xref: /dragonfly/contrib/mdocml/libmdoc.h (revision 548a3528)
1 /*	$Id: libmdoc.h,v 1.82 2013/10/21 23:47:58 schwarze Exp $ */
2 /*
3  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
4  * Copyright (c) 2013 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 AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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 #ifndef LIBMDOC_H
19 #define LIBMDOC_H
20 
21 enum	mdoc_next {
22 	MDOC_NEXT_SIBLING = 0,
23 	MDOC_NEXT_CHILD
24 };
25 
26 struct	mdoc {
27 	struct mparse	 *parse; /* parse pointer */
28 	char		 *defos; /* default argument for .Os */
29 	int		  flags; /* parse flags */
30 #define	MDOC_HALT	 (1 << 0) /* error in parse: halt */
31 #define	MDOC_LITERAL	 (1 << 1) /* in a literal scope */
32 #define	MDOC_PBODY	 (1 << 2) /* in the document body */
33 #define	MDOC_NEWLINE	 (1 << 3) /* first macro/text in a line */
34 #define	MDOC_PHRASELIT	 (1 << 4) /* literal within a partila phrase */
35 #define	MDOC_PPHRASE	 (1 << 5) /* within a partial phrase */
36 #define	MDOC_FREECOL	 (1 << 6) /* `It' invocation should close */
37 #define	MDOC_SYNOPSIS	 (1 << 7) /* SYNOPSIS-style formatting */
38 #define	MDOC_KEEP	 (1 << 8) /* in a word keep */
39 #define	MDOC_SMOFF	 (1 << 9) /* spacing is off */
40 	enum mdoc_next	  next; /* where to put the next node */
41 	struct mdoc_node *last; /* the last node parsed */
42 	struct mdoc_node *first; /* the first node parsed */
43 	struct mdoc_meta  meta; /* document meta-data */
44 	enum mdoc_sec	  lastnamed;
45 	enum mdoc_sec	  lastsec;
46 	struct roff	 *roff;
47 };
48 
49 #define	MACRO_PROT_ARGS	struct mdoc *mdoc, \
50 			enum mdoct tok, \
51 			int line, \
52 			int ppos, \
53 			int *pos, \
54 			char *buf
55 
56 struct	mdoc_macro {
57 	int		(*fp)(MACRO_PROT_ARGS);
58 	int		  flags;
59 #define	MDOC_CALLABLE	 (1 << 0)
60 #define	MDOC_PARSED	 (1 << 1)
61 #define	MDOC_EXPLICIT	 (1 << 2)
62 #define	MDOC_PROLOGUE	 (1 << 3)
63 #define	MDOC_IGNDELIM	 (1 << 4)
64 #define	MDOC_JOIN	 (1 << 5)
65 };
66 
67 enum	margserr {
68 	ARGS_ERROR,
69 	ARGS_EOLN, /* end-of-line */
70 	ARGS_WORD, /* normal word */
71 	ARGS_PUNCT, /* series of punctuation */
72 	ARGS_QWORD, /* quoted word */
73 	ARGS_PHRASE, /* Ta'd phrase (-column) */
74 	ARGS_PPHRASE, /* tabbed phrase (-column) */
75 	ARGS_PEND /* last phrase (-column) */
76 };
77 
78 enum	margverr {
79 	ARGV_ERROR,
80 	ARGV_EOLN, /* end of line */
81 	ARGV_ARG, /* valid argument */
82 	ARGV_WORD /* normal word (or bad argument---same thing) */
83 };
84 
85 /*
86  * A punctuation delimiter is opening, closing, or "middle mark"
87  * punctuation.  These govern spacing.
88  * Opening punctuation (e.g., the opening parenthesis) suppresses the
89  * following space; closing punctuation (e.g., the closing parenthesis)
90  * suppresses the leading space; middle punctuation (e.g., the vertical
91  * bar) can do either.  The middle punctuation delimiter bends the rules
92  * depending on usage.
93  */
94 enum	mdelim {
95 	DELIM_NONE = 0,
96 	DELIM_OPEN,
97 	DELIM_MIDDLE,
98 	DELIM_CLOSE,
99 	DELIM_MAX
100 };
101 
102 extern	const struct mdoc_macro *const mdoc_macros;
103 
104 __BEGIN_DECLS
105 
106 #define		  mdoc_pmsg(mdoc, l, p, t) \
107 		  mandoc_msg((t), (mdoc)->parse, (l), (p), NULL)
108 #define		  mdoc_nmsg(mdoc, n, t) \
109 		  mandoc_msg((t), (mdoc)->parse, (n)->line, (n)->pos, NULL)
110 int		  mdoc_macro(MACRO_PROT_ARGS);
111 int		  mdoc_word_alloc(struct mdoc *,
112 			int, int, const char *);
113 void		  mdoc_word_append(struct mdoc *, const char *);
114 int		  mdoc_elem_alloc(struct mdoc *, int, int,
115 			enum mdoct, struct mdoc_arg *);
116 int		  mdoc_block_alloc(struct mdoc *, int, int,
117 			enum mdoct, struct mdoc_arg *);
118 int		  mdoc_head_alloc(struct mdoc *, int, int, enum mdoct);
119 int		  mdoc_tail_alloc(struct mdoc *, int, int, enum mdoct);
120 int		  mdoc_body_alloc(struct mdoc *, int, int, enum mdoct);
121 int		  mdoc_endbody_alloc(struct mdoc *, int, int, enum mdoct,
122 			struct mdoc_node *, enum mdoc_endbody);
123 void		  mdoc_node_delete(struct mdoc *, struct mdoc_node *);
124 int		  mdoc_node_relink(struct mdoc *, struct mdoc_node *);
125 void		  mdoc_hash_init(void);
126 enum mdoct	  mdoc_hash_find(const char *);
127 const char	 *mdoc_a2att(const char *);
128 const char	 *mdoc_a2lib(const char *);
129 const char	 *mdoc_a2st(const char *);
130 const char	 *mdoc_a2arch(const char *);
131 const char	 *mdoc_a2vol(const char *);
132 int		  mdoc_valid_pre(struct mdoc *, struct mdoc_node *);
133 int		  mdoc_valid_post(struct mdoc *);
134 enum margverr	  mdoc_argv(struct mdoc *, int, enum mdoct,
135 			struct mdoc_arg **, int *, char *);
136 void		  mdoc_argv_free(struct mdoc_arg *);
137 enum margserr	  mdoc_args(struct mdoc *, int,
138 			int *, char *, enum mdoct, char **);
139 enum margserr	  mdoc_zargs(struct mdoc *, int,
140 			int *, char *, char **);
141 int		  mdoc_macroend(struct mdoc *);
142 enum mdelim	  mdoc_isdelim(const char *);
143 
144 __END_DECLS
145 
146 #endif /*!LIBMDOC_H*/
147