GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/indent/args.c Lines: 0 66 0.0 %
Date: 2016-12-06 Branches: 0 68 0.0 %

Line Branch Exec Source
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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
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 * 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 },
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	{"l", PRO_INT, 78, 0, &max_col },
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	{"nbacc", PRO_BOOL, false, OFF,
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	 &blanklines_around_conditional_compilation },
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	{"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 },
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	{"nbc", PRO_BOOL, true, ON, &ps.leave_comma },
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	{"nbs", PRO_BOOL, false, OFF, &Bill_Shannon },
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	{"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline },
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	{"nce", PRO_BOOL, true, OFF, &cuddle_else },
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	{"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl },
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	{"neei", PRO_BOOL, false, OFF, &extra_expression_indent },
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	{"nei", PRO_BOOL, true, OFF, &ps.else_if },
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	{"nfc1", PRO_BOOL, true, OFF, &format_col1_comments },
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	{"nip", PRO_BOOL, true, OFF, &ps.indent_parameters },
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	{"nlp", PRO_BOOL, true, OFF, &lineup_to_parens },
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	{"npcs", PRO_BOOL, false, OFF, &proc_calls_space },
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	{"npro", PRO_SPECIAL, 0, IGN, 0 },
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	{"npsl", PRO_BOOL, true, OFF, &procnames_start_line },
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	{"nps", PRO_BOOL, false, OFF, &pointer_as_binop },
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	{"nsc", PRO_BOOL, true, OFF, &star_comment_cont },
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	{"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines },
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	{"nut", PRO_BOOL, true, OFF, &use_tabs},
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	{"nv", PRO_BOOL, false, OFF, &verbose },
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	{"pcs", PRO_BOOL, false, ON, &proc_calls_space },
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	{"psl", PRO_BOOL, true, ON, &procnames_start_line },
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	{"ps", PRO_BOOL, false, ON, &pointer_as_binop },
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	{"sc", PRO_BOOL, true, ON, &star_comment_cont },
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	{"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines },
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	{"st", PRO_SPECIAL, 0, STDIN, 0 },
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	{"troff", PRO_BOOL, false, ON, &troff },
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	{"ut", PRO_BOOL, true, ON, &use_tabs},
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	{"v", PRO_BOOL, false, ON, &verbose },
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	/* whew! */
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	{ 0, 0, 0, 0, 0 }
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};
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void scan_profile(FILE *);
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void set_option(char *);
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/*
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 * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
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 * given in these files.
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 */
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void
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set_profile(void)
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{
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    FILE *f;
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    char        fname[BUFSIZ];
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    char	*home;
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    static char prof[] = ".indent.pro";
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    home = getenv("HOME");
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    if (home != NULL && *home != '\0') {
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	if (snprintf(fname, sizeof fname, "%s/%s", home, prof) >= sizeof fname) {
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	    warnc(ENAMETOOLONG, "%s/%s", home, prof);
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	    return;
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	}
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	if ((f = fopen(option_source = fname, "r")) != NULL) {
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	    scan_profile(f);
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	    (void) fclose(f);
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	}
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    }
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    if ((f = fopen(option_source = prof, "r")) != NULL) {
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	scan_profile(f);
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	(void) fclose(f);
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    }
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    option_source = "Command line";
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}
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void
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scan_profile(FILE *f)
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{
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    int i;
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    char *p;
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    char        buf[BUFSIZ];
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    while (1) {
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	for (p = buf;
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	    (i = getc(f)) != EOF && (*p = i) > ' ' && p + 1 - buf < BUFSIZ;
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	    ++p)
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		;
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	if (p != buf) {
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	    *p = 0;
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	    if (verbose)
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		printf("profile: %s\n", buf);
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	    set_option(buf);
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	}
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	else if (i == EOF)
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	    return;
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    }
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}
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char       *param_start;
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int
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eqin(char *s1, char *s2)
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{
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    while (*s1) {
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	if (*s1++ != *s2++)
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	    return (false);
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    }
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    param_start = s2;
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    return (true);
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}
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/*
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 * Set the defaults.
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 */
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void
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set_defaults(void)
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{
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    struct pro *p;
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    /*
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     * Because ps.case_indent is a float, we can't initialize it from the
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     * table:
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     */
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    ps.case_indent = 0.0;	/* -cli0.0 */
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    for (p = pro; p->p_name; p++)
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	if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT)
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	    *p->p_obj = p->p_default;
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}
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void
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set_option(char *arg)
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{
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    struct pro *p;
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    arg++;			/* ignore leading "-" */
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    for (p = pro; p->p_name; p++)
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	if (*p->p_name == *arg && eqin(p->p_name, arg))
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	    goto found;
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    errx(1, "%s: unknown parameter \"%s\"", option_source, arg - 1);
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found:
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    switch (p->p_type) {
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    case PRO_SPECIAL:
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	switch (p->p_special) {
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	case IGN:
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	    break;
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	case CLI:
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	    if (*param_start == 0)
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		goto need_param;
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	    ps.case_indent = atof(param_start);
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	    break;
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	case STDIN:
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	    if (input == 0)
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		input = stdin;
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	    if (output == 0)
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		output = stdout;
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	    break;
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	case KEY:
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	    if (*param_start == 0)
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		goto need_param;
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	    {
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		char *str;
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		if ((str = strdup(param_start)) == NULL)
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			err(1, NULL);
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		addkey(str, 4);
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	    }
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	    break;
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	default:
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	    errx(1, "set_option: internal error: p_special %d", p->p_special);
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	}
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	break;
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    case PRO_BOOL:
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	if (p->p_special == OFF)
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	    *p->p_obj = false;
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	else
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	    *p->p_obj = true;
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	break;
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    case PRO_INT:
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	if (!isdigit((unsigned char)*param_start)) {
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    need_param:
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	    errx(1, "%s: ``%s'' requires a parameter", option_source, arg - 1);
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	}
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	*p->p_obj = atoi(param_start);
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	if (*p->p_name == 'i' && *p->p_obj <= 0)
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		errx(1, "%s: ``%s must be greater of zero''",
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		    option_source, arg - 1);
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	break;
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    case PRO_FONT:
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	parsefont((struct fstate *) p->p_obj, param_start);
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	break;
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    default:
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	errx(1, "set_option: internal error: p_type %d", p->p_type);
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    }
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}