1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1985 Sun Microsystems, Inc. 5 * Copyright (c) 1980, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 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 * @(#)indent_globs.h 8.1 (Berkeley) 6/6/93 38 * $FreeBSD$ 39 */ 40 41 #define BACKSLASH '\\' 42 #define bufsize 200 /* size of internal buffers */ 43 #define sc_size 5000 /* size of save_com buffer */ 44 #define label_offset 2 /* number of levels a label is placed to left 45 * of code */ 46 47 48 #define false 0 49 #define true 1 50 51 52 FILE *input; /* the fid for the input file */ 53 FILE *output; /* the output file */ 54 55 #define CHECK_SIZE_CODE(desired_size) \ 56 if (e_code + (desired_size) >= l_code) { \ 57 int nsize = l_code-s_code + 400 + desired_size; \ 58 int code_len = e_code-s_code; \ 59 codebuf = (char *) realloc(codebuf, nsize); \ 60 if (codebuf == NULL) \ 61 err(1, NULL); \ 62 e_code = codebuf + code_len + 1; \ 63 l_code = codebuf + nsize - 5; \ 64 s_code = codebuf + 1; \ 65 } 66 #define CHECK_SIZE_COM(desired_size) \ 67 if (e_com + (desired_size) >= l_com) { \ 68 int nsize = l_com-s_com + 400 + desired_size; \ 69 int com_len = e_com - s_com; \ 70 int blank_pos; \ 71 if (last_bl != NULL) \ 72 blank_pos = last_bl - combuf; \ 73 else \ 74 blank_pos = -1; \ 75 combuf = (char *) realloc(combuf, nsize); \ 76 if (combuf == NULL) \ 77 err(1, NULL); \ 78 e_com = combuf + com_len + 1; \ 79 if (blank_pos > 0) \ 80 last_bl = combuf + blank_pos; \ 81 l_com = combuf + nsize - 5; \ 82 s_com = combuf + 1; \ 83 } 84 #define CHECK_SIZE_LAB(desired_size) \ 85 if (e_lab + (desired_size) >= l_lab) { \ 86 int nsize = l_lab-s_lab + 400 + desired_size; \ 87 int label_len = e_lab - s_lab; \ 88 labbuf = (char *) realloc(labbuf, nsize); \ 89 if (labbuf == NULL) \ 90 err(1, NULL); \ 91 e_lab = labbuf + label_len + 1; \ 92 l_lab = labbuf + nsize - 5; \ 93 s_lab = labbuf + 1; \ 94 } 95 #define CHECK_SIZE_TOKEN(desired_size) \ 96 if (e_token + (desired_size) >= l_token) { \ 97 int nsize = l_token-s_token + 400 + desired_size; \ 98 int token_len = e_token - s_token; \ 99 tokenbuf = (char *) realloc(tokenbuf, nsize); \ 100 if (tokenbuf == NULL) \ 101 err(1, NULL); \ 102 e_token = tokenbuf + token_len + 1; \ 103 l_token = tokenbuf + nsize - 5; \ 104 s_token = tokenbuf + 1; \ 105 } 106 107 char *labbuf; /* buffer for label */ 108 char *s_lab; /* start ... */ 109 char *e_lab; /* .. and end of stored label */ 110 char *l_lab; /* limit of label buffer */ 111 112 char *codebuf; /* buffer for code section */ 113 char *s_code; /* start ... */ 114 char *e_code; /* .. and end of stored code */ 115 char *l_code; /* limit of code section */ 116 117 char *combuf; /* buffer for comments */ 118 char *s_com; /* start ... */ 119 char *e_com; /* ... and end of stored comments */ 120 char *l_com; /* limit of comment buffer */ 121 122 #define token s_token 123 char *tokenbuf; /* the last token scanned */ 124 char *s_token; 125 char *e_token; 126 char *l_token; 127 128 char *in_buffer; /* input buffer */ 129 char *in_buffer_limit; /* the end of the input buffer */ 130 char *buf_ptr; /* ptr to next character to be taken from 131 * in_buffer */ 132 char *buf_end; /* ptr to first after last char in in_buffer */ 133 134 char sc_buf[sc_size]; /* input text is saved here when looking for 135 * the brace after an if, while, etc */ 136 char *save_com; /* start of the comment stored in sc_buf */ 137 char *sc_end; /* pointer into save_com buffer */ 138 139 char *bp_save; /* saved value of buf_ptr when taking input 140 * from save_com */ 141 char *be_save; /* similarly saved value of buf_end */ 142 143 144 int found_err; 145 int blanklines_after_declarations; 146 int blanklines_before_blockcomments; 147 int blanklines_after_procs; 148 int blanklines_around_conditional_compilation; 149 int swallow_optional_blanklines; 150 int n_real_blanklines; 151 int prefix_blankline_requested; 152 int postfix_blankline_requested; 153 int break_comma; /* when true and not in parens, break after a 154 * comma */ 155 int btype_2; /* when true, brace should be on same line as 156 * if, while, etc */ 157 float case_ind; /* indentation level to be used for a "case 158 * n:" */ 159 int code_lines; /* count of lines with code */ 160 int had_eof; /* set to true when input is exhausted */ 161 int line_no; /* the current line number. */ 162 int max_col; /* the maximum allowable line length */ 163 int verbose; /* when true, non-essential error messages are 164 * printed */ 165 int cuddle_else; /* true if else should cuddle up to '}' */ 166 int star_comment_cont; /* true iff comment continuation lines should 167 * have stars at the beginning of each line. */ 168 int comment_delimiter_on_blankline; 169 int procnames_start_line; /* if true, the names of procedures 170 * being defined get placed in column 171 * 1 (ie. a newline is placed between 172 * the type of the procedure and its 173 * name) */ 174 int proc_calls_space; /* If true, procedure calls look like: 175 * foo (bar) rather than foo(bar) */ 176 int format_block_comments; /* true if comments beginning with 177 * `/ * \n' are to be reformatted */ 178 int format_col1_comments; /* If comments which start in column 1 179 * are to be magically reformatted 180 * (just like comments that begin in 181 * later columns) */ 182 int inhibit_formatting; /* true if INDENT OFF is in effect */ 183 int suppress_blanklines;/* set iff following blanklines should be 184 * suppressed */ 185 int continuation_indent;/* set to the indentation between the edge of 186 * code and continuation lines */ 187 int lineup_to_parens; /* if true, continued code within parens will 188 * be lined up to the open paren */ 189 int lineup_to_parens_always; /* if true, do not attempt to keep 190 * lined-up code within the margin */ 191 int Bill_Shannon; /* true iff a blank should always be inserted 192 * after sizeof */ 193 int blanklines_after_declarations_at_proctop; /* This is vaguely 194 * similar to 195 * blanklines_after_decla 196 * rations except that 197 * it only applies to 198 * the first set of 199 * declarations in a 200 * procedure (just after 201 * the first '{') and it 202 * causes a blank line 203 * to be generated even 204 * if there are no 205 * declarations */ 206 int block_comment_max_col; 207 int extra_expression_indent; /* true if continuation lines from the 208 * expression part of "if(e)", 209 * "while(e)", "for(e;e;e)" should be 210 * indented an extra tab stop so that 211 * they don't conflict with the code 212 * that follows */ 213 int function_brace_split; /* split function declaration and 214 * brace onto separate lines */ 215 int use_tabs; /* set true to use tabs for spacing, 216 * false uses all spaces */ 217 int auto_typedefs; /* set true to recognize identifiers 218 * ending in "_t" like typedefs */ 219 int space_after_cast; /* "b = (int) a" vs "b = (int)a" */ 220 int tabsize; /* the size of a tab */ 221 222 #define STACKSIZE 256 223 224 struct parser_state { 225 int last_token; 226 int p_stack[STACKSIZE]; /* this is the parsers stack */ 227 int il[STACKSIZE]; /* this stack stores indentation levels */ 228 float cstk[STACKSIZE];/* used to store case stmt indentation levels */ 229 int box_com; /* set to true when we are in a "boxed" 230 * comment. In that case, the first non-blank 231 * char should be lined up with the / in / followed by * */ 232 int comment_delta; /* used to set up indentation for all lines 233 * of a boxed comment after the first one */ 234 int n_comment_delta;/* remembers how many columns there were 235 * before the start of a box comment so that 236 * forthcoming lines of the comment are 237 * indented properly */ 238 int cast_mask; /* indicates which close parens potentially 239 * close off casts */ 240 int not_cast_mask; /* indicates which close parens definitely 241 * close off something else than casts */ 242 int block_init; /* true iff inside a block initialization */ 243 int block_init_level; /* The level of brace nesting in an 244 * initialization */ 245 int last_nl; /* this is true if the last thing scanned was 246 * a newline */ 247 int in_or_st; /* Will be true iff there has been a 248 * declarator (e.g. int or char) and no left 249 * paren since the last semicolon. When true, 250 * a '{' is starting a structure definition or 251 * an initialization list */ 252 int bl_line; /* set to 1 by dump_line if the line is blank */ 253 int col_1; /* set to true if the last token started in 254 * column 1 */ 255 int com_col; /* this is the column in which the current 256 * comment should start */ 257 int com_ind; /* the column in which comments to the right 258 * of code should start */ 259 int com_lines; /* the number of lines with comments, set by 260 * dump_line */ 261 int dec_nest; /* current nesting level for structure or init */ 262 int decl_com_ind; /* the column in which comments after 263 * declarations should be put */ 264 int decl_on_line; /* set to true if this line of code has part 265 * of a declaration on it */ 266 int i_l_follow; /* the level to which ind_level should be set 267 * after the current line is printed */ 268 int in_decl; /* set to true when we are in a declaration 269 * stmt. The processing of braces is then 270 * slightly different */ 271 int in_stmt; /* set to 1 while in a stmt */ 272 int ind_level; /* the current indentation level */ 273 int ind_size; /* the size of one indentation level */ 274 int ind_stmt; /* set to 1 if next line should have an extra 275 * indentation level because we are in the 276 * middle of a stmt */ 277 int last_u_d; /* set to true after scanning a token which 278 * forces a following operator to be unary */ 279 int leave_comma; /* if true, never break declarations after 280 * commas */ 281 int ljust_decl; /* true if declarations should be left 282 * justified */ 283 int out_coms; /* the number of comments processed, set by 284 * pr_comment */ 285 int out_lines; /* the number of lines written, set by 286 * dump_line */ 287 int p_l_follow; /* used to remember how to indent following 288 * statement */ 289 int paren_level; /* parenthesization level. used to indent 290 * within statements */ 291 short paren_indents[20]; /* column positions of each paren */ 292 int pcase; /* set to 1 if the current line label is a 293 * case. It is printed differently from a 294 * regular label */ 295 int search_brace; /* set to true by parse when it is necessary 296 * to buffer up all info up to the start of a 297 * stmt after an if, while, etc */ 298 int unindent_displace; /* comments not to the right of code 299 * will be placed this many 300 * indentation levels to the left of 301 * code */ 302 int use_ff; /* set to one if the current line should be 303 * terminated with a form feed */ 304 int want_blank; /* set to true when the following token should 305 * be prefixed by a blank. (Said prefixing is 306 * ignored in some cases.) */ 307 int else_if; /* True iff else if pairs should be handled 308 * specially */ 309 int decl_indent; /* column to indent declared identifiers to */ 310 int local_decl_indent; /* like decl_indent but for locals */ 311 int keyword; /* the type of a keyword or 0 */ 312 int dumped_decl_indent; 313 float case_indent; /* The distance to indent case labels from the 314 * switch statement */ 315 int in_parameter_declaration; 316 int indent_parameters; 317 int tos; /* pointer to top of stack */ 318 char procname[100]; /* The name of the current procedure */ 319 int just_saw_decl; 320 } ps; 321 322 int ifdef_level; 323 struct parser_state state_stack[5]; 324 struct parser_state match_state[5]; 325