1 /*- 2 * Copyright (c) 1985 Sun Microsystems, Inc. 3 * Copyright (c) 1980, 1993 4 * The Regents of the University of California. All rights reserved. 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 * @(#)indent_globs.h 8.1 (Berkeley) 6/6/93 36 * $FreeBSD$ 37 */ 38 39 #define BACKSLASH '\\' 40 #define bufsize 200 /* size of internal buffers */ 41 #define sc_size 5000 /* size of save_com buffer */ 42 #define label_offset 2 /* number of levels a label is placed to left 43 * of code */ 44 45 #define tabsize 8 /* the size of a tab */ 46 #define tabmask 0177770 /* mask used when figuring length of lines 47 * with tabs */ 48 49 50 #define false 0 51 #define true 1 52 53 54 FILE *input; /* the fid for the input file */ 55 FILE *output; /* the output file */ 56 57 #define CHECK_SIZE_CODE \ 58 if (e_code >= l_code) { \ 59 int nsize = l_code-s_code+400; \ 60 int code_len = e_code-s_code; \ 61 codebuf = (char *) realloc(codebuf, nsize); \ 62 if (codebuf == NULL) \ 63 err(1, NULL); \ 64 e_code = codebuf + code_len + 1; \ 65 l_code = codebuf + nsize - 5; \ 66 s_code = codebuf + 1; \ 67 } 68 #define CHECK_SIZE_COM \ 69 if (e_com >= l_com) { \ 70 int nsize = l_com-s_com+400; \ 71 int com_len = e_com - s_com; \ 72 int blank_pos = last_bl - s_com; \ 73 combuf = (char *) realloc(combuf, nsize); \ 74 if (combuf == NULL) \ 75 err(1, NULL); \ 76 e_com = combuf + com_len + 1; \ 77 last_bl = combuf + blank_pos + 1; \ 78 l_com = combuf + nsize - 5; \ 79 s_com = combuf + 1; \ 80 } 81 #define CHECK_SIZE_LAB \ 82 if (e_lab >= l_lab) { \ 83 int nsize = l_lab-s_lab+400; \ 84 int label_len = e_lab - s_lab; \ 85 labbuf = (char *) realloc(labbuf, nsize); \ 86 if (labbuf == NULL) \ 87 err(1, NULL); \ 88 e_lab = labbuf + label_len + 1; \ 89 l_lab = labbuf + nsize - 5; \ 90 s_lab = labbuf + 1; \ 91 } 92 #define CHECK_SIZE_TOKEN \ 93 if (e_token >= l_token) { \ 94 int nsize = l_token-s_token+400; \ 95 int token_len = e_token - s_token; \ 96 tokenbuf = (char *) realloc(tokenbuf, nsize); \ 97 if (tokenbuf == NULL) \ 98 err(1, NULL); \ 99 e_token = tokenbuf + token_len + 1; \ 100 l_token = tokenbuf + nsize - 5; \ 101 s_token = tokenbuf + 1; \ 102 } 103 104 char *labbuf; /* buffer for label */ 105 char *s_lab; /* start ... */ 106 char *e_lab; /* .. and end of stored label */ 107 char *l_lab; /* limit of label buffer */ 108 109 char *codebuf; /* buffer for code section */ 110 char *s_code; /* start ... */ 111 char *e_code; /* .. and end of stored code */ 112 char *l_code; /* limit of code section */ 113 114 char *combuf; /* buffer for comments */ 115 char *s_com; /* start ... */ 116 char *e_com; /* ... and end of stored comments */ 117 char *l_com; /* limit of comment buffer */ 118 119 #define token s_token 120 char *tokenbuf; /* the last token scanned */ 121 char *s_token; 122 char *e_token; 123 char *l_token; 124 125 char *in_buffer; /* input buffer */ 126 char *in_buffer_limit; /* the end of the input buffer */ 127 char *buf_ptr; /* ptr to next character to be taken from 128 * in_buffer */ 129 char *buf_end; /* ptr to first after last char in in_buffer */ 130 131 char save_com[sc_size]; /* input text is saved here when looking for 132 * the brace after an if, while, etc */ 133 char *sc_end; /* pointer into save_com buffer */ 134 135 char *bp_save; /* saved value of buf_ptr when taking input 136 * from save_com */ 137 char *be_save; /* similarly saved value of buf_end */ 138 139 140 int found_err; 141 int pointer_as_binop; 142 int blanklines_after_declarations; 143 int blanklines_before_blockcomments; 144 int blanklines_after_procs; 145 int blanklines_around_conditional_compilation; 146 int swallow_optional_blanklines; 147 int n_real_blanklines; 148 int prefix_blankline_requested; 149 int postfix_blankline_requested; 150 int break_comma; /* when true and not in parens, break after a 151 * comma */ 152 int btype_2; /* when true, brace should be on same line as 153 * if, while, etc */ 154 float case_ind; /* indentation level to be used for a "case 155 * n:" */ 156 int code_lines; /* count of lines with code */ 157 int had_eof; /* set to true when input is exhausted */ 158 int line_no; /* the current line number. */ 159 int max_col; /* the maximum allowable line length */ 160 int verbose; /* when true, non-essential error messages are 161 * printed */ 162 int cuddle_else; /* true if else should cuddle up to '}' */ 163 int star_comment_cont; /* true iff comment continuation lines should 164 * have stars at the beginning of each line. */ 165 int comment_delimiter_on_blankline; 166 int troff; /* true iff were generating troff input */ 167 int procnames_start_line; /* if true, the names of procedures 168 * being defined get placed in column 169 * 1 (ie. a newline is placed between 170 * the type of the procedure and its 171 * name) */ 172 int proc_calls_space; /* If true, procedure calls look like: 173 * foo(bar) rather than foo (bar) */ 174 int format_block_comments; /* true if comments beginning with 175 * `/ * \n' are to be reformatted */ 176 int format_col1_comments; /* If comments which start in column 1 177 * are to be magically reformatted 178 * (just like comments that begin in 179 * later columns) */ 180 int inhibit_formatting; /* true if INDENT OFF is in effect */ 181 int suppress_blanklines;/* set iff following blanklines should be 182 * suppressed */ 183 int continuation_indent;/* set to the indentation between the edge of 184 * code and continuation lines */ 185 int lineup_to_parens; /* if true, continued code within parens will 186 * be lined up to the open paren */ 187 int Bill_Shannon; /* true iff a blank should always be inserted 188 * after sizeof */ 189 int blanklines_after_declarations_at_proctop; /* This is vaguely 190 * similar to 191 * blanklines_after_decla 192 * rations except that 193 * it only applies to 194 * the first set of 195 * declarations in a 196 * procedure (just after 197 * the first '{') and it 198 * causes a blank line 199 * to be generated even 200 * if there are no 201 * declarations */ 202 int block_comment_max_col; 203 int extra_expression_indent; /* true if continuation lines from the 204 * expression part of "if(e)", 205 * "while(e)", "for(e;e;e)" should be 206 * indented an extra tab stop so that 207 * they don't conflict with the code 208 * that follows */ 209 int function_brace_split; /* split function declaration and 210 * brace onto separate lines */ 211 int use_tabs; /* set true to use tabs for spacing, 212 * false uses all spaces */ 213 int auto_typedefs; /* set true to recognize identifiers 214 * ending in "_t" like typedefs */ 215 int space_after_cast; /* "b = (int) a" vs "b = (int)a" */ 216 217 /* -troff font state information */ 218 219 struct fstate { 220 char font[4]; 221 char size; 222 int allcaps:1; 223 } __aligned(sizeof(int)); 224 char *chfont(struct fstate *, struct fstate *, char *); 225 226 struct fstate 227 keywordf, /* keyword font */ 228 stringf, /* string font */ 229 boxcomf, /* Box comment font */ 230 blkcomf, /* Block comment font */ 231 scomf, /* Same line comment font */ 232 bodyf; /* major body font */ 233 234 235 #define STACKSIZE 256 236 237 struct parser_state { 238 int last_token; 239 struct fstate cfont; /* Current font */ 240 int p_stack[STACKSIZE]; /* this is the parsers stack */ 241 int il[STACKSIZE]; /* this stack stores indentation levels */ 242 float cstk[STACKSIZE];/* used to store case stmt indentation levels */ 243 int box_com; /* set to true when we are in a "boxed" 244 * comment. In that case, the first non-blank 245 * char should be lined up with the / in / followed by * */ 246 int comment_delta, 247 n_comment_delta; 248 int cast_mask; /* indicates which close parens potentially 249 * close off casts */ 250 int not_cast_mask; /* indicates which close parens definitely 251 * close off something else than casts */ 252 int block_init; /* true iff inside a block initialization */ 253 int block_init_level; /* The level of brace nesting in an 254 * initialization */ 255 int last_nl; /* this is true if the last thing scanned was 256 * a newline */ 257 int in_or_st; /* Will be true iff there has been a 258 * declarator (e.g. int or char) and no left 259 * paren since the last semicolon. When true, 260 * a '{' is starting a structure definition or 261 * an initialization list */ 262 int bl_line; /* set to 1 by dump_line if the line is blank */ 263 int col_1; /* set to true if the last token started in 264 * column 1 */ 265 int com_col; /* this is the column in which the current 266 * comment should start */ 267 int com_ind; /* the column in which comments to the right 268 * of code should start */ 269 int com_lines; /* the number of lines with comments, set by 270 * dump_line */ 271 int dec_nest; /* current nesting level for structure or init */ 272 int decl_com_ind; /* the column in which comments after 273 * declarations should be put */ 274 int decl_on_line; /* set to true if this line of code has part 275 * of a declaration on it */ 276 int i_l_follow; /* the level to which ind_level should be set 277 * after the current line is printed */ 278 int in_decl; /* set to true when we are in a declaration 279 * stmt. The processing of braces is then 280 * slightly different */ 281 int in_stmt; /* set to 1 while in a stmt */ 282 int ind_level; /* the current indentation level */ 283 int ind_size; /* the size of one indentation level */ 284 int ind_stmt; /* set to 1 if next line should have an extra 285 * indentation level because we are in the 286 * middle of a stmt */ 287 int last_u_d; /* set to true after scanning a token which 288 * forces a following operator to be unary */ 289 int leave_comma; /* if true, never break declarations after 290 * commas */ 291 int ljust_decl; /* true if declarations should be left 292 * justified */ 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 unindent_displace; /* comments not to the right of code 309 * will be placed this many 310 * indentation levels to the left of 311 * code */ 312 int use_ff; /* set to one if the current line should be 313 * terminated with a form feed */ 314 int want_blank; /* set to true when the following token should 315 * be prefixed by a blank. (Said prefixing is 316 * ignored in some cases.) */ 317 int else_if; /* True iff else if pairs should be handled 318 * specially */ 319 int decl_indent; /* column to indent declared identifiers to */ 320 int local_decl_indent; /* like decl_indent but for locals */ 321 int keyword; /* the type of a keyword or 0 */ 322 int dumped_decl_indent; 323 float case_indent; /* The distance to indent case labels from the 324 * switch statement */ 325 int in_parameter_declaration; 326 int indent_parameters; 327 int tos; /* pointer to top of stack */ 328 char procname[100]; /* The name of the current procedure */ 329 int just_saw_decl; 330 } ps; 331 332 int ifdef_level; 333 int rparen_count; 334 struct parser_state state_stack[5]; 335 struct parser_state match_state[5]; 336