1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1985 Sun Microsystems, Inc. 5 * Copyright (c) 1976 Board of Trustees of the University of Illinois. 6 * Copyright (c) 1980, 1993 7 * The Regents of the University of California. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by the University of 20 * California, Berkeley and its contributors. 21 * 4. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 */ 37 38 #ifndef lint 39 static const char copyright[] = 40 "@(#) Copyright (c) 1985 Sun Microsystems, Inc.\n\ 41 @(#) Copyright (c) 1976 Board of Trustees of the University of Illinois.\n\ 42 @(#) Copyright (c) 1980, 1993\n\ 43 The Regents of the University of California. All rights reserved.\n"; 44 #endif /* not lint */ 45 46 #if 0 47 #ifndef lint 48 static char sccsid[] = "@(#)indent.c 5.17 (Berkeley) 6/7/93"; 49 #endif /* not lint */ 50 #endif 51 52 #include <sys/cdefs.h> 53 __FBSDID("$FreeBSD$"); 54 55 #include <sys/param.h> 56 #include <sys/capsicum.h> 57 #include <err.h> 58 #include <errno.h> 59 #include <fcntl.h> 60 #include <unistd.h> 61 #include <stdio.h> 62 #include <stdlib.h> 63 #include <string.h> 64 #include <ctype.h> 65 #include "indent_globs.h" 66 #include "indent_codes.h" 67 #include "indent.h" 68 69 static void bakcopy(void); 70 static void indent_declaration(int, int); 71 72 const char *in_name = "Standard Input"; /* will always point to name of input 73 * file */ 74 const char *out_name = "Standard Output"; /* will always point to name 75 * of output file */ 76 const char *simple_backup_suffix = ".BAK"; /* Suffix to use for backup 77 * files */ 78 char bakfile[MAXPATHLEN] = ""; 79 80 int 81 main(int argc, char **argv) 82 { 83 cap_rights_t rights; 84 85 int dec_ind; /* current indentation for declarations */ 86 int di_stack[20]; /* a stack of structure indentation levels */ 87 int force_nl; /* when true, code must be broken */ 88 int hd_type = 0; /* used to store type of stmt for if (...), 89 * for (...), etc */ 90 int i; /* local loop counter */ 91 int scase; /* set to true when we see a case, so we will 92 * know what to do with the following colon */ 93 int sp_sw; /* when true, we are in the expression of 94 * if(...), while(...), etc. */ 95 int squest; /* when this is positive, we have seen a ? 96 * without the matching : in a <c>?<s>:<s> 97 * construct */ 98 const char *t_ptr; /* used for copying tokens */ 99 int tabs_to_var; /* true if using tabs to indent to var name */ 100 int type_code; /* the type of token, returned by lexi */ 101 102 int last_else = 0; /* true iff last keyword was an else */ 103 const char *profile_name = NULL; 104 const char *envval = NULL; 105 struct parser_state transient_state; /* a copy for lookup */ 106 107 /*-----------------------------------------------*\ 108 | INITIALIZATION | 109 \*-----------------------------------------------*/ 110 111 found_err = 0; 112 113 ps.p_stack[0] = stmt; /* this is the parser's stack */ 114 ps.last_nl = true; /* this is true if the last thing scanned was 115 * a newline */ 116 ps.last_token = semicolon; 117 combuf = (char *) malloc(bufsize); 118 if (combuf == NULL) 119 err(1, NULL); 120 labbuf = (char *) malloc(bufsize); 121 if (labbuf == NULL) 122 err(1, NULL); 123 codebuf = (char *) malloc(bufsize); 124 if (codebuf == NULL) 125 err(1, NULL); 126 tokenbuf = (char *) malloc(bufsize); 127 if (tokenbuf == NULL) 128 err(1, NULL); 129 alloc_typenames(); 130 l_com = combuf + bufsize - 5; 131 l_lab = labbuf + bufsize - 5; 132 l_code = codebuf + bufsize - 5; 133 l_token = tokenbuf + bufsize - 5; 134 combuf[0] = codebuf[0] = labbuf[0] = ' '; /* set up code, label, and 135 * comment buffers */ 136 combuf[1] = codebuf[1] = labbuf[1] = '\0'; 137 ps.else_if = 1; /* Default else-if special processing to on */ 138 s_lab = e_lab = labbuf + 1; 139 s_code = e_code = codebuf + 1; 140 s_com = e_com = combuf + 1; 141 s_token = e_token = tokenbuf + 1; 142 143 in_buffer = (char *) malloc(10); 144 if (in_buffer == NULL) 145 err(1, NULL); 146 in_buffer_limit = in_buffer + 8; 147 buf_ptr = buf_end = in_buffer; 148 line_no = 1; 149 had_eof = ps.in_decl = ps.decl_on_line = break_comma = false; 150 sp_sw = force_nl = false; 151 ps.in_or_st = false; 152 ps.bl_line = true; 153 dec_ind = 0; 154 di_stack[ps.dec_nest = 0] = 0; 155 ps.want_blank = ps.in_stmt = ps.ind_stmt = false; 156 157 scase = ps.pcase = false; 158 squest = 0; 159 sc_end = NULL; 160 bp_save = NULL; 161 be_save = NULL; 162 163 output = NULL; 164 tabs_to_var = 0; 165 166 envval = getenv("SIMPLE_BACKUP_SUFFIX"); 167 if (envval) 168 simple_backup_suffix = envval; 169 170 /*--------------------------------------------------*\ 171 | COMMAND LINE SCAN | 172 \*--------------------------------------------------*/ 173 174 #ifdef undef 175 max_col = 78; /* -l78 */ 176 lineup_to_parens = 1; /* -lp */ 177 ps.ljust_decl = 0; /* -ndj */ 178 ps.com_ind = 33; /* -c33 */ 179 star_comment_cont = 1; /* -sc */ 180 ps.ind_size = 8; /* -i8 */ 181 verbose = 0; 182 ps.decl_indent = 16; /* -di16 */ 183 ps.local_decl_indent = -1; /* if this is not set to some nonnegative value 184 * by an arg, we will set this equal to 185 * ps.decl_ind */ 186 ps.indent_parameters = 1; /* -ip */ 187 ps.decl_com_ind = 0; /* if this is not set to some positive value 188 * by an arg, we will set this equal to 189 * ps.com_ind */ 190 btype_2 = 1; /* -br */ 191 cuddle_else = 1; /* -ce */ 192 ps.unindent_displace = 0; /* -d0 */ 193 ps.case_indent = 0; /* -cli0 */ 194 format_block_comments = 1; /* -fcb */ 195 format_col1_comments = 1; /* -fc1 */ 196 procnames_start_line = 1; /* -psl */ 197 proc_calls_space = 0; /* -npcs */ 198 comment_delimiter_on_blankline = 1; /* -cdb */ 199 ps.leave_comma = 1; /* -nbc */ 200 #endif 201 202 for (i = 1; i < argc; ++i) 203 if (strcmp(argv[i], "-npro") == 0) 204 break; 205 else if (argv[i][0] == '-' && argv[i][1] == 'P' && argv[i][2] != '\0') 206 profile_name = argv[i]; /* non-empty -P (set profile) */ 207 set_defaults(); 208 if (i >= argc) 209 set_profile(profile_name); 210 211 for (i = 1; i < argc; ++i) { 212 213 /* 214 * look thru args (if any) for changes to defaults 215 */ 216 if (argv[i][0] != '-') {/* no flag on parameter */ 217 if (input == NULL) { /* we must have the input file */ 218 in_name = argv[i]; /* remember name of input file */ 219 input = fopen(in_name, "r"); 220 if (input == NULL) /* check for open error */ 221 err(1, "%s", in_name); 222 continue; 223 } 224 else if (output == NULL) { /* we have the output file */ 225 out_name = argv[i]; /* remember name of output file */ 226 if (strcmp(in_name, out_name) == 0) { /* attempt to overwrite 227 * the file */ 228 errx(1, "input and output files must be different"); 229 } 230 output = fopen(out_name, "w"); 231 if (output == NULL) /* check for create error */ 232 err(1, "%s", out_name); 233 continue; 234 } 235 errx(1, "unknown parameter: %s", argv[i]); 236 } 237 else 238 set_option(argv[i]); 239 } /* end of for */ 240 if (input == NULL) 241 input = stdin; 242 if (output == NULL) { 243 if (troff || input == stdin) 244 output = stdout; 245 else { 246 out_name = in_name; 247 bakcopy(); 248 } 249 } 250 251 /* Restrict input/output descriptors and enter Capsicum sandbox. */ 252 cap_rights_init(&rights, CAP_FSTAT, CAP_WRITE); 253 if (cap_rights_limit(fileno(output), &rights) < 0 && errno != ENOSYS) 254 err(EXIT_FAILURE, "unable to limit rights for %s", out_name); 255 cap_rights_init(&rights, CAP_FSTAT, CAP_READ); 256 if (cap_rights_limit(fileno(input), &rights) < 0 && errno != ENOSYS) 257 err(EXIT_FAILURE, "unable to limit rights for %s", in_name); 258 if (cap_enter() < 0 && errno != ENOSYS) 259 err(EXIT_FAILURE, "unable to enter capability mode"); 260 261 if (ps.com_ind <= 1) 262 ps.com_ind = 2; /* dont put normal comments before column 2 */ 263 if (troff) { 264 if (bodyf.font[0] == 0) 265 parsefont(&bodyf, "R"); 266 if (scomf.font[0] == 0) 267 parsefont(&scomf, "I"); 268 if (blkcomf.font[0] == 0) 269 blkcomf = scomf, blkcomf.size += 2; 270 if (boxcomf.font[0] == 0) 271 boxcomf = blkcomf; 272 if (stringf.font[0] == 0) 273 parsefont(&stringf, "L"); 274 if (keywordf.font[0] == 0) 275 parsefont(&keywordf, "B"); 276 writefdef(&bodyf, 'B'); 277 writefdef(&scomf, 'C'); 278 writefdef(&blkcomf, 'L'); 279 writefdef(&boxcomf, 'X'); 280 writefdef(&stringf, 'S'); 281 writefdef(&keywordf, 'K'); 282 } 283 if (block_comment_max_col <= 0) 284 block_comment_max_col = max_col; 285 if (ps.local_decl_indent < 0) /* if not specified by user, set this */ 286 ps.local_decl_indent = ps.decl_indent; 287 if (ps.decl_com_ind <= 0) /* if not specified by user, set this */ 288 ps.decl_com_ind = ps.ljust_decl ? (ps.com_ind <= 10 ? 2 : ps.com_ind - 8) : ps.com_ind; 289 if (continuation_indent == 0) 290 continuation_indent = ps.ind_size; 291 fill_buffer(); /* get first batch of stuff into input buffer */ 292 293 parse(semicolon); 294 { 295 char *p = buf_ptr; 296 int col = 1; 297 298 while (1) { 299 if (*p == ' ') 300 col++; 301 else if (*p == '\t') 302 col = tabsize * (1 + (col - 1) / tabsize) + 1; 303 else 304 break; 305 p++; 306 } 307 if (col > ps.ind_size) 308 ps.ind_level = ps.i_l_follow = col / ps.ind_size; 309 } 310 if (troff) { 311 const char *p = in_name, 312 *beg = in_name; 313 314 while (*p) 315 if (*p++ == '/') 316 beg = p; 317 fprintf(output, ".Fn \"%s\"\n", beg); 318 } 319 /* 320 * START OF MAIN LOOP 321 */ 322 323 while (1) { /* this is the main loop. it will go until we 324 * reach eof */ 325 int comment_buffered = false; 326 327 type_code = lexi(&ps); /* lexi reads one token. The actual 328 * characters read are stored in "token". lexi 329 * returns a code indicating the type of token */ 330 331 /* 332 * The following code moves newlines and comments following an if (), 333 * while (), else, etc. up to the start of the following stmt to 334 * a buffer. This allows proper handling of both kinds of brace 335 * placement (-br, -bl) and cuddling "else" (-ce). 336 */ 337 338 while (ps.search_brace) { 339 switch (type_code) { 340 case newline: 341 if (sc_end == NULL) { 342 save_com = sc_buf; 343 save_com[0] = save_com[1] = ' '; 344 sc_end = &save_com[2]; 345 } 346 *sc_end++ = '\n'; 347 /* 348 * We may have inherited a force_nl == true from the previous 349 * token (like a semicolon). But once we know that a newline 350 * has been scanned in this loop, force_nl should be false. 351 * 352 * However, the force_nl == true must be preserved if newline 353 * is never scanned in this loop, so this assignment cannot be 354 * done earlier. 355 */ 356 force_nl = false; 357 case form_feed: 358 break; 359 case comment: 360 if (sc_end == NULL) { 361 /* 362 * Copy everything from the start of the line, because 363 * pr_comment() will use that to calculate original 364 * indentation of a boxed comment. 365 */ 366 memcpy(sc_buf, in_buffer, buf_ptr - in_buffer - 4); 367 save_com = sc_buf + (buf_ptr - in_buffer - 4); 368 save_com[0] = save_com[1] = ' '; 369 sc_end = &save_com[2]; 370 } 371 comment_buffered = true; 372 *sc_end++ = '/'; /* copy in start of comment */ 373 *sc_end++ = '*'; 374 for (;;) { /* loop until we get to the end of the comment */ 375 *sc_end = *buf_ptr++; 376 if (buf_ptr >= buf_end) 377 fill_buffer(); 378 if (*sc_end++ == '*' && *buf_ptr == '/') 379 break; /* we are at end of comment */ 380 if (sc_end >= &save_com[sc_size]) { /* check for temp buffer 381 * overflow */ 382 diag2(1, "Internal buffer overflow - Move big comment from right after if, while, or whatever"); 383 fflush(output); 384 exit(1); 385 } 386 } 387 *sc_end++ = '/'; /* add ending slash */ 388 if (++buf_ptr >= buf_end) /* get past / in buffer */ 389 fill_buffer(); 390 break; 391 case lbrace: 392 /* 393 * Put KNF-style lbraces before the buffered up tokens and 394 * jump out of this loop in order to avoid copying the token 395 * again under the default case of the switch below. 396 */ 397 if (sc_end != NULL && btype_2) { 398 save_com[0] = '{'; 399 /* 400 * Originally the lbrace may have been alone on its own 401 * line, but it will be moved into "the else's line", so 402 * if there was a newline resulting from the "{" before, 403 * it must be scanned now and ignored. 404 */ 405 while (isspace((int)*buf_ptr)) { 406 if (++buf_ptr >= buf_end) 407 fill_buffer(); 408 if (*buf_ptr == '\n') 409 break; 410 } 411 goto sw_buffer; 412 } 413 /* FALLTHROUGH */ 414 default: /* it is the start of a normal statement */ 415 { 416 int remove_newlines; 417 418 remove_newlines = 419 /* "} else" */ 420 (type_code == sp_nparen && *token == 'e' && 421 e_code != s_code && e_code[-1] == '}') 422 /* "else if" */ 423 || (type_code == sp_paren && *token == 'i' && 424 last_else && ps.else_if); 425 if (remove_newlines) 426 force_nl = false; 427 if (sc_end == NULL) { /* ignore buffering if 428 * comment wasn't saved up */ 429 ps.search_brace = false; 430 goto check_type; 431 } 432 while (sc_end > save_com && isblank((int)sc_end[-1])) { 433 sc_end--; 434 } 435 if (swallow_optional_blanklines || 436 (!comment_buffered && remove_newlines)) { 437 force_nl = !remove_newlines; 438 while (sc_end > save_com && sc_end[-1] == '\n') { 439 sc_end--; 440 } 441 } 442 if (force_nl) { /* if we should insert a nl here, put 443 * it into the buffer */ 444 force_nl = false; 445 --line_no; /* this will be re-increased when the 446 * newline is read from the buffer */ 447 *sc_end++ = '\n'; 448 *sc_end++ = ' '; 449 if (verbose) /* print error msg if the line was 450 * not already broken */ 451 diag2(0, "Line broken"); 452 } 453 for (t_ptr = token; *t_ptr; ++t_ptr) 454 *sc_end++ = *t_ptr; 455 456 sw_buffer: 457 ps.search_brace = false; /* stop looking for start of 458 * stmt */ 459 bp_save = buf_ptr; /* save current input buffer */ 460 be_save = buf_end; 461 buf_ptr = save_com; /* fix so that subsequent calls to 462 * lexi will take tokens out of 463 * save_com */ 464 *sc_end++ = ' ';/* add trailing blank, just in case */ 465 buf_end = sc_end; 466 sc_end = NULL; 467 break; 468 } 469 } /* end of switch */ 470 /* 471 * We must make this check, just in case there was an unexpected 472 * EOF. 473 */ 474 if (type_code != 0) { 475 /* 476 * The only intended purpose of calling lexi() below is to 477 * categorize the next token in order to decide whether to 478 * continue buffering forthcoming tokens. Once the buffering 479 * is over, lexi() will be called again elsewhere on all of 480 * the tokens - this time for normal processing. 481 * 482 * Calling it for this purpose is a bug, because lexi() also 483 * changes the parser state and discards leading whitespace, 484 * which is needed mostly for comment-related considerations. 485 * 486 * Work around the former problem by giving lexi() a copy of 487 * the current parser state and discard it if the call turned 488 * out to be just a look ahead. 489 * 490 * Work around the latter problem by copying all whitespace 491 * characters into the buffer so that the later lexi() call 492 * will read them. 493 */ 494 if (sc_end != NULL) { 495 while (*buf_ptr == ' ' || *buf_ptr == '\t') { 496 *sc_end++ = *buf_ptr++; 497 if (sc_end >= &save_com[sc_size]) { 498 abort(); 499 } 500 } 501 if (buf_ptr >= buf_end) { 502 fill_buffer(); 503 } 504 } 505 transient_state = ps; 506 type_code = lexi(&transient_state); /* read another token */ 507 if (type_code != newline && type_code != form_feed && 508 type_code != comment && !transient_state.search_brace) { 509 ps = transient_state; 510 } 511 } 512 } /* end of while (search_brace) */ 513 last_else = 0; 514 check_type: 515 if (type_code == 0) { /* we got eof */ 516 if (s_lab != e_lab || s_code != e_code 517 || s_com != e_com) /* must dump end of line */ 518 dump_line(); 519 if (ps.tos > 1) /* check for balanced braces */ 520 diag2(1, "Stuff missing from end of file"); 521 522 if (verbose) { 523 printf("There were %d output lines and %d comments\n", 524 ps.out_lines, ps.out_coms); 525 printf("(Lines with comments)/(Lines with code): %6.3f\n", 526 (1.0 * ps.com_lines) / code_lines); 527 } 528 fflush(output); 529 exit(found_err); 530 } 531 if ( 532 (type_code != comment) && 533 (type_code != newline) && 534 (type_code != preesc) && 535 (type_code != form_feed)) { 536 if (force_nl && 537 (type_code != semicolon) && 538 (type_code != lbrace || !btype_2)) { 539 /* we should force a broken line here */ 540 if (verbose) 541 diag2(0, "Line broken"); 542 dump_line(); 543 ps.want_blank = false; /* dont insert blank at line start */ 544 force_nl = false; 545 } 546 ps.in_stmt = true; /* turn on flag which causes an extra level of 547 * indentation. this is turned off by a ; or 548 * '}' */ 549 if (s_com != e_com) { /* the turkey has embedded a comment 550 * in a line. fix it */ 551 *e_code++ = ' '; 552 for (t_ptr = s_com; *t_ptr; ++t_ptr) { 553 CHECK_SIZE_CODE; 554 *e_code++ = *t_ptr; 555 } 556 *e_code++ = ' '; 557 *e_code = '\0'; /* null terminate code sect */ 558 ps.want_blank = false; 559 e_com = s_com; 560 } 561 } 562 else if (type_code != comment) /* preserve force_nl thru a comment */ 563 force_nl = false; /* cancel forced newline after newline, form 564 * feed, etc */ 565 566 567 568 /*-----------------------------------------------------*\ 569 | do switch on type of token scanned | 570 \*-----------------------------------------------------*/ 571 CHECK_SIZE_CODE; 572 switch (type_code) { /* now, decide what to do with the token */ 573 574 case form_feed: /* found a form feed in line */ 575 ps.use_ff = true; /* a form feed is treated much like a newline */ 576 dump_line(); 577 ps.want_blank = false; 578 break; 579 580 case newline: 581 if (ps.last_token != comma || ps.p_l_follow > 0 582 || !ps.leave_comma || ps.block_init || !break_comma || s_com != e_com) { 583 dump_line(); 584 ps.want_blank = false; 585 } 586 ++line_no; /* keep track of input line number */ 587 break; 588 589 case lparen: /* got a '(' or '[' */ 590 /* count parens to make Healy happy */ 591 if (++ps.p_l_follow == nitems(ps.paren_indents)) { 592 diag3(0, "Reached internal limit of %d unclosed parens", 593 nitems(ps.paren_indents)); 594 ps.p_l_follow--; 595 } 596 if (ps.in_decl && !ps.block_init && !ps.dumped_decl_indent && 597 ps.procname[0] == '\0' && ps.paren_level == 0) { 598 /* function pointer declarations */ 599 if (troff) { 600 sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, token); 601 e_code += strlen(e_code); 602 } 603 else { 604 indent_declaration(dec_ind, tabs_to_var); 605 } 606 ps.dumped_decl_indent = true; 607 } 608 else if (ps.want_blank && *token != '[' && 609 ((ps.last_token != ident && ps.last_token != funcname) || 610 proc_calls_space || 611 /* offsetof (1) is never allowed a space; sizeof (2) gets 612 * one iff -bs; all other keywords (>2) always get a space 613 * before lparen */ 614 ps.keyword + Bill_Shannon > 2)) 615 *e_code++ = ' '; 616 ps.want_blank = false; 617 if (!troff) 618 *e_code++ = token[0]; 619 ps.paren_indents[ps.p_l_follow - 1] = count_spaces_until(1, s_code, e_code) - 1; 620 if (sp_sw && ps.p_l_follow == 1 && extra_expression_indent 621 && ps.paren_indents[0] < 2 * ps.ind_size) 622 ps.paren_indents[0] = 2 * ps.ind_size; 623 if (ps.in_or_st && *token == '(' && ps.tos <= 2) { 624 /* 625 * this is a kluge to make sure that declarations will be 626 * aligned right if proc decl has an explicit type on it, i.e. 627 * "int a(x) {..." 628 */ 629 parse(semicolon); /* I said this was a kluge... */ 630 ps.in_or_st = false; /* turn off flag for structure decl or 631 * initialization */ 632 } 633 /* parenthesized type following sizeof or offsetof is not a cast */ 634 if (ps.keyword == 1 || ps.keyword == 2) 635 ps.not_cast_mask |= 1 << ps.p_l_follow; 636 break; 637 638 case rparen: /* got a ')' or ']' */ 639 if (ps.cast_mask & (1 << ps.p_l_follow) & ~ps.not_cast_mask) { 640 ps.last_u_d = true; 641 ps.cast_mask &= (1 << ps.p_l_follow) - 1; 642 ps.want_blank = space_after_cast; 643 } else 644 ps.want_blank = true; 645 ps.not_cast_mask &= (1 << ps.p_l_follow) - 1; 646 if (--ps.p_l_follow < 0) { 647 ps.p_l_follow = 0; 648 diag3(0, "Extra %c", *token); 649 } 650 if (e_code == s_code) /* if the paren starts the line */ 651 ps.paren_level = ps.p_l_follow; /* then indent it */ 652 653 *e_code++ = token[0]; 654 655 if (sp_sw && (ps.p_l_follow == 0)) { /* check for end of if 656 * (...), or some such */ 657 sp_sw = false; 658 force_nl = true;/* must force newline after if */ 659 ps.last_u_d = true; /* inform lexi that a following 660 * operator is unary */ 661 ps.in_stmt = false; /* dont use stmt continuation 662 * indentation */ 663 664 parse(hd_type); /* let parser worry about if, or whatever */ 665 } 666 ps.search_brace = btype_2; /* this should insure that constructs 667 * such as main(){...} and int[]{...} 668 * have their braces put in the right 669 * place */ 670 break; 671 672 case unary_op: /* this could be any unary operation */ 673 if (!ps.dumped_decl_indent && ps.in_decl && !ps.block_init && 674 ps.procname[0] == '\0' && ps.paren_level == 0) { 675 /* pointer declarations */ 676 if (troff) { 677 if (ps.want_blank) 678 *e_code++ = ' '; 679 sprintf(e_code, "\n.Du %dp+\200p \"%s\"\n", dec_ind * 7, 680 token); 681 e_code += strlen(e_code); 682 } 683 else { 684 /* if this is a unary op in a declaration, we should 685 * indent this token */ 686 for (i = 0; token[i]; ++i) 687 /* find length of token */; 688 indent_declaration(dec_ind - i, tabs_to_var); 689 } 690 ps.dumped_decl_indent = true; 691 } 692 else if (ps.want_blank) 693 *e_code++ = ' '; 694 { 695 const char *res = token; 696 697 if (troff && token[0] == '-' && token[1] == '>') 698 res = "\\(->"; 699 for (t_ptr = res; *t_ptr; ++t_ptr) { 700 CHECK_SIZE_CODE; 701 *e_code++ = *t_ptr; 702 } 703 } 704 ps.want_blank = false; 705 break; 706 707 case binary_op: /* any binary operation */ 708 if (ps.want_blank) 709 *e_code++ = ' '; 710 { 711 const char *res = token; 712 713 if (troff) 714 switch (token[0]) { 715 case '<': 716 if (token[1] == '=') 717 res = "\\(<="; 718 break; 719 case '>': 720 if (token[1] == '=') 721 res = "\\(>="; 722 break; 723 case '!': 724 if (token[1] == '=') 725 res = "\\(!="; 726 break; 727 case '|': 728 if (token[1] == '|') 729 res = "\\(br\\(br"; 730 else if (token[1] == 0) 731 res = "\\(br"; 732 break; 733 } 734 for (t_ptr = res; *t_ptr; ++t_ptr) { 735 CHECK_SIZE_CODE; 736 *e_code++ = *t_ptr; /* move the operator */ 737 } 738 } 739 ps.want_blank = true; 740 break; 741 742 case postop: /* got a trailing ++ or -- */ 743 *e_code++ = token[0]; 744 *e_code++ = token[1]; 745 ps.want_blank = true; 746 break; 747 748 case question: /* got a ? */ 749 squest++; /* this will be used when a later colon 750 * appears so we can distinguish the 751 * <c>?<n>:<n> construct */ 752 if (ps.want_blank) 753 *e_code++ = ' '; 754 *e_code++ = '?'; 755 ps.want_blank = true; 756 break; 757 758 case casestmt: /* got word 'case' or 'default' */ 759 scase = true; /* so we can process the later colon properly */ 760 goto copy_id; 761 762 case colon: /* got a ':' */ 763 if (squest > 0) { /* it is part of the <c>?<n>: <n> construct */ 764 --squest; 765 if (ps.want_blank) 766 *e_code++ = ' '; 767 *e_code++ = ':'; 768 ps.want_blank = true; 769 break; 770 } 771 if (ps.in_or_st) { 772 *e_code++ = ':'; 773 ps.want_blank = false; 774 break; 775 } 776 ps.in_stmt = false; /* seeing a label does not imply we are in a 777 * stmt */ 778 for (t_ptr = s_code; *t_ptr; ++t_ptr) 779 *e_lab++ = *t_ptr; /* turn everything so far into a label */ 780 e_code = s_code; 781 *e_lab++ = ':'; 782 *e_lab++ = ' '; 783 *e_lab = '\0'; 784 785 force_nl = ps.pcase = scase; /* ps.pcase will be used by 786 * dump_line to decide how to 787 * indent the label. force_nl 788 * will force a case n: to be 789 * on a line by itself */ 790 scase = false; 791 ps.want_blank = false; 792 break; 793 794 case semicolon: /* got a ';' */ 795 if (ps.dec_nest == 0) 796 ps.in_or_st = false;/* we are not in an initialization or 797 * structure declaration */ 798 scase = false; /* these will only need resetting in an error */ 799 squest = 0; 800 if (ps.last_token == rparen) 801 ps.in_parameter_declaration = 0; 802 ps.cast_mask = 0; 803 ps.not_cast_mask = 0; 804 ps.block_init = 0; 805 ps.block_init_level = 0; 806 ps.just_saw_decl--; 807 808 if (ps.in_decl && s_code == e_code && !ps.block_init && 809 !ps.dumped_decl_indent && ps.paren_level == 0) { 810 /* indent stray semicolons in declarations */ 811 indent_declaration(dec_ind - 1, tabs_to_var); 812 ps.dumped_decl_indent = true; 813 } 814 815 ps.in_decl = (ps.dec_nest > 0); /* if we were in a first level 816 * structure declaration, we 817 * arent any more */ 818 819 if ((!sp_sw || hd_type != forstmt) && ps.p_l_follow > 0) { 820 821 /* 822 * This should be true iff there were unbalanced parens in the 823 * stmt. It is a bit complicated, because the semicolon might 824 * be in a for stmt 825 */ 826 diag2(1, "Unbalanced parens"); 827 ps.p_l_follow = 0; 828 if (sp_sw) { /* this is a check for an if, while, etc. with 829 * unbalanced parens */ 830 sp_sw = false; 831 parse(hd_type); /* dont lose the if, or whatever */ 832 } 833 } 834 *e_code++ = ';'; 835 ps.want_blank = true; 836 ps.in_stmt = (ps.p_l_follow > 0); /* we are no longer in the 837 * middle of a stmt */ 838 839 if (!sp_sw) { /* if not if for (;;) */ 840 parse(semicolon); /* let parser know about end of stmt */ 841 force_nl = true;/* force newline after an end of stmt */ 842 } 843 break; 844 845 case lbrace: /* got a '{' */ 846 ps.in_stmt = false; /* dont indent the {} */ 847 if (!ps.block_init) 848 force_nl = true;/* force other stuff on same line as '{' onto 849 * new line */ 850 else if (ps.block_init_level <= 0) 851 ps.block_init_level = 1; 852 else 853 ps.block_init_level++; 854 855 if (s_code != e_code && !ps.block_init) { 856 if (!btype_2) { 857 dump_line(); 858 ps.want_blank = false; 859 } 860 else if (ps.in_parameter_declaration && !ps.in_or_st) { 861 ps.i_l_follow = 0; 862 if (function_brace_split) { /* dump the line prior to the 863 * brace ... */ 864 dump_line(); 865 ps.want_blank = false; 866 } else /* add a space between the decl and brace */ 867 ps.want_blank = true; 868 } 869 } 870 if (ps.in_parameter_declaration) 871 prefix_blankline_requested = 0; 872 873 if (ps.p_l_follow > 0) { /* check for preceding unbalanced 874 * parens */ 875 diag2(1, "Unbalanced parens"); 876 ps.p_l_follow = 0; 877 if (sp_sw) { /* check for unclosed if, for, etc. */ 878 sp_sw = false; 879 parse(hd_type); 880 ps.ind_level = ps.i_l_follow; 881 } 882 } 883 if (s_code == e_code) 884 ps.ind_stmt = false; /* dont put extra indentation on line 885 * with '{' */ 886 if (ps.in_decl && ps.in_or_st) { /* this is either a structure 887 * declaration or an init */ 888 di_stack[ps.dec_nest++] = dec_ind; 889 /* ? dec_ind = 0; */ 890 } 891 else { 892 ps.decl_on_line = false; /* we can't be in the middle of 893 * a declaration, so don't do 894 * special indentation of 895 * comments */ 896 if (blanklines_after_declarations_at_proctop 897 && ps.in_parameter_declaration) 898 postfix_blankline_requested = 1; 899 ps.in_parameter_declaration = 0; 900 ps.in_decl = false; 901 } 902 dec_ind = 0; 903 parse(lbrace); /* let parser know about this */ 904 if (ps.want_blank) /* put a blank before '{' if '{' is not at 905 * start of line */ 906 *e_code++ = ' '; 907 ps.want_blank = false; 908 *e_code++ = '{'; 909 ps.just_saw_decl = 0; 910 break; 911 912 case rbrace: /* got a '}' */ 913 if (ps.p_stack[ps.tos] == decl && !ps.block_init) /* semicolons can be 914 * omitted in 915 * declarations */ 916 parse(semicolon); 917 if (ps.p_l_follow) {/* check for unclosed if, for, else. */ 918 diag2(1, "Unbalanced parens"); 919 ps.p_l_follow = 0; 920 sp_sw = false; 921 } 922 ps.just_saw_decl = 0; 923 ps.block_init_level--; 924 if (s_code != e_code && !ps.block_init) { /* '}' must be first on 925 * line */ 926 if (verbose) 927 diag2(0, "Line broken"); 928 dump_line(); 929 } 930 *e_code++ = '}'; 931 ps.want_blank = true; 932 ps.in_stmt = ps.ind_stmt = false; 933 if (ps.dec_nest > 0) { /* we are in multi-level structure 934 * declaration */ 935 dec_ind = di_stack[--ps.dec_nest]; 936 if (ps.dec_nest == 0 && !ps.in_parameter_declaration) 937 ps.just_saw_decl = 2; 938 ps.in_decl = true; 939 } 940 prefix_blankline_requested = 0; 941 parse(rbrace); /* let parser know about this */ 942 ps.search_brace = cuddle_else && ps.p_stack[ps.tos] == ifhead 943 && ps.il[ps.tos] >= ps.ind_level; 944 if (ps.tos <= 1 && blanklines_after_procs && ps.dec_nest <= 0) 945 postfix_blankline_requested = 1; 946 break; 947 948 case swstmt: /* got keyword "switch" */ 949 sp_sw = true; 950 hd_type = swstmt; /* keep this for when we have seen the 951 * expression */ 952 goto copy_id; /* go move the token into buffer */ 953 954 case sp_paren: /* token is if, while, for */ 955 sp_sw = true; /* the interesting stuff is done after the 956 * expression is scanned */ 957 hd_type = (*token == 'i' ? ifstmt : 958 (*token == 'w' ? whilestmt : forstmt)); 959 960 /* 961 * remember the type of header for later use by parser 962 */ 963 goto copy_id; /* copy the token into line */ 964 965 case sp_nparen: /* got else, do */ 966 ps.in_stmt = false; 967 if (*token == 'e') { 968 if (e_code != s_code && (!cuddle_else || e_code[-1] != '}')) { 969 if (verbose) 970 diag2(0, "Line broken"); 971 dump_line();/* make sure this starts a line */ 972 ps.want_blank = false; 973 } 974 force_nl = true;/* also, following stuff must go onto new line */ 975 last_else = 1; 976 parse(elselit); 977 } 978 else { 979 if (e_code != s_code) { /* make sure this starts a line */ 980 if (verbose) 981 diag2(0, "Line broken"); 982 dump_line(); 983 ps.want_blank = false; 984 } 985 force_nl = true;/* also, following stuff must go onto new line */ 986 last_else = 0; 987 parse(dolit); 988 } 989 goto copy_id; /* move the token into line */ 990 991 case type_def: 992 case storage: 993 prefix_blankline_requested = 0; 994 goto copy_id; 995 996 case structure: 997 if (ps.p_l_follow > 0) 998 goto copy_id; 999 case decl: /* we have a declaration type (int, etc.) */ 1000 parse(decl); /* let parser worry about indentation */ 1001 if (ps.last_token == rparen && ps.tos <= 1) { 1002 if (s_code != e_code) { 1003 dump_line(); 1004 ps.want_blank = 0; 1005 } 1006 } 1007 if (ps.in_parameter_declaration && ps.indent_parameters && ps.dec_nest == 0) { 1008 ps.ind_level = ps.i_l_follow = 1; 1009 ps.ind_stmt = 0; 1010 } 1011 ps.in_or_st = true; /* this might be a structure or initialization 1012 * declaration */ 1013 ps.in_decl = ps.decl_on_line = ps.last_token != type_def; 1014 if ( /* !ps.in_or_st && */ ps.dec_nest <= 0) 1015 ps.just_saw_decl = 2; 1016 prefix_blankline_requested = 0; 1017 for (i = 0; token[i++];); /* get length of token */ 1018 1019 if (ps.ind_level == 0 || ps.dec_nest > 0) { 1020 /* global variable or struct member in local variable */ 1021 dec_ind = ps.decl_indent > 0 ? ps.decl_indent : i; 1022 tabs_to_var = (use_tabs ? ps.decl_indent > 0 : 0); 1023 } else { 1024 /* local variable */ 1025 dec_ind = ps.local_decl_indent > 0 ? ps.local_decl_indent : i; 1026 tabs_to_var = (use_tabs ? ps.local_decl_indent > 0 : 0); 1027 } 1028 goto copy_id; 1029 1030 case funcname: 1031 case ident: /* got an identifier or constant */ 1032 if (ps.in_decl) { 1033 if (type_code == funcname) { 1034 ps.in_decl = false; 1035 if (procnames_start_line && s_code != e_code) { 1036 *e_code = '\0'; 1037 dump_line(); 1038 } 1039 else if (ps.want_blank) { 1040 *e_code++ = ' '; 1041 } 1042 ps.want_blank = false; 1043 } 1044 else if (!ps.block_init && !ps.dumped_decl_indent && 1045 ps.paren_level == 0) { /* if we are in a declaration, we 1046 * must indent identifier */ 1047 1048 if (troff) { 1049 if (ps.want_blank) 1050 *e_code++ = ' '; 1051 sprintf(e_code, "\n.De %dp+\200p\n", dec_ind * 7); 1052 e_code += strlen(e_code); 1053 } else 1054 indent_declaration(dec_ind, tabs_to_var); 1055 ps.dumped_decl_indent = true; 1056 ps.want_blank = false; 1057 } 1058 } 1059 else if (sp_sw && ps.p_l_follow == 0) { 1060 sp_sw = false; 1061 force_nl = true; 1062 ps.last_u_d = true; 1063 ps.in_stmt = false; 1064 parse(hd_type); 1065 } 1066 copy_id: 1067 if (ps.want_blank) 1068 *e_code++ = ' '; 1069 if (troff && ps.keyword) { 1070 e_code = chfont(&bodyf, &keywordf, e_code); 1071 for (t_ptr = token; *t_ptr; ++t_ptr) { 1072 CHECK_SIZE_CODE; 1073 *e_code++ = keywordf.allcaps && islower(*t_ptr) 1074 ? toupper(*t_ptr) : *t_ptr; 1075 } 1076 e_code = chfont(&keywordf, &bodyf, e_code); 1077 } 1078 else 1079 for (t_ptr = token; *t_ptr; ++t_ptr) { 1080 CHECK_SIZE_CODE; 1081 *e_code++ = *t_ptr; 1082 } 1083 if (type_code != funcname) 1084 ps.want_blank = true; 1085 break; 1086 1087 case strpfx: 1088 if (ps.want_blank) 1089 *e_code++ = ' '; 1090 for (t_ptr = token; *t_ptr; ++t_ptr) { 1091 CHECK_SIZE_CODE; 1092 *e_code++ = *t_ptr; 1093 } 1094 ps.want_blank = false; 1095 break; 1096 1097 case period: /* treat a period kind of like a binary 1098 * operation */ 1099 *e_code++ = '.'; /* move the period into line */ 1100 ps.want_blank = false; /* dont put a blank after a period */ 1101 break; 1102 1103 case comma: 1104 ps.want_blank = (s_code != e_code); /* only put blank after comma 1105 * if comma does not start the 1106 * line */ 1107 if (ps.in_decl && ps.procname[0] == '\0' && !ps.block_init && 1108 !ps.dumped_decl_indent && ps.paren_level == 0) { 1109 /* indent leading commas and not the actual identifiers */ 1110 indent_declaration(dec_ind - 1, tabs_to_var); 1111 ps.dumped_decl_indent = true; 1112 } 1113 *e_code++ = ','; 1114 if (ps.p_l_follow == 0) { 1115 if (ps.block_init_level <= 0) 1116 ps.block_init = 0; 1117 if (break_comma && (!ps.leave_comma || 1118 count_spaces_until(compute_code_target(), s_code, e_code) > 1119 max_col - tabsize)) 1120 force_nl = true; 1121 } 1122 break; 1123 1124 case preesc: /* got the character '#' */ 1125 if ((s_com != e_com) || 1126 (s_lab != e_lab) || 1127 (s_code != e_code)) 1128 dump_line(); 1129 *e_lab++ = '#'; /* move whole line to 'label' buffer */ 1130 { 1131 int in_comment = 0; 1132 int com_start = 0; 1133 char quote = 0; 1134 int com_end = 0; 1135 1136 while (*buf_ptr == ' ' || *buf_ptr == '\t') { 1137 buf_ptr++; 1138 if (buf_ptr >= buf_end) 1139 fill_buffer(); 1140 } 1141 while (*buf_ptr != '\n' || (in_comment && !had_eof)) { 1142 CHECK_SIZE_LAB; 1143 *e_lab = *buf_ptr++; 1144 if (buf_ptr >= buf_end) 1145 fill_buffer(); 1146 switch (*e_lab++) { 1147 case BACKSLASH: 1148 if (troff) 1149 *e_lab++ = BACKSLASH; 1150 if (!in_comment) { 1151 *e_lab++ = *buf_ptr++; 1152 if (buf_ptr >= buf_end) 1153 fill_buffer(); 1154 } 1155 break; 1156 case '/': 1157 if (*buf_ptr == '*' && !in_comment && !quote) { 1158 in_comment = 1; 1159 *e_lab++ = *buf_ptr++; 1160 com_start = e_lab - s_lab - 2; 1161 } 1162 break; 1163 case '"': 1164 if (quote == '"') 1165 quote = 0; 1166 break; 1167 case '\'': 1168 if (quote == '\'') 1169 quote = 0; 1170 break; 1171 case '*': 1172 if (*buf_ptr == '/' && in_comment) { 1173 in_comment = 0; 1174 *e_lab++ = *buf_ptr++; 1175 com_end = e_lab - s_lab; 1176 } 1177 break; 1178 } 1179 } 1180 1181 while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t')) 1182 e_lab--; 1183 if (e_lab - s_lab == com_end && bp_save == NULL) { 1184 /* comment on preprocessor line */ 1185 if (sc_end == NULL) { /* if this is the first comment, 1186 * we must set up the buffer */ 1187 save_com = sc_buf; 1188 sc_end = &save_com[0]; 1189 } 1190 else { 1191 *sc_end++ = '\n'; /* add newline between 1192 * comments */ 1193 *sc_end++ = ' '; 1194 --line_no; 1195 } 1196 bcopy(s_lab + com_start, sc_end, com_end - com_start); 1197 sc_end += com_end - com_start; 1198 if (sc_end >= &save_com[sc_size]) 1199 abort(); 1200 e_lab = s_lab + com_start; 1201 while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t')) 1202 e_lab--; 1203 bp_save = buf_ptr; /* save current input buffer */ 1204 be_save = buf_end; 1205 buf_ptr = save_com; /* fix so that subsequent calls to 1206 * lexi will take tokens out of 1207 * save_com */ 1208 *sc_end++ = ' '; /* add trailing blank, just in case */ 1209 buf_end = sc_end; 1210 sc_end = NULL; 1211 } 1212 *e_lab = '\0'; /* null terminate line */ 1213 ps.pcase = false; 1214 } 1215 1216 if (strncmp(s_lab, "#if", 3) == 0) { /* also ifdef, ifndef */ 1217 if ((size_t)ifdef_level < nitems(state_stack)) { 1218 match_state[ifdef_level].tos = -1; 1219 state_stack[ifdef_level++] = ps; 1220 } 1221 else 1222 diag2(1, "#if stack overflow"); 1223 } 1224 else if (strncmp(s_lab, "#el", 3) == 0) { /* else, elif */ 1225 if (ifdef_level <= 0) 1226 diag2(1, s_lab[3] == 'i' ? "Unmatched #elif" : "Unmatched #else"); 1227 else { 1228 match_state[ifdef_level - 1] = ps; 1229 ps = state_stack[ifdef_level - 1]; 1230 } 1231 } 1232 else if (strncmp(s_lab, "#endif", 6) == 0) { 1233 if (ifdef_level <= 0) 1234 diag2(1, "Unmatched #endif"); 1235 else 1236 ifdef_level--; 1237 } else { 1238 struct directives { 1239 int size; 1240 const char *string; 1241 } 1242 recognized[] = { 1243 {7, "include"}, 1244 {6, "define"}, 1245 {5, "undef"}, 1246 {4, "line"}, 1247 {5, "error"}, 1248 {6, "pragma"} 1249 }; 1250 int d = nitems(recognized); 1251 while (--d >= 0) 1252 if (strncmp(s_lab + 1, recognized[d].string, recognized[d].size) == 0) 1253 break; 1254 if (d < 0) { 1255 diag2(1, "Unrecognized cpp directive"); 1256 break; 1257 } 1258 } 1259 if (blanklines_around_conditional_compilation) { 1260 postfix_blankline_requested++; 1261 n_real_blanklines = 0; 1262 } 1263 else { 1264 postfix_blankline_requested = 0; 1265 prefix_blankline_requested = 0; 1266 } 1267 break; /* subsequent processing of the newline 1268 * character will cause the line to be printed */ 1269 1270 case comment: /* we have gotten a / followed by * this is a biggie */ 1271 pr_comment(); 1272 break; 1273 } /* end of big switch stmt */ 1274 1275 *e_code = '\0'; /* make sure code section is null terminated */ 1276 if (type_code != comment && type_code != newline && type_code != preesc) 1277 ps.last_token = type_code; 1278 } /* end of main while (1) loop */ 1279 } 1280 1281 /* 1282 * copy input file to backup file if in_name is /blah/blah/blah/file, then 1283 * backup file will be ".Bfile" then make the backup file the input and 1284 * original input file the output 1285 */ 1286 static void 1287 bakcopy(void) 1288 { 1289 int n, 1290 bakchn; 1291 char buff[8 * 1024]; 1292 const char *p; 1293 1294 /* construct file name .Bfile */ 1295 for (p = in_name; *p; p++); /* skip to end of string */ 1296 while (p > in_name && *p != '/') /* find last '/' */ 1297 p--; 1298 if (*p == '/') 1299 p++; 1300 sprintf(bakfile, "%s%s", p, simple_backup_suffix); 1301 1302 /* copy in_name to backup file */ 1303 bakchn = creat(bakfile, 0600); 1304 if (bakchn < 0) 1305 err(1, "%s", bakfile); 1306 while ((n = read(fileno(input), buff, sizeof(buff))) > 0) 1307 if (write(bakchn, buff, n) != n) 1308 err(1, "%s", bakfile); 1309 if (n < 0) 1310 err(1, "%s", in_name); 1311 close(bakchn); 1312 fclose(input); 1313 1314 /* re-open backup file as the input file */ 1315 input = fopen(bakfile, "r"); 1316 if (input == NULL) 1317 err(1, "%s", bakfile); 1318 /* now the original input file will be the output */ 1319 output = fopen(in_name, "w"); 1320 if (output == NULL) { 1321 unlink(bakfile); 1322 err(1, "%s", in_name); 1323 } 1324 } 1325 1326 static void 1327 indent_declaration(int cur_dec_ind, int tabs_to_var) 1328 { 1329 int pos = e_code - s_code; 1330 char *startpos = e_code; 1331 1332 /* 1333 * get the tab math right for indentations that are not multiples of tabsize 1334 */ 1335 if ((ps.ind_level * ps.ind_size) % tabsize != 0) { 1336 pos += (ps.ind_level * ps.ind_size) % tabsize; 1337 cur_dec_ind += (ps.ind_level * ps.ind_size) % tabsize; 1338 } 1339 if (tabs_to_var) { 1340 int tpos; 1341 1342 while ((tpos = tabsize * (1 + pos / tabsize)) <= cur_dec_ind) { 1343 CHECK_SIZE_CODE; 1344 *e_code++ = '\t'; 1345 pos = tpos; 1346 } 1347 } 1348 while (pos < cur_dec_ind) { 1349 CHECK_SIZE_CODE; 1350 *e_code++ = ' '; 1351 pos++; 1352 } 1353 if (e_code == startpos && ps.want_blank) { 1354 *e_code++ = ' '; 1355 ps.want_blank = false; 1356 } 1357 } 1358