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Annotation of mandoc/mdoc_macro.c, Revision 1.190

1.190   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.189 2015/04/18 16:06:40 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"
1.190   ! schwarze   33: #include "roff_int.h"
1.1       kristaps   34: #include "libmdoc.h"
                     35:
1.151     schwarze   36: static void            blk_full(MACRO_PROT_ARGS);
                     37: static void            blk_exp_close(MACRO_PROT_ARGS);
                     38: static void            blk_part_exp(MACRO_PROT_ARGS);
                     39: static void            blk_part_imp(MACRO_PROT_ARGS);
                     40: static void            ctx_synopsis(MACRO_PROT_ARGS);
                     41: static void            in_line_eoln(MACRO_PROT_ARGS);
                     42: static void            in_line_argn(MACRO_PROT_ARGS);
                     43: static void            in_line(MACRO_PROT_ARGS);
                     44: static void            phrase_ta(MACRO_PROT_ARGS);
1.53      kristaps   45:
1.189     schwarze   46: static void            append_delims(struct roff_man *, int, int *, char *);
                     47: static void            dword(struct roff_man *, int, int, const char *,
1.187     schwarze   48:                                enum mdelim, int);
1.189     schwarze   49: static int             find_pending(struct roff_man *, int, int, int,
1.187     schwarze   50:                                struct roff_node *);
1.189     schwarze   51: static int             lookup(struct roff_man *, int, int, int, const char *);
1.153     schwarze   52: static int             macro_or_word(MACRO_PROT_ARGS, int);
1.189     schwarze   53: static int             parse_rest(struct roff_man *, int, int, int *, char *);
1.185     schwarze   54: static int             rew_alt(int);
1.189     schwarze   55: static void            rew_elem(struct roff_man *, int);
                     56: static void            rew_last(struct roff_man *, const struct roff_node *);
                     57: static void            rew_pending(struct roff_man *,
                     58:                                const struct roff_node *);
1.1       kristaps   59:
                     60: const  struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123     schwarze   61:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1       kristaps   62:        { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
                     63:        { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
                     64:        { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123     schwarze   65:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
                     66:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
                     67:        { in_line_eoln, 0 }, /* Pp */
                     68:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
                     69:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1       kristaps   70:        { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123     schwarze   71:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1       kristaps   72:        { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123     schwarze   73:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
                     74:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
                     75:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
                     76:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1       kristaps   77:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129     schwarze   78:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1       kristaps   79:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123     schwarze   80:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
                     81:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
                     82:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1       kristaps   83:        { in_line_eoln, 0 }, /* Ex */
1.123     schwarze   84:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
                     85:        { in_line_eoln, 0 }, /* Fd */
1.1       kristaps   86:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123     schwarze   87:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
                     88:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128     schwarze   89:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18      kristaps   90:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123     schwarze   91:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
                     92:        { blk_full, MDOC_JOIN }, /* Nd */
                     93:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1       kristaps   94:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132     schwarze   95:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1       kristaps   96:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
                     97:        { in_line_eoln, 0 }, /* Rv */
1.123     schwarze   98:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1       kristaps   99:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123     schwarze  100:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42      kristaps  101:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123     schwarze  102:        { in_line_eoln, MDOC_JOIN }, /* %A */
                    103:        { in_line_eoln, MDOC_JOIN }, /* %B */
                    104:        { in_line_eoln, MDOC_JOIN }, /* %D */
                    105:        { in_line_eoln, MDOC_JOIN }, /* %I */
                    106:        { in_line_eoln, MDOC_JOIN }, /* %J */
1.1       kristaps  107:        { in_line_eoln, 0 }, /* %N */
1.123     schwarze  108:        { in_line_eoln, MDOC_JOIN }, /* %O */
1.1       kristaps  109:        { in_line_eoln, 0 }, /* %P */
1.123     schwarze  110:        { in_line_eoln, MDOC_JOIN }, /* %R */
                    111:        { in_line_eoln, MDOC_JOIN }, /* %T */
1.1       kristaps  112:        { in_line_eoln, 0 }, /* %V */
1.123     schwarze  113:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    114:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
                    115:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    116:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
                    117:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1       kristaps  118:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123     schwarze  119:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    120:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
                    121:        { blk_full, MDOC_EXPLICIT }, /* Bf */
                    122:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    123:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
                    124:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1       kristaps  125:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
                    126:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
                    127:        { in_line_eoln, 0 }, /* Db */
1.123     schwarze  128:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    129:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
                    130:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    131:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
                    132:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
                    133:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
                    134:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
                    135:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1       kristaps  136:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
                    137:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11      kristaps  138:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144     schwarze  139:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123     schwarze  140:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
                    141:                        MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1       kristaps  142:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
                    143:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123     schwarze  144:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    145:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52      kristaps  146:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123     schwarze  147:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    148:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
                    149:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
                    150:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    151:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
                    152:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
                    153:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    154:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
                    155:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
                    156:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1       kristaps  157:        { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123     schwarze  158:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    159:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
                    160:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    161:                        MDOC_EXPLICIT | MDOC_JOIN }, /* So */
                    162:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147     schwarze  163:        { in_line_argn, 0 }, /* Sm */
1.123     schwarze  164:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
                    165:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1       kristaps  166:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123     schwarze  167:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1       kristaps  168:        { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
                    169:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123     schwarze  170:        { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
                    171:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    172:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
                    173:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    174:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
                    175:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    176:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1       kristaps  177:        { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123     schwarze  178:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1       kristaps  179:        { in_line_eoln, 0 }, /* Bt */
                    180:        { in_line_eoln, 0 }, /* Hf */
1.132     schwarze  181:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1       kristaps  182:        { in_line_eoln, 0 }, /* Ud */
1.69      kristaps  183:        { in_line, 0 }, /* Lb */
1.123     schwarze  184:        { in_line_eoln, 0 }, /* Lp */
                    185:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
                    186:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
                    187:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
                    188:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    189:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
                    190:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    191:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
                    192:        { in_line_eoln, MDOC_JOIN }, /* %C */
1.132     schwarze  193:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
                    194:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1       kristaps  195:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123     schwarze  196:        { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20      kristaps  197:        { in_line_eoln, 0 }, /* br */
                    198:        { in_line_eoln, 0 }, /* sp */
1.37      kristaps  199:        { in_line_eoln, 0 }, /* %U */
1.123     schwarze  200:        { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143     schwarze  201:        { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1       kristaps  202: };
                    203:
                    204: const  struct mdoc_macro * const mdoc_macros = __mdoc_macros;
                    205:
                    206:
                    207: /*
                    208:  * This is called at the end of parsing.  It must traverse up the tree,
                    209:  * closing out open [implicit] scopes.  Obviously, open explicit scopes
                    210:  * are errors.
                    211:  */
1.151     schwarze  212: void
1.189     schwarze  213: mdoc_macroend(struct roff_man *mdoc)
1.1       kristaps  214: {
1.185     schwarze  215:        struct roff_node *n;
1.1       kristaps  216:
                    217:        /* Scan for open explicit scopes. */
                    218:
1.151     schwarze  219:        n = mdoc->last->flags & MDOC_VALID ?
1.131     schwarze  220:            mdoc->last->parent : mdoc->last;
1.1       kristaps  221:
1.94      schwarze  222:        for ( ; n; n = n->parent)
1.184     schwarze  223:                if (n->type == ROFFT_BLOCK &&
1.151     schwarze  224:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137     schwarze  225:                        mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
                    226:                            n->line, n->pos, mdoc_macronames[n->tok]);
1.1       kristaps  227:
1.32      kristaps  228:        /* Rewind to the first. */
                    229:
1.149     schwarze  230:        rew_last(mdoc, mdoc->first);
1.1       kristaps  231: }
                    232:
1.32      kristaps  233: /*
1.153     schwarze  234:  * Look up the macro at *p called by "from",
                    235:  * or as a line macro if from == MDOC_MAX.
1.32      kristaps  236:  */
1.185     schwarze  237: static int
1.189     schwarze  238: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.28      kristaps  239: {
1.185     schwarze  240:        int      res;
1.1       kristaps  241:
1.153     schwarze  242:        if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
                    243:                res = mdoc_hash_find(p);
1.155     schwarze  244:                if (res != MDOC_MAX) {
                    245:                        if (mdoc_macros[res].flags & MDOC_CALLABLE)
                    246:                                return(res);
                    247:                        if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
                    248:                                mandoc_msg(MANDOCERR_MACRO_CALL,
                    249:                                    mdoc->parse, line, ppos, p);
                    250:                }
1.153     schwarze  251:        }
1.1       kristaps  252:        return(MDOC_MAX);
                    253: }
                    254:
1.166     schwarze  255: /*
                    256:  * Rewind up to and including a specific node.
                    257:  */
1.149     schwarze  258: static void
1.189     schwarze  259: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1       kristaps  260: {
1.185     schwarze  261:        struct roff_node *n, *np;
1.1       kristaps  262:
1.186     schwarze  263:        if (to->flags & MDOC_VALID)
                    264:                return;
                    265:
1.189     schwarze  266:        mdoc->next = ROFF_NEXT_SIBLING;
1.1       kristaps  267:        while (mdoc->last != to) {
1.100     kristaps  268:                /*
                    269:                 * Save the parent here, because we may delete the
1.119     schwarze  270:                 * mdoc->last node in the post-validation phase and reset
                    271:                 * it to mdoc->last->parent, causing a step in the closing
1.100     kristaps  272:                 * out to be lost.
                    273:                 */
                    274:                np = mdoc->last->parent;
1.149     schwarze  275:                mdoc_valid_post(mdoc);
1.99      kristaps  276:                n = mdoc->last;
1.100     kristaps  277:                mdoc->last = np;
1.1       kristaps  278:                assert(mdoc->last);
1.99      kristaps  279:                mdoc->last->last = n;
1.1       kristaps  280:        }
1.149     schwarze  281:        mdoc_valid_post(mdoc);
1.1       kristaps  282: }
                    283:
1.32      kristaps  284: /*
1.166     schwarze  285:  * Rewind up to a specific block, including all blocks that broke it.
                    286:  */
                    287: static void
1.189     schwarze  288: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.166     schwarze  289: {
                    290:
1.183     schwarze  291:        for (;;) {
                    292:                rew_last(mdoc, n);
                    293:
                    294:                switch (n->type) {
1.184     schwarze  295:                case ROFFT_HEAD:
1.190   ! schwarze  296:                        roff_body_alloc(mdoc, n->line, n->pos, n->tok);
1.183     schwarze  297:                        return;
1.184     schwarze  298:                case ROFFT_BLOCK:
1.183     schwarze  299:                        break;
                    300:                default:
                    301:                        return;
                    302:                }
1.166     schwarze  303:
1.183     schwarze  304:                if ( ! (n->flags & MDOC_BROKEN))
                    305:                        return;
1.166     schwarze  306:
1.183     schwarze  307:                for (;;) {
                    308:                        if ((n = n->parent) == NULL)
                    309:                                return;
                    310:
1.184     schwarze  311:                        if (n->type == ROFFT_BLOCK ||
                    312:                            n->type == ROFFT_HEAD) {
1.183     schwarze  313:                                if (n->flags & MDOC_ENDED)
                    314:                                        break;
                    315:                                else
                    316:                                        return;
                    317:                        }
                    318:                }
1.166     schwarze  319:        }
                    320: }
                    321:
                    322: /*
1.84      schwarze  323:  * For a block closing macro, return the corresponding opening one.
                    324:  * Otherwise, return the macro itself.
1.32      kristaps  325:  */
1.185     schwarze  326: static int
                    327: rew_alt(int tok)
1.1       kristaps  328: {
                    329:        switch (tok) {
1.131     schwarze  330:        case MDOC_Ac:
1.1       kristaps  331:                return(MDOC_Ao);
1.131     schwarze  332:        case MDOC_Bc:
1.1       kristaps  333:                return(MDOC_Bo);
1.131     schwarze  334:        case MDOC_Brc:
1.1       kristaps  335:                return(MDOC_Bro);
1.131     schwarze  336:        case MDOC_Dc:
1.1       kristaps  337:                return(MDOC_Do);
1.131     schwarze  338:        case MDOC_Ec:
1.1       kristaps  339:                return(MDOC_Eo);
1.131     schwarze  340:        case MDOC_Ed:
1.1       kristaps  341:                return(MDOC_Bd);
1.131     schwarze  342:        case MDOC_Ef:
1.1       kristaps  343:                return(MDOC_Bf);
1.131     schwarze  344:        case MDOC_Ek:
1.1       kristaps  345:                return(MDOC_Bk);
1.131     schwarze  346:        case MDOC_El:
1.1       kristaps  347:                return(MDOC_Bl);
1.131     schwarze  348:        case MDOC_Fc:
1.1       kristaps  349:                return(MDOC_Fo);
1.131     schwarze  350:        case MDOC_Oc:
1.1       kristaps  351:                return(MDOC_Oo);
1.131     schwarze  352:        case MDOC_Pc:
1.1       kristaps  353:                return(MDOC_Po);
1.131     schwarze  354:        case MDOC_Qc:
1.1       kristaps  355:                return(MDOC_Qo);
1.131     schwarze  356:        case MDOC_Re:
1.1       kristaps  357:                return(MDOC_Rs);
1.131     schwarze  358:        case MDOC_Sc:
1.1       kristaps  359:                return(MDOC_So);
1.131     schwarze  360:        case MDOC_Xc:
1.1       kristaps  361:                return(MDOC_Xo);
                    362:        default:
1.84      schwarze  363:                return(tok);
1.1       kristaps  364:        }
                    365:        /* NOTREACHED */
                    366: }
                    367:
1.149     schwarze  368: static void
1.189     schwarze  369: rew_elem(struct roff_man *mdoc, int tok)
1.1       kristaps  370: {
1.185     schwarze  371:        struct roff_node *n;
1.1       kristaps  372:
                    373:        n = mdoc->last;
1.184     schwarze  374:        if (n->type != ROFFT_ELEM)
1.1       kristaps  375:                n = n->parent;
1.184     schwarze  376:        assert(n->type == ROFFT_ELEM);
1.1       kristaps  377:        assert(tok == n->tok);
1.149     schwarze  378:        rew_last(mdoc, n);
1.1       kristaps  379: }
                    380:
1.83      schwarze  381: /*
1.187     schwarze  382:  * If there is an open sub-block of the target requiring
                    383:  * explicit close-out, postpone closing out the target until
                    384:  * the rew_pending() call closing out the sub-block.
                    385:  */
                    386: static int
1.189     schwarze  387: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.187     schwarze  388:        struct roff_node *target)
                    389: {
                    390:        struct roff_node        *n;
                    391:        int                      irc;
                    392:
                    393:        irc = 0;
                    394:        for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
                    395:                if (n->flags & MDOC_ENDED) {
                    396:                        if ( ! (n->flags & MDOC_VALID))
                    397:                                n->flags |= MDOC_BROKEN;
                    398:                        continue;
                    399:                }
                    400:                if (n->type == ROFFT_BLOCK &&
                    401:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    402:                        irc = 1;
                    403:                        n->flags = MDOC_BROKEN;
                    404:                        if (target->type == ROFFT_HEAD)
                    405:                                target->flags = MDOC_ENDED;
                    406:                        else if ( ! (target->flags & MDOC_ENDED)) {
                    407:                                mandoc_vmsg(MANDOCERR_BLK_NEST,
                    408:                                    mdoc->parse, line, ppos,
                    409:                                    "%s breaks %s", mdoc_macronames[tok],
                    410:                                    mdoc_macronames[n->tok]);
                    411:                                mdoc_endbody_alloc(mdoc, line, ppos,
                    412:                                    tok, target, ENDBODY_NOSPACE);
                    413:                        }
                    414:                }
                    415:        }
                    416:        return(irc);
                    417: }
                    418:
                    419: /*
1.105     kristaps  420:  * Allocate a word and check whether it's punctuation or not.
                    421:  * Punctuation consists of those tokens found in mdoc_isdelim().
                    422:  */
1.150     schwarze  423: static void
1.189     schwarze  424: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123     schwarze  425:                enum mdelim d, int may_append)
1.105     kristaps  426: {
1.131     schwarze  427:
1.150     schwarze  428:        if (d == DELIM_MAX)
1.105     kristaps  429:                d = mdoc_isdelim(p);
                    430:
1.123     schwarze  431:        if (may_append &&
1.150     schwarze  432:            ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184     schwarze  433:            d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150     schwarze  434:            mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123     schwarze  435:                mdoc_word_append(mdoc, p);
1.150     schwarze  436:                return;
1.123     schwarze  437:        }
                    438:
1.150     schwarze  439:        mdoc_word_alloc(mdoc, line, col, p);
1.105     kristaps  440:
1.108     schwarze  441:        /*
1.144     schwarze  442:         * If the word consists of a bare delimiter,
                    443:         * flag the new node accordingly,
                    444:         * unless doing so was vetoed by the invoking macro.
                    445:         * Always clear the veto, it is only valid for one word.
1.108     schwarze  446:         */
                    447:
1.144     schwarze  448:        if (d == DELIM_OPEN)
                    449:                mdoc->last->flags |= MDOC_DELIMO;
                    450:        else if (d == DELIM_CLOSE &&
                    451:            ! (mdoc->flags & MDOC_NODELIMC) &&
1.131     schwarze  452:            mdoc->last->parent->tok != MDOC_Fd)
1.119     schwarze  453:                mdoc->last->flags |= MDOC_DELIMC;
1.144     schwarze  454:        mdoc->flags &= ~MDOC_NODELIMC;
1.105     kristaps  455: }
1.1       kristaps  456:
1.150     schwarze  457: static void
1.189     schwarze  458: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1       kristaps  459: {
1.153     schwarze  460:        char            *p;
1.66      kristaps  461:        int              la;
1.1       kristaps  462:
1.150     schwarze  463:        if (buf[*pos] == '\0')
                    464:                return;
1.1       kristaps  465:
                    466:        for (;;) {
1.66      kristaps  467:                la = *pos;
1.153     schwarze  468:                if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1       kristaps  469:                        break;
1.123     schwarze  470:                dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66      kristaps  471:
                    472:                /*
                    473:                 * If we encounter end-of-sentence symbols, then trigger
                    474:                 * the double-space.
                    475:                 *
1.109     kristaps  476:                 * XXX: it's easy to allow this to propagate outward to
1.66      kristaps  477:                 * the last symbol, such that `. )' will cause the
                    478:                 * correct double-spacing.  However, (1) groff isn't
                    479:                 * smart enough to do this and (2) it would require
                    480:                 * knowing which symbols break this behaviour, for
1.109     kristaps  481:                 * example, `.  ;' shouldn't propagate the double-space.
1.66      kristaps  482:                 */
1.150     schwarze  483:
1.127     schwarze  484:                if (mandoc_eos(p, strlen(p)))
1.119     schwarze  485:                        mdoc->last->flags |= MDOC_EOS;
1.1       kristaps  486:        }
                    487: }
                    488:
                    489: /*
1.153     schwarze  490:  * Parse one word.
                    491:  * If it is a macro, call it and return 1.
                    492:  * Otherwise, allocate it and return 0.
                    493:  */
                    494: static int
                    495: macro_or_word(MACRO_PROT_ARGS, int parsed)
                    496: {
                    497:        char            *p;
1.185     schwarze  498:        int              ntok;
1.153     schwarze  499:
                    500:        p = buf + ppos;
                    501:        ntok = MDOC_MAX;
1.157     schwarze  502:        if (*p == '"')
1.153     schwarze  503:                p++;
1.157     schwarze  504:        else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155     schwarze  505:                ntok = lookup(mdoc, tok, line, ppos, p);
1.153     schwarze  506:
                    507:        if (ntok == MDOC_MAX) {
                    508:                dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
                    509:                    mdoc_macros[tok].flags & MDOC_JOIN);
                    510:                return(0);
                    511:        } else {
                    512:                if (mdoc_macros[tok].fp == in_line_eoln)
                    513:                        rew_elem(mdoc, tok);
                    514:                mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
                    515:                if (tok == MDOC_MAX)
                    516:                        append_delims(mdoc, line, pos, buf);
                    517:                return(1);
                    518:        }
                    519: }
                    520:
                    521: /*
1.131     schwarze  522:  * Close out block partial/full explicit.
1.1       kristaps  523:  */
1.151     schwarze  524: static void
1.1       kristaps  525: blk_exp_close(MACRO_PROT_ARGS)
                    526: {
1.185     schwarze  527:        struct roff_node *body;         /* Our own body. */
                    528:        struct roff_node *endbody;      /* Our own end marker. */
                    529:        struct roff_node *itblk;        /* An It block starting later. */
                    530:        struct roff_node *later;        /* A sub-block starting later. */
                    531:        struct roff_node *n;            /* Search back to our block. */
1.188     schwarze  532:        struct roff_node *target;       /* For find_pending(). */
1.83      schwarze  533:
1.188     schwarze  534:        int              j, lastarg, maxargs, nl, pending;
1.55      kristaps  535:        enum margserr    ac;
1.185     schwarze  536:        int              atok, ntok;
1.1       kristaps  537:        char            *p;
                    538:
1.119     schwarze  539:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  540:
1.1       kristaps  541:        switch (tok) {
1.131     schwarze  542:        case MDOC_Ec:
1.1       kristaps  543:                maxargs = 1;
                    544:                break;
1.131     schwarze  545:        case MDOC_Ek:
1.125     schwarze  546:                mdoc->flags &= ~MDOC_KEEP;
1.151     schwarze  547:                /* FALLTHROUGH */
1.1       kristaps  548:        default:
                    549:                maxargs = 0;
                    550:                break;
                    551:        }
                    552:
1.83      schwarze  553:        /*
                    554:         * Search backwards for beginnings of blocks,
                    555:         * both of our own and of pending sub-blocks.
                    556:         */
1.151     schwarze  557:
1.83      schwarze  558:        atok = rew_alt(tok);
1.171     schwarze  559:        body = endbody = itblk = later = NULL;
1.119     schwarze  560:        for (n = mdoc->last; n; n = n->parent) {
1.183     schwarze  561:                if (n->flags & MDOC_ENDED) {
                    562:                        if ( ! (n->flags & MDOC_VALID))
                    563:                                n->flags |= MDOC_BROKEN;
1.83      schwarze  564:                        continue;
1.183     schwarze  565:                }
1.83      schwarze  566:
                    567:                /* Remember the start of our own body. */
1.151     schwarze  568:
1.184     schwarze  569:                if (n->type == ROFFT_BODY && atok == n->tok) {
1.175     schwarze  570:                        if (n->end == ENDBODY_NOT)
1.83      schwarze  571:                                body = n;
                    572:                        continue;
                    573:                }
                    574:
1.184     schwarze  575:                if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83      schwarze  576:                        continue;
1.160     schwarze  577:
                    578:                if (n->tok == MDOC_It) {
1.171     schwarze  579:                        itblk = n;
1.160     schwarze  580:                        continue;
                    581:                }
                    582:
1.83      schwarze  583:                if (atok == n->tok) {
                    584:                        assert(body);
                    585:
                    586:                        /*
                    587:                         * Found the start of our own block.
                    588:                         * When there is no pending sub block,
                    589:                         * just proceed to closing out.
                    590:                         */
1.151     schwarze  591:
1.160     schwarze  592:                        if (later == NULL ||
1.171     schwarze  593:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  594:                                break;
                    595:
1.131     schwarze  596:                        /*
1.167     schwarze  597:                         * When there is a pending sub block, postpone
                    598:                         * closing out the current block until the
                    599:                         * rew_pending() closing out the sub-block.
1.83      schwarze  600:                         * Mark the place where the formatting - but not
                    601:                         * the scope - of the current block ends.
                    602:                         */
1.151     schwarze  603:
1.183     schwarze  604:                        mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
                    605:                            line, ppos, "%s breaks %s",
                    606:                            mdoc_macronames[atok],
                    607:                            mdoc_macronames[later->tok]);
                    608:
1.166     schwarze  609:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150     schwarze  610:                            atok, body, ENDBODY_SPACE);
1.151     schwarze  611:
1.183     schwarze  612:                        if (tok == MDOC_El)
                    613:                                itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
                    614:
1.151     schwarze  615:                        /*
                    616:                         * If a block closing macro taking arguments
                    617:                         * breaks another block, put the arguments
1.166     schwarze  618:                         * into the end marker.
1.151     schwarze  619:                         */
                    620:
1.166     schwarze  621:                        if (maxargs)
1.189     schwarze  622:                                mdoc->next = ROFF_NEXT_CHILD;
1.83      schwarze  623:                        break;
1.182     schwarze  624:                }
                    625:
                    626:                /* Explicit blocks close out description lines. */
                    627:
                    628:                if (n->tok == MDOC_Nd) {
                    629:                        rew_last(mdoc, n);
                    630:                        continue;
1.83      schwarze  631:                }
                    632:
1.183     schwarze  633:                /* Breaking an open sub block. */
1.151     schwarze  634:
1.183     schwarze  635:                n->flags |= MDOC_BROKEN;
                    636:                if (later == NULL)
1.83      schwarze  637:                        later = n;
                    638:        }
1.166     schwarze  639:
                    640:        if (body == NULL) {
                    641:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
                    642:                    line, ppos, mdoc_macronames[tok]);
                    643:                if (maxargs && endbody == NULL) {
                    644:                        /*
                    645:                         * Stray .Ec without previous .Eo:
                    646:                         * Break the output line, keep the arguments.
                    647:                         */
                    648:                        mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
                    649:                        rew_elem(mdoc, MDOC_br);
                    650:                }
                    651:        } else if (endbody == NULL) {
                    652:                rew_last(mdoc, body);
                    653:                if (maxargs)
                    654:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    655:        }
1.83      schwarze  656:
1.150     schwarze  657:        if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
                    658:                if (buf[*pos] != '\0')
1.136     schwarze  659:                        mandoc_vmsg(MANDOCERR_ARG_SKIP,
                    660:                            mdoc->parse, line, ppos,
                    661:                            "%s %s", mdoc_macronames[tok],
                    662:                            buf + *pos);
1.171     schwarze  663:                if (endbody == NULL && n != NULL)
1.167     schwarze  664:                        rew_pending(mdoc, n);
1.151     schwarze  665:                return;
1.1       kristaps  666:        }
                    667:
1.166     schwarze  668:        if (endbody != NULL)
                    669:                n = endbody;
1.148     schwarze  670:        for (j = 0; ; j++) {
1.1       kristaps  671:                lastarg = *pos;
                    672:
1.186     schwarze  673:                if (j == maxargs && n != NULL)
                    674:                        rew_last(mdoc, n);
1.1       kristaps  675:
1.119     schwarze  676:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  677:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  678:                        break;
                    679:
1.155     schwarze  680:                ntok = ac == ARGS_QWORD ? MDOC_MAX :
                    681:                    lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  682:
1.150     schwarze  683:                if (ntok == MDOC_MAX) {
                    684:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
                    685:                            MDOC_JOIN & mdoc_macros[tok].flags);
1.54      kristaps  686:                        continue;
                    687:                }
1.1       kristaps  688:
1.186     schwarze  689:                if (n != NULL)
                    690:                        rew_last(mdoc, n);
1.122     schwarze  691:                mdoc->flags &= ~MDOC_NEWLINE;
1.151     schwarze  692:                mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  693:                break;
1.1       kristaps  694:        }
                    695:
1.188     schwarze  696:        if (n != NULL) {
                    697:                if (n != mdoc->last && n->flags & MDOC_BROKEN) {
                    698:                        target = n;
                    699:                        do
                    700:                                target = target->parent;
                    701:                        while ( ! (target->flags & MDOC_ENDED));
                    702:                        pending = find_pending(mdoc, ntok, line, ppos,
                    703:                            target);
                    704:                } else
                    705:                        pending = 0;
                    706:                if ( ! pending)
                    707:                        rew_pending(mdoc, n);
                    708:        }
1.150     schwarze  709:        if (nl)
                    710:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  711: }
                    712:
1.151     schwarze  713: static void
1.1       kristaps  714: in_line(MACRO_PROT_ARGS)
                    715: {
1.144     schwarze  716:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.185     schwarze  717:        int              ntok;
1.55      kristaps  718:        enum margserr    ac;
1.67      schwarze  719:        enum mdelim      d;
1.53      kristaps  720:        struct mdoc_arg *arg;
                    721:        char            *p;
1.1       kristaps  722:
1.119     schwarze  723:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  724:
1.4       kristaps  725:        /*
                    726:         * Whether we allow ignored elements (those without content,
                    727:         * usually because of reserved words) to squeak by.
                    728:         */
1.45      kristaps  729:
1.4       kristaps  730:        switch (tok) {
1.131     schwarze  731:        case MDOC_An:
1.26      kristaps  732:                /* FALLTHROUGH */
1.131     schwarze  733:        case MDOC_Ar:
1.4       kristaps  734:                /* FALLTHROUGH */
1.131     schwarze  735:        case MDOC_Fl:
1.4       kristaps  736:                /* FALLTHROUGH */
1.131     schwarze  737:        case MDOC_Mt:
1.12      kristaps  738:                /* FALLTHROUGH */
1.131     schwarze  739:        case MDOC_Nm:
1.26      kristaps  740:                /* FALLTHROUGH */
1.131     schwarze  741:        case MDOC_Pa:
1.4       kristaps  742:                nc = 1;
                    743:                break;
                    744:        default:
                    745:                nc = 0;
                    746:                break;
                    747:        }
                    748:
1.152     schwarze  749:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  750:
1.144     schwarze  751:        d = DELIM_NONE;
                    752:        firstarg = 1;
1.142     schwarze  753:        mayopen = 1;
1.70      kristaps  754:        for (cnt = scope = 0;; ) {
1.1       kristaps  755:                la = *pos;
1.119     schwarze  756:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  757:
1.144     schwarze  758:                /*
                    759:                 * At the end of a macro line,
                    760:                 * opening delimiters do not suppress spacing.
                    761:                 */
                    762:
                    763:                if (ac == ARGS_EOLN) {
                    764:                        if (d == DELIM_OPEN)
                    765:                                mdoc->last->flags &= ~MDOC_DELIMO;
1.1       kristaps  766:                        break;
1.144     schwarze  767:                }
                    768:
                    769:                /*
                    770:                 * The rest of the macro line is only punctuation,
                    771:                 * to be handled by append_delims().
                    772:                 * If there were no other arguments,
                    773:                 * do not allow the first one to suppress spacing,
                    774:                 * even if it turns out to be a closing one.
                    775:                 */
                    776:
                    777:                if (ac == ARGS_PUNCT) {
1.176     schwarze  778:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  779:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  780:                        break;
1.144     schwarze  781:                }
1.1       kristaps  782:
1.145     schwarze  783:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155     schwarze  784:                    MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1       kristaps  785:
1.131     schwarze  786:                /*
1.4       kristaps  787:                 * In this case, we've located a submacro and must
                    788:                 * execute it.  Close out scope, if open.  If no
                    789:                 * elements have been generated, either create one (nc)
                    790:                 * or raise a warning.
                    791:                 */
1.1       kristaps  792:
1.150     schwarze  793:                if (ntok != MDOC_MAX) {
1.149     schwarze  794:                        if (scope)
                    795:                                rew_elem(mdoc, tok);
1.150     schwarze  796:                        if (nc && ! cnt) {
                    797:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  798:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  799:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  800:                                mdoc_argv_free(arg);
1.135     schwarze  801:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    802:                                    mdoc->parse, line, ppos,
                    803:                                    mdoc_macronames[tok]);
1.7       kristaps  804:                        }
1.151     schwarze  805:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150     schwarze  806:                        if (nl)
                    807:                                append_delims(mdoc, line, pos, buf);
1.151     schwarze  808:                        return;
1.131     schwarze  809:                }
1.1       kristaps  810:
1.131     schwarze  811:                /*
1.4       kristaps  812:                 * Non-quote-enclosed punctuation.  Set up our scope, if
                    813:                 * a word; rewind the scope, if a delimiter; then append
1.131     schwarze  814:                 * the word.
1.4       kristaps  815:                 */
1.1       kristaps  816:
1.150     schwarze  817:                d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3       kristaps  818:
1.70      kristaps  819:                if (DELIM_NONE != d) {
                    820:                        /*
                    821:                         * If we encounter closing punctuation, no word
1.144     schwarze  822:                         * has been emitted, no scope is open, and we're
1.70      kristaps  823:                         * allowed to have an empty element, then start
1.142     schwarze  824:                         * a new scope.
1.70      kristaps  825:                         */
1.142     schwarze  826:                        if ((d == DELIM_CLOSE ||
                    827:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  828:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  829:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  830:                                scope = 1;
1.142     schwarze  831:                                cnt++;
1.150     schwarze  832:                                if (tok == MDOC_Nm)
1.142     schwarze  833:                                        mayopen = 0;
1.70      kristaps  834:                        }
                    835:                        /*
                    836:                         * Close out our scope, if one is open, before
                    837:                         * any punctuation.
                    838:                         */
1.149     schwarze  839:                        if (scope)
                    840:                                rew_elem(mdoc, tok);
1.70      kristaps  841:                        scope = 0;
1.145     schwarze  842:                        if (tok == MDOC_Fn)
                    843:                                mayopen = 0;
1.142     schwarze  844:                } else if (mayopen && !scope) {
1.150     schwarze  845:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  846:                        scope = 1;
1.142     schwarze  847:                        cnt++;
1.1       kristaps  848:                }
1.105     kristaps  849:
1.150     schwarze  850:                dword(mdoc, line, la, p, d,
                    851:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.39      kristaps  852:
                    853:                /*
1.144     schwarze  854:                 * If the first argument is a closing delimiter,
                    855:                 * do not suppress spacing before it.
                    856:                 */
                    857:
                    858:                if (firstarg && d == DELIM_CLOSE && !nc)
                    859:                        mdoc->last->flags &= ~MDOC_DELIMC;
                    860:                firstarg = 0;
                    861:
                    862:                /*
1.39      kristaps  863:                 * `Fl' macros have their scope re-opened with each new
                    864:                 * word so that the `-' can be added to each one without
                    865:                 * having to parse out spaces.
                    866:                 */
1.150     schwarze  867:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  868:                        rew_elem(mdoc, tok);
1.70      kristaps  869:                        scope = 0;
1.39      kristaps  870:                }
1.1       kristaps  871:        }
                    872:
1.149     schwarze  873:        if (scope)
                    874:                rew_elem(mdoc, tok);
1.4       kristaps  875:
                    876:        /*
                    877:         * If no elements have been collected and we're allowed to have
                    878:         * empties (nc), open a scope and close it out.  Otherwise,
                    879:         * raise a warning.
                    880:         */
1.45      kristaps  881:
1.150     schwarze  882:        if ( ! cnt) {
                    883:                if (nc) {
                    884:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    885:                        rew_last(mdoc, mdoc->last);
                    886:                } else {
                    887:                        mdoc_argv_free(arg);
                    888:                        mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    889:                            line, ppos, mdoc_macronames[tok]);
                    890:                }
1.7       kristaps  891:        }
1.150     schwarze  892:        if (nl)
                    893:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  894: }
                    895:
1.151     schwarze  896: static void
1.1       kristaps  897: blk_full(MACRO_PROT_ARGS)
                    898: {
1.153     schwarze  899:        int               la, nl, parsed;
1.1       kristaps  900:        struct mdoc_arg  *arg;
1.185     schwarze  901:        struct roff_node *blk; /* Our own or a broken block. */
                    902:        struct roff_node *head; /* Our own head. */
                    903:        struct roff_node *body; /* Our own body. */
                    904:        struct roff_node *n;
1.59      kristaps  905:        enum margserr     ac, lac;
1.1       kristaps  906:        char             *p;
                    907:
1.119     schwarze  908:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  909:
1.177     schwarze  910:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    911:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    912:                    line, ppos, mdoc_macronames[tok]);
                    913:                return;
                    914:        }
                    915:
1.171     schwarze  916:        if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
                    917:
                    918:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    919:
                    920:                blk = NULL;
                    921:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze  922:                        if (n->flags & MDOC_ENDED) {
                    923:                                if ( ! (n->flags & MDOC_VALID))
                    924:                                        n->flags |= MDOC_BROKEN;
                    925:                                continue;
                    926:                        }
1.184     schwarze  927:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  928:                                continue;
1.183     schwarze  929:
1.171     schwarze  930:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    931:                                if (blk != NULL) {
                    932:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    933:                                            mdoc->parse, line, ppos,
                    934:                                            "It breaks %s",
                    935:                                            mdoc_macronames[blk->tok]);
                    936:                                        rew_pending(mdoc, blk);
                    937:                                }
                    938:                                break;
                    939:                        }
                    940:
                    941:                        if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    942:                                switch (tok) {
                    943:                                case MDOC_Sh:
                    944:                                        /* FALLTHROUGH */
                    945:                                case MDOC_Ss:
                    946:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    947:                                            mdoc->parse, line, ppos,
                    948:                                            "%s breaks %s",
                    949:                                            mdoc_macronames[tok],
                    950:                                            mdoc_macronames[n->tok]);
                    951:                                        rew_pending(mdoc, n);
1.180     schwarze  952:                                        n = mdoc->last;
1.171     schwarze  953:                                        continue;
                    954:                                case MDOC_It:
                    955:                                        /* Delay in case it's astray. */
                    956:                                        blk = n;
                    957:                                        continue;
                    958:                                default:
                    959:                                        break;
                    960:                                }
                    961:                                break;
                    962:                        }
                    963:
                    964:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze  965:
1.171     schwarze  966:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                    967:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                    968:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze  969:                                break;
1.171     schwarze  970:
                    971:                        /* Item breaking an explicit block. */
                    972:
                    973:                        if (blk != NULL) {
                    974:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    975:                                    mdoc->parse, line, ppos,
                    976:                                    "It breaks %s",
                    977:                                    mdoc_macronames[blk->tok]);
                    978:                                rew_pending(mdoc, blk);
1.172     schwarze  979:                                blk = NULL;
1.171     schwarze  980:                        }
                    981:
                    982:                        /* Close out prior implicit scopes. */
                    983:
                    984:                        rew_last(mdoc, n);
                    985:                }
                    986:
                    987:                /* Skip items outside lists. */
                    988:
                    989:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138     schwarze  990:                        mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
                    991:                            line, ppos, "It %s", buf + *pos);
1.150     schwarze  992:                        mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149     schwarze  993:                        rew_elem(mdoc, MDOC_br);
1.151     schwarze  994:                        return;
1.138     schwarze  995:                }
1.1       kristaps  996:        }
                    997:
1.45      kristaps  998:        /*
1.109     kristaps  999:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps 1000:         * macro openings.  Implicit ones first close out prior scope
                   1001:         * (seen above).  Delay opening the head until necessary to
                   1002:         * allow leading punctuation to print.  Special consideration
                   1003:         * for `It -column', which has phrase-part syntax instead of
                   1004:         * regular child nodes.
                   1005:         */
                   1006:
1.152     schwarze 1007:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze 1008:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps 1009:        head = body = NULL;
1.115     schwarze 1010:
                   1011:        /*
                   1012:         * Exception: Heads of `It' macros in `-diag' lists are not
                   1013:         * parsed, even though `It' macros in general are parsed.
                   1014:         */
1.151     schwarze 1015:
1.153     schwarze 1016:        parsed = tok != MDOC_It ||
                   1017:            mdoc->last->parent->tok != MDOC_Bl ||
                   1018:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps 1019:
1.45      kristaps 1020:        /*
                   1021:         * The `Nd' macro has all arguments in its body: it's a hybrid
                   1022:         * of block partial-explicit and full-implicit.  Stupid.
                   1023:         */
1.19      kristaps 1024:
1.150     schwarze 1025:        if (tok == MDOC_Nd) {
1.190   ! schwarze 1026:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze 1027:                rew_last(mdoc, head);
1.190   ! schwarze 1028:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze 1029:        }
                   1030:
1.150     schwarze 1031:        if (tok == MDOC_Bk)
1.123     schwarze 1032:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps 1033:
1.150     schwarze 1034:        ac = ARGS_PEND;
                   1035:        for (;;) {
1.45      kristaps 1036:                la = *pos;
1.150     schwarze 1037:                lac = ac;
1.119     schwarze 1038:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1039:                if (ac == ARGS_EOLN) {
                   1040:                        if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75      kristaps 1041:                                break;
                   1042:                        /*
                   1043:                         * This is necessary: if the last token on a
                   1044:                         * line is a `Ta' or tab, then we'll get
                   1045:                         * ARGS_EOLN, so we must be smart enough to
                   1046:                         * reopen our scope if the last parse was a
                   1047:                         * phrase or partial phrase.
                   1048:                         */
1.167     schwarze 1049:                        if (body != NULL)
                   1050:                                rew_last(mdoc, body);
1.190   ! schwarze 1051:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1052:                        break;
1.75      kristaps 1053:                }
1.174     schwarze 1054:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
                   1055:                        mandoc_vmsg(MANDOCERR_ARG_EXCESS,
                   1056:                            mdoc->parse, line, la, "%s ... %s",
                   1057:                            mdoc_macronames[tok], buf + la);
                   1058:                        break;
                   1059:                }
1.173     schwarze 1060:                if (tok == MDOC_Rs) {
                   1061:                        mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
                   1062:                            line, la, "Rs %s", buf + la);
                   1063:                        break;
                   1064:                }
                   1065:                if (ac == ARGS_PUNCT)
                   1066:                        break;
1.45      kristaps 1067:
1.131     schwarze 1068:                /*
1.73      kristaps 1069:                 * Emit leading punctuation (i.e., punctuation before
1.184     schwarze 1070:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1071:                 */
1.45      kristaps 1072:
1.150     schwarze 1073:                if (head == NULL &&
                   1074:                    ac != ARGS_PEND &&
                   1075:                    ac != ARGS_PHRASE &&
                   1076:                    ac != ARGS_PPHRASE &&
                   1077:                    ac != ARGS_QWORD &&
                   1078:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1079:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1080:                        continue;
                   1081:                }
                   1082:
1.74      kristaps 1083:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1084:
1.150     schwarze 1085:                if (head == NULL)
1.190   ! schwarze 1086:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1087:
1.150     schwarze 1088:                if (ac == ARGS_PHRASE ||
                   1089:                    ac == ARGS_PEND ||
                   1090:                    ac == ARGS_PPHRASE) {
1.151     schwarze 1091:
1.73      kristaps 1092:                        /*
1.74      kristaps 1093:                         * If we haven't opened a body yet, rewind the
                   1094:                         * head; if we have, rewind that instead.
                   1095:                         */
                   1096:
1.167     schwarze 1097:                        rew_last(mdoc, body == NULL ? head : body);
1.190   ! schwarze 1098:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1099:
                   1100:                        /*
1.73      kristaps 1101:                         * Process phrases: set whether we're in a
                   1102:                         * partial-phrase (this effects line handling)
                   1103:                         * then call down into the phrase parser.
                   1104:                         */
1.74      kristaps 1105:
1.150     schwarze 1106:                        if (ac == ARGS_PPHRASE)
1.119     schwarze 1107:                                mdoc->flags |= MDOC_PPHRASE;
1.150     schwarze 1108:                        if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119     schwarze 1109:                                mdoc->flags |= MDOC_PPHRASE;
1.154     schwarze 1110:                        parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119     schwarze 1111:                        mdoc->flags &= ~MDOC_PPHRASE;
1.1       kristaps 1112:                        continue;
                   1113:                }
                   1114:
1.153     schwarze 1115:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1116:                        break;
1.45      kristaps 1117:        }
1.1       kristaps 1118:
1.165     schwarze 1119:        if (blk->flags & MDOC_VALID)
                   1120:                return;
1.150     schwarze 1121:        if (head == NULL)
1.190   ! schwarze 1122:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1123:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1124:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1125:        if (body != NULL)
1.77      kristaps 1126:                goto out;
1.187     schwarze 1127:        if (find_pending(mdoc, tok, line, ppos, head))
1.183     schwarze 1128:                return;
1.47      kristaps 1129:
1.45      kristaps 1130:        /* Close out scopes to remain in a consistent state. */
                   1131:
1.167     schwarze 1132:        rew_last(mdoc, head);
1.190   ! schwarze 1133:        body = roff_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1134: out:
1.150     schwarze 1135:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1136:                rew_last(mdoc, body);
                   1137:                rew_last(mdoc, blk);
1.150     schwarze 1138:                mdoc->flags &= ~MDOC_FREECOL;
                   1139:        }
1.1       kristaps 1140: }
                   1141:
1.151     schwarze 1142: static void
1.1       kristaps 1143: blk_part_imp(MACRO_PROT_ARGS)
                   1144: {
1.63      kristaps 1145:        int               la, nl;
1.55      kristaps 1146:        enum margserr     ac;
1.1       kristaps 1147:        char             *p;
1.185     schwarze 1148:        struct roff_node *blk; /* saved block context */
                   1149:        struct roff_node *body; /* saved body context */
                   1150:        struct roff_node *n;
1.1       kristaps 1151:
1.119     schwarze 1152:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1153:
1.43      kristaps 1154:        /*
                   1155:         * A macro that spans to the end of the line.  This is generally
                   1156:         * (but not necessarily) called as the first macro.  The block
                   1157:         * has a head as the immediate child, which is always empty,
                   1158:         * followed by zero or more opening punctuation nodes, then the
                   1159:         * body (which may be empty, depending on the macro), then zero
                   1160:         * or more closing punctuation nodes.
                   1161:         */
1.32      kristaps 1162:
1.150     schwarze 1163:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190   ! schwarze 1164:        rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1165:
1.43      kristaps 1166:        /*
                   1167:         * Open the body scope "on-demand", that is, after we've
                   1168:         * processed all our the leading delimiters (open parenthesis,
                   1169:         * etc.).
                   1170:         */
1.1       kristaps 1171:
1.43      kristaps 1172:        for (body = NULL; ; ) {
1.32      kristaps 1173:                la = *pos;
1.119     schwarze 1174:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1175:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1176:                        break;
                   1177:
1.150     schwarze 1178:                if (body == NULL && ac != ARGS_QWORD &&
                   1179:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1180:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1181:                        continue;
1.123     schwarze 1182:                }
1.1       kristaps 1183:
1.150     schwarze 1184:                if (body == NULL)
1.190   ! schwarze 1185:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1186:
1.153     schwarze 1187:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1188:                        break;
1.1       kristaps 1189:        }
1.150     schwarze 1190:        if (body == NULL)
1.190   ! schwarze 1191:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1192:
1.187     schwarze 1193:        if (find_pending(mdoc, tok, line, ppos, body))
1.183     schwarze 1194:                return;
                   1195:
1.164     schwarze 1196:        rew_last(mdoc, body);
1.150     schwarze 1197:        if (nl)
                   1198:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1199:        rew_pending(mdoc, blk);
1.117     schwarze 1200:
                   1201:        /* Move trailing .Ns out of scope. */
                   1202:
                   1203:        for (n = body->child; n && n->next; n = n->next)
                   1204:                /* Do nothing. */ ;
1.150     schwarze 1205:        if (n && n->tok == MDOC_Ns)
1.119     schwarze 1206:                mdoc_node_relink(mdoc, n);
1.1       kristaps 1207: }
                   1208:
1.151     schwarze 1209: static void
1.1       kristaps 1210: blk_part_exp(MACRO_PROT_ARGS)
                   1211: {
1.60      kristaps 1212:        int               la, nl;
1.55      kristaps 1213:        enum margserr     ac;
1.185     schwarze 1214:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1215:        char             *p;
                   1216:
1.119     schwarze 1217:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1218:
1.43      kristaps 1219:        /*
                   1220:         * The opening of an explicit macro having zero or more leading
                   1221:         * punctuation nodes; a head with optional single element (the
                   1222:         * case of `Eo'); and a body that may be empty.
                   1223:         */
1.32      kristaps 1224:
1.150     schwarze 1225:        mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163     schwarze 1226:        head = NULL;
                   1227:        for (;;) {
1.32      kristaps 1228:                la = *pos;
1.119     schwarze 1229:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1230:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1231:                        break;
1.43      kristaps 1232:
                   1233:                /* Flush out leading punctuation. */
                   1234:
1.150     schwarze 1235:                if (head == NULL && ac != ARGS_QWORD &&
                   1236:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1237:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1238:                        continue;
1.123     schwarze 1239:                }
1.43      kristaps 1240:
1.150     schwarze 1241:                if (head == NULL) {
1.190   ! schwarze 1242:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1243:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1244:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1245:                        rew_last(mdoc, head);
1.190   ! schwarze 1246:                        roff_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1247:                        if (tok == MDOC_Eo)
1.43      kristaps 1248:                                continue;
1.1       kristaps 1249:                }
1.43      kristaps 1250:
1.153     schwarze 1251:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1252:                        break;
1.1       kristaps 1253:        }
                   1254:
1.43      kristaps 1255:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1256:
1.163     schwarze 1257:        if (head == NULL) {
1.190   ! schwarze 1258:                rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
        !          1259:                roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1260:        }
1.150     schwarze 1261:        if (nl)
                   1262:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1263: }
                   1264:
1.151     schwarze 1265: static void
1.1       kristaps 1266: in_line_argn(MACRO_PROT_ARGS)
                   1267: {
1.53      kristaps 1268:        struct mdoc_arg *arg;
                   1269:        char            *p;
1.181     schwarze 1270:        enum margserr    ac;
1.185     schwarze 1271:        int              ntok;
1.181     schwarze 1272:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1273:        int              la, maxargs, nl;
1.1       kristaps 1274:
1.156     schwarze 1275:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1276:
1.46      kristaps 1277:        /*
                   1278:         * A line macro that has a fixed number of arguments (maxargs).
                   1279:         * Only open the scope once the first non-leading-punctuation is
                   1280:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1281:         * keep it open until the maximum number of arguments are
                   1282:         * exhausted.
                   1283:         */
1.1       kristaps 1284:
                   1285:        switch (tok) {
1.131     schwarze 1286:        case MDOC_Ap:
1.1       kristaps 1287:                /* FALLTHROUGH */
1.131     schwarze 1288:        case MDOC_Ns:
1.1       kristaps 1289:                /* FALLTHROUGH */
1.131     schwarze 1290:        case MDOC_Ux:
1.1       kristaps 1291:                maxargs = 0;
                   1292:                break;
1.131     schwarze 1293:        case MDOC_Bx:
1.101     kristaps 1294:                /* FALLTHROUGH */
1.132     schwarze 1295:        case MDOC_Es:
                   1296:                /* FALLTHROUGH */
1.131     schwarze 1297:        case MDOC_Xr:
1.42      kristaps 1298:                maxargs = 2;
                   1299:                break;
1.1       kristaps 1300:        default:
                   1301:                maxargs = 1;
                   1302:                break;
                   1303:        }
                   1304:
1.152     schwarze 1305:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1306:
1.181     schwarze 1307:        state = -1;
1.156     schwarze 1308:        p = NULL;
                   1309:        for (;;) {
1.32      kristaps 1310:                la = *pos;
1.119     schwarze 1311:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1312:
                   1313:                if (ac == ARGS_WORD && state == -1 &&
                   1314:                    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
                   1315:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1316:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1317:                        continue;
                   1318:                }
                   1319:
                   1320:                if (state == -1 && tok != MDOC_In &&
                   1321:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1322:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1323:                        state = 0;
                   1324:                }
                   1325:
1.156     schwarze 1326:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1327:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1328:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1329:                                    mdoc->parse, line, ppos, "Pf %s",
                   1330:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1331:                        break;
1.156     schwarze 1332:                }
1.1       kristaps 1333:
1.181     schwarze 1334:                if (state == maxargs) {
1.149     schwarze 1335:                        rew_elem(mdoc, tok);
1.181     schwarze 1336:                        state = -2;
1.46      kristaps 1337:                }
                   1338:
1.181     schwarze 1339:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.156     schwarze 1340:                    MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1341:
1.150     schwarze 1342:                if (ntok != MDOC_MAX) {
1.181     schwarze 1343:                        if (state >= 0) {
1.149     schwarze 1344:                                rew_elem(mdoc, tok);
1.181     schwarze 1345:                                state = -2;
                   1346:                        }
1.151     schwarze 1347:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1       kristaps 1348:                        break;
                   1349:                }
                   1350:
1.181     schwarze 1351:                if (ac == ARGS_QWORD ||
                   1352:                    mdoc_macros[tok].flags & MDOC_IGNDELIM ||
                   1353:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1354:                        if (state == -1) {
                   1355:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1356:                                state = 1;
                   1357:                        } else if (state >= 0)
                   1358:                                state++;
                   1359:                } else if (state >= 0) {
1.149     schwarze 1360:                        rew_elem(mdoc, tok);
1.181     schwarze 1361:                        state = -2;
1.1       kristaps 1362:                }
1.42      kristaps 1363:
1.150     schwarze 1364:                dword(mdoc, line, la, p, DELIM_MAX,
                   1365:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.1       kristaps 1366:        }
                   1367:
1.181     schwarze 1368:        if (state == -1) {
                   1369:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                   1370:                    line, ppos, mdoc_macronames[tok]);
                   1371:                return;
1.156     schwarze 1372:        }
1.181     schwarze 1373:
                   1374:        if (state == 0 && tok == MDOC_Pf)
                   1375:                append_delims(mdoc, line, pos, buf);
                   1376:        if (state >= 0)
1.149     schwarze 1377:                rew_elem(mdoc, tok);
1.150     schwarze 1378:        if (nl)
                   1379:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1380: }
                   1381:
1.151     schwarze 1382: static void
1.1       kristaps 1383: in_line_eoln(MACRO_PROT_ARGS)
                   1384: {
1.185     schwarze 1385:        struct roff_node        *n;
1.170     schwarze 1386:        struct mdoc_arg         *arg;
1.1       kristaps 1387:
1.170     schwarze 1388:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1389:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1390:                n = mdoc->last;
1.189     schwarze 1391:                if (mdoc->next == ROFF_NEXT_SIBLING)
1.170     schwarze 1392:                        n = n->parent;
                   1393:                if (n->tok == MDOC_Nm)
                   1394:                        rew_last(mdoc, mdoc->last->parent);
1.178     schwarze 1395:        }
                   1396:
1.179     schwarze 1397:        if (buf[*pos] == '\0' &&
                   1398:            (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178     schwarze 1399:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179     schwarze 1400:                    line, ppos, mdoc_macronames[tok]);
1.178     schwarze 1401:                return;
1.170     schwarze 1402:        }
1.90      schwarze 1403:
1.152     schwarze 1404:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1405:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1406:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1407:                return;
                   1408:        rew_elem(mdoc, tok);
                   1409: }
                   1410:
                   1411: /*
                   1412:  * The simplest argument parser available: Parse the remaining
                   1413:  * words until the end of the phrase or line and return 0
                   1414:  * or until the next macro, call that macro, and return 1.
                   1415:  */
                   1416: static int
1.189     schwarze 1417: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154     schwarze 1418: {
                   1419:        int              la;
1.1       kristaps 1420:
                   1421:        for (;;) {
                   1422:                la = *pos;
1.153     schwarze 1423:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154     schwarze 1424:                        return(0);
1.153     schwarze 1425:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154     schwarze 1426:                        return(1);
1.1       kristaps 1427:        }
                   1428: }
                   1429:
1.151     schwarze 1430: static void
1.41      kristaps 1431: ctx_synopsis(MACRO_PROT_ARGS)
                   1432: {
1.60      kristaps 1433:
1.151     schwarze 1434:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1435:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1436:        else if (tok == MDOC_Nm)
                   1437:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1438:        else {
                   1439:                assert(tok == MDOC_Vt);
                   1440:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1441:        }
1.1       kristaps 1442: }
                   1443:
1.24      kristaps 1444: /*
                   1445:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1446:  * They're unusual because they're basically free-form text until a
                   1447:  * macro is encountered.
                   1448:  */
1.151     schwarze 1449: static void
1.75      kristaps 1450: phrase_ta(MACRO_PROT_ARGS)
                   1451: {
1.185     schwarze 1452:        struct roff_node *body, *n;
1.75      kristaps 1453:
1.121     schwarze 1454:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1455:
1.167     schwarze 1456:        body = NULL;
                   1457:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze 1458:                if (n->flags & MDOC_ENDED)
1.167     schwarze 1459:                        continue;
1.184     schwarze 1460:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1461:                        body = n;
                   1462:                if (n->tok == MDOC_Bl)
                   1463:                        break;
                   1464:        }
                   1465:
1.151     schwarze 1466:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1467:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1468:                    line, ppos, "Ta");
1.151     schwarze 1469:                return;
1.121     schwarze 1470:        }
1.75      kristaps 1471:
1.121     schwarze 1472:        /* Advance to the next column. */
1.150     schwarze 1473:
1.167     schwarze 1474:        rew_last(mdoc, body);
1.190   ! schwarze 1475:        roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.154     schwarze 1476:        parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75      kristaps 1477: }

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