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 * %sccs.include.redist.c% 8 * 9 * @(#)indent_globs.h 8.1 (Berkeley) 06/06/93 10 */ 11 12 #define BACKSLASH '\\' 13 #define bufsize 200 /* size of internal buffers */ 14 #define sc_size 5000 /* size of save_com buffer */ 15 #define label_offset 2 /* number of levels a label is placed to left 16 * of code */ 17 18 #define tabsize 8 /* the size of a tab */ 19 #define tabmask 0177770 /* mask used when figuring length of lines 20 * with tabs */ 21 22 23 #define false 0 24 #define true 1 25 26 27 FILE *input; /* the fid for the input file */ 28 FILE *output; /* the output file */ 29 30 #define CHECK_SIZE_CODE \ 31 if (e_code >= l_code) { \ 32 register nsize = l_code-s_code+400; \ 33 codebuf = (char *) realloc(codebuf, nsize); \ 34 e_code = codebuf + (e_code-s_code) + 1; \ 35 l_code = codebuf + nsize - 5; \ 36 s_code = codebuf + 1; \ 37 } 38 #define CHECK_SIZE_COM \ 39 if (e_com >= l_com) { \ 40 register nsize = l_com-s_com+400; \ 41 combuf = (char *) realloc(combuf, nsize); \ 42 e_com = combuf + (e_com-s_com) + 1; \ 43 l_com = combuf + nsize - 5; \ 44 s_com = combuf + 1; \ 45 } 46 #define CHECK_SIZE_LAB \ 47 if (e_lab >= l_lab) { \ 48 register nsize = l_lab-s_lab+400; \ 49 labbuf = (char *) realloc(labbuf, nsize); \ 50 e_lab = labbuf + (e_lab-s_lab) + 1; \ 51 l_lab = labbuf + nsize - 5; \ 52 s_lab = labbuf + 1; \ 53 } 54 #define CHECK_SIZE_TOKEN \ 55 if (e_token >= l_token) { \ 56 register nsize = l_token-s_token+400; \ 57 tokenbuf = (char *) realloc(tokenbuf, nsize); \ 58 e_token = tokenbuf + (e_token-s_token) + 1; \ 59 l_token = tokenbuf + nsize - 5; \ 60 s_token = tokenbuf + 1; \ 61 } 62 63 char *labbuf; /* buffer for label */ 64 char *s_lab; /* start ... */ 65 char *e_lab; /* .. and end of stored label */ 66 char *l_lab; /* limit of label buffer */ 67 68 char *codebuf; /* buffer for code section */ 69 char *s_code; /* start ... */ 70 char *e_code; /* .. and end of stored code */ 71 char *l_code; /* limit of code section */ 72 73 char *combuf; /* buffer for comments */ 74 char *s_com; /* start ... */ 75 char *e_com; /* ... and end of stored comments */ 76 char *l_com; /* limit of comment buffer */ 77 78 #define token s_token 79 char *tokenbuf; /* the last token scanned */ 80 char *s_token; 81 char *e_token; 82 char *l_token; 83 84 char *in_buffer; /* input buffer */ 85 char *in_buffer_limit; /* the end of the input buffer */ 86 char *buf_ptr; /* ptr to next character to be taken from 87 * in_buffer */ 88 char *buf_end; /* ptr to first after last char in in_buffer */ 89 90 char save_com[sc_size]; /* input text is saved here when looking for 91 * the brace after an if, while, etc */ 92 char *sc_end; /* pointer into save_com buffer */ 93 94 char *bp_save; /* saved value of buf_ptr when taking input 95 * from save_com */ 96 char *be_save; /* similarly saved value of buf_end */ 97 98 99 int pointer_as_binop; 100 int blanklines_after_declarations; 101 int blanklines_before_blockcomments; 102 int blanklines_after_procs; 103 int blanklines_around_conditional_compilation; 104 int swallow_optional_blanklines; 105 int n_real_blanklines; 106 int prefix_blankline_requested; 107 int postfix_blankline_requested; 108 int break_comma; /* when true and not in parens, break after a 109 * comma */ 110 int btype_2; /* when true, brace should be on same line as 111 * if, while, etc */ 112 float case_ind; /* indentation level to be used for a "case 113 * n:" */ 114 int code_lines; /* count of lines with code */ 115 int had_eof; /* set to true when input is exhausted */ 116 int line_no; /* the current line number. */ 117 int max_col; /* the maximum allowable line length */ 118 int verbose; /* when true, non-essential error messages are 119 * printed */ 120 int cuddle_else; /* true if else should cuddle up to '}' */ 121 int star_comment_cont; /* true iff comment continuation lines should 122 * have stars at the beginning of each line. */ 123 int comment_delimiter_on_blankline; 124 int troff; /* true iff were generating troff input */ 125 int procnames_start_line; /* if true, the names of procedures 126 * being defined get placed in column 127 * 1 (ie. a newline is placed between 128 * the type of the procedure and its 129 * name) */ 130 int proc_calls_space; /* If true, procedure calls look like: 131 * foo(bar) rather than foo (bar) */ 132 int format_col1_comments; /* If comments which start in column 1 133 * are to be magically reformatted 134 * (just like comments that begin in 135 * later columns) */ 136 int inhibit_formatting; /* true if INDENT OFF is in effect */ 137 int suppress_blanklines;/* set iff following blanklines should be 138 * suppressed */ 139 int continuation_indent;/* set to the indentation between the edge of 140 * code and continuation lines */ 141 int lineup_to_parens; /* if true, continued code within parens will 142 * be lined up to the open paren */ 143 int Bill_Shannon; /* true iff a blank should always be inserted 144 * after sizeof */ 145 int blanklines_after_declarations_at_proctop; /* This is vaguely 146 * similar to 147 * blanklines_after_decla 148 * rations except that 149 * it only applies to 150 * the first set of 151 * declarations in a 152 * procedure (just after 153 * the first '{') and it 154 * causes a blank line 155 * to be generated even 156 * if there are no 157 * declarations */ 158 int block_comment_max_col; 159 int extra_expression_indent; /* True if continuation lines from the 160 * expression part of "if(e)", 161 * "while(e)", "for(e;e;e)" should be 162 * indented an extra tab stop so that 163 * they don't conflict with the code 164 * that follows */ 165 166 /* -troff font state information */ 167 168 struct fstate { 169 char font[4]; 170 char size; 171 int allcaps:1; 172 }; 173 char *chfont(); 174 175 struct fstate 176 keywordf, /* keyword font */ 177 stringf, /* string font */ 178 boxcomf, /* Box comment font */ 179 blkcomf, /* Block comment font */ 180 scomf, /* Same line comment font */ 181 bodyf; /* major body font */ 182 183 184 #define STACKSIZE 150 185 186 struct parser_state { 187 int last_token; 188 struct fstate cfont; /* Current font */ 189 int p_stack[STACKSIZE]; /* this is the parsers stack */ 190 int il[STACKSIZE]; /* this stack stores indentation levels */ 191 float cstk[STACKSIZE];/* used to store case stmt indentation levels */ 192 int box_com; /* set to true when we are in a "boxed" 193 * comment. In that case, the first non-blank 194 * char should be lined up with the / in /* */ 195 int comment_delta, 196 n_comment_delta; 197 int cast_mask; /* indicates which close parens close off 198 * casts */ 199 int sizeof_mask; /* indicates which close parens close off 200 * sizeof''s */ 201 int block_init; /* true iff inside a block initialization */ 202 int block_init_level; /* The level of brace nesting in an 203 * initialization */ 204 int last_nl; /* this is true if the last thing scanned was 205 * a newline */ 206 int in_or_st; /* Will be true iff there has been a 207 * declarator (e.g. int or char) and no left 208 * paren since the last semicolon. When true, 209 * a '{' is starting a structure definition or 210 * an initialization list */ 211 int bl_line; /* set to 1 by dump_line if the line is blank */ 212 int col_1; /* set to true if the last token started in 213 * column 1 */ 214 int com_col; /* this is the column in which the current 215 * coment should start */ 216 int com_ind; /* the column in which comments to the right 217 * of code should start */ 218 int com_lines; /* the number of lines with comments, set by 219 * dump_line */ 220 int dec_nest; /* current nesting level for structure or init */ 221 int decl_com_ind; /* the column in which comments after 222 * declarations should be put */ 223 int decl_on_line; /* set to true if this line of code has part 224 * of a declaration on it */ 225 int i_l_follow; /* the level to which ind_level should be set 226 * after the current line is printed */ 227 int in_decl; /* set to true when we are in a declaration 228 * stmt. The processing of braces is then 229 * slightly different */ 230 int in_stmt; /* set to 1 while in a stmt */ 231 int ind_level; /* the current indentation level */ 232 int ind_size; /* the size of one indentation level */ 233 int ind_stmt; /* set to 1 if next line should have an extra 234 * indentation level because we are in the 235 * middle of a stmt */ 236 int last_u_d; /* set to true after scanning a token which 237 * forces a following operator to be unary */ 238 int leave_comma; /* if true, never break declarations after 239 * commas */ 240 int ljust_decl; /* true if declarations should be left 241 * justified */ 242 int out_coms; /* the number of comments processed, set by 243 * pr_comment */ 244 int out_lines; /* the number of lines written, set by 245 * dump_line */ 246 int p_l_follow; /* used to remember how to indent following 247 * statement */ 248 int paren_level; /* parenthesization level. used to indent 249 * within stmts */ 250 short paren_indents[20]; /* column positions of each paren */ 251 int pcase; /* set to 1 if the current line label is a 252 * case. It is printed differently from a 253 * regular label */ 254 int search_brace; /* set to true by parse when it is necessary 255 * to buffer up all info up to the start of a 256 * stmt after an if, while, etc */ 257 int unindent_displace; /* comments not to the right of code 258 * will be placed this many 259 * indentation levels to the left of 260 * code */ 261 int use_ff; /* set to one if the current line should be 262 * terminated with a form feed */ 263 int want_blank; /* set to true when the following token should 264 * be prefixed by a blank. (Said prefixing is 265 * ignored in some cases.) */ 266 int else_if; /* True iff else if pairs should be handled 267 * specially */ 268 int decl_indent; /* column to indent declared identifiers to */ 269 int its_a_keyword; 270 int sizeof_keyword; 271 int dumped_decl_indent; 272 float case_indent; /* The distance to indent case labels from the 273 * switch statement */ 274 int in_parameter_declaration; 275 int indent_parameters; 276 int tos; /* pointer to top of stack */ 277 char procname[100]; /* The name of the current procedure */ 278 int just_saw_decl; 279 } ps; 280 281 int ifdef_level; 282 int rparen_count; 283 struct parser_state state_stack[5]; 284 struct parser_state match_state[5]; 285