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Annotation of mandoc/mandoc.h, Revision 1.57

1.57    ! kristaps    1: /*     $Id: mandoc.h,v 1.56 2011/02/06 22:02:58 kristaps Exp $ */
1.1       kristaps    2: /*
1.46      schwarze    3:  * Copyright (c) 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.1       kristaps    4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
                      6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
                      8:  *
                      9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     16:  */
                     17: #ifndef MANDOC_H
                     18: #define MANDOC_H
1.7       kristaps   19:
                     20: #define ASCII_NBRSP     31  /* non-breaking space */
                     21: #define        ASCII_HYPH       30  /* breakable hyphen */
                     22:
1.22      kristaps   23: /*
                     24:  * Status level.  This refers to both internal status (i.e., whilst
                     25:  * running, when warnings/errors are reported) and an indicator of a
                     26:  * threshold of when to halt (when said internal state exceeds the
                     27:  * threshold).
                     28:  */
1.18      schwarze   29: enum   mandoclevel {
                     30:        MANDOCLEVEL_OK = 0,
                     31:        MANDOCLEVEL_RESERVED,
1.22      kristaps   32:        MANDOCLEVEL_WARNING, /* warnings: syntax, whitespace, etc. */
                     33:        MANDOCLEVEL_ERROR, /* input has been thrown away */
                     34:        MANDOCLEVEL_FATAL, /* input is borked */
                     35:        MANDOCLEVEL_BADARG, /* bad argument in invocation */
                     36:        MANDOCLEVEL_SYSERR, /* system error */
1.18      schwarze   37:        MANDOCLEVEL_MAX
                     38: };
                     39:
1.22      kristaps   40: /*
                     41:  * All possible things that can go wrong within a parse, be it libroff,
                     42:  * libmdoc, or libman.
                     43:  */
1.1       kristaps   44: enum   mandocerr {
                     45:        MANDOCERR_OK,
1.13      schwarze   46:
1.21      kristaps   47:        MANDOCERR_WARNING, /* ===== start of warnings ===== */
1.32      kristaps   48:
                     49:        /* related to the prologue */
                     50:        MANDOCERR_NOTITLE, /* no title in document */
                     51:        MANDOCERR_UPPERCASE, /* document title should be all caps */
                     52:        MANDOCERR_BADMSEC, /* unknown manual section */
                     53:        MANDOCERR_BADDATE, /* cannot parse date argument */
                     54:        MANDOCERR_PROLOGOOO, /* prologue macros out of order */
                     55:        MANDOCERR_PROLOGREP, /* duplicate prologue macro */
                     56:        MANDOCERR_BADPROLOG, /* macro not allowed in prologue */
                     57:        MANDOCERR_BADBODY, /* macro not allowed in body */
                     58:
                     59:        /* related to document structure */
1.26      kristaps   60:        MANDOCERR_SO, /* .so is fragile, better use ln(1) */
1.32      kristaps   61:        MANDOCERR_NAMESECFIRST, /* NAME section must come first */
                     62:        MANDOCERR_BADNAMESEC, /* bad NAME section contents */
                     63:        MANDOCERR_NONAME, /* manual name not yet set */
1.9       kristaps   64:        MANDOCERR_SECOOO, /* sections out of conventional order */
1.32      kristaps   65:        MANDOCERR_SECREP, /* duplicate section name */
1.5       kristaps   66:        MANDOCERR_SECMSEC, /* section not in conventional manual section */
1.32      kristaps   67:
                     68:        /* related to macros and nesting */
                     69:        MANDOCERR_MACROOBS, /* skipping obsolete macro */
1.35      kristaps   70:        MANDOCERR_IGNPAR, /* skipping paragraph macro */
1.54      kristaps   71:        MANDOCERR_IGNNS, /* skipping no-space macro */
1.14      schwarze   72:        MANDOCERR_SCOPENEST, /* blocks badly nested */
1.32      kristaps   73:        MANDOCERR_CHILD, /* child violates parent syntax */
                     74:        MANDOCERR_NESTEDDISP, /* nested displays are not portable */
                     75:        MANDOCERR_SCOPEREP, /* already in literal mode */
                     76:
                     77:        /* related to missing macro arguments */
                     78:        MANDOCERR_MACROEMPTY, /* skipping empty macro */
1.46      schwarze   79:        MANDOCERR_ARGCWARN, /* argument count wrong */
1.32      kristaps   80:        MANDOCERR_DISPTYPE, /* missing display type */
                     81:        MANDOCERR_LISTFIRST, /* list type must come first */
                     82:        MANDOCERR_NOWIDTHARG, /* tag lists require a width argument */
                     83:        MANDOCERR_FONTTYPE, /* missing font type */
1.53      kristaps   84:        MANDOCERR_WNOSCOPE, /* skipping end of block that is not open */
1.13      schwarze   85:
1.32      kristaps   86:        /* related to bad macro arguments */
                     87:        MANDOCERR_IGNARGV, /* skipping argument */
                     88:        MANDOCERR_ARGVREP, /* duplicate argument */
                     89:        MANDOCERR_DISPREP, /* duplicate display type */
                     90:        MANDOCERR_LISTREP, /* duplicate list type */
                     91:        MANDOCERR_BADATT, /* unknown AT&T UNIX version */
1.5       kristaps   92:        MANDOCERR_BADBOOL, /* bad Boolean value */
1.31      kristaps   93:        MANDOCERR_BADFONT, /* unknown font */
1.32      kristaps   94:        MANDOCERR_BADSTANDARD, /* unknown standard specifier */
                     95:        MANDOCERR_BADWIDTH, /* bad width argument */
                     96:
                     97:        /* related to plain text */
                     98:        MANDOCERR_NOBLANKLN, /* blank line in non-literal context */
                     99:        MANDOCERR_BADTAB, /* tab in non-literal context */
                    100:        MANDOCERR_EOLNSPACE, /* end of line whitespace */
1.5       kristaps  101:        MANDOCERR_BADCOMMENT, /* bad comment style */
1.32      kristaps  102:        MANDOCERR_BADESCAPE, /* unknown escape sequence */
                    103:        MANDOCERR_BADQUOTE, /* unterminated quoted string */
                    104:
                    105:        MANDOCERR_ERROR, /* ===== start of errors ===== */
                    106:
1.42      kristaps  107:        /* related to tables */
1.36      kristaps  108:        MANDOCERR_TBL, /* bad table syntax */
                    109:        MANDOCERR_TBLOPT, /* bad table option */
1.37      kristaps  110:        MANDOCERR_TBLLAYOUT, /* bad table layout */
                    111:        MANDOCERR_TBLNOLAYOUT, /* no table layout cells specified */
1.39      kristaps  112:        MANDOCERR_TBLNODATA, /* no table data cells specified */
1.47      kristaps  113:        MANDOCERR_TBLIGNDATA, /* ignore data in cell */
1.48      kristaps  114:        MANDOCERR_TBLBLOCK, /* data block still open */
1.50      kristaps  115:        MANDOCERR_TBLEXTRADAT, /* ignoring extra data cells */
1.42      kristaps  116:
1.33      schwarze  117:        MANDOCERR_ROFFLOOP, /* input stack limit exceeded, infinite loop? */
1.32      kristaps  118:        MANDOCERR_BADCHAR, /* skipping bad character */
1.52      schwarze  119:        MANDOCERR_NAMESC, /* escaped character not allowed in a name */
1.32      kristaps  120:        MANDOCERR_NOTEXT, /* skipping text before the first section header */
                    121:        MANDOCERR_MACRO, /* skipping unknown macro */
1.25      kristaps  122:        MANDOCERR_REQUEST, /* NOT IMPLEMENTED: skipping request */
1.5       kristaps  123:        MANDOCERR_LINESCOPE, /* line scope broken */
                    124:        MANDOCERR_ARGCOUNT, /* argument count wrong */
1.32      kristaps  125:        MANDOCERR_NOSCOPE, /* skipping end of block that is not open */
1.30      kristaps  126:        MANDOCERR_SCOPEBROKEN, /* missing end of block */
1.19      schwarze  127:        MANDOCERR_SCOPEEXIT, /* scope open on exit */
1.28      kristaps  128:        MANDOCERR_UNAME, /* uname(3) system call failed */
1.5       kristaps  129:        /* FIXME: merge following with MANDOCERR_ARGCOUNT */
                    130:        MANDOCERR_NOARGS, /* macro requires line argument(s) */
                    131:        MANDOCERR_NOBODY, /* macro requires body argument(s) */
                    132:        MANDOCERR_NOARGV, /* macro requires argument(s) */
1.10      kristaps  133:        MANDOCERR_LISTTYPE, /* missing list type */
1.5       kristaps  134:        MANDOCERR_ARGSLOST, /* line argument(s) will be lost */
                    135:        MANDOCERR_BODYLOST, /* body argument(s) will be lost */
1.13      schwarze  136:
1.21      kristaps  137:        MANDOCERR_FATAL, /* ===== start of fatal errors ===== */
1.32      kristaps  138:
1.8       kristaps  139:        MANDOCERR_COLUMNS, /* column syntax is inconsistent */
1.32      kristaps  140:        MANDOCERR_BADDISP, /* NOT IMPLEMENTED: .Bd -file */
1.5       kristaps  141:        MANDOCERR_SYNTLINESCOPE, /* line scope broken, syntax violated */
                    142:        MANDOCERR_SYNTARGVCOUNT, /* argument count wrong, violates syntax */
                    143:        MANDOCERR_SYNTCHILD, /* child violates parent syntax */
                    144:        MANDOCERR_SYNTARGCOUNT, /* argument count wrong, violates syntax */
1.26      kristaps  145:        MANDOCERR_SOPATH, /* NOT IMPLEMENTED: .so with absolute path or ".." */
1.5       kristaps  146:        MANDOCERR_NODOCBODY, /* no document body */
                    147:        MANDOCERR_NODOCPROLOG, /* no document prologue */
1.18      schwarze  148:        MANDOCERR_MEM, /* static buffer exhausted */
1.1       kristaps  149:        MANDOCERR_MAX
1.43      kristaps  150: };
                    151:
                    152: struct tbl {
                    153:        char              tab; /* cell-separator */
                    154:        char              decimal; /* decimal point */
                    155:        int               linesize;
                    156:        int               opts;
                    157: #define        TBL_OPT_CENTRE   (1 << 0)
                    158: #define        TBL_OPT_EXPAND   (1 << 1)
                    159: #define        TBL_OPT_BOX      (1 << 2)
                    160: #define        TBL_OPT_DBOX     (1 << 3)
                    161: #define        TBL_OPT_ALLBOX   (1 << 4)
                    162: #define        TBL_OPT_NOKEEP   (1 << 5)
                    163: #define        TBL_OPT_NOSPACE  (1 << 6)
1.45      kristaps  164:        int               cols; /* number of columns */
1.38      kristaps  165: };
                    166:
1.41      kristaps  167: enum   tbl_headt {
                    168:        TBL_HEAD_DATA, /* plug in data from tbl_dat */
                    169:        TBL_HEAD_VERT, /* vertical spacer */
                    170:        TBL_HEAD_DVERT  /* double-vertical spacer */
                    171: };
                    172:
                    173: /*
                    174:  * The head of a table specifies all of its columns.  When formatting a
                    175:  * tbl_span, iterate over these and plug in data from the tbl_span when
                    176:  * appropriate, using tbl_cell as a guide to placement.
                    177:  */
                    178: struct tbl_head {
                    179:        enum tbl_headt    pos;
1.45      kristaps  180:        int               ident; /* 0 <= unique id < cols */
1.41      kristaps  181:        struct tbl_head  *next;
                    182:        struct tbl_head  *prev;
                    183: };
                    184:
1.38      kristaps  185: enum   tbl_cellt {
                    186:        TBL_CELL_CENTRE, /* c, C */
                    187:        TBL_CELL_RIGHT, /* r, R */
                    188:        TBL_CELL_LEFT, /* l, L */
                    189:        TBL_CELL_NUMBER, /* n, N */
                    190:        TBL_CELL_SPAN, /* s, S */
                    191:        TBL_CELL_LONG, /* a, A */
                    192:        TBL_CELL_DOWN, /* ^ */
                    193:        TBL_CELL_HORIZ, /* _, - */
                    194:        TBL_CELL_DHORIZ, /* = */
                    195:        TBL_CELL_VERT, /* | */
                    196:        TBL_CELL_DVERT, /* || */
                    197:        TBL_CELL_MAX
                    198: };
                    199:
                    200: /*
                    201:  * A cell in a layout row.
                    202:  */
                    203: struct tbl_cell {
                    204:        struct tbl_cell  *next;
                    205:        enum tbl_cellt    pos;
1.51      kristaps  206:        size_t            spacing;
1.38      kristaps  207:        int               flags;
                    208: #define        TBL_CELL_TALIGN  (1 << 0) /* t, T */
                    209: #define        TBL_CELL_BALIGN  (1 << 1) /* d, D */
                    210: #define        TBL_CELL_BOLD    (1 << 2) /* fB, B, b */
                    211: #define        TBL_CELL_ITALIC  (1 << 3) /* fI, I, i */
                    212: #define        TBL_CELL_EQUAL   (1 << 4) /* e, E */
                    213: #define        TBL_CELL_UP      (1 << 5) /* u, U */
                    214: #define        TBL_CELL_WIGN    (1 << 6) /* z, Z */
1.41      kristaps  215:        struct tbl_head  *head;
1.38      kristaps  216: };
                    217:
                    218: /*
                    219:  * A layout row.
                    220:  */
                    221: struct tbl_row {
                    222:        struct tbl_row   *next;
                    223:        struct tbl_cell  *first;
                    224:        struct tbl_cell  *last;
                    225: };
                    226:
1.40      kristaps  227: enum   tbl_datt {
1.51      kristaps  228:        TBL_DATA_NONE, /* has no data */
                    229:        TBL_DATA_DATA, /* consists of data/string */
                    230:        TBL_DATA_HORIZ, /* horizontal line */
                    231:        TBL_DATA_DHORIZ, /* double-horizontal line */
                    232:        TBL_DATA_NHORIZ, /* squeezed horizontal line */
                    233:        TBL_DATA_NDHORIZ /* squeezed double-horizontal line */
1.40      kristaps  234: };
                    235:
1.38      kristaps  236: /*
                    237:  * A cell within a row of data.  The "string" field contains the actual
                    238:  * string value that's in the cell.  The rest is layout.
                    239:  */
                    240: struct tbl_dat {
1.51      kristaps  241:        struct tbl_cell  *layout; /* layout cell */
1.50      kristaps  242:        int               spans; /* how many spans follow */
1.38      kristaps  243:        struct tbl_dat   *next;
1.51      kristaps  244:        char             *string; /* data (NULL if not TBL_DATA_DATA) */
1.40      kristaps  245:        enum tbl_datt     pos;
                    246: };
                    247:
                    248: enum   tbl_spant {
                    249:        TBL_SPAN_DATA, /* span consists of data */
                    250:        TBL_SPAN_HORIZ, /* span is horizontal line */
                    251:        TBL_SPAN_DHORIZ /* span is double horizontal line */
1.38      kristaps  252: };
                    253:
                    254: /*
                    255:  * A row of data in a table.
                    256:  */
                    257: struct tbl_span {
1.44      kristaps  258:        struct tbl       *tbl;
                    259:        struct tbl_head  *head;
1.51      kristaps  260:        struct tbl_row   *layout; /* layout row */
1.38      kristaps  261:        struct tbl_dat   *first;
                    262:        struct tbl_dat   *last;
1.56      kristaps  263:        int               line; /* parse line */
1.44      kristaps  264:        int               flags;
                    265: #define        TBL_SPAN_FIRST   (1 << 0)
                    266: #define        TBL_SPAN_LAST    (1 << 1)
1.40      kristaps  267:        enum tbl_spant    pos;
1.38      kristaps  268:        struct tbl_span  *next;
1.55      kristaps  269: };
                    270:
                    271: struct eqn {
                    272:        size_t            sz;
                    273:        char             *data;
1.57    ! kristaps  274:        int               line; /* invocation line */
        !           275:        int               pos; /* invocation position */
1.1       kristaps  276: };
                    277:
1.22      kristaps  278: /*
                    279:  * Available registers (set in libroff, accessed elsewhere).
                    280:  */
1.16      kristaps  281: enum   regs {
1.22      kristaps  282:        REG_nS = 0,
1.16      kristaps  283:        REG__MAX
1.21      kristaps  284: };
                    285:
1.22      kristaps  286: /*
                    287:  * A register (struct reg) can consist of many types: this consists of
                    288:  * normalised types from the original string form.
                    289:  */
                    290: union  regval {
                    291:        unsigned  u; /* unsigned integer */
1.16      kristaps  292: };
                    293:
                    294: /*
                    295:  * A single register entity.  If "set" is zero, the value of the
                    296:  * register should be the default one, which is per-register.  It's
                    297:  * assumed that callers know which type in "v" corresponds to which
                    298:  * register value.
                    299:  */
                    300: struct reg {
                    301:        int               set; /* whether set or not */
1.22      kristaps  302:        union regval      v; /* parsed data */
1.16      kristaps  303: };
                    304:
                    305: /*
                    306:  * The primary interface to setting register values is in libroff,
                    307:  * although libmdoc and libman from time to time will manipulate
                    308:  * registers (such as `.Sh SYNOPSIS' enabling REG_nS).
                    309:  */
                    310: struct regset {
                    311:        struct reg        regs[REG__MAX];
                    312: };
1.22      kristaps  313:
                    314: __BEGIN_DECLS
1.16      kristaps  315:
                    316: /*
                    317:  * Callback function for warnings, errors, and fatal errors as they
                    318:  * occur in the compilers libroff, libmdoc, and libman.
                    319:  */
                    320: typedef        int             (*mandocmsg)(enum mandocerr, void *,
                    321:                                int, int, const char *);
1.1       kristaps  322:
                    323: __END_DECLS
                    324:
                    325: #endif /*!MANDOC_H*/

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