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| Current File : //usr/src/usr.bin/indent/args.c |
/*
* Copyright (c) 1985 Sun Microsystems, Inc.
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*/
#if 0
#ifndef lint
static char sccsid[] = "@(#)args.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
#endif
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/usr.bin/indent/args.c 205989 2010-03-31 17:05:30Z avg $");
/*
* Argument scanning and profile reading code. Default parameters are set
* here as well.
*/
#include <ctype.h>
#include <err.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "indent_globs.h"
#include "indent.h"
/* profile types */
#define PRO_SPECIAL 1 /* special case */
#define PRO_BOOL 2 /* boolean */
#define PRO_INT 3 /* integer */
#define PRO_FONT 4 /* troff font */
/* profile specials for booleans */
#define ON 1 /* turn it on */
#define OFF 0 /* turn it off */
/* profile specials for specials */
#define IGN 1 /* ignore it */
#define CLI 2 /* case label indent (float) */
#define STDIN 3 /* use stdin */
#define KEY 4 /* type (keyword) */
static void scan_profile(FILE *);
const char *option_source = "?";
/*
* N.B.: because of the way the table here is scanned, options whose names are
* substrings of other options must occur later; that is, with -lp vs -l, -lp
* must be first. Also, while (most) booleans occur more than once, the last
* default value is the one actually assigned.
*/
struct pro {
const char *p_name; /* name, e.g. -bl, -cli */
int p_type; /* type (int, bool, special) */
int p_default; /* the default value (if int) */
int p_special; /* depends on type */
int *p_obj; /* the associated variable */
} pro[] = {
{"T", PRO_SPECIAL, 0, KEY, 0},
{"bacc", PRO_BOOL, false, ON, &blanklines_around_conditional_compilation},
{"badp", PRO_BOOL, false, ON, &blanklines_after_declarations_at_proctop},
{"bad", PRO_BOOL, false, ON, &blanklines_after_declarations},
{"bap", PRO_BOOL, false, ON, &blanklines_after_procs},
{"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments},
{"bc", PRO_BOOL, true, OFF, &ps.leave_comma},
{"bl", PRO_BOOL, true, OFF, &btype_2},
{"br", PRO_BOOL, true, ON, &btype_2},
{"bs", PRO_BOOL, false, ON, &Bill_Shannon},
{"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline},
{"cd", PRO_INT, 0, 0, &ps.decl_com_ind},
{"ce", PRO_BOOL, true, ON, &cuddle_else},
{"ci", PRO_INT, 0, 0, &continuation_indent},
{"cli", PRO_SPECIAL, 0, CLI, 0},
{"c", PRO_INT, 33, 0, &ps.com_ind},
{"di", PRO_INT, 16, 0, &ps.decl_indent},
{"dj", PRO_BOOL, false, ON, &ps.ljust_decl},
{"d", PRO_INT, 0, 0, &ps.unindent_displace},
{"eei", PRO_BOOL, false, ON, &extra_expression_indent},
{"ei", PRO_BOOL, true, ON, &ps.else_if},
{"fbc", PRO_FONT, 0, 0, (int *) &blkcomf},
{"fbs", PRO_BOOL, true, ON, &function_brace_split},
{"fbx", PRO_FONT, 0, 0, (int *) &boxcomf},
{"fb", PRO_FONT, 0, 0, (int *) &bodyf},
{"fc1", PRO_BOOL, true, ON, &format_col1_comments},
{"fcb", PRO_BOOL, true, ON, &format_block_comments},
{"fc", PRO_FONT, 0, 0, (int *) &scomf},
{"fk", PRO_FONT, 0, 0, (int *) &keywordf},
{"fs", PRO_FONT, 0, 0, (int *) &stringf},
{"ip", PRO_BOOL, true, ON, &ps.indent_parameters},
{"i", PRO_INT, 8, 0, &ps.ind_size},
{"lc", PRO_INT, 0, 0, &block_comment_max_col},
{"ldi", PRO_INT, -1, 0, &ps.local_decl_indent},
{"lp", PRO_BOOL, true, ON, &lineup_to_parens},
{"l", PRO_INT, 78, 0, &max_col},
{"nbacc", PRO_BOOL, false, OFF, &blanklines_around_conditional_compilation},
{"nbadp", PRO_BOOL, false, OFF, &blanklines_after_declarations_at_proctop},
{"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations},
{"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs},
{"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments},
{"nbc", PRO_BOOL, true, ON, &ps.leave_comma},
{"nbs", PRO_BOOL, false, OFF, &Bill_Shannon},
{"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},
{"nfbs", PRO_BOOL, true, OFF, &function_brace_split},
{"nfc1", PRO_BOOL, true, OFF, &format_col1_comments},
{"nfcb", PRO_BOOL, true, OFF, &format_block_comments},
{"nip", PRO_BOOL, true, OFF, &ps.indent_parameters},
{"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},
{"ta", PRO_BOOL, false, ON, &auto_typedefs},
{"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}
};
/*
* set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
* given in these files.
*/
void
set_profile(void)
{
FILE *f;
char fname[PATH_MAX];
static char prof[] = ".indent.pro";
snprintf(fname, sizeof(fname), "%s/%s", getenv("HOME"), prof);
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";
}
static void
scan_profile(FILE *f)
{
int comment, i;
char *p;
char buf[BUFSIZ];
while (1) {
p = buf;
comment = 0;
while ((i = getc(f)) != EOF) {
if (i == '*' && !comment && p > buf && p[-1] == '/') {
comment = p - buf;
*p++ = i;
} else if (i == '/' && comment && p > buf && p[-1] == '*') {
p = buf + comment - 1;
comment = 0;
} else if (isspace(i)) {
if (p > buf && !comment)
break;
} else {
*p++ = i;
}
}
if (p != buf) {
*p++ = 0;
if (verbose)
printf("profile: %s\n", buf);
set_option(buf);
}
else if (i == EOF)
return;
}
}
const char *param_start;
static int
eqin(const char *s1, const 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 = strdup(param_start);
if (str == 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(*param_start)) {
need_param:
errx(1, "%s: ``%s'' requires a parameter", option_source, arg - 1);
}
*p->p_obj = atoi(param_start);
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);
}
}