2.11BSD/src/ucb/indent/args.c
/*
* Copyright (c) 1980 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#ifndef lint
static char sccsid[] = "@(#)args.c 5.2 (Berkeley) 9/10/85";
#endif not lint
/*
* Argument scanning and profile reading code. Default parameters
* are set here as well.
*/
#include "indent_globs.h"
#include <sys/types.h>
#include <ctype.h>
char *getenv(), *index();
/* profile types */
#define PRO_SPECIAL 1 /* special case */
#define PRO_BOOL 2 /* boolean */
#define PRO_INT 3 /* integer */
/* 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) */
/*
* 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[] = {
"npro", PRO_SPECIAL, 0, IGN, 0,
"lc", PRO_INT, 0, 0, &block_comment_max_col,
"lp", PRO_BOOL, true, ON, &lineup_to_parens,
"nlp", PRO_BOOL, true, OFF, &lineup_to_parens,
"l", PRO_INT, 78, 0, &max_col,
"psl", PRO_BOOL, true, ON, &procnames_start_line,
"npsl", PRO_BOOL, true, OFF, &procnames_start_line,
"fc1", PRO_BOOL, true, ON, &format_col1_comments,
"nfc1", PRO_BOOL, true, OFF, &format_col1_comments,
"pcs", PRO_BOOL, false, ON, &proc_calls_space,
"npcs", PRO_BOOL, false, OFF, &proc_calls_space,
"ip", PRO_BOOL, true, ON, &ps.indent_parameters,
"nip", PRO_BOOL, true, OFF, &ps.indent_parameters,
/* see set_defaults for initialization of -cli */
"cli", PRO_SPECIAL, 0, CLI, 0,
"ci", PRO_INT, 0, 0, &continuation_indent,
"cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline,
"ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline,
"i", PRO_INT, 8, 0, &ps.ind_size,
"cd", PRO_INT, 0, 0, &ps.decl_com_ind,
"ce", PRO_BOOL, true, ON, &cuddle_else,
"nce", PRO_BOOL, true, OFF, &cuddle_else,
"c", PRO_INT, 33, 0, &ps.com_ind,
"v", PRO_BOOL, false, ON, &verbose,
"nv", PRO_BOOL, false, OFF, &verbose,
"dj", PRO_BOOL, false, ON, &ps.ljust_decl,
"ndj", PRO_BOOL, false, OFF, &ps.ljust_decl,
/* don't ask *me* why -bc/-nbc is backwards.... */
"bc", PRO_BOOL, true, OFF, &ps.leave_comma,
"nbc", PRO_BOOL, true, ON, &ps.leave_comma,
"di", PRO_INT, 16, 0, &ps.decl_indent,
"d", PRO_INT, 0, 0, &ps.unindent_displace,
"br", PRO_BOOL, true, ON, &btype_2,
"bl", PRO_BOOL, true, OFF, &btype_2,
"st", PRO_SPECIAL, 0, STDIN, 0,
"ei", PRO_BOOL, true, ON, &ps.else_if,
"nei", PRO_BOOL, true, OFF, &ps.else_if,
"sc", PRO_BOOL, true, ON, &star_comment_cont,
"nsc", PRO_BOOL, true, OFF, &star_comment_cont,
"bap", PRO_BOOL, false, ON, &blanklines_after_procs,
"nbap", PRO_BOOL, false, OFF, &blanklines_after_procs,
"sob", PRO_BOOL, false, ON, &swallow_optional_blanklines,
"nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines,
"bad", PRO_BOOL, false, ON, &blanklines_after_declarations,
"nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations,
"bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments,
"nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments,
"ps", PRO_BOOL, false, ON, &pointer_as_binop,
"nps", PRO_BOOL, false, OFF, &pointer_as_binop,
"troff", PRO_BOOL, false, ON, &troff,
"T", PRO_SPECIAL, 0, KEY, 0,
/* whew! */
0, 0, 0, 0, 0
};
/*
* set_profile reads $HOME/.indent.pro and ./.indent.pro and
* handles arguments given in these files.
*/
set_profile()
{
register FILE *f;
char fname[BUFSIZ];
static char pro[] = ".indent.pro";
sprintf(fname, "%s/%s", getenv("HOME"), pro);
if ((f = fopen(fname, "r")) != NULL) {
scan_profile(f);
(void) fclose(f);
}
if ((f = fopen(pro, "r")) != NULL) {
scan_profile(f);
(void) fclose(f);
}
}
scan_profile(f)
register FILE *f;
{
register char *p, *arg;
char buf[BUFSIZ];
while (fgets(buf, sizeof buf, f)) {
if ((p = index(buf, '\n')) != NULL)
*p = 0;
if (verbose)
printf("profile: %s\n", buf);
p = buf;
for (;;) {
while (isspace(*p))
p++;
if (*p == 0)
break;
arg = p;
while (*p) {
if (isspace(*p)) {
*p++ = 0;
break;
}
p++;
}
set_option(arg);
}
}
}
char *param_start;
eqin(s1, s2)
register char *s1;
register char *s2;
{
while (*s1) {
if (*s1++ != *s2++)
return (false);
}
param_start = s2;
return (true);
}
/*
* Set the defaults.
*/
set_defaults()
{
register 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_obj = p->p_default;
}
set_option(arg)
register char *arg;
{
register struct pro *p;
extern double atof();
arg++; /* ignore leading "-" */
for (p = pro; p->p_name; p++)
if (*p->p_name == *arg && eqin(p->p_name, arg))
goto found;
fprintf(stderr, "indent: unknown parameter \"%s\"\n", arg - 1);
exit(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;
addkey(param_start, 4);
break;
default:
fprintf(stderr, "\
indent: set_option: internal error: p_special %d\n", p->p_special);
exit(1);
}
break;
case PRO_BOOL:
if (p->p_special == OFF)
*p->p_obj = false;
else
*p->p_obj = true;
break;
case PRO_INT:
if (*param_start == 0) {
need_param:
fprintf(stderr, "indent: ``%s'' requires a parameter\n",
arg - 1);
exit(1);
}
*p->p_obj = atoi(param_start);
break;
default:
fprintf(stderr, "indent: set_option: internal error: p_type %d\n",
p->p_type);
exit(1);
}
}