-enum eqn_boxt {
- EQN_TEXT, /* text (number, variable, whatever) */
- EQN_SUBEXPR, /* nested `eqn' subexpression */
- EQN_LIST, /* list (braces, etc.) */
- EQN_PILE, /* vertical pile */
- EQN_MATRIX /* pile of piles */
-};
-
-enum eqn_fontt {
- EQNFONT_NONE = 0,
- EQNFONT_ROMAN,
- EQNFONT_BOLD,
- EQNFONT_FAT,
- EQNFONT_ITALIC,
- EQNFONT__MAX
-};
-
-enum eqn_post {
- EQNPOS_NONE = 0,
- EQNPOS_SUP,
- EQNPOS_SUBSUP,
- EQNPOS_SUB,
- EQNPOS_TO,
- EQNPOS_FROM,
- EQNPOS_FROMTO,
- EQNPOS_OVER,
- EQNPOS_SQRT,
- 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 *prev; /* node sibling */
- struct eqn_box *parent; /* node sibling */
- char *text; /* text (or NULL) */
- char *left; /* fence left-hand */
- char *right; /* fence right-hand */
- char *top; /* expression over-symbol */
- char *bottom; /* expression under-symbol */
- size_t args; /* arguments in parent */
- size_t expectargs; /* max arguments in parent */
- enum eqn_post pos; /* position of next box */
- enum eqn_fontt font; /* font of box */
- enum eqn_pilet pile; /* equation piling */
-};
-
-/*
- * Parse options.
- */
-#define MPARSE_MDOC 1 /* assume -mdoc */
-#define MPARSE_MAN 2 /* assume -man */
-#define MPARSE_SO 4 /* honour .so requests */
-#define MPARSE_QUICK 8 /* abort the parse early */
-#define MPARSE_UTF8 16 /* accept UTF-8 input */
-#define MPARSE_LATIN1 32 /* accept ISO-LATIN-1 input */
-
-enum mandoc_os {
- MANDOC_OS_OTHER = 0,
- MANDOC_OS_NETBSD,
- MANDOC_OS_OPENBSD
-};
-
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