63242450c2
vgrind already worked properly in filter mode for source correctly enclosed inside .vS and .vE. The change more or less broke troff processing, since e.g. \fI became \\fI when it went through vgrind.
710 lines
16 KiB
C
710 lines
16 KiB
C
/* $NetBSD: vfontedpr.c,v 1.11 2003/08/18 15:28:17 pooka Exp $ */
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/*
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* Copyright (c) 1980, 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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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1980, 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 char sccsid[] = "@(#)vfontedpr.c 8.1 (Berkeley) 6/6/93";
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#endif
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__RCSID("$NetBSD: vfontedpr.c,v 1.11 2003/08/18 15:28:17 pooka Exp $");
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#endif /* not lint */
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <time.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include "pathnames.h"
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#include "extern.h"
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#define FALSE 0
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#define TRUE !(FALSE)
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#define NIL 0
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#define STANDARD 0
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#define ALTERNATE 1
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/*
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* Vfontedpr.
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*
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* Dave Presotto 1/12/81 (adapted from an earlier version by Bill Joy)
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*
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*/
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#define STRLEN 10 /* length of strings introducing things */
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#define PNAMELEN 40 /* length of a function/procedure name */
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#define PSMAX 20 /* size of procedure name stacking */
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static int iskw __P((char *));
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static boolean isproc __P((char *));
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static void putKcp __P((char *, char *, boolean));
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static void putScp __P((char *));
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static void putcp __P((int));
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static int tabs __P((char *, char *));
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static int width __P((char *, char *));
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/*
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* The state variables
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*/
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static boolean filter = FALSE; /* act as a filter (like eqn) */
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static boolean inchr; /* in a string constant */
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static boolean incomm; /* in a comment of the primary type */
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static boolean idx = FALSE; /* form an index */
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static boolean instr; /* in a string constant */
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static boolean nokeyw = FALSE; /* no keywords being flagged */
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static boolean pass = FALSE; /*
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* when acting as a filter, pass indicates
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* whether we are currently processing
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* input.
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*/
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static int blklevel; /* current nesting level */
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static int comtype; /* type of comment */
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static char *defsfile[2] = { _PATH_VGRINDEFS, 0 };
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/* name of language definitions file */
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static int margin;
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static int plstack[PSMAX]; /* the procedure nesting level stack */
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static char pname[BUFSIZ+1];
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static boolean prccont; /* continue last procedure */
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static int psptr; /* the stack index of the current procedure */
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static char pstack[PSMAX][PNAMELEN+1]; /* the procedure name stack */
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/*
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* The language specific globals
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*/
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char *l_acmbeg; /* string introducing a comment */
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char *l_acmend; /* string ending a comment */
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char *l_blkbeg; /* string begining of a block */
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char *l_blkend; /* string ending a block */
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char *l_chrbeg; /* delimiter for character constant */
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char *l_chrend; /* delimiter for character constant */
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char *l_combeg; /* string introducing a comment */
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char *l_comend; /* string ending a comment */
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char l_escape; /* character used to escape characters */
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char *l_keywds[BUFSIZ/2]; /* keyword table address */
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char *l_prcbeg; /* regular expr for procedure begin */
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char *l_strbeg; /* delimiter for string constant */
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char *l_strend; /* delimiter for string constant */
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boolean l_toplex; /* procedures only defined at top lex level */
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char *language = "c"; /* the language indicator */
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int main __P((int, char **));
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#define ps(x) printf("%s", x)
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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char *fname = "";
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struct stat stbuf;
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char buf[BUFSIZ];
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char *defs;
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int needbp = 0;
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argc--, argv++;
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do {
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char *cp;
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int i;
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if (argc > 0) {
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if (!strcmp(argv[0], "-h")) {
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if (argc == 1) {
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printf("'ds =H\n");
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argc = 0;
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goto rest;
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}
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printf("'ds =H %s\n", argv[1]);
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argc--, argv++;
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argc--, argv++;
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if (argc > 0)
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continue;
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goto rest;
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}
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/* act as a filter like eqn */
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if (!strcmp(argv[0], "-f")) {
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filter++;
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argv[0] = argv[argc-1];
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argv[argc-1] = "-";
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continue;
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}
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/* take input from the standard place */
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if (!strcmp(argv[0], "-")) {
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argc = 0;
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goto rest;
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}
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/* build an index */
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if (!strcmp(argv[0], "-x")) {
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idx++;
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argv[0] = "-n";
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}
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/* indicate no keywords */
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if (!strcmp(argv[0], "-n")) {
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nokeyw++;
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argc--, argv++;
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continue;
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}
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/* specify the font size */
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if (!strncmp(argv[0], "-s", 2)) {
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i = 0;
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cp = argv[0] + 2;
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while (*cp)
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i = i * 10 + (*cp++ - '0');
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printf("'ps %d\n'vs %d\n", i, i+1);
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argc--, argv++;
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continue;
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}
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/* specify the language */
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if (!strncmp(argv[0], "-l", 2)) {
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language = argv[0]+2;
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argc--, argv++;
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continue;
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}
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/* specify the language description file */
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if (!strncmp(argv[0], "-d", 2)) {
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defsfile[0] = argv[1];
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argc--, argv++;
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argc--, argv++;
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continue;
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}
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/* open the file for input */
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if (freopen(argv[0], "r", stdin) == NULL) {
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perror(argv[0]);
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exit(1);
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}
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if (idx)
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printf("'ta 4i 4.25i 5.5iR\n'in .5i\n");
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fname = argv[0];
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argc--, argv++;
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}
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rest:
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/*
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* get the language definition from the defs file
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*/
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i = cgetent(&defs, defsfile, language);
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if (i == -1) {
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fprintf (stderr, "no entry for language %s\n", language);
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exit(0);
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} else if (i == -2) { fprintf(stderr,
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"cannot find vgrindefs file %s\n", defsfile[0]);
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exit(0);
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} else if (i == -3) { fprintf(stderr,
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"potential reference loop detected in vgrindefs file %s\n",
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defsfile[0]);
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exit(0);
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}
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if (cgetustr(defs, "kw", &cp) == -1)
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nokeyw = TRUE;
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else {
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char **cpp;
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cpp = l_keywds;
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while (*cp) {
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while (*cp == ' ' || *cp =='\t')
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*cp++ = '\0';
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if (*cp)
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*cpp++ = cp;
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while (*cp != ' ' && *cp != '\t' && *cp)
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cp++;
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}
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*cpp = NIL;
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}
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cgetustr(defs, "pb", &cp);
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l_prcbeg = convexp(cp);
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cgetustr(defs, "cb", &cp);
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l_combeg = convexp(cp);
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cgetustr(defs, "ce", &cp);
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l_comend = convexp(cp);
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cgetustr(defs, "ab", &cp);
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l_acmbeg = convexp(cp);
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cgetustr(defs, "ae", &cp);
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l_acmend = convexp(cp);
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cgetustr(defs, "sb", &cp);
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l_strbeg = convexp(cp);
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cgetustr(defs, "se", &cp);
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l_strend = convexp(cp);
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cgetustr(defs, "bb", &cp);
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l_blkbeg = convexp(cp);
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cgetustr(defs, "be", &cp);
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l_blkend = convexp(cp);
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cgetustr(defs, "lb", &cp);
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l_chrbeg = convexp(cp);
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cgetustr(defs, "le", &cp);
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l_chrend = convexp(cp);
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l_escape = '\\';
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l_onecase = (cgetcap(defs, "oc", ':') != NULL);
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l_toplex = (cgetcap(defs, "tl", ':') != NULL);
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/* initialize the program */
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incomm = FALSE;
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instr = FALSE;
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inchr = FALSE;
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x_escaped = FALSE;
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blklevel = 0;
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for (psptr=0; psptr<PSMAX; psptr++) {
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pstack[psptr][0] = '\0';
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plstack[psptr] = 0;
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}
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psptr = -1;
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ps("'-F\n");
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if (!filter) {
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printf(".ds =F %s\n", fname);
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ps("'wh 0 vH\n");
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ps("'wh -1i vF\n");
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}
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if (needbp) {
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needbp = 0;
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printf(".()\n");
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printf(".bp\n");
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}
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if (!filter) {
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fstat(fileno(stdin), &stbuf);
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cp = ctime(&stbuf.st_mtime);
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cp[16] = '\0';
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cp[24] = '\0';
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printf(".ds =M %s %s\n", cp+4, cp+20);
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}
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/*
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* MAIN LOOP!!!
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*/
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while (fgets(buf, sizeof buf, stdin) != NULL) {
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if (buf[0] == '\f') {
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printf(".bp\n");
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}
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if (buf[0] == '.') {
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printf("%s", buf);
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if (!strncmp (buf+1, "vS", 2))
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pass = TRUE;
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if (!strncmp (buf+1, "vE", 2))
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pass = FALSE;
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continue;
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}
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prccont = FALSE;
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if (!filter || pass)
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putScp(buf);
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else
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printf("%s", buf);
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if (prccont && (psptr >= 0)) {
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ps("'FC ");
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ps(pstack[psptr]);
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ps("\n");
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}
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#ifdef DEBUG
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printf ("com %o str %o chr %o ptr %d\n", incomm, instr, inchr, psptr);
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#endif
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margin = 0;
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}
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needbp = 1;
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} while (argc > 0);
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exit(0);
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}
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#define isidchr(c) (isalnum((unsigned char)(c)) || (c) == '_')
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static void
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putScp(os)
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char *os;
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{
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char *s = os; /* pointer to unmatched string */
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char dummy[BUFSIZ]; /* dummy to be used by expmatch */
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char *comptr; /* end of a comment delimiter */
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char *acmptr; /* end of a comment delimiter */
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char *strptr; /* end of a string delimiter */
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char *chrptr; /* end of a character const delimiter */
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char *blksptr; /* end of a lexical block start */
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char *blkeptr; /* end of a lexical block end */
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x_start = os; /* remember the start for expmatch */
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x_escaped = FALSE;
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if (nokeyw || incomm || instr)
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goto skip;
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if (isproc(s)) {
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ps("'FN ");
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ps(pname);
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ps("\n");
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if (psptr < PSMAX) {
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++psptr;
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strlcpy(pstack[psptr], pname, sizeof(pstack[psptr]));
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plstack[psptr] = blklevel;
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}
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}
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skip:
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do {
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/* check for string, comment, blockstart, etc */
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if (!incomm && !instr && !inchr) {
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blkeptr = expmatch(s, l_blkend, dummy);
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blksptr = expmatch(s, l_blkbeg, dummy);
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comptr = expmatch(s, l_combeg, dummy);
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acmptr = expmatch(s, l_acmbeg, dummy);
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strptr = expmatch(s, l_strbeg, dummy);
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chrptr = expmatch(s, l_chrbeg, dummy);
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/* start of a comment? */
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if (comptr != NIL)
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if ((comptr < strptr || strptr == NIL)
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&& (comptr < acmptr || acmptr == NIL)
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&& (comptr < chrptr || chrptr == NIL)
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&& (comptr < blksptr || blksptr == NIL)
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&& (comptr < blkeptr || blkeptr == NIL)) {
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putKcp(s, comptr-1, FALSE);
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s = comptr;
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incomm = TRUE;
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comtype = STANDARD;
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if (s != os)
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ps("\\c");
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ps("\\c\n'+C\n");
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continue;
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}
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/* start of a comment? */
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if (acmptr != NIL)
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if ((acmptr < strptr || strptr == NIL)
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&& (acmptr < chrptr || chrptr == NIL)
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&& (acmptr < blksptr || blksptr == NIL)
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&& (acmptr < blkeptr || blkeptr == NIL)) {
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putKcp(s, acmptr-1, FALSE);
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s = acmptr;
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incomm = TRUE;
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comtype = ALTERNATE;
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if (s != os)
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ps("\\c");
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ps("\\c\n'+C\n");
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continue;
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}
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/* start of a string? */
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if (strptr != NIL)
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if ((strptr < chrptr || chrptr == NIL)
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&& (strptr < blksptr || blksptr == NIL)
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&& (strptr < blkeptr || blkeptr == NIL)) {
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putKcp(s, strptr-1, FALSE);
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s = strptr;
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instr = TRUE;
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continue;
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}
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/* start of a character string? */
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if (chrptr != NIL)
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if ((chrptr < blksptr || blksptr == NIL)
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&& (chrptr < blkeptr || blkeptr == NIL)) {
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putKcp(s, chrptr-1, FALSE);
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s = chrptr;
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inchr = TRUE;
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continue;
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}
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/* end of a lexical block */
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if (blkeptr != NIL) {
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if (blkeptr < blksptr || blksptr == NIL) {
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putKcp(s, blkeptr - 1, FALSE);
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s = blkeptr;
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blklevel--;
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if (psptr >= 0 && plstack[psptr] >= blklevel) {
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/* end of current procedure */
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if (s != os)
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ps("\\c");
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ps("\\c\n'-F\n");
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blklevel = plstack[psptr];
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|
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/* see if we should print the last proc name */
|
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if (--psptr >= 0)
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prccont = TRUE;
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else
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psptr = -1;
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}
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continue;
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||
}
|
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}
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|
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/* start of a lexical block */
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if (blksptr != NIL) {
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putKcp(s, blksptr - 1, FALSE);
|
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s = blksptr;
|
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blklevel++;
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continue;
|
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}
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/* check for end of comment */
|
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} else if (incomm) {
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comptr = expmatch(s, l_comend, dummy);
|
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acmptr = expmatch(s, l_acmend, dummy);
|
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if (((comtype == STANDARD) && (comptr != NIL)) ||
|
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((comtype == ALTERNATE) && (acmptr != NIL))) {
|
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if (comtype == STANDARD) {
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putKcp(s, comptr-1, TRUE);
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s = comptr;
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} else {
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putKcp(s, acmptr-1, TRUE);
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s = acmptr;
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}
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incomm = FALSE;
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ps("\\c\n'-C\n");
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continue;
|
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} else {
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putKcp(s, s + strlen(s) -1, TRUE);
|
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s = s + strlen(s);
|
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continue;
|
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}
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/* check for end of string */
|
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} else if (instr) {
|
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if ((strptr = expmatch(s, l_strend, dummy)) != NIL) {
|
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putKcp(s, strptr-1, TRUE);
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s = strptr;
|
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instr = FALSE;
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continue;
|
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} else {
|
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putKcp(s, s+strlen(s)-1, TRUE);
|
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s = s + strlen(s);
|
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continue;
|
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}
|
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|
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/* check for end of character string */
|
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} else if (inchr) {
|
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if ((chrptr = expmatch(s, l_chrend, dummy)) != NIL) {
|
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putKcp(s, chrptr-1, TRUE);
|
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s = chrptr;
|
||
inchr = FALSE;
|
||
continue;
|
||
} else {
|
||
putKcp(s, s+strlen(s)-1, TRUE);
|
||
s = s + strlen(s);
|
||
continue;
|
||
}
|
||
}
|
||
|
||
/* print out the line */
|
||
putKcp(s, s + strlen(s) -1, FALSE);
|
||
s = s + strlen(s);
|
||
} while (*s);
|
||
}
|
||
|
||
static void
|
||
putKcp(start, end, force)
|
||
char *start; /* start of string to write */
|
||
char *end; /* end of string to write */
|
||
boolean force; /* true if we should force nokeyw */
|
||
{
|
||
int i;
|
||
int xfld = 0;
|
||
|
||
while (start <= end) {
|
||
if (idx) {
|
||
if (*start == ' ' || *start == '\t') {
|
||
if (xfld == 0)
|
||
printf("");
|
||
printf("\t");
|
||
xfld = 1;
|
||
while (*start == ' ' || *start == '\t')
|
||
start++;
|
||
continue;
|
||
}
|
||
}
|
||
|
||
/* take care of nice tab stops */
|
||
if (*start == '\t') {
|
||
while (*start == '\t')
|
||
start++;
|
||
i = tabs(x_start, start) - margin / 8;
|
||
printf("\\h'|%dn'", i * 10 + 1 - margin % 8);
|
||
continue;
|
||
}
|
||
|
||
if (!nokeyw && !force)
|
||
if ((*start == '#' || isidchr(*start))
|
||
&& (start == x_start || !isidchr(start[-1]))) {
|
||
i = iskw(start);
|
||
if (i > 0) {
|
||
ps("\\*(+K");
|
||
do
|
||
putcp(*start++);
|
||
while (--i > 0);
|
||
ps("\\*(-K");
|
||
continue;
|
||
}
|
||
}
|
||
|
||
putcp(*start++);
|
||
}
|
||
}
|
||
|
||
|
||
static int
|
||
tabs(s, os)
|
||
char *s, *os;
|
||
{
|
||
|
||
return (width(s, os) / 8);
|
||
}
|
||
|
||
static int
|
||
width(s, os)
|
||
char *s, *os;
|
||
{
|
||
int i = 0;
|
||
|
||
while (s < os) {
|
||
if (*s == '\t') {
|
||
i = (i + 8) &~ 7;
|
||
s++;
|
||
continue;
|
||
}
|
||
if (*s < ' ')
|
||
i += 2;
|
||
else
|
||
i++;
|
||
s++;
|
||
}
|
||
return (i);
|
||
}
|
||
|
||
static void
|
||
putcp(c)
|
||
int c;
|
||
{
|
||
|
||
switch(c) {
|
||
|
||
case 0:
|
||
break;
|
||
|
||
case '\f':
|
||
break;
|
||
|
||
case '{':
|
||
ps("\\*(+K{\\*(-K");
|
||
break;
|
||
|
||
case '}':
|
||
ps("\\*(+K}\\*(-K");
|
||
break;
|
||
|
||
case '\\':
|
||
ps("\\e");
|
||
break;
|
||
|
||
case '_':
|
||
ps("\\*_");
|
||
break;
|
||
|
||
case '-':
|
||
ps("\\*-");
|
||
break;
|
||
|
||
case '`':
|
||
ps("\\`");
|
||
break;
|
||
|
||
case '\'':
|
||
ps("\\'");
|
||
break;
|
||
|
||
case '.':
|
||
ps("\\&.");
|
||
break;
|
||
|
||
case '*':
|
||
ps("\\fI*\\fP");
|
||
break;
|
||
|
||
case '/':
|
||
ps("\\fI\\h'\\w' 'u-\\w'/'u'/\\fP");
|
||
break;
|
||
|
||
default:
|
||
if (c < 040)
|
||
putchar('^'), c |= '@';
|
||
case '\t':
|
||
case '\n':
|
||
putchar(c);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* look for a process beginning on this line
|
||
*/
|
||
static boolean
|
||
isproc(s)
|
||
char *s;
|
||
{
|
||
pname[0] = '\0';
|
||
if (!l_toplex || blklevel == 0)
|
||
if (expmatch(s, l_prcbeg, pname) != NIL) {
|
||
return (TRUE);
|
||
}
|
||
return (FALSE);
|
||
}
|
||
|
||
|
||
/* iskw - check to see if the next word is a keyword
|
||
*/
|
||
|
||
static int
|
||
iskw(s)
|
||
char *s;
|
||
{
|
||
char **ss = l_keywds;
|
||
int i = 1;
|
||
char *cp = s;
|
||
|
||
/*###705 [cc] warning: subscript has type `char'%%%*/
|
||
while (++cp, isidchr(*cp))
|
||
i++;
|
||
while ((cp = *ss++) != NULL)
|
||
/*###708 [cc] warning: subscript has type `char'%%%*/
|
||
if (!STRNCMP(s,cp,i) && !isidchr(cp[i]))
|
||
return (i);
|
||
return (0);
|
||
}
|
||
|