1 /* $OpenBSD: indent_globs.h,v 1.16 2022/12/26 19:16:01 jmc Exp $ */ 2 /* 3 * Copyright (c) 1985 Sun Microsystems, Inc. 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. 6 * Copyright (c) 1976 Board of Trustees of the University of Illinois. 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. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * from: @(#)indent_globs.h 8.1 (Berkeley) 6/6/93 34 */ 35 36 #define BACKSLASH '\\' 37 #define bufsize 200 /* size of internal buffers */ 38 #define sc_size 5000 /* size of save_com buffer */ 39 #define label_offset 2 /* number of levels a label is placed to left 40 * of code */ 41 42 #define tabsize 8 /* the size of a tab */ 43 #define tabmask 0177770 /* mask used when figuring length of lines 44 * with tabs */ 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 \ 55 if (e_code >= l_code) { \ 56 int nsize = l_code-s_code+400; \ 57 \ 58 codebuf = realloc(codebuf, nsize); \ 59 if (codebuf == NULL) \ 60 err(1, NULL); \ 61 e_code = codebuf + (e_code-s_code) + 1; \ 62 l_code = codebuf + nsize - 5; \ 63 s_code = codebuf + 1; \ 64 } 65 #define CHECK_SIZE_COM \ 66 if (e_com >= l_com) { \ 67 int nsize = l_com-s_com+400; \ 68 \ 69 combuf = realloc(combuf, nsize); \ 70 if (combuf == NULL) \ 71 err(1, NULL); \ 72 e_com = combuf + (e_com-s_com) + 1; \ 73 l_com = combuf + nsize - 5; \ 74 s_com = combuf + 1; \ 75 } 76 #define CHECK_SIZE_LAB \ 77 if (e_lab >= l_lab) { \ 78 int nsize = l_lab-s_lab+400; \ 79 \ 80 labbuf = realloc(labbuf, nsize); \ 81 if (labbuf == NULL) \ 82 err(1, NULL); \ 83 e_lab = labbuf + (e_lab-s_lab) + 1; \ 84 l_lab = labbuf + nsize - 5; \ 85 s_lab = labbuf + 1; \ 86 } 87 #define CHECK_SIZE_TOKEN \ 88 if (e_token >= l_token) { \ 89 int nsize = l_token-s_token+400; \ 90 \ 91 tokenbuf = realloc(tokenbuf, nsize); \ 92 if (tokenbuf == NULL) \ 93 err(1, NULL); \ 94 e_token = tokenbuf + (e_token-s_token) + 1; \ 95 l_token = tokenbuf + nsize - 5; \ 96 s_token = tokenbuf + 1; \ 97 } 98 99 extern char *labbuf; /* buffer for label */ 100 extern char *s_lab; /* start ... */ 101 extern char *e_lab; /* .. and end of stored label */ 102 extern char *l_lab; /* limit of label buffer */ 103 104 extern char *codebuf; /* buffer for code section */ 105 extern char *s_code; /* start ... */ 106 extern char *e_code; /* .. and end of stored code */ 107 extern char *l_code; /* limit of code section */ 108 109 extern char *combuf; /* buffer for comments */ 110 extern char *s_com; /* start ... */ 111 extern char *e_com; /* ... and end of stored comments */ 112 extern char *l_com; /* limit of comment buffer */ 113 114 #define token s_token 115 extern char *tokenbuf; /* the last token scanned */ 116 extern char *s_token; 117 extern char *e_token; 118 extern char *l_token; 119 120 extern char *in_buffer; /* input buffer */ 121 extern char *in_buffer_limit; /* the end of the input buffer */ 122 extern char *buf_ptr; /* ptr to next character to be taken from 123 * in_buffer */ 124 extern char *buf_end; /* ptr to first after last char in in_buffer */ 125 126 extern char save_com[sc_size]; /* input text is saved here when looking for 127 * the brace after an if, while, etc */ 128 extern char *sc_end; /* pointer into save_com buffer */ 129 130 extern char *bp_save; /* saved value of buf_ptr when taking input 131 * from save_com */ 132 extern char *be_save; /* similarly saved value of buf_end */ 133 134 135 extern int pointer_as_binop; 136 extern int blanklines_after_declarations; 137 extern int blanklines_before_blockcomments; 138 extern int blanklines_after_procs; 139 extern int blanklines_around_conditional_compilation; 140 extern int swallow_optional_blanklines; 141 extern int n_real_blanklines; 142 extern int prefix_blankline_requested; 143 extern int postfix_blankline_requested; 144 extern int break_comma; /* when true and not in parens, break after a 145 * comma */ 146 extern int btype_2; /* when true, brace should be on same line as 147 * if, while, etc */ 148 extern float case_ind; /* indentation level to be used for a "case 149 * n:" */ 150 extern int code_lines; /* count of lines with code */ 151 extern int had_eof; /* set to true when input is exhausted */ 152 extern int line_no; /* the current line number. */ 153 extern int max_col; /* the maximum allowable line length */ 154 extern int verbose; /* when true, non-essential error messages are 155 * printed */ 156 extern int cuddle_else; /* true if else should cuddle up to '}' */ 157 extern int star_comment_cont; /* true iff comment continuation lines should 158 * have stars at the beginning of each line. */ 159 extern int comment_delimiter_on_blankline; 160 extern int troff; /* true iff were generating troff input */ 161 extern int procnames_start_line; /* if true, the names of procedures 162 * being defined get placed in column 163 * 1 (ie. a newline is placed between 164 * the type of the procedure and its 165 * name) */ 166 extern int proc_calls_space; /* If true, procedure calls look like: 167 * foo(bar) rather than foo (bar) */ 168 extern int format_col1_comments; /* If comments which start in column 1 169 * are to be magically reformatted 170 * (just like comments that begin in 171 * later columns) */ 172 extern int inhibit_formatting; /* true if INDENT OFF is in effect */ 173 extern int suppress_blanklines;/* set iff following blanklines should be 174 * suppressed */ 175 extern int continuation_indent;/* set to the indentation between the edge of 176 * code and continuation lines */ 177 extern int lineup_to_parens; /* if true, continued code within parens will 178 * be lined up to the open paren */ 179 extern int Bill_Shannon; /* true iff a blank should always be inserted 180 * after sizeof */ 181 extern int blanklines_after_declarations_at_proctop; /* This is vaguely 182 * similar to 183 * blanklines_after_decla 184 * rations except that 185 * it only applies to 186 * the first set of 187 * declarations in a 188 * procedure (just after 189 * the first '{') and it 190 * causes a blank line 191 * to be generated even 192 * if there are no 193 * declarations */ 194 extern int block_comment_max_col; 195 extern int extra_expression_indent; /* True if continuation lines from the 196 * expression part of "if(e)", 197 * "while(e)", "for(e;e;e)" should be 198 * indented an extra tab stop so that 199 * they don't conflict with the code 200 * that follows */ 201 extern int use_tabs; /* set true to use tabs for spacing, 202 * false uses all spaces */ 203 204 /* -troff font state information */ 205 206 struct fstate { 207 char font[4]; 208 char size; 209 int allcaps:1; 210 }; 211 212 extern struct fstate 213 keywordf, /* keyword font */ 214 stringf, /* string font */ 215 boxcomf, /* Box comment font */ 216 blkcomf, /* Block comment font */ 217 scomf, /* Same line comment font */ 218 bodyf; /* major body font */ 219 220 221 #define STACKSIZE 150 222 223 extern struct parser_state { 224 int last_token; 225 struct fstate cfont; /* Current font */ 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 rem */ 232 int comment_delta, 233 n_comment_delta; 234 int cast_mask; /* indicates which close parens close off 235 * casts */ 236 int sizeof_mask; /* indicates which close parens close off 237 * sizeof''s */ 238 int block_init; /* true iff inside a block initialization */ 239 int block_init_level; /* The level of brace nesting in an 240 * initialization */ 241 int last_nl; /* this is true if the last thing scanned was 242 * a newline */ 243 int in_or_st; /* Will be true iff there has been a 244 * declarator (e.g. int or char) and no left 245 * paren since the last semicolon. When true, 246 * a '{' is starting a structure definition or 247 * an initialization list */ 248 int bl_line; /* set to 1 by dump_line if the line is blank */ 249 int col_1; /* set to true if the last token started in 250 * column 1 */ 251 int com_col; /* this is the column in which the current 252 * comment should start */ 253 int com_ind; /* the column in which comments to the right 254 * of code should start */ 255 int com_lines; /* the number of lines with comments, set by 256 * dump_line */ 257 int dec_nest; /* current nesting level for structure or init */ 258 int decl_com_ind; /* the column in which comments after 259 * declarations should be put */ 260 int decl_on_line; /* set to true if this line of code has part 261 * of a declaration on it */ 262 int i_l_follow; /* the level to which ind_level should be set 263 * after the current line is printed */ 264 int in_decl; /* set to true when we are in a declaration 265 * stmt. The processing of braces is then 266 * slightly different */ 267 int in_stmt; /* set to 1 while in a stmt */ 268 int ind_level; /* the current indentation level */ 269 int ind_size; /* the size of one indentation level */ 270 int ind_stmt; /* set to 1 if next line should have an extra 271 * indentation level because we are in the 272 * middle of a stmt */ 273 int last_u_d; /* set to true after scanning a token which 274 * forces a following operator to be unary */ 275 int leave_comma; /* if true, never break declarations after 276 * commas */ 277 int ljust_decl; /* true if declarations should be left 278 * justified */ 279 int out_coms; /* the number of comments processed, set by 280 * pr_comment */ 281 int out_lines; /* the number of lines written, set by 282 * dump_line */ 283 int p_l_follow; /* used to remember how to indent following 284 * statement */ 285 int paren_level; /* parenthesization level. used to indent 286 * within stmts */ 287 short paren_indents[20]; /* column positions of each paren */ 288 int pcase; /* set to 1 if the current line label is a 289 * case. It is printed differently from a 290 * regular label */ 291 int search_brace; /* set to true by parse when it is necessary 292 * to buffer up all info up to the start of a 293 * stmt after an if, while, etc */ 294 int unindent_displace; /* comments not to the right of code 295 * will be placed this many 296 * indentation levels to the left of 297 * code */ 298 int use_ff; /* set to one if the current line should be 299 * terminated with a form feed */ 300 int want_blank; /* set to true when the following token should 301 * be prefixed by a blank. (Said prefixing is 302 * ignored in some cases.) */ 303 int else_if; /* True iff else if pairs should be handled 304 * specially */ 305 int decl_indent; /* column to indent declared identifiers to */ 306 int its_a_keyword; 307 int sizeof_keyword; 308 int dumped_decl_indent; 309 float case_indent; /* The distance to indent case labels from the 310 * switch statement */ 311 int in_parameter_declaration; 312 int indent_parameters; 313 int tos; /* pointer to top of stack */ 314 char procname[100]; /* The name of the current procedure */ 315 int just_saw_decl; 316 } ps; 317 318 extern int ifdef_level; 319 extern int rparen_count; 320 extern struct parser_state state_stack[5]; 321 extern struct parser_state match_state[5]; 322 323 int compute_code_target(void); 324 int compute_label_target(void); 325 int count_spaces(int, char *); 326 void diag(int, const char *, ...) __attribute__((__format__ (printf, 2, 3))); 327 void dump_line(void); 328 int eqin(char *, char *); 329 void fill_buffer(void); 330 int pad_output(int, int); 331 void scan_profile(FILE *); 332 void set_defaults(void); 333 void set_option(char *); 334 void addkey(char *, int); 335 void set_profile(void); 336 char *chfont(struct fstate *, struct fstate *, char *); 337 void parsefont(struct fstate *, char *); 338 void writefdef(struct fstate *, int); 339 int lexi(void); 340 void reduce(void); 341 void parse(int); 342 void pr_comment(void); 343 void bakcopy(void); 344