usr.bin/indent/indent_globs.h

   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: src/usr.bin/indent/indent_globs.h,v 1.11 2005/11/13 20:37:25 dwmalone Exp $
  37  * $DragonFly: src/usr.bin/indent/indent_globs.h,v 1.3 2005/04/10 20:55:38 drhodus Exp $
  38  */
  39
  40 #define BACKSLASH '\\'
  41 #define bufsize 200             /* size of internal buffers */
  42 #define sc_size 5000            /* size of save_com buffer */
  43 #define label_offset 2          /* number of levels a label is placed to left
  44                                  * of code */
  45
  46 #define tabsize 8               /* the size of a tab */
  47 #define tabmask 0177770         /* mask used when figuring length of lines
  48                                  * with tabs */
  49
  50
  51 #define false 0
  52 #define true  1
  53
  54
  55 FILE       *input;              /* the fid for the input file */
  56 FILE       *output;             /* the output file */
  57
  58 #define CHECK_SIZE_CODE \
  59         if (e_code >= l_code) { \
  60             int nsize = l_code-s_code+400; \
  61             codebuf = (char *) realloc(codebuf, nsize); \
  62             if (codebuf == NULL) \
  63                 err(1, NULL); \
  64             e_code = codebuf + (e_code-s_code) + 1; \
  65             l_code = codebuf + nsize - 5; \
  66             s_code = codebuf + 1; \
  67         }
  68 #define CHECK_SIZE_COM \
  69         if (e_com >= l_com) { \
  70             int nsize = l_com-s_com+400; \
  71             combuf = (char *) realloc(combuf, nsize); \
  72             if (combuf == NULL) \
  73                 err(1, NULL); \
  74             e_com = combuf + (e_com-s_com) + 1; \
  75             l_com = combuf + nsize - 5; \
  76             s_com = combuf + 1; \
  77         }
  78 #define CHECK_SIZE_LAB \
  79         if (e_lab >= l_lab) { \
  80             int nsize = l_lab-s_lab+400; \
  81             labbuf = (char *) realloc(labbuf, nsize); \
  82             if (labbuf == NULL) \
  83                 err(1, NULL); \
  84             e_lab = labbuf + (e_lab-s_lab) + 1; \
  85             l_lab = labbuf + nsize - 5; \
  86             s_lab = labbuf + 1; \
  87         }
  88 #define CHECK_SIZE_TOKEN \
  89         if (e_token >= l_token) { \
  90             int nsize = l_token-s_token+400; \
  91             tokenbuf = (char *) realloc(tokenbuf, nsize); \
  92             if (tokenbuf == NULL) \
  93                 err(1, NULL); \
  94             e_token = tokenbuf + (e_token-s_token) + 1; \
  95             l_token = tokenbuf + nsize - 5; \
  96             s_token = tokenbuf + 1; \
  97         }
  98
  99 char       *labbuf;             /* buffer for label */
 100 char       *s_lab;              /* start ... */
 101 char       *e_lab;              /* .. and end of stored label */
 102 char       *l_lab;              /* limit of label buffer */
 103
 104 char       *codebuf;            /* buffer for code section */
 105 char       *s_code;             /* start ... */
 106 char       *e_code;             /* .. and end of stored code */
 107 char       *l_code;             /* limit of code section */
 108
 109 char       *combuf;             /* buffer for comments */
 110 char       *s_com;              /* start ... */
 111 char       *e_com;              /* ... and end of stored comments */
 112 char       *l_com;              /* limit of comment buffer */
 113
 114 #define token s_token
 115 char       *tokenbuf;           /* the last token scanned */
 116 char       *s_token;
 117 char       *e_token;
 118 char       *l_token;
 119
 120 char       *in_buffer;          /* input buffer */
 121 char       *in_buffer_limit;    /* the end of the input buffer */
 122 char       *buf_ptr;            /* ptr to next character to be taken from
 123                                  * in_buffer */
 124 char       *buf_end;            /* ptr to first after last char in in_buffer */
 125
 126 char        save_com[sc_size];  /* input text is saved here when looking for
 127                                  * the brace after an if, while, etc */
 128 char       *sc_end;             /* pointer into save_com buffer */
 129
 130 char       *bp_save;            /* saved value of buf_ptr when taking input
 131                                  * from save_com */
 132 char       *be_save;            /* similarly saved value of buf_end */
 133
 134
 135 int         found_err;
 136 int         pointer_as_binop;
 137 int         blanklines_after_declarations;
 138 int         blanklines_before_blockcomments;
 139 int         blanklines_after_procs;
 140 int         blanklines_around_conditional_compilation;
 141 int         swallow_optional_blanklines;
 142 int         n_real_blanklines;
 143 int         prefix_blankline_requested;
 144 int         postfix_blankline_requested;
 145 int         break_comma;        /* when true and not in parens, break after a
 146                                  * comma */
 147 int         btype_2;            /* when true, brace should be on same line as
 148                                  * if, while, etc */
 149 float       case_ind;           /* indentation level to be used for a "case
 150                                  * n:" */
 151 int         code_lines;         /* count of lines with code */
 152 int         had_eof;            /* set to true when input is exhausted */
 153 int         line_no;            /* the current line number. */
 154 int         max_col;            /* the maximum allowable line length */
 155 int         verbose;            /* when true, non-essential error messages are
 156                                  * printed */
 157 int         cuddle_else;        /* true if else should cuddle up to '}' */
 158 int         star_comment_cont;  /* true iff comment continuation lines should
 159                                  * have stars at the beginning of each line. */
 160 int         comment_delimiter_on_blankline;
 161 int         troff;              /* true iff were generating troff input */
 162 int         procnames_start_line;       /* if true, the names of procedures
 163                                          * being defined get placed in column
 164                                          * 1 (ie. a newline is placed between
 165                                          * the type of the procedure and its
 166                                          * name) */
 167 int         proc_calls_space;   /* If true, procedure calls look like:
 168                                  * foo(bar) rather than foo (bar) */
 169 int         format_block_comments;      /* true if comments beginning with
 170                                          * `/ * \n' are to be reformatted */
 171 int         format_col1_comments;       /* If comments which start in column 1
 172                                          * are to be magically reformatted
 173                                          * (just like comments that begin in
 174                                          * later columns) */
 175 int         inhibit_formatting; /* true if INDENT OFF is in effect */
 176 int         suppress_blanklines;/* set iff following blanklines should be
 177                                  * suppressed */
 178 int         continuation_indent;/* set to the indentation between the edge of
 179                                  * code and continuation lines */
 180 int         lineup_to_parens;   /* if true, continued code within parens will
 181                                  * be lined up to the open paren */
 182 int         Bill_Shannon;       /* true iff a blank should always be inserted
 183                                  * after sizeof */
 184 int         blanklines_after_declarations_at_proctop;   /* This is vaguely
 185                                                          * similar to
 186                                                          * blanklines_after_decla
 187                                                          * rations except that
 188                                                          * it only applies to
 189                                                          * the first set of
 190                                                          * declarations in a
 191                                                          * procedure (just after
 192                                                          * the first '{') and it
 193                                                          * causes a blank line
 194                                                          * to be generated even
 195                                                          * if there are no
 196                                                          * declarations */
 197 int         block_comment_max_col;
 198 int         extra_expression_indent;    /* true if continuation lines from the
 199                                          * expression part of "if(e)",
 200                                          * "while(e)", "for(e;e;e)" should be
 201                                          * indented an extra tab stop so that
 202                                          * they don't conflict with the code
 203                                          * that follows */
 204 int         function_brace_split;       /* split function declaration and
 205                                          * brace onto separate lines */
 206 int         use_tabs;                   /* set true to use tabs for spacing,
 207                                          * false uses all spaces */
 208
 209 /* -troff font state information */
 210
 211 struct fstate {
 212     char        font[4];
 213     char        size;
 214     int         allcaps:1;
 215 };
 216 char       *chfont(struct fstate *, struct fstate *, char *);
 217
 218 struct fstate
 219             keywordf,           /* keyword font */
 220             stringf,            /* string font */
 221             boxcomf,            /* Box comment font */
 222             blkcomf,            /* Block comment font */
 223             scomf,              /* Same line comment font */
 224             bodyf;              /* major body font */
 225
 226
 227 #define STACKSIZE 150
 228
 229 struct parser_state {
 230     int         last_token;
 231     struct fstate cfont;        /* Current font */
 232     int         p_stack[STACKSIZE];     /* this is the parsers stack */
 233     int         il[STACKSIZE];  /* this stack stores indentation levels */
 234     float       cstk[STACKSIZE];/* used to store case stmt indentation levels */
 235     int         box_com;        /* set to true when we are in a "boxed"
 236                                  * comment. In that case, the first non-blank
 237                                  * char should be lined up with the / in / followed by * */
 238     int         comment_delta,
 239                 n_comment_delta;
 240     int         cast_mask;      /* indicates which close parens close off
 241                                  * casts */
 242     int         sizeof_mask;    /* indicates which close parens close off
 243                                  * sizeof''s */
 244     int         block_init;     /* true iff inside a block initialization */
 245     int         block_init_level;       /* The level of brace nesting in an
 246                                          * initialization */
 247     int         last_nl;        /* this is true if the last thing scanned was
 248                                  * a newline */
 249     int         in_or_st;       /* Will be true iff there has been a
 250                                  * declarator (e.g. int or char) and no left
 251                                  * paren since the last semicolon. When true,
 252                                  * a '{' is starting a structure definition or
 253                                  * an initialization list */
 254     int         bl_line;        /* set to 1 by dump_line if the line is blank */
 255     int         col_1;          /* set to true if the last token started in
 256                                  * column 1 */
 257     int         com_col;        /* this is the column in which the current
 258                                  * comment should start */
 259     int         com_ind;        /* the column in which comments to the right
 260                                  * of code should start */
 261     int         com_lines;      /* the number of lines with comments, set by
 262                                  * dump_line */
 263     int         dec_nest;       /* current nesting level for structure or init */
 264     int         decl_com_ind;   /* the column in which comments after
 265                                  * declarations should be put */
 266     int         decl_on_line;   /* set to true if this line of code has part
 267                                  * of a declaration on it */
 268     int         i_l_follow;     /* the level to which ind_level should be set
 269                                  * after the current line is printed */
 270     int         in_decl;        /* set to true when we are in a declaration
 271                                  * stmt.  The processing of braces is then
 272                                  * slightly different */
 273     int         in_stmt;        /* set to 1 while in a stmt */
 274     int         ind_level;      /* the current indentation level */
 275     int         ind_size;       /* the size of one indentation level */
 276     int         ind_stmt;       /* set to 1 if next line should have an extra
 277                                  * indentation level because we are in the
 278                                  * middle of a stmt */
 279     int         last_u_d;       /* set to true after scanning a token which
 280                                  * forces a following operator to be unary */
 281     int         leave_comma;    /* if true, never break declarations after
 282                                  * commas */
 283     int         ljust_decl;     /* true if declarations should be left
 284                                  * justified */
 285     int         out_coms;       /* the number of comments processed, set by
 286                                  * pr_comment */
 287     int         out_lines;      /* the number of lines written, set by
 288                                  * dump_line */
 289     int         p_l_follow;     /* used to remember how to indent following
 290                                  * statement */
 291     int         paren_level;    /* parenthesization level. used to indent
 292                                  * within statements */
 293     short       paren_indents[20];      /* column positions of each paren */
 294     int         pcase;          /* set to 1 if the current line label is a
 295                                  * case.  It is printed differently from a
 296                                  * regular label */
 297     int         search_brace;   /* set to true by parse when it is necessary
 298                                  * to buffer up all info up to the start of a
 299                                  * stmt after an if, while, etc */
 300     int         unindent_displace;      /* comments not to the right of code
 301                                          * will be placed this many
 302                                          * indentation levels to the left of
 303                                          * code */
 304     int         use_ff;         /* set to one if the current line should be
 305                                  * terminated with a form feed */
 306     int         want_blank;     /* set to true when the following token should
 307                                  * be prefixed by a blank. (Said prefixing is
 308                                  * ignored in some cases.) */
 309     int         else_if;        /* True iff else if pairs should be handled
 310                                  * specially */
 311     int         decl_indent;    /* column to indent declared identifiers to */
 312     int         local_decl_indent;      /* like decl_indent but for locals */
 313     int         its_a_keyword;
 314     int         sizeof_keyword;
 315     int         dumped_decl_indent;
 316     float       case_indent;    /* The distance to indent case labels from the
 317                                  * switch statement */
 318     int         in_parameter_declaration;
 319     int         indent_parameters;
 320     int         tos;            /* pointer to top of stack */
 321     char        procname[100];  /* The name of the current procedure */
 322     int         just_saw_decl;
 323 }           ps;
 324
 325 int         ifdef_level;
 326 int         rparen_count;
 327 struct parser_state state_stack[5];
 328 struct parser_state match_state[5];