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- /*
- * Copyright (c) 1980 Regents of the University of California.
- * Copyright (c) 1976 Board of Trustees of the University of Illinois.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms are permitted
- * provided that this notice is preserved and that due credit is given
- * to the University of California at Berkeley and the University of
- * Illinois at Urbana. The name of either University may not be used
- * to endorse or promote products derived from this software without
- * specific prior written permission. This software is provided
- * ``as is'' without express or implied warranty.
- */
-
- #ifndef lint
- static char sccsid[] = "@(#)args.c 5.3 (Berkeley) 3/22/88";
- #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);
- }
- }
-