1 /*        Id: libmandoc.h,v 1.77 2018/12/21 17:15:18 schwarze Exp  */
2 /*
3  * Copyright (c) 2009, 2010, 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
4  * Copyright (c) 2013,2014,2015,2017,2018 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 /*
20  * Return codes passed from the roff parser to the main parser.
21  */
22 
23 /* Main instruction: what to do with the returned line. */
24 #define   ROFF_IGN  0x000     /* Don't do anything with it. */
25 #define   ROFF_CONT 0x001     /* Give it to the high-level parser. */
26 #define   ROFF_RERUN          0x002     /* Re-run the roff parser with an offset. */
27 #define   ROFF_REPARSE        0x004     /* Recursively run the main parser on it. */
28 #define   ROFF_SO             0x008     /* Include the named file. */
29 #define   ROFF_MASK 0x00f     /* Only one of these bits should be set. */
30 
31 /* Options for further parsing, to be OR'ed with the above. */
32 #define   ROFF_APPEND         0x010     /* Append the next line to this one. */
33 #define   ROFF_USERCALL       0x020     /* Start execution of a new macro. */
34 #define   ROFF_USERRET        0x040     /* Abort execution of the current macro. */
35 #define   ROFF_WHILE          0x100     /* Start a new .while loop. */
36 #define   ROFF_LOOPCONT       0x200     /* Iterate the current .while loop. */
37 #define   ROFF_LOOPEXIT       0x400     /* Exit the current .while loop. */
38 #define   ROFF_LOOPMASK       0xf00
39 
40 
41 struct    buf {
42           char                *buf;
43           size_t               sz;
44           struct buf          *next;
45 };
46 
47 
48 struct    roff;
49 struct    roff_man;
50 enum      mandocerr;
51 
52 char                *mandoc_normdate(struct roff_man *, char *, int, int);
53 int                  mandoc_eos(const char *, size_t);
54 int                  mandoc_strntoi(const char *, size_t, int);
55 const char          *mandoc_a2msec(const char*);
56 
57 int                  mdoc_parseln(struct roff_man *, int, char *, int);
58 void                 mdoc_endparse(struct roff_man *);
59 
60 int                  man_parseln(struct roff_man *, int, char *, int);
61 void                 man_endparse(struct roff_man *);
62 
63 int                  preconv_cue(const struct buf *, size_t);
64 int                  preconv_encode(const struct buf *, size_t *,
65                               struct buf *, size_t *, int *);
66 
67 void                 roff_free(struct roff *);
68 struct roff         *roff_alloc(int);
69 void                 roff_reset(struct roff *);
70 void                 roff_man_free(struct roff_man *);
71 struct roff_man     *roff_man_alloc(struct roff *, const char *, int);
72 void                 roff_man_reset(struct roff_man *);
73 int                  roff_parseln(struct roff *, int, struct buf *, int *);
74 void                 roff_userret(struct roff *);
75 void                 roff_endparse(struct roff *);
76 void                 roff_setreg(struct roff *, const char *, int, char sign);
77 int                  roff_getreg(struct roff *, const char *);
78 char                *roff_strdup(const struct roff *, const char *);
79 char                *roff_getarg(struct roff *, char **, int, int *);
80 int                  roff_getcontrol(const struct roff *,
81                               const char *, int *);
82 int                  roff_getformat(const struct roff *);
83