OpenBSD indent
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003e7a740c
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6
Makefile
Normal file
6
Makefile
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@ -0,0 +1,6 @@
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# $OpenBSD: Makefile,v 1.2 1996/06/26 05:34:27 deraadt Exp $
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PROG= indent
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SRCS= indent.c io.c lexi.c parse.c pr_comment.c args.c
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.include <bsd.prog.mk>
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97
README
Normal file
97
README
Normal file
@ -0,0 +1,97 @@
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This is the C indenter, it originally came from the University of Illinois
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via some distribution tape for PDP-11 Unix. It has subsequently been
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hacked upon by James Gosling @ CMU. It isn't very pretty, and really needs
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to be completely redone, but it is probably the nicest C pretty printer
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around.
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Further additions to provide "Kernel Normal Form" were contributed
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by the folks at Sun Microsystems.
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++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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> From mnetor!yunexus!oz@uunet.UU.NET Wed Mar 9 15:30:55 1988
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> Date: Tue, 8 Mar 88 18:36:25 EST
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> From: yunexus!oz@uunet.UU.NET (Ozan Yigit)
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> To: bostic@okeeffe.berkeley.edu
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> Cc: ccvaxa!willcox@uunet.UU.NET, jag@sun.com, rsalz@uunet.UU.NET
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> In-Reply-To: Keith Bostic's message of Tue, 16 Feb 88 16:09:06 PST
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> Subject: Re: Indent...
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Thank you for your response about indent. I was wrong in my original
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observation (or mis-observation :-). UCB did keep the Illinois
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copyright intact.
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The issue still is whether we can distribute indent, and if we can, which
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version. David Willcox (the author) states that:
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| Several people have asked me on what basis I claim that indent is in
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| the public domain. I knew I would be sorry I made that posting.
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|
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| Some history. Way back in 1976, the project I worked on at the
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| University of Illinois Center for Advanced Computation had a huge
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| battle about how to format C code. After about a week of fighting, I
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| got disgusted and wrote a program, which I called indent, to reformat C
|
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| code. It had a bunch of different options that would let you format
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| the output the way you liked. In particular, all of the different
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| formats being championed were supported.
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|
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| It was my first big C program. It was ugly. It wasn't designed, it
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| just sort of grew. But it pretty much worked, and it stopped most of
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| the fighting.
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|
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| As a matter of form, I included a University of Illinois Copyright
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| notice. However, my understanding was that, since the work was done
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| on an ARPA contract, it was in the public domain.
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|
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| Time passed. Some years later, indent showed up on one of the early
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| emacs distributions.
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|
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| Later still, someone from UC Berlekey called the UofI and asked if
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| indent was in the public domain. They wanted to include it in their
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| UNIX distributions, along with the emacs stuff. I was no longer at the
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| UofI, but Rob Kolstad, who was, asked me about it. I told him I didn't
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| care if they used it, and since then it has been on the BSD distributions.
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|
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| Somewhere along the way, several other unnamed people have had their
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| hands in it. It was converted to understand version 7 C. (The
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| original was version 6.) It was converted from its original filter
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| interface to its current "blow away the user's file" interface.
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| The $HOME/.indent.pro file parsing was added. Some more formatting
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| options were added.
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|
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| The source I have right now has two copyright notices. One is the
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| original from the UofI. One is from Berkeley.
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|
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| I am not a lawyer, and I certainly do not understand copyright law. As
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| far as I am concerned, the bulk of this program, everything covered by
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| the UofI copyright, is in the public domain, and worth every penny.
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| Berkeley's copyright probably should only cover their changes, and I
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| don't know their feelings about sending it out.
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In any case, there appears to be noone at UofI to clarify/and change
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that copyright, but I am confident (based on the statements of its
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author) that the code, as it stands with its copyright, is
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distributable, and will not cause any legal problems.
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Hence, the issue reduces to *which* one to distribute through
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comp.sources.unix. I would suggest that with the permission of you
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folks (given that you have parts copyrighted), we distribute the 4.3
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version of indent, which appears to be the most up-to-date version. I
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happen to have just about every known version of indent, including the
|
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very original submission from the author to a unix tape, later the
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G-Emacs version, any 4.n version, sun version and the Unipress
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version. I still think we should not have to "go-back-in-time" and
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re-do all the work you people have done.
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I hope to hear from you as to what you think about this. You may of
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course send 4.3 version to the moderator directly, or you can let me
|
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know of your permission, and I will send the sources, or you can let
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me know that 4.3 version is off-limits, in which case we would probably
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have to revert to an older version. One way or another, I hope to get
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a version of indent to comp.sources.unix.
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regards.. oz
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cc: ccvaxa!willcox
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sun.com!jar
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uunet!rsalz
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313
args.c
Normal file
313
args.c
Normal file
@ -0,0 +1,313 @@
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/* $OpenBSD: args.c,v 1.18 2014/05/20 01:25:23 guenther Exp $ */
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/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California.
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* Copyright (c) 1976 Board of Trustees of the University of Illinois.
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* Copyright (c) 1985 Sun Microsystems, Inc.
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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 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
|
||||
* SUCH DAMAGE.
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*/
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/*
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* Argument scanning and profile reading code. Default parameters are set
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* here as well.
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*/
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#include <stdio.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 <errno.h>
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#include "indent_globs.h"
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#include <err.h>
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/* profile types */
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#define PRO_SPECIAL 1 /* special case */
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#define PRO_BOOL 2 /* boolean */
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#define PRO_INT 3 /* integer */
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#define PRO_FONT 4 /* troff font */
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/* profile specials for booleans */
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#define ON 1 /* turn it on */
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#define OFF 0 /* turn it off */
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/* profile specials for specials */
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#define IGN 1 /* ignore it */
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#define CLI 2 /* case label indent (float) */
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#define STDIN 3 /* use stdin */
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#define KEY 4 /* type (keyword) */
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char *option_source = "?";
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/*
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* N.B.: because of the way the table here is scanned, options whose names are
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* substrings of other options must occur later; that is, with -lp vs -l, -lp
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* must be first. Also, while (most) booleans occur more than once, the last
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* default value is the one actually assigned.
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*/
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struct pro {
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char *p_name; /* name, eg -bl, -cli */
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int p_type; /* type (int, bool, special) */
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int p_default; /* the default value (if int) */
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int p_special; /* depends on type */
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int *p_obj; /* the associated variable */
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} pro[] = {
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{ "T", PRO_SPECIAL, 0, KEY, 0 },
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{"bacc", PRO_BOOL, false, ON,
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&blanklines_around_conditional_compilation },
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{"badp", PRO_BOOL, false, ON,
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&blanklines_after_declarations_at_proctop },
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{"bad", PRO_BOOL, false, ON, &blanklines_after_declarations },
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{"bap", PRO_BOOL, false, ON, &blanklines_after_procs },
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{"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments },
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{"bc", PRO_BOOL, true, OFF, &ps.leave_comma },
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{"bl", PRO_BOOL, true, OFF, &btype_2 },
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{"br", PRO_BOOL, true, ON, &btype_2 },
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{"bs", PRO_BOOL, false, ON, &Bill_Shannon },
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{"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline },
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{"cd", PRO_INT, 0, 0, &ps.decl_com_ind },
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{"ce", PRO_BOOL, true, ON, &cuddle_else },
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{"ci", PRO_INT, 0, 0, &continuation_indent },
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{"cli", PRO_SPECIAL, 0, CLI, 0 },
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{"c", PRO_INT, 33, 0, &ps.com_ind },
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{"di", PRO_INT, 16, 0, &ps.decl_indent },
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{"dj", PRO_BOOL, false, ON, &ps.ljust_decl },
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{"d", PRO_INT, 0, 0, &ps.unindent_displace },
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{"eei", PRO_BOOL, false, ON, &extra_expression_indent },
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{"ei", PRO_BOOL, true, ON, &ps.else_if },
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{"fbc", PRO_FONT, 0, 0, (int *) &blkcomf },
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{"fbx", PRO_FONT, 0, 0, (int *) &boxcomf },
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{"fb", PRO_FONT, 0, 0, (int *) &bodyf },
|
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{"fc1", PRO_BOOL, true, ON, &format_col1_comments },
|
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{"fc", PRO_FONT, 0, 0, (int *) &scomf },
|
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{"fk", PRO_FONT, 0, 0, (int *) &keywordf },
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{"fs", PRO_FONT, 0, 0, (int *) &stringf },
|
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{"ip", PRO_BOOL, true, ON, &ps.indent_parameters },
|
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{"i", PRO_INT, 8, 0, &ps.ind_size },
|
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{"lc", PRO_INT, 0, 0, &block_comment_max_col },
|
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{"lp", PRO_BOOL, true, ON, &lineup_to_parens },
|
||||
{"l", PRO_INT, 78, 0, &max_col },
|
||||
{"nbacc", PRO_BOOL, false, OFF,
|
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&blanklines_around_conditional_compilation },
|
||||
{"nbadp", PRO_BOOL, false, OFF,
|
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&blanklines_after_declarations_at_proctop },
|
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{"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations },
|
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{"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs },
|
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{"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments },
|
||||
{"nbc", PRO_BOOL, true, ON, &ps.leave_comma },
|
||||
{"nbs", PRO_BOOL, false, OFF, &Bill_Shannon },
|
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{"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline },
|
||||
{"nce", PRO_BOOL, true, OFF, &cuddle_else },
|
||||
{"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl },
|
||||
{"neei", PRO_BOOL, false, OFF, &extra_expression_indent },
|
||||
{"nei", PRO_BOOL, true, OFF, &ps.else_if },
|
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{"nfc1", PRO_BOOL, true, OFF, &format_col1_comments },
|
||||
{"nip", PRO_BOOL, true, OFF, &ps.indent_parameters },
|
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{"nlp", PRO_BOOL, true, OFF, &lineup_to_parens },
|
||||
{"npcs", PRO_BOOL, false, OFF, &proc_calls_space },
|
||||
{"npro", PRO_SPECIAL, 0, IGN, 0 },
|
||||
{"npsl", PRO_BOOL, true, OFF, &procnames_start_line },
|
||||
{"nps", PRO_BOOL, false, OFF, &pointer_as_binop },
|
||||
{"nsc", PRO_BOOL, true, OFF, &star_comment_cont },
|
||||
{"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines },
|
||||
{"nut", PRO_BOOL, true, OFF, &use_tabs},
|
||||
{"nv", PRO_BOOL, false, OFF, &verbose },
|
||||
{"pcs", PRO_BOOL, false, ON, &proc_calls_space },
|
||||
{"psl", PRO_BOOL, true, ON, &procnames_start_line },
|
||||
{"ps", PRO_BOOL, false, ON, &pointer_as_binop },
|
||||
{"sc", PRO_BOOL, true, ON, &star_comment_cont },
|
||||
{"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines },
|
||||
{"st", PRO_SPECIAL, 0, STDIN, 0 },
|
||||
{"troff", PRO_BOOL, false, ON, &troff },
|
||||
{"ut", PRO_BOOL, true, ON, &use_tabs},
|
||||
{"v", PRO_BOOL, false, ON, &verbose },
|
||||
/* whew! */
|
||||
{ 0, 0, 0, 0, 0 }
|
||||
};
|
||||
|
||||
void scan_profile(FILE *);
|
||||
void set_option(char *);
|
||||
|
||||
/*
|
||||
* set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
|
||||
* given in these files.
|
||||
*/
|
||||
void
|
||||
set_profile(void)
|
||||
{
|
||||
FILE *f;
|
||||
char fname[BUFSIZ];
|
||||
char *home;
|
||||
static char prof[] = ".indent.pro";
|
||||
|
||||
home = getenv("HOME");
|
||||
if (home != NULL && *home != '\0') {
|
||||
if (snprintf(fname, sizeof fname, "%s/%s", home, prof) >= sizeof fname) {
|
||||
warnc(ENAMETOOLONG, "%s/%s", home, prof);
|
||||
return;
|
||||
}
|
||||
if ((f = fopen(option_source = fname, "r")) != NULL) {
|
||||
scan_profile(f);
|
||||
(void) fclose(f);
|
||||
}
|
||||
}
|
||||
if ((f = fopen(option_source = prof, "r")) != NULL) {
|
||||
scan_profile(f);
|
||||
(void) fclose(f);
|
||||
}
|
||||
option_source = "Command line";
|
||||
}
|
||||
|
||||
void
|
||||
scan_profile(FILE *f)
|
||||
{
|
||||
int i;
|
||||
char *p;
|
||||
char buf[BUFSIZ];
|
||||
|
||||
while (1) {
|
||||
for (p = buf;
|
||||
(i = getc(f)) != EOF && (*p = i) > ' ' && p + 1 - buf < BUFSIZ;
|
||||
++p)
|
||||
;
|
||||
if (p != buf) {
|
||||
*p = 0;
|
||||
if (verbose)
|
||||
printf("profile: %s\n", buf);
|
||||
set_option(buf);
|
||||
}
|
||||
else if (i == EOF)
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
char *param_start;
|
||||
|
||||
int
|
||||
eqin(char *s1, char *s2)
|
||||
{
|
||||
while (*s1) {
|
||||
if (*s1++ != *s2++)
|
||||
return (false);
|
||||
}
|
||||
param_start = s2;
|
||||
return (true);
|
||||
}
|
||||
|
||||
/*
|
||||
* Set the defaults.
|
||||
*/
|
||||
void
|
||||
set_defaults(void)
|
||||
{
|
||||
struct pro *p;
|
||||
|
||||
/*
|
||||
* Because ps.case_indent is a float, we can't initialize it from the
|
||||
* table:
|
||||
*/
|
||||
ps.case_indent = 0.0; /* -cli0.0 */
|
||||
for (p = pro; p->p_name; p++)
|
||||
if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT)
|
||||
*p->p_obj = p->p_default;
|
||||
}
|
||||
|
||||
void
|
||||
set_option(char *arg)
|
||||
{
|
||||
struct pro *p;
|
||||
|
||||
arg++; /* ignore leading "-" */
|
||||
for (p = pro; p->p_name; p++)
|
||||
if (*p->p_name == *arg && eqin(p->p_name, arg))
|
||||
goto found;
|
||||
errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1);
|
||||
found:
|
||||
switch (p->p_type) {
|
||||
|
||||
case PRO_SPECIAL:
|
||||
switch (p->p_special) {
|
||||
|
||||
case IGN:
|
||||
break;
|
||||
|
||||
case CLI:
|
||||
if (*param_start == 0)
|
||||
goto need_param;
|
||||
ps.case_indent = atof(param_start);
|
||||
break;
|
||||
|
||||
case STDIN:
|
||||
if (input == 0)
|
||||
input = stdin;
|
||||
if (output == 0)
|
||||
output = stdout;
|
||||
break;
|
||||
|
||||
case KEY:
|
||||
if (*param_start == 0)
|
||||
goto need_param;
|
||||
{
|
||||
char *str;
|
||||
if ((str = strdup(param_start)) == NULL)
|
||||
err(1, NULL);
|
||||
addkey(str, 4);
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
errx(1, "set_option: internal error: p_special %d", p->p_special);
|
||||
}
|
||||
break;
|
||||
|
||||
case PRO_BOOL:
|
||||
if (p->p_special == OFF)
|
||||
*p->p_obj = false;
|
||||
else
|
||||
*p->p_obj = true;
|
||||
break;
|
||||
|
||||
case PRO_INT:
|
||||
if (!isdigit((unsigned char)*param_start)) {
|
||||
need_param:
|
||||
errx(1, "%s: ``%s'' requires a parameter", option_source, arg - 1);
|
||||
}
|
||||
*p->p_obj = atoi(param_start);
|
||||
if (*p->p_name == 'i' && *p->p_obj <= 0)
|
||||
errx(1, "%s: ``%s must be greater of zero''",
|
||||
option_source, arg - 1);
|
||||
break;
|
||||
|
||||
case PRO_FONT:
|
||||
parsefont((struct fstate *) p->p_obj, param_start);
|
||||
break;
|
||||
|
||||
default:
|
||||
errx(1, "set_option: internal error: p_type %d", p->p_type);
|
||||
}
|
||||
}
|
||||
525
indent.1
Normal file
525
indent.1
Normal file
@ -0,0 +1,525 @@
|
||||
.\" $OpenBSD: indent.1,v 1.24 2022/03/31 17:27:25 naddy Exp $
|
||||
.\"
|
||||
.\" Copyright (c) 1980, 1990, 1993
|
||||
.\" The Regents of the University of California.
|
||||
.\" Copyright (c) 1985 Sun Microsystems, Inc.
|
||||
.\" Copyright (c) 1976 Board of Trustees of the University of Illinois.
|
||||
.\" All rights reserved.
|
||||
.\"
|
||||
.\" Redistribution and use in source and binary forms, with or without
|
||||
.\" modification, are permitted provided that the following conditions
|
||||
.\" are met:
|
||||
.\" 1. Redistributions of source code must retain the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer.
|
||||
.\" 2. Redistributions in binary form must reproduce the above copyright
|
||||
.\" notice, this list of conditions and the following disclaimer in the
|
||||
.\" documentation and/or other materials provided with the distribution.
|
||||
.\" 3. Neither the name of the University nor the names of its contributors
|
||||
.\" may be used to endorse or promote products derived from this software
|
||||
.\" without specific prior written permission.
|
||||
.\"
|
||||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
.\" SUCH DAMAGE.
|
||||
.\"
|
||||
.\" from: @(#)indent.1 8.1 (Berkeley) 7/1/93
|
||||
.\"
|
||||
.Dd $Mdocdate: March 31 2022 $
|
||||
.Dt INDENT 1
|
||||
.Os
|
||||
.Sh NAME
|
||||
.Nm indent
|
||||
.Nd indent and format C program source
|
||||
.Sh SYNOPSIS
|
||||
.Nm indent
|
||||
.Bk -words
|
||||
.Op Ar input-file Op Ar output-file
|
||||
.Op Fl bad | nbad
|
||||
.Op Fl bap | nbap
|
||||
.Op Fl bbb | nbbb
|
||||
.Op Fl \&bc | nbc
|
||||
.Op Fl \&bl | \&br
|
||||
.Op Fl c Ns Ar n
|
||||
.Op Fl \&cd Ns Ar n
|
||||
.Op Fl cdb | ncdb
|
||||
.Op Fl \&ce | nce
|
||||
.Op Fl \&ci Ns Ar n
|
||||
.Op Fl cli Ns Ar n
|
||||
.Op Fl d Ns Ar n
|
||||
.Op Fl \&di Ns Ar n
|
||||
.Op Fl \&dj | ndj
|
||||
.Op Fl \&ei | nei
|
||||
.Op Fl fc1 | nfc1
|
||||
.Op Fl i Ns Ar n
|
||||
.Op Fl \&ip | nip
|
||||
.Op Fl l Ns Ar n
|
||||
.Op Fl \&lc Ns Ar n
|
||||
.Op Fl \&lp | nlp
|
||||
.Op Fl npro
|
||||
.Op Fl pcs | npcs
|
||||
.Op Fl psl | npsl
|
||||
.Op Fl \&sc | nsc
|
||||
.Op Fl sob | nsob
|
||||
.Op Fl \&st
|
||||
.Op Fl T Ns Ar typename
|
||||
.Op Fl troff
|
||||
.Op Fl ut | nut
|
||||
.Op Fl v | \&nv
|
||||
.Ek
|
||||
.Sh DESCRIPTION
|
||||
.Nm
|
||||
is a
|
||||
.Ar C
|
||||
program formatter.
|
||||
It reformats the
|
||||
.Ar C
|
||||
program in the
|
||||
.Ar input-file
|
||||
according to the switches.
|
||||
The switches which can be specified are described below.
|
||||
They may appear before or after the file names.
|
||||
.Pp
|
||||
.Sy NOTE :
|
||||
If you only specify an
|
||||
.Ar input-file ,
|
||||
the formatting is
|
||||
done
|
||||
.Dq in-place ,
|
||||
that is, the formatted file is written back into
|
||||
.Ar input-file
|
||||
and a backup copy of
|
||||
.Ar input-file
|
||||
is written in the current directory.
|
||||
If
|
||||
.Ar input-file
|
||||
is named
|
||||
.Pa /blah/blah/file ,
|
||||
the backup file is named
|
||||
.Pa file.BAK .
|
||||
If
|
||||
.Pa file.BAK
|
||||
exists, it is overwritten.
|
||||
.Pp
|
||||
If
|
||||
.Ar output-file
|
||||
is specified,
|
||||
.Nm
|
||||
checks to make sure it is different from
|
||||
.Ar input-file .
|
||||
.Pp
|
||||
If no
|
||||
.Ar input-file
|
||||
is specified,
|
||||
input is read from stdin and the formatted file is written to stdout.
|
||||
.Pp
|
||||
The options listed below control the formatting style imposed by
|
||||
.Nm .
|
||||
.Bl -tag -width Op
|
||||
.It Fl bad , nbad
|
||||
If
|
||||
.Fl bad
|
||||
is specified, a blank line is forced after every block of
|
||||
declarations.
|
||||
Default:
|
||||
.Fl nbad .
|
||||
.It Fl bap , nbap
|
||||
If
|
||||
.Fl bap
|
||||
is specified, a blank line is forced after every procedure body.
|
||||
Default:
|
||||
.Fl nbap .
|
||||
.Sy Note :
|
||||
This option currently has no effect.
|
||||
.It Fl bbb , nbbb
|
||||
If
|
||||
.Fl bbb
|
||||
is specified, a blank line is forced before every block comment.
|
||||
Default:
|
||||
.Fl nbbb .
|
||||
.It Fl \&bc , nbc
|
||||
If
|
||||
.Fl \&bc
|
||||
is specified, then a newline is forced after each comma in a declaration.
|
||||
.Fl nbc
|
||||
turns off this option.
|
||||
The default is
|
||||
.Fl nbc .
|
||||
.It Fl \&bl , \&br
|
||||
Specifying
|
||||
.Fl \&bl
|
||||
lines up compound statements like this:
|
||||
.Bd -literal -offset indent
|
||||
if (...)
|
||||
{
|
||||
code
|
||||
}
|
||||
.Ed
|
||||
.Pp
|
||||
Specifying
|
||||
.Fl \&br
|
||||
(the default) makes them look like this:
|
||||
.Bd -literal -offset indent
|
||||
if (...) {
|
||||
code
|
||||
}
|
||||
.Ed
|
||||
.It Fl c Ns Ar n
|
||||
The column in which comments on code start.
|
||||
The default is 33.
|
||||
.It Fl cd Ns Ar n
|
||||
The column in which comments on declarations start.
|
||||
The default
|
||||
is for these comments to start in the same column as those on code.
|
||||
.It Fl cdb , ncdb
|
||||
Enables (disables) the placement of comment delimiters on blank lines.
|
||||
With this option enabled, comments look like this:
|
||||
.Bd -literal -offset indent
|
||||
/*
|
||||
* this is a comment
|
||||
*/
|
||||
.Ed
|
||||
.Pp
|
||||
Rather than like this:
|
||||
.Bd -literal -offset indent
|
||||
/* this is a comment */
|
||||
.Ed
|
||||
.Pp
|
||||
This only affects block comments, not comments to the right of
|
||||
code.
|
||||
The default is
|
||||
.Fl cdb .
|
||||
.It Fl ce , nce
|
||||
Enables (disables) forcing
|
||||
.Do Li else Dc Ns s
|
||||
to cuddle up to the immediately preceding
|
||||
.Ql } .
|
||||
The default is
|
||||
.Fl \&ce .
|
||||
.It Fl \&ci Ns Ar n
|
||||
Sets the continuation indent to be
|
||||
.Ar n .
|
||||
Continuation
|
||||
lines will be indented that far from the beginning of the first line of the
|
||||
statement.
|
||||
Parenthesized expressions have extra indentation added to
|
||||
indicate the nesting, unless
|
||||
.Fl \&lp
|
||||
is in effect.
|
||||
.Fl \&ci
|
||||
defaults to the same value as
|
||||
.Fl i .
|
||||
.It Fl cli Ns Ar n
|
||||
Causes case labels to be indented
|
||||
.Ar n
|
||||
tab stops to the right of the containing
|
||||
.Ic switch
|
||||
statement.
|
||||
.Fl cli0.5
|
||||
causes case labels to be indented half a tab stop.
|
||||
The default is
|
||||
.Fl cli0 .
|
||||
.It Fl d Ns Ar n
|
||||
Controls the placement of comments which are not to the
|
||||
right of code.
|
||||
Specifying
|
||||
.Fl d1
|
||||
means that such comments are placed one indentation level to the
|
||||
left of code.
|
||||
The default,
|
||||
.Fl d0 ,
|
||||
lines up these comments with the code.
|
||||
See the section on comment indentation below.
|
||||
.It Fl \&di Ns Ar n
|
||||
Specifies the indentation, in character positions, from a declaration keyword
|
||||
to the following identifier.
|
||||
The default is
|
||||
.Fl di16 .
|
||||
.It Fl dj , ndj
|
||||
.Fl \&dj
|
||||
left justifies declarations.
|
||||
.Fl ndj
|
||||
indents declarations the same as code.
|
||||
The default is
|
||||
.Fl ndj .
|
||||
.It Fl \&ei , nei
|
||||
Enables (disables) special
|
||||
.Ic else-if
|
||||
processing.
|
||||
If it's enabled, an
|
||||
.Ic if
|
||||
following an
|
||||
.Ic else
|
||||
will have the same indentation as the preceding
|
||||
.Ic \&if
|
||||
statement.
|
||||
The default is
|
||||
.Fl ei .
|
||||
.It Fl fc1 , nfc1
|
||||
Enables (disables) the formatting of comments that start in column 1.
|
||||
Often, comments whose leading
|
||||
.Ql /
|
||||
is in column 1 have been carefully formatted by the programmer.
|
||||
In such cases,
|
||||
.Fl nfc1
|
||||
should be
|
||||
used.
|
||||
The default is
|
||||
.Fl fc1 .
|
||||
.It Fl i Ns Ar n
|
||||
The number of spaces for one indentation level.
|
||||
The default is 8.
|
||||
.It Fl \&ip , nip
|
||||
Enables (disables) the indentation of parameter declarations from the left
|
||||
margin.
|
||||
The default is
|
||||
.Fl \&ip .
|
||||
.Sy Note :
|
||||
This option currently has no effect.
|
||||
.It Fl l Ns Ar n
|
||||
Maximum length of an output line.
|
||||
The default is 75.
|
||||
.Sy Note :
|
||||
This option currently has no effect.
|
||||
.It Fl \&lc Ns Ar n
|
||||
Specify a column width for comments.
|
||||
.It Fl \&lp , nlp
|
||||
Lines up code surrounded by parentheses in continuation lines.
|
||||
If a line has a left parenthesis which is not closed on that line,
|
||||
then continuation lines will be lined up to start at the character position
|
||||
just after the left parenthesis.
|
||||
For example, here is how a piece of continued code looks with
|
||||
.Fl nlp
|
||||
in effect:
|
||||
.Bd -literal -offset indent
|
||||
p1 = first_procedure(second_procedure(p2, p3),
|
||||
third_procedure(p4,p5));
|
||||
.Ed
|
||||
.Pp
|
||||
With
|
||||
.Fl lp
|
||||
in effect (the default) the code looks somewhat clearer:
|
||||
.Bd -literal -offset indent
|
||||
p1 = first_procedure(second_procedure(p2, p3),
|
||||
third_procedure(p4,p5));
|
||||
.Ed
|
||||
.Pp
|
||||
Inserting two more newlines we get:
|
||||
.Bd -literal -offset indent
|
||||
p1 = first_procedure(second_procedure(p2,
|
||||
p3),
|
||||
third_procedure(p4,
|
||||
p5));
|
||||
.Ed
|
||||
.Pp
|
||||
The default is
|
||||
.Fl lp .
|
||||
.It Fl npro
|
||||
Causes the profile files,
|
||||
.Pa ./.indent.pro
|
||||
and
|
||||
.Pa ~/.indent.pro ,
|
||||
to be ignored.
|
||||
.It Fl pcs , npcs
|
||||
If true
|
||||
.Pq Fl pcs ,
|
||||
all procedure calls will have a space inserted between
|
||||
the name and the
|
||||
.Ql \&( .
|
||||
The default is
|
||||
.Fl npcs .
|
||||
.It Fl psl , npsl
|
||||
If true
|
||||
.Pq Fl psl ,
|
||||
the names of procedures being defined are placed in
|
||||
column 1 \- their types, if any, will be left on the previous lines.
|
||||
The default is
|
||||
.Fl psl .
|
||||
.It Fl \&sc , nsc
|
||||
Enables (disables) the placement of asterisks
|
||||
.Pq Ql *
|
||||
at the left edge of all comments.
|
||||
The default is
|
||||
.Fl sc .
|
||||
.It Fl sob , nsob
|
||||
If
|
||||
.Fl sob
|
||||
is specified, indent will swallow optional blank lines.
|
||||
You can use this to get rid of blank lines after declarations.
|
||||
Default:
|
||||
.Fl nsob .
|
||||
.Sy Note :
|
||||
This option currently has no effect.
|
||||
.It Fl \&st
|
||||
Causes
|
||||
.Nm
|
||||
to take its input from stdin, and put its output to stdout.
|
||||
.It Fl T Ns Ar typename
|
||||
Adds
|
||||
.Ar typename
|
||||
to the list of type keywords.
|
||||
Names accumulate:
|
||||
.Fl T
|
||||
can be specified more than once.
|
||||
You need to specify all the typenames that
|
||||
appear in your program that are defined by
|
||||
.Ic typedef
|
||||
\- nothing will be
|
||||
harmed if you miss a few, but the program won't be formatted as nicely as
|
||||
it should.
|
||||
This sounds like a painful thing to have to do, but it's really
|
||||
a symptom of a problem in C:
|
||||
.Ic typedef
|
||||
causes a syntactic change in the
|
||||
language and
|
||||
.Nm
|
||||
can't find all
|
||||
instances of
|
||||
.Ic typedef .
|
||||
.It Fl troff
|
||||
Causes
|
||||
.Nm
|
||||
to format the program for processing by troff,
|
||||
producing a fancy listing.
|
||||
If the output file is not specified, the default is standard output,
|
||||
rather than formatting in place.
|
||||
.It Fl ut , nut
|
||||
Enables (disables) the use of tab characters in the output.
|
||||
Tabs are assumed to be aligned on columns divisible by 8.
|
||||
The default is
|
||||
.Fl ut .
|
||||
.It Fl v , \&nv
|
||||
.Fl v
|
||||
turns on
|
||||
.Dq verbose
|
||||
mode;
|
||||
.Fl \&nv
|
||||
turns it off.
|
||||
When in verbose mode,
|
||||
.Nm
|
||||
reports when it splits one line of input into two or more lines of output,
|
||||
and gives some size statistics at completion.
|
||||
The default is
|
||||
.Fl \&nv .
|
||||
.El
|
||||
.Pp
|
||||
You may set up your own
|
||||
.Dq profile
|
||||
of defaults to
|
||||
.Nm
|
||||
by creating a file called
|
||||
.Pa .indent.pro
|
||||
in your login directory and/or the current directory and including
|
||||
whatever switches you like.
|
||||
An
|
||||
.Pa .indent.pro
|
||||
file in the current directory takes
|
||||
precedence over the one in your login directory.
|
||||
If
|
||||
.Nm
|
||||
is run and a profile file exists, then it is read to set up the program's
|
||||
defaults.
|
||||
Switches on the command line, though, always override profile
|
||||
switches.
|
||||
The switches should be separated by spaces, tabs or newlines.
|
||||
.Ss Comments
|
||||
.Sq Em Box
|
||||
.Em comments .
|
||||
.Nm
|
||||
assumes that any comment with a dash, star, or newline immediately after
|
||||
the start of comment (that is,
|
||||
.Ql /*\- ,
|
||||
.Ql /** ,
|
||||
or
|
||||
.Ql /*
|
||||
followed immediately by a newline character) is a comment surrounded
|
||||
by a box of stars.
|
||||
Each line of such a comment is left unchanged, except
|
||||
that its indentation may be adjusted to account for the change in indentation
|
||||
of the first line
|
||||
of the comment.
|
||||
.Pp
|
||||
.Em Straight text .
|
||||
All other comments are treated as straight text.
|
||||
.Nm
|
||||
fits as many words (separated by blanks, tabs, or newlines) on a
|
||||
line as possible.
|
||||
Blank lines break paragraphs.
|
||||
.Ss Comment indentation
|
||||
If a comment is on a line with code it is started in the
|
||||
.Dq comment column ,
|
||||
which is set by the
|
||||
.Fl c Ns Ar n
|
||||
command line parameter.
|
||||
Otherwise, the comment is started at
|
||||
.Ar n
|
||||
indentation levels less than where code is currently being placed, where
|
||||
.Ar n
|
||||
is specified by the
|
||||
.Fl d Ns Ar n
|
||||
command line parameter.
|
||||
If the code on a line extends past the comment
|
||||
column, the comment starts further to the right, and the right margin may be
|
||||
automatically extended in extreme cases.
|
||||
.Ss Preprocessor lines
|
||||
In general,
|
||||
.Nm
|
||||
leaves preprocessor lines alone.
|
||||
The only
|
||||
reformatting that it will do is to straighten up trailing comments.
|
||||
It leaves embedded comments alone.
|
||||
Conditional compilation
|
||||
.Pq Ic #ifdef...#endif
|
||||
is recognized and
|
||||
.Nm
|
||||
attempts to correctly
|
||||
compensate for the syntactic peculiarities introduced.
|
||||
.Ss C syntax
|
||||
.Nm
|
||||
understands a substantial amount about the syntax of C, but it
|
||||
has a
|
||||
.Dq forgiving
|
||||
parser.
|
||||
It attempts to cope with the usual sorts of
|
||||
incomplete and misformed syntax.
|
||||
In particular, the use of macros like:
|
||||
.Pp
|
||||
.Dl #define forever for(;;)
|
||||
.Pp
|
||||
is handled properly.
|
||||
.Sh ENVIRONMENT
|
||||
.Bl -tag -width Ds
|
||||
.It Ev HOME
|
||||
Used to locate the full path to
|
||||
.Pa ~/.indent.pro .
|
||||
.El
|
||||
.Sh FILES
|
||||
.Bl -tag -width "./.indent.pro" -compact
|
||||
.It Pa ./.indent.pro
|
||||
profile file
|
||||
.It Pa ~/.indent.pro
|
||||
profile file
|
||||
.El
|
||||
.Sh HISTORY
|
||||
The
|
||||
.Nm
|
||||
command appeared in
|
||||
.Bx 4.2 .
|
||||
.Sh BUGS
|
||||
.Nm
|
||||
has even more switches than
|
||||
.Xr ls 1 .
|
||||
.Pp
|
||||
A common mistake is to try to indent all the C programs
|
||||
in a directory by typing:
|
||||
.Pp
|
||||
.Dl $ indent *.c
|
||||
.Pp
|
||||
This is probably a bug, not a feature.
|
||||
67
indent_codes.h
Normal file
67
indent_codes.h
Normal file
@ -0,0 +1,67 @@
|
||||
/* $OpenBSD: indent_codes.h,v 1.5 2015/01/19 15:30:52 krw Exp $ */
|
||||
/*
|
||||
* Copyright (c) 1985 Sun Microsystems, Inc.
|
||||
* Copyright (c) 1980, 1993
|
||||
* The Regents of the University of California.
|
||||
* Copyright (c) 1976 Board of Trustees of the University of Illinois.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)indent_codes.h 8.1 (Berkeley) 6/6/93
|
||||
*/
|
||||
|
||||
#define newline 1
|
||||
#define lparen 2
|
||||
#define rparen 3
|
||||
#define unary_op 4
|
||||
#define binary_op 5
|
||||
#define postop 6
|
||||
#define question 7
|
||||
#define casestmt 8
|
||||
#define colon 9
|
||||
#define semicolon 10
|
||||
#define lbrace 11
|
||||
#define rbrace 12
|
||||
#define ident 13
|
||||
#define comma 14
|
||||
#define comment 15
|
||||
#define swstmt 16
|
||||
#define preesc 17
|
||||
#define form_feed 18
|
||||
#define decl 19
|
||||
#define sp_paren 20
|
||||
#define sp_nparen 21
|
||||
#define ifstmt 22
|
||||
#define whilestmt 23
|
||||
#define forstmt 24
|
||||
#define stmt 25
|
||||
#define stmtl 26
|
||||
#define elselit 27
|
||||
#define dolit 28
|
||||
#define dohead 29
|
||||
#define ifhead 30
|
||||
#define elsehead 31
|
||||
#define period 32
|
||||
343
indent_globs.h
Normal file
343
indent_globs.h
Normal file
@ -0,0 +1,343 @@
|
||||
/* $OpenBSD: indent_globs.h,v 1.15 2021/01/26 18:21:25 deraadt Exp $ */
|
||||
/*
|
||||
* Copyright (c) 1985 Sun Microsystems, Inc.
|
||||
* Copyright (c) 1980, 1993
|
||||
* The Regents of the University of California.
|
||||
* Copyright (c) 1976 Board of Trustees of the University of Illinois.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)indent_globs.h 8.1 (Berkeley) 6/6/93
|
||||
*/
|
||||
|
||||
#define BACKSLASH '\\'
|
||||
#define bufsize 200 /* size of internal buffers */
|
||||
#define sc_size 5000 /* size of save_com buffer */
|
||||
#define label_offset 2 /* number of levels a label is placed to left
|
||||
* of code */
|
||||
|
||||
#define tabsize 8 /* the size of a tab */
|
||||
#define tabmask 0177770 /* mask used when figuring length of lines
|
||||
* with tabs */
|
||||
|
||||
|
||||
#define false 0
|
||||
#define true 1
|
||||
|
||||
|
||||
extern FILE *input; /* the fid for the input file */
|
||||
extern FILE *output; /* the output file */
|
||||
|
||||
#define CHECK_SIZE_CODE \
|
||||
if (e_code >= l_code) { \
|
||||
int nsize = l_code-s_code+400; \
|
||||
\
|
||||
codebuf = realloc(codebuf, nsize); \
|
||||
if (codebuf == NULL) \
|
||||
err(1, NULL); \
|
||||
e_code = codebuf + (e_code-s_code) + 1; \
|
||||
l_code = codebuf + nsize - 5; \
|
||||
s_code = codebuf + 1; \
|
||||
}
|
||||
#define CHECK_SIZE_COM \
|
||||
if (e_com >= l_com) { \
|
||||
int nsize = l_com-s_com+400; \
|
||||
\
|
||||
combuf = realloc(combuf, nsize); \
|
||||
if (combuf == NULL) \
|
||||
err(1, NULL); \
|
||||
e_com = combuf + (e_com-s_com) + 1; \
|
||||
l_com = combuf + nsize - 5; \
|
||||
s_com = combuf + 1; \
|
||||
}
|
||||
#define CHECK_SIZE_LAB \
|
||||
if (e_lab >= l_lab) { \
|
||||
int nsize = l_lab-s_lab+400; \
|
||||
\
|
||||
labbuf = realloc(labbuf, nsize); \
|
||||
if (labbuf == NULL) \
|
||||
err(1, NULL); \
|
||||
e_lab = labbuf + (e_lab-s_lab) + 1; \
|
||||
l_lab = labbuf + nsize - 5; \
|
||||
s_lab = labbuf + 1; \
|
||||
}
|
||||
#define CHECK_SIZE_TOKEN \
|
||||
if (e_token >= l_token) { \
|
||||
int nsize = l_token-s_token+400; \
|
||||
\
|
||||
tokenbuf = realloc(tokenbuf, nsize); \
|
||||
if (tokenbuf == NULL) \
|
||||
err(1, NULL); \
|
||||
e_token = tokenbuf + (e_token-s_token) + 1; \
|
||||
l_token = tokenbuf + nsize - 5; \
|
||||
s_token = tokenbuf + 1; \
|
||||
}
|
||||
|
||||
extern char *labbuf; /* buffer for label */
|
||||
extern char *s_lab; /* start ... */
|
||||
extern char *e_lab; /* .. and end of stored label */
|
||||
extern char *l_lab; /* limit of label buffer */
|
||||
|
||||
extern char *codebuf; /* buffer for code section */
|
||||
extern char *s_code; /* start ... */
|
||||
extern char *e_code; /* .. and end of stored code */
|
||||
extern char *l_code; /* limit of code section */
|
||||
|
||||
extern char *combuf; /* buffer for comments */
|
||||
extern char *s_com; /* start ... */
|
||||
extern char *e_com; /* ... and end of stored comments */
|
||||
extern char *l_com; /* limit of comment buffer */
|
||||
|
||||
#define token s_token
|
||||
extern char *tokenbuf; /* the last token scanned */
|
||||
extern char *s_token;
|
||||
extern char *e_token;
|
||||
extern char *l_token;
|
||||
|
||||
extern char *in_buffer; /* input buffer */
|
||||
extern char *in_buffer_limit; /* the end of the input buffer */
|
||||
extern char *buf_ptr; /* ptr to next character to be taken from
|
||||
* in_buffer */
|
||||
extern char *buf_end; /* ptr to first after last char in in_buffer */
|
||||
|
||||
extern char save_com[sc_size]; /* input text is saved here when looking for
|
||||
* the brace after an if, while, etc */
|
||||
extern char *sc_end; /* pointer into save_com buffer */
|
||||
|
||||
extern char *bp_save; /* saved value of buf_ptr when taking input
|
||||
* from save_com */
|
||||
extern char *be_save; /* similarly saved value of buf_end */
|
||||
|
||||
|
||||
extern int pointer_as_binop;
|
||||
extern int blanklines_after_declarations;
|
||||
extern int blanklines_before_blockcomments;
|
||||
extern int blanklines_after_procs;
|
||||
extern int blanklines_around_conditional_compilation;
|
||||
extern int swallow_optional_blanklines;
|
||||
extern int n_real_blanklines;
|
||||
extern int prefix_blankline_requested;
|
||||
extern int postfix_blankline_requested;
|
||||
extern int break_comma; /* when true and not in parens, break after a
|
||||
* comma */
|
||||
extern int btype_2; /* when true, brace should be on same line as
|
||||
* if, while, etc */
|
||||
extern float case_ind; /* indentation level to be used for a "case
|
||||
* n:" */
|
||||
extern int code_lines; /* count of lines with code */
|
||||
extern int had_eof; /* set to true when input is exhausted */
|
||||
extern int line_no; /* the current line number. */
|
||||
extern int max_col; /* the maximum allowable line length */
|
||||
extern int verbose; /* when true, non-essential error messages are
|
||||
* printed */
|
||||
extern int cuddle_else; /* true if else should cuddle up to '}' */
|
||||
extern int star_comment_cont; /* true iff comment continuation lines should
|
||||
* have stars at the beginning of each line. */
|
||||
extern int comment_delimiter_on_blankline;
|
||||
extern int troff; /* true iff were generating troff input */
|
||||
extern int procnames_start_line; /* if true, the names of procedures
|
||||
* being defined get placed in column
|
||||
* 1 (ie. a newline is placed between
|
||||
* the type of the procedure and its
|
||||
* name) */
|
||||
extern int proc_calls_space; /* If true, procedure calls look like:
|
||||
* foo(bar) rather than foo (bar) */
|
||||
extern int format_col1_comments; /* If comments which start in column 1
|
||||
* are to be magically reformatted
|
||||
* (just like comments that begin in
|
||||
* later columns) */
|
||||
extern int inhibit_formatting; /* true if INDENT OFF is in effect */
|
||||
extern int suppress_blanklines;/* set iff following blanklines should be
|
||||
* suppressed */
|
||||
extern int continuation_indent;/* set to the indentation between the edge of
|
||||
* code and continuation lines */
|
||||
extern int lineup_to_parens; /* if true, continued code within parens will
|
||||
* be lined up to the open paren */
|
||||
extern int Bill_Shannon; /* true iff a blank should always be inserted
|
||||
* after sizeof */
|
||||
extern int blanklines_after_declarations_at_proctop; /* This is vaguely
|
||||
* similar to
|
||||
* blanklines_after_decla
|
||||
* rations except that
|
||||
* it only applies to
|
||||
* the first set of
|
||||
* declarations in a
|
||||
* procedure (just after
|
||||
* the first '{') and it
|
||||
* causes a blank line
|
||||
* to be generated even
|
||||
* if there are no
|
||||
* declarations */
|
||||
extern int block_comment_max_col;
|
||||
extern int extra_expression_indent; /* True if continuation lines from the
|
||||
* expression part of "if(e)",
|
||||
* "while(e)", "for(e;e;e)" should be
|
||||
* indented an extra tab stop so that
|
||||
* they don't conflict with the code
|
||||
* that follows */
|
||||
extern int use_tabs; /* set true to use tabs for spacing,
|
||||
* false uses all spaces */
|
||||
|
||||
/* -troff font state information */
|
||||
|
||||
struct fstate {
|
||||
char font[4];
|
||||
char size;
|
||||
int allcaps:1;
|
||||
};
|
||||
|
||||
extern struct fstate
|
||||
keywordf, /* keyword font */
|
||||
stringf, /* string font */
|
||||
boxcomf, /* Box comment font */
|
||||
blkcomf, /* Block comment font */
|
||||
scomf, /* Same line comment font */
|
||||
bodyf; /* major body font */
|
||||
|
||||
|
||||
#define STACKSIZE 150
|
||||
|
||||
extern struct parser_state {
|
||||
int last_token;
|
||||
struct fstate cfont; /* Current font */
|
||||
int p_stack[STACKSIZE]; /* this is the parsers stack */
|
||||
int il[STACKSIZE]; /* this stack stores indentation levels */
|
||||
float cstk[STACKSIZE];/* used to store case stmt indentation levels */
|
||||
int box_com; /* set to true when we are in a "boxed"
|
||||
* comment. In that case, the first non-blank
|
||||
* char should be lined up with the / in rem */
|
||||
int comment_delta,
|
||||
n_comment_delta;
|
||||
int cast_mask; /* indicates which close parens close off
|
||||
* casts */
|
||||
int sizeof_mask; /* indicates which close parens close off
|
||||
* sizeof''s */
|
||||
int block_init; /* true iff inside a block initialization */
|
||||
int block_init_level; /* The level of brace nesting in an
|
||||
* initialization */
|
||||
int last_nl; /* this is true if the last thing scanned was
|
||||
* a newline */
|
||||
int in_or_st; /* Will be true iff there has been a
|
||||
* declarator (e.g. int or char) and no left
|
||||
* paren since the last semicolon. When true,
|
||||
* a '{' is starting a structure definition or
|
||||
* an initialization list */
|
||||
int bl_line; /* set to 1 by dump_line if the line is blank */
|
||||
int col_1; /* set to true if the last token started in
|
||||
* column 1 */
|
||||
int com_col; /* this is the column in which the current
|
||||
* coment should start */
|
||||
int com_ind; /* the column in which comments to the right
|
||||
* of code should start */
|
||||
int com_lines; /* the number of lines with comments, set by
|
||||
* dump_line */
|
||||
int dec_nest; /* current nesting level for structure or init */
|
||||
int decl_com_ind; /* the column in which comments after
|
||||
* declarations should be put */
|
||||
int decl_on_line; /* set to true if this line of code has part
|
||||
* of a declaration on it */
|
||||
int i_l_follow; /* the level to which ind_level should be set
|
||||
* after the current line is printed */
|
||||
int in_decl; /* set to true when we are in a declaration
|
||||
* stmt. The processing of braces is then
|
||||
* slightly different */
|
||||
int in_stmt; /* set to 1 while in a stmt */
|
||||
int ind_level; /* the current indentation level */
|
||||
int ind_size; /* the size of one indentation level */
|
||||
int ind_stmt; /* set to 1 if next line should have an extra
|
||||
* indentation level because we are in the
|
||||
* middle of a stmt */
|
||||
int last_u_d; /* set to true after scanning a token which
|
||||
* forces a following operator to be unary */
|
||||
int leave_comma; /* if true, never break declarations after
|
||||
* commas */
|
||||
int ljust_decl; /* true if declarations should be left
|
||||
* justified */
|
||||
int out_coms; /* the number of comments processed, set by
|
||||
* pr_comment */
|
||||
int out_lines; /* the number of lines written, set by
|
||||
* dump_line */
|
||||
int p_l_follow; /* used to remember how to indent following
|
||||
* statement */
|
||||
int paren_level; /* parenthesization level. used to indent
|
||||
* within stmts */
|
||||
short paren_indents[20]; /* column positions of each paren */
|
||||
int pcase; /* set to 1 if the current line label is a
|
||||
* case. It is printed differently from a
|
||||
* regular label */
|
||||
int search_brace; /* set to true by parse when it is necessary
|
||||
* to buffer up all info up to the start of a
|
||||
* stmt after an if, while, etc */
|
||||
int unindent_displace; /* comments not to the right of code
|
||||
* will be placed this many
|
||||
* indentation levels to the left of
|
||||
* code */
|
||||
int use_ff; /* set to one if the current line should be
|
||||
* terminated with a form feed */
|
||||
int want_blank; /* set to true when the following token should
|
||||
* be prefixed by a blank. (Said prefixing is
|
||||
* ignored in some cases.) */
|
||||
int else_if; /* True iff else if pairs should be handled
|
||||
* specially */
|
||||
int decl_indent; /* column to indent declared identifiers to */
|
||||
int its_a_keyword;
|
||||
int sizeof_keyword;
|
||||
int dumped_decl_indent;
|
||||
float case_indent; /* The distance to indent case labels from the
|
||||
* switch statement */
|
||||
int in_parameter_declaration;
|
||||
int indent_parameters;
|
||||
int tos; /* pointer to top of stack */
|
||||
char procname[100]; /* The name of the current procedure */
|
||||
int just_saw_decl;
|
||||
} ps;
|
||||
|
||||
extern int ifdef_level;
|
||||
extern int rparen_count;
|
||||
extern struct parser_state state_stack[5];
|
||||
extern struct parser_state match_state[5];
|
||||
|
||||
int compute_code_target(void);
|
||||
int compute_label_target(void);
|
||||
int count_spaces(int, char *);
|
||||
void diag(int, const char *, ...) __attribute__((__format__ (printf, 2, 3)));
|
||||
void dump_line(void);
|
||||
int eqin(char *, char *);
|
||||
void fill_buffer(void);
|
||||
int pad_output(int, int);
|
||||
void scan_profile(FILE *);
|
||||
void set_defaults(void);
|
||||
void set_option(char *);
|
||||
void addkey(char *, int);
|
||||
void set_profile(void);
|
||||
char *chfont(struct fstate *, struct fstate *, char *);
|
||||
void parsefont(struct fstate *, char *);
|
||||
void writefdef(struct fstate *, int);
|
||||
int lexi(void);
|
||||
void reduce(void);
|
||||
void parse(int);
|
||||
void pr_comment(void);
|
||||
void bakcopy(void);
|
||||
619
io.c
Normal file
619
io.c
Normal file
@ -0,0 +1,619 @@
|
||||
/* $OpenBSD: io.c,v 1.14 2015/09/27 17:00:46 guenther Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1985 Sun Microsystems, Inc.
|
||||
* Copyright (c) 1980, 1993 The Regents of the University of California.
|
||||
* Copyright (c) 1976 Board of Trustees of the University of Illinois.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <ctype.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <stdarg.h>
|
||||
#include <err.h>
|
||||
#include "indent_globs.h"
|
||||
|
||||
|
||||
int comment_open;
|
||||
static int paren_target;
|
||||
|
||||
void
|
||||
dump_line(void)
|
||||
{ /* dump_line is the routine that actually
|
||||
* effects the printing of the new source. It
|
||||
* prints the label section, followed by the
|
||||
* code section with the appropriate nesting
|
||||
* level, followed by any comments */
|
||||
int cur_col, target_col;
|
||||
static int not_first_line;
|
||||
|
||||
if (ps.procname[0]) {
|
||||
if (troff) {
|
||||
if (comment_open) {
|
||||
comment_open = 0;
|
||||
fprintf(output, ".*/\n");
|
||||
}
|
||||
fprintf(output, ".Pr \"%s\"\n", ps.procname);
|
||||
}
|
||||
ps.ind_level = 0;
|
||||
ps.procname[0] = 0;
|
||||
}
|
||||
if (s_code == e_code && s_lab == e_lab && s_com == e_com) {
|
||||
if (suppress_blanklines > 0)
|
||||
suppress_blanklines--;
|
||||
else {
|
||||
ps.bl_line = true;
|
||||
n_real_blanklines++;
|
||||
}
|
||||
}
|
||||
else if (!inhibit_formatting) {
|
||||
suppress_blanklines = 0;
|
||||
ps.bl_line = false;
|
||||
if (prefix_blankline_requested && not_first_line) {
|
||||
if (swallow_optional_blanklines) {
|
||||
if (n_real_blanklines == 1)
|
||||
n_real_blanklines = 0;
|
||||
} else {
|
||||
if (n_real_blanklines == 0)
|
||||
n_real_blanklines = 1;
|
||||
}
|
||||
}
|
||||
while (--n_real_blanklines >= 0)
|
||||
putc('\n', output);
|
||||
n_real_blanklines = 0;
|
||||
if (ps.ind_level == 0)
|
||||
ps.ind_stmt = 0; /* this is a class A kludge. dont do
|
||||
* additional statement indentation if we are
|
||||
* at bracket level 0 */
|
||||
|
||||
if (e_lab != s_lab || e_code != s_code)
|
||||
++code_lines; /* keep count of lines with code */
|
||||
|
||||
|
||||
if (e_lab != s_lab) { /* print lab, if any */
|
||||
if (comment_open) {
|
||||
comment_open = 0;
|
||||
fprintf(output, ".*/\n");
|
||||
}
|
||||
while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t'))
|
||||
e_lab--;
|
||||
cur_col = pad_output(1, compute_label_target());
|
||||
if (s_lab[0] == '#' && (strncmp(s_lab, "#else", 5) == 0
|
||||
|| strncmp(s_lab, "#endif", 6) == 0)) {
|
||||
char *s = s_lab;
|
||||
if (e_lab[-1] == '\n')
|
||||
e_lab--;
|
||||
do
|
||||
putc(*s++, output);
|
||||
while (s < e_lab && 'a' <= *s && *s<='z');
|
||||
while ((*s == ' ' || *s == '\t') && s < e_lab)
|
||||
s++;
|
||||
if (s < e_lab)
|
||||
fprintf(output, s[0]=='/' && s[1]=='*' ? "\t%.*s" : "\t/* %.*s */",
|
||||
(int)(e_lab - s), s);
|
||||
}
|
||||
else fprintf(output, "%.*s", (int)(e_lab - s_lab), s_lab);
|
||||
cur_col = count_spaces(cur_col, s_lab);
|
||||
}
|
||||
else
|
||||
cur_col = 1; /* there is no label section */
|
||||
|
||||
ps.pcase = false;
|
||||
|
||||
if (s_code != e_code) { /* print code section, if any */
|
||||
char *p;
|
||||
|
||||
if (comment_open) {
|
||||
comment_open = 0;
|
||||
fprintf(output, ".*/\n");
|
||||
}
|
||||
target_col = compute_code_target();
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < ps.p_l_follow; i++)
|
||||
if (ps.paren_indents[i] >= 0)
|
||||
ps.paren_indents[i] = -(ps.paren_indents[i] + target_col);
|
||||
}
|
||||
cur_col = pad_output(cur_col, target_col);
|
||||
for (p = s_code; p < e_code; p++)
|
||||
if (*p == (char) 0200)
|
||||
fprintf(output, "%d", target_col * 7);
|
||||
else
|
||||
putc(*p, output);
|
||||
cur_col = count_spaces(cur_col, s_code);
|
||||
}
|
||||
if (s_com != e_com) {
|
||||
if (troff) {
|
||||
int all_here = 0;
|
||||
char *p;
|
||||
|
||||
if (e_com[-1] == '/' && e_com[-2] == '*')
|
||||
e_com -= 2, all_here++;
|
||||
while (e_com > s_com && e_com[-1] == ' ')
|
||||
e_com--;
|
||||
*e_com = 0;
|
||||
p = s_com;
|
||||
while (*p == ' ')
|
||||
p++;
|
||||
if (p[0] == '/' && p[1] == '*')
|
||||
p += 2, all_here++;
|
||||
else if (p[0] == '*')
|
||||
p += p[1] == '/' ? 2 : 1;
|
||||
while (*p == ' ')
|
||||
p++;
|
||||
if (*p == 0)
|
||||
goto inhibit_newline;
|
||||
if (comment_open < 2 && ps.box_com) {
|
||||
comment_open = 0;
|
||||
fprintf(output, ".*/\n");
|
||||
}
|
||||
if (comment_open == 0) {
|
||||
if ('a' <= *p && *p <= 'z')
|
||||
*p = *p + 'A' - 'a';
|
||||
if (e_com - p < 50 && all_here == 2) {
|
||||
char *follow = p;
|
||||
fprintf(output, "\n.nr C! \\w\1");
|
||||
while (follow < e_com) {
|
||||
switch (*follow) {
|
||||
case '\n':
|
||||
putc(' ', output);
|
||||
case 1:
|
||||
break;
|
||||
case '\\':
|
||||
putc('\\', output);
|
||||
default:
|
||||
putc(*follow, output);
|
||||
}
|
||||
follow++;
|
||||
}
|
||||
putc(1, output);
|
||||
}
|
||||
fprintf(output, "\n./* %dp %d %dp\n",
|
||||
ps.com_col * 7,
|
||||
(s_code != e_code || s_lab != e_lab) - ps.box_com,
|
||||
target_col * 7);
|
||||
}
|
||||
comment_open = 1 + ps.box_com;
|
||||
while (*p) {
|
||||
if (*p == BACKSLASH)
|
||||
putc(BACKSLASH, output);
|
||||
putc(*p++, output);
|
||||
}
|
||||
} else { /* print comment, if any */
|
||||
int target = ps.com_col;
|
||||
char *com_st = s_com;
|
||||
|
||||
target += ps.comment_delta;
|
||||
while (*com_st == '\t')
|
||||
com_st++, target += 8; /* ? */
|
||||
while (target <= 0)
|
||||
if (*com_st == ' ')
|
||||
target++, com_st++;
|
||||
else if (*com_st == '\t')
|
||||
target = ((target - 1) & ~7) + 9, com_st++;
|
||||
else
|
||||
target = 1;
|
||||
if (cur_col > target) { /* if comment cant fit on this line,
|
||||
* put it on next line */
|
||||
putc('\n', output);
|
||||
cur_col = 1;
|
||||
++ps.out_lines;
|
||||
}
|
||||
while (e_com > com_st && isspace((unsigned char)e_com[-1]))
|
||||
e_com--;
|
||||
cur_col = pad_output(cur_col, target);
|
||||
if (!ps.box_com) {
|
||||
if (star_comment_cont && (com_st[1] != '*' || e_com <= com_st + 1)) {
|
||||
if (com_st[1] == ' ' && com_st[0] == ' ' && e_com > com_st + 1)
|
||||
com_st[1] = '*';
|
||||
else
|
||||
fwrite(" * ", com_st[0] == '\t' ? 2 : com_st[0] == '*' ? 1 : 3, 1, output);
|
||||
}
|
||||
}
|
||||
fwrite(com_st, e_com - com_st, 1, output);
|
||||
ps.comment_delta = ps.n_comment_delta;
|
||||
cur_col = count_spaces(cur_col, com_st);
|
||||
++ps.com_lines; /* count lines with comments */
|
||||
}
|
||||
}
|
||||
if (ps.use_ff)
|
||||
putc('\014', output);
|
||||
else
|
||||
putc('\n', output);
|
||||
inhibit_newline:
|
||||
++ps.out_lines;
|
||||
if (ps.just_saw_decl == 1 && blanklines_after_declarations) {
|
||||
prefix_blankline_requested = 1;
|
||||
ps.just_saw_decl = 0;
|
||||
}
|
||||
else
|
||||
prefix_blankline_requested = postfix_blankline_requested;
|
||||
postfix_blankline_requested = 0;
|
||||
}
|
||||
ps.decl_on_line = ps.in_decl; /* if we are in the middle of a
|
||||
* declaration, remember that fact for
|
||||
* proper comment indentation */
|
||||
ps.ind_stmt = ps.in_stmt & ~ps.in_decl; /* next line should be
|
||||
* indented if we have not
|
||||
* completed this stmt and if
|
||||
* we are not in the middle of
|
||||
* a declaration */
|
||||
ps.use_ff = false;
|
||||
ps.dumped_decl_indent = 0;
|
||||
*(e_lab = s_lab) = '\0'; /* reset buffers */
|
||||
*(e_code = s_code) = '\0';
|
||||
*(e_com = s_com) = '\0';
|
||||
ps.ind_level = ps.i_l_follow;
|
||||
ps.paren_level = ps.p_l_follow;
|
||||
paren_target = -ps.paren_indents[ps.paren_level - 1];
|
||||
not_first_line = 1;
|
||||
return;
|
||||
}
|
||||
|
||||
int
|
||||
compute_code_target(void)
|
||||
{
|
||||
int target_col;
|
||||
|
||||
target_col = ps.ind_size * ps.ind_level + 1;
|
||||
if (ps.paren_level)
|
||||
if (!lineup_to_parens)
|
||||
target_col += continuation_indent * ps.paren_level;
|
||||
else {
|
||||
int w;
|
||||
int t = paren_target;
|
||||
|
||||
if ((w = count_spaces(t, s_code) - max_col) > 0
|
||||
&& count_spaces(target_col, s_code) <= max_col) {
|
||||
t -= w + 1;
|
||||
if (t > target_col)
|
||||
target_col = t;
|
||||
}
|
||||
else
|
||||
target_col = t;
|
||||
}
|
||||
else if (ps.ind_stmt)
|
||||
target_col += continuation_indent;
|
||||
return target_col;
|
||||
}
|
||||
|
||||
int
|
||||
compute_label_target(void)
|
||||
{
|
||||
return
|
||||
ps.pcase ? (int) (case_ind * ps.ind_size) + 1
|
||||
: *s_lab == '#' ? 1
|
||||
: ps.ind_size * (ps.ind_level - label_offset) + 1;
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Copyright (C) 1976 by the Board of Trustees of the University of Illinois
|
||||
*
|
||||
* All rights reserved
|
||||
*
|
||||
*
|
||||
* NAME: fill_buffer
|
||||
*
|
||||
* FUNCTION: Reads one block of input into input_buffer
|
||||
*
|
||||
* HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A
|
||||
* Willcox of CAC Added check for switch back to partly full input
|
||||
* buffer from temporary buffer
|
||||
*
|
||||
*/
|
||||
void
|
||||
fill_buffer(void)
|
||||
{ /* this routine reads stuff from the input */
|
||||
char *p, *buf2;
|
||||
int i;
|
||||
FILE *f = input;
|
||||
|
||||
if (bp_save != 0) { /* there is a partly filled input buffer left */
|
||||
buf_ptr = bp_save; /* dont read anything, just switch buffers */
|
||||
buf_end = be_save;
|
||||
bp_save = be_save = 0;
|
||||
if (buf_ptr < buf_end)
|
||||
return; /* only return if there is really something in
|
||||
* this buffer */
|
||||
}
|
||||
for (p = in_buffer;;) {
|
||||
if (p >= in_buffer_limit) {
|
||||
int size = (in_buffer_limit - in_buffer) * 2 + 10;
|
||||
int offset = p - in_buffer;
|
||||
buf2 = realloc(in_buffer, size);
|
||||
if (buf2 == NULL)
|
||||
errx(1, "input line too long");
|
||||
in_buffer = buf2;
|
||||
p = in_buffer + offset;
|
||||
in_buffer_limit = in_buffer + size - 2;
|
||||
}
|
||||
if ((i = getc(f)) == EOF) {
|
||||
*p++ = ' ';
|
||||
*p++ = '\n';
|
||||
had_eof = true;
|
||||
break;
|
||||
}
|
||||
*p++ = i;
|
||||
if (i == '\n')
|
||||
break;
|
||||
}
|
||||
buf_ptr = in_buffer;
|
||||
buf_end = p;
|
||||
if (p - 3 >= in_buffer && p[-2] == '/' && p[-3] == '*') {
|
||||
if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0)
|
||||
fill_buffer(); /* flush indent error message */
|
||||
else {
|
||||
int com = 0;
|
||||
|
||||
p = in_buffer;
|
||||
while (*p == ' ' || *p == '\t')
|
||||
p++;
|
||||
if (*p == '/' && p[1] == '*') {
|
||||
p += 2;
|
||||
while (*p == ' ' || *p == '\t')
|
||||
p++;
|
||||
if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E'
|
||||
&& p[4] == 'N' && p[5] == 'T') {
|
||||
p += 6;
|
||||
while (*p == ' ' || *p == '\t')
|
||||
p++;
|
||||
if (*p == '*')
|
||||
com = 1;
|
||||
else if (*p == 'O') {
|
||||
if (*++p == 'N')
|
||||
p++, com = 1;
|
||||
else if (*p == 'F' && *++p == 'F')
|
||||
p++, com = 2;
|
||||
}
|
||||
while (*p == ' ' || *p == '\t')
|
||||
p++;
|
||||
if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) {
|
||||
if (s_com != e_com || s_lab != e_lab || s_code != e_code)
|
||||
dump_line();
|
||||
if (!(inhibit_formatting = com - 1)) {
|
||||
n_real_blanklines = 0;
|
||||
postfix_blankline_requested = 0;
|
||||
prefix_blankline_requested = 0;
|
||||
suppress_blanklines = 1;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if (inhibit_formatting) {
|
||||
p = in_buffer;
|
||||
do
|
||||
putc(*p, output);
|
||||
while (*p++ != '\n');
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
/*
|
||||
* Copyright (C) 1976 by the Board of Trustees of the University of Illinois
|
||||
*
|
||||
* All rights reserved
|
||||
*
|
||||
*
|
||||
* NAME: pad_output
|
||||
*
|
||||
* FUNCTION: Writes tabs and spaces to move the current column up to the desired
|
||||
* position.
|
||||
*
|
||||
* ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf.
|
||||
*
|
||||
* PARAMETERS: current integer The current column target
|
||||
* target integer The desired column
|
||||
*
|
||||
* RETURNS: Integer value of the new column. (If current >= target, no action is
|
||||
* taken, and current is returned.
|
||||
*
|
||||
* GLOBALS: None
|
||||
*
|
||||
* CALLS: write (sys)
|
||||
*
|
||||
* CALLED BY: dump_line
|
||||
*
|
||||
* HISTORY: initial coding November 1976 D A Willcox of CAC
|
||||
*
|
||||
*/
|
||||
int
|
||||
pad_output(int current, int target)
|
||||
{
|
||||
int curr; /* internal column pointer */
|
||||
int tcur;
|
||||
|
||||
if (troff)
|
||||
fprintf(output, "\\h'|%dp'", (target - 1) * 7);
|
||||
else {
|
||||
if (current >= target)
|
||||
return (current); /* line is already long enough */
|
||||
curr = current;
|
||||
if (use_tabs) {
|
||||
while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target) {
|
||||
putc('\t', output);
|
||||
curr = tcur;
|
||||
}
|
||||
}
|
||||
while (curr++ < target)
|
||||
putc(' ', output); /* pad with final blanks */
|
||||
}
|
||||
return (target);
|
||||
}
|
||||
|
||||
/*
|
||||
* Copyright (C) 1976 by the Board of Trustees of the University of Illinois
|
||||
*
|
||||
* All rights reserved
|
||||
*
|
||||
*
|
||||
* NAME: count_spaces
|
||||
*
|
||||
* FUNCTION: Find out where printing of a given string will leave the current
|
||||
* character position on output.
|
||||
*
|
||||
* ALGORITHM: Run thru input string and add appropriate values to current
|
||||
* position.
|
||||
*
|
||||
* RETURNS: Integer value of position after printing "buffer" starting in column
|
||||
* "current".
|
||||
*
|
||||
* HISTORY: initial coding November 1976 D A Willcox of CAC
|
||||
*
|
||||
*/
|
||||
int
|
||||
count_spaces(int current, char *buffer)
|
||||
{
|
||||
char *buf; /* used to look thru buffer */
|
||||
int cur; /* current character counter */
|
||||
|
||||
cur = current;
|
||||
|
||||
for (buf = buffer; *buf != '\0'; ++buf) {
|
||||
switch (*buf) {
|
||||
|
||||
case '\n':
|
||||
case 014: /* form feed */
|
||||
cur = 1;
|
||||
break;
|
||||
|
||||
case '\t':
|
||||
cur = ((cur - 1) & tabmask) + tabsize + 1;
|
||||
break;
|
||||
|
||||
case 010: /* backspace */
|
||||
--cur;
|
||||
break;
|
||||
|
||||
default:
|
||||
++cur;
|
||||
break;
|
||||
} /* end of switch */
|
||||
} /* end of for loop */
|
||||
return (cur);
|
||||
}
|
||||
|
||||
int found_err;
|
||||
|
||||
void
|
||||
diag(int level, const char *msg, ...)
|
||||
{
|
||||
va_list ap;
|
||||
|
||||
va_start(ap, msg);
|
||||
if (level)
|
||||
found_err = 1;
|
||||
if (output == stdout) {
|
||||
fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no);
|
||||
vfprintf(stdout, msg, ap);
|
||||
fprintf(stdout, " */\n");
|
||||
}
|
||||
else {
|
||||
fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no);
|
||||
vfprintf(stderr, msg, ap);
|
||||
fprintf(stderr, "\n");
|
||||
}
|
||||
va_end(ap);
|
||||
}
|
||||
|
||||
void
|
||||
writefdef(struct fstate *f, int nm)
|
||||
{
|
||||
fprintf(output, ".ds f%c %s\n.nr s%c %d\n",
|
||||
nm, f->font, nm, f->size);
|
||||
}
|
||||
|
||||
char *
|
||||
chfont(struct fstate *of, struct fstate *nf, char *s)
|
||||
{
|
||||
if (of->font[0] != nf->font[0]
|
||||
|| of->font[1] != nf->font[1]) {
|
||||
*s++ = '\\';
|
||||
*s++ = 'f';
|
||||
if (nf->font[1]) {
|
||||
*s++ = '(';
|
||||
*s++ = nf->font[0];
|
||||
*s++ = nf->font[1];
|
||||
}
|
||||
else
|
||||
*s++ = nf->font[0];
|
||||
}
|
||||
if (nf->size != of->size) {
|
||||
*s++ = '\\';
|
||||
*s++ = 's';
|
||||
if (nf->size < of->size) {
|
||||
*s++ = '-';
|
||||
*s++ = '0' + of->size - nf->size;
|
||||
}
|
||||
else {
|
||||
*s++ = '+';
|
||||
*s++ = '0' + nf->size - of->size;
|
||||
}
|
||||
}
|
||||
return s;
|
||||
}
|
||||
|
||||
void
|
||||
parsefont(struct fstate *f, char *s0)
|
||||
{
|
||||
char *s = s0;
|
||||
int sizedelta = 0;
|
||||
bzero(f, sizeof *f);
|
||||
while (*s) {
|
||||
if (isdigit((unsigned char)*s))
|
||||
f->size = f->size * 10 + *s - '0';
|
||||
else if (isupper((unsigned char)*s))
|
||||
if (f->font[0])
|
||||
f->font[1] = *s;
|
||||
else
|
||||
f->font[0] = *s;
|
||||
else if (*s == 'c')
|
||||
f->allcaps = 1;
|
||||
else if (*s == '+')
|
||||
sizedelta++;
|
||||
else if (*s == '-')
|
||||
sizedelta--;
|
||||
else
|
||||
errx(1, "bad font specification: %s", s0);
|
||||
s++;
|
||||
}
|
||||
if (f->font[0] == 0)
|
||||
f->font[0] = 'R';
|
||||
if (bodyf.size == 0)
|
||||
bodyf.size = 11;
|
||||
if (f->size == 0)
|
||||
f->size = bodyf.size + sizedelta;
|
||||
else if (sizedelta > 0)
|
||||
f->size += bodyf.size;
|
||||
else
|
||||
f->size = bodyf.size - f->size;
|
||||
}
|
||||
605
lexi.c
Normal file
605
lexi.c
Normal file
@ -0,0 +1,605 @@
|
||||
/* $OpenBSD: lexi.c,v 1.20 2016/06/06 06:43:03 tobiasu Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1980, 1993
|
||||
* The Regents of the University of California.
|
||||
* Copyright (c) 1976 Board of Trustees of the University of Illinois.
|
||||
* Copyright (c) 1985 Sun Microsystems, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Here we have the token scanner for indent. It scans off one token and puts
|
||||
* it in the global variable "token". It returns a code, indicating the type
|
||||
* of token scanned.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <ctype.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
#include <err.h>
|
||||
#include "indent_globs.h"
|
||||
#include "indent_codes.h"
|
||||
|
||||
#define alphanum 1
|
||||
#define opchar 3
|
||||
|
||||
struct templ {
|
||||
char *rwd;
|
||||
int rwcode;
|
||||
};
|
||||
|
||||
struct templ specialsinit[] = {
|
||||
{ "switch", 1 },
|
||||
{ "case", 2 },
|
||||
{ "break", 0 },
|
||||
{ "struct", 3 },
|
||||
{ "union", 3 },
|
||||
{ "enum", 3 },
|
||||
{ "default", 2 },
|
||||
{ "int", 4 },
|
||||
{ "char", 4 },
|
||||
{ "float", 4 },
|
||||
{ "double", 4 },
|
||||
{ "long", 4 },
|
||||
{ "short", 4 },
|
||||
{ "typedef", 4 },
|
||||
{ "unsigned", 4 },
|
||||
{ "register", 4 },
|
||||
{ "static", 4 },
|
||||
{ "global", 4 },
|
||||
{ "extern", 4 },
|
||||
{ "void", 4 },
|
||||
{ "goto", 0 },
|
||||
{ "return", 0 },
|
||||
{ "if", 5 },
|
||||
{ "while", 5 },
|
||||
{ "for", 5 },
|
||||
{ "else", 6 },
|
||||
{ "do", 6 },
|
||||
{ "sizeof", 7 },
|
||||
};
|
||||
|
||||
struct templ *specials = specialsinit;
|
||||
int nspecials = sizeof(specialsinit) / sizeof(specialsinit[0]);
|
||||
int maxspecials;
|
||||
|
||||
char chartype[128] =
|
||||
{ /* this is used to facilitate the decision of
|
||||
* what type (alphanumeric, operator) each
|
||||
* character is */
|
||||
0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 3, 0, 0, 1, 3, 3, 0,
|
||||
0, 0, 3, 3, 0, 3, 0, 3,
|
||||
1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 0, 0, 3, 3, 3, 3,
|
||||
0, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 0, 0, 0, 3, 1,
|
||||
0, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 0, 3, 0, 3, 0
|
||||
};
|
||||
|
||||
|
||||
|
||||
|
||||
int
|
||||
lexi(void)
|
||||
{
|
||||
int unary_delim; /* this is set to 1 if the current token
|
||||
* forces a following operator to be unary */
|
||||
static int last_code; /* the last token type returned */
|
||||
static int l_struct; /* set to 1 if the last token was 'struct' */
|
||||
int code; /* internal code to be returned */
|
||||
char qchar; /* the delimiter character for a string */
|
||||
int i;
|
||||
|
||||
e_token = s_token; /* point to start of place to save token */
|
||||
unary_delim = false;
|
||||
ps.col_1 = ps.last_nl; /* tell world that this token started in
|
||||
* column 1 iff the last thing scanned was nl */
|
||||
ps.last_nl = false;
|
||||
|
||||
while (*buf_ptr == ' ' || *buf_ptr == '\t') { /* get rid of blanks */
|
||||
ps.col_1 = false; /* leading blanks imply token is not in column
|
||||
* 1 */
|
||||
if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
}
|
||||
|
||||
/* Scan an alphanumeric token */
|
||||
if (chartype[(int)*buf_ptr] == alphanum ||
|
||||
(buf_ptr[0] == '.' && isdigit((unsigned char)buf_ptr[1]))) {
|
||||
/*
|
||||
* we have a character or number
|
||||
*/
|
||||
char *j; /* used for searching thru list of
|
||||
* reserved words */
|
||||
if (isdigit((unsigned char)*buf_ptr) ||
|
||||
(buf_ptr[0] == '.' && isdigit((unsigned char)buf_ptr[1]))) {
|
||||
int seendot = 0,
|
||||
seenexp = 0,
|
||||
seensfx = 0;
|
||||
if (*buf_ptr == '0' &&
|
||||
(buf_ptr[1] == 'x' || buf_ptr[1] == 'X')) {
|
||||
*e_token++ = *buf_ptr++;
|
||||
*e_token++ = *buf_ptr++;
|
||||
while (isxdigit(*buf_ptr)) {
|
||||
CHECK_SIZE_TOKEN;
|
||||
*e_token++ = *buf_ptr++;
|
||||
}
|
||||
}
|
||||
else
|
||||
while (1) {
|
||||
if (*buf_ptr == '.') {
|
||||
if (seendot)
|
||||
break;
|
||||
else
|
||||
seendot++;
|
||||
}
|
||||
CHECK_SIZE_TOKEN;
|
||||
*e_token++ = *buf_ptr++;
|
||||
if (!isdigit((unsigned char)*buf_ptr) && *buf_ptr != '.') {
|
||||
if ((*buf_ptr != 'E' && *buf_ptr != 'e') || seenexp)
|
||||
break;
|
||||
else {
|
||||
seenexp++;
|
||||
seendot++;
|
||||
CHECK_SIZE_TOKEN;
|
||||
*e_token++ = *buf_ptr++;
|
||||
if (*buf_ptr == '+' || *buf_ptr == '-')
|
||||
*e_token++ = *buf_ptr++;
|
||||
}
|
||||
}
|
||||
}
|
||||
while (1) {
|
||||
if (!(seensfx & 1) &&
|
||||
(*buf_ptr == 'U' || *buf_ptr == 'u')) {
|
||||
CHECK_SIZE_TOKEN;
|
||||
*e_token++ = *buf_ptr++;
|
||||
seensfx |= 1;
|
||||
continue;
|
||||
}
|
||||
if (!(seensfx & 2) &&
|
||||
(*buf_ptr == 'L' || *buf_ptr == 'l')) {
|
||||
CHECK_SIZE_TOKEN;
|
||||
if (buf_ptr[1] == buf_ptr[0])
|
||||
*e_token++ = *buf_ptr++;
|
||||
*e_token++ = *buf_ptr++;
|
||||
seensfx |= 2;
|
||||
continue;
|
||||
}
|
||||
break;
|
||||
}
|
||||
if (!(seensfx & 1) &&
|
||||
(*buf_ptr == 'F' || *buf_ptr == 'f')) {
|
||||
CHECK_SIZE_TOKEN;
|
||||
*e_token++ = *buf_ptr++;
|
||||
seensfx |= 1;
|
||||
}
|
||||
}
|
||||
else
|
||||
while (chartype[(int)*buf_ptr] == alphanum) { /* copy it over */
|
||||
CHECK_SIZE_TOKEN;
|
||||
*e_token++ = *buf_ptr++;
|
||||
if (buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
}
|
||||
*e_token++ = '\0';
|
||||
while (*buf_ptr == ' ' || *buf_ptr == '\t') { /* get rid of blanks */
|
||||
if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
}
|
||||
ps.its_a_keyword = false;
|
||||
ps.sizeof_keyword = false;
|
||||
if (l_struct) { /* if last token was 'struct', then this token
|
||||
* should be treated as a declaration */
|
||||
l_struct = false;
|
||||
last_code = ident;
|
||||
ps.last_u_d = true;
|
||||
return (decl);
|
||||
}
|
||||
ps.last_u_d = false; /* Operator after identifier is binary */
|
||||
last_code = ident; /* Remember that this is the code we will
|
||||
* return */
|
||||
|
||||
/*
|
||||
* This loop will check if the token is a keyword.
|
||||
*/
|
||||
for (i = 0; i < nspecials; i++) {
|
||||
char *p = s_token; /* point at scanned token */
|
||||
j = specials[i].rwd;
|
||||
if (*j++ != *p++ || *j++ != *p++)
|
||||
continue; /* This test depends on the fact that
|
||||
* identifiers are always at least 1 character
|
||||
* long (ie. the first two bytes of the
|
||||
* identifier are always meaningful) */
|
||||
if (p[-1] == 0)
|
||||
break; /* If its a one-character identifier */
|
||||
while (*p++ == *j)
|
||||
if (*j++ == 0)
|
||||
goto found_keyword; /* I wish that C had a multi-level
|
||||
* break... */
|
||||
}
|
||||
if (i < nspecials) { /* we have a keyword */
|
||||
found_keyword:
|
||||
ps.its_a_keyword = true;
|
||||
ps.last_u_d = true;
|
||||
switch (specials[i].rwcode) {
|
||||
case 1: /* it is a switch */
|
||||
return (swstmt);
|
||||
case 2: /* a case or default */
|
||||
return (casestmt);
|
||||
|
||||
case 3: /* a "struct" */
|
||||
if (ps.p_l_follow)
|
||||
break; /* inside parens: cast */
|
||||
l_struct = true;
|
||||
|
||||
/*
|
||||
* Next time around, we will want to know that we have had a
|
||||
* 'struct'
|
||||
*/
|
||||
case 4: /* one of the declaration keywords */
|
||||
if (ps.p_l_follow) {
|
||||
ps.cast_mask |= 1 << ps.p_l_follow;
|
||||
break; /* inside parens: cast */
|
||||
}
|
||||
last_code = decl;
|
||||
return (decl);
|
||||
|
||||
case 5: /* if, while, for */
|
||||
return (sp_paren);
|
||||
|
||||
case 6: /* do, else */
|
||||
return (sp_nparen);
|
||||
|
||||
case 7:
|
||||
ps.sizeof_keyword = true;
|
||||
default: /* all others are treated like any other
|
||||
* identifier */
|
||||
return (ident);
|
||||
} /* end of switch */
|
||||
} /* end of if (found_it) */
|
||||
if (*buf_ptr == '(' && ps.tos <= 1 && ps.ind_level == 0) {
|
||||
char *tp = buf_ptr;
|
||||
while (tp < buf_end)
|
||||
if (*tp++ == ')' && (*tp == ';' || *tp == ','))
|
||||
goto not_proc;
|
||||
strlcpy(ps.procname, token, sizeof ps.procname);
|
||||
ps.in_parameter_declaration = 1;
|
||||
rparen_count = 1;
|
||||
not_proc:;
|
||||
}
|
||||
/*
|
||||
* The following hack attempts to guess whether or not the current
|
||||
* token is in fact a declaration keyword -- one that has been
|
||||
* typedefd
|
||||
*/
|
||||
if (((*buf_ptr == '*' && buf_ptr[1] != '=') ||
|
||||
isalpha((unsigned char)*buf_ptr) || *buf_ptr == '_')
|
||||
&& !ps.p_l_follow
|
||||
&& !ps.block_init
|
||||
&& (ps.last_token == rparen || ps.last_token == semicolon ||
|
||||
ps.last_token == decl ||
|
||||
ps.last_token == lbrace || ps.last_token == rbrace)) {
|
||||
ps.its_a_keyword = true;
|
||||
ps.last_u_d = true;
|
||||
last_code = decl;
|
||||
return decl;
|
||||
}
|
||||
if (last_code == decl) /* if this is a declared variable, then
|
||||
* following sign is unary */
|
||||
ps.last_u_d = true; /* will make "int a -1" work */
|
||||
last_code = ident;
|
||||
return (ident); /* the ident is not in the list */
|
||||
} /* end of procesing for alpanum character */
|
||||
|
||||
/* Scan a non-alphanumeric token */
|
||||
|
||||
*e_token++ = *buf_ptr; /* if it is only a one-character token, it is
|
||||
* moved here */
|
||||
*e_token = '\0';
|
||||
if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
|
||||
switch (*token) {
|
||||
case '\n':
|
||||
unary_delim = ps.last_u_d;
|
||||
ps.last_nl = true; /* remember that we just had a newline */
|
||||
code = (had_eof ? 0 : newline);
|
||||
|
||||
/*
|
||||
* if data has been exausted, the newline is a dummy, and we should
|
||||
* return code to stop
|
||||
*/
|
||||
break;
|
||||
|
||||
case '\'': /* start of quoted character */
|
||||
case '"': /* start of string */
|
||||
qchar = *token;
|
||||
if (troff) {
|
||||
e_token[-1] = '`';
|
||||
if (qchar == '"')
|
||||
*e_token++ = '`';
|
||||
e_token = chfont(&bodyf, &stringf, e_token);
|
||||
}
|
||||
do { /* copy the string */
|
||||
while (1) { /* move one character or [/<char>]<char> */
|
||||
if (*buf_ptr == '\n') {
|
||||
printf("%d: Unterminated literal\n", line_no);
|
||||
goto stop_lit;
|
||||
}
|
||||
CHECK_SIZE_TOKEN; /* Only have to do this once in this loop,
|
||||
* since CHECK_SIZE guarantees that there
|
||||
* are at least 5 entries left */
|
||||
*e_token = *buf_ptr++;
|
||||
if (buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
if (*e_token == BACKSLASH) { /* if escape, copy extra char */
|
||||
if (*buf_ptr == '\n') /* check for escaped newline */
|
||||
++line_no;
|
||||
if (troff) {
|
||||
*++e_token = BACKSLASH;
|
||||
if (*buf_ptr == BACKSLASH)
|
||||
*++e_token = BACKSLASH;
|
||||
}
|
||||
*++e_token = *buf_ptr++;
|
||||
++e_token; /* we must increment this again because we
|
||||
* copied two chars */
|
||||
if (buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
}
|
||||
else
|
||||
break; /* we copied one character */
|
||||
} /* end of while (1) */
|
||||
} while (*e_token++ != qchar);
|
||||
if (troff) {
|
||||
e_token = chfont(&stringf, &bodyf, e_token - 1);
|
||||
if (qchar == '"')
|
||||
*e_token++ = '\'';
|
||||
}
|
||||
stop_lit:
|
||||
code = ident;
|
||||
break;
|
||||
|
||||
case ('('):
|
||||
case ('['):
|
||||
unary_delim = true;
|
||||
code = lparen;
|
||||
break;
|
||||
|
||||
case (')'):
|
||||
case (']'):
|
||||
code = rparen;
|
||||
break;
|
||||
|
||||
case '#':
|
||||
unary_delim = ps.last_u_d;
|
||||
code = preesc;
|
||||
break;
|
||||
|
||||
case '?':
|
||||
unary_delim = true;
|
||||
code = question;
|
||||
break;
|
||||
|
||||
case (':'):
|
||||
code = colon;
|
||||
unary_delim = true;
|
||||
break;
|
||||
|
||||
case (';'):
|
||||
unary_delim = true;
|
||||
code = semicolon;
|
||||
break;
|
||||
|
||||
case ('{'):
|
||||
unary_delim = true;
|
||||
|
||||
/*
|
||||
* if (ps.in_or_st) ps.block_init = 1;
|
||||
*/
|
||||
/* ? code = ps.block_init ? lparen : lbrace; */
|
||||
code = lbrace;
|
||||
break;
|
||||
|
||||
case ('}'):
|
||||
unary_delim = true;
|
||||
/* ? code = ps.block_init ? rparen : rbrace; */
|
||||
code = rbrace;
|
||||
break;
|
||||
|
||||
case 014: /* a form feed */
|
||||
unary_delim = ps.last_u_d;
|
||||
ps.last_nl = true; /* remember this so we can set 'ps.col_1'
|
||||
* right */
|
||||
code = form_feed;
|
||||
break;
|
||||
|
||||
case (','):
|
||||
unary_delim = true;
|
||||
code = comma;
|
||||
break;
|
||||
|
||||
case '.':
|
||||
unary_delim = false;
|
||||
code = period;
|
||||
break;
|
||||
|
||||
case '-':
|
||||
case '+': /* check for -, +, --, ++ */
|
||||
code = (ps.last_u_d ? unary_op : binary_op);
|
||||
unary_delim = true;
|
||||
|
||||
if (*buf_ptr == token[0]) {
|
||||
/* check for doubled character */
|
||||
*e_token++ = *buf_ptr++;
|
||||
/* buffer overflow will be checked at end of loop */
|
||||
if (last_code == ident || last_code == rparen) {
|
||||
code = (ps.last_u_d ? unary_op : postop);
|
||||
/* check for following ++ or -- */
|
||||
unary_delim = false;
|
||||
}
|
||||
}
|
||||
else if (*buf_ptr == '=')
|
||||
/* check for operator += */
|
||||
*e_token++ = *buf_ptr++;
|
||||
else if (*buf_ptr == '>') {
|
||||
/* check for operator -> */
|
||||
*e_token++ = *buf_ptr++;
|
||||
if (!pointer_as_binop) {
|
||||
unary_delim = false;
|
||||
code = unary_op;
|
||||
ps.want_blank = false;
|
||||
}
|
||||
}
|
||||
break; /* buffer overflow will be checked at end of
|
||||
* switch */
|
||||
|
||||
case '=':
|
||||
if (ps.in_or_st)
|
||||
ps.block_init = 1;
|
||||
#ifdef undef
|
||||
if (chartype[*buf_ptr] == opchar) { /* we have two char assignment */
|
||||
e_token[-1] = *buf_ptr++;
|
||||
if ((e_token[-1] == '<' || e_token[-1] == '>') && e_token[-1] == *buf_ptr)
|
||||
*e_token++ = *buf_ptr++;
|
||||
*e_token++ = '='; /* Flip =+ to += */
|
||||
*e_token = 0;
|
||||
}
|
||||
#else
|
||||
if (*buf_ptr == '=') {/* == */
|
||||
*e_token++ = '='; /* Flip =+ to += */
|
||||
buf_ptr++;
|
||||
*e_token = 0;
|
||||
}
|
||||
#endif
|
||||
code = binary_op;
|
||||
unary_delim = true;
|
||||
break;
|
||||
/* can drop thru!!! */
|
||||
|
||||
case '>':
|
||||
case '<':
|
||||
case '!': /* ops like <, <<, <=, !=, etc */
|
||||
if (*buf_ptr == '>' || *buf_ptr == '<' || *buf_ptr == '=') {
|
||||
*e_token++ = *buf_ptr;
|
||||
if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
}
|
||||
if (*buf_ptr == '=')
|
||||
*e_token++ = *buf_ptr++;
|
||||
code = (ps.last_u_d ? unary_op : binary_op);
|
||||
unary_delim = true;
|
||||
break;
|
||||
|
||||
default:
|
||||
if (token[0] == '/' && *buf_ptr == '*') {
|
||||
/* it is start of comment */
|
||||
*e_token++ = '*';
|
||||
|
||||
if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
|
||||
code = comment;
|
||||
unary_delim = ps.last_u_d;
|
||||
break;
|
||||
}
|
||||
while (*(e_token - 1) == *buf_ptr || *buf_ptr == '=') {
|
||||
/*
|
||||
* handle ||, &&, etc, and also things as in int *****i
|
||||
*/
|
||||
*e_token++ = *buf_ptr;
|
||||
if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
}
|
||||
code = (ps.last_u_d ? unary_op : binary_op);
|
||||
unary_delim = true;
|
||||
|
||||
|
||||
} /* end of switch */
|
||||
if (code != newline) {
|
||||
l_struct = false;
|
||||
last_code = code;
|
||||
}
|
||||
if (buf_ptr >= buf_end) /* check for input buffer empty */
|
||||
fill_buffer();
|
||||
ps.last_u_d = unary_delim;
|
||||
*e_token = '\0'; /* null terminate the token */
|
||||
return (code);
|
||||
}
|
||||
|
||||
/*
|
||||
* Add the given keyword to the keyword table, using val as the keyword type
|
||||
*/
|
||||
void
|
||||
addkey(char *key, int val)
|
||||
{
|
||||
struct templ *p;
|
||||
int i;
|
||||
|
||||
for (i = 0; i < nspecials; i++) {
|
||||
p = &specials[i];
|
||||
if (p->rwd[0] == key[0] && strcmp(p->rwd, key) == 0)
|
||||
return;
|
||||
}
|
||||
|
||||
if (specials == specialsinit) {
|
||||
/*
|
||||
* Whoa. Must reallocate special table.
|
||||
*/
|
||||
nspecials = sizeof (specialsinit) / sizeof (specialsinit[0]);
|
||||
maxspecials = nspecials + (nspecials >> 2);
|
||||
specials = calloc(maxspecials, sizeof specials[0]);
|
||||
if (specials == NULL)
|
||||
err(1, NULL);
|
||||
memcpy(specials, specialsinit, sizeof specialsinit);
|
||||
} else if (nspecials >= maxspecials) {
|
||||
int newspecials = maxspecials + (maxspecials >> 2);
|
||||
struct templ *specials2;
|
||||
|
||||
specials2 = reallocarray(specials, newspecials, sizeof(specials[0]));
|
||||
if (specials2 == NULL)
|
||||
err(1, NULL);
|
||||
specials = specials2;
|
||||
maxspecials = newspecials;
|
||||
}
|
||||
|
||||
p = &specials[nspecials];
|
||||
p->rwd = key;
|
||||
p->rwcode = val;
|
||||
nspecials++;
|
||||
return;
|
||||
}
|
||||
322
parse.c
Normal file
322
parse.c
Normal file
@ -0,0 +1,322 @@
|
||||
/* $OpenBSD: parse.c,v 1.9 2009/10/27 23:59:39 deraadt Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1980, 1993
|
||||
* The Regents of the University of California.
|
||||
* Copyright (c) 1976 Board of Trustees of the University of Illinois.
|
||||
* Copyright (c) 1985 Sun Microsystems, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include "indent_globs.h"
|
||||
#include "indent_codes.h"
|
||||
|
||||
void reduce(void);
|
||||
|
||||
void
|
||||
parse(int tk) /* the code for the construct scanned */
|
||||
{
|
||||
int i;
|
||||
|
||||
#ifdef debug
|
||||
printf("%2d - %s\n", tk, token);
|
||||
#endif
|
||||
|
||||
while (ps.p_stack[ps.tos] == ifhead && tk != elselit) {
|
||||
/* true if we have an if without an else */
|
||||
ps.p_stack[ps.tos] = stmt; /* apply the if(..) stmt ::= stmt
|
||||
* reduction */
|
||||
reduce(); /* see if this allows any reduction */
|
||||
}
|
||||
|
||||
|
||||
switch (tk) { /* go on and figure out what to do with the
|
||||
* input */
|
||||
|
||||
case decl: /* scanned a declaration word */
|
||||
ps.search_brace = btype_2;
|
||||
/* indicate that following brace should be on same line */
|
||||
if (ps.p_stack[ps.tos] != decl) { /* only put one declaration
|
||||
* onto stack */
|
||||
break_comma = true; /* while in declaration, newline should be
|
||||
* forced after comma */
|
||||
ps.p_stack[++ps.tos] = decl;
|
||||
ps.il[ps.tos] = ps.i_l_follow;
|
||||
|
||||
if (ps.ljust_decl) {/* only do if we want left justified
|
||||
* declarations */
|
||||
ps.ind_level = 0;
|
||||
for (i = ps.tos - 1; i > 0; --i)
|
||||
if (ps.p_stack[i] == decl)
|
||||
++ps.ind_level; /* indentation is number of
|
||||
* declaration levels deep we are */
|
||||
ps.i_l_follow = ps.ind_level;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
case ifstmt: /* scanned if (...) */
|
||||
if (ps.p_stack[ps.tos] == elsehead && ps.else_if) /* "else if ..." */
|
||||
ps.i_l_follow = ps.il[ps.tos];
|
||||
case dolit: /* 'do' */
|
||||
case forstmt: /* for (...) */
|
||||
ps.p_stack[++ps.tos] = tk;
|
||||
ps.il[ps.tos] = ps.ind_level = ps.i_l_follow;
|
||||
++ps.i_l_follow; /* subsequent statements should be indented 1 */
|
||||
ps.search_brace = btype_2;
|
||||
break;
|
||||
|
||||
case lbrace: /* scanned { */
|
||||
break_comma = false; /* don't break comma in an initial list */
|
||||
if (ps.p_stack[ps.tos] == stmt || ps.p_stack[ps.tos] == decl
|
||||
|| ps.p_stack[ps.tos] == stmtl)
|
||||
++ps.i_l_follow; /* it is a random, isolated stmt group or a
|
||||
* declaration */
|
||||
else {
|
||||
if (s_code == e_code) {
|
||||
/*
|
||||
* only do this if there is nothing on the line
|
||||
*/
|
||||
--ps.ind_level;
|
||||
/*
|
||||
* it is a group as part of a while, for, etc.
|
||||
*/
|
||||
if (ps.p_stack[ps.tos] == swstmt && ps.case_indent >= 1)
|
||||
--ps.ind_level;
|
||||
/*
|
||||
* for a switch, brace should be two levels out from the code
|
||||
*/
|
||||
}
|
||||
}
|
||||
|
||||
ps.p_stack[++ps.tos] = lbrace;
|
||||
ps.il[ps.tos] = ps.ind_level;
|
||||
ps.p_stack[++ps.tos] = stmt;
|
||||
/* allow null stmt between braces */
|
||||
ps.il[ps.tos] = ps.i_l_follow;
|
||||
break;
|
||||
|
||||
case whilestmt: /* scanned while (...) */
|
||||
if (ps.p_stack[ps.tos] == dohead) {
|
||||
/* it is matched with do stmt */
|
||||
ps.ind_level = ps.i_l_follow = ps.il[ps.tos];
|
||||
ps.p_stack[++ps.tos] = whilestmt;
|
||||
ps.il[ps.tos] = ps.ind_level = ps.i_l_follow;
|
||||
}
|
||||
else { /* it is a while loop */
|
||||
ps.p_stack[++ps.tos] = whilestmt;
|
||||
ps.il[ps.tos] = ps.i_l_follow;
|
||||
++ps.i_l_follow;
|
||||
ps.search_brace = btype_2;
|
||||
}
|
||||
|
||||
break;
|
||||
|
||||
case elselit: /* scanned an else */
|
||||
|
||||
if (ps.p_stack[ps.tos] != ifhead)
|
||||
diag(1, "Unmatched 'else'");
|
||||
else {
|
||||
ps.ind_level = ps.il[ps.tos]; /* indentation for else should
|
||||
* be same as for if */
|
||||
ps.i_l_follow = ps.ind_level + 1; /* everything following should
|
||||
* be in 1 level */
|
||||
ps.p_stack[ps.tos] = elsehead;
|
||||
/* remember if with else */
|
||||
ps.search_brace = btype_2 | ps.else_if;
|
||||
}
|
||||
break;
|
||||
|
||||
case rbrace: /* scanned a } */
|
||||
/* stack should have <lbrace> <stmt> or <lbrace> <stmtl> */
|
||||
if (ps.p_stack[ps.tos - 1] == lbrace) {
|
||||
ps.ind_level = ps.i_l_follow = ps.il[--ps.tos];
|
||||
ps.p_stack[ps.tos] = stmt;
|
||||
}
|
||||
else
|
||||
diag(1, "Stmt nesting error.");
|
||||
break;
|
||||
|
||||
case swstmt: /* had switch (...) */
|
||||
ps.p_stack[++ps.tos] = swstmt;
|
||||
ps.cstk[ps.tos] = case_ind;
|
||||
/* save current case indent level */
|
||||
ps.il[ps.tos] = ps.i_l_follow;
|
||||
case_ind = ps.i_l_follow + ps.case_indent; /* cases should be one
|
||||
* level down from
|
||||
* switch */
|
||||
ps.i_l_follow += ps.case_indent + 1; /* statements should be two
|
||||
* levels in */
|
||||
ps.search_brace = btype_2;
|
||||
break;
|
||||
|
||||
case semicolon: /* this indicates a simple stmt */
|
||||
break_comma = false; /* turn off flag to break after commas in a
|
||||
* declaration */
|
||||
ps.p_stack[++ps.tos] = stmt;
|
||||
ps.il[ps.tos] = ps.ind_level;
|
||||
break;
|
||||
|
||||
default: /* this is an error */
|
||||
diag(1, "Unknown code to parser");
|
||||
return;
|
||||
|
||||
|
||||
} /* end of switch */
|
||||
|
||||
reduce(); /* see if any reduction can be done */
|
||||
|
||||
#ifdef debug
|
||||
for (i = 1; i <= ps.tos; ++i)
|
||||
printf("(%d %d)", ps.p_stack[i], ps.il[i]);
|
||||
printf("\n");
|
||||
#endif
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
/*
|
||||
* NAME: reduce
|
||||
*
|
||||
* FUNCTION: Implements the reduce part of the parsing algorithm
|
||||
*
|
||||
* ALGORITHM: The following reductions are done. Reductions are repeated
|
||||
* until no more are possible.
|
||||
*
|
||||
* Old TOS New TOS
|
||||
* <stmt> <stmt> <stmtl>
|
||||
* <stmtl> <stmt> <stmtl>
|
||||
* do <stmt> "dostmt"
|
||||
* if <stmt> "ifstmt"
|
||||
* switch <stmt> <stmt>
|
||||
* decl <stmt> <stmt>
|
||||
* "ifelse" <stmt> <stmt>
|
||||
* for <stmt> <stmt>
|
||||
* while <stmt> <stmt>
|
||||
* "dostmt" while <stmt>
|
||||
*
|
||||
* On each reduction, ps.i_l_follow (the indentation for the following line)
|
||||
* is set to the indentation level associated with the old TOS.
|
||||
*
|
||||
* PARAMETERS: None
|
||||
*
|
||||
* RETURNS: Nothing
|
||||
*
|
||||
* GLOBALS: ps.cstk ps.i_l_follow = ps.il ps.p_stack = ps.tos =
|
||||
*
|
||||
* CALLS: None
|
||||
*
|
||||
* CALLED BY: parse
|
||||
*
|
||||
* HISTORY: initial coding November 1976 D A Willcox of CAC
|
||||
*
|
||||
*/
|
||||
/*----------------------------------------------*\
|
||||
| REDUCTION PHASE |
|
||||
\*----------------------------------------------*/
|
||||
void
|
||||
reduce(void)
|
||||
{
|
||||
|
||||
int i;
|
||||
|
||||
for (;;) { /* keep looping until there is nothing left to
|
||||
* reduce */
|
||||
|
||||
switch (ps.p_stack[ps.tos]) {
|
||||
|
||||
case stmt:
|
||||
switch (ps.p_stack[ps.tos - 1]) {
|
||||
|
||||
case stmt:
|
||||
case stmtl:
|
||||
/* stmtl stmt or stmt stmt */
|
||||
ps.p_stack[--ps.tos] = stmtl;
|
||||
break;
|
||||
|
||||
case dolit: /* <do> <stmt> */
|
||||
ps.p_stack[--ps.tos] = dohead;
|
||||
ps.i_l_follow = ps.il[ps.tos];
|
||||
break;
|
||||
|
||||
case ifstmt:
|
||||
/* <if> <stmt> */
|
||||
ps.p_stack[--ps.tos] = ifhead;
|
||||
for (i = ps.tos - 1;
|
||||
(
|
||||
ps.p_stack[i] != stmt
|
||||
&&
|
||||
ps.p_stack[i] != stmtl
|
||||
&&
|
||||
ps.p_stack[i] != lbrace
|
||||
);
|
||||
--i);
|
||||
ps.i_l_follow = ps.il[i];
|
||||
/*
|
||||
* for the time being, we will assume that there is no else on
|
||||
* this if, and set the indentation level accordingly. If an
|
||||
* else is scanned, it will be fixed up later
|
||||
*/
|
||||
break;
|
||||
|
||||
case swstmt:
|
||||
/* <switch> <stmt> */
|
||||
case_ind = ps.cstk[ps.tos - 1];
|
||||
|
||||
case decl: /* finish of a declaration */
|
||||
case elsehead:
|
||||
/* <<if> <stmt> else> <stmt> */
|
||||
case forstmt:
|
||||
/* <for> <stmt> */
|
||||
case whilestmt:
|
||||
/* <while> <stmt> */
|
||||
ps.p_stack[--ps.tos] = stmt;
|
||||
ps.i_l_follow = ps.il[ps.tos];
|
||||
break;
|
||||
|
||||
default: /* <anything else> <stmt> */
|
||||
return;
|
||||
|
||||
} /* end of section for <stmt> on top of stack */
|
||||
break;
|
||||
|
||||
case whilestmt: /* while (...) on top */
|
||||
if (ps.p_stack[ps.tos - 1] == dohead) {
|
||||
/* it is termination of a do while */
|
||||
ps.p_stack[--ps.tos] = stmt;
|
||||
break;
|
||||
}
|
||||
else
|
||||
return;
|
||||
|
||||
default: /* anything else on top */
|
||||
return;
|
||||
|
||||
}
|
||||
}
|
||||
}
|
||||
415
pr_comment.c
Normal file
415
pr_comment.c
Normal file
@ -0,0 +1,415 @@
|
||||
/* $OpenBSD: pr_comment.c,v 1.7 2009/10/27 23:59:39 deraadt Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1980, 1993
|
||||
* The Regents of the University of California.
|
||||
* Copyright (c) 1976 Board of Trustees of the University of Illinois.
|
||||
* Copyright (c) 1985 Sun Microsystems, Inc.
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include <err.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include "indent_globs.h"
|
||||
|
||||
/*
|
||||
* NAME:
|
||||
* pr_comment
|
||||
*
|
||||
* FUNCTION:
|
||||
* This routine takes care of scanning and printing comments.
|
||||
*
|
||||
* ALGORITHM:
|
||||
* 1) Decide where the comment should be aligned, and if lines should
|
||||
* be broken.
|
||||
* 2) If lines should not be broken and filled, just copy up to end of
|
||||
* comment.
|
||||
* 3) If lines should be filled, then scan thru input_buffer copying
|
||||
* characters to com_buf. Remember where the last blank, tab, or
|
||||
* newline was. When line is filled, print up to last blank and
|
||||
* continue copying.
|
||||
*
|
||||
* HISTORY:
|
||||
* November 1976 D A Willcox of CAC Initial coding
|
||||
* 12/6/76 D A Willcox of CAC Modification to handle
|
||||
* UNIX-style comments
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
* this routine processes comments. It makes an attempt to keep comments from
|
||||
* going over the max line length. If a line is too long, it moves everything
|
||||
* from the last blank to the next comment line. Blanks and tabs from the
|
||||
* beginning of the input line are removed
|
||||
*/
|
||||
|
||||
void
|
||||
pr_comment(void)
|
||||
{
|
||||
int now_col; /* column we are in now */
|
||||
int adj_max_col; /* Adjusted max_col for when we decide to
|
||||
* spill comments over the right margin */
|
||||
char *last_bl; /* points to the last blank in the output
|
||||
* buffer */
|
||||
char *t_ptr; /* used for moving string */
|
||||
int unix_comment; /* tri-state variable used to decide if it is
|
||||
* a unix-style comment. 0 means only blanks
|
||||
* since / *, 1 means regular style comment, 2
|
||||
* means unix style comment */
|
||||
int break_delim = comment_delimiter_on_blankline;
|
||||
int l_just_saw_decl = ps.just_saw_decl;
|
||||
/*
|
||||
* int ps.last_nl = 0; true iff the last significant thing
|
||||
* we've seen is a newline
|
||||
*/
|
||||
int one_liner = 1; /* true iff this comment is a one-liner */
|
||||
adj_max_col = max_col;
|
||||
ps.just_saw_decl = 0;
|
||||
last_bl = 0; /* no blanks found so far */
|
||||
ps.box_com = false; /* at first, assume that we are not in
|
||||
* a boxed comment or some other
|
||||
* comment that should not be touched */
|
||||
++ps.out_coms; /* keep track of number of comments */
|
||||
unix_comment = 1; /* set flag to let us figure out if there is a
|
||||
* unix-style comment ** DISABLED: use 0 to
|
||||
* reenable this hack! */
|
||||
|
||||
/* Figure where to align and how to treat the comment */
|
||||
|
||||
if (ps.col_1 && !format_col1_comments) { /* if comment starts in column
|
||||
* 1 it should not be touched */
|
||||
ps.box_com = true;
|
||||
ps.com_col = 1;
|
||||
}
|
||||
else {
|
||||
if (*buf_ptr == '-' || *buf_ptr == '*' || *buf_ptr == '\n') {
|
||||
ps.box_com = true; /* a comment with a '-', '*' or newline
|
||||
* immediately after the / * is assumed to be
|
||||
* a boxed comment */
|
||||
break_delim = 0;
|
||||
}
|
||||
if ( /* ps.bl_line && */ (s_lab == e_lab) && (s_code == e_code)) {
|
||||
/* klg: check only if this line is blank */
|
||||
/*
|
||||
* If this (*and previous lines are*) blank, don't put comment way
|
||||
* out at left
|
||||
*/
|
||||
ps.com_col = (ps.ind_level - ps.unindent_displace) * ps.ind_size + 1;
|
||||
adj_max_col = block_comment_max_col;
|
||||
if (ps.com_col <= 1)
|
||||
ps.com_col = 1 + !format_col1_comments;
|
||||
}
|
||||
else {
|
||||
int target_col;
|
||||
break_delim = 0;
|
||||
if (s_code != e_code)
|
||||
target_col = count_spaces(compute_code_target(), s_code);
|
||||
else {
|
||||
target_col = 1;
|
||||
if (s_lab != e_lab)
|
||||
target_col = count_spaces(compute_label_target(), s_lab);
|
||||
}
|
||||
ps.com_col = ps.decl_on_line || ps.ind_level == 0 ? ps.decl_com_ind : ps.com_ind;
|
||||
if (ps.com_col < target_col)
|
||||
ps.com_col = ((target_col + 7) & ~7) + 1;
|
||||
if (ps.com_col + 24 > adj_max_col)
|
||||
adj_max_col = ps.com_col + 24;
|
||||
}
|
||||
}
|
||||
if (ps.box_com) {
|
||||
buf_ptr[-2] = 0;
|
||||
ps.n_comment_delta = 1 - count_spaces(1, in_buffer);
|
||||
buf_ptr[-2] = '/';
|
||||
}
|
||||
else {
|
||||
ps.n_comment_delta = 0;
|
||||
while (*buf_ptr == ' ' || *buf_ptr == '\t')
|
||||
buf_ptr++;
|
||||
}
|
||||
ps.comment_delta = 0;
|
||||
*e_com++ = '/'; /* put '/ *' into buffer */
|
||||
*e_com++ = '*';
|
||||
if (*buf_ptr != ' ' && !ps.box_com)
|
||||
*e_com++ = ' ';
|
||||
|
||||
*e_com = '\0';
|
||||
if (troff) {
|
||||
now_col = 1;
|
||||
adj_max_col = 80;
|
||||
}
|
||||
else
|
||||
now_col = count_spaces(ps.com_col, s_com); /* figure what column we
|
||||
* would be in if we
|
||||
* printed the comment
|
||||
* now */
|
||||
|
||||
/* Start to copy the comment */
|
||||
|
||||
while (1) { /* this loop will go until the comment is
|
||||
* copied */
|
||||
if (*buf_ptr > 040 && *buf_ptr != '*')
|
||||
ps.last_nl = 0;
|
||||
CHECK_SIZE_COM;
|
||||
switch (*buf_ptr) { /* this checks for various spcl cases */
|
||||
case 014: /* check for a form feed */
|
||||
if (!ps.box_com) { /* in a text comment, break the line here */
|
||||
ps.use_ff = true;
|
||||
/* fix so dump_line uses a form feed */
|
||||
dump_line();
|
||||
last_bl = 0;
|
||||
*e_com++ = ' ';
|
||||
*e_com++ = '*';
|
||||
*e_com++ = ' ';
|
||||
while (*++buf_ptr == ' ' || *buf_ptr == '\t');
|
||||
}
|
||||
else {
|
||||
if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
*e_com++ = 014;
|
||||
}
|
||||
break;
|
||||
|
||||
case '\n':
|
||||
if (had_eof) { /* check for unexpected eof */
|
||||
printf("Unterminated comment\n");
|
||||
*e_com = '\0';
|
||||
dump_line();
|
||||
return;
|
||||
}
|
||||
one_liner = 0;
|
||||
if (ps.box_com || ps.last_nl) { /* if this is a boxed comment,
|
||||
* we don't ignore the newline
|
||||
*/
|
||||
if (s_com == e_com) {
|
||||
*e_com++ = ' ';
|
||||
*e_com++ = ' ';
|
||||
}
|
||||
*e_com = '\0';
|
||||
if (!ps.box_com && e_com - s_com > 3) {
|
||||
if (break_delim == 1 && s_com[0] == '/'
|
||||
&& s_com[1] == '*' && s_com[2] == ' ') {
|
||||
char *t = e_com;
|
||||
break_delim = 2;
|
||||
e_com = s_com + 2;
|
||||
*e_com = 0;
|
||||
if (blanklines_before_blockcomments)
|
||||
prefix_blankline_requested = 1;
|
||||
dump_line();
|
||||
e_com = t;
|
||||
s_com[0] = s_com[1] = s_com[2] = ' ';
|
||||
}
|
||||
dump_line();
|
||||
CHECK_SIZE_COM;
|
||||
*e_com++ = ' ';
|
||||
*e_com++ = ' ';
|
||||
}
|
||||
dump_line();
|
||||
now_col = ps.com_col;
|
||||
}
|
||||
else {
|
||||
ps.last_nl = 1;
|
||||
if (unix_comment != 1) { /* we not are in unix_style
|
||||
* comment */
|
||||
if (unix_comment == 0 && s_code == e_code) {
|
||||
/*
|
||||
* if it is a UNIX-style comment, ignore the
|
||||
* requirement that previous line be blank for
|
||||
* unindention
|
||||
*/
|
||||
ps.com_col = (ps.ind_level - ps.unindent_displace) * ps.ind_size + 1;
|
||||
if (ps.com_col <= 1)
|
||||
ps.com_col = 2;
|
||||
}
|
||||
unix_comment = 2; /* permanently remember that we are in
|
||||
* this type of comment */
|
||||
dump_line();
|
||||
++line_no;
|
||||
now_col = ps.com_col;
|
||||
*e_com++ = ' ';
|
||||
/*
|
||||
* fix so that the star at the start of the line will line
|
||||
* up
|
||||
*/
|
||||
do /* flush leading white space */
|
||||
if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
while (*buf_ptr == ' ' || *buf_ptr == '\t');
|
||||
break;
|
||||
}
|
||||
if (*(e_com - 1) == ' ' || *(e_com - 1) == '\t')
|
||||
last_bl = e_com - 1;
|
||||
/*
|
||||
* if there was a space at the end of the last line, remember
|
||||
* where it was
|
||||
*/
|
||||
else { /* otherwise, insert one */
|
||||
last_bl = e_com;
|
||||
CHECK_SIZE_COM;
|
||||
*e_com++ = ' ';
|
||||
++now_col;
|
||||
}
|
||||
}
|
||||
++line_no; /* keep track of input line number */
|
||||
if (!ps.box_com) {
|
||||
int nstar = 1;
|
||||
do { /* flush any blanks and/or tabs at start of
|
||||
* next line */
|
||||
if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
if (*buf_ptr == '*' && --nstar >= 0) {
|
||||
if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
if (*buf_ptr == '/')
|
||||
goto end_of_comment;
|
||||
}
|
||||
} while (*buf_ptr == ' ' || *buf_ptr == '\t');
|
||||
}
|
||||
else if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
break; /* end of case for newline */
|
||||
|
||||
case '*': /* must check for possibility of being at end
|
||||
* of comment */
|
||||
if (++buf_ptr >= buf_end) /* get to next char after * */
|
||||
fill_buffer();
|
||||
|
||||
if (unix_comment == 0) /* set flag to show we are not in
|
||||
* unix-style comment */
|
||||
unix_comment = 1;
|
||||
|
||||
if (*buf_ptr == '/') { /* it is the end!!! */
|
||||
end_of_comment:
|
||||
if (++buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
|
||||
if (*(e_com - 1) != ' ' && !ps.box_com) { /* insure blank before
|
||||
* end */
|
||||
*e_com++ = ' ';
|
||||
++now_col;
|
||||
}
|
||||
if (break_delim == 1 && !one_liner && s_com[0] == '/'
|
||||
&& s_com[1] == '*' && s_com[2] == ' ') {
|
||||
char *t = e_com;
|
||||
break_delim = 2;
|
||||
e_com = s_com + 2;
|
||||
*e_com = 0;
|
||||
if (blanklines_before_blockcomments)
|
||||
prefix_blankline_requested = 1;
|
||||
dump_line();
|
||||
e_com = t;
|
||||
s_com[0] = s_com[1] = s_com[2] = ' ';
|
||||
}
|
||||
if (break_delim == 2 && e_com > s_com + 3
|
||||
/* now_col > adj_max_col - 2 && !ps.box_com */ ) {
|
||||
*e_com = '\0';
|
||||
dump_line();
|
||||
now_col = ps.com_col;
|
||||
}
|
||||
CHECK_SIZE_COM;
|
||||
*e_com++ = '*';
|
||||
*e_com++ = '/';
|
||||
*e_com = '\0';
|
||||
ps.just_saw_decl = l_just_saw_decl;
|
||||
return;
|
||||
}
|
||||
else { /* handle isolated '*' */
|
||||
*e_com++ = '*';
|
||||
++now_col;
|
||||
}
|
||||
break;
|
||||
default: /* we have a random char */
|
||||
if (unix_comment == 0 && *buf_ptr != ' ' && *buf_ptr != '\t')
|
||||
unix_comment = 1; /* we are not in unix-style comment */
|
||||
|
||||
*e_com = *buf_ptr++;
|
||||
if (buf_ptr >= buf_end)
|
||||
fill_buffer();
|
||||
|
||||
if (*e_com == '\t') /* keep track of column */
|
||||
now_col = ((now_col - 1) & tabmask) + tabsize + 1;
|
||||
else if (*e_com == '\b') /* this is a backspace */
|
||||
--now_col;
|
||||
else
|
||||
++now_col;
|
||||
|
||||
if (*e_com == ' ' || *e_com == '\t')
|
||||
last_bl = e_com;
|
||||
/* remember we saw a blank */
|
||||
|
||||
++e_com;
|
||||
if (now_col > adj_max_col && !ps.box_com && unix_comment == 1 && e_com[-1] > ' ') {
|
||||
/*
|
||||
* the comment is too long, it must be broken up
|
||||
*/
|
||||
if (break_delim == 1 && s_com[0] == '/'
|
||||
&& s_com[1] == '*' && s_com[2] == ' ') {
|
||||
char *t = e_com;
|
||||
break_delim = 2;
|
||||
e_com = s_com + 2;
|
||||
*e_com = 0;
|
||||
if (blanklines_before_blockcomments)
|
||||
prefix_blankline_requested = 1;
|
||||
dump_line();
|
||||
e_com = t;
|
||||
s_com[0] = s_com[1] = s_com[2] = ' ';
|
||||
}
|
||||
if (last_bl == 0) { /* we have seen no blanks */
|
||||
last_bl = e_com; /* fake it */
|
||||
*e_com++ = ' ';
|
||||
}
|
||||
*e_com = '\0'; /* print what we have */
|
||||
*last_bl = '\0';
|
||||
while (last_bl > s_com && last_bl[-1] < 040)
|
||||
*--last_bl = 0;
|
||||
e_com = last_bl;
|
||||
dump_line();
|
||||
|
||||
*e_com++ = ' '; /* add blanks for continuation */
|
||||
*e_com++ = ' ';
|
||||
*e_com++ = ' ';
|
||||
|
||||
t_ptr = last_bl + 1;
|
||||
last_bl = 0;
|
||||
if (t_ptr >= e_com) {
|
||||
while (*t_ptr == ' ' || *t_ptr == '\t')
|
||||
t_ptr++;
|
||||
while (*t_ptr != '\0') { /* move unprinted part of
|
||||
* comment down in buffer */
|
||||
if (*t_ptr == ' ' || *t_ptr == '\t')
|
||||
last_bl = e_com;
|
||||
*e_com++ = *t_ptr++;
|
||||
}
|
||||
}
|
||||
*e_com = '\0';
|
||||
now_col = count_spaces(ps.com_col, s_com); /* recompute current
|
||||
* position */
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user