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 46 #define false 0 47 #define true 1 48 49 50 FILE *input; /* the fid for the input file */ 51 FILE *output; /* the output file */ 52 53 #define CHECK_SIZE_CODE \ 54 if (e_code >= l_code) { \ 55 int nsize = l_code-s_code+400; \ 56 int code_len = e_code-s_code; \ 57 codebuf = (char *) realloc(codebuf, nsize); \ 58 if (codebuf == NULL) \ 59 err(1, NULL); \ 60 e_code = codebuf + code_len + 1; \ 61 l_code = codebuf + nsize - 5; \ 62 s_code = codebuf + 1; \ 63 } 64 #define CHECK_SIZE_COM \ 65 if (e_com >= l_com) { \ 66 int nsize = l_com-s_com+400; \ 67 int com_len = e_com - s_com; \ 68 int blank_pos = last_bl - s_com; \ 69 combuf = (char *) realloc(combuf, nsize); \ 70 if (combuf == NULL) \ 71 err(1, NULL); \ 72 e_com = combuf + com_len + 1; \ 73 last_bl = combuf + blank_pos + 1; \ 74 l_com = combuf + nsize - 5; \ 75 s_com = combuf + 1; \ 76 } 77 #define CHECK_SIZE_LAB \ 78 if (e_lab >= l_lab) { \ 79 int nsize = l_lab-s_lab+400; \ 80 int label_len = e_lab - s_lab; \ 81 labbuf = (char *) realloc(labbuf, nsize); \ 82 if (labbuf == NULL) \ 83 err(1, NULL); \ 84 e_lab = labbuf + label_len + 1; \ 85 l_lab = labbuf + nsize - 5; \ 86 s_lab = labbuf + 1; \ 87 } 88 #define CHECK_SIZE_TOKEN \ 89 if (e_token >= l_token) { \ 90 int nsize = l_token-s_token+400; \ 91 int token_len = e_token - s_token; \ 92 tokenbuf = (char *) realloc(tokenbuf, nsize); \ 93 if (tokenbuf == NULL) \ 94 err(1, NULL); \ 95 e_token = tokenbuf + token_len + 1; \ 96 l_token = tokenbuf + nsize - 5; \ 97 s_token = tokenbuf + 1; \ 98 } 99 100 char *labbuf; /* buffer for label */ 101 char *s_lab; /* start ... */ 102 char *e_lab; /* .. and end of stored label */ 103 char *l_lab; /* limit of label buffer */ 104 105 char *codebuf; /* buffer for code section */ 106 char *s_code; /* start ... */ 107 char *e_code; /* .. and end of stored code */ 108 char *l_code; /* limit of code section */ 109 110 char *combuf; /* buffer for comments */ 111 char *s_com; /* start ... */ 112 char *e_com; /* ... and end of stored comments */ 113 char *l_com; /* limit of comment buffer */ 114 115 #define token s_token 116 char *tokenbuf; /* the last token scanned */ 117 char *s_token; 118 char *e_token; 119 char *l_token; 120 121 char *in_buffer; /* input buffer */ 122 char *in_buffer_limit; /* the end of the input buffer */ 123 char *buf_ptr; /* ptr to next character to be taken from 124 * in_buffer */ 125 char *buf_end; /* ptr to first after last char in in_buffer */ 126 127 char save_com[sc_size]; /* input text is saved here when looking for 128 * the brace after an if, while, etc */ 129 char *sc_end; /* pointer into save_com buffer */ 130 131 char *bp_save; /* saved value of buf_ptr when taking input 132 * from save_com */ 133 char *be_save; /* similarly saved value of buf_end */ 134 135 136 int found_err; 137 int pointer_as_binop; 138 int blanklines_after_declarations; 139 int blanklines_before_blockcomments; 140 int blanklines_after_procs; 141 int blanklines_around_conditional_compilation; 142 int swallow_optional_blanklines; 143 int n_real_blanklines; 144 int prefix_blankline_requested; 145 int postfix_blankline_requested; 146 int break_comma; /* when true and not in parens, break after a 147 * comma */ 148 int btype_2; /* when true, brace should be on same line as 149 * if, while, etc */ 150 float case_ind; /* indentation level to be used for a "case 151 * n:" */ 152 int code_lines; /* count of lines with code */ 153 int had_eof; /* set to true when input is exhausted */ 154 int line_no; /* the current line number. */ 155 int max_col; /* the maximum allowable line length */ 156 int verbose; /* when true, non-essential error messages are 157 * printed */ 158 int cuddle_else; /* true if else should cuddle up to '}' */ 159 int star_comment_cont; /* true iff comment continuation lines should 160 * have stars at the beginning of each line. */ 161 int comment_delimiter_on_blankline; 162 int troff; /* true iff were generating troff input */ 163 int procnames_start_line; /* if true, the names of procedures 164 * being defined get placed in column 165 * 1 (ie. a newline is placed between 166 * the type of the procedure and its 167 * name) */ 168 int proc_calls_space; /* If true, procedure calls look like: 169 * foo(bar) rather than foo (bar) */ 170 int format_block_comments; /* true if comments beginning with 171 * `/ * \n' are to be reformatted */ 172 int format_col1_comments; /* If comments which start in column 1 173 * are to be magically reformatted 174 * (just like comments that begin in 175 * later columns) */ 176 int inhibit_formatting; /* true if INDENT OFF is in effect */ 177 int suppress_blanklines;/* set iff following blanklines should be 178 * suppressed */ 179 int continuation_indent;/* set to the indentation between the edge of 180 * code and continuation lines */ 181 int lineup_to_parens; /* if true, continued code within parens will 182 * be lined up to the open paren */ 183 int Bill_Shannon; /* true iff a blank should always be inserted 184 * after sizeof */ 185 int blanklines_after_declarations_at_proctop; /* This is vaguely 186 * similar to 187 * blanklines_after_decla 188 * rations except that 189 * it only applies to 190 * the first set of 191 * declarations in a 192 * procedure (just after 193 * the first '{') and it 194 * causes a blank line 195 * to be generated even 196 * if there are no 197 * declarations */ 198 int block_comment_max_col; 199 int extra_expression_indent; /* true if continuation lines from the 200 * expression part of "if(e)", 201 * "while(e)", "for(e;e;e)" should be 202 * indented an extra tab stop so that 203 * they don't conflict with the code 204 * that follows */ 205 int function_brace_split; /* split function declaration and 206 * brace onto separate lines */ 207 int use_tabs; /* set true to use tabs for spacing, 208 * false uses all spaces */ 209 int auto_typedefs; /* set true to recognize identifiers 210 * ending in "_t" like typedefs */ 211 int space_after_cast; /* "b = (int) a" vs "b = (int)a" */ 212 int tabsize; /* the size of a tab */ 213 214 /* -troff font state information */ 215 216 struct fstate { 217 char font[4]; 218 char size; 219 int allcaps:1; 220 } __aligned(sizeof(int)); 221 char *chfont(struct fstate *, struct fstate *, char *); 222 223 struct fstate 224 keywordf, /* keyword font */ 225 stringf, /* string font */ 226 boxcomf, /* Box comment font */ 227 blkcomf, /* Block comment font */ 228 scomf, /* Same line comment font */ 229 bodyf; /* major body font */ 230 231 232 #define STACKSIZE 256 233 234 struct parser_state { 235 int last_token; 236 struct fstate cfont; /* Current font */ 237 int p_stack[STACKSIZE]; /* this is the parsers stack */ 238 int il[STACKSIZE]; /* this stack stores indentation levels */ 239 float cstk[STACKSIZE];/* used to store case stmt indentation levels */ 240 int box_com; /* set to true when we are in a "boxed" 241 * comment. In that case, the first non-blank 242 * char should be lined up with the / in / followed by * */ 243 int comment_delta, 244 n_comment_delta; 245 int cast_mask; /* indicates which close parens potentially 246 * close off casts */ 247 int not_cast_mask; /* indicates which close parens definitely 248 * close off something else than casts */ 249 int block_init; /* true iff inside a block initialization */ 250 int block_init_level; /* The level of brace nesting in an 251 * initialization */ 252 int last_nl; /* this is true if the last thing scanned was 253 * a newline */ 254 int in_or_st; /* Will be true iff there has been a 255 * declarator (e.g. int or char) and no left 256 * paren since the last semicolon. When true, 257 * a '{' is starting a structure definition or 258 * an initialization list */ 259 int bl_line; /* set to 1 by dump_line if the line is blank */ 260 int col_1; /* set to true if the last token started in 261 * column 1 */ 262 int com_col; /* this is the column in which the current 263 * comment should start */ 264 int com_ind; /* the column in which comments to the right 265 * of code should start */ 266 int com_lines; /* the number of lines with comments, set by 267 * dump_line */ 268 int dec_nest; /* current nesting level for structure or init */ 269 int decl_com_ind; /* the column in which comments after 270 * declarations should be put */ 271 int decl_on_line; /* set to true if this line of code has part 272 * of a declaration on it */ 273 int i_l_follow; /* the level to which ind_level should be set 274 * after the current line is printed */ 275 int in_decl; /* set to true when we are in a declaration 276 * stmt. The processing of braces is then 277 * slightly different */ 278 int in_stmt; /* set to 1 while in a stmt */ 279 int ind_level; /* the current indentation level */ 280 int ind_size; /* the size of one indentation level */ 281 int ind_stmt; /* set to 1 if next line should have an extra 282 * indentation level because we are in the 283 * middle of a stmt */ 284 int last_u_d; /* set to true after scanning a token which 285 * forces a following operator to be unary */ 286 int leave_comma; /* if true, never break declarations after 287 * commas */ 288 int ljust_decl; /* true if declarations should be left 289 * justified */ 290 int out_coms; /* the number of comments processed, set by 291 * pr_comment */ 292 int out_lines; /* the number of lines written, set by 293 * dump_line */ 294 int p_l_follow; /* used to remember how to indent following 295 * statement */ 296 int paren_level; /* parenthesization level. used to indent 297 * within statements */ 298 short paren_indents[20]; /* column positions of each paren */ 299 int pcase; /* set to 1 if the current line label is a 300 * case. It is printed differently from a 301 * regular label */ 302 int search_brace; /* set to true by parse when it is necessary 303 * to buffer up all info up to the start of a 304 * stmt after an if, while, etc */ 305 int unindent_displace; /* comments not to the right of code 306 * will be placed this many 307 * indentation levels to the left of 308 * code */ 309 int use_ff; /* set to one if the current line should be 310 * terminated with a form feed */ 311 int want_blank; /* set to true when the following token should 312 * be prefixed by a blank. (Said prefixing is 313 * ignored in some cases.) */ 314 int else_if; /* True iff else if pairs should be handled 315 * specially */ 316 int decl_indent; /* column to indent declared identifiers to */ 317 int local_decl_indent; /* like decl_indent but for locals */ 318 int keyword; /* the type of a keyword or 0 */ 319 int dumped_decl_indent; 320 float case_indent; /* The distance to indent case labels from the 321 * switch statement */ 322 int in_parameter_declaration; 323 int indent_parameters; 324 int tos; /* pointer to top of stack */ 325 char procname[100]; /* The name of the current procedure */ 326 int just_saw_decl; 327 } ps; 328 329 int ifdef_level; 330 struct parser_state state_stack[5]; 331 struct parser_state match_state[5]; 332