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 \ 56 if (e_code >= l_code) { \ 57 int nsize = l_code-s_code+400; \ 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 \ 67 if (e_com >= l_com) { \ 68 int nsize = l_com-s_com+400; \ 69 int com_len = e_com - s_com; \ 70 int blank_pos = last_bl - s_com; \ 71 combuf = (char *) realloc(combuf, nsize); \ 72 if (combuf == NULL) \ 73 err(1, NULL); \ 74 e_com = combuf + com_len + 1; \ 75 last_bl = combuf + blank_pos + 1; \ 76 l_com = combuf + nsize - 5; \ 77 s_com = combuf + 1; \ 78 } 79 #define CHECK_SIZE_LAB \ 80 if (e_lab >= l_lab) { \ 81 int nsize = l_lab-s_lab+400; \ 82 int label_len = e_lab - s_lab; \ 83 labbuf = (char *) realloc(labbuf, nsize); \ 84 if (labbuf == NULL) \ 85 err(1, NULL); \ 86 e_lab = labbuf + label_len + 1; \ 87 l_lab = labbuf + nsize - 5; \ 88 s_lab = labbuf + 1; \ 89 } 90 #define CHECK_SIZE_TOKEN \ 91 if (e_token >= l_token) { \ 92 int nsize = l_token-s_token+400; \ 93 int token_len = e_token - s_token; \ 94 tokenbuf = (char *) realloc(tokenbuf, nsize); \ 95 if (tokenbuf == NULL) \ 96 err(1, NULL); \ 97 e_token = tokenbuf + token_len + 1; \ 98 l_token = tokenbuf + nsize - 5; \ 99 s_token = tokenbuf + 1; \ 100 } 101 102 char *labbuf; /* buffer for label */ 103 char *s_lab; /* start ... */ 104 char *e_lab; /* .. and end of stored label */ 105 char *l_lab; /* limit of label buffer */ 106 107 char *codebuf; /* buffer for code section */ 108 char *s_code; /* start ... */ 109 char *e_code; /* .. and end of stored code */ 110 char *l_code; /* limit of code section */ 111 112 char *combuf; /* buffer for comments */ 113 char *s_com; /* start ... */ 114 char *e_com; /* ... and end of stored comments */ 115 char *l_com; /* limit of comment buffer */ 116 117 #define token s_token 118 char *tokenbuf; /* the last token scanned */ 119 char *s_token; 120 char *e_token; 121 char *l_token; 122 123 char *in_buffer; /* input buffer */ 124 char *in_buffer_limit; /* the end of the input buffer */ 125 char *buf_ptr; /* ptr to next character to be taken from 126 * in_buffer */ 127 char *buf_end; /* ptr to first after last char in in_buffer */ 128 129 char save_com[sc_size]; /* input text is saved here when looking for 130 * the brace after an if, while, etc */ 131 char *sc_end; /* pointer into save_com buffer */ 132 133 char *bp_save; /* saved value of buf_ptr when taking input 134 * from save_com */ 135 char *be_save; /* similarly saved value of buf_end */ 136 137 138 int found_err; 139 int pointer_as_binop; 140 int blanklines_after_declarations; 141 int blanklines_before_blockcomments; 142 int blanklines_after_procs; 143 int blanklines_around_conditional_compilation; 144 int swallow_optional_blanklines; 145 int n_real_blanklines; 146 int prefix_blankline_requested; 147 int postfix_blankline_requested; 148 int break_comma; /* when true and not in parens, break after a 149 * comma */ 150 int btype_2; /* when true, brace should be on same line as 151 * if, while, etc */ 152 float case_ind; /* indentation level to be used for a "case 153 * n:" */ 154 int code_lines; /* count of lines with code */ 155 int had_eof; /* set to true when input is exhausted */ 156 int line_no; /* the current line number. */ 157 int max_col; /* the maximum allowable line length */ 158 int verbose; /* when true, non-essential error messages are 159 * printed */ 160 int cuddle_else; /* true if else should cuddle up to '}' */ 161 int star_comment_cont; /* true iff comment continuation lines should 162 * have stars at the beginning of each line. */ 163 int comment_delimiter_on_blankline; 164 int troff; /* true iff were generating troff input */ 165 int procnames_start_line; /* if true, the names of procedures 166 * being defined get placed in column 167 * 1 (ie. a newline is placed between 168 * the type of the procedure and its 169 * name) */ 170 int proc_calls_space; /* If true, procedure calls look like: 171 * foo(bar) rather than foo (bar) */ 172 int format_block_comments; /* true if comments beginning with 173 * `/ * \n' are to be reformatted */ 174 int format_col1_comments; /* If comments which start in column 1 175 * are to be magically reformatted 176 * (just like comments that begin in 177 * later columns) */ 178 int inhibit_formatting; /* true if INDENT OFF is in effect */ 179 int suppress_blanklines;/* set iff following blanklines should be 180 * suppressed */ 181 int continuation_indent;/* set to the indentation between the edge of 182 * code and continuation lines */ 183 int lineup_to_parens; /* if true, continued code within parens will 184 * be lined up to the open paren */ 185 int Bill_Shannon; /* true iff a blank should always be inserted 186 * after sizeof */ 187 int blanklines_after_declarations_at_proctop; /* This is vaguely 188 * similar to 189 * blanklines_after_decla 190 * rations except that 191 * it only applies to 192 * the first set of 193 * declarations in a 194 * procedure (just after 195 * the first '{') and it 196 * causes a blank line 197 * to be generated even 198 * if there are no 199 * declarations */ 200 int block_comment_max_col; 201 int extra_expression_indent; /* true if continuation lines from the 202 * expression part of "if(e)", 203 * "while(e)", "for(e;e;e)" should be 204 * indented an extra tab stop so that 205 * they don't conflict with the code 206 * that follows */ 207 int function_brace_split; /* split function declaration and 208 * brace onto separate lines */ 209 int use_tabs; /* set true to use tabs for spacing, 210 * false uses all spaces */ 211 int auto_typedefs; /* set true to recognize identifiers 212 * ending in "_t" like typedefs */ 213 int space_after_cast; /* "b = (int) a" vs "b = (int)a" */ 214 int tabsize; /* the size of a tab */ 215 216 /* -troff font state information */ 217 218 struct fstate { 219 char font[4]; 220 char size; 221 int allcaps:1; 222 } __aligned(sizeof(int)); 223 char *chfont(struct fstate *, struct fstate *, char *); 224 225 struct fstate 226 keywordf, /* keyword font */ 227 stringf, /* string font */ 228 boxcomf, /* Box comment font */ 229 blkcomf, /* Block comment font */ 230 scomf, /* Same line comment font */ 231 bodyf; /* major body font */ 232 233 234 #define STACKSIZE 256 235 236 struct parser_state { 237 int last_token; 238 struct fstate cfont; /* Current font */ 239 int p_stack[STACKSIZE]; /* this is the parsers stack */ 240 int il[STACKSIZE]; /* this stack stores indentation levels */ 241 float cstk[STACKSIZE];/* used to store case stmt indentation levels */ 242 int box_com; /* set to true when we are in a "boxed" 243 * comment. In that case, the first non-blank 244 * char should be lined up with the / in / followed by * */ 245 int comment_delta, 246 n_comment_delta; 247 int cast_mask; /* indicates which close parens potentially 248 * close off casts */ 249 int not_cast_mask; /* indicates which close parens definitely 250 * close off something else than casts */ 251 int block_init; /* true iff inside a block initialization */ 252 int block_init_level; /* The level of brace nesting in an 253 * initialization */ 254 int last_nl; /* this is true if the last thing scanned was 255 * a newline */ 256 int in_or_st; /* Will be true iff there has been a 257 * declarator (e.g. int or char) and no left 258 * paren since the last semicolon. When true, 259 * a '{' is starting a structure definition or 260 * an initialization list */ 261 int bl_line; /* set to 1 by dump_line if the line is blank */ 262 int col_1; /* set to true if the last token started in 263 * column 1 */ 264 int com_col; /* this is the column in which the current 265 * comment should start */ 266 int com_ind; /* the column in which comments to the right 267 * of code should start */ 268 int com_lines; /* the number of lines with comments, set by 269 * dump_line */ 270 int dec_nest; /* current nesting level for structure or init */ 271 int decl_com_ind; /* the column in which comments after 272 * declarations should be put */ 273 int decl_on_line; /* set to true if this line of code has part 274 * of a declaration on it */ 275 int i_l_follow; /* the level to which ind_level should be set 276 * after the current line is printed */ 277 int in_decl; /* set to true when we are in a declaration 278 * stmt. The processing of braces is then 279 * slightly different */ 280 int in_stmt; /* set to 1 while in a stmt */ 281 int ind_level; /* the current indentation level */ 282 int ind_size; /* the size of one indentation level */ 283 int ind_stmt; /* set to 1 if next line should have an extra 284 * indentation level because we are in the 285 * middle of a stmt */ 286 int last_u_d; /* set to true after scanning a token which 287 * forces a following operator to be unary */ 288 int leave_comma; /* if true, never break declarations after 289 * commas */ 290 int ljust_decl; /* true if declarations should be left 291 * justified */ 292 int out_coms; /* the number of comments processed, set by 293 * pr_comment */ 294 int out_lines; /* the number of lines written, set by 295 * dump_line */ 296 int p_l_follow; /* used to remember how to indent following 297 * statement */ 298 int paren_level; /* parenthesization level. used to indent 299 * within statements */ 300 short paren_indents[20]; /* column positions of each paren */ 301 int pcase; /* set to 1 if the current line label is a 302 * case. It is printed differently from a 303 * regular label */ 304 int search_brace; /* set to true by parse when it is necessary 305 * to buffer up all info up to the start of a 306 * stmt after an if, while, etc */ 307 int unindent_displace; /* comments not to the right of code 308 * will be placed this many 309 * indentation levels to the left of 310 * code */ 311 int use_ff; /* set to one if the current line should be 312 * terminated with a form feed */ 313 int want_blank; /* set to true when the following token should 314 * be prefixed by a blank. (Said prefixing is 315 * ignored in some cases.) */ 316 int else_if; /* True iff else if pairs should be handled 317 * specially */ 318 int decl_indent; /* column to indent declared identifiers to */ 319 int local_decl_indent; /* like decl_indent but for locals */ 320 int keyword; /* the type of a keyword or 0 */ 321 int dumped_decl_indent; 322 float case_indent; /* The distance to indent case labels from the 323 * switch statement */ 324 int in_parameter_declaration; 325 int indent_parameters; 326 int tos; /* pointer to top of stack */ 327 char procname[100]; /* The name of the current procedure */ 328 int just_saw_decl; 329 } ps; 330 331 int ifdef_level; 332 struct parser_state state_stack[5]; 333 struct parser_state match_state[5]; 334