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diff --git a/contrib/mdocml/roff.h b/contrib/mdocml/roff.h
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+/* $OpenBSD$ */
+/*
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2013, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+struct mdoc_arg;
+union mdoc_data;
+
+enum roff_macroset {
+ MACROSET_NONE = 0,
+ MACROSET_MDOC,
+ MACROSET_MAN
+};
+
+enum roff_sec {
+ SEC_NONE = 0,
+ SEC_NAME,
+ SEC_LIBRARY,
+ SEC_SYNOPSIS,
+ SEC_DESCRIPTION,
+ SEC_CONTEXT,
+ SEC_IMPLEMENTATION, /* IMPLEMENTATION NOTES */
+ SEC_RETURN_VALUES,
+ SEC_ENVIRONMENT,
+ SEC_FILES,
+ SEC_EXIT_STATUS,
+ SEC_EXAMPLES,
+ SEC_DIAGNOSTICS,
+ SEC_COMPATIBILITY,
+ SEC_ERRORS,
+ SEC_SEE_ALSO,
+ SEC_STANDARDS,
+ SEC_HISTORY,
+ SEC_AUTHORS,
+ SEC_CAVEATS,
+ SEC_BUGS,
+ SEC_SECURITY,
+ SEC_CUSTOM,
+ SEC__MAX
+};
+
+enum roff_type {
+ ROFFT_ROOT,
+ ROFFT_BLOCK,
+ ROFFT_HEAD,
+ ROFFT_BODY,
+ ROFFT_TAIL,
+ ROFFT_ELEM,
+ ROFFT_TEXT,
+ ROFFT_TBL,
+ ROFFT_EQN
+};
+
+enum roff_next {
+ ROFF_NEXT_SIBLING = 0,
+ ROFF_NEXT_CHILD
+};
+
+/*
+ * Indicates that a BODY's formatting has ended, but
+ * the scope is still open. Used for badly nested blocks.
+ */
+enum mdoc_endbody {
+ ENDBODY_NOT = 0,
+ ENDBODY_SPACE, /* Is broken: append a space. */
+ ENDBODY_NOSPACE /* Is broken: don't append a space. */
+};
+
+struct roff_node {
+ struct roff_node *parent; /* Parent AST node. */
+ struct roff_node *child; /* First child AST node. */
+ struct roff_node *last; /* Last child AST node. */
+ struct roff_node *next; /* Sibling AST node. */
+ struct roff_node *prev; /* Prior sibling AST node. */
+ struct roff_node *head; /* BLOCK */
+ struct roff_node *body; /* BLOCK/ENDBODY */
+ struct roff_node *tail; /* BLOCK */
+ struct mdoc_arg *args; /* BLOCK/ELEM */
+ union mdoc_data *norm; /* Normalized arguments. */
+ char *string; /* TEXT */
+ const struct tbl_span *span; /* TBL */
+ const struct eqn *eqn; /* EQN */
+ int line; /* Input file line number. */
+ int pos; /* Input file column number. */
+ int tok; /* Request or macro ID. */
+#define TOKEN_NONE (-1) /* No request or macro. */
+ int flags;
+#define MDOC_VALID (1 << 0) /* Has been validated. */
+#define MDOC_ENDED (1 << 1) /* Gone past body end mark. */
+#define MDOC_EOS (1 << 2) /* At sentence boundary. */
+#define MDOC_LINE (1 << 3) /* First macro/text on line. */
+#define MDOC_SYNPRETTY (1 << 4) /* SYNOPSIS-style formatting. */
+#define MDOC_BROKEN (1 << 5) /* Must validate parent when ending. */
+#define MDOC_DELIMO (1 << 6)
+#define MDOC_DELIMC (1 << 7)
+#define MAN_VALID MDOC_VALID
+#define MAN_EOS MDOC_EOS
+#define MAN_LINE MDOC_LINE
+ int prev_font; /* Before entering this node. */
+ int aux; /* Decoded node data, type-dependent. */
+ enum roff_type type; /* AST node type. */
+ enum roff_sec sec; /* Current named section. */
+ enum mdoc_endbody end; /* BODY */
+};
+
+struct roff_meta {
+ char *msec; /* Manual section, usually a digit. */
+ char *vol; /* Manual volume title. */
+ char *os; /* Operating system. */
+ char *arch; /* Machine architecture. */
+ char *title; /* Manual title, usually CAPS. */
+ char *name; /* Leading manual name. */
+ char *date; /* Normalized date. */
+ int hasbody; /* Document is not empty. */
+};
+
+struct roff_man {
+ struct roff_meta meta; /* Document meta-data. */
+ struct mparse *parse; /* Parse pointer. */
+ struct roff *roff; /* Roff parser state data. */
+ const char *defos; /* Default operating system. */
+ struct roff_node *first; /* The first node parsed. */
+ struct roff_node *last; /* The last node parsed. */
+ struct roff_node *last_es; /* The most recent Es node. */
+ int quick; /* Abort parse early. */
+ int flags; /* Parse flags. */
+#define MDOC_LITERAL (1 << 1) /* In a literal scope. */
+#define MDOC_PBODY (1 << 2) /* In the document body. */
+#define MDOC_NEWLINE (1 << 3) /* First macro/text in a line. */
+#define MDOC_PHRASE (1 << 4) /* In a Bl -column phrase. */
+#define MDOC_PHRASELIT (1 << 5) /* Literal within a phrase. */
+#define MDOC_FREECOL (1 << 6) /* `It' invocation should close. */
+#define MDOC_SYNOPSIS (1 << 7) /* SYNOPSIS-style formatting. */
+#define MDOC_KEEP (1 << 8) /* In a word keep. */
+#define MDOC_SMOFF (1 << 9) /* Spacing is off. */
+#define MDOC_NODELIMC (1 << 10) /* Disable closing delimiter handling. */
+#define MAN_ELINE (1 << 11) /* Next-line element scope. */
+#define MAN_BLINE (1 << 12) /* Next-line block scope. */
+#define MDOC_PHRASEQF (1 << 13) /* Quote first word encountered. */
+#define MDOC_PHRASEQL (1 << 14) /* Quote last word of this phrase. */
+#define MDOC_PHRASEQN (1 << 15) /* Quote first word of the next phrase. */
+#define MAN_LITERAL MDOC_LITERAL
+#define MAN_NEWLINE MDOC_NEWLINE
+ enum roff_macroset macroset; /* Kind of high-level macros used. */
+ enum roff_sec lastsec; /* Last section seen. */
+ enum roff_sec lastnamed; /* Last standard section seen. */
+ enum roff_next next; /* Where to put the next node. */
+};
+
+
+void deroff(char **, const struct roff_node *);
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