usr.bin/indent/indent_globs.h

   1 /*      $NetBSD: indent_globs.h,v 1.8 2003/08/07 11:14:08 agc Exp $     */
   2
   3 /*
   4  * Copyright (c) 1980, 1993
   5  *      The Regents of the University of California.  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. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  *      from: @(#)indent_globs.h        8.1 (Berkeley) 6/6/93
  32  */
  33
  34 /*
  35  * Copyright (c) 1985 Sun Microsystems, Inc.
  36  * Copyright (c) 1976 Board of Trustees of the University of Illinois.
  37  * All rights reserved.
  38  *
  39  * Redistribution and use in source and binary forms, with or without
  40  * modification, are permitted provided that the following conditions
  41  * are met:
  42  * 1. Redistributions of source code must retain the above copyright
  43  *    notice, this list of conditions and the following disclaimer.
  44  * 2. Redistributions in binary form must reproduce the above copyright
  45  *    notice, this list of conditions and the following disclaimer in the
  46  *    documentation and/or other materials provided with the distribution.
  47  * 3. All advertising materials mentioning features or use of this software
  48  *    must display the following acknowledgement:
  49  *      This product includes software developed by the University of
  50  *      California, Berkeley and its contributors.
  51  * 4. Neither the name of the University nor the names of its contributors
  52  *    may be used to endorse or promote products derived from this software
  53  *    without specific prior written permission.
  54  *
  55  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  56  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  57  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  58  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  59  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  60  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  61  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  62  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  63  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  64  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  65  * SUCH DAMAGE.
  66  *
  67  *      from: @(#)indent_globs.h        8.1 (Berkeley) 6/6/93
  68  */
  69
  70 #define BACKSLASH '\\'
  71 #define bufsize 200             /* size of internal buffers */
  72 #define sc_size 5000            /* size of save_com buffer */
  73 #define label_offset 2          /* number of levels a label is placed to left
  74                                  * of code */
  75
  76 #define tabsize 8               /* the size of a tab */
  77 #define tabmask 0177770         /* mask used when figuring length of lines
  78                                  * with tabs */
  79
  80
  81 #define false 0
  82 #define true  1
  83
  84
  85 #ifndef EXTERN
  86 #define EXTERN extern
  87 #endif
  88
  89
  90 EXTERN FILE   *input;                   /* the fid for the input file */
  91 EXTERN FILE   *output;                  /* the output file */
  92
  93 #define CHECK_SIZE_CODE \
  94         if (e_code >= l_code) { \
  95             int nsize = l_code-s_code+400; \
  96             codebuf = (char *) realloc(codebuf, nsize); \
  97             e_code = codebuf + (e_code-s_code) + 1; \
  98             l_code = codebuf + nsize - 5; \
  99             s_code = codebuf + 1; \
 100         }
 101 #define CHECK_SIZE_COM \
 102         if (e_com >= l_com) { \
 103             int nsize = l_com-s_com+400; \
 104             combuf = (char *) realloc(combuf, nsize); \
 105             e_com = combuf + (e_com-s_com) + 1; \
 106             l_com = combuf + nsize - 5; \
 107             s_com = combuf + 1; \
 108         }
 109 #define CHECK_SIZE_LAB \
 110         if (e_lab >= l_lab) { \
 111             int nsize = l_lab-s_lab+400; \
 112             labbuf = (char *) realloc(labbuf, nsize); \
 113             e_lab = labbuf + (e_lab-s_lab) + 1; \
 114             l_lab = labbuf + nsize - 5; \
 115             s_lab = labbuf + 1; \
 116         }
 117 #define CHECK_SIZE_TOKEN \
 118         if (e_token >= l_token) { \
 119             int nsize = l_token-s_token+400; \
 120             tokenbuf = (char *) realloc(tokenbuf, nsize); \
 121             e_token = tokenbuf + (e_token-s_token) + 1; \
 122             l_token = tokenbuf + nsize - 5; \
 123             s_token = tokenbuf + 1; \
 124         }
 125
 126 EXTERN char   *labbuf;                  /* buffer for label */
 127 EXTERN char   *s_lab;                   /* start ... */
 128 EXTERN char   *e_lab;                   /* .. and end of stored label */
 129 EXTERN char   *l_lab;                   /* limit of label buffer */
 130
 131 EXTERN char   *codebuf;                 /* buffer for code section */
 132 EXTERN char   *s_code;                  /* start ... */
 133 EXTERN char   *e_code;                  /* .. and end of stored code */
 134 EXTERN char   *l_code;                  /* limit of code section */
 135
 136 EXTERN char   *combuf;                  /* buffer for comments */
 137 EXTERN char   *s_com;                   /* start ... */
 138 EXTERN char   *e_com;                   /* ... and end of stored comments */
 139 EXTERN char   *l_com;                   /* limit of comment buffer */
 140
 141 #define token s_token
 142 EXTERN char   *tokenbuf;                /* the last token scanned */
 143 EXTERN char   *s_token;
 144 EXTERN char   *e_token;
 145 EXTERN char   *l_token;
 146
 147 EXTERN char   *in_buffer;               /* input buffer */
 148 EXTERN char   *in_buffer_limit;         /* the end of the input buffer */
 149 EXTERN char   *buf_ptr;                 /* ptr to next character to be taken from
 150                                          * in_buffer */
 151 EXTERN char   *buf_end;                 /* ptr to first after last char in in_buffer */
 152
 153 EXTERN char    save_com[sc_size];       /* input text is saved here when looking for
 154                                          * the brace after an if, while, etc */
 155 EXTERN char   *sc_end;                  /* pointer into save_com buffer */
 156
 157 EXTERN char   *bp_save;                 /* saved value of buf_ptr when taking input
 158                                          * from save_com */
 159 EXTERN char   *be_save;                 /* similarly saved value of buf_end */
 160
 161
 162 EXTERN int     pointer_as_binop;
 163 EXTERN int     blanklines_after_declarations;
 164 EXTERN int     blanklines_before_blockcomments;
 165 EXTERN int     blanklines_after_procs;
 166 EXTERN int     blanklines_around_conditional_compilation;
 167 EXTERN int     swallow_optional_blanklines;
 168 EXTERN int     n_real_blanklines;
 169 EXTERN int     prefix_blankline_requested;
 170 EXTERN int     postfix_blankline_requested;
 171 EXTERN int     break_comma;             /* when true and not in parens, break after a
 172                                          * comma */
 173 EXTERN int     btype_2;                 /* when true, brace should be on same line as
 174                                          * if, while, etc */
 175 EXTERN float   case_ind;                /* indentation level to be used for a "case
 176                                          * n:" */
 177 EXTERN int     code_lines;              /* count of lines with code */
 178 EXTERN int     had_eof;                 /* set to true when input is exhausted */
 179 EXTERN int     line_no;                 /* the current line number. */
 180 EXTERN int     max_col;                 /* the maximum allowable line length */
 181 EXTERN int     verbose;                 /* when true, non-essential error messages are
 182                                          * printed */
 183 EXTERN int     cuddle_else;             /* true if else should cuddle up to '}' */
 184 EXTERN int     star_comment_cont;       /* true iff comment continuation lines should
 185                                          * have stars at the beginning of each line. */
 186 EXTERN int     comment_delimiter_on_blankline;
 187 EXTERN int     troff;                   /* true iff were generating troff input */
 188 EXTERN int     procnames_start_line;    /* if true, the names of procedures being
 189                                          * defined get placed in column 1 (ie. a
 190                                          * newline is placed between the type of the
 191                                          * procedure and its name) */
 192 EXTERN int     proc_calls_space;        /* If true, procedure calls look like:
 193                                          * foo(bar) rather than foo (bar) */
 194 EXTERN int     format_col1_comments;    /* If comments which start in column 1 are to
 195                                          * be magically reformatted (just like
 196                                          * comments that begin in later columns) */
 197 EXTERN int     inhibit_formatting;      /* true if INDENT OFF is in effect */
 198 EXTERN int     suppress_blanklines;     /* set iff following blanklines should be
 199                                          * suppressed */
 200 EXTERN int     continuation_indent;     /* set to the indentation between the edge of
 201                                          * code and continuation lines */
 202 EXTERN int     lineup_to_parens;        /* if true, continued code within parens will
 203                                          * be lined up to the open paren */
 204 EXTERN int     Bill_Shannon;            /* true iff a blank should always be inserted
 205                                          * after sizeof */
 206 EXTERN int     blanklines_after_declarations_at_proctop;        /* This is vaguely
 207                                                                  * similar to
 208                                                                  * blanklines_after_decla
 209                                                                  * rations except that
 210                                                                  * it only applies to
 211                                                                  * the first set of
 212                                                                  * declarations in a
 213                                                                  * procedure (just after
 214                                                                  * the first '{') and it
 215                                                                  * causes a blank line
 216                                                                  * to be generated even
 217                                                                  * if there are no
 218                                                                  * declarations */
 219 EXTERN int     block_comment_max_col;
 220 EXTERN int     extra_expression_indent; /* True if continuation lines from the
 221                                          * expression part of "if(e)", "while(e)",
 222                                          * "for(e;e;e)" should be indented an extra
 223                                          * tab stop so that they don't conflict with
 224                                          * the code that follows */
 225
 226 /* -troff font state information */
 227
 228 struct fstate {
 229         char    font[4];
 230         char    size;
 231         int     allcaps:1;
 232 };
 233
 234 EXTERN struct fstate
 235         keywordf,               /* keyword font */
 236         stringf,                /* string font */
 237         boxcomf,                /* Box comment font */
 238         blkcomf,                /* Block comment font */
 239         scomf,                  /* Same line comment font */
 240         bodyf;                  /* major body font */
 241
 242 #define STACK_SIZE 150
 243
 244 EXTERN struct parser_state {
 245         int     last_token;
 246         struct fstate cfont;    /* Current font */
 247         int     p_stack[STACK_SIZE];    /* this is the parsers stack */
 248         int     il[STACK_SIZE]; /* this stack stores indentation levels */
 249         float   cstk[STACK_SIZE];/* used to store case stmt indentation levels */
 250         int     box_com;        /* set to true when we are in a "boxed"
 251                                  * comment. In that case, the first non-blank
 252                                  * char should be lined up with the comment / */
 253         int     comment_delta, n_comment_delta;
 254         int     cast_mask;      /* indicates which close parens close off
 255                                  * casts */
 256         int     sizeof_mask;    /* indicates which close parens close off
 257                                  * sizeof''s */
 258         int     block_init;     /* true iff inside a block initialization */
 259         int     block_init_level;       /* The level of brace nesting in an
 260                                          * initialization */
 261         int     last_nl;        /* this is true if the last thing scanned was
 262                                  * a newline */
 263         int     in_or_st;       /* Will be true iff there has been a
 264                                  * declarator (e.g. int or char) and no left
 265                                  * paren since the last semicolon. When true,
 266                                  * a '{' is starting a structure definition or
 267                                  * an initialization list */
 268         int     bl_line;        /* set to 1 by dump_line if the line is blank */
 269         int     col_1;          /* set to true if the last token started in
 270                                  * column 1 */
 271         int     com_col;        /* this is the column in which the current
 272                                  * coment should start */
 273         int     com_ind;        /* the column in which comments to the right
 274                                  * of code should start */
 275         int     com_lines;      /* the number of lines with comments, set by
 276                                  * dump_line */
 277         int     dec_nest;       /* current nesting level for structure or init */
 278         int     decl_com_ind;   /* the column in which comments after
 279                                  * declarations should be put */
 280         int     decl_on_line;   /* set to true if this line of code has part
 281                                  * of a declaration on it */
 282         int     i_l_follow;     /* the level to which ind_level should be set
 283                                  * after the current line is printed */
 284         int     in_decl;        /* set to true when we are in a declaration
 285                                  * stmt.  The processing of braces is then
 286                                  * slightly different */
 287         int     in_stmt;        /* set to 1 while in a stmt */
 288         int     ind_level;      /* the current indentation level */
 289         int     ind_size;       /* the size of one indentation level */
 290         int     ind_stmt;       /* set to 1 if next line should have an extra
 291                                  * indentation level because we are in the
 292                                  * middle of a stmt */
 293         int     last_u_d;       /* set to true after scanning a token which
 294                                  * forces a following operator to be unary */
 295         int     leave_comma;    /* if true, never break declarations after
 296                                  * commas */
 297         int     ljust_decl;     /* true if declarations should be left
 298                                  * justified */
 299         int     out_coms;       /* the number of comments processed, set by
 300                                  * pr_comment */
 301         int     out_lines;      /* the number of lines written, set by
 302                                  * dump_line */
 303         int     p_l_follow;     /* used to remember how to indent following
 304                                  * statement */
 305         int     paren_level;    /* parenthesization level. used to indent
 306                                  * within stmts */
 307         short   paren_indents[20];      /* column positions of each paren */
 308         int     pcase;          /* set to 1 if the current line label is a
 309                                  * case.  It is printed differently from a
 310                                  * regular label */
 311         int     search_brace;   /* set to true by parse when it is necessary
 312                                  * to buffer up all info up to the start of a
 313                                  * stmt after an if, while, etc */
 314         int     unindent_displace;      /* comments not to the right of code
 315                                          * will be placed this many
 316                                          * indentation levels to the left of
 317                                          * code */
 318         int     use_ff;         /* set to one if the current line should be
 319                                  * terminated with a form feed */
 320         int     want_blank;     /* set to true when the following token should
 321                                  * be prefixed by a blank. (Said prefixing is
 322                                  * ignored in some cases.) */
 323         int     else_if;        /* True iff else if pairs should be handled
 324                                  * specially */
 325         int     decl_indent;    /* column to indent declared identifiers to */
 326         int     its_a_keyword;
 327         int     sizeof_keyword;
 328         int     dumped_decl_indent;
 329         float   case_indent;    /* The distance to indent case labels from the
 330                                  * switch statement */
 331         int     in_parameter_declaration;
 332         int     indent_parameters;
 333         int     tos;            /* pointer to top of stack */
 334         char    procname[100];  /* The name of the current procedure */
 335         int     just_saw_decl;
 336 }       ps;
 337
 338 EXTERN int     ifdef_level;
 339 EXTERN int     rparen_count;
 340 EXTERN struct parser_state state_stack[5];
 341 EXTERN struct parser_state match_state[5];
 342
 343 int compute_code_target(void);
 344 int compute_label_target(void);
 345 int count_spaces(int, char *);
 346 void diag(int, const char *,...) __attribute__((__format__(__printf__, 2, 3)));
 347 void dump_line(void);
 348 int eqin(const char *, const char *);
 349 void fill_buffer(void);
 350 int pad_output(int, int);
 351 void scan_profile(FILE *);
 352 void set_defaults(void);
 353 void set_option(char *);
 354 void addkey(char *, int);
 355 void set_profile(void);
 356 char *chfont(struct fstate *, struct fstate *, char *);
 357 void parsefont(struct fstate *, const char *);
 358 void writefdef(struct fstate *, int);
 359 int lexi(void);
 360 void reduce(void);
 361 void parse(int);
 362 void pr_comment(void);
 363 void bakcopy(void);