449 lines
11 KiB
C
449 lines
11 KiB
C
/* $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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{
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"T", PRO_SPECIAL, 0, KEY, 0
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},
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{
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"bacc", PRO_BOOL, false, ON,
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&blanklines_around_conditional_compilation
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},
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{
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"badp", PRO_BOOL, false, ON,
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&blanklines_after_declarations_at_proctop
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},
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{
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"bad", PRO_BOOL, false, ON, &blanklines_after_declarations
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},
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{
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"bap", PRO_BOOL, false, ON, &blanklines_after_procs
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},
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{
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"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments
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},
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{
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"bc", PRO_BOOL, true, OFF, &ps.leave_comma
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},
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{
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"bl", PRO_BOOL, true, OFF, &btype_2
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},
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{
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"br", PRO_BOOL, true, ON, &btype_2
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},
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{
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"bs", PRO_BOOL, false, ON, &Bill_Shannon
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},
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{
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"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline
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},
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{
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"cd", PRO_INT, 0, 0, &ps.decl_com_ind
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},
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{
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"ce", PRO_BOOL, true, ON, &cuddle_else
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},
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{
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"ci", PRO_INT, 0, 0, &continuation_indent
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},
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{
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"cli", PRO_SPECIAL, 0, CLI, 0
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},
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{
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"c", PRO_INT, 33, 0, &ps.com_ind
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},
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{
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"di", PRO_INT, 16, 0, &ps.decl_indent
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},
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{
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"dj", PRO_BOOL, false, ON, &ps.ljust_decl
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},
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{
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"d", PRO_INT, 0, 0, &ps.unindent_displace
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},
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{
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"eei", PRO_BOOL, false, ON, &extra_expression_indent
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},
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{
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"ei", PRO_BOOL, true, ON, &ps.else_if
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},
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{
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"fbc", PRO_FONT, 0, 0, (int *) &blkcomf
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},
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{
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"fbx", PRO_FONT, 0, 0, (int *) &boxcomf
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},
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{
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"fb", PRO_FONT, 0, 0, (int *) &bodyf
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},
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{
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"fc1", PRO_BOOL, true, ON, &format_col1_comments
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},
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{
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"fc", PRO_FONT, 0, 0, (int *) &scomf
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},
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{
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"fk", PRO_FONT, 0, 0, (int *) &keywordf
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},
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{
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"fs", PRO_FONT, 0, 0, (int *) &stringf
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},
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{
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"ip", PRO_BOOL, true, ON, &ps.indent_parameters
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},
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{
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"i", PRO_INT, 8, 0, &ps.ind_size
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},
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{
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"lc", PRO_INT, 0, 0, &block_comment_max_col
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},
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{
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"lp", PRO_BOOL, true, ON, &lineup_to_parens
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},
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{
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"l", PRO_INT, 78, 0, &max_col
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},
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{
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"nbacc", PRO_BOOL, false, OFF,
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&blanklines_around_conditional_compilation
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},
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{
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"nbadp", PRO_BOOL, false, OFF,
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&blanklines_after_declarations_at_proctop
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},
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{
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"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations
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},
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{
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"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs
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},
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{
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"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments
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},
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{
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"nbc", PRO_BOOL, true, ON, &ps.leave_comma
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},
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{
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"nbs", PRO_BOOL, false, OFF, &Bill_Shannon
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},
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{
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"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline
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},
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{
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"nce", PRO_BOOL, true, OFF, &cuddle_else
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},
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{
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"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl
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},
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{
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"neei", PRO_BOOL, false, OFF, &extra_expression_indent
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},
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{
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"nei", PRO_BOOL, true, OFF, &ps.else_if
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},
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{
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"nfc1", PRO_BOOL, true, OFF, &format_col1_comments
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},
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{
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"nip", PRO_BOOL, true, OFF, &ps.indent_parameters
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},
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{
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"nlp", PRO_BOOL, true, OFF, &lineup_to_parens
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},
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{
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"npcs", PRO_BOOL, false, OFF, &proc_calls_space
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},
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{
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"npro", PRO_SPECIAL, 0, IGN, 0
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},
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{
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"npsl", PRO_BOOL, true, OFF, &procnames_start_line
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},
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{
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"nps", PRO_BOOL, false, OFF, &pointer_as_binop
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},
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{
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"nsc", PRO_BOOL, true, OFF, &star_comment_cont
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},
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{
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"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines
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},
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{
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"nut", PRO_BOOL, true, OFF, &use_tabs
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},
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{
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"nv", PRO_BOOL, false, OFF, &verbose
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},
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{
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"pcs", PRO_BOOL, false, ON, &proc_calls_space
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},
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{
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"psl", PRO_BOOL, true, ON, &procnames_start_line
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},
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{
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"ps", PRO_BOOL, false, ON, &pointer_as_binop
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},
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{
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"sc", PRO_BOOL, true, ON, &star_comment_cont
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},
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{
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"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines
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},
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{
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"st", PRO_SPECIAL, 0, STDIN, 0
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},
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{
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"troff", PRO_BOOL, false, ON, &troff
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},
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{
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"ut", PRO_BOOL, true, ON, &use_tabs
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},
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{
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"v", PRO_BOOL, false, ON, &verbose
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},
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/* whew! */
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{
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0, 0, 0, 0, 0
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}
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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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#if defined(__linux__)
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printf("%s/%s", home, prof);
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//FIXIT
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#else
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warnc(ENAMETOOLONG, "%s/%s", home, prof);
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#endif
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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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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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} 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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}
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