1 /* $Id: mandoc.h,v 1.248 2018/07/28 18:34:15 schwarze Exp $ */
2 /*
3 * Copyright (c) 2010, 2011, 2014 Kristaps Dzonsons <kristaps@bsd.lv>
4 * Copyright (c) 2010-2018 Ingo Schwarze <schwarze@openbsd.org>
5 *
6 * Permission to use, copy, modify, and distribute this software for any
7 * purpose with or without fee is hereby granted, provided that the above
8 * copyright notice and this permission notice appear in all copies.
9 *
10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 */
18
19 #define ASCII_NBRSP 31 /* non-breaking space */
20 #define ASCII_HYPH 30 /* breakable hyphen */
21 #define ASCII_BREAK 29 /* breakable zero-width space */
22
23 /*
24 * Status level. This refers to both internal status (i.e., whilst
25 * running, when warnings/errors are reported) and an indicator of a
26 * threshold of when to halt (when said internal state exceeds the
27 * threshold).
28 */
29 enum mandoclevel {
30 MANDOCLEVEL_OK = 0,
31 MANDOCLEVEL_STYLE, /* style suggestions */
32 MANDOCLEVEL_WARNING, /* warnings: syntax, whitespace, etc. */
33 MANDOCLEVEL_ERROR, /* input has been thrown away */
34 MANDOCLEVEL_UNSUPP, /* input needs unimplemented features */
35 MANDOCLEVEL_BADARG, /* bad argument in invocation */
36 MANDOCLEVEL_SYSERR, /* system error */
37 MANDOCLEVEL_MAX
38 };
39
40 /*
41 * All possible things that can go wrong within a parse, be it libroff,
42 * libmdoc, or libman.
43 */
44 enum mandocerr {
45 MANDOCERR_OK,
46
47 MANDOCERR_BASE, /* ===== start of base system conventions ===== */
48
49 MANDOCERR_MDOCDATE, /* Mdocdate found: Dd ... */
50 MANDOCERR_MDOCDATE_MISSING, /* Mdocdate missing: Dd ... */
51 MANDOCERR_ARCH_BAD, /* unknown architecture: Dt ... arch */
52 MANDOCERR_OS_ARG, /* operating system explicitly specified: Os ... */
53 MANDOCERR_RCS_MISSING, /* RCS id missing */
54 MANDOCERR_XR_BAD, /* referenced manual not found: Xr name sec */
55
56 MANDOCERR_STYLE, /* ===== start of style suggestions ===== */
57
58 MANDOCERR_DATE_LEGACY, /* legacy man(7) date format: Dd ... */
59 MANDOCERR_DATE_NORM, /* normalizing date format to: ... */
60 MANDOCERR_TITLE_CASE, /* lower case character in document title */
61 MANDOCERR_RCS_REP, /* duplicate RCS id: ... */
62 MANDOCERR_SEC_TYPO, /* possible typo in section name: Sh ... */
63 MANDOCERR_ARG_QUOTE, /* unterminated quoted argument */
64 MANDOCERR_MACRO_USELESS, /* useless macro: macro */
65 MANDOCERR_BX, /* consider using OS macro: macro */
66 MANDOCERR_ER_ORDER, /* errnos out of order: Er ... */
67 MANDOCERR_ER_REP, /* duplicate errno: Er ... */
68 MANDOCERR_DELIM, /* trailing delimiter: macro ... */
69 MANDOCERR_DELIM_NB, /* no blank before trailing delimiter: macro ... */
70 MANDOCERR_FI_SKIP, /* fill mode already enabled, skipping: fi */
71 MANDOCERR_NF_SKIP, /* fill mode already disabled, skipping: nf */
72 MANDOCERR_DASHDASH, /* verbatim "--", maybe consider using \(em */
73 MANDOCERR_FUNC, /* function name without markup: name() */
74 MANDOCERR_SPACE_EOL, /* whitespace at end of input line */
75 MANDOCERR_COMMENT_BAD, /* bad comment style */
76
77 MANDOCERR_WARNING, /* ===== start of warnings ===== */
78
79 /* related to the prologue */
80 MANDOCERR_DT_NOTITLE, /* missing manual title, using UNTITLED: line */
81 MANDOCERR_TH_NOTITLE, /* missing manual title, using "": [macro] */
82 MANDOCERR_MSEC_MISSING, /* missing manual section, using "": macro */
83 MANDOCERR_MSEC_BAD, /* unknown manual section: Dt ... section */
84 MANDOCERR_DATE_MISSING, /* missing date, using today's date */
85 MANDOCERR_DATE_BAD, /* cannot parse date, using it verbatim: date */
86 MANDOCERR_DATE_FUTURE, /* date in the future, using it anyway: date */
87 MANDOCERR_OS_MISSING, /* missing Os macro, using "" */
88 MANDOCERR_PROLOG_LATE, /* late prologue macro: macro */
89 MANDOCERR_PROLOG_ORDER, /* prologue macros out of order: macros */
90
91 /* related to document structure */
92 MANDOCERR_SO, /* .so is fragile, better use ln(1): so path */
93 MANDOCERR_DOC_EMPTY, /* no document body */
94 MANDOCERR_SEC_BEFORE, /* content before first section header: macro */
95 MANDOCERR_NAMESEC_FIRST, /* first section is not NAME: Sh title */
96 MANDOCERR_NAMESEC_NONM, /* NAME section without Nm before Nd */
97 MANDOCERR_NAMESEC_NOND, /* NAME section without description */
98 MANDOCERR_NAMESEC_ND, /* description not at the end of NAME */
99 MANDOCERR_NAMESEC_BAD, /* bad NAME section content: macro */
100 MANDOCERR_NAMESEC_PUNCT, /* missing comma before name: Nm name */
101 MANDOCERR_ND_EMPTY, /* missing description line, using "" */
102 MANDOCERR_ND_LATE, /* description line outside NAME section */
103 MANDOCERR_SEC_ORDER, /* sections out of conventional order: Sh title */
104 MANDOCERR_SEC_REP, /* duplicate section title: Sh title */
105 MANDOCERR_SEC_MSEC, /* unexpected section: Sh title for ... only */
106 MANDOCERR_XR_SELF, /* cross reference to self: Xr name sec */
107 MANDOCERR_XR_ORDER, /* unusual Xr order: ... after ... */
108 MANDOCERR_XR_PUNCT, /* unusual Xr punctuation: ... after ... */
109 MANDOCERR_AN_MISSING, /* AUTHORS section without An macro */
110
111 /* related to macros and nesting */
112 MANDOCERR_MACRO_OBS, /* obsolete macro: macro */
113 MANDOCERR_MACRO_CALL, /* macro neither callable nor escaped: macro */
114 MANDOCERR_PAR_SKIP, /* skipping paragraph macro: macro ... */
115 MANDOCERR_PAR_MOVE, /* moving paragraph macro out of list: macro */
116 MANDOCERR_NS_SKIP, /* skipping no-space macro */
117 MANDOCERR_BLK_NEST, /* blocks badly nested: macro ... */
118 MANDOCERR_BD_NEST, /* nested displays are not portable: macro ... */
119 MANDOCERR_BL_MOVE, /* moving content out of list: macro */
120 MANDOCERR_TA_LINE, /* first macro on line: Ta */
121 MANDOCERR_BLK_LINE, /* line scope broken: macro breaks macro */
122 MANDOCERR_BLK_BLANK, /* skipping blank line in line scope */
123
124 /* related to missing arguments */
125 MANDOCERR_REQ_EMPTY, /* skipping empty request: request */
126 MANDOCERR_COND_EMPTY, /* conditional request controls empty scope */
127 MANDOCERR_MACRO_EMPTY, /* skipping empty macro: macro */
128 MANDOCERR_BLK_EMPTY, /* empty block: macro */
129 MANDOCERR_ARG_EMPTY, /* empty argument, using 0n: macro arg */
130 MANDOCERR_BD_NOTYPE, /* missing display type, using -ragged: Bd */
131 MANDOCERR_BL_LATETYPE, /* list type is not the first argument: Bl arg */
132 MANDOCERR_BL_NOWIDTH, /* missing -width in -tag list, using 6n */
133 MANDOCERR_EX_NONAME, /* missing utility name, using "": Ex */
134 MANDOCERR_FO_NOHEAD, /* missing function name, using "": Fo */
135 MANDOCERR_IT_NOHEAD, /* empty head in list item: Bl -type It */
136 MANDOCERR_IT_NOBODY, /* empty list item: Bl -type It */
137 MANDOCERR_IT_NOARG, /* missing argument, using next line: Bl -c It */
138 MANDOCERR_BF_NOFONT, /* missing font type, using \fR: Bf */
139 MANDOCERR_BF_BADFONT, /* unknown font type, using \fR: Bf font */
140 MANDOCERR_PF_SKIP, /* nothing follows prefix: Pf arg */
141 MANDOCERR_RS_EMPTY, /* empty reference block: Rs */
142 MANDOCERR_XR_NOSEC, /* missing section argument: Xr arg */
143 MANDOCERR_ARG_STD, /* missing -std argument, adding it: macro */
144 MANDOCERR_OP_EMPTY, /* missing option string, using "": OP */
145 MANDOCERR_UR_NOHEAD, /* missing resource identifier, using "": UR */
146 MANDOCERR_EQN_NOBOX, /* missing eqn box, using "": op */
147
148 /* related to bad arguments */
149 MANDOCERR_ARG_REP, /* duplicate argument: macro arg */
150 MANDOCERR_AN_REP, /* skipping duplicate argument: An -arg */
151 MANDOCERR_BD_REP, /* skipping duplicate display type: Bd -type */
152 MANDOCERR_BL_REP, /* skipping duplicate list type: Bl -type */
153 MANDOCERR_BL_SKIPW, /* skipping -width argument: Bl -type */
154 MANDOCERR_BL_COL, /* wrong number of cells */
155 MANDOCERR_AT_BAD, /* unknown AT&T UNIX version: At version */
156 MANDOCERR_FA_COMMA, /* comma in function argument: arg */
157 MANDOCERR_FN_PAREN, /* parenthesis in function name: arg */
158 MANDOCERR_LB_BAD, /* unknown library name: Lb ... */
159 MANDOCERR_RS_BAD, /* invalid content in Rs block: macro */
160 MANDOCERR_SM_BAD, /* invalid Boolean argument: macro arg */
161 MANDOCERR_FT_BAD, /* unknown font, skipping request: ft font */
162 MANDOCERR_TR_ODD, /* odd number of characters in request: tr char */
163
164 /* related to plain text */
165 MANDOCERR_FI_BLANK, /* blank line in fill mode, using .sp */
166 MANDOCERR_FI_TAB, /* tab in filled text */
167 MANDOCERR_EOS, /* new sentence, new line */
168 MANDOCERR_ESC_BAD, /* invalid escape sequence: esc */
169 MANDOCERR_STR_UNDEF, /* undefined string, using "": name */
170
171 /* related to tables */
172 MANDOCERR_TBLLAYOUT_SPAN, /* tbl line starts with span */
173 MANDOCERR_TBLLAYOUT_DOWN, /* tbl column starts with span */
174 MANDOCERR_TBLLAYOUT_VERT, /* skipping vertical bar in tbl layout */
175
176 MANDOCERR_ERROR, /* ===== start of errors ===== */
177
178 /* related to tables */
179 MANDOCERR_TBLOPT_ALPHA, /* non-alphabetic character in tbl options */
180 MANDOCERR_TBLOPT_BAD, /* skipping unknown tbl option: option */
181 MANDOCERR_TBLOPT_NOARG, /* missing tbl option argument: option */
182 MANDOCERR_TBLOPT_ARGSZ, /* wrong tbl option argument size: option */
183 MANDOCERR_TBLLAYOUT_NONE, /* empty tbl layout */
184 MANDOCERR_TBLLAYOUT_CHAR, /* invalid character in tbl layout: char */
185 MANDOCERR_TBLLAYOUT_PAR, /* unmatched parenthesis in tbl layout */
186 MANDOCERR_TBLDATA_NONE, /* tbl without any data cells */
187 MANDOCERR_TBLDATA_SPAN, /* ignoring data in spanned tbl cell: data */
188 MANDOCERR_TBLDATA_EXTRA, /* ignoring extra tbl data cells: data */
189 MANDOCERR_TBLDATA_BLK, /* data block open at end of tbl: macro */
190
191 /* related to document structure and macros */
192 MANDOCERR_FILE, /* cannot open file */
193 MANDOCERR_PROLOG_REP, /* duplicate prologue macro: macro */
194 MANDOCERR_DT_LATE, /* skipping late title macro: Dt args */
195 MANDOCERR_ROFFLOOP, /* input stack limit exceeded, infinite loop? */
196 MANDOCERR_CHAR_BAD, /* skipping bad character: number */
197 MANDOCERR_MACRO, /* skipping unknown macro: macro */
198 MANDOCERR_REQ_INSEC, /* skipping insecure request: request */
199 MANDOCERR_IT_STRAY, /* skipping item outside list: It ... */
200 MANDOCERR_TA_STRAY, /* skipping column outside column list: Ta */
201 MANDOCERR_BLK_NOTOPEN, /* skipping end of block that is not open */
202 MANDOCERR_RE_NOTOPEN, /* fewer RS blocks open, skipping: RE arg */
203 MANDOCERR_BLK_BROKEN, /* inserting missing end of block: macro ... */
204 MANDOCERR_BLK_NOEND, /* appending missing end of block: macro */
205
206 /* related to request and macro arguments */
207 MANDOCERR_NAMESC, /* escaped character not allowed in a name: name */
208 MANDOCERR_BD_FILE, /* NOT IMPLEMENTED: Bd -file */
209 MANDOCERR_BD_NOARG, /* skipping display without arguments: Bd */
210 MANDOCERR_BL_NOTYPE, /* missing list type, using -item: Bl */
211 MANDOCERR_CE_NONUM, /* argument is not numeric, using 1: ce ... */
212 MANDOCERR_NM_NONAME, /* missing manual name, using "": Nm */
213 MANDOCERR_OS_UNAME, /* uname(3) system call failed, using UNKNOWN */
214 MANDOCERR_ST_BAD, /* unknown standard specifier: St standard */
215 MANDOCERR_IT_NONUM, /* skipping request without numeric argument */
216 MANDOCERR_SO_PATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */
217 MANDOCERR_SO_FAIL, /* .so request failed */
218 MANDOCERR_ARG_SKIP, /* skipping all arguments: macro args */
219 MANDOCERR_ARG_EXCESS, /* skipping excess arguments: macro ... args */
220 MANDOCERR_DIVZERO, /* divide by zero */
221
222 MANDOCERR_UNSUPP, /* ===== start of unsupported features ===== */
223
224 MANDOCERR_TOOLARGE, /* input too large */
225 MANDOCERR_CHAR_UNSUPP, /* unsupported control character: number */
226 MANDOCERR_REQ_UNSUPP, /* unsupported roff request: request */
227 MANDOCERR_TBLOPT_EQN, /* eqn delim option in tbl: arg */
228 MANDOCERR_TBLLAYOUT_MOD, /* unsupported tbl layout modifier: m */
229 MANDOCERR_TBLMACRO, /* ignoring macro in table: macro */
230
231 MANDOCERR_MAX
232 };
233
234 struct tbl_opts {
235 char tab; /* cell-separator */
236 char decimal; /* decimal point */
237 int opts;
238 #define TBL_OPT_CENTRE (1 << 0)
239 #define TBL_OPT_EXPAND (1 << 1)
240 #define TBL_OPT_BOX (1 << 2)
241 #define TBL_OPT_DBOX (1 << 3)
242 #define TBL_OPT_ALLBOX (1 << 4)
243 #define TBL_OPT_NOKEEP (1 << 5)
244 #define TBL_OPT_NOSPACE (1 << 6)
245 #define TBL_OPT_NOWARN (1 << 7)
246 int cols; /* number of columns */
247 int lvert; /* width of left vertical line */
248 int rvert; /* width of right vertical line */
249 };
250
251 enum tbl_cellt {
252 TBL_CELL_CENTRE, /* c, C */
253 TBL_CELL_RIGHT, /* r, R */
254 TBL_CELL_LEFT, /* l, L */
255 TBL_CELL_NUMBER, /* n, N */
256 TBL_CELL_SPAN, /* s, S */
257 TBL_CELL_LONG, /* a, A */
258 TBL_CELL_DOWN, /* ^ */
259 TBL_CELL_HORIZ, /* _, - */
260 TBL_CELL_DHORIZ, /* = */
261 TBL_CELL_MAX
262 };
263
264 /*
265 * A cell in a layout row.
266 */
267 struct tbl_cell {
268 struct tbl_cell *next;
269 char *wstr; /* min width represented as a string */
270 size_t width; /* minimum column width */
271 size_t spacing; /* to the right of the column */
272 int vert; /* width of subsequent vertical line */
273 int col; /* column number, starting from 0 */
274 int flags;
275 #define TBL_CELL_TALIGN (1 << 0) /* t, T */
276 #define TBL_CELL_BALIGN (1 << 1) /* d, D */
277 #define TBL_CELL_BOLD (1 << 2) /* fB, B, b */
278 #define TBL_CELL_ITALIC (1 << 3) /* fI, I, i */
279 #define TBL_CELL_EQUAL (1 << 4) /* e, E */
280 #define TBL_CELL_UP (1 << 5) /* u, U */
281 #define TBL_CELL_WIGN (1 << 6) /* z, Z */
282 #define TBL_CELL_WMAX (1 << 7) /* x, X */
283 enum tbl_cellt pos;
284 };
285
286 /*
287 * A layout row.
288 */
289 struct tbl_row {
290 struct tbl_row *next;
291 struct tbl_cell *first;
292 struct tbl_cell *last;
293 int vert; /* width of left vertical line */
294 };
295
296 enum tbl_datt {
297 TBL_DATA_NONE, /* has no data */
298 TBL_DATA_DATA, /* consists of data/string */
299 TBL_DATA_HORIZ, /* horizontal line */
300 TBL_DATA_DHORIZ, /* double-horizontal line */
301 TBL_DATA_NHORIZ, /* squeezed horizontal line */
302 TBL_DATA_NDHORIZ /* squeezed double-horizontal line */
303 };
304
305 /*
306 * A cell within a row of data. The "string" field contains the actual
307 * string value that's in the cell. The rest is layout.
308 */
309 struct tbl_dat {
310 struct tbl_cell *layout; /* layout cell */
311 struct tbl_dat *next;
312 char *string; /* data (NULL if not TBL_DATA_DATA) */
313 int spans; /* how many spans follow */
314 int block; /* T{ text block T} */
315 enum tbl_datt pos;
316 };
317
318 enum tbl_spant {
319 TBL_SPAN_DATA, /* span consists of data */
320 TBL_SPAN_HORIZ, /* span is horizontal line */
321 TBL_SPAN_DHORIZ /* span is double horizontal line */
322 };
323
324 /*
325 * A row of data in a table.
326 */
327 struct tbl_span {
328 struct tbl_opts *opts;
329 struct tbl_row *layout; /* layout row */
330 struct tbl_dat *first;
331 struct tbl_dat *last;
332 struct tbl_span *prev;
333 struct tbl_span *next;
334 int line; /* parse line */
335 enum tbl_spant pos;
336 };
337
338 enum eqn_boxt {
339 EQN_TEXT, /* text (number, variable, whatever) */
340 EQN_SUBEXPR, /* nested `eqn' subexpression */
341 EQN_LIST, /* list (braces, etc.) */
342 EQN_PILE, /* vertical pile */
343 EQN_MATRIX /* pile of piles */
344 };
345
346 enum eqn_fontt {
347 EQNFONT_NONE = 0,
348 EQNFONT_ROMAN,
349 EQNFONT_BOLD,
350 EQNFONT_FAT,
351 EQNFONT_ITALIC,
352 EQNFONT__MAX
353 };
354
355 enum eqn_post {
356 EQNPOS_NONE = 0,
357 EQNPOS_SUP,
358 EQNPOS_SUBSUP,
359 EQNPOS_SUB,
360 EQNPOS_TO,
361 EQNPOS_FROM,
362 EQNPOS_FROMTO,
363 EQNPOS_OVER,
364 EQNPOS_SQRT,
365 EQNPOS__MAX
366 };
367
368 enum eqn_pilet {
369 EQNPILE_NONE = 0,
370 EQNPILE_PILE,
371 EQNPILE_CPILE,
372 EQNPILE_RPILE,
373 EQNPILE_LPILE,
374 EQNPILE_COL,
375 EQNPILE_CCOL,
376 EQNPILE_RCOL,
377 EQNPILE_LCOL,
378 EQNPILE__MAX
379 };
380
381 /*
382 * A "box" is a parsed mathematical expression as defined by the eqn.7
383 * grammar.
384 */
385 struct eqn_box {
386 int size; /* font size of expression */
387 #define EQN_DEFSIZE INT_MIN
388 enum eqn_boxt type; /* type of node */
389 struct eqn_box *first; /* first child node */
390 struct eqn_box *last; /* last child node */
391 struct eqn_box *next; /* node sibling */
392 struct eqn_box *prev; /* node sibling */
393 struct eqn_box *parent; /* node sibling */
394 char *text; /* text (or NULL) */
395 char *left; /* fence left-hand */
396 char *right; /* fence right-hand */
397 char *top; /* expression over-symbol */
398 char *bottom; /* expression under-symbol */
399 size_t args; /* arguments in parent */
400 size_t expectargs; /* max arguments in parent */
401 enum eqn_post pos; /* position of next box */
402 enum eqn_fontt font; /* font of box */
403 enum eqn_pilet pile; /* equation piling */
404 };
405
406 /*
407 * Parse options.
408 */
409 #define MPARSE_MDOC 1 /* assume -mdoc */
410 #define MPARSE_MAN 2 /* assume -man */
411 #define MPARSE_SO 4 /* honour .so requests */
412 #define MPARSE_QUICK 8 /* abort the parse early */
413 #define MPARSE_UTF8 16 /* accept UTF-8 input */
414 #define MPARSE_LATIN1 32 /* accept ISO-LATIN-1 input */
415
416 enum mandoc_os {
417 MANDOC_OS_OTHER = 0,
418 MANDOC_OS_NETBSD,
419 MANDOC_OS_OPENBSD
420 };
421
422 enum mandoc_esc {
423 ESCAPE_ERROR = 0, /* bail! unparsable escape */
424 ESCAPE_IGNORE, /* escape to be ignored */
425 ESCAPE_SPECIAL, /* a regular special character */
426 ESCAPE_FONT, /* a generic font mode */
427 ESCAPE_FONTBOLD, /* bold font mode */
428 ESCAPE_FONTITALIC, /* italic font mode */
429 ESCAPE_FONTBI, /* bold italic font mode */
430 ESCAPE_FONTROMAN, /* roman font mode */
431 ESCAPE_FONTPREV, /* previous font mode */
432 ESCAPE_NUMBERED, /* a numbered glyph */
433 ESCAPE_UNICODE, /* a unicode codepoint */
434 ESCAPE_BREAK, /* break the output line */
435 ESCAPE_NOSPACE, /* suppress space if the last on a line */
436 ESCAPE_HORIZ, /* horizontal movement */
437 ESCAPE_HLINE, /* horizontal line drawing */
438 ESCAPE_SKIPCHAR, /* skip the next character */
439 ESCAPE_OVERSTRIKE /* overstrike all chars in the argument */
440 };
441
442 typedef void (*mandocmsg)(enum mandocerr, enum mandoclevel,
443 const char *, int, int, const char *);
444
445
446 struct mparse;
447 struct roff_man;
448
449 enum mandoc_esc mandoc_escape(const char **, const char **, int *);
450 void mchars_alloc(void);
451 void mchars_free(void);
452 int mchars_num2char(const char *, size_t);
453 const char *mchars_uc2str(int);
454 int mchars_num2uc(const char *, size_t);
455 int mchars_spec2cp(const char *, size_t);
456 const char *mchars_spec2str(const char *, size_t, size_t *);
457 struct mparse *mparse_alloc(int, enum mandocerr, mandocmsg,
458 enum mandoc_os, const char *);
459 void mparse_free(struct mparse *);
460 void mparse_keep(struct mparse *);
461 int mparse_open(struct mparse *, const char *);
462 enum mandoclevel mparse_readfd(struct mparse *, int, const char *);
463 enum mandoclevel mparse_readmem(struct mparse *, void *, size_t,
464 const char *);
465 void mparse_reset(struct mparse *);
466 void mparse_result(struct mparse *,
467 struct roff_man **, char **);
468 const char *mparse_getkeep(const struct mparse *);
469 const char *mparse_strerror(enum mandocerr);
470 const char *mparse_strlevel(enum mandoclevel);
471 void mparse_updaterc(struct mparse *, enum mandoclevel *);