xref: /dragonfly/usr.bin/indent/indent_globs.h (revision 6b5c5d0d)
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 1.2.2.2 2001/12/06 19:28:47 schweikh 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 	    e_code = codebuf + (e_code-s_code) + 1; \
63 	    l_code = codebuf + nsize - 5; \
64 	    s_code = codebuf + 1; \
65 	}
66 #define CHECK_SIZE_COM \
67 	if (e_com >= l_com) { \
68 	    int nsize = l_com-s_com+400; \
69 	    combuf = (char *) realloc(combuf, nsize); \
70 	    e_com = combuf + (e_com-s_com) + 1; \
71 	    l_com = combuf + nsize - 5; \
72 	    s_com = combuf + 1; \
73 	}
74 #define CHECK_SIZE_LAB \
75 	if (e_lab >= l_lab) { \
76 	    int nsize = l_lab-s_lab+400; \
77 	    labbuf = (char *) realloc(labbuf, nsize); \
78 	    e_lab = labbuf + (e_lab-s_lab) + 1; \
79 	    l_lab = labbuf + nsize - 5; \
80 	    s_lab = labbuf + 1; \
81 	}
82 #define CHECK_SIZE_TOKEN \
83 	if (e_token >= l_token) { \
84 	    int nsize = l_token-s_token+400; \
85 	    tokenbuf = (char *) realloc(tokenbuf, nsize); \
86 	    e_token = tokenbuf + (e_token-s_token) + 1; \
87 	    l_token = tokenbuf + nsize - 5; \
88 	    s_token = tokenbuf + 1; \
89 	}
90 
91 char       *labbuf;		/* buffer for label */
92 char       *s_lab;		/* start ... */
93 char       *e_lab;		/* .. and end of stored label */
94 char       *l_lab;		/* limit of label buffer */
95 
96 char       *codebuf;		/* buffer for code section */
97 char       *s_code;		/* start ... */
98 char       *e_code;		/* .. and end of stored code */
99 char       *l_code;		/* limit of code section */
100 
101 char       *combuf;		/* buffer for comments */
102 char       *s_com;		/* start ... */
103 char       *e_com;		/* ... and end of stored comments */
104 char       *l_com;		/* limit of comment buffer */
105 
106 #define token s_token
107 char       *tokenbuf;		/* the last token scanned */
108 char	   *s_token;
109 char       *e_token;
110 char	   *l_token;
111 
112 char       *in_buffer;		/* input buffer */
113 char	   *in_buffer_limit;	/* the end of the input buffer */
114 char       *buf_ptr;		/* ptr to next character to be taken from
115 				 * in_buffer */
116 char       *buf_end;		/* ptr to first after last char in in_buffer */
117 
118 char        save_com[sc_size];	/* input text is saved here when looking for
119 				 * the brace after an if, while, etc */
120 char       *sc_end;		/* pointer into save_com buffer */
121 
122 char       *bp_save;		/* saved value of buf_ptr when taking input
123 				 * from save_com */
124 char       *be_save;		/* similarly saved value of buf_end */
125 
126 
127 int         pointer_as_binop;
128 int         blanklines_after_declarations;
129 int         blanklines_before_blockcomments;
130 int         blanklines_after_procs;
131 int         blanklines_around_conditional_compilation;
132 int         swallow_optional_blanklines;
133 int         n_real_blanklines;
134 int         prefix_blankline_requested;
135 int         postfix_blankline_requested;
136 int         break_comma;	/* when true and not in parens, break after a
137 				 * comma */
138 int         btype_2;		/* when true, brace should be on same line as
139 				 * if, while, etc */
140 float       case_ind;		/* indentation level to be used for a "case
141 				 * n:" */
142 int         code_lines;		/* count of lines with code */
143 int         had_eof;		/* set to true when input is exhausted */
144 int         line_no;		/* the current line number. */
145 int         max_col;		/* the maximum allowable line length */
146 int         verbose;		/* when true, non-essential error messages are
147 				 * printed */
148 int         cuddle_else;	/* true if else should cuddle up to '}' */
149 int         star_comment_cont;	/* true iff comment continuation lines should
150 				 * have stars at the beginning of each line. */
151 int         comment_delimiter_on_blankline;
152 int         troff;		/* true iff were generating troff input */
153 int         procnames_start_line;	/* if true, the names of procedures
154 					 * being defined get placed in column
155 					 * 1 (ie. a newline is placed between
156 					 * the type of the procedure and its
157 					 * name) */
158 int         proc_calls_space;	/* If true, procedure calls look like:
159 				 * foo(bar) rather than foo (bar) */
160 int         format_block_comments;	/* true if comments beginning with
161 					 * `/ * \n' are to be reformatted */
162 int         format_col1_comments;	/* If comments which start in column 1
163 					 * are to be magically reformatted
164 					 * (just like comments that begin in
165 					 * later columns) */
166 int         inhibit_formatting;	/* true if INDENT OFF is in effect */
167 int         suppress_blanklines;/* set iff following blanklines should be
168 				 * suppressed */
169 int         continuation_indent;/* set to the indentation between the edge of
170 				 * code and continuation lines */
171 int         lineup_to_parens;	/* if true, continued code within parens will
172 				 * be lined up to the open paren */
173 int         Bill_Shannon;	/* true iff a blank should always be inserted
174 				 * after sizeof */
175 int         blanklines_after_declarations_at_proctop;	/* This is vaguely
176 							 * similar to
177 							 * blanklines_after_decla
178 							 * rations except that
179 							 * it only applies to
180 							 * the first set of
181 							 * declarations in a
182 							 * procedure (just after
183 							 * the first '{') and it
184 							 * causes a blank line
185 							 * to be generated even
186 							 * if there are no
187 							 * declarations */
188 int         block_comment_max_col;
189 int         extra_expression_indent;	/* True if continuation lines from the
190 					 * expression part of "if(e)",
191 					 * "while(e)", "for(e;e;e)" should be
192 					 * indented an extra tab stop so that
193 					 * they don't conflict with the code
194 					 * that follows */
195 
196 /* -troff font state information */
197 
198 struct fstate {
199     char        font[4];
200     char        size;
201     int         allcaps:1;
202 };
203 char       *chfont();
204 
205 struct fstate
206             keywordf,		/* keyword font */
207             stringf,		/* string font */
208             boxcomf,		/* Box comment font */
209             blkcomf,		/* Block comment font */
210             scomf,		/* Same line comment font */
211             bodyf;		/* major body font */
212 
213 
214 #define STACKSIZE 150
215 
216 struct parser_state {
217     int         last_token;
218     struct fstate cfont;	/* Current font */
219     int         p_stack[STACKSIZE];	/* this is the parsers stack */
220     int         il[STACKSIZE];	/* this stack stores indentation levels */
221     float       cstk[STACKSIZE];/* used to store case stmt indentation levels */
222     int         box_com;	/* set to true when we are in a "boxed"
223 				 * comment. In that case, the first non-blank
224 				 * char should be lined up with the / in / followed by * */
225     int         comment_delta,
226                 n_comment_delta;
227     int         cast_mask;	/* indicates which close parens close off
228 				 * casts */
229     int         sizeof_mask;	/* indicates which close parens close off
230 				 * sizeof''s */
231     int         block_init;	/* true iff inside a block initialization */
232     int         block_init_level;	/* The level of brace nesting in an
233 					 * initialization */
234     int         last_nl;	/* this is true if the last thing scanned was
235 				 * a newline */
236     int         in_or_st;	/* Will be true iff there has been a
237 				 * declarator (e.g. int or char) and no left
238 				 * paren since the last semicolon. When true,
239 				 * a '{' is starting a structure definition or
240 				 * an initialization list */
241     int         bl_line;	/* set to 1 by dump_line if the line is blank */
242     int         col_1;		/* set to true if the last token started in
243 				 * column 1 */
244     int         com_col;	/* this is the column in which the current
245 				 * coment should start */
246     int         com_ind;	/* the column in which comments to the right
247 				 * of code should start */
248     int         com_lines;	/* the number of lines with comments, set by
249 				 * dump_line */
250     int         dec_nest;	/* current nesting level for structure or init */
251     int         decl_com_ind;	/* the column in which comments after
252 				 * declarations should be put */
253     int         decl_on_line;	/* set to true if this line of code has part
254 				 * of a declaration on it */
255     int         i_l_follow;	/* the level to which ind_level should be set
256 				 * after the current line is printed */
257     int         in_decl;	/* set to true when we are in a declaration
258 				 * stmt.  The processing of braces is then
259 				 * slightly different */
260     int         in_stmt;	/* set to 1 while in a stmt */
261     int         ind_level;	/* the current indentation level */
262     int         ind_size;	/* the size of one indentation level */
263     int         ind_stmt;	/* set to 1 if next line should have an extra
264 				 * indentation level because we are in the
265 				 * middle of a stmt */
266     int         last_u_d;	/* set to true after scanning a token which
267 				 * forces a following operator to be unary */
268     int         leave_comma;	/* if true, never break declarations after
269 				 * commas */
270     int         ljust_decl;	/* true if declarations should be left
271 				 * justified */
272     int         out_coms;	/* the number of comments processed, set by
273 				 * pr_comment */
274     int         out_lines;	/* the number of lines written, set by
275 				 * dump_line */
276     int         p_l_follow;	/* used to remember how to indent following
277 				 * statement */
278     int         paren_level;	/* parenthesization level. used to indent
279 				 * within stmts */
280     short       paren_indents[20];	/* column positions of each paren */
281     int         pcase;		/* set to 1 if the current line label is a
282 				 * case.  It is printed differently from a
283 				 * regular label */
284     int         search_brace;	/* set to true by parse when it is necessary
285 				 * to buffer up all info up to the start of a
286 				 * stmt after an if, while, etc */
287     int         unindent_displace;	/* comments not to the right of code
288 					 * will be placed this many
289 					 * indentation levels to the left of
290 					 * code */
291     int         use_ff;		/* set to one if the current line should be
292 				 * terminated with a form feed */
293     int         want_blank;	/* set to true when the following token should
294 				 * be prefixed by a blank. (Said prefixing is
295 				 * ignored in some cases.) */
296     int         else_if;	/* True iff else if pairs should be handled
297 				 * specially */
298     int         decl_indent;	/* column to indent declared identifiers to */
299     int         its_a_keyword;
300     int         sizeof_keyword;
301     int         dumped_decl_indent;
302     float       case_indent;	/* The distance to indent case labels from the
303 				 * switch statement */
304     int         in_parameter_declaration;
305     int         indent_parameters;
306     int         tos;		/* pointer to top of stack */
307     char        procname[100];	/* The name of the current procedure */
308     int         just_saw_decl;
309 }           ps;
310 
311 int         ifdef_level;
312 int	    rparen_count;
313 struct parser_state state_stack[5];
314 struct parser_state match_state[5];
315