1 /* 2 * Copyright (c) 1985 Sun Microsystems, Inc. 3 * Copyright (c) 1980 The Regents of the University of California. 4 * Copyright (c) 1976 Board of Trustees of the University of Illinois. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms are permitted 8 * provided that the above copyright notice and this paragraph are 9 * duplicated in all such forms and that any documentation, 10 * advertising materials, and other materials related to such 11 * distribution and use acknowledge that the software was developed 12 * by the University of California, Berkeley, the University of Illinois, 13 * Urbana, and Sun Microsystems, Inc. The name of either University 14 * or Sun Microsystems may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 19 * 20 * @(#)indent_globs.h 5.9 (Berkeley) 03/05/90 21 */ 22 23 #include <stdio.h> 24 25 #define BACKSLASH '\\' 26 #define bufsize 200 /* size of internal buffers */ 27 #define sc_size 5000 /* size of save_com buffer */ 28 #define label_offset 2 /* number of levels a label is placed to left 29 * of code */ 30 31 #define tabsize 8 /* the size of a tab */ 32 #define tabmask 0177770 /* mask used when figuring length of lines 33 * with tabs */ 34 35 36 #define false 0 37 #define true 1 38 39 40 FILE *input; /* the fid for the input file */ 41 FILE *output; /* the output file */ 42 43 #define CHECK_SIZE_CODE \ 44 if (e_code >= l_code) { \ 45 register nsize = l_code-s_code+400; \ 46 codebuf = (char *) realloc(codebuf, nsize); \ 47 e_code = codebuf + (e_code-s_code) + 1; \ 48 l_code = codebuf + nsize - 5; \ 49 s_code = codebuf + 1; \ 50 } 51 #define CHECK_SIZE_COM \ 52 if (e_com >= l_com) { \ 53 register nsize = l_com-s_com+400; \ 54 combuf = (char *) realloc(combuf, nsize); \ 55 e_com = combuf + (e_com-s_com) + 1; \ 56 l_com = combuf + nsize - 5; \ 57 s_com = combuf + 1; \ 58 } 59 #define CHECK_SIZE_LAB \ 60 if (e_lab >= l_lab) { \ 61 register nsize = l_lab-s_lab+400; \ 62 labbuf = (char *) realloc(labbuf, nsize); \ 63 e_lab = labbuf + (e_lab-s_lab) + 1; \ 64 l_lab = labbuf + nsize - 5; \ 65 s_lab = labbuf + 1; \ 66 } 67 #define CHECK_SIZE_TOKEN \ 68 if (e_token >= l_token) { \ 69 register nsize = l_token-s_token+400; \ 70 tokenbuf = (char *) realloc(tokenbuf, nsize); \ 71 e_token = tokenbuf + (e_token-s_token) + 1; \ 72 l_token = tokenbuf + nsize - 5; \ 73 s_token = tokenbuf + 1; \ 74 } 75 76 char *labbuf; /* buffer for label */ 77 char *s_lab; /* start ... */ 78 char *e_lab; /* .. and end of stored label */ 79 char *l_lab; /* limit of label buffer */ 80 81 char *codebuf; /* buffer for code section */ 82 char *s_code; /* start ... */ 83 char *e_code; /* .. and end of stored code */ 84 char *l_code; /* limit of code section */ 85 86 char *combuf; /* buffer for comments */ 87 char *s_com; /* start ... */ 88 char *e_com; /* ... and end of stored comments */ 89 char *l_com; /* limit of comment buffer */ 90 91 #define token s_token 92 char *tokenbuf; /* the last token scanned */ 93 char *s_token; 94 char *e_token; 95 char *l_token; 96 97 char *in_buffer; /* input buffer */ 98 char *in_buffer_limit; /* the end of the input buffer */ 99 char *buf_ptr; /* ptr to next character to be taken from 100 * in_buffer */ 101 char *buf_end; /* ptr to first after last char in in_buffer */ 102 103 char save_com[sc_size]; /* input text is saved here when looking for 104 * the brace after an if, while, etc */ 105 char *sc_end; /* pointer into save_com buffer */ 106 107 char *bp_save; /* saved value of buf_ptr when taking input 108 * from save_com */ 109 char *be_save; /* similarly saved value of buf_end */ 110 111 112 int pointer_as_binop; 113 int blanklines_after_declarations; 114 int blanklines_before_blockcomments; 115 int blanklines_after_procs; 116 int blanklines_around_conditional_compilation; 117 int swallow_optional_blanklines; 118 int n_real_blanklines; 119 int prefix_blankline_requested; 120 int postfix_blankline_requested; 121 int break_comma; /* when true and not in parens, break after a 122 * comma */ 123 int btype_2; /* when true, brace should be on same line as 124 * if, while, etc */ 125 float case_ind; /* indentation level to be used for a "case 126 * n:" */ 127 int code_lines; /* count of lines with code */ 128 int had_eof; /* set to true when input is exhausted */ 129 int line_no; /* the current line number. */ 130 int max_col; /* the maximum allowable line length */ 131 int verbose; /* when true, non-essential error messages are 132 * printed */ 133 int cuddle_else; /* true if else should cuddle up to '}' */ 134 int star_comment_cont; /* true iff comment continuation lines should 135 * have stars at the beginning of each line. */ 136 int comment_delimiter_on_blankline; 137 int troff; /* true iff were generating troff input */ 138 int procnames_start_line; /* if true, the names of procedures 139 * being defined get placed in column 140 * 1 (ie. a newline is placed between 141 * the type of the procedure and its 142 * name) */ 143 int proc_calls_space; /* If true, procedure calls look like: 144 * foo(bar) rather than foo (bar) */ 145 int format_col1_comments; /* If comments which start in column 1 146 * are to be magically reformatted 147 * (just like comments that begin in 148 * later columns) */ 149 int inhibit_formatting; /* true if INDENT OFF is in effect */ 150 int suppress_blanklines;/* set iff following blanklines should be 151 * suppressed */ 152 int continuation_indent;/* set to the indentation between the edge of 153 * code and continuation lines */ 154 int lineup_to_parens; /* if true, continued code within parens will 155 * be lined up to the open paren */ 156 int Bill_Shannon; /* true iff a blank should always be inserted 157 * after sizeof */ 158 int blanklines_after_declarations_at_proctop; /* This is vaguely 159 * similar to 160 * blanklines_after_decla 161 * rations except that 162 * it only applies to 163 * the first set of 164 * declarations in a 165 * procedure (just after 166 * the first '{') and it 167 * causes a blank line 168 * to be generated even 169 * if there are no 170 * declarations */ 171 int block_comment_max_col; 172 int extra_expression_indent; /* True if continuation lines from the 173 * expression part of "if(e)", 174 * "while(e)", "for(e;e;e)" should be 175 * indented an extra tab stop so that 176 * they don't conflict with the code 177 * that follows */ 178 179 /* -troff font state information */ 180 181 struct fstate { 182 char font[4]; 183 char size; 184 int allcaps:1; 185 }; 186 char *chfont(); 187 188 struct fstate 189 keywordf, /* keyword font */ 190 stringf, /* string font */ 191 boxcomf, /* Box comment font */ 192 blkcomf, /* Block comment font */ 193 scomf, /* Same line comment font */ 194 bodyf; /* major body font */ 195 196 197 #define STACKSIZE 150 198 199 struct parser_state { 200 int last_token; 201 struct fstate cfont; /* Current font */ 202 int p_stack[STACKSIZE]; /* this is the parsers stack */ 203 int il[STACKSIZE]; /* this stack stores indentation levels */ 204 float cstk[STACKSIZE];/* used to store case stmt indentation levels */ 205 int box_com; /* set to true when we are in a "boxed" 206 * comment. In that case, the first non-blank 207 * char should be lined up with the / in /* */ 208 int comment_delta, 209 n_comment_delta; 210 int cast_mask; /* indicates which close parens close off 211 * casts */ 212 int sizeof_mask; /* indicates which close parens close off 213 * sizeof''s */ 214 int block_init; /* true iff inside a block initialization */ 215 int block_init_level; /* The level of brace nesting in an 216 * initialization */ 217 int last_nl; /* this is true if the last thing scanned was 218 * a newline */ 219 int in_or_st; /* Will be true iff there has been a 220 * declarator (e.g. int or char) and no left 221 * paren since the last semicolon. When true, 222 * a '{' is starting a structure definition or 223 * an initialization list */ 224 int bl_line; /* set to 1 by dump_line if the line is blank */ 225 int col_1; /* set to true if the last token started in 226 * column 1 */ 227 int com_col; /* this is the column in which the current 228 * coment should start */ 229 int com_ind; /* the column in which comments to the right 230 * of code should start */ 231 int com_lines; /* the number of lines with comments, set by 232 * dump_line */ 233 int dec_nest; /* current nesting level for structure or init */ 234 int decl_com_ind; /* the column in which comments after 235 * declarations should be put */ 236 int decl_on_line; /* set to true if this line of code has part 237 * of a declaration on it */ 238 int i_l_follow; /* the level to which ind_level should be set 239 * after the current line is printed */ 240 int in_decl; /* set to true when we are in a declaration 241 * stmt. The processing of braces is then 242 * slightly different */ 243 int in_stmt; /* set to 1 while in a stmt */ 244 int ind_level; /* the current indentation level */ 245 int ind_size; /* the size of one indentation level */ 246 int ind_stmt; /* set to 1 if next line should have an extra 247 * indentation level because we are in the 248 * middle of a stmt */ 249 int last_u_d; /* set to true after scanning a token which 250 * forces a following operator to be unary */ 251 int leave_comma; /* if true, never break declarations after 252 * commas */ 253 int ljust_decl; /* true if declarations should be left 254 * justified */ 255 int out_coms; /* the number of comments processed, set by 256 * pr_comment */ 257 int out_lines; /* the number of lines written, set by 258 * dump_line */ 259 int p_l_follow; /* used to remember how to indent following 260 * statement */ 261 int paren_level; /* parenthesization level. used to indent 262 * within stmts */ 263 short paren_indents[20]; /* column positions of each paren */ 264 int pcase; /* set to 1 if the current line label is a 265 * case. It is printed differently from a 266 * regular label */ 267 int search_brace; /* set to true by parse when it is necessary 268 * to buffer up all info up to the start of a 269 * stmt after an if, while, etc */ 270 int unindent_displace; /* comments not to the right of code 271 * will be placed this many 272 * indentation levels to the left of 273 * code */ 274 int use_ff; /* set to one if the current line should be 275 * terminated with a form feed */ 276 int want_blank; /* set to true when the following token should 277 * be prefixed by a blank. (Said prefixing is 278 * ignored in some cases.) */ 279 int else_if; /* True iff else if pairs should be handled 280 * specially */ 281 int decl_indent; /* column to indent declared identifiers to */ 282 int its_a_keyword; 283 int sizeof_keyword; 284 int dumped_decl_indent; 285 float case_indent; /* The distance to indent case labels from the 286 * switch statement */ 287 int in_parameter_declaration; 288 int indent_parameters; 289 int tos; /* pointer to top of stack */ 290 char procname[100]; /* The name of the current procedure */ 291 int just_saw_decl; 292 } ps; 293 294 int ifdef_level; 295 int rparen_count; 296 struct parser_state state_stack[5]; 297 struct parser_state match_state[5]; 298