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Annotation of mandoc/mdoc_macro.c, Revision 1.185

1.185   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.184 2015/04/02 21:36:50 schwarze Exp $ */
1.1       kristaps    2: /*
1.116     schwarze    3:  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.162     schwarze    4:  * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
1.8       kristaps    7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    9:  *
1.184     schwarze   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.8       kristaps   11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.184     schwarze   12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.8       kristaps   13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   17:  */
1.40      kristaps   18: #include "config.h"
1.140     schwarze   19:
                     20: #include <sys/types.h>
1.40      kristaps   21:
1.1       kristaps   22: #include <assert.h>
                     23: #include <ctype.h>
                     24: #include <stdlib.h>
                     25: #include <stdio.h>
                     26: #include <string.h>
1.38      kristaps   27: #include <time.h>
1.1       kristaps   28:
1.184     schwarze   29: #include "mandoc.h"
                     30: #include "roff.h"
1.106     kristaps   31: #include "mdoc.h"
1.184     schwarze   32: #include "libmandoc.h"
1.1       kristaps   33: #include "libmdoc.h"
                     34:
1.151     schwarze   35: static void            blk_full(MACRO_PROT_ARGS);
                     36: static void            blk_exp_close(MACRO_PROT_ARGS);
                     37: static void            blk_part_exp(MACRO_PROT_ARGS);
                     38: static void            blk_part_imp(MACRO_PROT_ARGS);
                     39: static void            ctx_synopsis(MACRO_PROT_ARGS);
                     40: static void            in_line_eoln(MACRO_PROT_ARGS);
                     41: static void            in_line_argn(MACRO_PROT_ARGS);
                     42: static void            in_line(MACRO_PROT_ARGS);
                     43: static void            phrase_ta(MACRO_PROT_ARGS);
1.53      kristaps   44:
1.150     schwarze   45: static void            dword(struct mdoc *, int, int, const char *,
1.123     schwarze   46:                                 enum mdelim, int);
1.150     schwarze   47: static void            append_delims(struct mdoc *, int, int *, char *);
1.185   ! schwarze   48: static int             lookup(struct mdoc *, int, int, int, const char *);
1.153     schwarze   49: static int             macro_or_word(MACRO_PROT_ARGS, int);
1.185   ! schwarze   50: static int             parse_rest(struct mdoc *, int, int, int *, char *);
        !            51: static int             rew_alt(int);
        !            52: static void            rew_elem(struct mdoc *, int);
        !            53: static void            rew_last(struct mdoc *, const struct roff_node *);
        !            54: static void            rew_pending(struct mdoc *, const struct roff_node *);
1.1       kristaps   55:
                     56: const  struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123     schwarze   57:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1       kristaps   58:        { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
                     59:        { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
                     60:        { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123     schwarze   61:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
                     62:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
                     63:        { in_line_eoln, 0 }, /* Pp */
                     64:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
                     65:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1       kristaps   66:        { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123     schwarze   67:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1       kristaps   68:        { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123     schwarze   69:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
                     70:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
                     71:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
                     72:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1       kristaps   73:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129     schwarze   74:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1       kristaps   75:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123     schwarze   76:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
                     77:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
                     78:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1       kristaps   79:        { in_line_eoln, 0 }, /* Ex */
1.123     schwarze   80:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
                     81:        { in_line_eoln, 0 }, /* Fd */
1.1       kristaps   82:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123     schwarze   83:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
                     84:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128     schwarze   85:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18      kristaps   86:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123     schwarze   87:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
                     88:        { blk_full, MDOC_JOIN }, /* Nd */
                     89:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1       kristaps   90:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132     schwarze   91:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1       kristaps   92:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
                     93:        { in_line_eoln, 0 }, /* Rv */
1.123     schwarze   94:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1       kristaps   95:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123     schwarze   96:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42      kristaps   97:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123     schwarze   98:        { in_line_eoln, MDOC_JOIN }, /* %A */
                     99:        { in_line_eoln, MDOC_JOIN }, /* %B */
                    100:        { in_line_eoln, MDOC_JOIN }, /* %D */
                    101:        { in_line_eoln, MDOC_JOIN }, /* %I */
                    102:        { in_line_eoln, MDOC_JOIN }, /* %J */
1.1       kristaps  103:        { in_line_eoln, 0 }, /* %N */
1.123     schwarze  104:        { in_line_eoln, MDOC_JOIN }, /* %O */
1.1       kristaps  105:        { in_line_eoln, 0 }, /* %P */
1.123     schwarze  106:        { in_line_eoln, MDOC_JOIN }, /* %R */
                    107:        { in_line_eoln, MDOC_JOIN }, /* %T */
1.1       kristaps  108:        { in_line_eoln, 0 }, /* %V */
1.123     schwarze  109:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    110:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
                    111:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    112:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
                    113:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1       kristaps  114:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123     schwarze  115:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    116:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
                    117:        { blk_full, MDOC_EXPLICIT }, /* Bf */
                    118:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    119:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
                    120:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1       kristaps  121:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
                    122:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
                    123:        { in_line_eoln, 0 }, /* Db */
1.123     schwarze  124:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    125:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
                    126:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    127:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
                    128:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
                    129:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
                    130:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
                    131:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1       kristaps  132:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
                    133:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11      kristaps  134:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144     schwarze  135:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123     schwarze  136:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
                    137:                        MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1       kristaps  138:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
                    139:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123     schwarze  140:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    141:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52      kristaps  142:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123     schwarze  143:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    144:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
                    145:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
                    146:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    147:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
                    148:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
                    149:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    150:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
                    151:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
                    152:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1       kristaps  153:        { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123     schwarze  154:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    155:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
                    156:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    157:                        MDOC_EXPLICIT | MDOC_JOIN }, /* So */
                    158:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147     schwarze  159:        { in_line_argn, 0 }, /* Sm */
1.123     schwarze  160:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
                    161:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1       kristaps  162:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123     schwarze  163:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1       kristaps  164:        { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
                    165:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123     schwarze  166:        { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
                    167:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    168:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
                    169:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    170:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
                    171:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    172:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1       kristaps  173:        { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123     schwarze  174:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1       kristaps  175:        { in_line_eoln, 0 }, /* Bt */
                    176:        { in_line_eoln, 0 }, /* Hf */
1.132     schwarze  177:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1       kristaps  178:        { in_line_eoln, 0 }, /* Ud */
1.69      kristaps  179:        { in_line, 0 }, /* Lb */
1.123     schwarze  180:        { in_line_eoln, 0 }, /* Lp */
                    181:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
                    182:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
                    183:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
                    184:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    185:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
                    186:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    187:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
                    188:        { in_line_eoln, MDOC_JOIN }, /* %C */
1.132     schwarze  189:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
                    190:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1       kristaps  191:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123     schwarze  192:        { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20      kristaps  193:        { in_line_eoln, 0 }, /* br */
                    194:        { in_line_eoln, 0 }, /* sp */
1.37      kristaps  195:        { in_line_eoln, 0 }, /* %U */
1.123     schwarze  196:        { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143     schwarze  197:        { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1       kristaps  198: };
                    199:
                    200: const  struct mdoc_macro * const mdoc_macros = __mdoc_macros;
                    201:
                    202:
                    203: /*
                    204:  * This is called at the end of parsing.  It must traverse up the tree,
                    205:  * closing out open [implicit] scopes.  Obviously, open explicit scopes
                    206:  * are errors.
                    207:  */
1.151     schwarze  208: void
1.119     schwarze  209: mdoc_macroend(struct mdoc *mdoc)
1.1       kristaps  210: {
1.185   ! schwarze  211:        struct roff_node *n;
1.1       kristaps  212:
                    213:        /* Scan for open explicit scopes. */
                    214:
1.151     schwarze  215:        n = mdoc->last->flags & MDOC_VALID ?
1.131     schwarze  216:            mdoc->last->parent : mdoc->last;
1.1       kristaps  217:
1.94      schwarze  218:        for ( ; n; n = n->parent)
1.184     schwarze  219:                if (n->type == ROFFT_BLOCK &&
1.151     schwarze  220:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137     schwarze  221:                        mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
                    222:                            n->line, n->pos, mdoc_macronames[n->tok]);
1.1       kristaps  223:
1.32      kristaps  224:        /* Rewind to the first. */
                    225:
1.149     schwarze  226:        rew_last(mdoc, mdoc->first);
1.1       kristaps  227: }
                    228:
1.32      kristaps  229: /*
1.153     schwarze  230:  * Look up the macro at *p called by "from",
                    231:  * or as a line macro if from == MDOC_MAX.
1.32      kristaps  232:  */
1.185   ! schwarze  233: static int
        !           234: lookup(struct mdoc *mdoc, int from, int line, int ppos, const char *p)
1.28      kristaps  235: {
1.185   ! schwarze  236:        int      res;
1.1       kristaps  237:
1.153     schwarze  238:        if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
                    239:                res = mdoc_hash_find(p);
1.155     schwarze  240:                if (res != MDOC_MAX) {
                    241:                        if (mdoc_macros[res].flags & MDOC_CALLABLE)
                    242:                                return(res);
                    243:                        if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
                    244:                                mandoc_msg(MANDOCERR_MACRO_CALL,
                    245:                                    mdoc->parse, line, ppos, p);
                    246:                }
1.153     schwarze  247:        }
1.1       kristaps  248:        return(MDOC_MAX);
                    249: }
                    250:
1.166     schwarze  251: /*
                    252:  * Rewind up to and including a specific node.
                    253:  */
1.149     schwarze  254: static void
1.185   ! schwarze  255: rew_last(struct mdoc *mdoc, const struct roff_node *to)
1.1       kristaps  256: {
1.185   ! schwarze  257:        struct roff_node *n, *np;
1.1       kristaps  258:
                    259:        assert(to);
                    260:        mdoc->next = MDOC_NEXT_SIBLING;
                    261:        while (mdoc->last != to) {
1.100     kristaps  262:                /*
                    263:                 * Save the parent here, because we may delete the
1.119     schwarze  264:                 * mdoc->last node in the post-validation phase and reset
                    265:                 * it to mdoc->last->parent, causing a step in the closing
1.100     kristaps  266:                 * out to be lost.
                    267:                 */
                    268:                np = mdoc->last->parent;
1.149     schwarze  269:                mdoc_valid_post(mdoc);
1.99      kristaps  270:                n = mdoc->last;
1.100     kristaps  271:                mdoc->last = np;
1.1       kristaps  272:                assert(mdoc->last);
1.99      kristaps  273:                mdoc->last->last = n;
1.1       kristaps  274:        }
1.149     schwarze  275:        mdoc_valid_post(mdoc);
1.1       kristaps  276: }
                    277:
1.32      kristaps  278: /*
1.166     schwarze  279:  * Rewind up to a specific block, including all blocks that broke it.
                    280:  */
                    281: static void
1.185   ! schwarze  282: rew_pending(struct mdoc *mdoc, const struct roff_node *n)
1.166     schwarze  283: {
                    284:
1.183     schwarze  285:        for (;;) {
                    286:                rew_last(mdoc, n);
                    287:
                    288:                switch (n->type) {
1.184     schwarze  289:                case ROFFT_HEAD:
1.183     schwarze  290:                        mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
                    291:                        return;
1.184     schwarze  292:                case ROFFT_BLOCK:
1.183     schwarze  293:                        break;
                    294:                default:
                    295:                        return;
                    296:                }
1.166     schwarze  297:
1.183     schwarze  298:                if ( ! (n->flags & MDOC_BROKEN))
                    299:                        return;
1.166     schwarze  300:
1.183     schwarze  301:                for (;;) {
                    302:                        if ((n = n->parent) == NULL)
                    303:                                return;
                    304:
1.184     schwarze  305:                        if (n->type == ROFFT_BLOCK ||
                    306:                            n->type == ROFFT_HEAD) {
1.183     schwarze  307:                                if (n->flags & MDOC_ENDED)
                    308:                                        break;
                    309:                                else
                    310:                                        return;
                    311:                        }
                    312:                }
1.166     schwarze  313:        }
                    314: }
                    315:
                    316: /*
1.84      schwarze  317:  * For a block closing macro, return the corresponding opening one.
                    318:  * Otherwise, return the macro itself.
1.32      kristaps  319:  */
1.185   ! schwarze  320: static int
        !           321: rew_alt(int tok)
1.1       kristaps  322: {
                    323:        switch (tok) {
1.131     schwarze  324:        case MDOC_Ac:
1.1       kristaps  325:                return(MDOC_Ao);
1.131     schwarze  326:        case MDOC_Bc:
1.1       kristaps  327:                return(MDOC_Bo);
1.131     schwarze  328:        case MDOC_Brc:
1.1       kristaps  329:                return(MDOC_Bro);
1.131     schwarze  330:        case MDOC_Dc:
1.1       kristaps  331:                return(MDOC_Do);
1.131     schwarze  332:        case MDOC_Ec:
1.1       kristaps  333:                return(MDOC_Eo);
1.131     schwarze  334:        case MDOC_Ed:
1.1       kristaps  335:                return(MDOC_Bd);
1.131     schwarze  336:        case MDOC_Ef:
1.1       kristaps  337:                return(MDOC_Bf);
1.131     schwarze  338:        case MDOC_Ek:
1.1       kristaps  339:                return(MDOC_Bk);
1.131     schwarze  340:        case MDOC_El:
1.1       kristaps  341:                return(MDOC_Bl);
1.131     schwarze  342:        case MDOC_Fc:
1.1       kristaps  343:                return(MDOC_Fo);
1.131     schwarze  344:        case MDOC_Oc:
1.1       kristaps  345:                return(MDOC_Oo);
1.131     schwarze  346:        case MDOC_Pc:
1.1       kristaps  347:                return(MDOC_Po);
1.131     schwarze  348:        case MDOC_Qc:
1.1       kristaps  349:                return(MDOC_Qo);
1.131     schwarze  350:        case MDOC_Re:
1.1       kristaps  351:                return(MDOC_Rs);
1.131     schwarze  352:        case MDOC_Sc:
1.1       kristaps  353:                return(MDOC_So);
1.131     schwarze  354:        case MDOC_Xc:
1.1       kristaps  355:                return(MDOC_Xo);
                    356:        default:
1.84      schwarze  357:                return(tok);
1.1       kristaps  358:        }
                    359:        /* NOTREACHED */
                    360: }
                    361:
1.149     schwarze  362: static void
1.185   ! schwarze  363: rew_elem(struct mdoc *mdoc, int tok)
1.1       kristaps  364: {
1.185   ! schwarze  365:        struct roff_node *n;
1.1       kristaps  366:
                    367:        n = mdoc->last;
1.184     schwarze  368:        if (n->type != ROFFT_ELEM)
1.1       kristaps  369:                n = n->parent;
1.184     schwarze  370:        assert(n->type == ROFFT_ELEM);
1.1       kristaps  371:        assert(tok == n->tok);
1.149     schwarze  372:        rew_last(mdoc, n);
1.1       kristaps  373: }
                    374:
1.83      schwarze  375: /*
1.105     kristaps  376:  * Allocate a word and check whether it's punctuation or not.
                    377:  * Punctuation consists of those tokens found in mdoc_isdelim().
                    378:  */
1.150     schwarze  379: static void
1.123     schwarze  380: dword(struct mdoc *mdoc, int line, int col, const char *p,
                    381:                enum mdelim d, int may_append)
1.105     kristaps  382: {
1.131     schwarze  383:
1.150     schwarze  384:        if (d == DELIM_MAX)
1.105     kristaps  385:                d = mdoc_isdelim(p);
                    386:
1.123     schwarze  387:        if (may_append &&
1.150     schwarze  388:            ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184     schwarze  389:            d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150     schwarze  390:            mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123     schwarze  391:                mdoc_word_append(mdoc, p);
1.150     schwarze  392:                return;
1.123     schwarze  393:        }
                    394:
1.150     schwarze  395:        mdoc_word_alloc(mdoc, line, col, p);
1.105     kristaps  396:
1.108     schwarze  397:        /*
1.144     schwarze  398:         * If the word consists of a bare delimiter,
                    399:         * flag the new node accordingly,
                    400:         * unless doing so was vetoed by the invoking macro.
                    401:         * Always clear the veto, it is only valid for one word.
1.108     schwarze  402:         */
                    403:
1.144     schwarze  404:        if (d == DELIM_OPEN)
                    405:                mdoc->last->flags |= MDOC_DELIMO;
                    406:        else if (d == DELIM_CLOSE &&
                    407:            ! (mdoc->flags & MDOC_NODELIMC) &&
1.131     schwarze  408:            mdoc->last->parent->tok != MDOC_Fd)
1.119     schwarze  409:                mdoc->last->flags |= MDOC_DELIMC;
1.144     schwarze  410:        mdoc->flags &= ~MDOC_NODELIMC;
1.105     kristaps  411: }
1.1       kristaps  412:
1.150     schwarze  413: static void
1.119     schwarze  414: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1       kristaps  415: {
1.153     schwarze  416:        char            *p;
1.66      kristaps  417:        int              la;
1.1       kristaps  418:
1.150     schwarze  419:        if (buf[*pos] == '\0')
                    420:                return;
1.1       kristaps  421:
                    422:        for (;;) {
1.66      kristaps  423:                la = *pos;
1.153     schwarze  424:                if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1       kristaps  425:                        break;
1.123     schwarze  426:                dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66      kristaps  427:
                    428:                /*
                    429:                 * If we encounter end-of-sentence symbols, then trigger
                    430:                 * the double-space.
                    431:                 *
1.109     kristaps  432:                 * XXX: it's easy to allow this to propagate outward to
1.66      kristaps  433:                 * the last symbol, such that `. )' will cause the
                    434:                 * correct double-spacing.  However, (1) groff isn't
                    435:                 * smart enough to do this and (2) it would require
                    436:                 * knowing which symbols break this behaviour, for
1.109     kristaps  437:                 * example, `.  ;' shouldn't propagate the double-space.
1.66      kristaps  438:                 */
1.150     schwarze  439:
1.127     schwarze  440:                if (mandoc_eos(p, strlen(p)))
1.119     schwarze  441:                        mdoc->last->flags |= MDOC_EOS;
1.1       kristaps  442:        }
                    443: }
                    444:
                    445: /*
1.153     schwarze  446:  * Parse one word.
                    447:  * If it is a macro, call it and return 1.
                    448:  * Otherwise, allocate it and return 0.
                    449:  */
                    450: static int
                    451: macro_or_word(MACRO_PROT_ARGS, int parsed)
                    452: {
                    453:        char            *p;
1.185   ! schwarze  454:        int              ntok;
1.153     schwarze  455:
                    456:        p = buf + ppos;
                    457:        ntok = MDOC_MAX;
1.157     schwarze  458:        if (*p == '"')
1.153     schwarze  459:                p++;
1.157     schwarze  460:        else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155     schwarze  461:                ntok = lookup(mdoc, tok, line, ppos, p);
1.153     schwarze  462:
                    463:        if (ntok == MDOC_MAX) {
                    464:                dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
                    465:                    mdoc_macros[tok].flags & MDOC_JOIN);
                    466:                return(0);
                    467:        } else {
                    468:                if (mdoc_macros[tok].fp == in_line_eoln)
                    469:                        rew_elem(mdoc, tok);
                    470:                mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
                    471:                if (tok == MDOC_MAX)
                    472:                        append_delims(mdoc, line, pos, buf);
                    473:                return(1);
                    474:        }
                    475: }
                    476:
                    477: /*
1.131     schwarze  478:  * Close out block partial/full explicit.
1.1       kristaps  479:  */
1.151     schwarze  480: static void
1.1       kristaps  481: blk_exp_close(MACRO_PROT_ARGS)
                    482: {
1.185   ! schwarze  483:        struct roff_node *body;         /* Our own body. */
        !           484:        struct roff_node *endbody;      /* Our own end marker. */
        !           485:        struct roff_node *itblk;        /* An It block starting later. */
        !           486:        struct roff_node *later;        /* A sub-block starting later. */
        !           487:        struct roff_node *n;            /* Search back to our block. */
1.83      schwarze  488:
1.171     schwarze  489:        int              j, lastarg, maxargs, nl;
1.55      kristaps  490:        enum margserr    ac;
1.185   ! schwarze  491:        int              atok, ntok;
1.1       kristaps  492:        char            *p;
                    493:
1.119     schwarze  494:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  495:
1.1       kristaps  496:        switch (tok) {
1.131     schwarze  497:        case MDOC_Ec:
1.1       kristaps  498:                maxargs = 1;
                    499:                break;
1.131     schwarze  500:        case MDOC_Ek:
1.125     schwarze  501:                mdoc->flags &= ~MDOC_KEEP;
1.151     schwarze  502:                /* FALLTHROUGH */
1.1       kristaps  503:        default:
                    504:                maxargs = 0;
                    505:                break;
                    506:        }
                    507:
1.83      schwarze  508:        /*
                    509:         * Search backwards for beginnings of blocks,
                    510:         * both of our own and of pending sub-blocks.
                    511:         */
1.151     schwarze  512:
1.83      schwarze  513:        atok = rew_alt(tok);
1.171     schwarze  514:        body = endbody = itblk = later = NULL;
1.119     schwarze  515:        for (n = mdoc->last; n; n = n->parent) {
1.183     schwarze  516:                if (n->flags & MDOC_ENDED) {
                    517:                        if ( ! (n->flags & MDOC_VALID))
                    518:                                n->flags |= MDOC_BROKEN;
1.83      schwarze  519:                        continue;
1.183     schwarze  520:                }
1.83      schwarze  521:
                    522:                /* Remember the start of our own body. */
1.151     schwarze  523:
1.184     schwarze  524:                if (n->type == ROFFT_BODY && atok == n->tok) {
1.175     schwarze  525:                        if (n->end == ENDBODY_NOT)
1.83      schwarze  526:                                body = n;
                    527:                        continue;
                    528:                }
                    529:
1.184     schwarze  530:                if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83      schwarze  531:                        continue;
1.160     schwarze  532:
                    533:                if (n->tok == MDOC_It) {
1.171     schwarze  534:                        itblk = n;
1.160     schwarze  535:                        continue;
                    536:                }
                    537:
1.83      schwarze  538:                if (atok == n->tok) {
                    539:                        assert(body);
                    540:
                    541:                        /*
                    542:                         * Found the start of our own block.
                    543:                         * When there is no pending sub block,
                    544:                         * just proceed to closing out.
                    545:                         */
1.151     schwarze  546:
1.160     schwarze  547:                        if (later == NULL ||
1.171     schwarze  548:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  549:                                break;
                    550:
1.131     schwarze  551:                        /*
1.167     schwarze  552:                         * When there is a pending sub block, postpone
                    553:                         * closing out the current block until the
                    554:                         * rew_pending() closing out the sub-block.
1.83      schwarze  555:                         * Mark the place where the formatting - but not
                    556:                         * the scope - of the current block ends.
                    557:                         */
1.151     schwarze  558:
1.183     schwarze  559:                        mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
                    560:                            line, ppos, "%s breaks %s",
                    561:                            mdoc_macronames[atok],
                    562:                            mdoc_macronames[later->tok]);
                    563:
1.166     schwarze  564:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150     schwarze  565:                            atok, body, ENDBODY_SPACE);
1.151     schwarze  566:
1.183     schwarze  567:                        if (tok == MDOC_El)
                    568:                                itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
                    569:
1.151     schwarze  570:                        /*
                    571:                         * If a block closing macro taking arguments
                    572:                         * breaks another block, put the arguments
1.166     schwarze  573:                         * into the end marker.
1.151     schwarze  574:                         */
                    575:
1.166     schwarze  576:                        if (maxargs)
1.148     schwarze  577:                                mdoc->next = MDOC_NEXT_CHILD;
1.83      schwarze  578:                        break;
1.182     schwarze  579:                }
                    580:
                    581:                /* Explicit blocks close out description lines. */
                    582:
                    583:                if (n->tok == MDOC_Nd) {
                    584:                        rew_last(mdoc, n);
                    585:                        continue;
1.83      schwarze  586:                }
                    587:
1.183     schwarze  588:                /* Breaking an open sub block. */
1.151     schwarze  589:
1.183     schwarze  590:                n->flags |= MDOC_BROKEN;
                    591:                if (later == NULL)
1.83      schwarze  592:                        later = n;
                    593:        }
1.166     schwarze  594:
                    595:        if (body == NULL) {
                    596:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
                    597:                    line, ppos, mdoc_macronames[tok]);
                    598:                if (maxargs && endbody == NULL) {
                    599:                        /*
                    600:                         * Stray .Ec without previous .Eo:
                    601:                         * Break the output line, keep the arguments.
                    602:                         */
                    603:                        mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
                    604:                        rew_elem(mdoc, MDOC_br);
                    605:                }
                    606:        } else if (endbody == NULL) {
                    607:                rew_last(mdoc, body);
                    608:                if (maxargs)
                    609:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    610:        }
1.83      schwarze  611:
1.150     schwarze  612:        if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
                    613:                if (buf[*pos] != '\0')
1.136     schwarze  614:                        mandoc_vmsg(MANDOCERR_ARG_SKIP,
                    615:                            mdoc->parse, line, ppos,
                    616:                            "%s %s", mdoc_macronames[tok],
                    617:                            buf + *pos);
1.171     schwarze  618:                if (endbody == NULL && n != NULL)
1.167     schwarze  619:                        rew_pending(mdoc, n);
1.151     schwarze  620:                return;
1.1       kristaps  621:        }
                    622:
1.166     schwarze  623:        if (endbody != NULL)
                    624:                n = endbody;
1.148     schwarze  625:        for (j = 0; ; j++) {
1.1       kristaps  626:                lastarg = *pos;
                    627:
1.166     schwarze  628:                if (j == maxargs && n != NULL) {
                    629:                        rew_pending(mdoc, n);
                    630:                        n = NULL;
1.1       kristaps  631:                }
                    632:
1.119     schwarze  633:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  634:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  635:                        break;
                    636:
1.155     schwarze  637:                ntok = ac == ARGS_QWORD ? MDOC_MAX :
                    638:                    lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  639:
1.150     schwarze  640:                if (ntok == MDOC_MAX) {
                    641:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
                    642:                            MDOC_JOIN & mdoc_macros[tok].flags);
1.54      kristaps  643:                        continue;
                    644:                }
1.1       kristaps  645:
1.166     schwarze  646:                if (n != NULL) {
                    647:                        rew_pending(mdoc, n);
                    648:                        n = NULL;
1.54      kristaps  649:                }
1.122     schwarze  650:                mdoc->flags &= ~MDOC_NEWLINE;
1.151     schwarze  651:                mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  652:                break;
1.1       kristaps  653:        }
                    654:
1.166     schwarze  655:        if (n != NULL)
                    656:                rew_pending(mdoc, n);
1.150     schwarze  657:        if (nl)
                    658:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  659: }
                    660:
1.151     schwarze  661: static void
1.1       kristaps  662: in_line(MACRO_PROT_ARGS)
                    663: {
1.144     schwarze  664:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.185   ! schwarze  665:        int              ntok;
1.55      kristaps  666:        enum margserr    ac;
1.67      schwarze  667:        enum mdelim      d;
1.53      kristaps  668:        struct mdoc_arg *arg;
                    669:        char            *p;
1.1       kristaps  670:
1.119     schwarze  671:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  672:
1.4       kristaps  673:        /*
                    674:         * Whether we allow ignored elements (those without content,
                    675:         * usually because of reserved words) to squeak by.
                    676:         */
1.45      kristaps  677:
1.4       kristaps  678:        switch (tok) {
1.131     schwarze  679:        case MDOC_An:
1.26      kristaps  680:                /* FALLTHROUGH */
1.131     schwarze  681:        case MDOC_Ar:
1.4       kristaps  682:                /* FALLTHROUGH */
1.131     schwarze  683:        case MDOC_Fl:
1.4       kristaps  684:                /* FALLTHROUGH */
1.131     schwarze  685:        case MDOC_Mt:
1.12      kristaps  686:                /* FALLTHROUGH */
1.131     schwarze  687:        case MDOC_Nm:
1.26      kristaps  688:                /* FALLTHROUGH */
1.131     schwarze  689:        case MDOC_Pa:
1.4       kristaps  690:                nc = 1;
                    691:                break;
                    692:        default:
                    693:                nc = 0;
                    694:                break;
                    695:        }
                    696:
1.152     schwarze  697:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  698:
1.144     schwarze  699:        d = DELIM_NONE;
                    700:        firstarg = 1;
1.142     schwarze  701:        mayopen = 1;
1.70      kristaps  702:        for (cnt = scope = 0;; ) {
1.1       kristaps  703:                la = *pos;
1.119     schwarze  704:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  705:
1.144     schwarze  706:                /*
                    707:                 * At the end of a macro line,
                    708:                 * opening delimiters do not suppress spacing.
                    709:                 */
                    710:
                    711:                if (ac == ARGS_EOLN) {
                    712:                        if (d == DELIM_OPEN)
                    713:                                mdoc->last->flags &= ~MDOC_DELIMO;
1.1       kristaps  714:                        break;
1.144     schwarze  715:                }
                    716:
                    717:                /*
                    718:                 * The rest of the macro line is only punctuation,
                    719:                 * to be handled by append_delims().
                    720:                 * If there were no other arguments,
                    721:                 * do not allow the first one to suppress spacing,
                    722:                 * even if it turns out to be a closing one.
                    723:                 */
                    724:
                    725:                if (ac == ARGS_PUNCT) {
1.176     schwarze  726:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  727:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  728:                        break;
1.144     schwarze  729:                }
1.1       kristaps  730:
1.145     schwarze  731:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155     schwarze  732:                    MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1       kristaps  733:
1.131     schwarze  734:                /*
1.4       kristaps  735:                 * In this case, we've located a submacro and must
                    736:                 * execute it.  Close out scope, if open.  If no
                    737:                 * elements have been generated, either create one (nc)
                    738:                 * or raise a warning.
                    739:                 */
1.1       kristaps  740:
1.150     schwarze  741:                if (ntok != MDOC_MAX) {
1.149     schwarze  742:                        if (scope)
                    743:                                rew_elem(mdoc, tok);
1.150     schwarze  744:                        if (nc && ! cnt) {
                    745:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  746:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  747:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  748:                                mdoc_argv_free(arg);
1.135     schwarze  749:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    750:                                    mdoc->parse, line, ppos,
                    751:                                    mdoc_macronames[tok]);
1.7       kristaps  752:                        }
1.151     schwarze  753:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150     schwarze  754:                        if (nl)
                    755:                                append_delims(mdoc, line, pos, buf);
1.151     schwarze  756:                        return;
1.131     schwarze  757:                }
1.1       kristaps  758:
1.131     schwarze  759:                /*
1.4       kristaps  760:                 * Non-quote-enclosed punctuation.  Set up our scope, if
                    761:                 * a word; rewind the scope, if a delimiter; then append
1.131     schwarze  762:                 * the word.
1.4       kristaps  763:                 */
1.1       kristaps  764:
1.150     schwarze  765:                d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3       kristaps  766:
1.70      kristaps  767:                if (DELIM_NONE != d) {
                    768:                        /*
                    769:                         * If we encounter closing punctuation, no word
1.144     schwarze  770:                         * has been emitted, no scope is open, and we're
1.70      kristaps  771:                         * allowed to have an empty element, then start
1.142     schwarze  772:                         * a new scope.
1.70      kristaps  773:                         */
1.142     schwarze  774:                        if ((d == DELIM_CLOSE ||
                    775:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  776:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  777:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  778:                                scope = 1;
1.142     schwarze  779:                                cnt++;
1.150     schwarze  780:                                if (tok == MDOC_Nm)
1.142     schwarze  781:                                        mayopen = 0;
1.70      kristaps  782:                        }
                    783:                        /*
                    784:                         * Close out our scope, if one is open, before
                    785:                         * any punctuation.
                    786:                         */
1.149     schwarze  787:                        if (scope)
                    788:                                rew_elem(mdoc, tok);
1.70      kristaps  789:                        scope = 0;
1.145     schwarze  790:                        if (tok == MDOC_Fn)
                    791:                                mayopen = 0;
1.142     schwarze  792:                } else if (mayopen && !scope) {
1.150     schwarze  793:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  794:                        scope = 1;
1.142     schwarze  795:                        cnt++;
1.1       kristaps  796:                }
1.105     kristaps  797:
1.150     schwarze  798:                dword(mdoc, line, la, p, d,
                    799:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.39      kristaps  800:
                    801:                /*
1.144     schwarze  802:                 * If the first argument is a closing delimiter,
                    803:                 * do not suppress spacing before it.
                    804:                 */
                    805:
                    806:                if (firstarg && d == DELIM_CLOSE && !nc)
                    807:                        mdoc->last->flags &= ~MDOC_DELIMC;
                    808:                firstarg = 0;
                    809:
                    810:                /*
1.39      kristaps  811:                 * `Fl' macros have their scope re-opened with each new
                    812:                 * word so that the `-' can be added to each one without
                    813:                 * having to parse out spaces.
                    814:                 */
1.150     schwarze  815:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  816:                        rew_elem(mdoc, tok);
1.70      kristaps  817:                        scope = 0;
1.39      kristaps  818:                }
1.1       kristaps  819:        }
                    820:
1.149     schwarze  821:        if (scope)
                    822:                rew_elem(mdoc, tok);
1.4       kristaps  823:
                    824:        /*
                    825:         * If no elements have been collected and we're allowed to have
                    826:         * empties (nc), open a scope and close it out.  Otherwise,
                    827:         * raise a warning.
                    828:         */
1.45      kristaps  829:
1.150     schwarze  830:        if ( ! cnt) {
                    831:                if (nc) {
                    832:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    833:                        rew_last(mdoc, mdoc->last);
                    834:                } else {
                    835:                        mdoc_argv_free(arg);
                    836:                        mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    837:                            line, ppos, mdoc_macronames[tok]);
                    838:                }
1.7       kristaps  839:        }
1.150     schwarze  840:        if (nl)
                    841:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  842: }
                    843:
1.151     schwarze  844: static void
1.1       kristaps  845: blk_full(MACRO_PROT_ARGS)
                    846: {
1.153     schwarze  847:        int               la, nl, parsed;
1.1       kristaps  848:        struct mdoc_arg  *arg;
1.185   ! schwarze  849:        struct roff_node *blk; /* Our own or a broken block. */
        !           850:        struct roff_node *head; /* Our own head. */
        !           851:        struct roff_node *body; /* Our own body. */
        !           852:        struct roff_node *n;
1.59      kristaps  853:        enum margserr     ac, lac;
1.1       kristaps  854:        char             *p;
                    855:
1.119     schwarze  856:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  857:
1.177     schwarze  858:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    859:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    860:                    line, ppos, mdoc_macronames[tok]);
                    861:                return;
                    862:        }
                    863:
1.171     schwarze  864:        if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
                    865:
                    866:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    867:
                    868:                blk = NULL;
                    869:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze  870:                        if (n->flags & MDOC_ENDED) {
                    871:                                if ( ! (n->flags & MDOC_VALID))
                    872:                                        n->flags |= MDOC_BROKEN;
                    873:                                continue;
                    874:                        }
1.184     schwarze  875:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  876:                                continue;
1.183     schwarze  877:
1.171     schwarze  878:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    879:                                if (blk != NULL) {
                    880:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    881:                                            mdoc->parse, line, ppos,
                    882:                                            "It breaks %s",
                    883:                                            mdoc_macronames[blk->tok]);
                    884:                                        rew_pending(mdoc, blk);
                    885:                                }
                    886:                                break;
                    887:                        }
                    888:
                    889:                        if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    890:                                switch (tok) {
                    891:                                case MDOC_Sh:
                    892:                                        /* FALLTHROUGH */
                    893:                                case MDOC_Ss:
                    894:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    895:                                            mdoc->parse, line, ppos,
                    896:                                            "%s breaks %s",
                    897:                                            mdoc_macronames[tok],
                    898:                                            mdoc_macronames[n->tok]);
                    899:                                        rew_pending(mdoc, n);
1.180     schwarze  900:                                        n = mdoc->last;
1.171     schwarze  901:                                        continue;
                    902:                                case MDOC_It:
                    903:                                        /* Delay in case it's astray. */
                    904:                                        blk = n;
                    905:                                        continue;
                    906:                                default:
                    907:                                        break;
                    908:                                }
                    909:                                break;
                    910:                        }
                    911:
                    912:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze  913:
1.171     schwarze  914:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                    915:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                    916:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze  917:                                break;
1.171     schwarze  918:
                    919:                        /* Item breaking an explicit block. */
                    920:
                    921:                        if (blk != NULL) {
                    922:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    923:                                    mdoc->parse, line, ppos,
                    924:                                    "It breaks %s",
                    925:                                    mdoc_macronames[blk->tok]);
                    926:                                rew_pending(mdoc, blk);
1.172     schwarze  927:                                blk = NULL;
1.171     schwarze  928:                        }
                    929:
                    930:                        /* Close out prior implicit scopes. */
                    931:
                    932:                        rew_last(mdoc, n);
                    933:                }
                    934:
                    935:                /* Skip items outside lists. */
                    936:
                    937:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138     schwarze  938:                        mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
                    939:                            line, ppos, "It %s", buf + *pos);
1.150     schwarze  940:                        mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149     schwarze  941:                        rew_elem(mdoc, MDOC_br);
1.151     schwarze  942:                        return;
1.138     schwarze  943:                }
1.1       kristaps  944:        }
                    945:
1.45      kristaps  946:        /*
1.109     kristaps  947:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps  948:         * macro openings.  Implicit ones first close out prior scope
                    949:         * (seen above).  Delay opening the head until necessary to
                    950:         * allow leading punctuation to print.  Special consideration
                    951:         * for `It -column', which has phrase-part syntax instead of
                    952:         * regular child nodes.
                    953:         */
                    954:
1.152     schwarze  955:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze  956:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps  957:        head = body = NULL;
1.115     schwarze  958:
                    959:        /*
                    960:         * Exception: Heads of `It' macros in `-diag' lists are not
                    961:         * parsed, even though `It' macros in general are parsed.
                    962:         */
1.151     schwarze  963:
1.153     schwarze  964:        parsed = tok != MDOC_It ||
                    965:            mdoc->last->parent->tok != MDOC_Bl ||
                    966:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps  967:
1.45      kristaps  968:        /*
                    969:         * The `Nd' macro has all arguments in its body: it's a hybrid
                    970:         * of block partial-explicit and full-implicit.  Stupid.
                    971:         */
1.19      kristaps  972:
1.150     schwarze  973:        if (tok == MDOC_Nd) {
                    974:                head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze  975:                rew_last(mdoc, head);
1.150     schwarze  976:                body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze  977:        }
                    978:
1.150     schwarze  979:        if (tok == MDOC_Bk)
1.123     schwarze  980:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps  981:
1.150     schwarze  982:        ac = ARGS_PEND;
                    983:        for (;;) {
1.45      kristaps  984:                la = *pos;
1.150     schwarze  985:                lac = ac;
1.119     schwarze  986:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  987:                if (ac == ARGS_EOLN) {
                    988:                        if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75      kristaps  989:                                break;
                    990:                        /*
                    991:                         * This is necessary: if the last token on a
                    992:                         * line is a `Ta' or tab, then we'll get
                    993:                         * ARGS_EOLN, so we must be smart enough to
                    994:                         * reopen our scope if the last parse was a
                    995:                         * phrase or partial phrase.
                    996:                         */
1.167     schwarze  997:                        if (body != NULL)
                    998:                                rew_last(mdoc, body);
1.150     schwarze  999:                        body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1000:                        break;
1.75      kristaps 1001:                }
1.174     schwarze 1002:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
                   1003:                        mandoc_vmsg(MANDOCERR_ARG_EXCESS,
                   1004:                            mdoc->parse, line, la, "%s ... %s",
                   1005:                            mdoc_macronames[tok], buf + la);
                   1006:                        break;
                   1007:                }
1.173     schwarze 1008:                if (tok == MDOC_Rs) {
                   1009:                        mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
                   1010:                            line, la, "Rs %s", buf + la);
                   1011:                        break;
                   1012:                }
                   1013:                if (ac == ARGS_PUNCT)
                   1014:                        break;
1.45      kristaps 1015:
1.131     schwarze 1016:                /*
1.73      kristaps 1017:                 * Emit leading punctuation (i.e., punctuation before
1.184     schwarze 1018:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1019:                 */
1.45      kristaps 1020:
1.150     schwarze 1021:                if (head == NULL &&
                   1022:                    ac != ARGS_PEND &&
                   1023:                    ac != ARGS_PHRASE &&
                   1024:                    ac != ARGS_PPHRASE &&
                   1025:                    ac != ARGS_QWORD &&
                   1026:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1027:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1028:                        continue;
                   1029:                }
                   1030:
1.74      kristaps 1031:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1032:
1.150     schwarze 1033:                if (head == NULL)
                   1034:                        head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1035:
1.150     schwarze 1036:                if (ac == ARGS_PHRASE ||
                   1037:                    ac == ARGS_PEND ||
                   1038:                    ac == ARGS_PPHRASE) {
1.151     schwarze 1039:
1.73      kristaps 1040:                        /*
1.74      kristaps 1041:                         * If we haven't opened a body yet, rewind the
                   1042:                         * head; if we have, rewind that instead.
                   1043:                         */
                   1044:
1.167     schwarze 1045:                        rew_last(mdoc, body == NULL ? head : body);
1.150     schwarze 1046:                        body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1047:
                   1048:                        /*
1.73      kristaps 1049:                         * Process phrases: set whether we're in a
                   1050:                         * partial-phrase (this effects line handling)
                   1051:                         * then call down into the phrase parser.
                   1052:                         */
1.74      kristaps 1053:
1.150     schwarze 1054:                        if (ac == ARGS_PPHRASE)
1.119     schwarze 1055:                                mdoc->flags |= MDOC_PPHRASE;
1.150     schwarze 1056:                        if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119     schwarze 1057:                                mdoc->flags |= MDOC_PPHRASE;
1.154     schwarze 1058:                        parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119     schwarze 1059:                        mdoc->flags &= ~MDOC_PPHRASE;
1.1       kristaps 1060:                        continue;
                   1061:                }
                   1062:
1.153     schwarze 1063:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1064:                        break;
1.45      kristaps 1065:        }
1.1       kristaps 1066:
1.165     schwarze 1067:        if (blk->flags & MDOC_VALID)
                   1068:                return;
1.150     schwarze 1069:        if (head == NULL)
                   1070:                head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1071:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1072:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1073:        if (body != NULL)
1.77      kristaps 1074:                goto out;
1.19      kristaps 1075:
1.47      kristaps 1076:        /*
1.49      kristaps 1077:         * If there is an open (i.e., unvalidated) sub-block requiring
                   1078:         * explicit close-out, postpone switching the current block from
1.167     schwarze 1079:         * head to body until the rew_pending() call closing out that
1.49      kristaps 1080:         * sub-block.
1.47      kristaps 1081:         */
1.119     schwarze 1082:        for (n = mdoc->last; n && n != head; n = n->parent) {
1.183     schwarze 1083:                if (n->flags & MDOC_ENDED) {
                   1084:                        if ( ! (n->flags & MDOC_VALID))
                   1085:                                n->flags |= MDOC_BROKEN;
                   1086:                        continue;
                   1087:                }
1.184     schwarze 1088:                if (n->type == ROFFT_BLOCK &&
1.183     schwarze 1089:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                   1090:                        n->flags = MDOC_BROKEN;
                   1091:                        head->flags = MDOC_ENDED;
1.47      kristaps 1092:                }
                   1093:        }
1.183     schwarze 1094:        if (head->flags & MDOC_ENDED)
                   1095:                return;
1.47      kristaps 1096:
1.45      kristaps 1097:        /* Close out scopes to remain in a consistent state. */
                   1098:
1.167     schwarze 1099:        rew_last(mdoc, head);
                   1100:        body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1101: out:
1.150     schwarze 1102:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1103:                rew_last(mdoc, body);
                   1104:                rew_last(mdoc, blk);
1.150     schwarze 1105:                mdoc->flags &= ~MDOC_FREECOL;
                   1106:        }
1.1       kristaps 1107: }
                   1108:
1.151     schwarze 1109: static void
1.1       kristaps 1110: blk_part_imp(MACRO_PROT_ARGS)
                   1111: {
1.63      kristaps 1112:        int               la, nl;
1.55      kristaps 1113:        enum margserr     ac;
1.1       kristaps 1114:        char             *p;
1.185   ! schwarze 1115:        struct roff_node *blk; /* saved block context */
        !          1116:        struct roff_node *body; /* saved body context */
        !          1117:        struct roff_node *n;
1.1       kristaps 1118:
1.119     schwarze 1119:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1120:
1.43      kristaps 1121:        /*
                   1122:         * A macro that spans to the end of the line.  This is generally
                   1123:         * (but not necessarily) called as the first macro.  The block
                   1124:         * has a head as the immediate child, which is always empty,
                   1125:         * followed by zero or more opening punctuation nodes, then the
                   1126:         * body (which may be empty, depending on the macro), then zero
                   1127:         * or more closing punctuation nodes.
                   1128:         */
1.32      kristaps 1129:
1.150     schwarze 1130:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162     schwarze 1131:        rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1132:
1.43      kristaps 1133:        /*
                   1134:         * Open the body scope "on-demand", that is, after we've
                   1135:         * processed all our the leading delimiters (open parenthesis,
                   1136:         * etc.).
                   1137:         */
1.1       kristaps 1138:
1.43      kristaps 1139:        for (body = NULL; ; ) {
1.32      kristaps 1140:                la = *pos;
1.119     schwarze 1141:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1142:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1143:                        break;
                   1144:
1.150     schwarze 1145:                if (body == NULL && ac != ARGS_QWORD &&
                   1146:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1147:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1148:                        continue;
1.123     schwarze 1149:                }
1.1       kristaps 1150:
1.150     schwarze 1151:                if (body == NULL)
                   1152:                        body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1153:
1.153     schwarze 1154:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1155:                        break;
1.1       kristaps 1156:        }
1.150     schwarze 1157:        if (body == NULL)
                   1158:                body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1159:
1.83      schwarze 1160:        /*
                   1161:         * If there is an open sub-block requiring explicit close-out,
1.167     schwarze 1162:         * postpone closing out the current block until the
                   1163:         * rew_pending() call closing out the sub-block.
1.83      schwarze 1164:         */
1.151     schwarze 1165:
1.119     schwarze 1166:        for (n = mdoc->last; n && n != body && n != blk->parent;
1.131     schwarze 1167:             n = n->parent) {
1.183     schwarze 1168:                if (n->flags & MDOC_ENDED) {
                   1169:                        if ( ! (n->flags & MDOC_VALID))
                   1170:                                n->flags |= MDOC_BROKEN;
                   1171:                        continue;
                   1172:                }
1.184     schwarze 1173:                if (n->type == ROFFT_BLOCK &&
1.183     schwarze 1174:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                   1175:                        n->flags |= MDOC_BROKEN;
                   1176:                        if ( ! (body->flags & MDOC_ENDED)) {
                   1177:                                mandoc_vmsg(MANDOCERR_BLK_NEST,
                   1178:                                    mdoc->parse, line, ppos,
                   1179:                                    "%s breaks %s", mdoc_macronames[tok],
                   1180:                                    mdoc_macronames[n->tok]);
                   1181:                                mdoc_endbody_alloc(mdoc, line, ppos,
                   1182:                                    tok, body, ENDBODY_NOSPACE);
                   1183:                        }
1.83      schwarze 1184:                }
                   1185:        }
1.134     schwarze 1186:        assert(n == body);
1.183     schwarze 1187:        if (body->flags & MDOC_ENDED)
                   1188:                return;
                   1189:
1.164     schwarze 1190:        rew_last(mdoc, body);
1.150     schwarze 1191:        if (nl)
                   1192:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1193:        rew_pending(mdoc, blk);
1.117     schwarze 1194:
                   1195:        /* Move trailing .Ns out of scope. */
                   1196:
                   1197:        for (n = body->child; n && n->next; n = n->next)
                   1198:                /* Do nothing. */ ;
1.150     schwarze 1199:        if (n && n->tok == MDOC_Ns)
1.119     schwarze 1200:                mdoc_node_relink(mdoc, n);
1.1       kristaps 1201: }
                   1202:
1.151     schwarze 1203: static void
1.1       kristaps 1204: blk_part_exp(MACRO_PROT_ARGS)
                   1205: {
1.60      kristaps 1206:        int               la, nl;
1.55      kristaps 1207:        enum margserr     ac;
1.185   ! schwarze 1208:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1209:        char             *p;
                   1210:
1.119     schwarze 1211:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1212:
1.43      kristaps 1213:        /*
                   1214:         * The opening of an explicit macro having zero or more leading
                   1215:         * punctuation nodes; a head with optional single element (the
                   1216:         * case of `Eo'); and a body that may be empty.
                   1217:         */
1.32      kristaps 1218:
1.150     schwarze 1219:        mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163     schwarze 1220:        head = NULL;
                   1221:        for (;;) {
1.32      kristaps 1222:                la = *pos;
1.119     schwarze 1223:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1224:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1225:                        break;
1.43      kristaps 1226:
                   1227:                /* Flush out leading punctuation. */
                   1228:
1.150     schwarze 1229:                if (head == NULL && ac != ARGS_QWORD &&
                   1230:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1231:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1232:                        continue;
1.123     schwarze 1233:                }
1.43      kristaps 1234:
1.150     schwarze 1235:                if (head == NULL) {
                   1236:                        head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1237:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1238:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1239:                        rew_last(mdoc, head);
                   1240:                        mdoc_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1241:                        if (tok == MDOC_Eo)
1.43      kristaps 1242:                                continue;
1.1       kristaps 1243:                }
1.43      kristaps 1244:
1.153     schwarze 1245:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1246:                        break;
1.1       kristaps 1247:        }
                   1248:
1.43      kristaps 1249:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1250:
1.163     schwarze 1251:        if (head == NULL) {
                   1252:                rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150     schwarze 1253:                mdoc_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1254:        }
1.150     schwarze 1255:        if (nl)
                   1256:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1257: }
                   1258:
1.151     schwarze 1259: static void
1.1       kristaps 1260: in_line_argn(MACRO_PROT_ARGS)
                   1261: {
1.53      kristaps 1262:        struct mdoc_arg *arg;
                   1263:        char            *p;
1.181     schwarze 1264:        enum margserr    ac;
1.185   ! schwarze 1265:        int              ntok;
1.181     schwarze 1266:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1267:        int              la, maxargs, nl;
1.1       kristaps 1268:
1.156     schwarze 1269:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1270:
1.46      kristaps 1271:        /*
                   1272:         * A line macro that has a fixed number of arguments (maxargs).
                   1273:         * Only open the scope once the first non-leading-punctuation is
                   1274:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1275:         * keep it open until the maximum number of arguments are
                   1276:         * exhausted.
                   1277:         */
1.1       kristaps 1278:
                   1279:        switch (tok) {
1.131     schwarze 1280:        case MDOC_Ap:
1.1       kristaps 1281:                /* FALLTHROUGH */
1.131     schwarze 1282:        case MDOC_Ns:
1.1       kristaps 1283:                /* FALLTHROUGH */
1.131     schwarze 1284:        case MDOC_Ux:
1.1       kristaps 1285:                maxargs = 0;
                   1286:                break;
1.131     schwarze 1287:        case MDOC_Bx:
1.101     kristaps 1288:                /* FALLTHROUGH */
1.132     schwarze 1289:        case MDOC_Es:
                   1290:                /* FALLTHROUGH */
1.131     schwarze 1291:        case MDOC_Xr:
1.42      kristaps 1292:                maxargs = 2;
                   1293:                break;
1.1       kristaps 1294:        default:
                   1295:                maxargs = 1;
                   1296:                break;
                   1297:        }
                   1298:
1.152     schwarze 1299:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1300:
1.181     schwarze 1301:        state = -1;
1.156     schwarze 1302:        p = NULL;
                   1303:        for (;;) {
1.32      kristaps 1304:                la = *pos;
1.119     schwarze 1305:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1306:
                   1307:                if (ac == ARGS_WORD && state == -1 &&
                   1308:                    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
                   1309:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1310:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1311:                        continue;
                   1312:                }
                   1313:
                   1314:                if (state == -1 && tok != MDOC_In &&
                   1315:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1316:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1317:                        state = 0;
                   1318:                }
                   1319:
1.156     schwarze 1320:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1321:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1322:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1323:                                    mdoc->parse, line, ppos, "Pf %s",
                   1324:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1325:                        break;
1.156     schwarze 1326:                }
1.1       kristaps 1327:
1.181     schwarze 1328:                if (state == maxargs) {
1.149     schwarze 1329:                        rew_elem(mdoc, tok);
1.181     schwarze 1330:                        state = -2;
1.46      kristaps 1331:                }
                   1332:
1.181     schwarze 1333:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.156     schwarze 1334:                    MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1335:
1.150     schwarze 1336:                if (ntok != MDOC_MAX) {
1.181     schwarze 1337:                        if (state >= 0) {
1.149     schwarze 1338:                                rew_elem(mdoc, tok);
1.181     schwarze 1339:                                state = -2;
                   1340:                        }
1.151     schwarze 1341:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1       kristaps 1342:                        break;
                   1343:                }
                   1344:
1.181     schwarze 1345:                if (ac == ARGS_QWORD ||
                   1346:                    mdoc_macros[tok].flags & MDOC_IGNDELIM ||
                   1347:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1348:                        if (state == -1) {
                   1349:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1350:                                state = 1;
                   1351:                        } else if (state >= 0)
                   1352:                                state++;
                   1353:                } else if (state >= 0) {
1.149     schwarze 1354:                        rew_elem(mdoc, tok);
1.181     schwarze 1355:                        state = -2;
1.1       kristaps 1356:                }
1.42      kristaps 1357:
1.150     schwarze 1358:                dword(mdoc, line, la, p, DELIM_MAX,
                   1359:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.1       kristaps 1360:        }
                   1361:
1.181     schwarze 1362:        if (state == -1) {
                   1363:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                   1364:                    line, ppos, mdoc_macronames[tok]);
                   1365:                return;
1.156     schwarze 1366:        }
1.181     schwarze 1367:
                   1368:        if (state == 0 && tok == MDOC_Pf)
                   1369:                append_delims(mdoc, line, pos, buf);
                   1370:        if (state >= 0)
1.149     schwarze 1371:                rew_elem(mdoc, tok);
1.150     schwarze 1372:        if (nl)
                   1373:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1374: }
                   1375:
1.151     schwarze 1376: static void
1.1       kristaps 1377: in_line_eoln(MACRO_PROT_ARGS)
                   1378: {
1.185   ! schwarze 1379:        struct roff_node        *n;
1.170     schwarze 1380:        struct mdoc_arg         *arg;
1.1       kristaps 1381:
1.170     schwarze 1382:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1383:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1384:                n = mdoc->last;
                   1385:                if (mdoc->next == MDOC_NEXT_SIBLING)
                   1386:                        n = n->parent;
                   1387:                if (n->tok == MDOC_Nm)
                   1388:                        rew_last(mdoc, mdoc->last->parent);
1.178     schwarze 1389:        }
                   1390:
1.179     schwarze 1391:        if (buf[*pos] == '\0' &&
                   1392:            (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178     schwarze 1393:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179     schwarze 1394:                    line, ppos, mdoc_macronames[tok]);
1.178     schwarze 1395:                return;
1.170     schwarze 1396:        }
1.90      schwarze 1397:
1.152     schwarze 1398:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1399:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1400:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1401:                return;
                   1402:        rew_elem(mdoc, tok);
                   1403: }
                   1404:
                   1405: /*
                   1406:  * The simplest argument parser available: Parse the remaining
                   1407:  * words until the end of the phrase or line and return 0
                   1408:  * or until the next macro, call that macro, and return 1.
                   1409:  */
                   1410: static int
1.185   ! schwarze 1411: parse_rest(struct mdoc *mdoc, int tok, int line, int *pos, char *buf)
1.154     schwarze 1412: {
                   1413:        int              la;
1.1       kristaps 1414:
                   1415:        for (;;) {
                   1416:                la = *pos;
1.153     schwarze 1417:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154     schwarze 1418:                        return(0);
1.153     schwarze 1419:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154     schwarze 1420:                        return(1);
1.1       kristaps 1421:        }
                   1422: }
                   1423:
1.151     schwarze 1424: static void
1.41      kristaps 1425: ctx_synopsis(MACRO_PROT_ARGS)
                   1426: {
1.60      kristaps 1427:
1.151     schwarze 1428:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1429:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1430:        else if (tok == MDOC_Nm)
                   1431:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1432:        else {
                   1433:                assert(tok == MDOC_Vt);
                   1434:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1435:        }
1.1       kristaps 1436: }
                   1437:
1.24      kristaps 1438: /*
                   1439:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1440:  * They're unusual because they're basically free-form text until a
                   1441:  * macro is encountered.
                   1442:  */
1.151     schwarze 1443: static void
1.75      kristaps 1444: phrase_ta(MACRO_PROT_ARGS)
                   1445: {
1.185   ! schwarze 1446:        struct roff_node *body, *n;
1.75      kristaps 1447:
1.121     schwarze 1448:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1449:
1.167     schwarze 1450:        body = NULL;
                   1451:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze 1452:                if (n->flags & MDOC_ENDED)
1.167     schwarze 1453:                        continue;
1.184     schwarze 1454:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1455:                        body = n;
                   1456:                if (n->tok == MDOC_Bl)
                   1457:                        break;
                   1458:        }
                   1459:
1.151     schwarze 1460:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1461:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1462:                    line, ppos, "Ta");
1.151     schwarze 1463:                return;
1.121     schwarze 1464:        }
1.75      kristaps 1465:
1.121     schwarze 1466:        /* Advance to the next column. */
1.150     schwarze 1467:
1.167     schwarze 1468:        rew_last(mdoc, body);
1.150     schwarze 1469:        mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154     schwarze 1470:        parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75      kristaps 1471: }

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