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