1 /* 2 * Copyright (c) 1980 Regents of the University of California. 3 * Copyright (c) 1976 Board of Trustees of the University of Illinois. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms are permitted 7 * provided that this notice is preserved and that due credit is given 8 * to the University of California at Berkeley and the University of 9 * Illinois at Urbana. The name of either University may not be used 10 * to endorse or promote products derived from this software without 11 * specific prior written permission. This software is provided 12 * ``as is'' without express or implied warranty. 13 * 14 * @(#)indent_globs.h 5.5 (Berkeley) 03/22/88 15 */ 16 17 /* 18 FILE NAME: 19 indent_globs.h 20 21 PURPOSE: 22 This include file contains the declarations for all global variables 23 used in indent. 24 25 GLOBALS: 26 The names of all of the variables will not be repeated here. The 27 declarations start on the next page. 28 29 FUNCTIONS: 30 None 31 */ 32 33 #include <stdio.h> 34 35 #define BACKSLASH '\\' 36 #define bufsize 600 /* size of internal buffers */ 37 #define inp_bufs 600 /* size of input buffer */ 38 #define sc_size 5000 /* size of save_com buffer */ 39 #define label_offset 2 /* number of levels a label is placed to left of code 40 */ 41 42 #define tabsize 8 /* the size of a tab */ 43 #define tabmask 0177770 /* mask used when figuring length of lines with tabs */ 44 45 46 #define false 0 47 #define true 1 48 49 50 FILE *input; /* the fid for the input file */ 51 FILE *output; /* the output file */ 52 53 char labbuf[bufsize]; /* buffer for label */ 54 char *s_lab; /* start ... */ 55 char *e_lab; /* .. and end of stored label */ 56 57 char codebuf[bufsize]; /* buffer for code section */ 58 char *s_code; /* start ... */ 59 char *e_code; /* .. and end of stored code */ 60 61 char combuf[bufsize]; /* buffer for comments */ 62 char *s_com; /* start ... */ 63 char *e_com; /* ... and end of stored comments */ 64 65 char in_buffer[inp_bufs]; /* input buffer */ 66 char *buf_ptr; /* ptr to next character to be taken from in_buffer */ 67 char *buf_end; /* ptr to first after last char in in_buffer */ 68 69 char save_com[sc_size]; /* input text is saved here when looking for the brace 70 after an if, while, etc */ 71 char *sc_end; /* pointer into save_com buffer */ 72 73 char *bp_save; /* saved value of buf_ptr when taking input from 74 save_com */ 75 char *be_save; /* similarly saved value of buf_end */ 76 77 char token[bufsize]; /* the last token scanned */ 78 79 80 81 int blanklines_after_declarations; 82 int blanklines_before_blockcomments; 83 int blanklines_after_procs; 84 int swallow_optional_blanklines; 85 int n_real_blanklines; 86 int prefix_blankline_requested; 87 int postfix_blankline_requested; 88 int break_comma; /* when true and not in parens, break after a comma */ 89 int btype_2; /* when true, brace should be on same line as if, 90 while, etc */ 91 float case_ind; /* indentation level to be used for a "case n:" */ 92 int code_lines;/* count of lines with code */ 93 int had_eof; /* set to true when input is exhausted */ 94 int line_no; /* the current line number. */ 95 int max_col; /* the maximum allowable line length */ 96 int pointer_as_binop; /* when true, "->" is treated as a binary 97 operator (giving, e.g., "p -> f") */ 98 int verbose; /* when true, non-essential error messages are printed 99 */ 100 int cuddle_else; /* true if else should cuddle up to '}' */ 101 int star_comment_cont; /* true iff comment continuation lines should 102 have stars at the beginning of each line. 103 */ 104 int comment_delimiter_on_blankline; 105 int troff; /* true iff were generating troff input */ 106 int procnames_start_line; /* if true, the names of procedures being 107 defined get placed in column 1 (ie. a 108 newline is placed between the type of the 109 procedure and its name) */ 110 int proc_calls_space; /* If true, procedure calls look like: 111 foo(bar) rather than foo (bar) */ 112 int format_col1_comments; /* If comments which start in column 1 are to 113 be magically reformatted (just like comments that 114 begin in later columns) */ 115 int inhibit_formatting; /* true if INDENT OFF is in effect */ 116 int suppress_blanklines; /* set iff following blanklines should be 117 suppressed */ 118 int continuation_indent; /* set to the indentation between the edge of 119 code and continuation lines */ 120 int lineup_to_parens; /* if true, continued code within parens will 121 be lined up to the open paren */ 122 int block_comment_max_col; 123 124 125 struct parser_state { 126 int last_token; 127 int p_stack[50]; /* this is the parsers stack */ 128 int il[50]; /* this stack stores indentation levels */ 129 float cstk[50]; /* used to store case stmt indentation 130 * levels */ 131 int box_com; /* set to true when we are in a "boxed" 132 * comment. In that case, the first 133 * non-blank char should be lined up with 134 * the / in /* */ 135 int comment_delta, 136 n_comment_delta; 137 int cast_mask; /* indicates which close parens close off 138 * casts */ 139 int sizeof_mask; /* indicates which close parens close off 140 sizeof''s */ 141 int block_init; /* true iff inside a block initialization */ 142 int last_nl; /* this is true if the last thing scanned 143 * was a newline */ 144 int in_or_st; /* Will be true iff there has been a 145 * declarator (e.g. int or char) and no 146 * left paren since the last semicolon. 147 * When true, a '{' is starting a 148 * structure definition or an 149 * initialization list */ 150 int bl_line; /* set to 1 by dump_line if the line is 151 * blank */ 152 int col_1; /* set to true if the last token started 153 * in column 1 */ 154 int com_col; /* this is the column in which the current 155 * coment should start */ 156 int com_ind; /* the column in which comments to the 157 * right of code should start */ 158 int com_lines; /* the number of lines with comments, set 159 * by dump_line */ 160 int dec_nest; /* current nesting level for structure or 161 * init */ 162 int decl_com_ind; /* the column in which comments after 163 * declarations should be put */ 164 int decl_on_line; /* set to true if this line of code has 165 * part of a declaration on it */ 166 int i_l_follow; /* the level to which ind_level should be 167 * set after the current line is printed */ 168 int in_decl; /* set to true when we are in a 169 * declaration stmt. The processing of 170 * braces is then slightly different */ 171 int in_stmt; /* set to 1 while in a stmt */ 172 int ind_level; /* the current indentation level */ 173 int ind_size; /* the size of one indentation level */ 174 int ind_stmt; /* set to 1 if next line should have an 175 * extra indentation level because we are 176 * in the middle of a stmt */ 177 int last_u_d; /* set to true after scanning a token 178 * which forces a following operator to be 179 * unary */ 180 int leave_comma; /* if true, never break declarations after 181 * commas */ 182 int ljust_decl; /* true if declarations should be left 183 * justified */ 184 int out_coms; /* the number of comments processed, set 185 * by pr_comment */ 186 int out_lines; /* the number of lines written, set by 187 * dump_line */ 188 int p_l_follow; /* used to remember how to indent 189 * following statement */ 190 int paren_level; /* parenthesization level. used to indent 191 * within stmts */ 192 short paren_indents[20]; /* column positions of each paren */ 193 int pcase; /* set to 1 if the current line label is a 194 * case. It is printed differently from 195 * a regular label */ 196 int search_brace; /* set to true by parse when it is 197 * necessary to buffer up all info up to 198 * the start of a stmt after an if, while, 199 * etc */ 200 int unindent_displace; /* comments not to the right of 201 * code will be placed this many 202 * indentation levels to the left 203 * of code */ 204 int use_ff; /* set to one if the current line should 205 * be terminated with a form feed */ 206 int want_blank; /* set to true when the following token 207 * should be prefixed by a blank. (Said 208 * prefixing is ignored in some cases.) */ 209 int else_if; /* True iff else if pairs should be 210 * handled specially */ 211 int decl_indent; /* column to indent declared identifiers 212 * to */ 213 int its_a_keyword; 214 int sizeof_keyword; 215 int dumped_decl_indent; 216 float case_indent; /* The distance to indent case labels from 217 * the switch statement */ 218 int in_parameter_declaration; 219 int indent_parameters; 220 int tos; /* pointer to top of stack */ 221 char procname[100]; /* The name of the current procedure */ 222 int just_saw_decl; 223 } ps; 224 225 int ifdef_level; 226 struct parser_state state_stack[5]; 227 struct parser_state match_state[5]; 228