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Diff for /mandoc/mandoc.h between version 1.4 and 1.113

version 1.4, 2010/05/16 22:28:33 version 1.113, 2014/01/02 16:29:55
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 /*      $Id$ */  /*      $Id$ */
 /*  /*
  * Copyright (c) 2010 Kristaps Dzonsons <kristaps@bsd.lv>   * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
    * Copyright (c) 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
  *   *
  * Permission to use, copy, modify, and distribute this software for any   * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above   * purpose with or without fee is hereby granted, provided that the above
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 #ifndef MANDOC_H  #ifndef MANDOC_H
 #define MANDOC_H  #define MANDOC_H
   
 __BEGIN_DECLS  #define ASCII_NBRSP      31  /* non-breaking space */
   #define ASCII_HYPH       30  /* breakable hyphen */
   
   /*
    * Status level.  This refers to both internal status (i.e., whilst
    * running, when warnings/errors are reported) and an indicator of a
    * threshold of when to halt (when said internal state exceeds the
    * threshold).
    */
   enum    mandoclevel {
           MANDOCLEVEL_OK = 0,
           MANDOCLEVEL_RESERVED,
           MANDOCLEVEL_WARNING, /* warnings: syntax, whitespace, etc. */
           MANDOCLEVEL_ERROR, /* input has been thrown away */
           MANDOCLEVEL_FATAL, /* input is borked */
           MANDOCLEVEL_BADARG, /* bad argument in invocation */
           MANDOCLEVEL_SYSERR, /* system error */
           MANDOCLEVEL_MAX
   };
   
   /*
    * All possible things that can go wrong within a parse, be it libroff,
    * libmdoc, or libman.
    */
 enum    mandocerr {  enum    mandocerr {
         MANDOCERR_OK,          MANDOCERR_OK,
   
           MANDOCERR_WARNING, /* ===== start of warnings ===== */
   
           /* related to the prologue */
           MANDOCERR_NOTITLE, /* no title in document */
           MANDOCERR_UPPERCASE, /* document title should be all caps */
           MANDOCERR_BADMSEC, /* unknown manual section */
           MANDOCERR_BADVOLARCH, /* unknown manual volume or arch */
           MANDOCERR_NODATE, /* date missing, using today's date */
           MANDOCERR_BADDATE, /* cannot parse date, using it verbatim */
           MANDOCERR_PROLOGOOO, /* prologue macros out of order */
           MANDOCERR_PROLOGREP, /* duplicate prologue macro */
           MANDOCERR_BADPROLOG, /* macro not allowed in prologue */
           MANDOCERR_BADBODY, /* macro not allowed in body */
   
           /* related to document structure */
           MANDOCERR_SO, /* .so is fragile, better use ln(1) */
           MANDOCERR_NAMESECFIRST, /* NAME section must come first */
           MANDOCERR_BADNAMESEC, /* bad NAME section contents */
           MANDOCERR_SECOOO, /* sections out of conventional order */
           MANDOCERR_SECREP, /* duplicate section name */
           MANDOCERR_SECMSEC, /* section header suited to sections ... */
   
           /* related to macros and nesting */
           MANDOCERR_MACROOBS, /* skipping obsolete macro */
           MANDOCERR_IGNPAR, /* skipping paragraph macro */
           MANDOCERR_MOVEPAR, /* moving paragraph macro out of list */
           MANDOCERR_IGNNS, /* skipping no-space macro */
           MANDOCERR_SCOPENEST, /* blocks badly nested */
           MANDOCERR_CHILD, /* child violates parent syntax */
           MANDOCERR_NESTEDDISP, /* nested displays are not portable */
           MANDOCERR_SCOPEREP, /* already in literal mode */
           MANDOCERR_LINESCOPE, /* line scope broken */
   
           /* related to missing macro arguments */
           MANDOCERR_MACROEMPTY, /* skipping empty macro */
           MANDOCERR_ARGCWARN, /* argument count wrong */
           MANDOCERR_DISPTYPE, /* missing display type */
           MANDOCERR_LISTFIRST, /* list type must come first */
           MANDOCERR_NOWIDTHARG, /* tag lists require a width argument */
           MANDOCERR_FONTTYPE, /* missing font type */
           MANDOCERR_WNOSCOPE, /* skipping end of block that is not open */
   
           /* related to bad macro arguments */
           MANDOCERR_IGNARGV, /* skipping argument */
           MANDOCERR_ARGVREP, /* duplicate argument */
           MANDOCERR_DISPREP, /* duplicate display type */
           MANDOCERR_LISTREP, /* duplicate list type */
           MANDOCERR_BADATT, /* unknown AT&T UNIX version */
           MANDOCERR_BADBOOL, /* bad Boolean value */
           MANDOCERR_BADFONT, /* unknown font */
           MANDOCERR_BADSTANDARD, /* unknown standard specifier */
           MANDOCERR_BADWIDTH, /* bad width argument */
   
           /* related to plain text */
           MANDOCERR_NOBLANKLN, /* blank line in non-literal context */
           MANDOCERR_BADTAB, /* tab in non-literal context */
           MANDOCERR_EOLNSPACE, /* end of line whitespace */
           MANDOCERR_BADCOMMENT, /* bad comment style */
           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_TBLLAYOUT, /* bad table layout */
           MANDOCERR_TBLNOLAYOUT, /* no table layout cells specified */
           MANDOCERR_TBLNODATA, /* no table data cells specified */
           MANDOCERR_TBLIGNDATA, /* ignore data in cell */
           MANDOCERR_TBLBLOCK, /* data block still open */
           MANDOCERR_TBLEXTRADAT, /* ignoring extra data cells */
   
           MANDOCERR_ROFFLOOP, /* input stack limit exceeded, infinite loop? */
           MANDOCERR_BADCHAR, /* skipping bad character */
           MANDOCERR_NAMESC, /* escaped character not allowed in a name */
           MANDOCERR_NONAME, /* manual name not yet set */
           MANDOCERR_NOTEXT, /* skipping text before the first section header */
           MANDOCERR_MACRO, /* skipping unknown macro */
           MANDOCERR_REQUEST, /* NOT IMPLEMENTED: skipping request */
           MANDOCERR_ARGCOUNT, /* argument count wrong */
           MANDOCERR_STRAYTA, /* skipping column outside column list */
           MANDOCERR_NOSCOPE, /* skipping end of block that is not open */
           MANDOCERR_SCOPEBROKEN, /* missing end of block */
         MANDOCERR_SCOPEEXIT, /* scope open on exit */          MANDOCERR_SCOPEEXIT, /* scope open on exit */
 #define MANDOCERR_WARNING       MANDOCERR_SCOPEEXIT          MANDOCERR_UNAME, /* uname(3) system call failed */
           /* FIXME: merge following with MANDOCERR_ARGCOUNT */
           MANDOCERR_NOARGS, /* macro requires line argument(s) */
           MANDOCERR_NOBODY, /* macro requires body argument(s) */
           MANDOCERR_NOARGV, /* macro requires argument(s) */
           MANDOCERR_NUMERIC, /* request requires a numeric argument */
           MANDOCERR_LISTTYPE, /* missing list type */
           MANDOCERR_ARGSLOST, /* line argument(s) will be lost */
           MANDOCERR_BODYLOST, /* body argument(s) will be lost */
   
         MANDOCERR_NOSCOPE, /* request scope close w/none open */          MANDOCERR_FATAL, /* ===== start of fatal errors ===== */
         MANDOCERR_NOARGS, /* macro requires argument(s) */  
         MANDOCERR_ARGSLOST, /* line arguments will be lost */  
 #define MANDOCERR_ERROR         MANDOCERR_ARGSLOST  
   
         MANDOCERR_MEM, /* memory exhausted */          MANDOCERR_TOOLARGE, /* input too large */
 #define MANDOCERR_FATAL         MANDOCERR_MEM          MANDOCERR_NOTMANUAL, /* manual isn't really a manual */
           MANDOCERR_COLUMNS, /* column syntax is inconsistent */
           MANDOCERR_BADDISP, /* NOT IMPLEMENTED: .Bd -file */
           MANDOCERR_SYNTARGVCOUNT, /* argument count wrong, violates syntax */
           MANDOCERR_SYNTCHILD, /* child violates parent syntax */
           MANDOCERR_SYNTARGCOUNT, /* argument count wrong, violates syntax */
           MANDOCERR_SOPATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */
           MANDOCERR_NODOCBODY, /* no document body */
           MANDOCERR_NODOCPROLOG, /* no document prologue */
           MANDOCERR_MEM, /* static buffer exhausted */
   
           /* ===== system errors ===== */
   
           MANDOCERR_SYSOPEN, /* cannot open file */
           MANDOCERR_SYSSTAT, /* cannot stat file */
           MANDOCERR_SYSREAD, /* cannot read file */
   
         MANDOCERR_MAX          MANDOCERR_MAX
 };  };
   
 typedef int     (*mandocmsg)(enum mandocerr,  struct  tbl_opts {
                         void *, int, int, const char *);          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_opts  *opts;
           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_FONTBI, /* bold 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);
   
 __END_DECLS  __END_DECLS
   
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