=================================================================== RCS file: /cvs/mandoc/mdoc.h,v retrieving revision 1.104 retrieving revision 1.105 diff -u -p -r1.104 -r1.105 --- mandoc/mdoc.h 2010/10/02 10:14:37 1.104 +++ mandoc/mdoc.h 2010/10/04 07:01:02 1.105 @@ -1,4 +1,4 @@ -/* $Id: mdoc.h,v 1.104 2010/10/02 10:14:37 kristaps Exp $ */ +/* $Id: mdoc.h,v 1.105 2010/10/04 07:01:02 kristaps Exp $ */ /* * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons * @@ -17,24 +17,401 @@ #ifndef MDOC_H #define MDOC_H +/* + * What follows is a list of ALL possible macros. + */ +enum mdoct { + MDOC_Ap = 0, + MDOC_Dd, + MDOC_Dt, + MDOC_Os, + MDOC_Sh, + MDOC_Ss, + MDOC_Pp, + MDOC_D1, + MDOC_Dl, + MDOC_Bd, + MDOC_Ed, + MDOC_Bl, + MDOC_El, + MDOC_It, + MDOC_Ad, + MDOC_An, + MDOC_Ar, + MDOC_Cd, + MDOC_Cm, + MDOC_Dv, + MDOC_Er, + MDOC_Ev, + MDOC_Ex, + MDOC_Fa, + MDOC_Fd, + MDOC_Fl, + MDOC_Fn, + MDOC_Ft, + MDOC_Ic, + MDOC_In, + MDOC_Li, + MDOC_Nd, + MDOC_Nm, + MDOC_Op, + MDOC_Ot, + MDOC_Pa, + MDOC_Rv, + MDOC_St, + MDOC_Va, + MDOC_Vt, + MDOC_Xr, + MDOC__A, + MDOC__B, + MDOC__D, + MDOC__I, + MDOC__J, + MDOC__N, + MDOC__O, + MDOC__P, + MDOC__R, + MDOC__T, + MDOC__V, + MDOC_Ac, + MDOC_Ao, + MDOC_Aq, + MDOC_At, + MDOC_Bc, + MDOC_Bf, + MDOC_Bo, + MDOC_Bq, + MDOC_Bsx, + MDOC_Bx, + MDOC_Db, + MDOC_Dc, + MDOC_Do, + MDOC_Dq, + MDOC_Ec, + MDOC_Ef, + MDOC_Em, + MDOC_Eo, + MDOC_Fx, + MDOC_Ms, + MDOC_No, + MDOC_Ns, + MDOC_Nx, + MDOC_Ox, + MDOC_Pc, + MDOC_Pf, + MDOC_Po, + MDOC_Pq, + MDOC_Qc, + MDOC_Ql, + MDOC_Qo, + MDOC_Qq, + MDOC_Re, + MDOC_Rs, + MDOC_Sc, + MDOC_So, + MDOC_Sq, + MDOC_Sm, + MDOC_Sx, + MDOC_Sy, + MDOC_Tn, + MDOC_Ux, + MDOC_Xc, + MDOC_Xo, + MDOC_Fo, + MDOC_Fc, + MDOC_Oo, + MDOC_Oc, + MDOC_Bk, + MDOC_Ek, + MDOC_Bt, + MDOC_Hf, + MDOC_Fr, + MDOC_Ud, + MDOC_Lb, + MDOC_Lp, + MDOC_Lk, + MDOC_Mt, + MDOC_Brq, + MDOC_Bro, + MDOC_Brc, + MDOC__C, + MDOC_Es, + MDOC_En, + MDOC_Dx, + MDOC__Q, + MDOC_br, + MDOC_sp, + MDOC__U, + MDOC_Ta, + MDOC_MAX +}; + +/* + * What follows is a list of ALL possible macro arguments. + */ +enum mdocargt { + MDOC_Split, + MDOC_Nosplit, + MDOC_Ragged, + MDOC_Unfilled, + MDOC_Literal, + MDOC_File, + MDOC_Offset, + MDOC_Bullet, + MDOC_Dash, + MDOC_Hyphen, + MDOC_Item, + MDOC_Enum, + MDOC_Tag, + MDOC_Diag, + MDOC_Hang, + MDOC_Ohang, + MDOC_Inset, + MDOC_Column, + MDOC_Width, + MDOC_Compact, + MDOC_Std, + MDOC_Filled, + MDOC_Words, + MDOC_Emphasis, + MDOC_Symbolic, + MDOC_Nested, + MDOC_Centred, + MDOC_ARG_MAX +}; + +/* + * Type of a syntax node. + */ +enum mdoc_type { + MDOC_TEXT, + MDOC_ELEM, + MDOC_HEAD, + MDOC_TAIL, + MDOC_BODY, + MDOC_BLOCK, + MDOC_ROOT +}; + +/* + * Section (named/unnamed) of `Sh'. Note that these appear in the + * conventional order imposed by mdoc.7. + */ +enum mdoc_sec { + SEC_NONE = 0, /* No section, yet. */ + SEC_NAME, + SEC_LIBRARY, + SEC_SYNOPSIS, + SEC_DESCRIPTION, + SEC_IMPLEMENTATION, + 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, /* User-defined. */ + SEC__MAX +}; + +/* + * Information from prologue. + */ +struct mdoc_meta { + char *msec; /* `Dt' section (1, 3p, etc.) */ + char *vol; /* `Dt' volume (implied) */ + char *arch; /* `Dt' arch (i386, etc.) */ + time_t date; /* `Dd' normalised date */ + char *title; /* `Dt' title (FOO, etc.) */ + char *os; /* `Os' system (OpenBSD, etc.) */ + char *name; /* leading `Nm' name */ +}; + +/* + * An argument to a macro (multiple values = `-column xxx yyy'). + */ +struct mdoc_argv { + enum mdocargt arg; /* type of argument */ + int line; + int pos; + size_t sz; /* elements in "value" */ + char **value; /* argument strings */ +}; + /* - * This library implements a validating scanner/parser for ``mdoc'' roff - * macro documents, a.k.a. BSD manual page documents. The mdoc.c file - * drives the parser, while macro.c describes the macro ontologies. - * validate.c pre- and post-validates parsed macros, and action.c - * performs actions on parsed and validated macros. + * Reference-counted macro arguments. These are refcounted because + * blocks have multiple instances of the same arguments spread across + * the HEAD, BODY, TAIL, and BLOCK node types. */ +struct mdoc_arg { + size_t argc; + struct mdoc_argv *argv; + unsigned int refcnt; +}; -/* See mdoc.3 for documentation. */ +/* + * Indicates that a BODY's formatting has ended, but the scope is still + * open. Used for syntax-broken blocks. + */ +enum mdoc_endbody { + ENDBODY_NOT = 0, + ENDBODY_SPACE, /* is broken: append a space */ + ENDBODY_NOSPACE /* is broken: don't append a space */ +}; +/* + * Normalised `Bl' list type. + */ +enum mdoc_list { + LIST__NONE = 0, + LIST_bullet, + LIST_column, + LIST_dash, + LIST_diag, + LIST_enum, + LIST_hang, + LIST_hyphen, + LIST_inset, + LIST_item, + LIST_ohang, + LIST_tag +}; + +/* + * Normalised `Bd' display type. + */ +enum mdoc_disp { + DISP__NONE = 0, + DISP_centred, + DISP_ragged, + DISP_unfilled, + DISP_filled, + DISP_literal +}; + +/* + * Normalised `An' splitting argument. + */ +enum mdoc_auth { + AUTH__NONE = 0, + AUTH_split, + AUTH_nosplit +}; + +/* + * Normalised `Bf' font type. + */ +enum mdoc_font { + FONT__NONE = 0, + FONT_Em, + FONT_Li, + FONT_Sy +}; + +/* + * Normalised arguments for `Bd'. + */ +struct mdoc_bd { + const char *offs; /* -offset */ + enum mdoc_disp type; /* -ragged, etc. */ + int comp; /* -compact */ +}; + +/* + * Normalised arguments for `Bl'. + */ +struct mdoc_bl { + const char *width; /* -width */ + const char *offs; /* -offset */ + enum mdoc_list type; /* -tag, -enum, etc. */ + int comp; /* -compact */ + size_t ncols; /* -column arg count */ + const char **cols; /* -column val ptr */ +}; + +/* + * Normalised arguments for `Bf'. + */ +struct mdoc_bf { + enum mdoc_font font; /* font */ +}; + +/* + * Normalised arguments for `An'. + */ +struct mdoc_an { + enum mdoc_auth auth; /* -split, etc. */ +}; + +/* + * Consists of normalised node arguments. These should be used instead + * of iterating through the mdoc_arg pointers of a node: defaults are + * provided, etc. + */ +union mdoc_data { + struct mdoc_an An; + struct mdoc_bd *Bd; + struct mdoc_bf *Bf; + struct mdoc_bl *Bl; +}; + +/* + * Single node in tree-linked AST. + */ +struct mdoc_node { + struct mdoc_node *parent; /* parent AST node */ + struct mdoc_node *child; /* first child AST node */ + struct mdoc_node *next; /* sibling AST node */ + struct mdoc_node *prev; /* prior sibling AST node */ + int nchild; /* number children */ + int line; /* parse line */ + int pos; /* parse column */ + enum mdoct tok; /* tok or MDOC__MAX if none */ + int flags; +#define MDOC_VALID (1 << 0) /* has been validated */ +#define MDOC_ACTED (1 << 1) /* has been acted upon */ +#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_ENDED (1 << 5) /* rendering has been ended */ + enum mdoc_type type; /* AST node type */ + enum mdoc_sec sec; /* current named section */ + /* FIXME: these can be union'd to shave a few bytes. */ + struct mdoc_arg *args; /* BLOCK/ELEM */ + struct mdoc_node *pending; /* BLOCK */ + struct mdoc_node *head; /* BLOCK */ + struct mdoc_node *body; /* BLOCK */ + struct mdoc_node *tail; /* BLOCK */ + char *string; /* TEXT */ + enum mdoc_endbody end; /* BODY */ + union mdoc_data data; +}; + +/* + * Names of macros. Index is enum mdoct. Indexing into this returns + * the normalised name, e.g., mdoc_macronames[MDOC_Sh] -> "Sh". + */ extern const char *const *mdoc_macronames; + +/* + * Names of macro args. Index is enum mdocargt. Indexing into this + * returns the normalised name, e.g., mdoc_argnames[MDOC_File] -> + * "file". + */ extern const char *const *mdoc_argnames; __BEGIN_DECLS struct mdoc; - -/* See mdoc.3 for documentation. */ void mdoc_free(struct mdoc *); struct mdoc *mdoc_alloc(struct regset *, void *, mandocmsg);