715 lines
16 KiB
C
715 lines
16 KiB
C
/* $NetBSD: vfontedpr.c,v 1.7 1998/12/19 23:41:53 christos 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. 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 by the University of
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* California, Berkeley and its contributors.
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* 4. 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 1.7 1998/12/19 23:41:53 christos 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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strncpy (pstack[psptr], pname, PNAMELEN);
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pstack[psptr][PNAMELEN] = '\0';
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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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/* 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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/* 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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/* 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) {
|
||
putKcp (s, chrptr-1, TRUE);
|
||
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);
|
||
}
|
||
|