433 lines
14 KiB
C
433 lines
14 KiB
C
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/* $Id: mandoc.h,v 1.99 2012/02/16 20:51:31 joerg Exp $ */
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/*
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* Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef MANDOC_H
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#define MANDOC_H
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#define ASCII_NBRSP 31 /* non-breaking space */
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#define ASCII_HYPH 30 /* breakable hyphen */
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/*
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* Status level. This refers to both internal status (i.e., whilst
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* running, when warnings/errors are reported) and an indicator of a
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* threshold of when to halt (when said internal state exceeds the
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* threshold).
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*/
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enum mandoclevel {
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MANDOCLEVEL_OK = 0,
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MANDOCLEVEL_RESERVED,
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MANDOCLEVEL_WARNING, /* warnings: syntax, whitespace, etc. */
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MANDOCLEVEL_ERROR, /* input has been thrown away */
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MANDOCLEVEL_FATAL, /* input is borked */
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MANDOCLEVEL_BADARG, /* bad argument in invocation */
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MANDOCLEVEL_SYSERR, /* system error */
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MANDOCLEVEL_MAX
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};
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/*
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* All possible things that can go wrong within a parse, be it libroff,
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* libmdoc, or libman.
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*/
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enum mandocerr {
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MANDOCERR_OK,
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MANDOCERR_WARNING, /* ===== start of warnings ===== */
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/* related to the prologue */
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MANDOCERR_NOTITLE, /* no title in document */
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MANDOCERR_UPPERCASE, /* document title should be all caps */
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MANDOCERR_BADMSEC, /* unknown manual section */
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MANDOCERR_NODATE, /* date missing, using today's date */
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MANDOCERR_BADDATE, /* cannot parse date, using it verbatim */
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MANDOCERR_PROLOGOOO, /* prologue macros out of order */
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MANDOCERR_PROLOGREP, /* duplicate prologue macro */
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MANDOCERR_BADPROLOG, /* macro not allowed in prologue */
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MANDOCERR_BADBODY, /* macro not allowed in body */
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/* related to document structure */
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MANDOCERR_SO, /* .so is fragile, better use ln(1) */
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MANDOCERR_NAMESECFIRST, /* NAME section must come first */
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MANDOCERR_BADNAMESEC, /* bad NAME section contents */
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MANDOCERR_NONAME, /* manual name not yet set */
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MANDOCERR_SECOOO, /* sections out of conventional order */
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MANDOCERR_SECREP, /* duplicate section name */
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MANDOCERR_SECMSEC, /* section not in conventional manual section */
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/* related to macros and nesting */
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MANDOCERR_MACROOBS, /* skipping obsolete macro */
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MANDOCERR_IGNPAR, /* skipping paragraph macro */
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MANDOCERR_IGNNS, /* skipping no-space macro */
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MANDOCERR_SCOPENEST, /* blocks badly nested */
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MANDOCERR_CHILD, /* child violates parent syntax */
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MANDOCERR_NESTEDDISP, /* nested displays are not portable */
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MANDOCERR_SCOPEREP, /* already in literal mode */
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MANDOCERR_LINESCOPE, /* line scope broken */
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/* related to missing macro arguments */
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MANDOCERR_MACROEMPTY, /* skipping empty macro */
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MANDOCERR_ARGCWARN, /* argument count wrong */
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MANDOCERR_DISPTYPE, /* missing display type */
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MANDOCERR_LISTFIRST, /* list type must come first */
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MANDOCERR_NOWIDTHARG, /* tag lists require a width argument */
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MANDOCERR_FONTTYPE, /* missing font type */
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MANDOCERR_WNOSCOPE, /* skipping end of block that is not open */
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/* related to bad macro arguments */
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MANDOCERR_IGNARGV, /* skipping argument */
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MANDOCERR_ARGVREP, /* duplicate argument */
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MANDOCERR_DISPREP, /* duplicate display type */
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MANDOCERR_LISTREP, /* duplicate list type */
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MANDOCERR_BADATT, /* unknown AT&T UNIX version */
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MANDOCERR_BADBOOL, /* bad Boolean value */
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MANDOCERR_BADFONT, /* unknown font */
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MANDOCERR_BADSTANDARD, /* unknown standard specifier */
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MANDOCERR_BADWIDTH, /* bad width argument */
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/* related to plain text */
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MANDOCERR_NOBLANKLN, /* blank line in non-literal context */
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MANDOCERR_BADTAB, /* tab in non-literal context */
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MANDOCERR_EOLNSPACE, /* end of line whitespace */
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MANDOCERR_BADCOMMENT, /* bad comment style */
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MANDOCERR_BADESCAPE, /* unknown escape sequence */
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MANDOCERR_BADQUOTE, /* unterminated quoted string */
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/* related to equations */
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MANDOCERR_EQNQUOTE, /* unexpected literal in equation */
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MANDOCERR_ERROR, /* ===== start of errors ===== */
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/* related to equations */
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MANDOCERR_EQNNSCOPE, /* unexpected equation scope closure*/
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MANDOCERR_EQNSCOPE, /* equation scope open on exit */
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MANDOCERR_EQNBADSCOPE, /* overlapping equation scopes */
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MANDOCERR_EQNEOF, /* unexpected end of equation */
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MANDOCERR_EQNSYNT, /* equation syntax error */
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/* related to tables */
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MANDOCERR_TBL, /* bad table syntax */
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MANDOCERR_TBLOPT, /* bad table option */
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MANDOCERR_TBLLAYOUT, /* bad table layout */
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MANDOCERR_TBLNOLAYOUT, /* no table layout cells specified */
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MANDOCERR_TBLNODATA, /* no table data cells specified */
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MANDOCERR_TBLIGNDATA, /* ignore data in cell */
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MANDOCERR_TBLBLOCK, /* data block still open */
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MANDOCERR_TBLEXTRADAT, /* ignoring extra data cells */
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MANDOCERR_ROFFLOOP, /* input stack limit exceeded, infinite loop? */
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MANDOCERR_BADCHAR, /* skipping bad character */
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MANDOCERR_NAMESC, /* escaped character not allowed in a name */
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MANDOCERR_NOTEXT, /* skipping text before the first section header */
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MANDOCERR_MACRO, /* skipping unknown macro */
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MANDOCERR_REQUEST, /* NOT IMPLEMENTED: skipping request */
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MANDOCERR_ARGCOUNT, /* argument count wrong */
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MANDOCERR_NOSCOPE, /* skipping end of block that is not open */
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MANDOCERR_SCOPEBROKEN, /* missing end of block */
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MANDOCERR_SCOPEEXIT, /* scope open on exit */
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MANDOCERR_UNAME, /* uname(3) system call failed */
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/* FIXME: merge following with MANDOCERR_ARGCOUNT */
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MANDOCERR_NOARGS, /* macro requires line argument(s) */
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MANDOCERR_NOBODY, /* macro requires body argument(s) */
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MANDOCERR_NOARGV, /* macro requires argument(s) */
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MANDOCERR_LISTTYPE, /* missing list type */
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MANDOCERR_ARGSLOST, /* line argument(s) will be lost */
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MANDOCERR_BODYLOST, /* body argument(s) will be lost */
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MANDOCERR_FATAL, /* ===== start of fatal errors ===== */
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MANDOCERR_NOTMANUAL, /* manual isn't really a manual */
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MANDOCERR_COLUMNS, /* column syntax is inconsistent */
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MANDOCERR_BADDISP, /* NOT IMPLEMENTED: .Bd -file */
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MANDOCERR_SYNTARGVCOUNT, /* argument count wrong, violates syntax */
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MANDOCERR_SYNTCHILD, /* child violates parent syntax */
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MANDOCERR_SYNTARGCOUNT, /* argument count wrong, violates syntax */
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MANDOCERR_SOPATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */
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MANDOCERR_NODOCBODY, /* no document body */
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MANDOCERR_NODOCPROLOG, /* no document prologue */
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MANDOCERR_MEM, /* static buffer exhausted */
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MANDOCERR_MAX
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};
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struct tbl {
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char tab; /* cell-separator */
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char decimal; /* decimal point */
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int linesize;
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int opts;
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#define TBL_OPT_CENTRE (1 << 0)
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#define TBL_OPT_EXPAND (1 << 1)
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#define TBL_OPT_BOX (1 << 2)
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#define TBL_OPT_DBOX (1 << 3)
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#define TBL_OPT_ALLBOX (1 << 4)
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#define TBL_OPT_NOKEEP (1 << 5)
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#define TBL_OPT_NOSPACE (1 << 6)
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int cols; /* number of columns */
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};
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enum tbl_headt {
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TBL_HEAD_DATA, /* plug in data from tbl_dat */
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TBL_HEAD_VERT, /* vertical spacer */
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TBL_HEAD_DVERT /* double-vertical spacer */
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};
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/*
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* The head of a table specifies all of its columns. When formatting a
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* tbl_span, iterate over these and plug in data from the tbl_span when
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* appropriate, using tbl_cell as a guide to placement.
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*/
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struct tbl_head {
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enum tbl_headt pos;
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int ident; /* 0 <= unique id < cols */
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struct tbl_head *next;
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struct tbl_head *prev;
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};
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enum tbl_cellt {
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TBL_CELL_CENTRE, /* c, C */
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TBL_CELL_RIGHT, /* r, R */
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TBL_CELL_LEFT, /* l, L */
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TBL_CELL_NUMBER, /* n, N */
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TBL_CELL_SPAN, /* s, S */
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TBL_CELL_LONG, /* a, A */
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TBL_CELL_DOWN, /* ^ */
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TBL_CELL_HORIZ, /* _, - */
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TBL_CELL_DHORIZ, /* = */
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TBL_CELL_VERT, /* | */
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TBL_CELL_DVERT, /* || */
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TBL_CELL_MAX
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};
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/*
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* A cell in a layout row.
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*/
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struct tbl_cell {
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struct tbl_cell *next;
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enum tbl_cellt pos;
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size_t spacing;
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int flags;
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#define TBL_CELL_TALIGN (1 << 0) /* t, T */
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#define TBL_CELL_BALIGN (1 << 1) /* d, D */
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#define TBL_CELL_BOLD (1 << 2) /* fB, B, b */
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#define TBL_CELL_ITALIC (1 << 3) /* fI, I, i */
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#define TBL_CELL_EQUAL (1 << 4) /* e, E */
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#define TBL_CELL_UP (1 << 5) /* u, U */
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#define TBL_CELL_WIGN (1 << 6) /* z, Z */
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struct tbl_head *head;
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};
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/*
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* A layout row.
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*/
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struct tbl_row {
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struct tbl_row *next;
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struct tbl_cell *first;
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struct tbl_cell *last;
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};
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enum tbl_datt {
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TBL_DATA_NONE, /* has no data */
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TBL_DATA_DATA, /* consists of data/string */
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TBL_DATA_HORIZ, /* horizontal line */
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TBL_DATA_DHORIZ, /* double-horizontal line */
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TBL_DATA_NHORIZ, /* squeezed horizontal line */
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TBL_DATA_NDHORIZ /* squeezed double-horizontal line */
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};
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/*
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* A cell within a row of data. The "string" field contains the actual
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* string value that's in the cell. The rest is layout.
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*/
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struct tbl_dat {
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struct tbl_cell *layout; /* layout cell */
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int spans; /* how many spans follow */
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struct tbl_dat *next;
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char *string; /* data (NULL if not TBL_DATA_DATA) */
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enum tbl_datt pos;
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};
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enum tbl_spant {
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TBL_SPAN_DATA, /* span consists of data */
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TBL_SPAN_HORIZ, /* span is horizontal line */
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TBL_SPAN_DHORIZ /* span is double horizontal line */
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};
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/*
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* A row of data in a table.
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*/
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struct tbl_span {
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struct tbl *tbl;
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struct tbl_head *head;
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struct tbl_row *layout; /* layout row */
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struct tbl_dat *first;
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struct tbl_dat *last;
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int line; /* parse line */
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int flags;
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#define TBL_SPAN_FIRST (1 << 0)
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#define TBL_SPAN_LAST (1 << 1)
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enum tbl_spant pos;
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struct tbl_span *next;
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};
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enum eqn_boxt {
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EQN_ROOT, /* root of parse tree */
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EQN_TEXT, /* text (number, variable, whatever) */
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EQN_SUBEXPR, /* nested `eqn' subexpression */
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EQN_LIST, /* subexpressions list */
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EQN_MATRIX /* matrix subexpression */
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};
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enum eqn_markt {
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EQNMARK_NONE = 0,
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EQNMARK_DOT,
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EQNMARK_DOTDOT,
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EQNMARK_HAT,
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EQNMARK_TILDE,
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EQNMARK_VEC,
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EQNMARK_DYAD,
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EQNMARK_BAR,
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EQNMARK_UNDER,
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EQNMARK__MAX
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};
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enum eqn_fontt {
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EQNFONT_NONE = 0,
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EQNFONT_ROMAN,
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EQNFONT_BOLD,
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EQNFONT_FAT,
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EQNFONT_ITALIC,
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EQNFONT__MAX
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};
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enum eqn_post {
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EQNPOS_NONE = 0,
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EQNPOS_OVER,
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EQNPOS_SUP,
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EQNPOS_SUB,
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EQNPOS_TO,
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EQNPOS_FROM,
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EQNPOS__MAX
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};
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enum eqn_pilet {
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EQNPILE_NONE = 0,
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EQNPILE_PILE,
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EQNPILE_CPILE,
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EQNPILE_RPILE,
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EQNPILE_LPILE,
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EQNPILE_COL,
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EQNPILE_CCOL,
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EQNPILE_RCOL,
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EQNPILE_LCOL,
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EQNPILE__MAX
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};
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/*
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* A "box" is a parsed mathematical expression as defined by the eqn.7
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* grammar.
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*/
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struct eqn_box {
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int size; /* font size of expression */
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#define EQN_DEFSIZE INT_MIN
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enum eqn_boxt type; /* type of node */
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struct eqn_box *first; /* first child node */
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struct eqn_box *last; /* last child node */
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struct eqn_box *next; /* node sibling */
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||
|
|
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_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 */
|
||
|
|
};
|
||
|
|
|
||
|
|
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 *);
|
||
|
|
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
|
||
|
|
|
||
|
|
#endif /*!MANDOC_H*/
|