File: [local] / src / usr.bin / indent / args.c (download)
Revision 1.9, Sat Feb 16 21:27:47 2002 UTC (22 years, 3 months ago) by millert
Branch: MAIN
CVS Tags: OPENBSD_3_2_BASE, OPENBSD_3_2, OPENBSD_3_1_BASE, OPENBSD_3_1 Changes since 1.8: +4 -4 lines
Part one of userland __P removal. Done with a simple regexp with some minor hand editing to make comments line up correctly. Another pass is forthcoming that handles the cases that could not be done automatically.
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/* $OpenBSD: args.c,v 1.9 2002/02/16 21:27:47 millert 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. 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.
*/
#ifndef lint
/*static char sccsid[] = "@(#)args.c 8.1 (Berkeley) 6/6/93";*/
static char rcsid[] = "$OpenBSD: args.c,v 1.9 2002/02/16 21:27:47 millert Exp $";
#endif /* not lint */
/*
* Argument scanning and profile reading code. Default parameters are set
* here as well.
*/
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "indent_globs.h"
#include <err.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) */
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 {
char *p_name; /* name, eg -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 },
{"fbx", PRO_FONT, 0, 0, (int *) &boxcomf },
{"fb", PRO_FONT, 0, 0, (int *) &bodyf },
{"fc1", PRO_BOOL, true, ON, &format_col1_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 },
{"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 },
{"nfc1", PRO_BOOL, true, OFF, &format_col1_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 },
{"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 },
{"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()
{
FILE *f;
char fname[BUFSIZ];
char *home;
static char prof[] = ".indent.pro";
home = getenv("HOME");
if (home != NULL && *home != '\0') {
if (strlen(home) + sizeof(prof) + 1 > sizeof(fname)) {
warnx("%s/%s: %s", home, prof, strerror(ENAMETOOLONG));
return;
}
sprintf(fname, "%s/%s", 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";
}
void
scan_profile(f)
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(s1, s2)
char *s1;
char *s2;
{
while (*s1) {
if (*s1++ != *s2++)
return (false);
}
param_start = s2;
return (true);
}
/*
* Set the defaults.
*/
void
set_defaults()
{
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(arg)
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(*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);
}
}