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 */ 39 40 #define BACKSLASH '\\' 41 #define bufsize 200 /* size of internal buffers */ 42 #define sc_size 5000 /* size of save_com buffer */ 43 #define label_offset 2 /* number of levels a label is placed to left 44 * of code */ 45 46 47 #define false 0 48 #define true 1 49 50 51 extern FILE *input; /* the fid for the input file */ 52 extern FILE *output; /* the output file */ 53 54 #define CHECK_SIZE_CODE(desired_size) \ 55 if (e_code + (desired_size) >= l_code) { \ 56 int nsize = l_code-s_code + 400 + desired_size; \ 57 int code_len = e_code-s_code; \ 58 codebuf = (char *) realloc(codebuf, nsize); \ 59 if (codebuf == NULL) \ 60 err(1, NULL); \ 61 e_code = codebuf + code_len + 1; \ 62 l_code = codebuf + nsize - 5; \ 63 s_code = codebuf + 1; \ 64 } 65 #define CHECK_SIZE_COM(desired_size) \ 66 if (e_com + (desired_size) >= l_com) { \ 67 int nsize = l_com-s_com + 400 + desired_size; \ 68 int com_len = e_com - s_com; \ 69 int blank_pos; \ 70 if (last_bl != NULL) \ 71 blank_pos = last_bl - combuf; \ 72 else \ 73 blank_pos = -1; \ 74 combuf = (char *) realloc(combuf, nsize); \ 75 if (combuf == NULL) \ 76 err(1, NULL); \ 77 e_com = combuf + com_len + 1; \ 78 if (blank_pos > 0) \ 79 last_bl = combuf + blank_pos; \ 80 l_com = combuf + nsize - 5; \ 81 s_com = combuf + 1; \ 82 } 83 #define CHECK_SIZE_LAB(desired_size) \ 84 if (e_lab + (desired_size) >= l_lab) { \ 85 int nsize = l_lab-s_lab + 400 + desired_size; \ 86 int label_len = e_lab - s_lab; \ 87 labbuf = (char *) realloc(labbuf, nsize); \ 88 if (labbuf == NULL) \ 89 err(1, NULL); \ 90 e_lab = labbuf + label_len + 1; \ 91 l_lab = labbuf + nsize - 5; \ 92 s_lab = labbuf + 1; \ 93 } 94 #define CHECK_SIZE_TOKEN(desired_size) \ 95 if (e_token + (desired_size) >= l_token) { \ 96 int nsize = l_token-s_token + 400 + desired_size; \ 97 int token_len = e_token - s_token; \ 98 tokenbuf = (char *) realloc(tokenbuf, nsize); \ 99 if (tokenbuf == NULL) \ 100 err(1, NULL); \ 101 e_token = tokenbuf + token_len + 1; \ 102 l_token = tokenbuf + nsize - 5; \ 103 s_token = tokenbuf + 1; \ 104 } 105 106 extern char *labbuf; /* buffer for label */ 107 extern char *s_lab; /* start ... */ 108 extern char *e_lab; /* .. and end of stored label */ 109 extern char *l_lab; /* limit of label buffer */ 110 111 extern char *codebuf; /* buffer for code section */ 112 extern char *s_code; /* start ... */ 113 extern char *e_code; /* .. and end of stored code */ 114 extern char *l_code; /* limit of code section */ 115 116 extern char *combuf; /* buffer for comments */ 117 extern char *s_com; /* start ... */ 118 extern char *e_com; /* ... and end of stored comments */ 119 extern char *l_com; /* limit of comment buffer */ 120 121 #define token s_token 122 extern char *tokenbuf; /* the last token scanned */ 123 extern char *s_token; 124 extern char *e_token; 125 extern char *l_token; 126 127 extern char *in_buffer; /* input buffer */ 128 extern char *in_buffer_limit; /* the end of the input buffer */ 129 extern char *buf_ptr; /* ptr to next character to be taken 130 * from in_buffer */ 131 extern char *buf_end; /* ptr to first after last char in 132 * in_buffer */ 133 134 extern char sc_buf[sc_size]; /* input text is saved here when looking 135 * for the brace after an if, while, etc */ 136 extern char *save_com; /* start of the comment stored in 137 * sc_buf */ 138 extern char *sc_end; /* pointer into save_com buffer */ 139 140 extern char *bp_save; /* saved value of buf_ptr when taking 141 * input from save_com */ 142 extern char *be_save; /* similarly saved value of buf_end */ 143 144 145 struct options { 146 int blanklines_around_conditional_compilation; 147 int blanklines_after_declarations_at_proctop; /* this is vaguely 148 * similar to blanklines_after_decla except 149 * that in only applies to the first set of 150 * declarations in a procedure (just after 151 * the first '{') and it causes a blank line 152 * to be generated even if there are no 153 * declarations */ 154 int blanklines_after_declarations; 155 int blanklines_after_procs; 156 int blanklines_before_blockcomments; 157 int leave_comma; /* if true, never break declarations after 158 * commas */ 159 int btype_2; /* when true, brace should be on same line 160 * as if, while, etc */ 161 int Bill_Shannon; /* true iff a blank should always be 162 * inserted after sizeof */ 163 int comment_delimiter_on_blankline; 164 int decl_com_ind; /* the column in which comments after 165 * declarations should be put */ 166 int cuddle_else; /* true if else should cuddle up to '}' */ 167 int continuation_indent; /* set to the indentation between the 168 * edge of code and continuation lines */ 169 float case_indent; /* The distance to indent case labels from the 170 * switch statement */ 171 int com_ind; /* the column in which comments to the right 172 * of code should start */ 173 int decl_indent; /* column to indent declared identifiers to */ 174 int ljust_decl; /* true if declarations should be left 175 * justified */ 176 int unindent_displace; /* comments not to the right of code 177 * will be placed this many 178 * indentation levels to the left of 179 * code */ 180 int extra_expression_indent; /* true if continuation lines from 181 * the expression part of "if(e)", 182 * "while(e)", "for(e;e;e)" should be 183 * indented an extra tab stop so that they 184 * don't conflict with the code that follows */ 185 int else_if; /* True iff else if pairs should be handled 186 * specially */ 187 int function_brace_split; /* split function declaration and 188 * brace onto separate lines */ 189 int format_col1_comments; /* If comments which start in column 1 190 * are to be magically reformatted (just 191 * like comments that begin in later columns) */ 192 int format_block_comments; /* true if comments beginning with 193 * `/ * \n' are to be reformatted */ 194 int indent_parameters; 195 int ind_size; /* the size of one indentation level */ 196 int block_comment_max_col; 197 int local_decl_indent; /* like decl_indent but for locals */ 198 int lineup_to_parens_always; /* if true, do not attempt to keep 199 * lined-up code within the margin */ 200 int lineup_to_parens; /* if true, continued code within parens 201 * will be lined up to the open paren */ 202 int pointer_as_binop; /* if true, the pointer dereference operator 203 * will be treated as a binary operator */ 204 int proc_calls_space; /* If true, procedure calls look like: 205 * foo (bar) rather than foo(bar) */ 206 int procnames_start_line; /* if true, the names of procedures 207 * being defined get placed in column 1 (ie. 208 * a newline is placed between the type of 209 * the procedure and its name) */ 210 int space_after_cast; /* "b = (int) a" vs "b = (int)a" */ 211 int star_comment_cont; /* true iff comment continuation lines 212 * should have stars at the beginning of 213 * each line. */ 214 int swallow_optional_blanklines; 215 int auto_typedefs; /* set true to recognize identifiers 216 * ending in "_t" like typedefs */ 217 int tabsize; /* the size of a tab */ 218 int max_col; /* the maximum allowable line length */ 219 int use_tabs; /* set true to use tabs for spacing, false 220 * uses all spaces */ 221 int verbose; /* when true, non-essential error messages 222 * are printed */ 223 }; 224 extern struct options opt; 225 226 extern int found_err; 227 extern int n_real_blanklines; 228 extern int prefix_blankline_requested; 229 extern int postfix_blankline_requested; 230 extern int break_comma; /* when true and not in parens, break after a 231 * comma */ 232 extern float case_ind; /* indentation level to be used for a "case 233 * n:" */ 234 extern int code_lines; /* count of lines with code */ 235 extern int had_eof; /* set to true when input is exhausted */ 236 extern int line_no; /* the current line number. */ 237 extern int inhibit_formatting; /* true if INDENT OFF is in effect */ 238 extern int suppress_blanklines;/* set iff following blanklines should be 239 * suppressed */ 240 241 #define STACKSIZE 256 242 243 struct parser_state { 244 int last_token; 245 int p_stack[STACKSIZE]; /* this is the parsers stack */ 246 int il[STACKSIZE]; /* this stack stores indentation levels */ 247 float cstk[STACKSIZE];/* used to store case stmt indentation levels */ 248 int box_com; /* set to true when we are in a "boxed" 249 * comment. In that case, the first non-blank 250 * char should be lined up with the / in / followed by * */ 251 int comment_delta; /* used to set up indentation for all lines 252 * of a boxed comment after the first one */ 253 int n_comment_delta;/* remembers how many columns there were 254 * before the start of a box comment so that 255 * forthcoming lines of the comment are 256 * indented properly */ 257 int cast_mask; /* indicates which close parens potentially 258 * close off casts */ 259 int not_cast_mask; /* indicates which close parens definitely 260 * close off something else than casts */ 261 int block_init; /* true iff inside a block initialization */ 262 int block_init_level; /* The level of brace nesting in an 263 * initialization */ 264 int last_nl; /* this is true if the last thing scanned was 265 * a newline */ 266 int in_or_st; /* Will be true iff there has been a 267 * declarator (e.g. int or char) and no left 268 * paren since the last semicolon. When true, 269 * a '{' is starting a structure definition or 270 * an initialization list */ 271 int bl_line; /* set to 1 by dump_line if the line is blank */ 272 int col_1; /* set to true if the last token started in 273 * column 1 */ 274 int com_col; /* this is the column in which the current 275 * comment should start */ 276 int com_lines; /* the number of lines with comments, set by 277 * dump_line */ 278 int dec_nest; /* current nesting level for structure or init */ 279 int decl_on_line; /* set to true if this line of code has part 280 * of a declaration on it */ 281 int i_l_follow; /* the level to which ind_level should be set 282 * after the current line is printed */ 283 int in_decl; /* set to true when we are in a declaration 284 * stmt. The processing of braces is then 285 * slightly different */ 286 int in_stmt; /* set to 1 while in a stmt */ 287 int ind_level; /* the current indentation level */ 288 int ind_stmt; /* set to 1 if next line should have an extra 289 * indentation level because we are in the 290 * middle of a stmt */ 291 int last_u_d; /* set to true after scanning a token which 292 * forces a following operator to be unary */ 293 int out_coms; /* the number of comments processed, set by 294 * pr_comment */ 295 int out_lines; /* the number of lines written, set by 296 * dump_line */ 297 int p_l_follow; /* used to remember how to indent following 298 * statement */ 299 int paren_level; /* parenthesization level. used to indent 300 * within statements */ 301 short paren_indents[20]; /* column positions of each paren */ 302 int pcase; /* set to 1 if the current line label is a 303 * case. It is printed differently from a 304 * regular label */ 305 int search_brace; /* set to true by parse when it is necessary 306 * to buffer up all info up to the start of a 307 * stmt after an if, while, etc */ 308 int use_ff; /* set to one if the current line should be 309 * terminated with a form feed */ 310 int want_blank; /* set to true when the following token should 311 * be prefixed by a blank. (Said prefixing is 312 * ignored in some cases.) */ 313 int keyword; /* the type of a keyword or 0 */ 314 int dumped_decl_indent; 315 int in_parameter_declaration; 316 int tos; /* pointer to top of stack */ 317 char procname[100]; /* The name of the current procedure */ 318 int just_saw_decl; 319 }; 320 321 extern struct parser_state ps; 322 323 extern int ifdef_level; 324 extern struct parser_state state_stack[5]; 325 extern struct parser_state match_state[5]; 326