2 * SPDX-License-Identifier: BSD-4-Clause
4 * Copyright (c) 1985 Sun Microsystems, Inc.
5 * Copyright (c) 1980, 1993
6 * The Regents of the University of California. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the University of
20 * California, Berkeley and its contributors.
21 * 4. Neither the name of the University nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 * @(#)indent_globs.h 8.1 (Berkeley) 6/6/93
41 #define BACKSLASH '\\'
42 #define bufsize 200 /* size of internal buffers */
43 #define sc_size 5000 /* size of save_com buffer */
44 #define label_offset 2 /* number of levels a label is placed to left
52 FILE *input; /* the fid for the input file */
53 FILE *output; /* the output file */
55 #define CHECK_SIZE_CODE(desired_size) \
56 if (e_code + (desired_size) >= l_code) { \
57 int nsize = l_code-s_code + 400 + desired_size; \
58 int code_len = e_code-s_code; \
59 codebuf = (char *) realloc(codebuf, nsize); \
60 if (codebuf == NULL) \
62 e_code = codebuf + code_len + 1; \
63 l_code = codebuf + nsize - 5; \
64 s_code = codebuf + 1; \
66 #define CHECK_SIZE_COM(desired_size) \
67 if (e_com + (desired_size) >= l_com) { \
68 int nsize = l_com-s_com + 400 + desired_size; \
69 int com_len = e_com - s_com; \
71 if (last_bl != NULL) \
72 blank_pos = last_bl - combuf; \
75 combuf = (char *) realloc(combuf, nsize); \
78 e_com = combuf + com_len + 1; \
80 last_bl = combuf + blank_pos; \
81 l_com = combuf + nsize - 5; \
84 #define CHECK_SIZE_LAB(desired_size) \
85 if (e_lab + (desired_size) >= l_lab) { \
86 int nsize = l_lab-s_lab + 400 + desired_size; \
87 int label_len = e_lab - s_lab; \
88 labbuf = (char *) realloc(labbuf, nsize); \
91 e_lab = labbuf + label_len + 1; \
92 l_lab = labbuf + nsize - 5; \
95 #define CHECK_SIZE_TOKEN(desired_size) \
96 if (e_token + (desired_size) >= l_token) { \
97 int nsize = l_token-s_token + 400 + desired_size; \
98 int token_len = e_token - s_token; \
99 tokenbuf = (char *) realloc(tokenbuf, nsize); \
100 if (tokenbuf == NULL) \
102 e_token = tokenbuf + token_len + 1; \
103 l_token = tokenbuf + nsize - 5; \
104 s_token = tokenbuf + 1; \
107 char *labbuf; /* buffer for label */
108 char *s_lab; /* start ... */
109 char *e_lab; /* .. and end of stored label */
110 char *l_lab; /* limit of label buffer */
112 char *codebuf; /* buffer for code section */
113 char *s_code; /* start ... */
114 char *e_code; /* .. and end of stored code */
115 char *l_code; /* limit of code section */
117 char *combuf; /* buffer for comments */
118 char *s_com; /* start ... */
119 char *e_com; /* ... and end of stored comments */
120 char *l_com; /* limit of comment buffer */
122 #define token s_token
123 char *tokenbuf; /* the last token scanned */
128 char *in_buffer; /* input buffer */
129 char *in_buffer_limit; /* the end of the input buffer */
130 char *buf_ptr; /* ptr to next character to be taken from
132 char *buf_end; /* ptr to first after last char in in_buffer */
134 char sc_buf[sc_size]; /* input text is saved here when looking for
135 * the brace after an if, while, etc */
136 char *save_com; /* start of the comment stored in sc_buf */
137 char *sc_end; /* pointer into save_com buffer */
139 char *bp_save; /* saved value of buf_ptr when taking input
141 char *be_save; /* similarly saved value of buf_end */
145 int blanklines_around_conditional_compilation;
146 int blanklines_after_declarations_at_proctop; /* this is vaguely
147 * similar to blanklines_after_decla except
148 * that in only applies to the first set of
149 * declarations in a procedure (just after
150 * the first '{') and it causes a blank line
151 * to be generated even if there are no
153 int blanklines_after_declarations;
154 int blanklines_after_procs;
155 int blanklines_before_blockcomments;
156 int leave_comma; /* if true, never break declarations after
158 int btype_2; /* when true, brace should be on same line
159 * as if, while, etc */
160 int Bill_Shannon; /* true iff a blank should always be
161 * inserted after sizeof */
162 int comment_delimiter_on_blankline;
163 int decl_com_ind; /* the column in which comments after
164 * declarations should be put */
165 int cuddle_else; /* true if else should cuddle up to '}' */
166 int continuation_indent; /* set to the indentation between the
167 * edge of code and continuation lines */
168 float case_indent; /* The distance to indent case labels from the
169 * switch statement */
170 int com_ind; /* the column in which comments to the right
171 * of code should start */
172 int decl_indent; /* column to indent declared identifiers to */
173 int ljust_decl; /* true if declarations should be left
175 int unindent_displace; /* comments not to the right of code
176 * will be placed this many
177 * indentation levels to the left of
179 int extra_expression_indent; /* true if continuation lines from
180 * the expression part of "if(e)",
181 * "while(e)", "for(e;e;e)" should be
182 * indented an extra tab stop so that they
183 * don't conflict with the code that follows */
184 int else_if; /* True iff else if pairs should be handled
186 int function_brace_split; /* split function declaration and
187 * brace onto separate lines */
188 int format_col1_comments; /* If comments which start in column 1
189 * are to be magically reformatted (just
190 * like comments that begin in later columns) */
191 int format_block_comments; /* true if comments beginning with
192 * `/ * \n' are to be reformatted */
193 int indent_parameters;
194 int ind_size; /* the size of one indentation level */
195 int block_comment_max_col;
196 int local_decl_indent; /* like decl_indent but for locals */
197 int lineup_to_parens_always; /* if true, do not attempt to keep
198 * lined-up code within the margin */
199 int lineup_to_parens; /* if true, continued code within parens
200 * will be lined up to the open paren */
201 int proc_calls_space; /* If true, procedure calls look like:
202 * foo (bar) rather than foo(bar) */
203 int procnames_start_line; /* if true, the names of procedures
204 * being defined get placed in column 1 (ie.
205 * a newline is placed between the type of
206 * the procedure and its name) */
207 int space_after_cast; /* "b = (int) a" vs "b = (int)a" */
208 int star_comment_cont; /* true iff comment continuation lines
209 * should have stars at the beginning of
211 int swallow_optional_blanklines;
212 int auto_typedefs; /* set true to recognize identifiers
213 * ending in "_t" like typedefs */
214 int tabsize; /* the size of a tab */
215 int max_col; /* the maximum allowable line length */
216 int use_tabs; /* set true to use tabs for spacing, false
218 int verbose; /* when true, non-essential error messages
223 int n_real_blanklines;
224 int prefix_blankline_requested;
225 int postfix_blankline_requested;
226 int break_comma; /* when true and not in parens, break after a
228 float case_ind; /* indentation level to be used for a "case
230 int code_lines; /* count of lines with code */
231 int had_eof; /* set to true when input is exhausted */
232 int line_no; /* the current line number. */
233 int inhibit_formatting; /* true if INDENT OFF is in effect */
234 int suppress_blanklines;/* set iff following blanklines should be
237 struct parser_state {
239 int p_stack[256]; /* this is the parsers stack */
240 int il[64]; /* this stack stores indentation levels */
241 float cstk[32]; /* used to store case stmt indentation levels */
242 int box_com; /* set to true when we are in a "boxed"
243 * comment. In that case, the first non-blank
244 * char should be lined up with the / in / followed by * */
245 int comment_delta; /* used to set up indentation for all lines
246 * of a boxed comment after the first one */
247 int n_comment_delta;/* remembers how many columns there were
248 * before the start of a box comment so that
249 * forthcoming lines of the comment are
250 * indented properly */
251 int cast_mask; /* indicates which close parens potentially
253 int not_cast_mask; /* indicates which close parens definitely
254 * close off something else than casts */
255 int block_init; /* true iff inside a block initialization */
256 int block_init_level; /* The level of brace nesting in an
258 int last_nl; /* this is true if the last thing scanned was
260 int in_or_st; /* Will be true iff there has been a
261 * declarator (e.g. int or char) and no left
262 * paren since the last semicolon. When true,
263 * a '{' is starting a structure definition or
264 * an initialization list */
265 int bl_line; /* set to 1 by dump_line if the line is blank */
266 int col_1; /* set to true if the last token started in
268 int com_col; /* this is the column in which the current
269 * comment should start */
270 int com_lines; /* the number of lines with comments, set by
272 int dec_nest; /* current nesting level for structure or init */
273 int decl_on_line; /* set to true if this line of code has part
274 * of a declaration on it */
275 int i_l_follow; /* the level to which ind_level should be set
276 * after the current line is printed */
277 int in_decl; /* set to true when we are in a declaration
278 * stmt. The processing of braces is then
279 * slightly different */
280 int in_stmt; /* set to 1 while in a stmt */
281 int ind_level; /* the current indentation level */
282 int ind_stmt; /* set to 1 if next line should have an extra
283 * indentation level because we are in the
284 * middle of a stmt */
285 int last_u_d; /* set to true after scanning a token which
286 * forces a following operator to be unary */
287 int out_coms; /* the number of comments processed, set by
289 int out_lines; /* the number of lines written, set by
291 int p_l_follow; /* used to remember how to indent following
293 int paren_level; /* parenthesization level. used to indent
294 * within statements */
295 short paren_indents[20]; /* column positions of each paren */
296 int pcase; /* set to 1 if the current line label is a
297 * case. It is printed differently from a
299 int search_brace; /* set to true by parse when it is necessary
300 * to buffer up all info up to the start of a
301 * stmt after an if, while, etc */
302 int use_ff; /* set to one if the current line should be
303 * terminated with a form feed */
304 int want_blank; /* set to true when the following token should
305 * be prefixed by a blank. (Said prefixing is
306 * ignored in some cases.) */
307 int keyword; /* the type of a keyword or 0 */
308 int dumped_decl_indent;
309 int in_parameter_declaration;
310 int tos; /* pointer to top of stack */
311 char procname[100]; /* The name of the current procedure */
316 struct parser_state state_stack[5];
317 struct parser_state match_state[5];