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b2e768eb | 1 | /* |
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2 | * Copyright (c) 1985 Sun Microsystems, Inc. |
3 | * Copyright (c) 1980 The Regents of the University of California. | |
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4 | * Copyright (c) 1976 Board of Trustees of the University of Illinois. |
5 | * All rights reserved. | |
b2e768eb | 6 | * |
b0627149 | 7 | * Redistribution and use in source and binary forms are permitted |
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8 | * provided that the above copyright notice and this paragraph are |
9 | * duplicated in all such forms and that any documentation, | |
10 | * advertising materials, and other materials related to such | |
11 | * distribution and use acknowledge that the software was developed | |
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12 | * by the University of California, Berkeley, the University of Illinois, |
13 | * Urbana, and Sun Microsystems, Inc. The name of either University | |
14 | * or Sun Microsystems may not be used to endorse or promote products | |
15 | * derived from this software without specific prior written permission. | |
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16 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
17 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
18 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
b0627149 | 19 | * |
0c8ee79d | 20 | * @(#)indent_globs.h 5.8 (Berkeley) %G% |
b2e768eb | 21 | */ |
84262df4 | 22 | |
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23 | #include <stdio.h> |
24 | ||
25 | #define BACKSLASH '\\' | |
30f48914 | 26 | #define bufsize 200 /* size of internal buffers */ |
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27 | #define sc_size 5000 /* size of save_com buffer */ |
28 | #define label_offset 2 /* number of levels a label is placed to left | |
29 | * of code */ | |
84262df4 | 30 | |
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31 | #define tabsize 8 /* the size of a tab */ |
32 | #define tabmask 0177770 /* mask used when figuring length of lines | |
33 | * with tabs */ | |
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34 | |
35 | ||
36 | #define false 0 | |
37 | #define true 1 | |
38 | ||
39 | ||
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40 | FILE *input; /* the fid for the input file */ |
41 | FILE *output; /* the output file */ | |
42 | ||
43 | #define check_size(name) \ | |
44 | if (e_/**/name >= l_/**/name) { \ | |
45 | register nsize = l_/**/name-s_/**/name+400; \ | |
46 | name/**/buf = (char *) realloc(name/**/buf, nsize); \ | |
47 | e_/**/name = name/**/buf + (e_/**/name-s_/**/name) + 1; \ | |
48 | l_/**/name = name/**/buf + nsize - 5; \ | |
49 | s_/**/name = name/**/buf + 1; \ | |
50 | } | |
51 | ||
52 | char *labbuf; /* buffer for label */ | |
53 | char *s_lab; /* start ... */ | |
54 | char *e_lab; /* .. and end of stored label */ | |
55 | char *l_lab; /* limit of label buffer */ | |
56 | ||
57 | char *codebuf; /* buffer for code section */ | |
58 | char *s_code; /* start ... */ | |
59 | char *e_code; /* .. and end of stored code */ | |
60 | char *l_code; /* limit of code section */ | |
61 | ||
62 | char *combuf; /* buffer for comments */ | |
63 | char *s_com; /* start ... */ | |
64 | char *e_com; /* ... and end of stored comments */ | |
65 | char *l_com; /* limit of comment buffer */ | |
66 | ||
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67 | #define token s_token |
68 | char *tokenbuf; /* the last token scanned */ | |
69 | char *s_token; | |
70 | char *e_token; | |
71 | char *l_token; | |
72 | ||
73 | char *in_buffer; /* input buffer */ | |
74 | char *in_buffer_limit; /* the end of the input buffer */ | |
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75 | char *buf_ptr; /* ptr to next character to be taken from |
76 | * in_buffer */ | |
77 | char *buf_end; /* ptr to first after last char in in_buffer */ | |
1009bf5e | 78 | |
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79 | char save_com[sc_size]; /* input text is saved here when looking for |
80 | * the brace after an if, while, etc */ | |
81 | char *sc_end; /* pointer into save_com buffer */ | |
82 | ||
83 | char *bp_save; /* saved value of buf_ptr when taking input | |
84 | * from save_com */ | |
85 | char *be_save; /* similarly saved value of buf_end */ | |
86 | ||
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87 | |
88 | int pointer_as_binop; | |
89 | int blanklines_after_declarations; | |
90 | int blanklines_before_blockcomments; | |
91 | int blanklines_after_procs; | |
92 | int blanklines_around_conditional_compilation; | |
93 | int swallow_optional_blanklines; | |
94 | int n_real_blanklines; | |
95 | int prefix_blankline_requested; | |
96 | int postfix_blankline_requested; | |
97 | int break_comma; /* when true and not in parens, break after a | |
98 | * comma */ | |
99 | int btype_2; /* when true, brace should be on same line as | |
100 | * if, while, etc */ | |
101 | float case_ind; /* indentation level to be used for a "case | |
102 | * n:" */ | |
103 | int code_lines; /* count of lines with code */ | |
104 | int had_eof; /* set to true when input is exhausted */ | |
105 | int line_no; /* the current line number. */ | |
106 | int max_col; /* the maximum allowable line length */ | |
107 | int verbose; /* when true, non-essential error messages are | |
108 | * printed */ | |
109 | int cuddle_else; /* true if else should cuddle up to '}' */ | |
110 | int star_comment_cont; /* true iff comment continuation lines should | |
111 | * have stars at the beginning of each line. */ | |
112 | int comment_delimiter_on_blankline; | |
113 | int troff; /* true iff were generating troff input */ | |
114 | int procnames_start_line; /* if true, the names of procedures | |
115 | * being defined get placed in column | |
116 | * 1 (ie. a newline is placed between | |
117 | * the type of the procedure and its | |
118 | * name) */ | |
119 | int proc_calls_space; /* If true, procedure calls look like: | |
120 | * foo(bar) rather than foo (bar) */ | |
121 | int format_col1_comments; /* If comments which start in column 1 | |
122 | * are to be magically reformatted | |
123 | * (just like comments that begin in | |
124 | * later columns) */ | |
125 | int inhibit_formatting; /* true if INDENT OFF is in effect */ | |
126 | int suppress_blanklines;/* set iff following blanklines should be | |
127 | * suppressed */ | |
128 | int continuation_indent;/* set to the indentation between the edge of | |
129 | * code and continuation lines */ | |
130 | int lineup_to_parens; /* if true, continued code within parens will | |
131 | * be lined up to the open paren */ | |
132 | int Bill_Shannon; /* true iff a blank should always be inserted | |
133 | * after sizeof */ | |
134 | int blanklines_after_declarations_at_proctop; /* This is vaguely | |
135 | * similar to | |
136 | * blanklines_after_decla | |
137 | * rations except that | |
138 | * it only applies to | |
139 | * the first set of | |
140 | * declarations in a | |
141 | * procedure (just after | |
142 | * the first '{') and it | |
143 | * causes a blank line | |
144 | * to be generated even | |
145 | * if there are no | |
146 | * declarations */ | |
147 | int block_comment_max_col; | |
148 | int extra_expression_indent; /* True if continuation lines from the | |
149 | * expression part of "if(e)", | |
150 | * "while(e)", "for(e;e;e)" should be | |
151 | * indented an extra tab stop so that | |
152 | * they don't conflict with the code | |
153 | * that follows */ | |
154 | ||
155 | /* -troff font state information */ | |
156 | ||
157 | struct fstate { | |
158 | char font[4]; | |
159 | char size; | |
160 | int allcaps:1; | |
161 | }; | |
162 | char *chfont(); | |
163 | ||
164 | struct fstate | |
165 | keywordf, /* keyword font */ | |
166 | stringf, /* string font */ | |
167 | boxcomf, /* Box comment font */ | |
168 | blkcomf, /* Block comment font */ | |
169 | scomf, /* Same line comment font */ | |
170 | bodyf; /* major body font */ | |
171 | ||
172 | ||
173 | #define STACKSIZE 150 | |
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174 | |
175 | struct parser_state { | |
176 | int last_token; | |
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177 | struct fstate cfont; /* Current font */ |
178 | int p_stack[STACKSIZE]; /* this is the parsers stack */ | |
179 | int il[STACKSIZE]; /* this stack stores indentation levels */ | |
180 | float cstk[STACKSIZE];/* used to store case stmt indentation levels */ | |
1009bf5e | 181 | int box_com; /* set to true when we are in a "boxed" |
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182 | * comment. In that case, the first non-blank |
183 | * char should be lined up with the / in /* */ | |
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184 | int comment_delta, |
185 | n_comment_delta; | |
186 | int cast_mask; /* indicates which close parens close off | |
187 | * casts */ | |
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188 | int sizeof_mask; /* indicates which close parens close off |
189 | * sizeof''s */ | |
1009bf5e | 190 | int block_init; /* true iff inside a block initialization */ |
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191 | int block_init_level; /* The level of brace nesting in an |
192 | * initialization */ | |
193 | int last_nl; /* this is true if the last thing scanned was | |
194 | * a newline */ | |
1009bf5e | 195 | int in_or_st; /* Will be true iff there has been a |
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196 | * declarator (e.g. int or char) and no left |
197 | * paren since the last semicolon. When true, | |
198 | * a '{' is starting a structure definition or | |
199 | * an initialization list */ | |
200 | int bl_line; /* set to 1 by dump_line if the line is blank */ | |
201 | int col_1; /* set to true if the last token started in | |
202 | * column 1 */ | |
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203 | int com_col; /* this is the column in which the current |
204 | * coment should start */ | |
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205 | int com_ind; /* the column in which comments to the right |
206 | * of code should start */ | |
207 | int com_lines; /* the number of lines with comments, set by | |
208 | * dump_line */ | |
209 | int dec_nest; /* current nesting level for structure or init */ | |
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210 | int decl_com_ind; /* the column in which comments after |
211 | * declarations should be put */ | |
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212 | int decl_on_line; /* set to true if this line of code has part |
213 | * of a declaration on it */ | |
214 | int i_l_follow; /* the level to which ind_level should be set | |
215 | * after the current line is printed */ | |
216 | int in_decl; /* set to true when we are in a declaration | |
217 | * stmt. The processing of braces is then | |
218 | * slightly different */ | |
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219 | int in_stmt; /* set to 1 while in a stmt */ |
220 | int ind_level; /* the current indentation level */ | |
221 | int ind_size; /* the size of one indentation level */ | |
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222 | int ind_stmt; /* set to 1 if next line should have an extra |
223 | * indentation level because we are in the | |
224 | * middle of a stmt */ | |
225 | int last_u_d; /* set to true after scanning a token which | |
226 | * forces a following operator to be unary */ | |
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227 | int leave_comma; /* if true, never break declarations after |
228 | * commas */ | |
229 | int ljust_decl; /* true if declarations should be left | |
230 | * justified */ | |
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231 | int out_coms; /* the number of comments processed, set by |
232 | * pr_comment */ | |
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233 | int out_lines; /* the number of lines written, set by |
234 | * dump_line */ | |
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235 | int p_l_follow; /* used to remember how to indent following |
236 | * statement */ | |
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237 | int paren_level; /* parenthesization level. used to indent |
238 | * within stmts */ | |
239 | short paren_indents[20]; /* column positions of each paren */ | |
240 | int pcase; /* set to 1 if the current line label is a | |
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241 | * case. It is printed differently from a |
242 | * regular label */ | |
243 | int search_brace; /* set to true by parse when it is necessary | |
244 | * to buffer up all info up to the start of a | |
245 | * stmt after an if, while, etc */ | |
246 | int unindent_displace; /* comments not to the right of code | |
247 | * will be placed this many | |
248 | * indentation levels to the left of | |
249 | * code */ | |
250 | int use_ff; /* set to one if the current line should be | |
251 | * terminated with a form feed */ | |
252 | int want_blank; /* set to true when the following token should | |
253 | * be prefixed by a blank. (Said prefixing is | |
254 | * ignored in some cases.) */ | |
255 | int else_if; /* True iff else if pairs should be handled | |
256 | * specially */ | |
257 | int decl_indent; /* column to indent declared identifiers to */ | |
1009bf5e | 258 | int its_a_keyword; |
30f48914 | 259 | int sizeof_keyword; |
1009bf5e | 260 | int dumped_decl_indent; |
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261 | float case_indent; /* The distance to indent case labels from the |
262 | * switch statement */ | |
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263 | int in_parameter_declaration; |
264 | int indent_parameters; | |
265 | int tos; /* pointer to top of stack */ | |
266 | char procname[100]; /* The name of the current procedure */ | |
30f48914 | 267 | int just_saw_decl; |
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268 | } ps; |
269 | ||
30f48914 | 270 | int ifdef_level; |
0c8ee79d | 271 | int rparen_count; |
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272 | struct parser_state state_stack[5]; |
273 | struct parser_state match_state[5]; |