indent(1): fix building with -fno-common
[dragonfly.git] / usr.bin / indent / indent_globs.h
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1/*-
2 * SPDX-License-Identifier: BSD-4-Clause
3 *
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4 * Copyright (c) 1985 Sun Microsystems, Inc.
5 * Copyright (c) 1980, 1993
6 * The Regents of the University of California. All rights reserved.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
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.
24 *
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
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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
35 * SUCH DAMAGE.
36 *
37 * @(#)indent_globs.h 8.1 (Berkeley) 6/6/93
7d3cdea1 38 * $FreeBSD: head/usr.bin/indent/indent_globs.h 337651 2018-08-11 19:20:06Z pstef $
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39 */
40
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
45 * of code */
46
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47
48#define false 0
49#define true 1
50
51
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52extern FILE *input; /* the fid for the input file */
53extern FILE *output; /* the output file */
984263bc 54
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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; \
984263bc 59 codebuf = (char *) realloc(codebuf, nsize); \
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60 if (codebuf == NULL) \
61 err(1, NULL); \
7d3cdea1 62 e_code = codebuf + code_len + 1; \
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63 l_code = codebuf + nsize - 5; \
64 s_code = codebuf + 1; \
65 }
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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; \
70 int blank_pos; \
71 if (last_bl != NULL) \
72 blank_pos = last_bl - combuf; \
73 else \
74 blank_pos = -1; \
984263bc 75 combuf = (char *) realloc(combuf, nsize); \
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76 if (combuf == NULL) \
77 err(1, NULL); \
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78 e_com = combuf + com_len + 1; \
79 if (blank_pos > 0) \
80 last_bl = combuf + blank_pos; \
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81 l_com = combuf + nsize - 5; \
82 s_com = combuf + 1; \
83 }
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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; \
984263bc 88 labbuf = (char *) realloc(labbuf, nsize); \
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89 if (labbuf == NULL) \
90 err(1, NULL); \
7d3cdea1 91 e_lab = labbuf + label_len + 1; \
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92 l_lab = labbuf + nsize - 5; \
93 s_lab = labbuf + 1; \
94 }
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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; \
984263bc 99 tokenbuf = (char *) realloc(tokenbuf, nsize); \
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100 if (tokenbuf == NULL) \
101 err(1, NULL); \
7d3cdea1 102 e_token = tokenbuf + token_len + 1; \
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103 l_token = tokenbuf + nsize - 5; \
104 s_token = tokenbuf + 1; \
105 }
106
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107extern char *labbuf; /* buffer for label */
108extern char *s_lab; /* start ... */
109extern char *e_lab; /* .. and end of stored label */
110extern char *l_lab; /* limit of label buffer */
984263bc 111
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112extern char *codebuf; /* buffer for code section */
113extern char *s_code; /* start ... */
114extern char *e_code; /* .. and end of stored code */
115extern char *l_code; /* limit of code section */
984263bc 116
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117extern char *combuf; /* buffer for comments */
118extern char *s_com; /* start ... */
119extern char *e_com; /* ... and end of stored comments */
120extern char *l_com; /* limit of comment buffer */
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121
122#define token s_token
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123extern char *tokenbuf; /* the last token scanned */
124extern char *s_token;
125extern char *e_token;
126extern char *l_token;
984263bc 127
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128extern char *in_buffer; /* input buffer */
129extern char *in_buffer_limit; /* the end of the input buffer */
130extern char *buf_ptr; /* ptr to next character to be taken
131 * from in_buffer */
132extern char *buf_end; /* ptr to first after last char in
133 * in_buffer */
984263bc 134
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135extern char sc_buf[sc_size]; /* input text is saved here when looking
136 * for the brace after an if, while, etc */
137extern char *save_com; /* start of the comment stored in
138 * sc_buf */
139extern char *sc_end; /* pointer into save_com buffer */
984263bc 140
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141extern char *bp_save; /* saved value of buf_ptr when taking
142 * input from save_com */
143extern char *be_save; /* similarly saved value of buf_end */
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144
145
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146struct options {
147 int blanklines_around_conditional_compilation;
148 int blanklines_after_declarations_at_proctop; /* this is vaguely
149 * similar to blanklines_after_decla except
150 * that in only applies to the first set of
151 * declarations in a procedure (just after
152 * the first '{') and it causes a blank line
153 * to be generated even if there are no
154 * declarations */
155 int blanklines_after_declarations;
156 int blanklines_after_procs;
157 int blanklines_before_blockcomments;
158 int leave_comma; /* if true, never break declarations after
159 * commas */
160 int btype_2; /* when true, brace should be on same line
161 * as if, while, etc */
162 int Bill_Shannon; /* true iff a blank should always be
163 * inserted after sizeof */
164 int comment_delimiter_on_blankline;
165 int decl_com_ind; /* the column in which comments after
166 * declarations should be put */
167 int cuddle_else; /* true if else should cuddle up to '}' */
168 int continuation_indent; /* set to the indentation between the
169 * edge of code and continuation lines */
170 float case_indent; /* The distance to indent case labels from the
171 * switch statement */
172 int com_ind; /* the column in which comments to the right
173 * of code should start */
174 int decl_indent; /* column to indent declared identifiers to */
175 int ljust_decl; /* true if declarations should be left
176 * justified */
177 int unindent_displace; /* comments not to the right of code
178 * will be placed this many
179 * indentation levels to the left of
180 * code */
181 int extra_expression_indent; /* true if continuation lines from
182 * the expression part of "if(e)",
183 * "while(e)", "for(e;e;e)" should be
184 * indented an extra tab stop so that they
185 * don't conflict with the code that follows */
186 int else_if; /* True iff else if pairs should be handled
187 * specially */
188 int function_brace_split; /* split function declaration and
189 * brace onto separate lines */
190 int format_col1_comments; /* If comments which start in column 1
191 * are to be magically reformatted (just
192 * like comments that begin in later columns) */
193 int format_block_comments; /* true if comments beginning with
194 * `/ * \n' are to be reformatted */
195 int indent_parameters;
196 int ind_size; /* the size of one indentation level */
197 int block_comment_max_col;
198 int local_decl_indent; /* like decl_indent but for locals */
199 int lineup_to_parens_always; /* if true, do not attempt to keep
200 * lined-up code within the margin */
201 int lineup_to_parens; /* if true, continued code within parens
202 * will be lined up to the open paren */
203 int proc_calls_space; /* If true, procedure calls look like:
204 * foo (bar) rather than foo(bar) */
205 int procnames_start_line; /* if true, the names of procedures
206 * being defined get placed in column 1 (ie.
207 * a newline is placed between the type of
208 * the procedure and its name) */
209 int space_after_cast; /* "b = (int) a" vs "b = (int)a" */
210 int star_comment_cont; /* true iff comment continuation lines
211 * should have stars at the beginning of
212 * each line. */
213 int swallow_optional_blanklines;
214 int auto_typedefs; /* set true to recognize identifiers
215 * ending in "_t" like typedefs */
216 int tabsize; /* the size of a tab */
217 int max_col; /* the maximum allowable line length */
218 int use_tabs; /* set true to use tabs for spacing, false
219 * uses all spaces */
220 int verbose; /* when true, non-essential error messages
221 * are printed */
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222};
223extern struct options opt;
7d3cdea1 224
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225extern int found_err;
226extern int n_real_blanklines;
227extern int prefix_blankline_requested;
228extern int postfix_blankline_requested;
229extern int break_comma; /* when true and not in parens, break after a
984263bc 230 * comma */
978e8d96 231extern float case_ind; /* indentation level to be used for a "case
984263bc 232 * n:" */
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233extern int code_lines; /* count of lines with code */
234extern int had_eof; /* set to true when input is exhausted */
235extern int line_no; /* the current line number. */
236extern int inhibit_formatting; /* true if INDENT OFF is in effect */
237extern int suppress_blanklines;/* set iff following blanklines should be
984263bc 238 * suppressed */
984263bc 239
7d3cdea1 240#define STACKSIZE 256
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241
242struct parser_state {
243 int last_token;
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244 int p_stack[STACKSIZE]; /* this is the parsers stack */
245 int il[STACKSIZE]; /* this stack stores indentation levels */
246 float cstk[STACKSIZE];/* used to store case stmt indentation levels */
247 int box_com; /* set to true when we are in a "boxed"
248 * comment. In that case, the first non-blank
249 * char should be lined up with the / in / followed by * */
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250 int comment_delta; /* used to set up indentation for all lines
251 * of a boxed comment after the first one */
252 int n_comment_delta;/* remembers how many columns there were
253 * before the start of a box comment so that
254 * forthcoming lines of the comment are
255 * indented properly */
256 int cast_mask; /* indicates which close parens potentially
257 * close off casts */
258 int not_cast_mask; /* indicates which close parens definitely
259 * close off something else than casts */
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260 int block_init; /* true iff inside a block initialization */
261 int block_init_level; /* The level of brace nesting in an
262 * initialization */
263 int last_nl; /* this is true if the last thing scanned was
264 * a newline */
265 int in_or_st; /* Will be true iff there has been a
266 * declarator (e.g. int or char) and no left
267 * paren since the last semicolon. When true,
268 * a '{' is starting a structure definition or
269 * an initialization list */
270 int bl_line; /* set to 1 by dump_line if the line is blank */
271 int col_1; /* set to true if the last token started in
272 * column 1 */
273 int com_col; /* this is the column in which the current
ed1a2607 274 * comment should start */
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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 */
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278 int decl_on_line; /* set to true if this line of code has part
279 * of a declaration on it */
280 int i_l_follow; /* the level to which ind_level should be set
281 * after the current line is printed */
282 int in_decl; /* set to true when we are in a declaration
283 * stmt. The processing of braces is then
284 * slightly different */
285 int in_stmt; /* set to 1 while in a stmt */
286 int ind_level; /* the current indentation level */
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287 int ind_stmt; /* set to 1 if next line should have an extra
288 * indentation level because we are in the
289 * middle of a stmt */
290 int last_u_d; /* set to true after scanning a token which
291 * forces a following operator to be unary */
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292 int out_coms; /* the number of comments processed, set by
293 * pr_comment */
294 int out_lines; /* the number of lines written, set by
295 * dump_line */
296 int p_l_follow; /* used to remember how to indent following
297 * statement */
298 int paren_level; /* parenthesization level. used to indent
ed1a2607 299 * within statements */
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300 short paren_indents[20]; /* column positions of each paren */
301 int pcase; /* set to 1 if the current line label is a
302 * case. It is printed differently from a
303 * regular label */
304 int search_brace; /* set to true by parse when it is necessary
305 * to buffer up all info up to the start of a
306 * stmt after an if, while, etc */
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307 int use_ff; /* set to one if the current line should be
308 * terminated with a form feed */
309 int want_blank; /* set to true when the following token should
310 * be prefixed by a blank. (Said prefixing is
311 * ignored in some cases.) */
7d3cdea1 312 int keyword; /* the type of a keyword or 0 */
984263bc 313 int dumped_decl_indent;
984263bc 314 int in_parameter_declaration;
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315 int tos; /* pointer to top of stack */
316 char procname[100]; /* The name of the current procedure */
317 int just_saw_decl;
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318};
319extern struct parser_state ps;
984263bc 320
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321extern int ifdef_level;
322extern struct parser_state state_stack[5];
323extern struct parser_state match_state[5];