1744 lines
30 KiB
C
1744 lines
30 KiB
C
/* $NetBSD: deroff.c,v 1.9 2011/08/31 13:38:19 joerg Exp $ */
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/* taken from: OpenBSD: deroff.c,v 1.6 2004/06/02 14:58:46 tom Exp */
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/*-
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* Copyright (c) 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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/*
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* Copyright (C) Caldera International Inc. 2001-2002.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code and documentation must retain the above
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* copyright notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed or owned by Caldera
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* International, Inc.
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* 4. Neither the name of Caldera International, Inc. nor the names of other
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* USE OF THE SOFTWARE PROVIDED FOR UNDER THIS LICENSE BY CALDERA
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* INTERNATIONAL, INC. AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL CALDERA INTERNATIONAL, INC. BE LIABLE FOR ANY DIRECT,
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* INDIRECT INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1988, 1993\n\
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The Regents of the University of California. All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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#if 0
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static const char sccsid[] = "@(#)deroff.c 8.1 (Berkeley) 6/6/93";
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#else
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static const char rcsid[] = "$NetBSD: deroff.c,v 1.9 2011/08/31 13:38:19 joerg Exp $";
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#endif
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#endif /* not lint */
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#include <sys/cdefs.h>
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#include <err.h>
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#include <limits.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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/*
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* Deroff command -- strip troff, eqn, and Tbl sequences from
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* a file. Has two flags argument, -w, to cause output one word per line
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* rather than in the original format.
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* -mm (or -ms) causes the corresponding macro's to be interpreted
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* so that just sentences are output
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* -ml also gets rid of lists.
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* Deroff follows .so and .nx commands, removes contents of macro
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* definitions, equations (both .EQ ... .EN and $...$),
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* Tbl command sequences, and Troff backslash constructions.
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*
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* All input is through the Cget macro;
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* the most recently read character is in c.
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*
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* Modified by Robert Henry to process -me and -man macros.
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*/
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#define Cget ( (c=getc(infile)) == EOF ? eof() : ((c==ldelim)&&(filesp==files) ? skeqn() : c) )
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#define C1get ( (c=getc(infile)) == EOF ? eof() : c)
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#ifdef DEBUG
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# define C _C()
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# define C1 _C1()
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#else /* not DEBUG */
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# define C Cget
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# define C1 C1get
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#endif /* not DEBUG */
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#define SKIP while (C != '\n')
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#define SKIP_TO_COM SKIP; SKIP; pc=c; while (C != '.' || pc != '\n' || C > 'Z')pc=c
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#define YES 1
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#define NO 0
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#define MS 0 /* -ms */
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#define MM 1 /* -mm */
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#define ME 2 /* -me */
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#define MA 3 /* -man */
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#ifdef DEBUG
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static char *mactab[] = { "-ms", "-mm", "-me", "-ma" };
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#endif /* DEBUG */
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#define ONE 1
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#define TWO 2
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#define NOCHAR -2
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#define SPECIAL 0
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#define APOS 1
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#define PUNCT 2
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#define DIGIT 3
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#define LETTER 4
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#define MAXFILES 20
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static int iflag;
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static int wordflag;
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static int msflag; /* processing a source written using a mac package */
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static int mac; /* which package */
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static int disp;
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static int parag;
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static int inmacro;
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static int intable;
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static int keepblock; /* keep blocks of text; normally false when msflag */
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static char chars[128]; /* SPECIAL, PUNCT, APOS, DIGIT, or LETTER */
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static char line[LINE_MAX];
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static char *lp;
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static int c;
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static int pc;
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static int ldelim;
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static int rdelim;
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static char fname[PATH_MAX];
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static FILE *files[MAXFILES];
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static FILE **filesp;
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static FILE *infile;
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static int argc;
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static char **argv;
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/*
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* Macro processing
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*
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* Macro table definitions
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*/
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typedef int pacmac; /* compressed macro name */
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static int argconcat = 0; /* concat arguments together (-me only) */
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#define tomac(c1, c2) ((((c1) & 0xFF) << 8) | ((c2) & 0xFF))
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#define frommac(src, c1, c2) (((c1)=((src)>>8)&0xFF),((c2) =(src)&0xFF))
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struct mactab {
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int condition;
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pacmac macname;
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int (*func)(pacmac);
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};
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static const struct mactab troffmactab[];
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static const struct mactab ppmactab[];
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static const struct mactab msmactab[];
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static const struct mactab mmmactab[];
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static const struct mactab memactab[];
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static const struct mactab manmactab[];
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/*
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* Macro table initialization
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*/
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#define M(cond, c1, c2, func) {cond, tomac(c1, c2), func}
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/*
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* Flags for matching conditions other than
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* the macro name
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*/
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#define NONE 0
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#define FNEST 1 /* no nested files */
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#define NOMAC 2 /* no macro */
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#define MAC 3 /* macro */
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#define PARAG 4 /* in a paragraph */
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#define MSF 5 /* msflag is on */
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#define NBLK 6 /* set if no blocks to be kept */
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/*
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* Return codes from macro minions, determine where to jump,
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* how to repeat/reprocess text
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*/
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#define COMX 1 /* goto comx */
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#define COM 2 /* goto com */
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static int skeqn(void);
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static int eof(void);
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#ifdef DEBUG
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static int _C1(void);
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static int _C(void);
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#endif
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static int EQ(pacmac);
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static int domacro(pacmac);
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static int PS(pacmac);
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static int skip(pacmac);
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static int intbl(pacmac);
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static int outtbl(pacmac);
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static int so(pacmac);
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static int nx(pacmac);
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static int skiptocom(pacmac);
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static int PP(pacmac);
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static int AU(pacmac);
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static int SH(pacmac);
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static int UX(pacmac);
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static int MMHU(pacmac);
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static int mesnblock(pacmac);
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static int mssnblock(pacmac);
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static int nf(pacmac);
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static int ce(pacmac);
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static int meip(pacmac);
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static int mepp(pacmac);
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static int mesh(pacmac);
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static int mefont(pacmac);
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static int manfont(pacmac);
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static int manpp(pacmac);
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static int macsort(const void *, const void *);
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static int sizetab(const struct mactab *);
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static void getfname(void);
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static void textline(char *, int);
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static void work(void) __dead;
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static void regline(void (*)(char *, int), int);
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static void macro(void);
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static void tbl(void);
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static void stbl(void);
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static void eqn(void);
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static void backsl(void);
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static void sce(void);
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static void refer(int);
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static void inpic(void);
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static void msputmac(char *, int);
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static void msputwords(int);
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static void meputmac(char *, int);
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static void meputwords(int);
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static void noblock(char, char);
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static void defcomline(pacmac);
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static void comline(void);
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static void buildtab(const struct mactab **, int *);
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static FILE *opn(char *);
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static struct mactab *macfill(struct mactab *, const struct mactab *);
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static void usage(void) __dead;
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int
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main(int ac, char **av)
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{
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int i, ch;
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int errflg = 0;
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int kflag = NO;
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iflag = NO;
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wordflag = NO;
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msflag = NO;
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mac = ME;
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disp = NO;
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parag = NO;
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inmacro = NO;
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intable = NO;
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ldelim = NOCHAR;
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rdelim = NOCHAR;
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keepblock = YES;
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while ((ch = getopt(ac, av, "ikpwm:")) != -1) {
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switch (ch) {
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case 'i':
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iflag = YES;
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break;
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case 'k':
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kflag = YES;
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break;
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case 'm':
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msflag = YES;
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keepblock = NO;
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switch (optarg[0]) {
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case 'm':
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mac = MM;
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break;
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case 's':
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mac = MS;
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break;
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case 'e':
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mac = ME;
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break;
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case 'a':
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mac = MA;
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break;
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case 'l':
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disp = YES;
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break;
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default:
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errflg++;
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break;
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}
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if (errflg == 0 && optarg[1] != '\0')
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errflg++;
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break;
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case 'p':
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parag = YES;
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break;
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case 'w':
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wordflag = YES;
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kflag = YES;
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break;
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default:
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errflg++;
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}
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}
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argc = ac - optind;
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argv = av + optind;
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if (kflag)
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keepblock = YES;
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if (errflg)
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usage();
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#ifdef DEBUG
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printf("msflag = %d, mac = %s, keepblock = %d, disp = %d\n",
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msflag, mactab[mac], keepblock, disp);
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#endif /* DEBUG */
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if (argc == 0) {
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infile = stdin;
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} else {
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infile = opn(argv[0]);
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--argc;
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++argv;
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}
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files[0] = infile;
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filesp = &files[0];
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for (i = 'a'; i <= 'z' ; ++i)
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chars[i] = LETTER;
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for (i = 'A'; i <= 'Z'; ++i)
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chars[i] = LETTER;
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for (i = '0'; i <= '9'; ++i)
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chars[i] = DIGIT;
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chars['\''] = APOS;
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chars['&'] = APOS;
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chars['.'] = PUNCT;
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chars[','] = PUNCT;
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chars[';'] = PUNCT;
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chars['?'] = PUNCT;
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chars[':'] = PUNCT;
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work();
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return 0;
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}
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static int
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skeqn(void)
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{
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while ((c = getc(infile)) != rdelim) {
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if (c == EOF)
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c = eof();
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else if (c == '"') {
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while ((c = getc(infile)) != '"') {
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if (c == EOF ||
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(c == '\\' && (c = getc(infile)) == EOF))
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c = eof();
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}
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}
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}
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if (msflag)
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return c == 'x';
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return c == ' ';
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}
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static FILE *
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opn(char *p)
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{
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FILE *fd;
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if ((fd = fopen(p, "r")) == NULL)
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err(1, "fopen %s", p);
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return fd;
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}
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static int
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eof(void)
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{
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if (infile != stdin)
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fclose(infile);
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if (filesp > files)
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infile = *--filesp;
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else if (argc > 0) {
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infile = opn(argv[0]);
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--argc;
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++argv;
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} else
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exit(0);
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return C;
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}
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static void
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getfname(void)
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{
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char *p;
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struct chain {
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struct chain *nextp;
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char *datap;
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} *q;
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static struct chain *namechain= NULL;
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while (C == ' ')
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; /* nothing */
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for (p = fname ; p - fname < (ptrdiff_t)sizeof(fname) &&
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(*p = c) != '\n' &&
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c != ' ' && c != '\t' && c != '\\'; ++p)
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C;
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*p = '\0';
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while (c != '\n')
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C;
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/* see if this name has already been used */
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for (q = namechain ; q; q = q->nextp)
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if (strcmp(fname, q->datap) == 0) {
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fname[0] = '\0';
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return;
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}
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q = (struct chain *) malloc(sizeof(struct chain));
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if (q == NULL)
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err(1, NULL);
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q->nextp = namechain;
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q->datap = strdup(fname);
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if (q->datap == NULL)
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err(1, NULL);
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namechain = q;
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}
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/*ARGSUSED*/
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static void
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textline(char *str, int constant)
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{
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if (wordflag) {
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msputwords(0);
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return;
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}
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puts(str);
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}
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static void
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work(void)
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{
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for (;;) {
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C;
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#ifdef FULLDEBUG
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printf("Starting work with `%c'\n", c);
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#endif /* FULLDEBUG */
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if (c == '.' || c == '\'')
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comline();
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else
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regline(textline, TWO);
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}
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}
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static void
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regline(void (*pfunc)(char *, int), int constant)
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{
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line[0] = c;
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lp = line;
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while (lp - line < (ptrdiff_t)sizeof(line)) {
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if (c == '\\') {
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*lp = ' ';
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backsl();
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}
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if (c == '\n')
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break;
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if (intable && c == 'T') {
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*++lp = C;
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if (c == '{' || c == '}') {
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lp[-1] = ' ';
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*lp = C;
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}
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} else {
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*++lp = C;
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}
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}
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*lp = '\0';
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if (line[0] != '\0')
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(*pfunc)(line, constant);
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}
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static void
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macro(void)
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{
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if (msflag) {
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do {
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SKIP;
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} while (C!='.' || C!='.' || C=='.'); /* look for .. */
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if (c != '\n')
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SKIP;
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return;
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}
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SKIP;
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inmacro = YES;
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}
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static void
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tbl(void)
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{
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|
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while (C != '.')
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; /* nothing */
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SKIP;
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intable = YES;
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}
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static void
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stbl(void)
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{
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while (C != '.')
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; /* nothing */
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SKIP_TO_COM;
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if (c != 'T' || C != 'E') {
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SKIP;
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pc = c;
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while (C != '.' || pc != '\n' || C != 'T' || C != 'E')
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pc = c;
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}
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}
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static void
|
|
eqn(void)
|
|
{
|
|
int c1, c2;
|
|
int dflg;
|
|
char last;
|
|
|
|
last=0;
|
|
dflg = 1;
|
|
SKIP;
|
|
|
|
for (;;) {
|
|
if (C1 == '.' || c == '\'') {
|
|
while (C1 == ' ' || c == '\t')
|
|
;
|
|
if (c == 'E' && C1 == 'N') {
|
|
SKIP;
|
|
if (msflag && dflg) {
|
|
putchar('x');
|
|
putchar(' ');
|
|
if (last) {
|
|
putchar(last);
|
|
putchar('\n');
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
} else if (c == 'd') {
|
|
/* look for delim */
|
|
if (C1 == 'e' && C1 == 'l')
|
|
if (C1 == 'i' && C1 == 'm') {
|
|
while (C1 == ' ')
|
|
; /* nothing */
|
|
|
|
if ((c1 = c) == '\n' ||
|
|
(c2 = C1) == '\n' ||
|
|
(c1 == 'o' && c2 == 'f' && C1=='f')) {
|
|
ldelim = NOCHAR;
|
|
rdelim = NOCHAR;
|
|
} else {
|
|
ldelim = c1;
|
|
rdelim = c2;
|
|
}
|
|
}
|
|
dflg = 0;
|
|
}
|
|
|
|
if (c != '\n')
|
|
while (C1 != '\n') {
|
|
if (chars[c] == PUNCT)
|
|
last = c;
|
|
else if (c != ' ')
|
|
last = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* skip over a complete backslash construction */
|
|
static void
|
|
backsl(void)
|
|
{
|
|
int bdelim;
|
|
|
|
sw:
|
|
switch (C) {
|
|
case '"':
|
|
SKIP;
|
|
return;
|
|
|
|
case 's':
|
|
if (C == '\\')
|
|
backsl();
|
|
else {
|
|
while (C >= '0' && c <= '9')
|
|
; /* nothing */
|
|
ungetc(c, infile);
|
|
c = '0';
|
|
}
|
|
--lp;
|
|
return;
|
|
|
|
case 'f':
|
|
case 'n':
|
|
case '*':
|
|
if (C != '(')
|
|
return;
|
|
|
|
case '(':
|
|
if (msflag) {
|
|
if (C == 'e') {
|
|
if (C == 'm') {
|
|
*lp = '-';
|
|
return;
|
|
}
|
|
}
|
|
else if (c != '\n')
|
|
C;
|
|
return;
|
|
}
|
|
if (C != '\n')
|
|
C;
|
|
return;
|
|
|
|
case '$':
|
|
C; /* discard argument number */
|
|
return;
|
|
|
|
case 'b':
|
|
case 'x':
|
|
case 'v':
|
|
case 'h':
|
|
case 'w':
|
|
case 'o':
|
|
case 'l':
|
|
case 'L':
|
|
if ((bdelim = C) == '\n')
|
|
return;
|
|
while (C != '\n' && c != bdelim)
|
|
if (c == '\\')
|
|
backsl();
|
|
return;
|
|
|
|
case '\\':
|
|
if (inmacro)
|
|
goto sw;
|
|
|
|
default:
|
|
return;
|
|
}
|
|
}
|
|
|
|
static void
|
|
sce(void)
|
|
{
|
|
char *ap;
|
|
int n, i;
|
|
char a[10];
|
|
|
|
for (ap = a; C != '\n'; ap++) {
|
|
*ap = c;
|
|
if (ap == &a[9]) {
|
|
SKIP;
|
|
ap = a;
|
|
break;
|
|
}
|
|
}
|
|
if (ap != a)
|
|
n = atoi(a);
|
|
else
|
|
n = 1;
|
|
for (i = 0; i < n;) {
|
|
if (C == '.') {
|
|
if (C == 'c') {
|
|
if (C == 'e') {
|
|
while (C == ' ')
|
|
; /* nothing */
|
|
if (c == '0') {
|
|
SKIP;
|
|
break;
|
|
} else
|
|
SKIP;
|
|
}
|
|
else
|
|
SKIP;
|
|
} else if (c == 'P' || C == 'P') {
|
|
if (c != '\n')
|
|
SKIP;
|
|
break;
|
|
} else if (c != '\n')
|
|
SKIP;
|
|
} else {
|
|
SKIP;
|
|
i++;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
refer(int c1)
|
|
{
|
|
int c2;
|
|
|
|
if (c1 != '\n')
|
|
SKIP;
|
|
|
|
for (c2 = -1;;) {
|
|
if (C != '.')
|
|
SKIP;
|
|
else {
|
|
if (C != ']')
|
|
SKIP;
|
|
else {
|
|
while (C != '\n')
|
|
c2 = c;
|
|
if (c2 != -1 && chars[c2] == PUNCT)
|
|
putchar(c2);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
inpic(void)
|
|
{
|
|
int c1;
|
|
char *p1;
|
|
|
|
SKIP;
|
|
p1 = line;
|
|
c = '\n';
|
|
for (;;) {
|
|
c1 = c;
|
|
if (C == '.' && c1 == '\n') {
|
|
if (C != 'P') {
|
|
if (c == '\n')
|
|
continue;
|
|
else {
|
|
SKIP;
|
|
c = '\n';
|
|
continue;
|
|
}
|
|
}
|
|
if (C != 'E') {
|
|
if (c == '\n')
|
|
continue;
|
|
else {
|
|
SKIP;
|
|
c = '\n';
|
|
continue;
|
|
}
|
|
}
|
|
SKIP;
|
|
return;
|
|
}
|
|
else if (c == '\"') {
|
|
while (C != '\"') {
|
|
if (c == '\\') {
|
|
if (C == '\"')
|
|
continue;
|
|
ungetc(c, infile);
|
|
backsl();
|
|
} else
|
|
*p1++ = c;
|
|
}
|
|
*p1++ = ' ';
|
|
}
|
|
else if (c == '\n' && p1 != line) {
|
|
*p1 = '\0';
|
|
if (wordflag)
|
|
msputwords(NO);
|
|
else {
|
|
puts(line);
|
|
putchar('\n');
|
|
}
|
|
p1 = line;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
static int
|
|
_C1(void)
|
|
{
|
|
|
|
return C1get;
|
|
}
|
|
|
|
static int
|
|
_C(void)
|
|
{
|
|
|
|
return Cget;
|
|
}
|
|
#endif /* DEBUG */
|
|
|
|
/*
|
|
* Put out a macro line, using ms and mm conventions.
|
|
*/
|
|
static void
|
|
msputmac(char *s, int constant)
|
|
{
|
|
char *t;
|
|
int found;
|
|
int last;
|
|
|
|
last = 0;
|
|
found = 0;
|
|
if (wordflag) {
|
|
msputwords(YES);
|
|
return;
|
|
}
|
|
while (*s) {
|
|
while (*s == ' ' || *s == '\t')
|
|
putchar(*s++);
|
|
for (t = s ; *t != ' ' && *t != '\t' && *t != '\0' ; ++t)
|
|
; /* nothing */
|
|
if (*s == '\"')
|
|
s++;
|
|
if (t > s + constant && chars[(unsigned char)s[0]] == LETTER &&
|
|
chars[(unsigned char)s[1]] == LETTER) {
|
|
while (s < t)
|
|
if (*s == '\"')
|
|
s++;
|
|
else
|
|
putchar(*s++);
|
|
last = *(t-1);
|
|
found++;
|
|
} else if (found && chars[(unsigned char)s[0]] == PUNCT &&
|
|
s[1] == '\0') {
|
|
putchar(*s++);
|
|
} else {
|
|
last = *(t - 1);
|
|
s = t;
|
|
}
|
|
}
|
|
putchar('\n');
|
|
if (msflag && chars[last] == PUNCT) {
|
|
putchar(last);
|
|
putchar('\n');
|
|
}
|
|
}
|
|
|
|
/*
|
|
* put out words (for the -w option) with ms and mm conventions
|
|
*/
|
|
static void
|
|
msputwords(int macline)
|
|
{
|
|
char *p, *p1;
|
|
int i, nlet;
|
|
|
|
for (p1 = line;;) {
|
|
/*
|
|
* skip initial specials ampersands and apostrophes
|
|
*/
|
|
while (chars[(unsigned char)*p1] < DIGIT)
|
|
if (*p1++ == '\0')
|
|
return;
|
|
nlet = 0;
|
|
for (p = p1 ; (i = chars[(unsigned char)*p]) != SPECIAL ; ++p)
|
|
if (i == LETTER)
|
|
++nlet;
|
|
|
|
if (nlet > 1 && chars[(unsigned char)p1[0]] == LETTER) {
|
|
/*
|
|
* delete trailing ampersands and apostrophes
|
|
*/
|
|
while ((i = chars[(unsigned char)p[-1]]) == PUNCT ||
|
|
i == APOS )
|
|
--p;
|
|
while (p1 < p)
|
|
putchar(*p1++);
|
|
putchar('\n');
|
|
} else {
|
|
p1 = p;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* put out a macro using the me conventions
|
|
*/
|
|
#define SKIPBLANK(cp) while (*cp == ' ' || *cp == '\t') { cp++; }
|
|
#define SKIPNONBLANK(cp) while (*cp !=' ' && *cp !='\cp' && *cp !='\0') { cp++; }
|
|
|
|
static void
|
|
meputmac(char *cp, int constant)
|
|
{
|
|
char *np;
|
|
int found;
|
|
int argno;
|
|
int last;
|
|
int inquote;
|
|
|
|
last = 0;
|
|
found = 0;
|
|
if (wordflag) {
|
|
meputwords(YES);
|
|
return;
|
|
}
|
|
for (argno = 0; *cp; argno++) {
|
|
SKIPBLANK(cp);
|
|
inquote = (*cp == '"');
|
|
if (inquote)
|
|
cp++;
|
|
for (np = cp; *np; np++) {
|
|
switch (*np) {
|
|
case '\n':
|
|
case '\0':
|
|
break;
|
|
|
|
case '\t':
|
|
case ' ':
|
|
if (inquote)
|
|
continue;
|
|
else
|
|
goto endarg;
|
|
|
|
case '"':
|
|
if (inquote && np[1] == '"') {
|
|
memmove(np, np + 1, strlen(np));
|
|
np++;
|
|
continue;
|
|
} else {
|
|
*np = ' '; /* bye bye " */
|
|
goto endarg;
|
|
}
|
|
|
|
default:
|
|
continue;
|
|
}
|
|
}
|
|
endarg: ;
|
|
/*
|
|
* cp points at the first char in the arg
|
|
* np points one beyond the last char in the arg
|
|
*/
|
|
if ((argconcat == 0) || (argconcat != argno))
|
|
putchar(' ');
|
|
#ifdef FULLDEBUG
|
|
{
|
|
char *p;
|
|
printf("[%d,%d: ", argno, np - cp);
|
|
for (p = cp; p < np; p++) {
|
|
putchar(*p);
|
|
}
|
|
printf("]");
|
|
}
|
|
#endif /* FULLDEBUG */
|
|
/*
|
|
* Determine if the argument merits being printed
|
|
*
|
|
* constant is the cut off point below which something
|
|
* is not a word.
|
|
*/
|
|
if (((np - cp) > constant) &&
|
|
(inquote || (chars[(unsigned char)cp[0]] == LETTER))) {
|
|
for (; cp < np; cp++)
|
|
putchar(*cp);
|
|
last = np[-1];
|
|
found++;
|
|
} else if (found && (np - cp == 1) &&
|
|
chars[(unsigned char)*cp] == PUNCT) {
|
|
putchar(*cp);
|
|
} else {
|
|
last = np[-1];
|
|
}
|
|
cp = np;
|
|
}
|
|
if (msflag && chars[last] == PUNCT)
|
|
putchar(last);
|
|
putchar('\n');
|
|
}
|
|
|
|
/*
|
|
* put out words (for the -w option) with ms and mm conventions
|
|
*/
|
|
static void
|
|
meputwords(int macline)
|
|
{
|
|
|
|
msputwords(macline);
|
|
}
|
|
|
|
/*
|
|
*
|
|
* Skip over a nested set of macros
|
|
*
|
|
* Possible arguments to noblock are:
|
|
*
|
|
* fi end of unfilled text
|
|
* PE pic ending
|
|
* DE display ending
|
|
*
|
|
* for ms and mm only:
|
|
* KE keep ending
|
|
*
|
|
* NE undocumented match to NS (for mm?)
|
|
* LE mm only: matches RL or *L (for lists)
|
|
*
|
|
* for me:
|
|
* ([lqbzcdf]
|
|
*/
|
|
static void
|
|
noblock(char a1, char a2)
|
|
{
|
|
int c1,c2;
|
|
int eqnf;
|
|
int lct;
|
|
|
|
lct = 0;
|
|
eqnf = 1;
|
|
SKIP;
|
|
for (;;) {
|
|
while (C != '.')
|
|
if (c == '\n')
|
|
continue;
|
|
else
|
|
SKIP;
|
|
if ((c1 = C) == '\n')
|
|
continue;
|
|
if ((c2 = C) == '\n')
|
|
continue;
|
|
if (c1 == a1 && c2 == a2) {
|
|
SKIP;
|
|
if (lct != 0) {
|
|
lct--;
|
|
continue;
|
|
}
|
|
if (eqnf)
|
|
putchar('.');
|
|
putchar('\n');
|
|
return;
|
|
} else if (a1 == 'L' && c2 == 'L') {
|
|
lct++;
|
|
SKIP;
|
|
}
|
|
/*
|
|
* equations (EQ) nested within a display
|
|
*/
|
|
else if (c1 == 'E' && c2 == 'Q') {
|
|
if ((mac == ME && a1 == ')')
|
|
|| (mac != ME && a1 == 'D')) {
|
|
eqn();
|
|
eqnf=0;
|
|
}
|
|
}
|
|
/*
|
|
* turning on filling is done by the paragraphing
|
|
* macros
|
|
*/
|
|
else if (a1 == 'f') { /* .fi */
|
|
if ((mac == ME && (c2 == 'h' || c2 == 'p'))
|
|
|| (mac != ME && (c1 == 'P' || c2 == 'P'))) {
|
|
SKIP;
|
|
return;
|
|
}
|
|
} else {
|
|
SKIP;
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
EQ(pacmac unused)
|
|
{
|
|
|
|
eqn();
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
domacro(pacmac unused)
|
|
{
|
|
|
|
macro();
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
PS(pacmac unused)
|
|
{
|
|
|
|
for (C; c == ' ' || c == '\t'; C)
|
|
; /* nothing */
|
|
|
|
if (c == '<') { /* ".PS < file" -- don't expect a .PE */
|
|
SKIP;
|
|
return 0;
|
|
}
|
|
if (!msflag)
|
|
inpic();
|
|
else
|
|
noblock('P', 'E');
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
skip(pacmac unused)
|
|
{
|
|
|
|
SKIP;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
intbl(pacmac unused)
|
|
{
|
|
|
|
if (msflag)
|
|
stbl();
|
|
else
|
|
tbl();
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
outtbl(pacmac unused)
|
|
{
|
|
|
|
intable = NO;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
so(pacmac unused)
|
|
{
|
|
|
|
if (!iflag) {
|
|
getfname();
|
|
if (fname[0]) {
|
|
if (++filesp - &files[0] > MAXFILES)
|
|
err(1, "too many nested files (max %d)",
|
|
MAXFILES);
|
|
infile = *filesp = opn(fname);
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
nx(pacmac unused)
|
|
{
|
|
|
|
if (!iflag) {
|
|
getfname();
|
|
if (fname[0] == '\0')
|
|
exit(0);
|
|
if (infile != stdin)
|
|
fclose(infile);
|
|
infile = *filesp = opn(fname);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
skiptocom(pacmac unused)
|
|
{
|
|
|
|
SKIP_TO_COM;
|
|
return COMX;
|
|
}
|
|
|
|
static int
|
|
PP(pacmac c12)
|
|
{
|
|
int c1, c2;
|
|
|
|
frommac(c12, c1, c2);
|
|
printf(".%c%c", c1, c2);
|
|
while (C != '\n')
|
|
putchar(c);
|
|
putchar('\n');
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
AU(pacmac unused)
|
|
{
|
|
|
|
if (mac == MM)
|
|
return 0;
|
|
SKIP_TO_COM;
|
|
return COMX;
|
|
}
|
|
|
|
static int
|
|
SH(pacmac c12)
|
|
{
|
|
int c1, c2;
|
|
|
|
frommac(c12, c1, c2);
|
|
|
|
if (parag) {
|
|
printf(".%c%c", c1, c2);
|
|
while (C != '\n')
|
|
putchar(c);
|
|
putchar(c);
|
|
putchar('!');
|
|
for (;;) {
|
|
while (C != '\n')
|
|
putchar(c);
|
|
putchar('\n');
|
|
if (C == '.')
|
|
return COM;
|
|
putchar('!');
|
|
putchar(c);
|
|
}
|
|
/*NOTREACHED*/
|
|
} else {
|
|
SKIP_TO_COM;
|
|
return COMX;
|
|
}
|
|
}
|
|
|
|
static int
|
|
/*ARGSUSED*/
|
|
UX(pacmac unused)
|
|
{
|
|
|
|
if (wordflag)
|
|
printf("UNIX\n");
|
|
else
|
|
printf("UNIX ");
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
MMHU(pacmac c12)
|
|
{
|
|
int c1, c2;
|
|
|
|
frommac(c12, c1, c2);
|
|
if (parag) {
|
|
printf(".%c%c", c1, c2);
|
|
while (C != '\n')
|
|
putchar(c);
|
|
putchar('\n');
|
|
} else {
|
|
SKIP;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mesnblock(pacmac c12)
|
|
{
|
|
int c1, c2;
|
|
|
|
frommac(c12, c1, c2);
|
|
noblock(')', c2);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mssnblock(pacmac c12)
|
|
{
|
|
int c1, c2;
|
|
|
|
frommac(c12, c1, c2);
|
|
noblock(c1, 'E');
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGUSED*/
|
|
nf(pacmac unused)
|
|
{
|
|
|
|
noblock('f', 'i');
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
/*ARGUSED*/
|
|
ce(pacmac unused)
|
|
{
|
|
|
|
sce();
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
meip(pacmac c12)
|
|
{
|
|
|
|
if (parag)
|
|
mepp(c12);
|
|
else if (wordflag) /* save the tag */
|
|
regline(meputmac, ONE);
|
|
else
|
|
SKIP;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* only called for -me .pp or .sh, when parag is on
|
|
*/
|
|
static int
|
|
mepp(pacmac c12)
|
|
{
|
|
|
|
PP(c12); /* eats the line */
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Start of a section heading; output the section name if doing words
|
|
*/
|
|
static int
|
|
mesh(pacmac c12)
|
|
{
|
|
|
|
if (parag)
|
|
mepp(c12);
|
|
else if (wordflag)
|
|
defcomline(c12);
|
|
else
|
|
SKIP;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* process a font setting
|
|
*/
|
|
static int
|
|
mefont(pacmac c12)
|
|
{
|
|
|
|
argconcat = 1;
|
|
defcomline(c12);
|
|
argconcat = 0;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
manfont(pacmac c12)
|
|
{
|
|
|
|
return mefont(c12);
|
|
}
|
|
|
|
static int
|
|
manpp(pacmac c12)
|
|
{
|
|
|
|
return mepp(c12);
|
|
}
|
|
|
|
static void
|
|
defcomline(pacmac c12)
|
|
{
|
|
int c1, c2;
|
|
|
|
frommac(c12, c1, c2);
|
|
if (msflag && mac == MM && c2 == 'L') {
|
|
if (disp || c1 == 'R') {
|
|
noblock('L', 'E');
|
|
} else {
|
|
SKIP;
|
|
putchar('.');
|
|
}
|
|
}
|
|
else if (c1 == '.' && c2 == '.') {
|
|
if (msflag) {
|
|
SKIP;
|
|
return;
|
|
}
|
|
while (C == '.')
|
|
/*VOID*/;
|
|
}
|
|
++inmacro;
|
|
/*
|
|
* Process the arguments to the macro
|
|
*/
|
|
switch (mac) {
|
|
default:
|
|
case MM:
|
|
case MS:
|
|
if (c1 <= 'Z' && msflag)
|
|
regline(msputmac, ONE);
|
|
else
|
|
regline(msputmac, TWO);
|
|
break;
|
|
case ME:
|
|
regline(meputmac, ONE);
|
|
break;
|
|
}
|
|
--inmacro;
|
|
}
|
|
|
|
static void
|
|
comline(void)
|
|
{
|
|
int c1;
|
|
int c2;
|
|
pacmac c12;
|
|
int mid;
|
|
int lb, ub;
|
|
int hit;
|
|
static int tabsize = 0;
|
|
static const struct mactab *mactab = NULL;
|
|
const struct mactab *mp;
|
|
|
|
if (mactab == 0)
|
|
buildtab(&mactab, &tabsize);
|
|
com:
|
|
while (C == ' ' || c == '\t')
|
|
;
|
|
comx:
|
|
if ((c1 = c) == '\n')
|
|
return;
|
|
c2 = C;
|
|
if (c1 == '.' && c2 != '.')
|
|
inmacro = NO;
|
|
if (msflag && c1 == '[') {
|
|
refer(c2);
|
|
return;
|
|
}
|
|
if (parag && mac==MM && c1 == 'P' && c2 == '\n') {
|
|
printf(".P\n");
|
|
return;
|
|
}
|
|
if (c2 == '\n')
|
|
return;
|
|
/*
|
|
* Single letter macro
|
|
*/
|
|
if (mac == ME && (c2 == ' ' || c2 == '\t') )
|
|
c2 = ' ';
|
|
c12 = tomac(c1, c2);
|
|
/*
|
|
* binary search through the table of macros
|
|
*/
|
|
lb = 0;
|
|
ub = tabsize - 1;
|
|
while (lb <= ub) {
|
|
mid = (ub + lb) / 2;
|
|
mp = &mactab[mid];
|
|
if (mp->macname < c12)
|
|
lb = mid + 1;
|
|
else if (mp->macname > c12)
|
|
ub = mid - 1;
|
|
else {
|
|
hit = 1;
|
|
#ifdef FULLDEBUG
|
|
printf("preliminary hit macro %c%c ", c1, c2);
|
|
#endif /* FULLDEBUG */
|
|
switch (mp->condition) {
|
|
case NONE:
|
|
hit = YES;
|
|
break;
|
|
case FNEST:
|
|
hit = (filesp == files);
|
|
break;
|
|
case NOMAC:
|
|
hit = !inmacro;
|
|
break;
|
|
case MAC:
|
|
hit = inmacro;
|
|
break;
|
|
case PARAG:
|
|
hit = parag;
|
|
break;
|
|
case NBLK:
|
|
hit = !keepblock;
|
|
break;
|
|
default:
|
|
hit = 0;
|
|
}
|
|
|
|
if (hit) {
|
|
#ifdef FULLDEBUG
|
|
printf("MATCH\n");
|
|
#endif /* FULLDEBUG */
|
|
switch ((*(mp->func))(c12)) {
|
|
default:
|
|
return;
|
|
case COMX:
|
|
goto comx;
|
|
case COM:
|
|
goto com;
|
|
}
|
|
}
|
|
#ifdef FULLDEBUG
|
|
printf("FAIL\n");
|
|
#endif /* FULLDEBUG */
|
|
break;
|
|
}
|
|
}
|
|
defcomline(c12);
|
|
}
|
|
|
|
static int
|
|
macsort(const void *p1, const void *p2)
|
|
{
|
|
const struct mactab *t1 = p1;
|
|
const struct mactab *t2 = p2;
|
|
|
|
return t1->macname - t2->macname;
|
|
}
|
|
|
|
static int
|
|
sizetab(const struct mactab *mp)
|
|
{
|
|
int i;
|
|
|
|
i = 0;
|
|
if (mp) {
|
|
for (; mp->macname; mp++, i++)
|
|
/*VOID*/ ;
|
|
}
|
|
return i;
|
|
}
|
|
|
|
static struct mactab *
|
|
macfill(struct mactab *dst, const struct mactab *src)
|
|
{
|
|
|
|
if (src) {
|
|
while (src->macname)
|
|
*dst++ = *src++;
|
|
}
|
|
return dst;
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
extern char *__progname;
|
|
|
|
fprintf(stderr, "usage: %s [-ikpw ] [ -m a | e | l | m | s] [file ...]\n", __progname);
|
|
exit(1);
|
|
}
|
|
|
|
static void
|
|
buildtab(const struct mactab **r_back, int *r_size)
|
|
{
|
|
size_t size;
|
|
const struct mactab *p1, *p2;
|
|
struct mactab *back, *p;
|
|
|
|
size = sizetab(troffmactab) + sizetab(ppmactab);
|
|
p1 = p2 = NULL;
|
|
if (msflag) {
|
|
switch (mac) {
|
|
case ME:
|
|
p1 = memactab;
|
|
break;
|
|
case MM:
|
|
p1 = msmactab;
|
|
p2 = mmmactab;
|
|
break;
|
|
case MS:
|
|
p1 = msmactab;
|
|
break;
|
|
case MA:
|
|
p1 = manmactab;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
size += sizetab(p1);
|
|
size += sizetab(p2);
|
|
back = calloc(size + 2, sizeof(struct mactab));
|
|
if (back == NULL)
|
|
err(1, NULL);
|
|
|
|
p = macfill(back, troffmactab);
|
|
p = macfill(p, ppmactab);
|
|
p = macfill(p, p1);
|
|
p = macfill(p, p2);
|
|
|
|
qsort(back, size, sizeof(struct mactab), macsort);
|
|
*r_size = size;
|
|
*r_back = back;
|
|
}
|
|
|
|
/*
|
|
* troff commands
|
|
*/
|
|
static const struct mactab troffmactab[] = {
|
|
M(NONE, '\\','"', skip), /* comment */
|
|
M(NOMAC, 'd','e', domacro), /* define */
|
|
M(NOMAC, 'i','g', domacro), /* ignore till .. */
|
|
M(NOMAC, 'a','m', domacro), /* append macro */
|
|
M(NBLK, 'n','f', nf), /* filled */
|
|
M(NBLK, 'c','e', ce), /* centered */
|
|
|
|
M(NONE, 's','o', so), /* source a file */
|
|
M(NONE, 'n','x', nx), /* go to next file */
|
|
|
|
M(NONE, 't','m', skip), /* print string on tty */
|
|
M(NONE, 'h','w', skip), /* exception hyphen words */
|
|
M(NONE, 0,0, 0)
|
|
};
|
|
|
|
/*
|
|
* Preprocessor output
|
|
*/
|
|
static const struct mactab ppmactab[] = {
|
|
M(FNEST, 'E','Q', EQ), /* equation starting */
|
|
M(FNEST, 'T','S', intbl), /* table starting */
|
|
M(FNEST, 'T','C', intbl), /* alternative table? */
|
|
M(FNEST, 'T','&', intbl), /* table reformatting */
|
|
M(NONE, 'T','E', outtbl),/* table ending */
|
|
M(NONE, 'P','S', PS), /* picture starting */
|
|
M(NONE, 0,0, 0)
|
|
};
|
|
|
|
/*
|
|
* Particular to ms and mm
|
|
*/
|
|
static const struct mactab msmactab[] = {
|
|
M(NONE, 'T','L', skiptocom), /* title follows */
|
|
M(NONE, 'F','S', skiptocom), /* start footnote */
|
|
M(NONE, 'O','K', skiptocom), /* Other kws */
|
|
|
|
M(NONE, 'N','R', skip), /* undocumented */
|
|
M(NONE, 'N','D', skip), /* use supplied date */
|
|
|
|
M(PARAG, 'P','P', PP), /* begin parag */
|
|
M(PARAG, 'I','P', PP), /* begin indent parag, tag x */
|
|
M(PARAG, 'L','P', PP), /* left blocked parag */
|
|
|
|
M(NONE, 'A','U', AU), /* author */
|
|
M(NONE, 'A','I', AU), /* authors institution */
|
|
|
|
M(NONE, 'S','H', SH), /* section heading */
|
|
M(NONE, 'S','N', SH), /* undocumented */
|
|
M(NONE, 'U','X', UX), /* unix */
|
|
|
|
M(NBLK, 'D','S', mssnblock), /* start display text */
|
|
M(NBLK, 'K','S', mssnblock), /* start keep */
|
|
M(NBLK, 'K','F', mssnblock), /* start float keep */
|
|
M(NONE, 0,0, 0)
|
|
};
|
|
|
|
static const struct mactab mmmactab[] = {
|
|
M(NONE, 'H',' ', MMHU), /* -mm ? */
|
|
M(NONE, 'H','U', MMHU), /* -mm ? */
|
|
M(PARAG, 'P',' ', PP), /* paragraph for -mm */
|
|
M(NBLK, 'N','S', mssnblock), /* undocumented */
|
|
M(NONE, 0,0, 0)
|
|
};
|
|
|
|
static const struct mactab memactab[] = {
|
|
M(PARAG, 'p','p', mepp),
|
|
M(PARAG, 'l','p', mepp),
|
|
M(PARAG, 'n','p', mepp),
|
|
M(NONE, 'i','p', meip),
|
|
|
|
M(NONE, 's','h', mesh),
|
|
M(NONE, 'u','h', mesh),
|
|
|
|
M(NBLK, '(','l', mesnblock),
|
|
M(NBLK, '(','q', mesnblock),
|
|
M(NBLK, '(','b', mesnblock),
|
|
M(NBLK, '(','z', mesnblock),
|
|
M(NBLK, '(','c', mesnblock),
|
|
|
|
M(NBLK, '(','d', mesnblock),
|
|
M(NBLK, '(','f', mesnblock),
|
|
M(NBLK, '(','x', mesnblock),
|
|
|
|
M(NONE, 'r',' ', mefont),
|
|
M(NONE, 'i',' ', mefont),
|
|
M(NONE, 'b',' ', mefont),
|
|
M(NONE, 'u',' ', mefont),
|
|
M(NONE, 'q',' ', mefont),
|
|
M(NONE, 'r','b', mefont),
|
|
M(NONE, 'b','i', mefont),
|
|
M(NONE, 'b','x', mefont),
|
|
M(NONE, 0,0, 0)
|
|
};
|
|
|
|
static const struct mactab manmactab[] = {
|
|
M(PARAG, 'B','I', manfont),
|
|
M(PARAG, 'B','R', manfont),
|
|
M(PARAG, 'I','B', manfont),
|
|
M(PARAG, 'I','R', manfont),
|
|
M(PARAG, 'R','B', manfont),
|
|
M(PARAG, 'R','I', manfont),
|
|
|
|
M(PARAG, 'P','P', manpp),
|
|
M(PARAG, 'L','P', manpp),
|
|
M(PARAG, 'H','P', manpp),
|
|
M(NONE, 0,0, 0)
|
|
};
|