC2346F00643D04 /* makewhatis.8 in CopyFiles */,
+				FD91BAB70FC2346F00643D04 /* makewhatis.local.8 in CopyFiles */,
+			);
+			runOnlyForDeploymentPostprocessing = 1;
+		};
+		FDB4EC3D0FC32FA700F23EE6 /* CopyFiles */ = {
+			isa = PBXCopyFilesBuildPhase;
+			buildActionMask = 8;
+			dstPath = /usr/libexec;
+			dstSubfolderSpec = 0;
+			files = (
+				FDB4EC3B0FC32F8D00F23EE6 /* makewhatis.local.sh in CopyFiles */,
+			);
+			runOnlyForDeploymentPostprocessing = 1;
+		};
+/* End PBXCopyFilesBuildPhase section */
+
+/* Begin PBXFileReference section */
+		FD91BA260FC2311E00643D04 /* checknr.1 */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.man; path = checknr.1; sourceTree = "<group>"; };
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+		FD91BA2F0FC2311E00643D04 /* doc_cmds.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist; path = doc_cmds.plist; sourceTree = "<group>"; };
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+		FD91BA440FC2316200643D04 /* intro.1 */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.man; path = intro.1; sourceTree = "<group>"; };
+		FD91BA4C0FC231AB00643D04 /* checknr */ = {isa = PBXFileReference; explicitFileType = "compiled.mach-o.executable"; includeInIndex = 0; path = checknr; sourceTree = BUILT_PRODUCTS_DIR; };
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+
+/* Begin PBXFrameworksBuildPhase section */
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+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+		};
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+			isa = PBXFrameworksBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
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+		};
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+			files = (
+				FD91BA830FC2328800643D04 /* libz.dylib in Frameworks */,
+			);
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+		};
+/* End PBXFrameworksBuildPhase section */
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+/* Begin PBXGroup section */
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+			children = (
+				FD91BA150FC2311E00643D04 /* Source */,
+				FD91BA4D0FC231AB00643D04 /* Products */,
+				FD91BA820FC2328800643D04 /* libz.dylib */,
+			);
+			sourceTree = "<group>";
+		};
+		FD91BA150FC2311E00643D04 /* Source */ = {
+			isa = PBXGroup;
+			children = (
+				FD91BA250FC2311E00643D04 /* checknr */,
+				FD91BA2A0FC2311E00643D04 /* colcrt */,
+				FD91BA3A0FC2311E00643D04 /* makewhatis */,
+				FD91BA2F0FC2311E00643D04 /* doc_cmds.plist */,
+				FD91BA300FC2311E00643D04 /* doc_cmds.txt */,
+				FD91BA440FC2316200643D04 /* intro.1 */,
+			);
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+			sourceTree = "<group>";
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+			isa = PBXGroup;
+			children = (
+				FD91BA260FC2311E00643D04 /* checknr.1 */,
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+			sourceTree = "<group>";
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+			children = (
+				FD91BA2B0FC2311E00643D04 /* colcrt.1 */,
+				FD91BA2C0FC2311E00643D04 /* colcrt.c */,
+			);
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+			sourceTree = "<group>";
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+			isa = PBXGroup;
+			children = (
+				FD91BA3D0FC2311E00643D04 /* makewhatis.8 */,
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+				FD91BA400FC2311E00643D04 /* makewhatis.local.sh */,
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+			sourceTree = "<group>";
+		};
+		FD91BA4D0FC231AB00643D04 /* Products */ = {
+			isa = PBXGroup;
+			children = (
+				FD91BA4C0FC231AB00643D04 /* checknr */,
+				FD91BA550FC231B200643D04 /* colcrt */,
+				FD91BA610FC231BE00643D04 /* makewhatis */,
+			);
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+			sourceTree = "<group>";
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+/* Begin PBXNativeTarget section */
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+			buildConfigurationList = FD91BA510FC231AB00643D04 /* Build configuration list for PBXNativeTarget "checknr" */;
+			buildPhases = (
+				FD91BA490FC231AB00643D04 /* Sources */,
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+				FD91BAAC0FC233B600643D04 /* CopyFiles */,
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+		FD91BA090FC2310A00643D04 /* Project object */ = {
+			isa = PBXProject;
+			buildConfigurationList = FD91BA0C0FC2310A00643D04 /* Build configuration list for PBXProject "doc_cmds" */;
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+				FD91BA600FC231BE00643D04 /* makewhatis */,
+				FD91BA900FC232FB00643D04 /* Other Files */,
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+		FD91BAC90FC2359F00643D04 /* ShellScript */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 8;
+			files = (
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+			inputPaths = (
+				"$(DSTROOT)/usr/libexec/makewhatis.local.sh",
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+				"$(DSTROOT)/usr/libexec/makewhatis.local",
+			);
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+			shellPath = /bin/sh;
+			shellScript = "set -x\n/bin/mv ${SCRIPT_INPUT_FILE_0} ${SCRIPT_OUTPUT_FILE_0}\n/bin/chmod +x ${SCRIPT_OUTPUT_FILE_0}";
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+			isa = PBXSourcesBuildPhase;
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+			files = (
+				FD91BA6C0FC231D500643D04 /* checknr.c in Sources */,
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+
+/* Begin XCBuildConfiguration section */
+		FD91BA0B0FC2310A00643D04 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				ALWAYS_SEARCH_USER_PATHS = NO;
+				ARCHS = "$(ARCHS_STANDARD)";
+				CODE_SIGN_IDENTITY = "-";
+				COPY_PHASE_STRIP = YES;
+				CURRENT_PROJECT_VERSION = "$(RC_ProjectSourceVersion)";
+				DEAD_CODE_STRIPPING = YES;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				GCC_ENABLE_FIX_AND_CONTINUE = NO;
+				GCC_MODEL_TUNING = "";
+				PREBINDING = NO;
+				USE_HEADERMAP = NO;
+				VERSIONING_SYSTEM = "apple-generic";
+				VERSION_INFO_PREFIX = __;
+				ZERO_LINK = NO;
+			};
+			name = Release;
+		};
+		FD91BA480FC2319F00643D04 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				COPY_PHASE_STRIP = YES;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				GCC_ENABLE_FIX_AND_CONTINUE = NO;
+				PRODUCT_NAME = "Build All";
+				ZERO_LINK = NO;
+			};
+			name = Release;
+		};
+		FD91BA4F0FC231AB00643D04 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				GCC_PREPROCESSOR_DEFINITIONS = "__FBSDID=__RCSID";
+				INSTALL_PATH = /usr/bin;
+				PRODUCT_NAME = checknr;
+			};
+			name = Release;
+		};
+		FD91BA570FC231B200643D04 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				GCC_PREPROCESSOR_DEFINITIONS = "__FBSDID=__RCSID";
+				INSTALL_PATH = /usr/bin;
+				PRODUCT_NAME = colcrt;
+			};
+			name = Release;
+		};
+		FD91BA630FC231BF00643D04 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				GCC_PREPROCESSOR_DEFINITIONS = "__FBSDID=__RCSID";
+				INSTALL_PATH = /usr/libexec;
+				PRODUCT_NAME = makewhatis;
+			};
+			name = Release;
+		};
+		FD91BA910FC232FB00643D04 /* Release */ = {
+			isa = XCBuildConfiguration;
+			buildSettings = {
+				COPY_PHASE_STRIP = YES;
+				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				GCC_ENABLE_FIX_AND_CONTINUE = NO;
+				PRODUCT_NAME = Other;
+				ZERO_LINK = NO;
+			};
+			name = Release;
+		};
+/* End XCBuildConfiguration section */
+
+/* Begin XCConfigurationList section */
+		FD91BA0C0FC2310A00643D04 /* Build configuration list for PBXProject "doc_cmds" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				FD91BA0B0FC2310A00643D04 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		FD91BA500FC231AB00643D04 /* Build configuration list for PBXAggregateTarget "Build All" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				FD91BA480FC2319F00643D04 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		FD91BA510FC231AB00643D04 /* Build configuration list for PBXNativeTarget "checknr" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				FD91BA4F0FC231AB00643D04 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		FD91BA720FC2320800643D04 /* Build configuration list for PBXNativeTarget "colcrt" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				FD91BA570FC231B200643D04 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		FD91BA740FC2320800643D04 /* Build configuration list for PBXNativeTarget "makewhatis" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				FD91BA630FC231BF00643D04 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+		FD91BAA00FC2331400643D04 /* Build configuration list for PBXAggregateTarget "Other Files" */ = {
+			isa = XCConfigurationList;
+			buildConfigurations = (
+				FD91BA910FC232FB00643D04 /* Release */,
+			);
+			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
+		};
+/* End XCConfigurationList section */
+	};
+	rootObject = FD91BA090FC2310A00643D04 /* Project object */;
+}
diff --git a/doc_cmds/intro.1 b/doc_cmds/intro.1
new file mode 100644
index 0000000..98c603c
--- /dev/null
+++ b/doc_cmds/intro.1
@@ -0,0 +1,74 @@
+.\"	$NetBSD: intro.1,v 1.4 1994/11/30 08:35:00 jtc Exp $
+.\"
+.\" Copyright (c) 1991, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"	This product includes software developed by the University of
+.\"	California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"     @(#)intro.1	8.2 (Berkeley) 12/30/93
+.\"
+.Dd December 30, 1993
+.Dt INTRO 1
+.Os
+.Sh NAME
+.Nm intro
+.Nd introduction to general commands (tools and utilities)
+.Sh DESCRIPTION
+Section one of the manual contains most of the commands
+which comprise the
+.Bx
+user environment.
+Some of the commands included in section one are
+text editors, command shell interpreters,
+searching and sorting tools,
+file manipulation commands
+system status commands,
+remote file copy commands, mail commands,
+compilers and compiler tools,
+formatted output tools,
+and line printer commands.
+.Pp
+All commands set a status value upon exit which may be tested
+to see if the command completed normally.
+The exit values and their meanings are explained in the individual
+manuals.  Traditionally, the value 0 signifies successful
+completion of the command.
+.Sh SEE ALSO
+.Xr man 1 ,
+.Xr intro 2 ,
+.Xr intro 4 ,
+.Xr intro 8 ,
+.Pp
+Tutorials in the
+.%T "UNIX User's Manual Supplementary Documents" .
+.Sh HISTORY
+A
+.Nm intro
+manual appeared in
+.At v6 .
diff --git a/doc_cmds/makewhatis/makewhatis.8 b/doc_cmds/makewhatis/makewhatis.8
new file mode 100644
index 0000000..5c59b96
--- /dev/null
+++ b/doc_cmds/makewhatis/makewhatis.8
@@ -0,0 +1,133 @@
+.\" Copyright (c) 2002 John Rochester
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD: src/usr.bin/makewhatis/makewhatis.1,v 1.3 2002/05/18 15:39:56 ru Exp $
+.\"
+.Dd May 12, 2002
+.Dt MAKEWHATIS 8
+.Os
+.Sh NAME
+.Nm makewhatis
+.Nd "create whatis database"
+.Sh SYNOPSIS
+.Nm
+.Op Fl a
+.Op Fl i Ar column
+.Op Fl n Ar name
+.Op Fl o Ar file
+.Op Fl v
+.Op Fl L
+.Op Ar directories ...
+.Sh DESCRIPTION
+The
+.Nm
+utility collects the names and short descriptions from all the unformatted
+man pages in the
+.Ar directories
+and puts them into a file used by the
+.Xr whatis 1
+and
+.Xr apropos 1
+commands.
+Directories may be separated by colons instead of spaces.
+If no
+.Ar directories
+are specified, the contents of the
+.Ev MANPATH
+environment variable will be used, or if that is not set, the default directory
+.Pa /usr/share/man
+will be processed.
+.Pp
+The options are as follows:
+.Bl -tag -width ".Fl i Ar column"
+.It Fl a
+Appends to the output file(s) instead of replacing them.
+The output
+will be sorted with duplicate lines removed, but may have obsolete
+entries.
+.It Fl i Ar column
+Indents the description by
+.Ar column
+characters.
+The default value is 24.
+.It Fl n Ar name
+Uses
+.Ar name
+instead of
+.Pa whatis .
+.It Fl o Ar file
+Outputs all lines to the
+.Ar file
+instead of
+.Pa */man/whatis .
+.It Fl v
+Makes
+.Nm
+more verbose about what it is doing.
+.It Fl L
+Process only localized subdirectories corresponding to the locale specified
+in the standard environment variables.
+.El
+.Sh ENVIRONMENT
+.Bl -tag -width ".Ev MANPATH"
+.It Ev LC_ALL , LC_CTYPE , LANG
+These variables control what subdirectories will be processed if the
+.Fl L
+option is used.
+.It Ev MACHINE
+If set, its value is used to override the current
+machine type when searching machine specific subdirectories.
+.It Ev MANPATH
+Determines the set of directories to be processed if none are given on
+the command line.
+.El
+.Sh FILES
+.Bl -tag -width ".Pa /usr/share/man" -compact
+.It Pa /usr/share/man
+Default directory to process if the
+.Ev MANPATH
+environment variable is not set.
+.It Pa */man/whatis
+The default output file.
+.El
+.Sh DIAGNOSTICS
+.Ex -std
+.Sh SEE ALSO
+.Xr apropos 1 ,
+.Xr whatis 1
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Fx 2.1 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+program was originally written in Perl and was contributed by
+.An Wolfram Schneider .
+The current version of
+.Nm
+was rewritten in C by
+.An John Rochester .
diff --git a/doc_cmds/makewhatis/makewhatis.c b/doc_cmds/makewhatis/makewhatis.c
new file mode 100644
index 0000000..1a98842
--- /dev/null
+++ b/doc_cmds/makewhatis/makewhatis.c
@@ -0,0 +1,1094 @@
+/*-
+ * Copyright (c) 2002 John Rochester
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer,
+ *    in this position and unchanged.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD: src/usr.bin/makewhatis/makewhatis.c,v 1.9 2002/09/04 23:29:04 dwmalone Exp $");
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/param.h>
+#include <sys/queue.h>
+
+/* Workaround for missing #define in sys/queue.h (3806865) */
+#ifndef SLIST_HEAD_INITIALIZER
+#define SLIST_HEAD_INITIALIZER(head) { NULL }
+#endif
+
+#include <ctype.h>
+#include <dirent.h>
+#include <err.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stringlist.h>
+#include <unistd.h>
+#include <zlib.h>
+
+#define DEFAULT_MANPATH		"/usr/share/man"
+#define LINE_ALLOC		4096
+
+static char blank[] = 		"";
+
+/*
+ * Information collected about each man page in a section.
+ */
+struct page_info {
+	char *	filename;
+	char *	name;
+	char *	suffix;
+	int	gzipped;
+	ino_t	inode;
+};
+
+/*
+ * An entry kept for each visited directory.
+ */
+struct visited_dir {
+	dev_t		device;
+	ino_t		inode;
+	SLIST_ENTRY(visited_dir)	next;
+};
+
+/*
+ * an expanding string
+ */
+struct sbuf {
+	char *	content;		/* the start of the buffer */
+	char *	end;			/* just past the end of the content */
+	char *	last;			/* the last allocated character */
+};
+
+/*
+ * Removes the last amount characters from the sbuf.
+ */
+#define sbuf_retract(sbuf, amount)	\
+	((sbuf)->end -= (amount))
+/*
+ * Returns the length of the sbuf content.
+ */
+#define sbuf_length(sbuf)		\
+	((sbuf)->end - (sbuf)->content)
+
+typedef char *edited_copy(char *from, char *to, int length);
+
+static int append;			/* -a flag: append to existing whatis */
+static int verbose;			/* -v flag: be verbose with warnings */
+static int indent = 24;			/* -i option: description indentation */
+static const char *whatis_name="whatis";/* -n option: the name */
+static char *common_output;		/* -o option: the single output file */
+static char *locale;			/* user's locale if -L is used */
+static char *lang_locale;		/* short form of locale */
+#ifndef __APPLE__
+static const char *machine;
+#endif /* !__APPLE__ */
+
+static int exit_code;			/* exit code to use when finished */
+static SLIST_HEAD(, visited_dir) visited_dirs =
+    SLIST_HEAD_INITIALIZER(visited_dirs);
+
+/*
+ * While the whatis line is being formed, it is stored in whatis_proto.
+ * When finished, it is reformatted into whatis_final and then appended
+ * to whatis_lines.
+ */
+static struct sbuf *whatis_proto;
+static struct sbuf *whatis_final;
+static StringList *whatis_lines;	/* collected output lines */
+
+static char tmp_file[MAXPATHLEN];	/* path of temporary file, if any */
+static char tmp_rel_file[MAXPATHLEN];
+
+/* A set of possible names for the NAME man page section */
+static const char *name_section_titles[] = {
+	"NAME", "Name", "NAMN", "BEZEICHNUNG", "\xcc\xbe\xbe\xce",
+	"\xee\xe1\xfa\xf7\xe1\xee\xe9\xe5", NULL
+};
+
+/* A subset of the mdoc(7) commands to ignore */
+static char mdoc_commands[] = "ArDvErEvFlLiNmPa";
+
+/*
+ * Frees a struct page_info and its content.
+ */
+static void
+free_page_info(struct page_info *info)
+{
+	free(info->filename);
+	free(info->name);
+	free(info->suffix);
+	free(info);
+}
+
+/*
+ * Allocates and fills in a new struct page_info given the
+ * name of the man section directory and the dirent of the file.
+ * If the file is not a man page, returns NULL.
+ */
+static struct page_info *
+new_page_info(char *dir, struct dirent *dirent)
+{
+	struct page_info *info;
+	int basename_length;
+	char *suffix;
+	struct stat st;
+
+	info = (struct page_info *) malloc(sizeof(struct page_info));
+	if (info == NULL)
+		err(1, "malloc");
+	basename_length = strlen(dirent->d_name);
+	suffix = &dirent->d_name[basename_length];
+	asprintf(&info->filename, "%s/%s", dir, dirent->d_name);
+	if ((info->gzipped = basename_length >= 4 && strcmp(&dirent->d_name[basename_length - 3], ".gz") == 0)) {
+		suffix -= 3;
+		*suffix = '\0';
+	}
+	for (;;) {
+		if (--suffix == dirent->d_name || !isalnum(*suffix)) {
+			if (*suffix == '.')
+				break;
+			if (verbose)
+				warnx("%s: invalid man page name", info->filename);
+			free(info->filename);
+			free(info);
+			return NULL;
+		}
+	}
+	*suffix++ = '\0';
+	info->name = strdup(dirent->d_name);
+	info->suffix = strdup(suffix);
+	if (stat(info->filename, &st) < 0) {
+		warn("%s", info->filename);
+		free_page_info(info);
+		return NULL;
+	}
+	if (!S_ISREG(st.st_mode)) {
+		if (verbose && !S_ISDIR(st.st_mode))
+			warnx("%s: not a regular file", info->filename);
+		free_page_info(info);
+		return NULL;
+	}
+	info->inode = st.st_ino;
+	return info;
+}
+
+/*
+ * Reset an sbuf's length to 0.
+ */
+static void
+sbuf_clear(struct sbuf *sbuf)
+{
+	sbuf->end = sbuf->content;
+}
+
+/*
+ * Allocate a new sbuf.
+ */
+static struct sbuf *
+new_sbuf(void)
+{
+	struct sbuf *sbuf = (struct sbuf *) malloc(sizeof(struct sbuf));
+	sbuf->content = (char *) malloc(LINE_ALLOC);
+	sbuf->last = sbuf->content + LINE_ALLOC - 1;
+	sbuf_clear(sbuf);
+	return sbuf;
+}
+
+/*
+ * Ensure that there is enough room in the sbuf for nchars more characters.
+ */
+static void
+sbuf_need(struct sbuf *sbuf, int nchars)
+{
+	char *new_content;
+	size_t size, cntsize;
+
+	/* double the size of the allocation until the buffer is big enough */
+	while (sbuf->end + nchars > sbuf->last) {
+		size = sbuf->last + 1 - sbuf->content;
+		size *= 2;
+		cntsize = sbuf->end - sbuf->content;
+
+		new_content = (char *)malloc(size);
+		memcpy(new_content, sbuf->content, cntsize);
+		free(sbuf->content);
+		sbuf->content = new_content;
+		sbuf->end = new_content + cntsize;
+		sbuf->last = new_content + size - 1;
+	}
+}
+
+/*
+ * Appends a string of a given length to the sbuf.
+ */
+static void
+sbuf_append(struct sbuf *sbuf, const char *text, int length)
+{
+	if (length > 0) {
+		sbuf_need(sbuf, length);
+		memcpy(sbuf->end, text, length);
+		sbuf->end += length;
+	}
+}
+
+/*
+ * Appends a null-terminated string to the sbuf.
+ */
+static void
+sbuf_append_str(struct sbuf *sbuf, char *text)
+{
+	sbuf_append(sbuf, text, strlen(text));
+}
+
+/*
+ * Appends an edited null-terminated string to the sbuf.
+ */
+static void
+sbuf_append_edited(struct sbuf *sbuf, char *text, edited_copy copy)
+{
+	int length = strlen(text);
+	if (length > 0) {
+		sbuf_need(sbuf, length);
+		sbuf->end = copy(text, sbuf->end, length);
+	}
+}
+
+/*
+ * Strips any of a set of chars from the end of the sbuf.
+ */
+static void
+sbuf_strip(struct sbuf *sbuf, const char *set)
+{
+	while (sbuf->end > sbuf->content && strchr(set, sbuf->end[-1]) != NULL)
+		sbuf->end--;
+}
+
+/*
+ * Returns the null-terminated string built by the sbuf.
+ */
+static char *
+sbuf_content(struct sbuf *sbuf)
+{
+	*sbuf->end = '\0';
+	return sbuf->content;
+}
+
+/*
+ * Returns true if no man page exists in the directory with
+ * any of the names in the StringList.
+ */
+static int
+no_page_exists(char *dir, StringList *names, char *suffix)
+{
+	char path[MAXPATHLEN];
+	size_t i;
+
+	for (i = 0; i < names->sl_cur; i++) {
+		snprintf(path, sizeof path, "%s/%s.%s.gz", dir, names->sl_str[i], suffix);
+		if (access(path, F_OK) < 0) {
+			path[strlen(path) - 3] = '\0';
+			if (access(path, F_OK) < 0)
+				continue;
+		}
+		return 0;
+	}
+	return 1;
+}
+
+static void
+trap_signal(int sig __unused)
+{
+	if (tmp_file[0] != '\0')
+		unlink(tmp_file);
+	exit(1);
+}
+
+/*
+ * Attempts to open an output file.  Returns NULL if unsuccessful.
+ */
+static FILE *
+open_output(char *name, int dir_fd, char *rel_name)
+{
+	FILE *output;
+	int output_fd;
+	struct stat statbuf;
+
+	whatis_lines = sl_init();
+	if (append) {
+		char line[LINE_ALLOC];
+
+		output_fd = openat(dir_fd, rel_name, O_RDONLY);
+		if (output_fd == -1) {
+			warn("%s", name);
+			exit_code = 1;
+			return NULL;
+		}
+		output = fdopen(output_fd, "r");
+		if (output == NULL) {
+			warn("%s", name);
+			exit_code = 1;
+			return NULL;
+		}
+		while (fgets(line, sizeof line, output) != NULL) {
+			line[strlen(line) - 1] = '\0';
+			sl_add(whatis_lines, strdup(line));
+		}
+		fclose(output);
+	}
+	if (common_output == NULL) {
+		snprintf(tmp_file, sizeof tmp_file, "%s.tmp", name);
+		snprintf(tmp_rel_file, sizeof tmp_rel_file, "%s.tmp", rel_name);
+		name = tmp_file;
+		rel_name = tmp_rel_file;
+	}
+	/* Bail out if the file is actually a symlink or has another link.
+	 * This script can run as root and we don't want to risk writing
+	 * into a random location.
+	 * See rdar://problem/55280616
+	 */
+	output_fd = openat(dir_fd, rel_name, O_WRONLY | O_NOFOLLOW | O_CREAT | O_TRUNC, 0644);
+	if (output_fd == -1) {
+		warn("%s", name);
+		exit_code = 1;
+		return NULL;
+	}
+	if (fstat(output_fd, &statbuf) == -1) {
+		warn("%s: unable to stat", name);
+		close(output_fd);
+		exit_code = 1;
+		return NULL;
+	}
+	if (statbuf.st_nlink > 1) {
+		warnx("%s: is a hardlink", name);
+		close(output_fd);
+		exit_code = 1;
+		return NULL;
+	}
+	output = fdopen(output_fd, "w");
+	if (output == NULL) {
+		warn("%s", name);
+		exit_code = 1;
+		return NULL;
+	}
+	return output;
+}
+
+static int
+linesort(const void *a, const void *b)
+{
+	return strcmp((*(const char * const *)a), (*(const char * const *)b));
+}
+
+/*
+ * Writes the unique sorted lines to the output file.
+ */
+static void
+finish_output(FILE *output, char *name, int dir_fd, char *rel_name)
+{
+	size_t i;
+	char *prev = NULL;
+
+	qsort(whatis_lines->sl_str, whatis_lines->sl_cur, sizeof(char *), linesort);
+	for (i = 0; i < whatis_lines->sl_cur; i++) {
+		char *line = whatis_lines->sl_str[i];
+		if (i > 0 && strcmp(line, prev) == 0)
+			continue;
+		prev = line;
+		fputs(line, output);
+		putc('\n', output);
+	}
+	fclose(output);
+	sl_free(whatis_lines, 1);
+	if (common_output == NULL) {
+		renameat(dir_fd, tmp_rel_file, dir_fd, rel_name);
+		unlinkat(dir_fd, tmp_rel_file, 0);
+	}
+}
+
+static FILE *
+open_whatis(char *mandir, int mandir_fd)
+{
+	char filename[MAXPATHLEN];
+
+	snprintf(filename, sizeof filename, "%s/%s", mandir, whatis_name);
+	return open_output(filename, mandir_fd, whatis_name);
+}
+
+static void
+finish_whatis(FILE *output, char *mandir, int mandir_fd)
+{
+	char filename[MAXPATHLEN];
+
+	snprintf(filename, sizeof filename, "%s/%s", mandir, whatis_name);
+	finish_output(output, filename, mandir_fd, whatis_name);
+}
+
+/*
+ * Tests to see if the given directory has already been visited.
+ */
+static int
+already_visited(char *dir)
+{
+	struct stat st;
+	struct visited_dir *visit;
+
+	if (stat(dir, &st) < 0) {
+		warn("%s", dir);
+		exit_code = 1;
+		return 1;
+	}
+	SLIST_FOREACH(visit, &visited_dirs, next) {
+		if (visit->inode == st.st_ino &&
+		    visit->device == st.st_dev) {
+			warnx("already visited %s", dir);
+			return 1;
+		}
+	}
+	visit = (struct visited_dir *) malloc(sizeof(struct visited_dir));
+	visit->device = st.st_dev;
+	visit->inode = st.st_ino;
+	SLIST_INSERT_HEAD(&visited_dirs, visit, next);
+	return 0;
+}
+
+/*
+ * Removes trailing spaces from a string, returning a pointer to just
+ * beyond the new last character.
+ */
+static char *
+trim_rhs(char *str)
+{
+	char *rhs = &str[strlen(str)];
+	while (--rhs > str && isspace(*rhs))
+		;
+	*++rhs = '\0';
+	return rhs;
+}
+
+/*
+ * Returns a pointer to the next non-space character in the string.
+ */
+static char *
+skip_spaces(char *s)
+{
+	while (*s != '\0' && isspace(*s))
+		s++;
+	return s;
+}
+
+/*
+ * Returns whether the string contains only digits.
+ */
+static int
+only_digits(char *line)
+{
+	if (!isdigit(*line++))
+		return 0;
+	while (isdigit(*line))
+		line++;
+	return *line == '\0';
+}
+
+/*
+ * Returns whether the line is of one of the forms:
+ *	.Sh NAME
+ *	.Sh "NAME"
+ *	etc.
+ * assuming that section_start is ".Sh".
+ */
+static int
+name_section_line(char *line, const char *section_start)
+{
+	char *rhs;
+	const char **title;
+
+	if (strncmp(line, section_start, 3) != 0)
+		return 0;
+	line = skip_spaces(line + 3);
+	rhs = trim_rhs(line);
+	if (*line == '"') {
+		line++;
+		if (*--rhs == '"')
+			*rhs = '\0';
+	}
+	for (title = name_section_titles; *title != NULL; title++)
+		if (strcmp(*title, line) == 0)
+			return 1;
+	return 0;
+}
+
+/*
+ * Copies characters while removing the most common nroff/troff
+ * markup:
+ *	\(em, \(mi, \s[+-N], \&
+ *	\fF, \f(fo, \f[font]
+ *	\*s, \*(st, \*[stringvar]
+ */
+static char *
+de_nroff_copy(char *from, char *to, int fromlen)
+{
+	char *from_end = &from[fromlen];
+	while (from < from_end) {
+		switch (*from) {
+		case '\\':
+			switch (*++from) {
+			case '(':
+				if (strncmp(&from[1], "em", 2) == 0 ||
+						strncmp(&from[1], "mi", 2) == 0) {
+					from += 3;
+					continue;
+				}
+				break;
+			case 's':
+				if (*++from == '-')
+					from++;
+				while (isdigit(*from))
+					from++;
+				continue;
+			case 'f':
+			case '*':
+				if (*++from == '(')
+					from += 3;
+				else if (*from == '[') {
+					while (*++from != ']' && from < from_end);
+					from++;
+				} else
+					from++;
+				continue;
+			case '&':
+				from++;
+				continue;
+			}
+			break;
+		}
+		*to++ = *from++;
+	}
+	return to;
+}
+
+/*
+ * Appends a string with the nroff formatting removed.
+ */
+static void
+add_nroff(char *text)
+{
+	sbuf_append_edited(whatis_proto, text, de_nroff_copy);
+}
+
+/*
+ * Appends "name(suffix), " to whatis_final.
+ */
+static void
+add_whatis_name(char *name, char *suffix)
+{
+	if (*name != '\0') {
+		sbuf_append_str(whatis_final, name);
+		sbuf_append(whatis_final, "(", 1);
+		sbuf_append_str(whatis_final, suffix);
+		sbuf_append(whatis_final, "), ", 3);
+	}
+}
+
+/*
+ * Processes an old-style man(7) line.  This ignores commands with only
+ * a single number argument.
+ */
+static void
+process_man_line(char *line)
+{
+	if (*line == '.') {
+		while (isalpha(*++line))
+			;
+		line = skip_spaces(line);
+		if (only_digits(line))
+			return;
+	} else
+		line = skip_spaces(line);
+#ifdef __APPLE__
+	/* 4454557 */
+	if (*line == '"')
+		++line;
+#endif /* __APPLE__ */
+	if (*line != '\0') {
+		add_nroff(line);
+		sbuf_append(whatis_proto, " ", 1);
+	}
+}
+
+/*
+ * Processes a new-style mdoc(7) line.
+ */
+static void
+process_mdoc_line(char *line)
+{
+	int xref;
+	int arg = 0;
+	char *line_end = &line[strlen(line)];
+	int orig_length = sbuf_length(whatis_proto);
+	char *next;
+
+	if (*line == '\0')
+		return;
+	if (line[0] != '.' || !isupper(line[1]) || !islower(line[2])) {
+		add_nroff(skip_spaces(line));
+		sbuf_append(whatis_proto, " ", 1);
+		return;
+	}
+	xref = strncmp(line, ".Xr", 3) == 0;
+	line += 3;
+	while ((line = skip_spaces(line)) < line_end) {
+		if (*line == '"') {
+			next = ++line;
+			for (;;) {
+				next = strchr(next, '"');
+				if (next == NULL)
+					break;
+				memmove(next, next + 1, strlen(next));
+				line_end--;
+				if (*next != '"')
+					break;
+				next++;
+			}
+		} else
+			next = strpbrk(line, " \t");
+		if (next != NULL)
+			*next++ = '\0';
+		else
+			next = line_end;
+		if (isupper(*line) && islower(line[1]) && line[2] == '\0') {
+			if (strcmp(line, "Ns") == 0) {
+				arg = 0;
+				line = next;
+				continue;
+			}
+			if (strstr(mdoc_commands, line) != NULL) {
+				line = next;
+				continue;
+			}
+		}
+		if (arg > 0 && strchr(",.:;?!)]", *line) == 0) {
+			if (xref) {
+				sbuf_append(whatis_proto, "(", 1);
+				add_nroff(line);
+				sbuf_append(whatis_proto, ")", 1);
+				xref = 0;
+				line = blank;
+			} else
+				sbuf_append(whatis_proto, " ", 1);
+		}
+		add_nroff(line);
+		arg++;
+		line = next;
+	}
+	if (sbuf_length(whatis_proto) > orig_length)
+		sbuf_append(whatis_proto, " ", 1);
+}
+
+/*
+ * Collects a list of comma-separated names from the text.
+ */
+static void
+collect_names(StringList *names, char *text)
+{
+	char *arg;
+
+	for (;;) {
+		arg = text;
+		text = strchr(text, ',');
+		if (text != NULL)
+			*text++ = '\0';
+		sl_add(names, arg);
+		if (text == NULL)
+			return;
+		if (*text == ' ')
+			text++;
+	}
+}
+
+enum { STATE_UNKNOWN, STATE_MANSTYLE, STATE_MDOCNAME, STATE_MDOCDESC };
+
+/*
+ * Processes a man page source into a single whatis line and adds it
+ * to whatis_lines.
+ */
+static void
+process_page(struct page_info *page, char *section_dir)
+{
+	gzFile *in;
+	char buffer[4096];
+	char *line;
+	StringList *names;
+	char *descr;
+	int state = STATE_UNKNOWN;
+	size_t i;
+
+	sbuf_clear(whatis_proto);
+	if ((in = gzopen(page->filename, "r")) == NULL) {
+		warn("%s", page->filename);
+		exit_code = 1;
+		return;
+	}
+	while (gzgets(in, buffer, sizeof buffer) != NULL) {
+		line = buffer;
+		if (strncmp(line, ".\\\"", 3) == 0)		/* ignore comments */
+			continue;
+		switch (state) {
+		/*
+		 * haven't reached the NAME section yet.
+		 */
+		case STATE_UNKNOWN:
+			if (name_section_line(line, ".SH"))
+				state = STATE_MANSTYLE;
+			else if (name_section_line(line, ".Sh"))
+				state = STATE_MDOCNAME;
+			continue;
+		/*
+		 * Inside an old-style .SH NAME section.
+		 */
+		case STATE_MANSTYLE:
+			if ((strncmp(line, ".SH", 3) == 0) || (strncmp(line, ".SS", 3) == 0))
+				break;
+			trim_rhs(line);
+			if (strcmp(line, ".") == 0)
+				continue;
+			if (strncmp(line, ".IX", 3) == 0) {
+				line += 3;
+				line = skip_spaces(line);
+			}
+			process_man_line(line);
+			continue;
+		/*
+		 * Inside a new-style .Sh NAME section (the .Nm part).
+		 */
+		case STATE_MDOCNAME:
+			trim_rhs(line);
+			if (strncmp(line, ".Nm", 3) == 0) {
+				process_mdoc_line(line);
+				continue;
+			} else {
+				if (strcmp(line, ".") == 0)
+					continue;
+				sbuf_append(whatis_proto, "- ", 2);
+				state = STATE_MDOCDESC;
+			}
+			/* fall through */
+		/*
+		 * Inside a new-style .Sh NAME section (after the .Nm-s).
+		 */
+		case STATE_MDOCDESC:
+			if (strncmp(line, ".Sh", 3) == 0)
+				break;
+			trim_rhs(line);
+			if (strcmp(line, ".") == 0)
+				continue;
+			process_mdoc_line(line);
+			continue;
+		}
+		break;
+	}
+	gzclose(in);
+	sbuf_strip(whatis_proto, " \t.-");
+	line = sbuf_content(whatis_proto);
+	/*
+	 * line now contains the appropriate data, but without
+	 * the proper indentation or the section appended to each name.
+	 */
+	descr = strstr(line, " - ");
+	if (descr == NULL) {
+		descr = strchr(line, ' ');
+		if (descr == NULL) {
+			if (verbose)
+				fprintf(stderr, "	ignoring junk description \"%s\"\n", line);
+			return;
+		}
+		*descr++ = '\0';
+	} else {
+		*descr = '\0';
+		descr += 3;
+	}
+	names = sl_init();
+	collect_names(names, line);
+	sbuf_clear(whatis_final);
+	if (!sl_find(names, page->name) && no_page_exists(section_dir, names, page->suffix)) {
+		/*
+		 * Add the page name since that's the only thing that
+		 * man(1) will find.
+		 */
+		add_whatis_name(page->name, page->suffix);
+	}
+	for (i = 0; i < names->sl_cur; i++)
+		add_whatis_name(names->sl_str[i], page->suffix);
+	sl_free(names, 0);
+	sbuf_retract(whatis_final, 2);		/* remove last ", " */
+	while (sbuf_length(whatis_final) < indent)
+		sbuf_append(whatis_final, " ", 1);
+	sbuf_append(whatis_final, " - ", 3);
+	sbuf_append_str(whatis_final, skip_spaces(descr));
+	sl_add(whatis_lines, strdup(sbuf_content(whatis_final)));
+}
+
+/*
+ * Sorts pages first by inode number, then by name.
+ */
+static int
+pagesort(const void *a, const void *b)
+{
+	const struct page_info *p1 = *(struct page_info * const *) a;
+	const struct page_info *p2 = *(struct page_info * const *) b;
+	if (p1->inode == p2->inode)
+		return strcmp(p1->name, p2->name);
+	return p1->inode - p2->inode;
+}
+
+/*
+ * Processes a single man section.
+ */
+static void
+process_section(char *section_dir)
+{
+	struct dirent **entries;
+	int nentries;
+	struct page_info **pages;
+	int npages = 0;
+	int i;
+	ino_t prev_inode = 0;
+
+	if (verbose)
+		fprintf(stderr, "  %s\n", section_dir);
+
+	/*
+	 * scan the man section directory for pages
+	 */
+	nentries = scandir(section_dir, &entries, NULL, alphasort);
+	if (nentries < 0) {
+		warn("%s", section_dir);
+		exit_code = 1;
+		return;
+	}
+	/*
+	 * collect information about man pages
+	 */
+	pages = (struct page_info **) calloc(nentries, sizeof(struct page_info *));
+	for (i = 0; i < nentries; i++) {
+		struct page_info *info = new_page_info(section_dir, entries[i]);
+		if (info != NULL)
+			pages[npages++] = info;
+		free(entries[i]);
+	}
+	free(entries);
+	qsort(pages, npages, sizeof(struct page_info *), pagesort);
+	/*
+	 * process each unique page
+	 */
+	for (i = 0; i < npages; i++) {
+		struct page_info *page = pages[i];
+		if (page->inode != prev_inode) {
+			prev_inode = page->inode;
+			if (verbose)
+				fprintf(stderr, "	reading %s\n", page->filename);
+			process_page(page, section_dir);
+		} else if (verbose)
+			fprintf(stderr, "	skipping %s, duplicate\n", page->filename);
+		free_page_info(page);
+	}
+	free(pages);
+}
+
+/*
+ * Returns whether the directory entry is a man page section.
+ */
+static int
+select_sections(struct dirent *entry)
+{
+	char *p = &entry->d_name[3];
+
+	if (strncmp(entry->d_name, "man", 3) != 0)
+		return 0;
+	while (*p != '\0') {
+		if (!isalnum(*p++))
+			return 0;
+	}
+	return 1;
+}
+
+/*
+ * Processes a single top-level man directory by finding all the
+ * sub-directories named man* and processing each one in turn.
+ */
+static void
+process_mandir(char *dir_name)
+{
+	int dir_fd;
+	DIR *dir;
+	FILE *fp = NULL;
+	struct dirent *entry;
+	struct stat st;
+
+	if (already_visited(dir_name))
+		return;
+	if (verbose)
+		fprintf(stderr, "man directory %s\n", dir_name);
+
+	dir_fd = open(dir_name, O_RDONLY | O_DIRECTORY | O_NOFOLLOW);
+	if (dir_fd == -1) {
+		warn("%s", dir_name);
+		exit_code = 1;
+		return;
+	}
+	dir = fdopendir(dir_fd);
+	if (dir == NULL) {
+		warn("%s", dir_name);
+		close(dir_fd);
+		exit_code = 1;
+		return;
+	}
+	if (common_output == NULL && (fp = open_whatis(dir_name, dir_fd)) == NULL) {
+		closedir(dir);
+		return;
+	}
+	while ((entry = readdir(dir)) != NULL) {
+		char section_dir[MAXPATHLEN];
+		if (select_sections(entry) == 0)
+			continue;
+		snprintf(section_dir, sizeof section_dir, "%s/%s", dir_name, entry->d_name);
+		process_section(section_dir);
+#ifndef __APPLE__
+		snprintf(section_dir, sizeof section_dir, "%s/%s/%s", dir_name,
+		    entry->d_name, machine);
+		if (stat(section_dir, &st) == 0 && S_ISDIR(st.st_mode))
+			process_section(section_dir);
+#endif /* !__APPLE__ */
+	}
+	if (common_output == NULL)
+		finish_whatis(fp, dir_name, dir_fd);
+	closedir(dir);
+}
+
+/*
+ * Processes one argument, which may be a colon-separated list of
+ * directories.
+ */
+static void
+process_argument(const char *arg)
+{
+	char *dir;
+	char *mandir;
+	char *parg;
+
+	parg = strdup(arg);
+	if (parg == NULL)
+		err(1, "out of memory");
+	while ((dir = strsep(&parg, ":")) != NULL) {
+		if (locale != NULL) {
+			asprintf(&mandir, "%s/%s", dir, locale);
+			process_mandir(mandir);
+			free(mandir);
+			if (lang_locale != NULL) {
+				asprintf(&mandir, "%s/%s", dir, lang_locale);
+				process_mandir(mandir);
+				free(mandir);
+			}
+		} else {
+			process_mandir(dir);
+		}
+	}
+	free(parg);
+}
+
+
+int
+main(int argc, char **argv)
+{
+	int opt;
+	FILE *fp = NULL;
+
+	while ((opt = getopt(argc, argv, "ai:n:o:vL")) != -1) {
+		switch (opt) {
+		case 'a':
+			append++;
+			break;
+		case 'i':
+			indent = atoi(optarg);
+			break;
+		case 'n':
+			whatis_name = optarg;
+			break;
+		case 'o':
+			common_output = optarg;
+			break;
+		case 'v':
+			verbose++;
+			break;
+		case 'L':
+			locale = getenv("LC_ALL");
+			if (locale == NULL)
+				locale = getenv("LC_CTYPE");
+			if (locale == NULL)
+				locale = getenv("LANG");
+			if (locale != NULL) {
+				char *sep = strchr(locale, '_');
+				if (sep != NULL && isupper(sep[1]) &&
+				    isupper(sep[2])) {
+					asprintf(&lang_locale, "%.*s%s", sep - locale, locale, &sep[3]);
+				}
+			}
+			break;
+		default:
+			fprintf(stderr, "usage: %s [-a] [-i indent] [-n name] [-o output_file] [-v] [-L] [directories...]\n", argv[0]);
+			exit(1);
+		}
+	}
+
+	signal(SIGINT, trap_signal);
+	signal(SIGHUP, trap_signal);
+	signal(SIGQUIT, trap_signal);
+	signal(SIGTERM, trap_signal);
+	SLIST_INIT(&visited_dirs);
+	whatis_proto = new_sbuf();
+	whatis_final = new_sbuf();
+
+#ifndef __APPLE__
+	if ((machine = getenv("MACHINE")) == NULL)
+		machine = MACHINE;
+#endif /* !__APPLE__ */
+
+	if (common_output != NULL && (fp = open_output(common_output, AT_FDCWD, common_output)) == NULL)
+		err(1, "%s", common_output);
+	if (optind == argc) {
+		const char *manpath = getenv("MANPATH");
+		if (manpath == NULL)
+			manpath = DEFAULT_MANPATH;
+		process_argument(manpath);
+	} else {
+		while (optind < argc)
+			process_argument(argv[optind++]);
+	}
+	if (common_output != NULL)
+		finish_output(fp, common_output, AT_FDCWD, common_output);
+	exit(exit_code);
+}
diff --git a/doc_cmds/makewhatis/makewhatis.local.8 b/doc_cmds/makewhatis/makewhatis.local.8
new file mode 100644
index 0000000..597d78b
--- /dev/null
+++ b/doc_cmds/makewhatis/makewhatis.local.8
@@ -0,0 +1,69 @@
+.\" Copyright (c) April 1996 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD: src/usr.bin/makewhatis/makewhatis.local.8,v 1.15 2004/07/02 22:22:28 ru Exp $
+.Dd April 26, 1996
+.Dt MAKEWHATIS.LOCAL 8
+.Os
+.Sh NAME
+.Nm makewhatis.local
+.Nd start makewhatis for local file systems
+.Sh SYNOPSIS
+.Nm /usr/libexec/makewhatis.local
+.Op options
+.Ar directories ...
+.Sh DESCRIPTION
+The
+.Nm
+utility starts
+.Xr makewhatis 8
+only for file systems physically mounted on the system
+where the
+.Nm
+is being executed.
+Running makewhatis
+by
+.Pa periodic weekly
+for rw nfs-mounted /usr may kill
+your NFS server -- all NFS clients start makewhatis at the same time!
+So use this wrapper for
+.Xr cron 8
+instead of calling makewhatis directly.
+.Sh FILES
+.Bl -tag -width /etc/periodic/weekly/320.whatis.XXX -compact
+.It Pa /etc/periodic/weekly/320.whatis
+run
+.Nm
+every week
+.El
+.Sh SEE ALSO
+.Xr find 1 ,
+.Xr makewhatis 8 ,
+.Xr cron 8 ,
+.Xr periodic 8
+.Sh HISTORY
+The
+.Nm
+utility appeared in
+.Fx 2.2 .
diff --git a/doc_cmds/makewhatis/makewhatis.local.sh b/doc_cmds/makewhatis/makewhatis.local.sh
new file mode 100644
index 0000000..6baedcb
--- /dev/null
+++ b/doc_cmds/makewhatis/makewhatis.local.sh
@@ -0,0 +1,64 @@
+#!/bin/sh
+#
+# Copyright (c) April 1996 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+#
+# makewhatis.local - start makewhatis(1) only for file systems 
+#		     physically mounted on the system
+#
+# Running makewhatis from /etc/periodic/weekly/320.whatis for rw nfs-mounted
+# /usr may kill your NFS server -- all clients start makewhatis at the same
+# time! So use this wrapper instead calling makewhatis directly.
+#
+# PS: this wrapper works also for catman(1)
+#
+# $FreeBSD: src/usr.bin/makewhatis/makewhatis.local.sh,v 1.7 1999/08/27 23:36:10 peter Exp $
+PATH=/bin:/usr/bin:/usr/libexec:$PATH; export PATH
+opt= dirs= localdirs= stdout=
+
+for arg
+do
+	case "$arg" in
+        "-o /dev/fd/1")
+			opt="$opt $arg"
+            stdout=1;;
+		-*) opt="$opt $arg";;
+		*)	dirs="$dirs $arg";;
+	esac
+done
+
+if [[ -z "$stdout" ]]; then
+    dirs=`echo $dirs | awk -F: '{ for (i = 1; i <= NF; i++) { if ($i !~ "\\.app/" && $i !~ "/CommandLineTools/") { printf $i " " } } printf "\n" }'`
+else
+	dirs=`echo $dirs | sed 's/:/ /g'`
+fi
+case X"$dirs" in X) echo "usage: $0 [options] directories ..."; exit 1;; esac
+
+localdirs=`find -H $dirs -fstype local -type d -prune -print`
+
+case X"$localdirs" in
+	X) 	echo "$0: no local-mounted manual directories found: $dirs"
+		exit 1;;
+	*) 	exec `basename $0 .local` $opt $localdirs;;
+esac
author	Cameron Katri <me@cameronkatri.com>	2021-05-09 14:20:58 -0400
committer	Cameron Katri <me@cameronkatri.com>	2021-05-09 14:20:58 -0400
commit	5fd83771641d15c418f747bd343ba6738d3875f7 (patch)
tree	5abf0f78f680d9837dbd93d4d4c3933bb7509599 /doc_cmds
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