=================================================================== RCS file: /cvs/mandoc/mandoc.h,v retrieving revision 1.7 retrieving revision 1.121 diff -u -p -r1.7 -r1.121 --- mandoc/mandoc.h 2010/05/25 12:37:20 1.7 +++ mandoc/mandoc.h 2014/06/20 17:24:00 1.121 @@ -1,6 +1,7 @@ -/* $Id: mandoc.h,v 1.7 2010/05/25 12:37:20 kristaps Exp $ */ +/* $Id: mandoc.h,v 1.121 2014/06/20 17:24:00 schwarze Exp $ */ /* - * Copyright (c) 2010 Kristaps Dzonsons + * Copyright (c) 2010, 2011 Kristaps Dzonsons + * Copyright (c) 2010-2014 Ingo Schwarze * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -19,90 +20,413 @@ #define ASCII_NBRSP 31 /* non-breaking space */ #define ASCII_HYPH 30 /* breakable hyphen */ +#define ASCII_BREAK 29 /* breakable zero-width space */ +/* + * 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 +}; -__BEGIN_DECLS - +/* + * All possible things that can go wrong within a parse, be it libroff, + * libmdoc, or libman. + */ enum mandocerr { MANDOCERR_OK, - MANDOCERR_UPPERCASE, /* text should be uppercase */ - MANDOCERR_SECOOO, /* sections out of conentional order */ - MANDOCERR_SECREP, /* section name repeats */ - MANDOCERR_PROLOGOOO, /* out of order prologue */ - MANDOCERR_PROLOGREP, /* repeated prologue entry */ + + MANDOCERR_WARNING, /* ===== start of warnings ===== */ + + /* related to the prologue */ + MANDOCERR_TH_MISSING, /* no TH macro in document */ + MANDOCERR_TITLE_CASE, /* document title should be all caps */ + MANDOCERR_MSEC_BAD, /* unknown manual section */ + MANDOCERR_ARCH_BAD, /* unknown manual volume or arch */ + MANDOCERR_DATE_MISSING, /* date missing, using today's date */ + MANDOCERR_DATE_BAD, /* cannot parse date, using it verbatim */ + MANDOCERR_PROLOG_ORDER, /* prologue macros out of order */ + MANDOCERR_PROLOG_REP, /* duplicate prologue macro */ + MANDOCERR_PROLOG_BAD, /* macro not allowed in prologue */ + MANDOCERR_PROLOG_ONLY, /* 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_COLUMNS, /* column syntax is inconsistent */ - MANDOCERR_BADSTANDARD, /* bad standard */ - MANDOCERR_BADLIB, /* bad library */ - MANDOCERR_BADESCAPE, /* bad escape sequence */ - MANDOCERR_BADQUOTE, /* unterminated quoted string */ - MANDOCERR_NOWIDTHARG, /* argument requires the width argument */ - MANDOCERR_WIDTHARG, /* superfluous width argument */ - MANDOCERR_BADDATE, /* bad date argument */ + 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 */ - MANDOCERR_BADMSEC, /* unknown manual sction */ - MANDOCERR_SECMSEC, /* section not in conventional manual section */ + + /* 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_SCOPEEXIT, /* scope open on exit */ -#define MANDOCERR_WARNING MANDOCERR_SCOPEEXIT + MANDOCERR_BADCOMMENT, /* bad comment style */ + MANDOCERR_BADESCAPE, /* unknown escape sequence */ + MANDOCERR_BADQUOTE, /* unterminated quoted string */ - MANDOCERR_NAMESECFIRST, /* NAME section must come first */ - MANDOCERR_BADBOOL, /* bad Boolean value */ - MANDOCERR_CHILD, /* child violates parent syntax */ - MANDOCERR_BADATT, /* bad AT&T symbol */ - MANDOCERR_LISTREP, /* list type repeated */ - MANDOCERR_DISPREP, /* display type repeated */ - MANDOCERR_ARGVREP, /* argument repeated */ + /* 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_MACROOBS, /* obsolete macro ignored */ - MANDOCERR_MACROEMPTY, /* empty macro ignored */ - MANDOCERR_BADBODY, /* macro not allowed in body */ - MANDOCERR_BADPROLOG, /* macro not allowed in prologue */ - MANDOCERR_BADCHAR, /* bad character */ - MANDOCERR_BADNAMESEC, /* bad NAME section contents */ - MANDOCERR_NOBLANKLN, /* no blank lines */ - MANDOCERR_NOTEXT, /* no text in this context */ - MANDOCERR_BADCOMMENT, /* bad comment style */ - MANDOCERR_MACRO, /* unknown macro will be lost */ - MANDOCERR_LINESCOPE, /* line scope broken */ - MANDOCERR_SCOPE, /* scope broken */ + 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_NOSCOPE, /* request scope close w/none open */ - MANDOCERR_SCOPEREP, /* scope already open */ + 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_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_NOTITLE, /* no title in document */ + 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 */ -#define MANDOCERR_ERROR MANDOCERR_BODYLOST - /* FIXME: this should be a MANDOCERR_ERROR */ - MANDOCERR_FONTTYPE, /* missing font type */ - /* FIXME: this should be a MANDOCERR_ERROR */ - MANDOCERR_DISPTYPE, /* missing display type */ - /* FIXME: this should be a MANDOCERR_ERROR */ - MANDOCERR_LISTTYPE, /* missing list type */ - /* FIXME: this should be a MANDOCERR_ERROR */ - MANDOCERR_NESTEDDISP, /* displays may not be nested */ - MANDOCERR_SYNTNOSCOPE, /* request scope close w/none open */ - MANDOCERR_SYNTSCOPE, /* scope broken, syntax violated */ - MANDOCERR_SYNTLINESCOPE, /* line scope broken, syntax violated */ + MANDOCERR_FATAL, /* ===== start of fatal errors ===== */ + + MANDOCERR_TOOLARGE, /* input too large */ + 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_UTSNAME, /* utsname() system call failed */ - MANDOCERR_MEM, /* memory exhausted */ -#define MANDOCERR_FATAL MANDOCERR_MEM + MANDOCERR_MEM, /* static buffer exhausted */ + /* ===== system errors ===== */ + + MANDOCERR_SYSOPEN, /* cannot open file */ + MANDOCERR_SYSSTAT, /* cannot stat file */ + MANDOCERR_SYSREAD, /* cannot read file */ + MANDOCERR_MAX }; -typedef int (*mandocmsg)(enum mandocerr, - void *, int, int, const char *); +struct tbl_opts { + 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; + int vert; /* trailing vertical line */ +}; + +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 */ +}; + +/* + * 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 */ + +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 + +enum mandoc_esc mandoc_escape(const char **, const char **, int *); +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(int, enum mandoclevel, mandocmsg, 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 **, char **); +const char *mparse_getkeep(const struct mparse *); +const char *mparse_strerror(enum mandocerr); +const char *mparse_strlevel(enum mandoclevel); __END_DECLS