Annotation of src/usr.bin/indent/args.c, Revision 1.1
1.1 ! deraadt 1: /*
! 2: * Copyright (c) 1985 Sun Microsystems, Inc.
! 3: * Copyright (c) 1980 The Regents of the University of California.
! 4: * Copyright (c) 1976 Board of Trustees of the University of Illinois.
! 5: * All rights reserved.
! 6: *
! 7: * Redistribution and use in source and binary forms, with or without
! 8: * modification, are permitted provided that the following conditions
! 9: * are met:
! 10: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: * 3. All advertising materials mentioning features or use of this software
! 16: * must display the following acknowledgement:
! 17: * This product includes software developed by the University of
! 18: * California, Berkeley and its contributors.
! 19: * 4. Neither the name of the University nor the names of its contributors
! 20: * may be used to endorse or promote products derived from this software
! 21: * without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 33: * SUCH DAMAGE.
! 34: */
! 35:
! 36: #ifndef lint
! 37: /*static char sccsid[] = "from: @(#)args.c 5.10 (Berkeley) 2/26/91";*/
! 38: static char rcsid[] = "$Id: args.c,v 1.2 1993/08/01 18:14:36 mycroft Exp $";
! 39: #endif /* not lint */
! 40:
! 41: /*
! 42: * Argument scanning and profile reading code. Default parameters are set
! 43: * here as well.
! 44: */
! 45:
! 46: #include <stdio.h>
! 47: #include <ctype.h>
! 48: #include <stdlib.h>
! 49: #include <string.h>
! 50: #include "indent_globs.h"
! 51:
! 52: /* profile types */
! 53: #define PRO_SPECIAL 1 /* special case */
! 54: #define PRO_BOOL 2 /* boolean */
! 55: #define PRO_INT 3 /* integer */
! 56: #define PRO_FONT 4 /* troff font */
! 57:
! 58: /* profile specials for booleans */
! 59: #define ON 1 /* turn it on */
! 60: #define OFF 0 /* turn it off */
! 61:
! 62: /* profile specials for specials */
! 63: #define IGN 1 /* ignore it */
! 64: #define CLI 2 /* case label indent (float) */
! 65: #define STDIN 3 /* use stdin */
! 66: #define KEY 4 /* type (keyword) */
! 67:
! 68: char *option_source = "?";
! 69:
! 70: /*
! 71: * N.B.: because of the way the table here is scanned, options whose names are
! 72: * substrings of other options must occur later; that is, with -lp vs -l, -lp
! 73: * must be first. Also, while (most) booleans occur more than once, the last
! 74: * default value is the one actually assigned.
! 75: */
! 76: struct pro {
! 77: char *p_name; /* name, eg -bl, -cli */
! 78: int p_type; /* type (int, bool, special) */
! 79: int p_default; /* the default value (if int) */
! 80: int p_special; /* depends on type */
! 81: int *p_obj; /* the associated variable */
! 82: } pro[] = {
! 83:
! 84: "T", PRO_SPECIAL, 0, KEY, 0,
! 85: "bacc", PRO_BOOL, false, ON, &blanklines_around_conditional_compilation,
! 86: "badp", PRO_BOOL, false, ON, &blanklines_after_declarations_at_proctop,
! 87: "bad", PRO_BOOL, false, ON, &blanklines_after_declarations,
! 88: "bap", PRO_BOOL, false, ON, &blanklines_after_procs,
! 89: "bbb", PRO_BOOL, false, ON, &blanklines_before_blockcomments,
! 90: "bc", PRO_BOOL, true, OFF, &ps.leave_comma,
! 91: "bl", PRO_BOOL, true, OFF, &btype_2,
! 92: "br", PRO_BOOL, true, ON, &btype_2,
! 93: "bs", PRO_BOOL, false, ON, &Bill_Shannon,
! 94: "cdb", PRO_BOOL, true, ON, &comment_delimiter_on_blankline,
! 95: "cd", PRO_INT, 0, 0, &ps.decl_com_ind,
! 96: "ce", PRO_BOOL, true, ON, &cuddle_else,
! 97: "ci", PRO_INT, 0, 0, &continuation_indent,
! 98: "cli", PRO_SPECIAL, 0, CLI, 0,
! 99: "c", PRO_INT, 33, 0, &ps.com_ind,
! 100: "di", PRO_INT, 16, 0, &ps.decl_indent,
! 101: "dj", PRO_BOOL, false, ON, &ps.ljust_decl,
! 102: "d", PRO_INT, 0, 0, &ps.unindent_displace,
! 103: "eei", PRO_BOOL, false, ON, &extra_expression_indent,
! 104: "ei", PRO_BOOL, true, ON, &ps.else_if,
! 105: "fbc", PRO_FONT, 0, 0, (int *) &blkcomf,
! 106: "fbx", PRO_FONT, 0, 0, (int *) &boxcomf,
! 107: "fb", PRO_FONT, 0, 0, (int *) &bodyf,
! 108: "fc1", PRO_BOOL, true, ON, &format_col1_comments,
! 109: "fc", PRO_FONT, 0, 0, (int *) &scomf,
! 110: "fk", PRO_FONT, 0, 0, (int *) &keywordf,
! 111: "fs", PRO_FONT, 0, 0, (int *) &stringf,
! 112: "ip", PRO_BOOL, true, ON, &ps.indent_parameters,
! 113: "i", PRO_INT, 8, 0, &ps.ind_size,
! 114: "lc", PRO_INT, 0, 0, &block_comment_max_col,
! 115: "lp", PRO_BOOL, true, ON, &lineup_to_parens,
! 116: "l", PRO_INT, 78, 0, &max_col,
! 117: "nbacc", PRO_BOOL, false, OFF, &blanklines_around_conditional_compilation,
! 118: "nbadp", PRO_BOOL, false, OFF, &blanklines_after_declarations_at_proctop,
! 119: "nbad", PRO_BOOL, false, OFF, &blanklines_after_declarations,
! 120: "nbap", PRO_BOOL, false, OFF, &blanklines_after_procs,
! 121: "nbbb", PRO_BOOL, false, OFF, &blanklines_before_blockcomments,
! 122: "nbc", PRO_BOOL, true, ON, &ps.leave_comma,
! 123: "nbs", PRO_BOOL, false, OFF, &Bill_Shannon,
! 124: "ncdb", PRO_BOOL, true, OFF, &comment_delimiter_on_blankline,
! 125: "nce", PRO_BOOL, true, OFF, &cuddle_else,
! 126: "ndj", PRO_BOOL, false, OFF, &ps.ljust_decl,
! 127: "neei", PRO_BOOL, false, OFF, &extra_expression_indent,
! 128: "nei", PRO_BOOL, true, OFF, &ps.else_if,
! 129: "nfc1", PRO_BOOL, true, OFF, &format_col1_comments,
! 130: "nip", PRO_BOOL, true, OFF, &ps.indent_parameters,
! 131: "nlp", PRO_BOOL, true, OFF, &lineup_to_parens,
! 132: "npcs", PRO_BOOL, false, OFF, &proc_calls_space,
! 133: "npro", PRO_SPECIAL, 0, IGN, 0,
! 134: "npsl", PRO_BOOL, true, OFF, &procnames_start_line,
! 135: "nps", PRO_BOOL, false, OFF, &pointer_as_binop,
! 136: "nsc", PRO_BOOL, true, OFF, &star_comment_cont,
! 137: "nsob", PRO_BOOL, false, OFF, &swallow_optional_blanklines,
! 138: "nv", PRO_BOOL, false, OFF, &verbose,
! 139: "pcs", PRO_BOOL, false, ON, &proc_calls_space,
! 140: "psl", PRO_BOOL, true, ON, &procnames_start_line,
! 141: "ps", PRO_BOOL, false, ON, &pointer_as_binop,
! 142: "sc", PRO_BOOL, true, ON, &star_comment_cont,
! 143: "sob", PRO_BOOL, false, ON, &swallow_optional_blanklines,
! 144: "st", PRO_SPECIAL, 0, STDIN, 0,
! 145: "troff", PRO_BOOL, false, ON, &troff,
! 146: "v", PRO_BOOL, false, ON, &verbose,
! 147: /* whew! */
! 148: 0, 0, 0, 0, 0
! 149: };
! 150:
! 151: /*
! 152: * set_profile reads $HOME/.indent.pro and ./.indent.pro and handles arguments
! 153: * given in these files.
! 154: */
! 155: set_profile()
! 156: {
! 157: register FILE *f;
! 158: char fname[BUFSIZ];
! 159: static char prof[] = ".indent.pro";
! 160:
! 161: sprintf(fname, "%s/%s", getenv("HOME"), prof);
! 162: if ((f = fopen(option_source = fname, "r")) != NULL) {
! 163: scan_profile(f);
! 164: (void) fclose(f);
! 165: }
! 166: if ((f = fopen(option_source = prof, "r")) != NULL) {
! 167: scan_profile(f);
! 168: (void) fclose(f);
! 169: }
! 170: option_source = "Command line";
! 171: }
! 172:
! 173: scan_profile(f)
! 174: register FILE *f;
! 175: {
! 176: register int i;
! 177: register char *p;
! 178: char buf[BUFSIZ];
! 179:
! 180: while (1) {
! 181: for (p = buf; (i = getc(f)) != EOF && (*p = i) > ' '; ++p);
! 182: if (p != buf) {
! 183: *p++ = 0;
! 184: if (verbose)
! 185: printf("profile: %s\n", buf);
! 186: set_option(buf);
! 187: }
! 188: else if (i == EOF)
! 189: return;
! 190: }
! 191: }
! 192:
! 193: char *param_start;
! 194:
! 195: eqin(s1, s2)
! 196: register char *s1;
! 197: register char *s2;
! 198: {
! 199: while (*s1) {
! 200: if (*s1++ != *s2++)
! 201: return (false);
! 202: }
! 203: param_start = s2;
! 204: return (true);
! 205: }
! 206:
! 207: /*
! 208: * Set the defaults.
! 209: */
! 210: set_defaults()
! 211: {
! 212: register struct pro *p;
! 213:
! 214: /*
! 215: * Because ps.case_indent is a float, we can't initialize it from the
! 216: * table:
! 217: */
! 218: ps.case_indent = 0.0; /* -cli0.0 */
! 219: for (p = pro; p->p_name; p++)
! 220: if (p->p_type != PRO_SPECIAL && p->p_type != PRO_FONT)
! 221: *p->p_obj = p->p_default;
! 222: }
! 223:
! 224: set_option(arg)
! 225: register char *arg;
! 226: {
! 227: register struct pro *p;
! 228: extern double atof();
! 229:
! 230: arg++; /* ignore leading "-" */
! 231: for (p = pro; p->p_name; p++)
! 232: if (*p->p_name == *arg && eqin(p->p_name, arg))
! 233: goto found;
! 234: fprintf(stderr, "indent: %s: unknown parameter \"%s\"\n", option_source, arg - 1);
! 235: exit(1);
! 236: found:
! 237: switch (p->p_type) {
! 238:
! 239: case PRO_SPECIAL:
! 240: switch (p->p_special) {
! 241:
! 242: case IGN:
! 243: break;
! 244:
! 245: case CLI:
! 246: if (*param_start == 0)
! 247: goto need_param;
! 248: ps.case_indent = atof(param_start);
! 249: break;
! 250:
! 251: case STDIN:
! 252: if (input == 0)
! 253: input = stdin;
! 254: if (output == 0)
! 255: output = stdout;
! 256: break;
! 257:
! 258: case KEY:
! 259: if (*param_start == 0)
! 260: goto need_param;
! 261: {
! 262: register char *str = (char *) malloc(strlen(param_start) + 1);
! 263: strcpy(str, param_start);
! 264: addkey(str, 4);
! 265: }
! 266: break;
! 267:
! 268: default:
! 269: fprintf(stderr, "\
! 270: indent: set_option: internal error: p_special %d\n", p->p_special);
! 271: exit(1);
! 272: }
! 273: break;
! 274:
! 275: case PRO_BOOL:
! 276: if (p->p_special == OFF)
! 277: *p->p_obj = false;
! 278: else
! 279: *p->p_obj = true;
! 280: break;
! 281:
! 282: case PRO_INT:
! 283: if (!isdigit(*param_start)) {
! 284: need_param:
! 285: fprintf(stderr, "indent: %s: ``%s'' requires a parameter\n",
! 286: option_source, arg - 1);
! 287: exit(1);
! 288: }
! 289: *p->p_obj = atoi(param_start);
! 290: break;
! 291:
! 292: case PRO_FONT:
! 293: parsefont((struct fstate *) p->p_obj, param_start);
! 294: break;
! 295:
! 296: default:
! 297: fprintf(stderr, "indent: set_option: internal error: p_type %d\n",
! 298: p->p_type);
! 299: exit(1);
! 300: }
! 301: }
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