[comp.sources.unix] v24i008: RCS source control system, Part08/12

rsalz@bbn.com (Rich Salz) (02/23/91)

Submitted-by: Adam Hammer <hammer@cs.purdue.edu>
Posting-number: Volume 24, Issue 8
Archive-name: rcs/part08

#! /bin/sh
# This is a shell archive.  Remove anything before this line, then feed it
# into a shell via "sh file" or similar.  To overwrite existing files,
# type "sh file -c".
# The tool that generated this appeared in the comp.sources.unix newsgroup;
# send mail to comp-sources-unix@uunet.uu.net if you want that tool.
# Contents:  COPYING src/partime.c src/rcssyn.c
# Wrapped by rsalz@litchi.bbn.com on Thu Feb 21 14:37:04 1991
PATH=/bin:/usr/bin:/usr/ucb ; export PATH
echo If this archive is complete, you will see the following message:
echo '          "shar: End of archive 8 (of 12)."'
if test -f 'COPYING' -a "${1}" != "-c" ; then 
  echo shar: Will not clobber existing file \"'COPYING'\"
else
  echo shar: Extracting \"'COPYING'\" \(12488 characters\)
  sed "s/^X//" >'COPYING' <<'END_OF_FILE'
X
X		    GNU GENERAL PUBLIC LICENSE
X		     Version 1, February 1989
X
X Copyright (C) 1989 Free Software Foundation, Inc.
X                    675 Mass Ave, Cambridge, MA 02139, USA
X Everyone is permitted to copy and distribute verbatim copies
X of this license document, but changing it is not allowed.
X
X			    Preamble
X
X  The license agreements of most software companies try to keep users
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XLicense is intended to guarantee your freedom to share and change free
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Xsoftware and to any other program whose authors commit to using it.
XYou can use it for your programs, too.
X
X  When we speak of free software, we are referring to freedom, not
Xprice.  Specifically, the General Public License is designed to make
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X  The precise terms and conditions for copying, distribution and
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X
X		    GNU GENERAL PUBLIC LICENSE
X   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
X
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X
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XMere aggregation of another independent work with the Program (or its
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X
X  3. You may copy and distribute the Program (or a portion or derivative of
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X
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X    source code, which must be distributed under the terms of
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X
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Xremain in full compliance.
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Xand all its terms and conditions.
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X  6. Each time you redistribute the Program (or any work based on the
XProgram), the recipient automatically receives a license from the original
Xlicensor to copy, distribute or modify the Program subject to these
Xterms and conditions.  You may not impose any further restrictions on the
Xrecipients' exercise of the rights granted herein.
X
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XPROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
XPOSSIBILITY OF SUCH DAMAGES.
X
X		     END OF TERMS AND CONDITIONS
X
X	Appendix: How to Apply These Terms to Your New Programs
X
X  If you develop a new program, and you want it to be of the greatest
Xpossible use to humanity, the best way to achieve this is to make it
Xfree software which everyone can redistribute and change under these
Xterms.
X
X  To do so, attach the following notices to the program.  It is safest to
Xattach them to the start of each source file to most effectively convey
Xthe exclusion of warranty; and each file should have at least the
X"copyright" line and a pointer to where the full notice is found.
X
X    <one line to give the program's name and a brief idea of what it does.>
X    Copyright (C) 19yy  <name of author>
X
X    This program is free software; you can redistribute it and/or modify
X    it under the terms of the GNU General Public License as published by
X    the Free Software Foundation; either version 1, or (at your option)
X    any later version.
X
X    This program is distributed in the hope that it will be useful,
X    but WITHOUT ANY WARRANTY; without even the implied warranty of
X    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
X    GNU General Public License for more details.
X
X    You should have received a copy of the GNU General Public License
X    along with this program; if not, write to the Free Software
X    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
X
XAlso add information on how to contact you by electronic and paper mail.
X
XIf the program is interactive, make it output a short notice like this
Xwhen it starts in an interactive mode:
X
X    Gnomovision version 69, Copyright (C) 19xx name of author
X    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
X    This is free software, and you are welcome to redistribute it
X    under certain conditions; type `show c' for details.
X
XThe hypothetical commands `show w' and `show c' should show the
Xappropriate parts of the General Public License.  Of course, the
Xcommands you use may be called something other than `show w' and `show
Xc'; they could even be mouse-clicks or menu items--whatever suits your
Xprogram.
X
XYou should also get your employer (if you work as a programmer) or your
Xschool, if any, to sign a "copyright disclaimer" for the program, if
Xnecessary.  Here a sample; alter the names:
X
X  Yoyodyne, Inc., hereby disclaims all copyright interest in the
X  program `Gnomovision' (a program to direct compilers to make passes
X  at assemblers) written by James Hacker.
X
X  <signature of Ty Coon>, 1 April 1989
X  Ty Coon, President of Vice
X
XThat's all there is to it!
END_OF_FILE
  if test 12488 -ne `wc -c <'COPYING'`; then
    echo shar: \"'COPYING'\" unpacked with wrong size!
  fi
  # end of 'COPYING'
fi
if test -f 'src/partime.c' -a "${1}" != "-c" ; then 
  echo shar: Will not clobber existing file \"'src/partime.c'\"
else
  echo shar: Extracting \"'src/partime.c'\" \(19500 characters\)
  sed "s/^X//" >'src/partime.c' <<'END_OF_FILE'
X/*
X * PARTIME		parse date/time string into a TM structure
X *
X * Returns:
X *	0 if parsing failed
X *	else time values in specified TM structure and zone (unspecified values
X *		set to TMNULL)
X * Notes:
X *	This code is quasi-public; it may be used freely in like software.
X *	It is not to be sold, nor used in licensed software without
X *	permission of the author.
X *	For everyone's benefit, please report bugs and improvements!
X * 	Copyright 1980 by Ken Harrenstien, SRI International.
X *	(ARPANET: KLH @ SRI)
X */
X
X/* Hacknotes:
X *	If parsing changed so that no backup needed, could perhaps modify
X *		to use a FILE input stream.  Need terminator, though.
X *	Perhaps should return 0 on success, else a non-zero error val?
X */
X
X/* $Log: partime.c,v $
X * Revision 5.4  1990/10/04  06:30:15  eggert
X * Remove date vs time heuristics that fail between 2000 and 2400.
X * Check for overflow when lexing an integer.
X * Parse 'Jan 10 LT' as 'Jan 10, LT', not 'Jan, 10 LT'.
X *
X * Revision 5.3  1990/09/24  18:56:31  eggert
X * Update timezones.
X *
X * Revision 5.2  1990/09/04  08:02:16  eggert
X * Don't parse two-digit years, because it won't work after 1999/12/31.
X * Don't permit 'Aug Aug'.
X *
X * Revision 5.1  1990/08/29  07:13:49  eggert
X * Be able to parse our own date format.  Don't assume year<10000.
X *
X * Revision 5.0  1990/08/22  08:12:40  eggert
X * Switch to GMT and fix the bugs exposed thereby.  Update timezones.
X * Ansify and Posixate.  Fix peekahead and int-size bugs.
X *
X * Revision 1.4  89/05/01  14:48:46  narten
X * fixed #ifdef DEBUG construct
X * 
X * Revision 1.3  88/08/28  14:53:40  eggert
X * Remove unportable "#endif XXX"s.
X * 
X * Revision 1.2  87/03/27  14:21:53  jenkins
X * Port to suns
X * 
X * Revision 1.1  82/05/06  11:38:26  wft
X * Initial revision
X * 
X */
X
X#include "rcsbase.h"
X
XlibId(partId, "$Id: partime.c,v 5.4 1990/10/04 06:30:15 eggert Exp $")
X
X#define given(v) (0 <= (v))
X#define TMNULL (-1) /* Items not given are given this value */
X#define TZ_OFFSET (24*60) /* TMNULL  <  zone_offset - TZ_OFFSET */
X
Xstruct tmwent {
X	const char *went;
X	short wval;
X	char wflgs;
X	char wtype;
X};
X	/* wflgs */
X#define TWTIME 02	/* Word is a time value (absence implies date) */
X#define TWDST  04	/* Word is a DST-type timezone */
X	/* wtype */
X#define TM_MON	1	/* month name */
X#define TM_WDAY	2	/* weekday name */
X#define TM_ZON	3	/* time zone name */
X#define TM_LT	4	/* local time */
X#define TM_DST	5	/* daylight savings time */
X#define TM_12	6	/* AM, PM, NOON, or MIDNIGHT */
X	/* wval (for wtype==TM_12) */
X#define T12_AM 1
X#define T12_PM 2
X#define T12_NOON 12
X#define T12_MIDNIGHT 0
X
Xstatic const struct tmwent tmwords [] = {
X	{"january",      0, 0, TM_MON},
X	{"february",     1, 0, TM_MON},
X	{"march",        2, 0, TM_MON},
X	{"april",        3, 0, TM_MON},
X	{"may",          4, 0, TM_MON},
X	{"june",         5, 0, TM_MON},
X	{"july",         6, 0, TM_MON},
X	{"august",       7, 0, TM_MON},
X	{"september",    8, 0, TM_MON},
X	{"october",      9, 0, TM_MON},
X	{"november",     10, 0, TM_MON},
X	{"december",     11, 0, TM_MON},
X
X	{"sunday",       0, 0, TM_WDAY},
X	{"monday",       1, 0, TM_WDAY},
X	{"tuesday",      2, 0, TM_WDAY},
X	{"wednesday",    3, 0, TM_WDAY},
X	{"thursday",     4, 0, TM_WDAY},
X	{"friday",       5, 0, TM_WDAY},
X	{"saturday",     6, 0, TM_WDAY},
X
X	{"gmt",          0*60, TWTIME, TM_ZON},   /* Greenwich */
X	{"utc",          0*60, TWTIME, TM_ZON},
X	{"ut",           0*60, TWTIME, TM_ZON},
X
X	{"nzst",        -12*60, TWTIME, TM_ZON},  /* New Zealand */
X	{"jst",         -9*60, TWTIME, TM_ZON},   /* Japan */
X	{"kst",         -9*60, TWTIME, TM_ZON},   /* Korea */
X	{"ist",         -5*60-30, TWTIME, TM_ZON},/* India */
X	{"eet",         -2*60, TWTIME, TM_ZON},   /* Eastern Europe */
X	{"cet",         -1*60, TWTIME, TM_ZON},   /* Central Europe */
X	{"met",         -1*60, TWTIME, TM_ZON},   /* Middle Europe */
X	{"wet",          0*60, TWTIME, TM_ZON},   /* Western Europe */
X	{"nst",          3*60+30, TWTIME, TM_ZON},/* Newfoundland */
X	{"ast",          4*60, TWTIME, TM_ZON},   /* Atlantic */
X	{"est",          5*60, TWTIME, TM_ZON},   /* Eastern */
X	{"cst",          6*60, TWTIME, TM_ZON},   /* Central */
X	{"mst",          7*60, TWTIME, TM_ZON},   /* Mountain */
X	{"pst",          8*60, TWTIME, TM_ZON},   /* Pacific */
X	{"akst",         9*60, TWTIME, TM_ZON},   /* Alaska */
X	{"hast",         10*60, TWTIME, TM_ZON},  /* Hawaii-Aleutian */
X	{"hst",          10*60, TWTIME, TM_ZON},  /* Hawaii */
X	{"sst",          11*60, TWTIME, TM_ZON},  /* Samoa */
X
X	{"nzdt",        -12*60, TWTIME+TWDST, TM_ZON},    /* New Zealand */
X	{"kdt",         -9*60, TWTIME+TWDST, TM_ZON},     /* Korea */
X	{"bst",          0*60, TWTIME+TWDST, TM_ZON},     /* Britain */
X	{"ndt",          2*60+30, TWTIME+TWDST, TM_ZON}, /*Newfoundland (DDST)*/
X	{"adt",          4*60, TWTIME+TWDST, TM_ZON},     /* Atlantic */
X	{"edt",          5*60, TWTIME+TWDST, TM_ZON},     /* Eastern */
X	{"cdt",          6*60, TWTIME+TWDST, TM_ZON},     /* Central */
X	{"mdt",          7*60, TWTIME+TWDST, TM_ZON},     /* Mountain */
X	{"pdt",          8*60, TWTIME+TWDST, TM_ZON},     /* Pacific */
X	{"akdt",         9*60, TWTIME+TWDST, TM_ZON},     /* Alaska */
X	{"hadt",         10*60, TWTIME+TWDST, TM_ZON},    /* Hawaii-Aleutian */
X
X#if 0
X	/*
X	 * The following names are duplicates or are not well attested.
X	 * A standard is needed.
X	 */
X	{"?st",         -13*60, TWTIME, TM_ZON},  /* Uelen */
X	{"?st",         -11*60, TWTIME, TM_ZON},  /* Magadan */
X	{"east",        -10*60, TWTIME, TM_ZON},  /* Eastern Australia */
X	{"cast",        -9*60-30, TWTIME, TM_ZON},/* Central Australia */
X	{"cst",         -8*60, TWTIME, TM_ZON},   /* China */
X	{"hkt",         -8*60, TWTIME, TM_ZON},   /* Hong Kong */
X	{"sst",         -8*60, TWTIME, TM_ZON},   /* Singapore */
X	{"wast",        -8*60, TWTIME, TM_ZON},   /* Western Australia */
X	{"?st",         -7*60, TWTIME, TM_ZON},   /* Novosibirsk */
X	{"jt",          -7*60-30, TWTIME, TM_ZON},/* Java */
X	{"nst",         -6*60-30, TWTIME, TM_ZON},/* North Sumatra */
X	{"?st",         -6*60, TWTIME, TM_ZON},   /* Tashkent */
X	{"?st",         -5*60, TWTIME, TM_ZON},	  /* Sverdlovsk */
X	{"?",           -4*60-30, TWTIME, TM_ZON},/* Afghanistan */
X	{"?st",         -4*60, TWTIME, TM_ZON},	  /* Rostov */
X	{"it",          -3*60-30, TWTIME, TM_ZON},/* Iran */
X	{"?st",         -3*60, TWTIME, TM_ZON},   /* Moscow */
X	{"ist",         -2*60, TWTIME, TM_ZON},   /* Israel */
X	{"ast",          1*60, TWTIME, TM_ZON},   /* Azores */
X	{"fst",          2*60, TWTIME, TM_ZON},   /* Fernando de Noronha */
X	{"bst",          3*60, TWTIME, TM_ZON},   /* Brazil */
X	{"wst",          4*60, TWTIME, TM_ZON},   /* Western Brazil */
X	{"ast",          5*60, TWTIME, TM_ZON},   /* Acre Brazil */
X	{"?",            9*60+30, TWTIME, TM_ZON},/* Marquesas */
X	{"?st",          12*60, TWTIME, TM_ZON},  /* Kwajalein */
X
X	{"?dt",         -13*60, TWTIME+TWDST, TM_ZON},	  /* Uelen */
X	{"?dt",         -11*60, TWTIME+TWDST, TM_ZON},	  /* Magadan */
X	{"eadt",        -10*60, TWTIME+TWDST, TM_ZON},    /* Eastern Australia */
X	{"cadt",        -9*60-30, TWTIME+TWDST, TM_ZON},  /* Central Australia */
X	{"cdt",         -8*60, TWTIME+TWDST, TM_ZON},     /* China */
X	{"wadt",        -8*60, TWTIME+TWDST, TM_ZON},     /* Western Australia */
X	{"?dt",         -7*60, TWTIME+TWDST, TM_ZON},	  /* Novosibirsk */
X	{"?dt",         -6*60, TWTIME+TWDST, TM_ZON},	  /* Tashkent */
X	{"?dt",         -5*60, TWTIME+TWDST, TM_ZON},	  /* Sverdlovsk */
X	{"?dt",         -4*60, TWTIME+TWDST, TM_ZON},	  /* Rostov */
X	{"?dt",         -3*60, TWTIME+TWDST, TM_ZON},     /* Moscow */
X	{"idt",         -2*60, TWTIME+TWDST, TM_ZON},     /* Israel */
X	{"eest",        -2*60, TWTIME+TWDST, TM_ZON},     /* Eastern Europe */
X	{"cest",        -1*60, TWTIME+TWDST, TM_ZON},     /* Central Europe */
X	{"mest",        -1*60, TWTIME+TWDST, TM_ZON},     /* Middle Europe */
X	{"west",         0*60, TWTIME+TWDST, TM_ZON},     /* Western Europe */
X	{"adt",          1*60, TWTIME+TWDST, TM_ZON},	  /* Azores */
X	{"fdt",          2*60, TWTIME+TWDST, TM_ZON},     /* Fernando de Noronha */
X	{"edt",          3*60, TWTIME+TWDST, TM_ZON},     /* Eastern Brazil */
X	{"wdt",          4*60, TWTIME+TWDST, TM_ZON},     /* Western Brazil */
X	{"adt",          5*60, TWTIME+TWDST, TM_ZON},     /* Acre Brazil */
X#endif
X
X	{"lt",           0, TWTIME, TM_LT},       /* local time */
X	{"dst",          1*60, TWTIME, TM_DST},      /* daylight savings time */
X	{"ddst",         2*60, TWTIME, TM_DST},      /* double dst */
X
X	{"am",           T12_AM,	TWTIME, TM_12},
X	{"pm",           T12_PM,	TWTIME, TM_12},
X	{"noon",         T12_NOON,	TWTIME, TM_12},
X	{"midnight",     T12_MIDNIGHT,	TWTIME, TM_12},
X
X	{0, 0, 0, 0},             /* Zero entry to terminate searches */
X};
X
Xstruct token {
X	const char *tcp;/* pointer to string */
X	int tcnt;	/* # chars */
X	char tbrk;	/* "break" char */
X	char tbrkl;	/* last break char */
X	char tflg;	/* 0 = alpha, 1 = numeric */
X	union {         /* Resulting value; */
X		int tnum;/* either a #, or */
X		const struct tmwent *ttmw;/* ptr to a tmwent. */
X	} tval;
X};
X
Xstatic const struct tmwent*ptmatchstr P((const char*,int,const struct tmwent*));
Xstatic int pt12hack P((struct tm *,int));
Xstatic int ptitoken P((struct token *));
Xstatic int ptstash P((int *,int));
Xstatic int pttoken P((struct token *));
X
X	static int
Xgoodzone(t, offset, am)
X	register const struct token *t;
X	int offset;
X	int *am;
X{
X	register int m;
X	if (
X		t->tflg  &&
X		t->tcnt == 4+offset  &&
X		(m = t->tval.tnum) <= 2400  &&
X		isdigit(t->tcp[offset]) &&
X		(m%=100) < 60
X	) {
X		m += t->tval.tnum/100 * 60;
X		if (t->tcp[offset-1]=='+')
X			m = -m;
X		*am = m;
X		return 1;
X	}
X	return 0;
X}
X
X    int
Xpartime(astr, atm, zone)
Xconst char *astr;
Xregister struct tm *atm;
Xint *zone;
X{
X    register int i;
X    struct token btoken, atoken;
X    int zone_offset; /* minutes west of GMT, plus TZ_OFFSET */
X    register const char *cp;
X    register char ch;
X    int ord, midnoon;
X    int *atmfield, dst, m;
X    int got1 = 0;
X
X    atm->tm_sec = TMNULL;
X    atm->tm_min = TMNULL;
X    atm->tm_hour = TMNULL;
X    atm->tm_mday = TMNULL;
X    atm->tm_mon = TMNULL;
X    atm->tm_year = TMNULL;
X    atm->tm_wday = TMNULL;
X    atm->tm_yday = TMNULL;
X    midnoon = TMNULL;		/* and our own temp stuff */
X    zone_offset = TMNULL;
X    dst = TMNULL;
X    btoken.tcnt = btoken.tbrk = 0;
X    btoken.tcp = astr;
X
X    for (;; got1=1) {
X	if (!ptitoken(&btoken))				/* Get a token */
X	  {     if(btoken.tval.tnum) return(0);         /* Read error? */
X		if (given(midnoon))			/* EOF, wrap up */
X			if (!pt12hack(atm, midnoon))
X				return 0;
X		if (!given(atm->tm_min))
X			atm->tm_min = 0;
X		*zone  =
X				(given(zone_offset) ? zone_offset-TZ_OFFSET : 0)
X			-	(given(dst) ? dst : 0);
X		return got1;
X	  }
X	if(btoken.tflg == 0)		/* Alpha? */
X	  {     i = btoken.tval.ttmw->wval;
X		switch (btoken.tval.ttmw->wtype) {
X		  default:
X			return 0;
X		  case TM_MON:
X			atmfield = &atm->tm_mon;
X			break;
X		  case TM_WDAY:
X			atmfield = &atm->tm_wday;
X			break;
X		  case TM_DST:
X			atmfield = &dst;
X			break;
X		  case TM_LT:
X			if (ptstash(&dst, 0))
X				return 0;
X			i = 48*60; /* local time magic number -- see maketime() */
X			/* fall into */
X		  case TM_ZON:
X			i += TZ_OFFSET;
X			if (btoken.tval.ttmw->wflgs & TWDST)
X				if (ptstash(&dst, 60))
X					return 0;
X			/* Peek ahead for offset immediately afterwards. */
X			if (
X			    (btoken.tbrk=='-' || btoken.tbrk=='+') &&
X			    (atoken=btoken, ++atoken.tcnt, ptitoken(&atoken)) &&
X			    goodzone(&atoken, 0, &m)
X			) {
X				i += m;
X				btoken = atoken;
X			}
X			atmfield = &zone_offset;
X			break;
X		  case TM_12:
X			atmfield = &midnoon;
X		}
X		if (ptstash(atmfield, i))
X			return(0);		/* ERR: val already set */
X		continue;
X	  }
X
X	/* Token is number.  Lots of hairy heuristics. */
X	if (!isdigit(*btoken.tcp)) {
X		if (!goodzone(&btoken, 1, &m))
X			return 0;
X		zone_offset = TZ_OFFSET + m;
X		continue;
X	}
X
X	i = btoken.tval.tnum;   /* Value now known to be valid; get it. */
X	if (btoken.tcnt == 3)	/*  3 digits = HMM   */
X	  {
Xhhmm4:		if (ptstash(&atm->tm_min, i%100))
X			return(0);		/* ERR: min conflict */
X		i /= 100;
Xhh2:            if (ptstash(&atm->tm_hour, i))
X			return(0);		/* ERR: hour conflict */
X		continue;
X	  }
X
X	if (4 < btoken.tcnt)
X		goto year4; /* far in the future */
X	if(btoken.tcnt == 4)	/* 4 digits = YEAR or HHMM */
X	  {	if (given(atm->tm_year)) goto hhmm4;	/* Already got yr? */
X		if (given(atm->tm_hour)) goto year4;	/* Already got hr? */
X		if(btoken.tbrk == ':')			/* HHMM:SS ? */
X			if ( ptstash(&atm->tm_hour, i/100)
X			  || ptstash(&atm->tm_min, i%100))
X				return(0);		/* ERR: hr/min clash */
X			else goto coltm2;		/* Go handle SS */
X		if(btoken.tbrk != ',' && btoken.tbrk != '/'
X		  && (atoken=btoken, ptitoken(&atoken))	/* Peek */
X		  && ( atoken.tflg
X		     ? !isdigit(*atoken.tcp)
X		     : atoken.tval.ttmw->wflgs & TWTIME)) /* HHMM-ZON */
X			goto hhmm4;
X		goto year4;			/* Give up, assume year. */
X	  }
X
X	/* From this point on, assume tcnt == 1 or 2 */
X	/* 2 digits = MM, DD, or HH (MM and SS caught at coltime) */
X	if(btoken.tbrk == ':')		/* HH:MM[:SS] */
X		goto coltime;		/*  must be part of time. */
X	if (31 < i)
X		return 0;
X
X	/* Check for numerical-format date */
X	for (cp = "/-."; ch = *cp++;)
X	  {	ord = (ch == '.' ? 0 : 1);	/* n/m = D/M or M/D */
X		if(btoken.tbrk == ch)			/* "NN-" */
X		  {	if(btoken.tbrkl != ch)
X			  {
X				atoken = btoken;
X				atoken.tcnt++;
X				if (ptitoken(&atoken)
X				  && atoken.tflg == 0
X				  && atoken.tval.ttmw->wtype == TM_MON)
X					goto dd2;
X				if(ord)goto mm2; else goto dd2; /* "NN-" */
X			  }				/* "-NN-" */
X			if (!given(atm->tm_mday)
X			  && given(atm->tm_year))	/* If "YYYY-NN-" */
X				goto mm2;		/* then always MM */
X			if(ord)goto dd2; else goto mm2;
X		  }
X		if(btoken.tbrkl == ch			/* "-NN" */
X		  && given(ord ? atm->tm_mon : atm->tm_mday))
X			if (!given(ord ? atm->tm_mday : atm->tm_mon)) /* MM/DD */
X				if(ord)goto dd2; else goto mm2;
X	  }
X
X	/* Now reduced to choice between HH and DD */
X	if (given(atm->tm_hour)) goto dd2;	/* Have hour? Assume day. */
X	if (given(atm->tm_mday)) goto hh2;	/* Have day? Assume hour. */
X	if (given(atm->tm_mon)) goto dd2;	/* Have month? Assume day. */
X	if(i > 24) goto dd2;			/* Impossible HH means DD */
X	atoken = btoken;
X	if (!ptitoken(&atoken))			/* Read ahead! */
X		if(atoken.tval.tnum) return(0); /* ERR: bad token */
X		else goto dd2;			/* EOF, assume day. */
X	if ( atoken.tflg
X	   ? !isdigit(*atoken.tcp)
X	   : atoken.tval.ttmw->wflgs & TWTIME)
X		/* If next token is a time spec, assume hour */
X		goto hh2;		/* e.g. "3 PM", "11-EDT"  */
X
Xdd2:	if (ptstash(&atm->tm_mday, i))	/* Store day (1 based) */
X		return(0);
X	continue;
X
Xmm2:	if (ptstash(&atm->tm_mon, i-1))	/* Store month (make zero based) */
X		return(0);
X	continue;
X
Xyear4:	if ((i-=1900) < 0  ||  ptstash(&atm->tm_year, i)) /* Store year-1900 */
X		return(0);		/* ERR: year conflict */
X	continue;
X
X	/* Hack HH:MM[[:]SS] */
Xcoltime:
X	if (ptstash(&atm->tm_hour, i)) return 0;
X	if (!ptitoken(&btoken))
X		return(!btoken.tval.tnum);
X	if(!btoken.tflg) return(0);	/* ERR: HH:<alpha> */
X	if(btoken.tcnt == 4)		/* MMSS */
X		if (ptstash(&atm->tm_min, btoken.tval.tnum/100)
X		  || ptstash(&atm->tm_sec, btoken.tval.tnum%100))
X			return(0);
X		else continue;
X	if(btoken.tcnt != 2
X	  || ptstash(&atm->tm_min, btoken.tval.tnum))
X		return(0);		/* ERR: MM bad */
X	if (btoken.tbrk != ':') continue;	/* Seconds follow? */
Xcoltm2:	if (!ptitoken(&btoken))
X		return(!btoken.tval.tnum);
X	if(!btoken.tflg || btoken.tcnt != 2	/* Verify SS */
X	  || ptstash(&atm->tm_sec, btoken.tval.tnum))
X		return(0);		/* ERR: SS bad */
X    }
X}
X
X/* Store date/time value, return 0 if successful.
X * Fail if entry is already set.
X */
X	static int
Xptstash(adr,val)
Xint *adr;
Xint val;
X{	register int *a;
X	if (given(*(a=adr)))
X		return 1;
X	*a = val;
X	return(0);
X}
X
X/* This subroutine is invoked for AM, PM, NOON and MIDNIGHT when wrapping up
X * just prior to returning from partime.
X */
X	static int
Xpt12hack(tm, aval)
Xregister struct tm *tm;
Xregister int aval;
X{	register int h = tm->tm_hour;
X	switch (aval) {
X	  case T12_AM:
X	  case T12_PM:
X		if (h > 12)
X			return 0;
X		if (h == 12)
X			tm->tm_hour = 0;
X		if (aval == T12_PM)
X			tm->tm_hour += 12;
X		break;
X	  default:
X		if (0 < tm->tm_min  ||  0 < tm->tm_sec)
X			return 0;
X		if (!given(h) || h==12)
X			tm->tm_hour = aval;
X		else if (aval==T12_MIDNIGHT  &&  (h==0 || h==24))
X			return 0;
X	}
X	return 1;
X}
X
X/* Get a token and identify it to some degree.
X * Returns 0 on failure; token.tval will be 0 for normal EOF, otherwise
X * hit error of some sort
X */
X
X	static int
Xptitoken(tkp)
Xregister struct token *tkp;
X{
X	register const char *cp;
X	register int i, j, k;
X
X	if (!pttoken(tkp))
X#ifdef DEBUG
X	    {
X		VOID printf("EOF\n");
X		return(0);
X	    }
X#else
X		return(0);
X#endif	
X	cp = tkp->tcp;
X
X#ifdef DEBUG
X	VOID printf("Token: \"%.*s\" ", tkp->tcnt, cp);
X#endif
X
X	if (tkp->tflg) {
X		i = tkp->tcnt;
X		if (*cp == '+' || *cp == '-') {
X			cp++;
X			i--;
X		}
X		while (0 <= --i) {
X			j = tkp->tval.tnum*10;
X			k = j + (*cp++ - '0');
X			if (j/10 != tkp->tval.tnum  ||  k < j) {
X				/* arithmetic overflow */
X				tkp->tval.tnum = 1;
X				return 0;
X			}
X			tkp->tval.tnum = k;
X		}
X	} else if (!(tkp->tval.ttmw  =  ptmatchstr(cp, tkp->tcnt, tmwords)))
X	  {
X#ifdef DEBUG
X		VOID printf("Not found!\n");
X#endif
X		tkp->tval.tnum = 1;
X		return 0;
X	  }
X
X#ifdef DEBUG
X	if(tkp->tflg)
X		VOID printf("Val: %d.\n",tkp->tval.tnum);
X	else VOID printf("Found: \"%s\", val: %d, type %d\n",
X		tkp->tval.ttmw->went,tkp->tval.ttmw->wval,tkp->tval.ttmw->wtype);
X#endif
X
X	return(1);
X}
X
X/* Read token from input string into token structure */
X	static int
Xpttoken(tkp)
Xregister struct token *tkp;
X{
X	register const char *cp;
X	register int c;
X	const char *astr;
X
X	tkp->tcp = astr = cp = tkp->tcp + tkp->tcnt;
X	tkp->tbrkl = tkp->tbrk;		/* Set "last break" */
X	tkp->tcnt = tkp->tbrk = tkp->tflg = 0;
X	tkp->tval.tnum = 0;
X
X	while(c = *cp++)
X	  {	switch(c)
X		  {	case ' ': case '\t':	/* Flush all whitespace */
X			case '\r': case '\n':
X			case '\v': case '\f':
X				if (!tkp->tcnt) {	/* If no token yet */
X					tkp->tcp = cp;	/* ignore the brk */
X					continue;	/* and go on. */
X				}
X				/* fall into */
X			case '(': case ')':	/* Perhaps any non-alphanum */
X			case '-': case ',':	/* shd qualify as break? */
X			case '+':
X			case '/': case ':': case '.':	/* Break chars */
X				if(tkp->tcnt == 0)	/* If no token yet */
X				  {	tkp->tcp = cp;	/* ignore the brk */
X					tkp->tbrkl = c;
X				  	continue;	/* and go on. */
X				  }
X				tkp->tbrk = c;
X				return(tkp->tcnt);
X		  }
X		if (!tkp->tcnt++) {		/* If first char of token, */
X			if (isdigit(c)) {
X				tkp->tflg = 1;
X				if (astr<cp-2 && (cp[-2]=='-'||cp[-2]=='+')) {
X					/* timezone is break+sign+digit */
X					tkp->tcp--;
X					tkp->tcnt++;
X				}
X			}
X		} else if ((isdigit(c)!=0) != tkp->tflg) { /* else check type */
X			tkp->tbrk = c;
X			return --tkp->tcnt;	/* Wrong type, back up */
X		}
X	  }
X	return(tkp->tcnt);		/* When hit EOF */
X}
X
X
X	static const struct tmwent *
Xptmatchstr(astr,cnt,astruc)
X	const char *astr;
X	int cnt;
X	const struct tmwent *astruc;
X{
X	register const char *cp, *mp;
X	register int c;
X	const struct tmwent *lastptr;
X	int i;
X
X	lastptr = 0;
X	for(;mp = astruc->went; astruc += 1)
X	  {	cp = astr;
X		for(i = cnt; i > 0; i--)
X		  {
X			switch (*cp++ - (c = *mp++))
X			  {	case 0: continue;	/* Exact match */
X				case 'A'-'a':
X				    if (ctab[c] == Letter)
X					continue;
X			  }
X			break;
X		  }
X		if(i==0)
X			if (!*mp) return astruc;	/* Exact match */
X			else if(lastptr) return(0);	/* Ambiguous */
X			else lastptr = astruc;		/* 1st ambig */
X	  }
X	return lastptr;
X}
END_OF_FILE
  if test 19500 -ne `wc -c <'src/partime.c'`; then
    echo shar: \"'src/partime.c'\" unpacked with wrong size!
  fi
  # end of 'src/partime.c'
fi
if test -f 'src/rcssyn.c' -a "${1}" != "-c" ; then 
  echo shar: Will not clobber existing file \"'src/rcssyn.c'\"
else
  echo shar: Extracting \"'src/rcssyn.c'\" \(18364 characters\)
  sed "s/^X//" >'src/rcssyn.c' <<'END_OF_FILE'
X/*
X *                     RCS file input
X */
X/*********************************************************************************
X *                       Syntax Analysis.
X *                       Keyword table
X *                       Testprogram: define SYNTEST
X *                       Compatibility with Release 2: define COMPAT2=1
X *********************************************************************************
X */
X
X/* Copyright (C) 1982, 1988, 1989 Walter Tichy
X   Copyright 1990 by Paul Eggert
X   Distributed under license by the Free Software Foundation, Inc.
X
XThis file is part of RCS.
X
XRCS is free software; you can redistribute it and/or modify
Xit under the terms of the GNU General Public License as published by
Xthe Free Software Foundation; either version 1, or (at your option)
Xany later version.
X
XRCS is distributed in the hope that it will be useful,
Xbut WITHOUT ANY WARRANTY; without even the implied warranty of
XMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
XGNU General Public License for more details.
X
XYou should have received a copy of the GNU General Public License
Xalong with RCS; see the file COPYING.  If not, write to
Xthe Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
X
XReport problems and direct all questions to:
X
X    rcs-bugs@cs.purdue.edu
X
X*/
X
X
X/* $Log: rcssyn.c,v $
X * Revision 5.4  1990/11/01  05:28:48  eggert
X * When ignoring unknown phrases, copy them to the output RCS file.
X * Permit arbitrary data in logs and comment leaders.
X * Don't check for nontext on initial checkin.
X *
X * Revision 5.3  1990/09/20  07:58:32  eggert
X * Remove the test for non-text bytes; it caused more pain than it cured.
X *
X * Revision 5.2  1990/09/04  08:02:30  eggert
X * Parse RCS files with no revisions.
X * Don't strip leading white space from diff commands.  Count RCS lines better.
X *
X * Revision 5.1  1990/08/29  07:14:06  eggert
X * Add -kkvl.  Clean old log messages too.
X *
X * Revision 5.0  1990/08/22  08:13:44  eggert
X * Try to parse future RCS formats without barfing.
X * Add -k.  Don't require final newline.
X * Remove compile-time limits; use malloc instead.
X * Don't output branch keyword if there's no default branch,
X * because RCS version 3 doesn't understand it.
X * Tune.  Remove lint.
X * Add support for ISO 8859.  Ansify and Posixate.
X * Check that a newly checked-in file is acceptable as input to 'diff'.
X * Check diff's output.
X *
X * Revision 4.6  89/05/01  15:13:32  narten
X * changed copyright header to reflect current distribution rules
X * 
X * Revision 4.5  88/08/09  19:13:21  eggert
X * Allow cc -R; remove lint.
X * 
X * Revision 4.4  87/12/18  11:46:16  narten
X * more lint cleanups (Guy Harris)
X * 
X * Revision 4.3  87/10/18  10:39:36  narten
X * Updating version numbers. Changes relative to 1.1 actually relative to
X * 4.1
X * 
X * Revision 1.3  87/09/24  14:00:49  narten
X * Sources now pass through lint (if you ignore printf/sprintf/fprintf 
X * warnings)
X * 
X * Revision 1.2  87/03/27  14:22:40  jenkins
X * Port to suns
X * 
X * Revision 4.1  83/03/28  11:38:49  wft
X * Added parsing and printing of default branch.
X * 
X * Revision 3.6  83/01/15  17:46:50  wft
X * Changed readdelta() to initialize selector and log-pointer.
X * Changed puttree to check for selector==DELETE; putdtext() uses DELNUMFORM.
X *
X * Revision 3.5  82/12/08  21:58:58  wft
X * renamed Commentleader to Commleader.
X *
X * Revision 3.4  82/12/04  13:24:40  wft
X * Added routine gettree(), which updates keeplock after reading the
X * delta tree.
X *
X * Revision 3.3  82/11/28  21:30:11  wft
X * Reading and printing of Suffix removed; version COMPAT2 skips the
X * Suffix for files of release 2 format. Fixed problems with printing nil.
X *
X * Revision 3.2  82/10/18  21:18:25  wft
X * renamed putdeltatext to putdtext.
X *
X * Revision 3.1  82/10/11  19:45:11  wft
X * made sure getc() returns into an integer.
X */
X
X
X
X/* version COMPAT2 reads files of the format of release 2 and 3, but
X * generates files of release 3 format. Need not be defined if no
X * old RCS files generated with release 2 exist.
X */
X/* version SYNTEST inputs a RCS file and then prints out its internal
X * data structures.
X*/
X
X#include "rcsbase.h"
X
XlibId(synId, "$Id: rcssyn.c,v 5.4 1990/11/01 05:28:48 eggert Exp $")
X
X/* forward */
Xstatic const char *getkeyval P((const char*,enum tokens,int));
X
X/* keyword table */
X
Xconst char
X	Kdesc[]     = "desc",
X	Klog[]      = "log",
X	Ktext[]     = "text";
X
Xstatic const char
X	Kaccess[]   = "access",
X	Kauthor[]   = "author",
X	Kbranch[]   = "branch",
X	Kbranches[] = "branches",
X	Kcomment[]  = "comment",
X	Kdate[]     = "date",
X	Kexpand[]   = "expand",
X	Khead[]     = "head",
X	Klocks[]    = "locks",
X	Knext[]     = "next",
X	Kstate[]    = "state",
X	Kstrict[]   = "strict",
X#if COMPAT2
X	Ksuffix[]   = "suffix",
X#endif
X	Ksymbols[]  = "symbols";
X
Xstatic struct buf Commleader;
Xstatic struct cbuf Ignored;
Xstruct cbuf Comment;
Xstruct access   * AccessList;
Xstruct assoc    * Symbols;
Xstruct lock     * Locks;
Xint		  Expand;
Xint               StrictLocks;
Xstruct hshentry * Head;
Xconst char      * Dbranch;
Xint               TotalDeltas;
X
X
X	static void
Xgetsemi(key)
X	const char *key;
X/* Get a semicolon to finish off a phrase started by KEY.  */
X{
X	if (!getlex(SEMI))
X		fatserror("missing ';' after '%s'", key);
X}
X
X	static struct hshentry *
Xgetdnum()
X/* Get a delta number.  */
X{
X	register struct hshentry *delta = getnum();
X	if (delta && countnumflds(delta->num)&1)
X		fatserror("%s isn't a delta number", delta->num);
X	return delta;
X}
X
X
X	void
Xgetadmin()
X/* Read an <admin> and initialize the appropriate global variables.  */
X{
X	register const char *id;
X        struct access   * newaccess;
X        struct assoc    * newassoc;
X        struct lock     * newlock;
X        struct hshentry * delta;
X	struct access **LastAccess;
X	struct assoc **LastSymbol;
X	struct lock **LastLock;
X	struct buf b;
X	struct cbuf cb;
X
X        TotalDeltas=0;
X
X	getkey(Khead);
X	Head = getdnum();
X	getsemi(Khead);
X
X	Dbranch = nil;
X	if (getkeyopt(Kbranch)) {
X		if ((delta = getnum()))
X			Dbranch = delta->num;
X		getsemi(Kbranch);
X        }
X
X
X#if COMPAT2
X        /* read suffix. Only in release 2 format */
X	if (getkeyopt(Ksuffix)) {
X                if (nexttok==STRING) {
X			readstring(); nextlex(); /* Throw away the suffix.  */
X		} else if (nexttok==ID) {
X                        nextlex();
X                }
X		getsemi(Ksuffix);
X        }
X#endif
X
X	getkey(Kaccess);
X	LastAccess = &AccessList;
X        while (id=getid()) {
X		newaccess = ftalloc(struct access);
X                newaccess->login = id;
X		*LastAccess = newaccess;
X		LastAccess = &newaccess->nextaccess;
X        }
X	*LastAccess = nil;
X	getsemi(Kaccess);
X
X	getkey(Ksymbols);
X	LastSymbol = &Symbols;
X        while (id = getid()) {
X                if (!getlex(COLON))
X			fatserror("missing ':' in symbolic name definition");
X                if (!(delta=getnum())) {
X			fatserror("missing number in symbolic name definition");
X                } else { /*add new pair to association list*/
X			newassoc = ftalloc(struct assoc);
X                        newassoc->symbol=id;
X			newassoc->num = delta->num;
X			*LastSymbol = newassoc;
X			LastSymbol = &newassoc->nextassoc;
X                }
X        }
X	*LastSymbol = nil;
X	getsemi(Ksymbols);
X
X	getkey(Klocks);
X	LastLock = &Locks;
X        while (id = getid()) {
X                if (!getlex(COLON))
X			fatserror("missing ':' in lock");
X		if (!(delta=getdnum())) {
X			fatserror("missing number in lock");
X                } else { /*add new pair to lock list*/
X			newlock = ftalloc(struct lock);
X                        newlock->login=id;
X                        newlock->delta=delta;
X			*LastLock = newlock;
X			LastLock = &newlock->nextlock;
X                }
X        }
X	*LastLock = nil;
X	getsemi(Klocks);
X
X	if ((StrictLocks = getkeyopt(Kstrict)))
X		getsemi(Kstrict);
X
X	Comment.size = 0;
X	if (getkeyopt(Kcomment)) {
X		if (nexttok==STRING) {
X			Comment = savestring(&Commleader);
X			nextlex();
X		}
X		getsemi(Kcomment);
X        }
X
X	Expand = KEYVAL_EXPAND;
X	if (getkeyopt(Kexpand)) {
X		if (nexttok==STRING) {
X			bufautobegin(&b);
X			cb = savestring(&b);
X			if ((Expand = str2expmode(cb.string)) < 0)
X			    fatserror("unknown expand mode %s", b.string);
X			bufautoend(&b);
X			nextlex();
X		}
X		getsemi(Kexpand);
X        }
X	Ignored = getphrases(Kdesc);
X}
X
Xconst char *const expand_names[] = {
X	/* These must agree with *_EXPAND in rcsbase.h.  */
X	"kv","kvl","k","v","o",
X	0
X};
X
X	int
Xstr2expmode(s)
X	const char *s;
X/* Yield expand mode corresponding to S, or -1 if bad.  */
X{
X	const char *const *p;
X
X	for (p = expand_names;  *p;  ++p)
X		if (strcmp(*p,s) == 0)
X			return p - expand_names;
X	return -1;
X}
X
X
X	void
Xignorephrase()
X/* Ignore a phrase introduced by a later version of RCS.  */
X{
X	warnignore();
X	hshenter=false;
X	for (;;) {
X	    switch (nexttok) {
X		case SEMI: hshenter=true; nextlex(); return;
X		case ID:
X		case NUM: ffree1(NextString); break;
X		case STRING: readstring(); break;
X		default: break;
X	    }
X	    nextlex();
X	}
X}
X
X
X	static int
Xgetdelta()
X/* Function: reads a delta block.
X * returns false if the current block does not start with a number.
X */
X{
X        register struct hshentry * Delta, * num;
X	struct branchhead **LastBranch, *NewBranch;
X
X	if (!(Delta = getdnum()))
X		return false;
X
X        hshenter = false; /*Don't enter dates into hashtable*/
X        Delta->date = getkeyval(Kdate, NUM, false);
X        hshenter=true;    /*reset hshenter for revision numbers.*/
X
X        Delta->author = getkeyval(Kauthor, ID, false);
X
X        Delta->state = getkeyval(Kstate, ID, true);
X
X	getkey(Kbranches);
X	LastBranch = &Delta->branches;
X	while ((num = getdnum())) {
X		NewBranch = ftalloc(struct branchhead);
X                NewBranch->hsh = num;
X		*LastBranch = NewBranch;
X		LastBranch = &NewBranch->nextbranch;
X        }
X	*LastBranch = nil;
X	getsemi(Kbranches);
X
X	getkey(Knext);
X	Delta->next = num = getdnum();
X	getsemi(Knext);
X	Delta->lockedby = nil;
X	Delta->selector = true;
X	Delta->ig = getphrases(Kdesc);
X        TotalDeltas++;
X        return (true);
X}
X
X
X	void
Xgettree()
X/* Function: Reads in the delta tree with getdelta(), then
X * updates the lockedby fields.
X */
X{
X	const struct lock *currlock;
X
X        while (getdelta());
X        currlock=Locks;
X        while (currlock) {
X                currlock->delta->lockedby = currlock->login;
X                currlock = currlock->nextlock;
X        }
X}
X
X
X	void
Xgetdesc(prdesc)
Xint  prdesc;
X/* Function: read in descriptive text
X * nexttok is not advanced afterwards.
X * If prdesc is set, the text is printed to stdout.
X */
X{
X
X	getkeystring(Kdesc);
X        if (prdesc)
X                printstring();  /*echo string*/
X        else    readstring();   /*skip string*/
X}
X
X
X
X
X
X
X	static const char *
Xgetkeyval(keyword, token, optional)
X	const char *keyword;
X	enum tokens token;
X	int optional;
X/* reads a pair of the form
X * <keyword> <token> ;
X * where token is one of <id> or <num>. optional indicates whether
X * <token> is optional. A pointer to
X * the actual character string of <id> or <num> is returned.
X */
X{
X	register const char *val = nil;
X
X	getkey(keyword);
X        if (nexttok==token) {
X                val = NextString;
X                nextlex();
X        } else {
X		if (!optional)
X			fatserror("missing %s", keyword);
X        }
X	getsemi(keyword);
X        return(val);
X}
X
X
X
X
X	void
Xputadmin(fout)
Xregister FILE * fout;
X/* Function: Print the <admin> node read with getadmin() to file fout.
X * Assumption: Variables AccessList, Symbols, Locks, StrictLocks,
X * and Head have been set.
X */
X{
X	const struct assoc *curassoc;
X	const struct lock *curlock;
X	const struct access *curaccess;
X	register const char *sp;
X	register size_t ss;
X
X	aprintf(fout, "%s\t%s;\n", Khead, Head?Head->num:"");
X	if (Dbranch && VERSION(4)<=RCSversion)
X		aprintf(fout, "%s\t%s;\n", Kbranch, Dbranch);
X
X	aputs(Kaccess, fout);
X        curaccess = AccessList;
X        while (curaccess) {
X	       aprintf(fout, "\n\t%s", curaccess->login);
X               curaccess = curaccess->nextaccess;
X        }
X	aprintf(fout, ";\n%s", Ksymbols);
X        curassoc = Symbols;
X        while (curassoc) {
X	       aprintf(fout, "\n\t%s:%s", curassoc->symbol, curassoc->num);
X               curassoc = curassoc->nextassoc;
X        }
X	aprintf(fout, ";\n%s", Klocks);
X        curlock = Locks;
X        while (curlock) {
X	       aprintf(fout, "\n\t%s:%s", curlock->login, curlock->delta->num);
X               curlock = curlock->nextlock;
X        }
X	if (StrictLocks) aprintf(fout, "; %s", Kstrict);
X	aprintf(fout, ";\n");
X	if ((ss = Comment.size)) {
X		aprintf(fout, "%s\t%c", Kcomment, SDELIM);
X		sp = Comment.string;
X		do {
X		    if (*sp == SDELIM)
X			afputc(SDELIM,fout);
X		    afputc(*sp++,fout);
X		} while (--ss);
X		aprintf(fout, "%c;\n", SDELIM);
X        }
X	if (Expand != KEYVAL_EXPAND)
X		aprintf(fout, "%s\t%c%s%c;\n",
X			Kexpand, SDELIM, expand_names[Expand], SDELIM
X		);
X	awrite(Ignored.string, Ignored.size, fout);
X	aputc('\n', fout);
X}
X
X
X
X
X	static void
Xputdelta(node,fout)
Xregister const struct hshentry *node;
Xregister FILE * fout;
X/* Function: prints a <delta> node to fout;
X */
X{
X	const struct branchhead *nextbranch;
X
X        if (node == nil) return;
X
X	aprintf(fout, "\n%s\n%s\t%s;\t%s %s;\t%s %s;\nbranches",
X		node->num,
X		Kdate, node->date,
X		Kauthor, node->author,
X		Kstate, node->state?node->state:""
X	);
X        nextbranch = node->branches;
X        while (nextbranch) {
X	       aprintf(fout, "\n\t%s", nextbranch->hsh->num);
X               nextbranch = nextbranch->nextbranch;
X        }
X
X	aprintf(fout, ";\n%s\t%s;\n", Knext, node->next?node->next->num:"");
X	awrite(node->ig.string, node->ig.size, fout);
X}
X
X
X
X
X	void
Xputtree(root,fout)
Xconst struct hshentry * root;
Xregister FILE * fout;
X/* Function: prints the delta tree in preorder to fout, starting with root.
X */
X{
X	const struct branchhead *nextbranch;
X
X        if (root==nil) return;
X
X	if (root->selector)
X		putdelta(root,fout);
X
X        puttree(root->next,fout);
X
X        nextbranch = root->branches;
X        while (nextbranch) {
X             puttree(nextbranch->hsh,fout);
X             nextbranch = nextbranch->nextbranch;
X        }
X}
X
X
X
Xint putdtext(num,log,srcfilename,fout,diffmt)
X	const char *num, *srcfilename;
X	struct cbuf log;
X	FILE *fout;
X	int diffmt;
X/* Function: write a deltatext-node to fout.
X * num points to the deltanumber, log to the logmessage, and
X * sourcefile contains the text. Doubles up all SDELIMs in both the
X * log and the text; Makes sure the log message ends in \n.
X * returns false on error.
X * If diffmt is true, also checks that text is valid diff -n output.
X */
X{
X	FILE *fin;
X	int result;
X	if (!(fin = fopen(srcfilename,"r"))) {
X		eerror(srcfilename);
X		return false;
X	}
X	result = putdftext(num,log,fin,fout,diffmt);
X	ffclose(fin);
X	return result;
X}
X
X	int
Xputdftext(num,log,fin,fout,diffmt)
X	const char *num;
X	struct cbuf log;
X	register FILE *fin;
X	register FILE *fout;
X	int diffmt;
X/* like putdtext(), except the source file is already open */
X{
X	register const char *sp;
X	register int c;
X	register size_t ss;
X	int ed;
X	struct diffcmd dc;
X
X	aprintf(fout,DELNUMFORM,num,Klog);
X        /* put log */
X	afputc(SDELIM,fout);
X	sp = log.string;
X	for (ss = log.size;  ss;  --ss) {
X		if (*sp == SDELIM)
X			aputc(SDELIM,fout);
X		aputc(*sp++,fout);
X	}
X        /* put text */
X	aprintf(fout, "\n%c\n%s\n%c",SDELIM,Ktext,SDELIM);
X	if (!diffmt) {
X	    /* Copy the file */
X	    while ((c=getc(fin))!=EOF) {
X		if (c==SDELIM) aputc(SDELIM,fout);   /*double up SDELIM*/
X		aputc(c,fout);
X	    }
X	} else {
X	    initdiffcmd(&dc);
X	    while (0  <=  (ed = getdiffcmd(fin,EOF,fout,&dc)))
X		if (ed)
X		    while (dc.nlines--)
X			do {
X			    if ((c=getc(fin)) == EOF) {
X				if (!dc.nlines)
X				    goto OK_EOF;
X				faterror("unexpected EOF in diff output");
X			    }
X			    if (c==SDELIM) aputc(SDELIM,fout);
X			    aputc(c,fout);
X			} while (c != '\n');
X	}
X    OK_EOF:
X	aprintf(fout, "%c\n", SDELIM);
X	return true;
X}
X
X	void
Xinitdiffcmd(dc)
X	register struct diffcmd *dc;
X/* Initialize *dc suitably for getdiffcmd(). */
X{
X	dc->adprev = 0;
X	dc->dafter = 0;
X}
X
X	int
Xgetdiffcmd(fin,delimiter,fout,dc)
X	register FILE *fin, *fout;
X	int delimiter;
X	struct diffcmd *dc;
X/* Get a editing command output by 'diff -n' from fin.
X * The input is delimited by the delimiter, which may be EOF for no delimiter.
X * Copy a clean version of the command to fout (if nonnull).
X * Yield 0 for 'd', 1 for 'a', and -1 for EOF.
X * Store the command's line number and length into dc->line1 and dc->nlines.
X * Keep dc->adprev and dc->dafter up to date.
X */
X{
X	register int c;
X	register char *p;
X	unsigned long line1, nlines;
X	char buf[BUFSIZ];
X	c = getc(fin);
X	if (c==delimiter) {
X		if (c!=EOF && fout)
X			aputc(c, fout);
X		return EOF;
X	}
X	p = buf;
X	do {
X		if (c == EOF) {
X			faterror("unexpected EOF in diff output");
X		}
X		if (buf+BUFSIZ-2 <= p) {
X			faterror("diff output command line too long");
X		}
X		*p++ = c;
X	} while ((c=getc(fin)) != '\n');
X	if (delimiter!=EOF)
X		++rcsline;
X	*p = '\0';
X	for (p = buf+1;  *p++ == ' ';)
X		;
X	--p;
X	if (!((buf[0]=='a' || buf[0]=='d')  &&  isdigit(*p))) {
X		faterror("bad diff output: %s", buf);
X	}
X	line1 = 0;
X	do {
X		line1 = line1*10 + (*p++ - '0');
X	} while (isdigit(*p));
X	while (*p++ == ' ')
X		;
X	--p;
X	nlines = 0;
X	while (isdigit(*p))
X		nlines = nlines*10 + (*p++ - '0');
X	if (!nlines) {
X		faterror("incorrect range %lu in diff output: %s", nlines, buf);
X	}
X	switch (buf[0]) {
X	    case 'a':
X		if (line1 < dc->adprev) {
X			faterror("backward insertion in diff output: %s", buf);
X		}
X		dc->adprev = line1 + 1;
X		break;
X	    case 'd':
X		if (line1 < dc->adprev  ||  line1 < dc->dafter) {
X			faterror("backward deletion in diff output: %s", buf);
X		}
X		dc->adprev = line1;
X		dc->dafter = line1 + nlines;
X		break;
X	}
X	if (fout) {
X		aprintf(fout, "%s\n", buf);
X	}
X	dc->line1 = line1;
X	dc->nlines = nlines;
X	return buf[0] == 'a';
X}
X
X
X
X#ifdef SYNTEST
X
Xconst char cmdid[] = "syntest";
X
X	int
Xmain(argc,argv)
Xint argc; char * argv[];
X{
X
X        if (argc<2) {
X		aputs("No input file\n",stderr);
X		exitmain(EXIT_FAILURE);
X        }
X        if ((finptr=fopen(argv[1], "r")) == NULL) {
X		faterror("can't open input file %s", argv[1]);
X        }
X        Lexinit();
X        getadmin();
X        putadmin(stdout);
X
X        gettree();
X        puttree(Head,stdout);
X
X        getdesc(true);
X
X        if (nextlex(),nexttok!=EOFILE) {
X		fatserror("expecting EOF");
X        }
X	exitmain(EXIT_SUCCESS);
X}
X
X
Xexiting void exiterr() { _exit(EXIT_FAILURE); }
X
X
X#endif
X
END_OF_FILE
  if test 18364 -ne `wc -c <'src/rcssyn.c'`; then
    echo shar: \"'src/rcssyn.c'\" unpacked with wrong size!
  fi
  # end of 'src/rcssyn.c'
fi
echo shar: End of archive 8 \(of 12\).
cp /dev/null ark8isdone
MISSING=""
for I in 1 2 3 4 5 6 7 8 9 10 11 12 ; do
    if test ! -f ark${I}isdone ; then
	MISSING="${MISSING} ${I}"
    fi
done
if test "${MISSING}" = "" ; then
    echo You have unpacked all 12 archives.
    rm -f ark[1-9]isdone ark[1-9][0-9]isdone
else
    echo You still must unpack the following archives:
    echo "        " ${MISSING}
fi
exit 0
exit 0 # Just in case...
-- 
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