Annotation of src/usr.bin/indent/indent_globs.h, Revision 1.16
1.16 ! jmc 1: /* $OpenBSD: indent_globs.h,v 1.15 2021/01/26 18:21:25 deraadt Exp $ */
1.1 deraadt 2: /*
3: * Copyright (c) 1985 Sun Microsystems, Inc.
1.5 pjanzen 4: * Copyright (c) 1980, 1993
5: * The Regents of the University of California.
1.1 deraadt 6: * Copyright (c) 1976 Board of Trustees of the University of Illinois.
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.
1.9 deraadt 17: * 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 18: * may be used to endorse or promote products derived from this software
19: * without specific prior written permission.
20: *
21: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31: * SUCH DAMAGE.
32: *
1.5 pjanzen 33: * from: @(#)indent_globs.h 8.1 (Berkeley) 6/6/93
1.1 deraadt 34: */
35:
36: #define BACKSLASH '\\'
37: #define bufsize 200 /* size of internal buffers */
38: #define sc_size 5000 /* size of save_com buffer */
39: #define label_offset 2 /* number of levels a label is placed to left
40: * of code */
41:
42: #define tabsize 8 /* the size of a tab */
43: #define tabmask 0177770 /* mask used when figuring length of lines
44: * with tabs */
45:
46:
47: #define false 0
48: #define true 1
49:
50:
1.15 deraadt 51: extern FILE *input; /* the fid for the input file */
52: extern FILE *output; /* the output file */
1.1 deraadt 53:
54: #define CHECK_SIZE_CODE \
55: if (e_code >= l_code) { \
1.8 deraadt 56: int nsize = l_code-s_code+400; \
57: \
1.13 deraadt 58: codebuf = realloc(codebuf, nsize); \
1.5 pjanzen 59: if (codebuf == NULL) \
1.6 pjanzen 60: err(1, NULL); \
1.1 deraadt 61: e_code = codebuf + (e_code-s_code) + 1; \
62: l_code = codebuf + nsize - 5; \
63: s_code = codebuf + 1; \
64: }
65: #define CHECK_SIZE_COM \
66: if (e_com >= l_com) { \
1.8 deraadt 67: int nsize = l_com-s_com+400; \
68: \
1.13 deraadt 69: combuf = realloc(combuf, nsize); \
1.5 pjanzen 70: if (combuf == NULL) \
1.6 pjanzen 71: err(1, NULL); \
1.1 deraadt 72: e_com = combuf + (e_com-s_com) + 1; \
73: l_com = combuf + nsize - 5; \
74: s_com = combuf + 1; \
75: }
76: #define CHECK_SIZE_LAB \
77: if (e_lab >= l_lab) { \
1.8 deraadt 78: int nsize = l_lab-s_lab+400; \
79: \
1.13 deraadt 80: labbuf = realloc(labbuf, nsize); \
1.5 pjanzen 81: if (labbuf == NULL) \
1.6 pjanzen 82: err(1, NULL); \
1.1 deraadt 83: e_lab = labbuf + (e_lab-s_lab) + 1; \
84: l_lab = labbuf + nsize - 5; \
85: s_lab = labbuf + 1; \
86: }
87: #define CHECK_SIZE_TOKEN \
88: if (e_token >= l_token) { \
1.8 deraadt 89: int nsize = l_token-s_token+400; \
90: \
1.13 deraadt 91: tokenbuf = realloc(tokenbuf, nsize); \
1.5 pjanzen 92: if (tokenbuf == NULL) \
1.6 pjanzen 93: err(1, NULL); \
1.1 deraadt 94: e_token = tokenbuf + (e_token-s_token) + 1; \
95: l_token = tokenbuf + nsize - 5; \
96: s_token = tokenbuf + 1; \
97: }
98:
1.15 deraadt 99: extern char *labbuf; /* buffer for label */
100: extern char *s_lab; /* start ... */
101: extern char *e_lab; /* .. and end of stored label */
102: extern char *l_lab; /* limit of label buffer */
103:
104: extern char *codebuf; /* buffer for code section */
105: extern char *s_code; /* start ... */
106: extern char *e_code; /* .. and end of stored code */
107: extern char *l_code; /* limit of code section */
108:
109: extern char *combuf; /* buffer for comments */
110: extern char *s_com; /* start ... */
111: extern char *e_com; /* ... and end of stored comments */
112: extern char *l_com; /* limit of comment buffer */
1.1 deraadt 113:
114: #define token s_token
1.15 deraadt 115: extern char *tokenbuf; /* the last token scanned */
116: extern char *s_token;
117: extern char *e_token;
118: extern char *l_token;
119:
120: extern char *in_buffer; /* input buffer */
121: extern char *in_buffer_limit; /* the end of the input buffer */
122: extern char *buf_ptr; /* ptr to next character to be taken from
1.1 deraadt 123: * in_buffer */
1.15 deraadt 124: extern char *buf_end; /* ptr to first after last char in in_buffer */
1.1 deraadt 125:
1.15 deraadt 126: extern char save_com[sc_size]; /* input text is saved here when looking for
1.1 deraadt 127: * the brace after an if, while, etc */
1.15 deraadt 128: extern char *sc_end; /* pointer into save_com buffer */
1.1 deraadt 129:
1.15 deraadt 130: extern char *bp_save; /* saved value of buf_ptr when taking input
1.1 deraadt 131: * from save_com */
1.15 deraadt 132: extern char *be_save; /* similarly saved value of buf_end */
1.1 deraadt 133:
134:
1.15 deraadt 135: extern int pointer_as_binop;
136: extern int blanklines_after_declarations;
137: extern int blanklines_before_blockcomments;
138: extern int blanklines_after_procs;
139: extern int blanklines_around_conditional_compilation;
140: extern int swallow_optional_blanklines;
141: extern int n_real_blanklines;
142: extern int prefix_blankline_requested;
143: extern int postfix_blankline_requested;
144: extern int break_comma; /* when true and not in parens, break after a
1.1 deraadt 145: * comma */
1.15 deraadt 146: extern int btype_2; /* when true, brace should be on same line as
1.1 deraadt 147: * if, while, etc */
1.15 deraadt 148: extern float case_ind; /* indentation level to be used for a "case
1.1 deraadt 149: * n:" */
1.15 deraadt 150: extern int code_lines; /* count of lines with code */
151: extern int had_eof; /* set to true when input is exhausted */
152: extern int line_no; /* the current line number. */
153: extern int max_col; /* the maximum allowable line length */
154: extern int verbose; /* when true, non-essential error messages are
1.1 deraadt 155: * printed */
1.15 deraadt 156: extern int cuddle_else; /* true if else should cuddle up to '}' */
157: extern int star_comment_cont; /* true iff comment continuation lines should
1.1 deraadt 158: * have stars at the beginning of each line. */
1.15 deraadt 159: extern int comment_delimiter_on_blankline;
160: extern int troff; /* true iff were generating troff input */
161: extern int procnames_start_line; /* if true, the names of procedures
1.1 deraadt 162: * being defined get placed in column
163: * 1 (ie. a newline is placed between
164: * the type of the procedure and its
165: * name) */
1.15 deraadt 166: extern int proc_calls_space; /* If true, procedure calls look like:
1.1 deraadt 167: * foo(bar) rather than foo (bar) */
1.15 deraadt 168: extern int format_col1_comments; /* If comments which start in column 1
1.1 deraadt 169: * are to be magically reformatted
170: * (just like comments that begin in
171: * later columns) */
1.15 deraadt 172: extern int inhibit_formatting; /* true if INDENT OFF is in effect */
173: extern int suppress_blanklines;/* set iff following blanklines should be
1.1 deraadt 174: * suppressed */
1.15 deraadt 175: extern int continuation_indent;/* set to the indentation between the edge of
1.1 deraadt 176: * code and continuation lines */
1.15 deraadt 177: extern int lineup_to_parens; /* if true, continued code within parens will
1.1 deraadt 178: * be lined up to the open paren */
1.15 deraadt 179: extern int Bill_Shannon; /* true iff a blank should always be inserted
1.1 deraadt 180: * after sizeof */
1.15 deraadt 181: extern int blanklines_after_declarations_at_proctop; /* This is vaguely
1.1 deraadt 182: * similar to
183: * blanklines_after_decla
184: * rations except that
185: * it only applies to
186: * the first set of
187: * declarations in a
188: * procedure (just after
189: * the first '{') and it
190: * causes a blank line
191: * to be generated even
192: * if there are no
193: * declarations */
1.15 deraadt 194: extern int block_comment_max_col;
195: extern int extra_expression_indent; /* True if continuation lines from the
1.1 deraadt 196: * expression part of "if(e)",
197: * "while(e)", "for(e;e;e)" should be
198: * indented an extra tab stop so that
199: * they don't conflict with the code
200: * that follows */
1.15 deraadt 201: extern int use_tabs; /* set true to use tabs for spacing,
1.11 jsg 202: * false uses all spaces */
1.1 deraadt 203:
204: /* -troff font state information */
205:
206: struct fstate {
207: char font[4];
208: char size;
209: int allcaps:1;
210: };
211:
1.15 deraadt 212: extern struct fstate
1.1 deraadt 213: keywordf, /* keyword font */
214: stringf, /* string font */
215: boxcomf, /* Box comment font */
216: blkcomf, /* Block comment font */
217: scomf, /* Same line comment font */
218: bodyf; /* major body font */
219:
220:
221: #define STACKSIZE 150
222:
1.15 deraadt 223: extern struct parser_state {
1.1 deraadt 224: int last_token;
225: struct fstate cfont; /* Current font */
226: int p_stack[STACKSIZE]; /* this is the parsers stack */
227: int il[STACKSIZE]; /* this stack stores indentation levels */
228: float cstk[STACKSIZE];/* used to store case stmt indentation levels */
229: int box_com; /* set to true when we are in a "boxed"
230: * comment. In that case, the first non-blank
1.3 mickey 231: * char should be lined up with the / in rem */
1.1 deraadt 232: int comment_delta,
233: n_comment_delta;
234: int cast_mask; /* indicates which close parens close off
235: * casts */
236: int sizeof_mask; /* indicates which close parens close off
237: * sizeof''s */
238: int block_init; /* true iff inside a block initialization */
239: int block_init_level; /* The level of brace nesting in an
240: * initialization */
241: int last_nl; /* this is true if the last thing scanned was
242: * a newline */
243: int in_or_st; /* Will be true iff there has been a
244: * declarator (e.g. int or char) and no left
245: * paren since the last semicolon. When true,
246: * a '{' is starting a structure definition or
247: * an initialization list */
248: int bl_line; /* set to 1 by dump_line if the line is blank */
249: int col_1; /* set to true if the last token started in
250: * column 1 */
251: int com_col; /* this is the column in which the current
1.16 ! jmc 252: * comment should start */
1.1 deraadt 253: int com_ind; /* the column in which comments to the right
254: * of code should start */
255: int com_lines; /* the number of lines with comments, set by
256: * dump_line */
257: int dec_nest; /* current nesting level for structure or init */
258: int decl_com_ind; /* the column in which comments after
259: * declarations should be put */
260: int decl_on_line; /* set to true if this line of code has part
261: * of a declaration on it */
262: int i_l_follow; /* the level to which ind_level should be set
263: * after the current line is printed */
264: int in_decl; /* set to true when we are in a declaration
265: * stmt. The processing of braces is then
266: * slightly different */
267: int in_stmt; /* set to 1 while in a stmt */
268: int ind_level; /* the current indentation level */
269: int ind_size; /* the size of one indentation level */
270: int ind_stmt; /* set to 1 if next line should have an extra
271: * indentation level because we are in the
272: * middle of a stmt */
273: int last_u_d; /* set to true after scanning a token which
274: * forces a following operator to be unary */
275: int leave_comma; /* if true, never break declarations after
276: * commas */
277: int ljust_decl; /* true if declarations should be left
278: * justified */
279: int out_coms; /* the number of comments processed, set by
280: * pr_comment */
281: int out_lines; /* the number of lines written, set by
282: * dump_line */
283: int p_l_follow; /* used to remember how to indent following
284: * statement */
285: int paren_level; /* parenthesization level. used to indent
286: * within stmts */
287: short paren_indents[20]; /* column positions of each paren */
288: int pcase; /* set to 1 if the current line label is a
289: * case. It is printed differently from a
290: * regular label */
291: int search_brace; /* set to true by parse when it is necessary
292: * to buffer up all info up to the start of a
293: * stmt after an if, while, etc */
294: int unindent_displace; /* comments not to the right of code
295: * will be placed this many
296: * indentation levels to the left of
297: * code */
298: int use_ff; /* set to one if the current line should be
299: * terminated with a form feed */
300: int want_blank; /* set to true when the following token should
301: * be prefixed by a blank. (Said prefixing is
302: * ignored in some cases.) */
303: int else_if; /* True iff else if pairs should be handled
304: * specially */
305: int decl_indent; /* column to indent declared identifiers to */
306: int its_a_keyword;
307: int sizeof_keyword;
308: int dumped_decl_indent;
309: float case_indent; /* The distance to indent case labels from the
310: * switch statement */
311: int in_parameter_declaration;
312: int indent_parameters;
313: int tos; /* pointer to top of stack */
314: char procname[100]; /* The name of the current procedure */
315: int just_saw_decl;
316: } ps;
317:
1.15 deraadt 318: extern int ifdef_level;
319: extern int rparen_count;
320: extern struct parser_state state_stack[5];
321: extern struct parser_state match_state[5];
1.5 pjanzen 322:
1.7 millert 323: int compute_code_target(void);
324: int compute_label_target(void);
325: int count_spaces(int, char *);
1.14 guenther 326: void diag(int, const char *, ...) __attribute__((__format__ (printf, 2, 3)));
1.7 millert 327: void dump_line(void);
328: int eqin(char *, char *);
329: void fill_buffer(void);
330: int pad_output(int, int);
331: void scan_profile(FILE *);
332: void set_defaults(void);
333: void set_option(char *);
334: void addkey(char *, int);
335: void set_profile(void);
336: char *chfont(struct fstate *, struct fstate *, char *);
337: void parsefont(struct fstate *, char *);
338: void writefdef(struct fstate *, int);
339: int lexi(void);
340: void reduce(void);
341: void parse(int);
342: void pr_comment(void);
343: void bakcopy(void);
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