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 * %sccs.include.redist.c% 8 * 9 * @(#)indent_globs.h 5.10 (Berkeley) 06/01/90 10 */ 11 12 #include <stdio.h> 13 14 #define BACKSLASH '\\' 15 #define bufsize 200 /* size of internal buffers */ 16 #define sc_size 5000 /* size of save_com buffer */ 17 #define label_offset 2 /* number of levels a label is placed to left 18 * of code */ 19 20 #define tabsize 8 /* the size of a tab */ 21 #define tabmask 0177770 /* mask used when figuring length of lines 22 * with tabs */ 23 24 25 #define false 0 26 #define true 1 27 28 29 FILE *input; /* the fid for the input file */ 30 FILE *output; /* the output file */ 31 32 #define CHECK_SIZE_CODE \ 33 if (e_code >= l_code) { \ 34 register nsize = l_code-s_code+400; \ 35 codebuf = (char *) realloc(codebuf, nsize); \ 36 e_code = codebuf + (e_code-s_code) + 1; \ 37 l_code = codebuf + nsize - 5; \ 38 s_code = codebuf + 1; \ 39 } 40 #define CHECK_SIZE_COM \ 41 if (e_com >= l_com) { \ 42 register nsize = l_com-s_com+400; \ 43 combuf = (char *) realloc(combuf, nsize); \ 44 e_com = combuf + (e_com-s_com) + 1; \ 45 l_com = combuf + nsize - 5; \ 46 s_com = combuf + 1; \ 47 } 48 #define CHECK_SIZE_LAB \ 49 if (e_lab >= l_lab) { \ 50 register nsize = l_lab-s_lab+400; \ 51 labbuf = (char *) realloc(labbuf, nsize); \ 52 e_lab = labbuf + (e_lab-s_lab) + 1; \ 53 l_lab = labbuf + nsize - 5; \ 54 s_lab = labbuf + 1; \ 55 } 56 #define CHECK_SIZE_TOKEN \ 57 if (e_token >= l_token) { \ 58 register nsize = l_token-s_token+400; \ 59 tokenbuf = (char *) realloc(tokenbuf, nsize); \ 60 e_token = tokenbuf + (e_token-s_token) + 1; \ 61 l_token = tokenbuf + nsize - 5; \ 62 s_token = tokenbuf + 1; \ 63 } 64 65 char *labbuf; /* buffer for label */ 66 char *s_lab; /* start ... */ 67 char *e_lab; /* .. and end of stored label */ 68 char *l_lab; /* limit of label buffer */ 69 70 char *codebuf; /* buffer for code section */ 71 char *s_code; /* start ... */ 72 char *e_code; /* .. and end of stored code */ 73 char *l_code; /* limit of code section */ 74 75 char *combuf; /* buffer for comments */ 76 char *s_com; /* start ... */ 77 char *e_com; /* ... and end of stored comments */ 78 char *l_com; /* limit of comment buffer */ 79 80 #define token s_token 81 char *tokenbuf; /* the last token scanned */ 82 char *s_token; 83 char *e_token; 84 char *l_token; 85 86 char *in_buffer; /* input buffer */ 87 char *in_buffer_limit; /* the end of the input buffer */ 88 char *buf_ptr; /* ptr to next character to be taken from 89 * in_buffer */ 90 char *buf_end; /* ptr to first after last char in in_buffer */ 91 92 char save_com[sc_size]; /* input text is saved here when looking for 93 * the brace after an if, while, etc */ 94 char *sc_end; /* pointer into save_com buffer */ 95 96 char *bp_save; /* saved value of buf_ptr when taking input 97 * from save_com */ 98 char *be_save; /* similarly saved value of buf_end */ 99 100 101 int pointer_as_binop; 102 int blanklines_after_declarations; 103 int blanklines_before_blockcomments; 104 int blanklines_after_procs; 105 int blanklines_around_conditional_compilation; 106 int swallow_optional_blanklines; 107 int n_real_blanklines; 108 int prefix_blankline_requested; 109 int postfix_blankline_requested; 110 int break_comma; /* when true and not in parens, break after a 111 * comma */ 112 int btype_2; /* when true, brace should be on same line as 113 * if, while, etc */ 114 float case_ind; /* indentation level to be used for a "case 115 * n:" */ 116 int code_lines; /* count of lines with code */ 117 int had_eof; /* set to true when input is exhausted */ 118 int line_no; /* the current line number. */ 119 int max_col; /* the maximum allowable line length */ 120 int verbose; /* when true, non-essential error messages are 121 * printed */ 122 int cuddle_else; /* true if else should cuddle up to '}' */ 123 int star_comment_cont; /* true iff comment continuation lines should 124 * have stars at the beginning of each line. */ 125 int comment_delimiter_on_blankline; 126 int troff; /* true iff were generating troff input */ 127 int procnames_start_line; /* if true, the names of procedures 128 * being defined get placed in column 129 * 1 (ie. a newline is placed between 130 * the type of the procedure and its 131 * name) */ 132 int proc_calls_space; /* If true, procedure calls look like: 133 * foo(bar) rather than foo (bar) */ 134 int format_col1_comments; /* If comments which start in column 1 135 * are to be magically reformatted 136 * (just like comments that begin in 137 * later columns) */ 138 int inhibit_formatting; /* true if INDENT OFF is in effect */ 139 int suppress_blanklines;/* set iff following blanklines should be 140 * suppressed */ 141 int continuation_indent;/* set to the indentation between the edge of 142 * code and continuation lines */ 143 int lineup_to_parens; /* if true, continued code within parens will 144 * be lined up to the open paren */ 145 int Bill_Shannon; /* true iff a blank should always be inserted 146 * after sizeof */ 147 int blanklines_after_declarations_at_proctop; /* This is vaguely 148 * similar to 149 * blanklines_after_decla 150 * rations except that 151 * it only applies to 152 * the first set of 153 * declarations in a 154 * procedure (just after 155 * the first '{') and it 156 * causes a blank line 157 * to be generated even 158 * if there are no 159 * declarations */ 160 int block_comment_max_col; 161 int extra_expression_indent; /* True if continuation lines from the 162 * expression part of "if(e)", 163 * "while(e)", "for(e;e;e)" should be 164 * indented an extra tab stop so that 165 * they don't conflict with the code 166 * that follows */ 167 168 /* -troff font state information */ 169 170 struct fstate { 171 char font[4]; 172 char size; 173 int allcaps:1; 174 }; 175 char *chfont(); 176 177 struct fstate 178 keywordf, /* keyword font */ 179 stringf, /* string font */ 180 boxcomf, /* Box comment font */ 181 blkcomf, /* Block comment font */ 182 scomf, /* Same line comment font */ 183 bodyf; /* major body font */ 184 185 186 #define STACKSIZE 150 187 188 struct parser_state { 189 int last_token; 190 struct fstate cfont; /* Current font */ 191 int p_stack[STACKSIZE]; /* this is the parsers stack */ 192 int il[STACKSIZE]; /* this stack stores indentation levels */ 193 float cstk[STACKSIZE];/* used to store case stmt indentation levels */ 194 int box_com; /* set to true when we are in a "boxed" 195 * comment. In that case, the first non-blank 196 * char should be lined up with the / in /* */ 197 int comment_delta, 198 n_comment_delta; 199 int cast_mask; /* indicates which close parens close off 200 * casts */ 201 int sizeof_mask; /* indicates which close parens close off 202 * sizeof''s */ 203 int block_init; /* true iff inside a block initialization */ 204 int block_init_level; /* The level of brace nesting in an 205 * initialization */ 206 int last_nl; /* this is true if the last thing scanned was 207 * a newline */ 208 int in_or_st; /* Will be true iff there has been a 209 * declarator (e.g. int or char) and no left 210 * paren since the last semicolon. When true, 211 * a '{' is starting a structure definition or 212 * an initialization list */ 213 int bl_line; /* set to 1 by dump_line if the line is blank */ 214 int col_1; /* set to true if the last token started in 215 * column 1 */ 216 int com_col; /* this is the column in which the current 217 * coment should start */ 218 int com_ind; /* the column in which comments to the right 219 * of code should start */ 220 int com_lines; /* the number of lines with comments, set by 221 * dump_line */ 222 int dec_nest; /* current nesting level for structure or init */ 223 int decl_com_ind; /* the column in which comments after 224 * declarations should be put */ 225 int decl_on_line; /* set to true if this line of code has part 226 * of a declaration on it */ 227 int i_l_follow; /* the level to which ind_level should be set 228 * after the current line is printed */ 229 int in_decl; /* set to true when we are in a declaration 230 * stmt. The processing of braces is then 231 * slightly different */ 232 int in_stmt; /* set to 1 while in a stmt */ 233 int ind_level; /* the current indentation level */ 234 int ind_size; /* the size of one indentation level */ 235 int ind_stmt; /* set to 1 if next line should have an extra 236 * indentation level because we are in the 237 * middle of a stmt */ 238 int last_u_d; /* set to true after scanning a token which 239 * forces a following operator to be unary */ 240 int leave_comma; /* if true, never break declarations after 241 * commas */ 242 int ljust_decl; /* true if declarations should be left 243 * justified */ 244 int out_coms; /* the number of comments processed, set by 245 * pr_comment */ 246 int out_lines; /* the number of lines written, set by 247 * dump_line */ 248 int p_l_follow; /* used to remember how to indent following 249 * statement */ 250 int paren_level; /* parenthesization level. used to indent 251 * within stmts */ 252 short paren_indents[20]; /* column positions of each paren */ 253 int pcase; /* set to 1 if the current line label is a 254 * case. It is printed differently from a 255 * regular label */ 256 int search_brace; /* set to true by parse when it is necessary 257 * to buffer up all info up to the start of a 258 * stmt after an if, while, etc */ 259 int unindent_displace; /* comments not to the right of code 260 * will be placed this many 261 * indentation levels to the left of 262 * code */ 263 int use_ff; /* set to one if the current line should be 264 * terminated with a form feed */ 265 int want_blank; /* set to true when the following token should 266 * be prefixed by a blank. (Said prefixing is 267 * ignored in some cases.) */ 268 int else_if; /* True iff else if pairs should be handled 269 * specially */ 270 int decl_indent; /* column to indent declared identifiers to */ 271 int its_a_keyword; 272 int sizeof_keyword; 273 int dumped_decl_indent; 274 float case_indent; /* The distance to indent case labels from the 275 * switch statement */ 276 int in_parameter_declaration; 277 int indent_parameters; 278 int tos; /* pointer to top of stack */ 279 char procname[100]; /* The name of the current procedure */ 280 int just_saw_decl; 281 } ps; 282 283 int ifdef_level; 284 int rparen_count; 285 struct parser_state state_stack[5]; 286 struct parser_state match_state[5]; 287