-/* $Id: mandoc.h,v 1.77 2011/05/24 21:31:23 kristaps Exp $ */
+/* $Id: mandoc.h,v 1.99 2012/02/16 20:51:31 joerg Exp $ */
/*
* Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
*
MANDOCERR_BADESCAPE, /* unknown escape sequence */
MANDOCERR_BADQUOTE, /* unterminated quoted string */
+ /* related to equations */
+ MANDOCERR_EQNQUOTE, /* unexpected literal in equation */
+
MANDOCERR_ERROR, /* ===== start of errors ===== */
+ /* related to equations */
+ MANDOCERR_EQNNSCOPE, /* unexpected equation scope closure*/
+ MANDOCERR_EQNSCOPE, /* equation scope open on exit */
+ MANDOCERR_EQNBADSCOPE, /* overlapping equation scopes */
+ MANDOCERR_EQNEOF, /* unexpected end of equation */
+ MANDOCERR_EQNSYNT, /* equation syntax error */
+
/* related to tables */
MANDOCERR_TBL, /* bad table syntax */
MANDOCERR_TBLOPT, /* bad table option */
MANDOCERR_NOTMANUAL, /* manual isn't really a manual */
MANDOCERR_COLUMNS, /* column syntax is inconsistent */
MANDOCERR_BADDISP, /* NOT IMPLEMENTED: .Bd -file */
- MANDOCERR_SYNTLINESCOPE, /* line scope broken, syntax violated */
MANDOCERR_SYNTARGVCOUNT, /* argument count wrong, violates syntax */
MANDOCERR_SYNTCHILD, /* child violates parent syntax */
MANDOCERR_SYNTARGCOUNT, /* argument count wrong, violates syntax */
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 {
- size_t sz;
- char *data;
- int line; /* invocation line */
+ char *name; /* identifier (or NULL) */
+ struct eqn_box *root; /* root mathematical expression */
+ int ln; /* invocation line */
int pos; /* invocation position */
};
__BEGIN_DECLS
-void mparse_free(struct mparse *);
-void mparse_reset(struct mparse *);
-struct mparse *mparse_alloc(enum mparset,
- enum mandoclevel, mandocmsg, void *);
-enum mandoclevel mparse_readfd(struct mparse *, int, const char *);
-void mparse_result(struct mparse *, struct mdoc **, struct man **);
-const char *mparse_strerror(enum mandocerr);
-const char *mparse_strlevel(enum mandoclevel);
-
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);
-
-enum mandoc_esc mandoc_escape(const char **, const char **, int *);
-
+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);
-const char *mchars_spec2str(struct mchars *, const char *, size_t, size_t *);
-int mchars_spec2cp(struct mchars *, const char *, size_t);
-void mchars_free(struct mchars *);
-
+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 *);
+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);
__END_DECLS
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