+struct tbl {
+ char tab; /* cell-separator */
+ char decimal; /* decimal point */
+ int linesize;
+ int opts;
+#define TBL_OPT_CENTRE (1 << 0)
+#define TBL_OPT_EXPAND (1 << 1)
+#define TBL_OPT_BOX (1 << 2)
+#define TBL_OPT_DBOX (1 << 3)
+#define TBL_OPT_ALLBOX (1 << 4)
+#define TBL_OPT_NOKEEP (1 << 5)
+#define TBL_OPT_NOSPACE (1 << 6)
+ int cols; /* number of columns */
+};
+
+/*
+ * The head of a table specifies all of its columns. When formatting a
+ * tbl_span, iterate over these and plug in data from the tbl_span when
+ * appropriate, using tbl_cell as a guide to placement.
+ */
+struct tbl_head {
+ int ident; /* 0 <= unique id < cols */
+ int vert; /* width of preceding vertical line */
+ struct tbl_head *next;
+ struct tbl_head *prev;
+};
+
+enum tbl_cellt {
+ TBL_CELL_CENTRE, /* c, C */
+ TBL_CELL_RIGHT, /* r, R */
+ TBL_CELL_LEFT, /* l, L */
+ TBL_CELL_NUMBER, /* n, N */
+ TBL_CELL_SPAN, /* s, S */
+ TBL_CELL_LONG, /* a, A */
+ TBL_CELL_DOWN, /* ^ */
+ TBL_CELL_HORIZ, /* _, - */
+ TBL_CELL_DHORIZ, /* = */
+ TBL_CELL_MAX
+};
+
+/*
+ * A cell in a layout row.
+ */
+struct tbl_cell {
+ struct tbl_cell *next;
+ int vert; /* width of preceding vertical line */
+ enum tbl_cellt pos;
+ size_t spacing;
+ int flags;
+#define TBL_CELL_TALIGN (1 << 0) /* t, T */
+#define TBL_CELL_BALIGN (1 << 1) /* d, D */
+#define TBL_CELL_BOLD (1 << 2) /* fB, B, b */
+#define TBL_CELL_ITALIC (1 << 3) /* fI, I, i */
+#define TBL_CELL_EQUAL (1 << 4) /* e, E */
+#define TBL_CELL_UP (1 << 5) /* u, U */
+#define TBL_CELL_WIGN (1 << 6) /* z, Z */
+ struct tbl_head *head;
+};
+
+/*
+ * A layout row.
+ */
+struct tbl_row {
+ struct tbl_row *next;
+ struct tbl_cell *first;
+ struct tbl_cell *last;
+};
+
+enum tbl_datt {
+ TBL_DATA_NONE, /* has no data */
+ TBL_DATA_DATA, /* consists of data/string */
+ TBL_DATA_HORIZ, /* horizontal line */
+ TBL_DATA_DHORIZ, /* double-horizontal line */
+ TBL_DATA_NHORIZ, /* squeezed horizontal line */
+ TBL_DATA_NDHORIZ /* squeezed double-horizontal line */
+};
+
+/*
+ * A cell within a row of data. The "string" field contains the actual
+ * string value that's in the cell. The rest is layout.
+ */
+struct tbl_dat {
+ struct tbl_cell *layout; /* layout cell */
+ int spans; /* how many spans follow */
+ struct tbl_dat *next;
+ char *string; /* data (NULL if not TBL_DATA_DATA) */
+ enum tbl_datt pos;
+};
+
+enum tbl_spant {
+ TBL_SPAN_DATA, /* span consists of data */
+ TBL_SPAN_HORIZ, /* span is horizontal line */
+ TBL_SPAN_DHORIZ /* span is double horizontal line */
+};
+
+/*
+ * A row of data in a table.
+ */
+struct tbl_span {
+ struct tbl *tbl;
+ struct tbl_head *head;
+ struct tbl_row *layout; /* layout row */
+ struct tbl_dat *first;
+ struct tbl_dat *last;
+ int line; /* parse line */
+ int flags;
+#define TBL_SPAN_FIRST (1 << 0)
+#define TBL_SPAN_LAST (1 << 1)
+ enum tbl_spant pos;
+ struct tbl_span *next;
+};
+
+enum eqn_boxt {
+ EQN_ROOT, /* root of parse tree */
+ EQN_TEXT, /* text (number, variable, whatever) */
+ EQN_SUBEXPR, /* nested `eqn' subexpression */
+ EQN_LIST, /* subexpressions list */
+ EQN_MATRIX /* matrix subexpression */
+};
+
+enum eqn_markt {
+ EQNMARK_NONE = 0,
+ EQNMARK_DOT,
+ EQNMARK_DOTDOT,
+ EQNMARK_HAT,
+ EQNMARK_TILDE,
+ EQNMARK_VEC,
+ EQNMARK_DYAD,
+ EQNMARK_BAR,
+ EQNMARK_UNDER,
+ EQNMARK__MAX
+};
+
+enum eqn_fontt {
+ EQNFONT_NONE = 0,
+ EQNFONT_ROMAN,
+ EQNFONT_BOLD,
+ EQNFONT_FAT,
+ EQNFONT_ITALIC,
+ EQNFONT__MAX
+};
+
+enum eqn_post {
+ EQNPOS_NONE = 0,
+ EQNPOS_OVER,
+ EQNPOS_SUP,
+ EQNPOS_SUB,
+ EQNPOS_TO,
+ EQNPOS_FROM,
+ EQNPOS__MAX
+};
+
+enum eqn_pilet {
+ EQNPILE_NONE = 0,
+ EQNPILE_PILE,
+ EQNPILE_CPILE,
+ EQNPILE_RPILE,
+ EQNPILE_LPILE,
+ EQNPILE_COL,
+ EQNPILE_CCOL,
+ EQNPILE_RCOL,
+ EQNPILE_LCOL,
+ EQNPILE__MAX
+};
+
+ /*
+ * A "box" is a parsed mathematical expression as defined by the eqn.7
+ * grammar.
+ */
+struct eqn_box {
+ int size; /* font size of expression */
+#define EQN_DEFSIZE INT_MIN
+ enum eqn_boxt type; /* type of node */
+ struct eqn_box *first; /* first child node */
+ struct eqn_box *last; /* last child node */
+ struct eqn_box *next; /* node sibling */
+ struct eqn_box *parent; /* node sibling */
+ char *text; /* text (or NULL) */
+ char *left;
+ char *right;
+ enum eqn_post pos; /* position of next box */
+ enum eqn_markt mark; /* a mark about the box */
+ enum eqn_fontt font; /* font of box */
+ enum eqn_pilet pile; /* equation piling */
+};
+
+/*
+ * An equation consists of a tree of expressions starting at a given
+ * line and position.
+ */
+struct eqn {
+ char *name; /* identifier (or NULL) */
+ struct eqn_box *root; /* root mathematical expression */
+ int ln; /* invocation line */
+ int pos; /* invocation position */
+};
+
+/*
+ * The type of parse sequence. This value is usually passed via the
+ * mandoc(1) command line of -man and -mdoc. It's almost exclusively
+ * -mandoc but the others have been retained for compatibility.
+ */
+enum mparset {
+ MPARSE_AUTO, /* magically determine the document type */
+ MPARSE_MDOC, /* assume -mdoc */
+ MPARSE_MAN /* assume -man */
+};
+
+enum mandoc_esc {
+ ESCAPE_ERROR = 0, /* bail! unparsable escape */
+ ESCAPE_IGNORE, /* escape to be ignored */
+ ESCAPE_SPECIAL, /* a regular special character */
+ ESCAPE_FONT, /* a generic font mode */
+ ESCAPE_FONTBOLD, /* bold font mode */
+ ESCAPE_FONTITALIC, /* italic font mode */
+ ESCAPE_FONTROMAN, /* roman font mode */
+ ESCAPE_FONTPREV, /* previous font mode */
+ ESCAPE_NUMBERED, /* a numbered glyph */
+ ESCAPE_UNICODE, /* a unicode codepoint */
+ ESCAPE_NOSPACE, /* suppress space if the last on a line */
+ ESCAPE_SKIPCHAR /* skip the next character */
+};
+
+typedef void (*mandocmsg)(enum mandocerr, enum mandoclevel,
+ const char *, int, int, const char *);
+
+struct mparse;
+struct mchars;
+struct mdoc;
+struct man;
+
+__BEGIN_DECLS
+
+void *mandoc_calloc(size_t, size_t);
+enum mandoc_esc mandoc_escape(const char **, const char **, int *);
+void *mandoc_malloc(size_t);
+void *mandoc_realloc(void *, size_t);
+char *mandoc_strdup(const char *);
+char *mandoc_strndup(const char *, size_t);
+struct mchars *mchars_alloc(void);
+void mchars_free(struct mchars *);
+char mchars_num2char(const char *, size_t);
+int mchars_num2uc(const char *, size_t);
+int mchars_spec2cp(const struct mchars *,
+ const char *, size_t);
+const char *mchars_spec2str(const struct mchars *,
+ const char *, size_t, size_t *);
+struct mparse *mparse_alloc(enum mparset, enum mandoclevel,
+ mandocmsg, void *, char *);
+void mparse_free(struct mparse *);
+void mparse_keep(struct mparse *);
+enum mandoclevel mparse_readfd(struct mparse *, int, const char *);
+enum mandoclevel mparse_readmem(struct mparse *, const void *, size_t,
+ const char *);
+void mparse_reset(struct mparse *);
+void mparse_result(struct mparse *,
+ struct mdoc **, struct man **);
+const char *mparse_getkeep(const struct mparse *);
+const char *mparse_strerror(enum mandocerr);
+const char *mparse_strlevel(enum mandoclevel);