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Annotation of mandoc/mdoc_macro.c, Revision 1.229

1.229   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.228 2018/12/21 17:15:19 schwarze Exp $ */
1.1       kristaps    2: /*
1.116     schwarze    3:  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.225     schwarze    4:  * Copyright (c) 2010, 2012-2018 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);
1.219     schwarze   49: static int             find_pending(struct roff_man *, enum roff_tok,
                     50:                                int, int, struct roff_node *);
1.189     schwarze   51: static int             lookup(struct roff_man *, int, int, int, const char *);
1.228     schwarze   52: static int             macro_or_word(MACRO_PROT_ARGS, char *, int);
1.213     schwarze   53: static void            break_intermediate(struct roff_node *,
1.219     schwarze   54:                                struct roff_node *);
                     55: static int             parse_rest(struct roff_man *, enum roff_tok,
                     56:                                int, int *, char *);
                     57: static enum roff_tok   rew_alt(enum roff_tok);
                     58: static void            rew_elem(struct roff_man *, enum roff_tok);
1.189     schwarze   59: static void            rew_last(struct roff_man *, const struct roff_node *);
                     60: static void            rew_pending(struct roff_man *,
                     61:                                const struct roff_node *);
1.1       kristaps   62:
1.225     schwarze   63: static const struct mdoc_macro mdoc_macros[MDOC_MAX - MDOC_Dd] = {
1.1       kristaps   64:        { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
                     65:        { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
                     66:        { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123     schwarze   67:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
                     68:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
                     69:        { in_line_eoln, 0 }, /* Pp */
                     70:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
                     71:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1       kristaps   72:        { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123     schwarze   73:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1       kristaps   74:        { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123     schwarze   75:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
                     76:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
                     77:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
                     78:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.224     schwarze   79:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
                     80:                        MDOC_IGNDELIM | MDOC_JOIN }, /* Ap */
1.1       kristaps   81:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129     schwarze   82:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1       kristaps   83:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123     schwarze   84:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
                     85:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
                     86:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1       kristaps   87:        { in_line_eoln, 0 }, /* Ex */
1.123     schwarze   88:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
                     89:        { in_line_eoln, 0 }, /* Fd */
1.1       kristaps   90:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123     schwarze   91:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
                     92:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128     schwarze   93:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18      kristaps   94:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123     schwarze   95:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
                     96:        { blk_full, MDOC_JOIN }, /* Nd */
                     97:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1       kristaps   98:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132     schwarze   99:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1       kristaps  100:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
                    101:        { in_line_eoln, 0 }, /* Rv */
1.123     schwarze  102:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1       kristaps  103:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123     schwarze  104:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42      kristaps  105:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123     schwarze  106:        { in_line_eoln, MDOC_JOIN }, /* %A */
                    107:        { in_line_eoln, MDOC_JOIN }, /* %B */
                    108:        { in_line_eoln, MDOC_JOIN }, /* %D */
                    109:        { in_line_eoln, MDOC_JOIN }, /* %I */
                    110:        { in_line_eoln, MDOC_JOIN }, /* %J */
1.1       kristaps  111:        { in_line_eoln, 0 }, /* %N */
1.123     schwarze  112:        { in_line_eoln, MDOC_JOIN }, /* %O */
1.1       kristaps  113:        { in_line_eoln, 0 }, /* %P */
1.123     schwarze  114:        { in_line_eoln, MDOC_JOIN }, /* %R */
                    115:        { in_line_eoln, MDOC_JOIN }, /* %T */
1.1       kristaps  116:        { in_line_eoln, 0 }, /* %V */
1.123     schwarze  117:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    118:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
                    119:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    120:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
                    121:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1       kristaps  122:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123     schwarze  123:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    124:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
                    125:        { blk_full, MDOC_EXPLICIT }, /* Bf */
                    126:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    127:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
                    128:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1       kristaps  129:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
                    130:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
                    131:        { in_line_eoln, 0 }, /* Db */
1.123     schwarze  132:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    133:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
                    134:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    135:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
                    136:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
                    137:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
                    138:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
                    139:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1       kristaps  140:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
                    141:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11      kristaps  142:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144     schwarze  143:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123     schwarze  144:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
                    145:                        MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1       kristaps  146:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
                    147:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123     schwarze  148:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    149:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52      kristaps  150:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123     schwarze  151:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    152:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
                    153:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
                    154:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    155:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
                    156:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
                    157:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    158:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
                    159:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
                    160:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1       kristaps  161:        { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123     schwarze  162:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    163:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
                    164:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    165:                        MDOC_EXPLICIT | MDOC_JOIN }, /* So */
                    166:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147     schwarze  167:        { in_line_argn, 0 }, /* Sm */
1.123     schwarze  168:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
                    169:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1       kristaps  170:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123     schwarze  171:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1       kristaps  172:        { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
                    173:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123     schwarze  174:        { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
                    175:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    176:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
                    177:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    178:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
                    179:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    180:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1       kristaps  181:        { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123     schwarze  182:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1       kristaps  183:        { in_line_eoln, 0 }, /* Bt */
                    184:        { in_line_eoln, 0 }, /* Hf */
1.132     schwarze  185:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1       kristaps  186:        { in_line_eoln, 0 }, /* Ud */
1.69      kristaps  187:        { in_line, 0 }, /* Lb */
1.123     schwarze  188:        { in_line_eoln, 0 }, /* Lp */
                    189:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
                    190:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
                    191:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
                    192:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    193:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
                    194:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    195:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
                    196:        { in_line_eoln, MDOC_JOIN }, /* %C */
1.132     schwarze  197:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
                    198:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1       kristaps  199:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123     schwarze  200:        { in_line_eoln, MDOC_JOIN }, /* %Q */
1.37      kristaps  201:        { in_line_eoln, 0 }, /* %U */
1.123     schwarze  202:        { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.1       kristaps  203: };
                    204:
                    205:
1.225     schwarze  206: const struct mdoc_macro *
                    207: mdoc_macro(enum roff_tok tok)
                    208: {
                    209:        assert(tok >= MDOC_Dd && tok < MDOC_MAX);
                    210:        return mdoc_macros + (tok - MDOC_Dd);
                    211: }
                    212:
1.1       kristaps  213: /*
                    214:  * This is called at the end of parsing.  It must traverse up the tree,
                    215:  * closing out open [implicit] scopes.  Obviously, open explicit scopes
                    216:  * are errors.
                    217:  */
1.151     schwarze  218: void
1.195     schwarze  219: mdoc_endparse(struct roff_man *mdoc)
1.1       kristaps  220: {
1.185     schwarze  221:        struct roff_node *n;
1.1       kristaps  222:
                    223:        /* Scan for open explicit scopes. */
                    224:
1.210     schwarze  225:        n = mdoc->last->flags & NODE_VALID ?
1.131     schwarze  226:            mdoc->last->parent : mdoc->last;
1.1       kristaps  227:
1.94      schwarze  228:        for ( ; n; n = n->parent)
1.184     schwarze  229:                if (n->type == ROFFT_BLOCK &&
1.225     schwarze  230:                    mdoc_macro(n->tok)->flags & MDOC_EXPLICIT)
1.227     schwarze  231:                        mandoc_msg(MANDOCERR_BLK_NOEND,
                    232:                            n->line, n->pos, "%s", roff_name[n->tok]);
1.1       kristaps  233:
1.32      kristaps  234:        /* Rewind to the first. */
                    235:
1.229   ! schwarze  236:        rew_last(mdoc, mdoc->meta.first);
1.206     schwarze  237:        mdoc_state_reset(mdoc);
1.1       kristaps  238: }
                    239:
1.32      kristaps  240: /*
1.153     schwarze  241:  * Look up the macro at *p called by "from",
1.191     schwarze  242:  * or as a line macro if from == TOKEN_NONE.
1.32      kristaps  243:  */
1.185     schwarze  244: static int
1.189     schwarze  245: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.28      kristaps  246: {
1.219     schwarze  247:        enum roff_tok    res;
1.1       kristaps  248:
1.205     schwarze  249:        if (mdoc->flags & MDOC_PHRASEQF) {
                    250:                mdoc->flags &= ~MDOC_PHRASEQF;
                    251:                return TOKEN_NONE;
                    252:        }
1.225     schwarze  253:        if (from == TOKEN_NONE || mdoc_macro(from)->flags & MDOC_PARSED) {
1.220     schwarze  254:                res = roffhash_find(mdoc->mdocmac, p, 0);
1.191     schwarze  255:                if (res != TOKEN_NONE) {
1.225     schwarze  256:                        if (mdoc_macro(res)->flags & MDOC_CALLABLE)
1.202     schwarze  257:                                return res;
1.227     schwarze  258:                        mandoc_msg(MANDOCERR_MACRO_CALL, line, ppos, "%s", p);
1.155     schwarze  259:                }
1.153     schwarze  260:        }
1.202     schwarze  261:        return TOKEN_NONE;
1.1       kristaps  262: }
                    263:
1.166     schwarze  264: /*
                    265:  * Rewind up to and including a specific node.
                    266:  */
1.149     schwarze  267: static void
1.189     schwarze  268: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1       kristaps  269: {
                    270:
1.210     schwarze  271:        if (to->flags & NODE_VALID)
1.186     schwarze  272:                return;
                    273:
1.1       kristaps  274:        while (mdoc->last != to) {
1.206     schwarze  275:                mdoc_state(mdoc, mdoc->last);
1.210     schwarze  276:                mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.206     schwarze  277:                mdoc->last = mdoc->last->parent;
1.1       kristaps  278:        }
1.206     schwarze  279:        mdoc_state(mdoc, mdoc->last);
1.210     schwarze  280:        mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.200     schwarze  281:        mdoc->next = ROFF_NEXT_SIBLING;
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:
1.194     schwarze  294:                if (mdoc->last == n) {
                    295:                        switch (n->type) {
                    296:                        case ROFFT_HEAD:
                    297:                                roff_body_alloc(mdoc, n->line, n->pos,
                    298:                                    n->tok);
1.207     schwarze  299:                                break;
1.194     schwarze  300:                        case ROFFT_BLOCK:
                    301:                                break;
                    302:                        default:
                    303:                                return;
                    304:                        }
1.210     schwarze  305:                        if ( ! (n->flags & NODE_BROKEN))
1.194     schwarze  306:                                return;
                    307:                } else
                    308:                        n = mdoc->last;
1.166     schwarze  309:
1.183     schwarze  310:                for (;;) {
                    311:                        if ((n = n->parent) == NULL)
                    312:                                return;
                    313:
1.184     schwarze  314:                        if (n->type == ROFFT_BLOCK ||
                    315:                            n->type == ROFFT_HEAD) {
1.210     schwarze  316:                                if (n->flags & NODE_ENDED)
1.183     schwarze  317:                                        break;
                    318:                                else
                    319:                                        return;
                    320:                        }
                    321:                }
1.166     schwarze  322:        }
                    323: }
                    324:
                    325: /*
1.84      schwarze  326:  * For a block closing macro, return the corresponding opening one.
                    327:  * Otherwise, return the macro itself.
1.32      kristaps  328:  */
1.219     schwarze  329: static enum roff_tok
                    330: rew_alt(enum roff_tok tok)
1.1       kristaps  331: {
                    332:        switch (tok) {
1.131     schwarze  333:        case MDOC_Ac:
1.202     schwarze  334:                return MDOC_Ao;
1.131     schwarze  335:        case MDOC_Bc:
1.202     schwarze  336:                return MDOC_Bo;
1.131     schwarze  337:        case MDOC_Brc:
1.202     schwarze  338:                return MDOC_Bro;
1.131     schwarze  339:        case MDOC_Dc:
1.202     schwarze  340:                return MDOC_Do;
1.131     schwarze  341:        case MDOC_Ec:
1.202     schwarze  342:                return MDOC_Eo;
1.131     schwarze  343:        case MDOC_Ed:
1.202     schwarze  344:                return MDOC_Bd;
1.131     schwarze  345:        case MDOC_Ef:
1.202     schwarze  346:                return MDOC_Bf;
1.131     schwarze  347:        case MDOC_Ek:
1.202     schwarze  348:                return MDOC_Bk;
1.131     schwarze  349:        case MDOC_El:
1.202     schwarze  350:                return MDOC_Bl;
1.131     schwarze  351:        case MDOC_Fc:
1.202     schwarze  352:                return MDOC_Fo;
1.131     schwarze  353:        case MDOC_Oc:
1.202     schwarze  354:                return MDOC_Oo;
1.131     schwarze  355:        case MDOC_Pc:
1.202     schwarze  356:                return MDOC_Po;
1.131     schwarze  357:        case MDOC_Qc:
1.202     schwarze  358:                return MDOC_Qo;
1.131     schwarze  359:        case MDOC_Re:
1.202     schwarze  360:                return MDOC_Rs;
1.131     schwarze  361:        case MDOC_Sc:
1.202     schwarze  362:                return MDOC_So;
1.131     schwarze  363:        case MDOC_Xc:
1.202     schwarze  364:                return MDOC_Xo;
1.1       kristaps  365:        default:
1.202     schwarze  366:                return tok;
1.1       kristaps  367:        }
                    368: }
                    369:
1.149     schwarze  370: static void
1.219     schwarze  371: rew_elem(struct roff_man *mdoc, enum roff_tok tok)
1.1       kristaps  372: {
1.185     schwarze  373:        struct roff_node *n;
1.1       kristaps  374:
                    375:        n = mdoc->last;
1.184     schwarze  376:        if (n->type != ROFFT_ELEM)
1.1       kristaps  377:                n = n->parent;
1.184     schwarze  378:        assert(n->type == ROFFT_ELEM);
1.1       kristaps  379:        assert(tok == n->tok);
1.149     schwarze  380:        rew_last(mdoc, n);
1.1       kristaps  381: }
                    382:
1.213     schwarze  383: static void
                    384: break_intermediate(struct roff_node *n, struct roff_node *breaker)
                    385: {
1.217     schwarze  386:        if (n != breaker &&
                    387:            n->type != ROFFT_BLOCK && n->type != ROFFT_HEAD &&
                    388:            (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
                    389:                n = n->parent;
1.213     schwarze  390:        while (n != breaker) {
                    391:                if ( ! (n->flags & NODE_VALID))
                    392:                        n->flags |= NODE_BROKEN;
                    393:                n = n->parent;
                    394:        }
                    395: }
                    396:
1.83      schwarze  397: /*
1.187     schwarze  398:  * If there is an open sub-block of the target requiring
                    399:  * explicit close-out, postpone closing out the target until
                    400:  * the rew_pending() call closing out the sub-block.
                    401:  */
                    402: static int
1.219     schwarze  403: find_pending(struct roff_man *mdoc, enum roff_tok tok, int line, int ppos,
1.187     schwarze  404:        struct roff_node *target)
                    405: {
                    406:        struct roff_node        *n;
                    407:        int                      irc;
                    408:
1.215     schwarze  409:        if (target->flags & NODE_VALID)
                    410:                return 0;
                    411:
1.187     schwarze  412:        irc = 0;
                    413:        for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
1.213     schwarze  414:                if (n->flags & NODE_ENDED)
1.187     schwarze  415:                        continue;
                    416:                if (n->type == ROFFT_BLOCK &&
1.225     schwarze  417:                    mdoc_macro(n->tok)->flags & MDOC_EXPLICIT) {
1.187     schwarze  418:                        irc = 1;
1.217     schwarze  419:                        break_intermediate(mdoc->last, target);
1.187     schwarze  420:                        if (target->type == ROFFT_HEAD)
1.212     schwarze  421:                                target->flags |= NODE_ENDED;
1.210     schwarze  422:                        else if ( ! (target->flags & NODE_ENDED)) {
1.227     schwarze  423:                                mandoc_msg(MANDOCERR_BLK_NEST,
                    424:                                    line, ppos, "%s breaks %s",
                    425:                                    roff_name[tok], roff_name[n->tok]);
1.187     schwarze  426:                                mdoc_endbody_alloc(mdoc, line, ppos,
1.216     schwarze  427:                                    tok, target);
1.187     schwarze  428:                        }
                    429:                }
                    430:        }
1.202     schwarze  431:        return irc;
1.187     schwarze  432: }
                    433:
                    434: /*
1.105     kristaps  435:  * Allocate a word and check whether it's punctuation or not.
                    436:  * Punctuation consists of those tokens found in mdoc_isdelim().
                    437:  */
1.150     schwarze  438: static void
1.189     schwarze  439: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123     schwarze  440:                enum mdelim d, int may_append)
1.105     kristaps  441: {
1.131     schwarze  442:
1.150     schwarze  443:        if (d == DELIM_MAX)
1.105     kristaps  444:                d = mdoc_isdelim(p);
                    445:
1.123     schwarze  446:        if (may_append &&
1.150     schwarze  447:            ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184     schwarze  448:            d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150     schwarze  449:            mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.192     schwarze  450:                roff_word_append(mdoc, p);
1.150     schwarze  451:                return;
1.123     schwarze  452:        }
                    453:
1.192     schwarze  454:        roff_word_alloc(mdoc, line, col, p);
1.105     kristaps  455:
1.108     schwarze  456:        /*
1.144     schwarze  457:         * If the word consists of a bare delimiter,
                    458:         * flag the new node accordingly,
                    459:         * unless doing so was vetoed by the invoking macro.
                    460:         * Always clear the veto, it is only valid for one word.
1.108     schwarze  461:         */
                    462:
1.144     schwarze  463:        if (d == DELIM_OPEN)
1.210     schwarze  464:                mdoc->last->flags |= NODE_DELIMO;
1.144     schwarze  465:        else if (d == DELIM_CLOSE &&
                    466:            ! (mdoc->flags & MDOC_NODELIMC) &&
1.131     schwarze  467:            mdoc->last->parent->tok != MDOC_Fd)
1.210     schwarze  468:                mdoc->last->flags |= NODE_DELIMC;
1.144     schwarze  469:        mdoc->flags &= ~MDOC_NODELIMC;
1.105     kristaps  470: }
1.1       kristaps  471:
1.150     schwarze  472: static void
1.189     schwarze  473: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1       kristaps  474: {
1.153     schwarze  475:        char            *p;
1.66      kristaps  476:        int              la;
1.228     schwarze  477:        enum margserr    ac;
1.1       kristaps  478:
1.150     schwarze  479:        if (buf[*pos] == '\0')
                    480:                return;
1.1       kristaps  481:
                    482:        for (;;) {
1.66      kristaps  483:                la = *pos;
1.228     schwarze  484:                ac = mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p);
                    485:                if (ac == ARGS_EOLN)
1.1       kristaps  486:                        break;
1.123     schwarze  487:                dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66      kristaps  488:
                    489:                /*
                    490:                 * If we encounter end-of-sentence symbols, then trigger
                    491:                 * the double-space.
                    492:                 *
1.109     kristaps  493:                 * XXX: it's easy to allow this to propagate outward to
1.66      kristaps  494:                 * the last symbol, such that `. )' will cause the
                    495:                 * correct double-spacing.  However, (1) groff isn't
                    496:                 * smart enough to do this and (2) it would require
                    497:                 * knowing which symbols break this behaviour, for
1.109     kristaps  498:                 * example, `.  ;' shouldn't propagate the double-space.
1.66      kristaps  499:                 */
1.150     schwarze  500:
1.127     schwarze  501:                if (mandoc_eos(p, strlen(p)))
1.210     schwarze  502:                        mdoc->last->flags |= NODE_EOS;
1.228     schwarze  503:                if (ac == ARGS_ALLOC)
                    504:                        free(p);
1.1       kristaps  505:        }
                    506: }
                    507:
                    508: /*
1.153     schwarze  509:  * Parse one word.
                    510:  * If it is a macro, call it and return 1.
                    511:  * Otherwise, allocate it and return 0.
                    512:  */
                    513: static int
1.228     schwarze  514: macro_or_word(MACRO_PROT_ARGS, char *p, int parsed)
1.153     schwarze  515: {
1.185     schwarze  516:        int              ntok;
1.153     schwarze  517:
1.228     schwarze  518:        ntok = buf[ppos] == '"' || parsed == 0 ||
                    519:            mdoc->flags & MDOC_PHRASELIT ? TOKEN_NONE :
                    520:            lookup(mdoc, tok, line, ppos, p);
1.153     schwarze  521:
1.191     schwarze  522:        if (ntok == TOKEN_NONE) {
                    523:                dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.225     schwarze  524:                    mdoc_macro(tok)->flags & MDOC_JOIN);
1.202     schwarze  525:                return 0;
1.153     schwarze  526:        } else {
1.219     schwarze  527:                if (tok != TOKEN_NONE &&
1.225     schwarze  528:                    mdoc_macro(tok)->fp == in_line_eoln)
1.153     schwarze  529:                        rew_elem(mdoc, tok);
1.225     schwarze  530:                (*mdoc_macro(ntok)->fp)(mdoc, ntok, line, ppos, pos, buf);
1.191     schwarze  531:                if (tok == TOKEN_NONE)
1.153     schwarze  532:                        append_delims(mdoc, line, pos, buf);
1.202     schwarze  533:                return 1;
1.153     schwarze  534:        }
                    535: }
                    536:
                    537: /*
1.131     schwarze  538:  * Close out block partial/full explicit.
1.1       kristaps  539:  */
1.151     schwarze  540: static void
1.1       kristaps  541: blk_exp_close(MACRO_PROT_ARGS)
                    542: {
1.185     schwarze  543:        struct roff_node *body;         /* Our own body. */
                    544:        struct roff_node *endbody;      /* Our own end marker. */
                    545:        struct roff_node *itblk;        /* An It block starting later. */
                    546:        struct roff_node *later;        /* A sub-block starting later. */
                    547:        struct roff_node *n;            /* Search back to our block. */
1.188     schwarze  548:        struct roff_node *target;       /* For find_pending(). */
1.83      schwarze  549:
1.188     schwarze  550:        int              j, lastarg, maxargs, nl, pending;
1.55      kristaps  551:        enum margserr    ac;
1.219     schwarze  552:        enum roff_tok    atok, ntok;
1.1       kristaps  553:        char            *p;
                    554:
1.119     schwarze  555:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  556:
1.1       kristaps  557:        switch (tok) {
1.131     schwarze  558:        case MDOC_Ec:
1.1       kristaps  559:                maxargs = 1;
                    560:                break;
1.131     schwarze  561:        case MDOC_Ek:
1.125     schwarze  562:                mdoc->flags &= ~MDOC_KEEP;
1.151     schwarze  563:                /* FALLTHROUGH */
1.1       kristaps  564:        default:
                    565:                maxargs = 0;
                    566:                break;
                    567:        }
                    568:
1.209     schwarze  569:        /* Search backwards for the beginning of our own body. */
                    570:
                    571:        atok = rew_alt(tok);
                    572:        body = NULL;
                    573:        for (n = mdoc->last; n; n = n->parent) {
1.210     schwarze  574:                if (n->flags & NODE_ENDED || n->tok != atok ||
1.209     schwarze  575:                    n->type != ROFFT_BODY || n->end != ENDBODY_NOT)
                    576:                        continue;
                    577:                body = n;
                    578:                break;
                    579:        }
                    580:
1.83      schwarze  581:        /*
                    582:         * Search backwards for beginnings of blocks,
                    583:         * both of our own and of pending sub-blocks.
                    584:         */
1.151     schwarze  585:
1.209     schwarze  586:        endbody = itblk = later = NULL;
1.119     schwarze  587:        for (n = mdoc->last; n; n = n->parent) {
1.213     schwarze  588:                if (n->flags & NODE_ENDED)
1.83      schwarze  589:                        continue;
                    590:
1.209     schwarze  591:                /*
1.211     schwarze  592:                 * Mismatching end macros can never break anything
1.209     schwarze  593:                 * and we only care about the breaking of BLOCKs.
                    594:                 */
1.83      schwarze  595:
1.211     schwarze  596:                if (body == NULL || n->type != ROFFT_BLOCK)
1.83      schwarze  597:                        continue;
1.160     schwarze  598:
1.211     schwarze  599:                /*
                    600:                 * SYNOPSIS name blocks can not be broken themselves,
                    601:                 * but they do get broken together with a broken child.
                    602:                 */
                    603:
                    604:                if (n->tok == MDOC_Nm) {
                    605:                        if (later != NULL)
                    606:                                n->flags |= NODE_BROKEN | NODE_ENDED;
                    607:                        continue;
                    608:                }
                    609:
1.160     schwarze  610:                if (n->tok == MDOC_It) {
1.171     schwarze  611:                        itblk = n;
1.160     schwarze  612:                        continue;
                    613:                }
                    614:
1.83      schwarze  615:                if (atok == n->tok) {
                    616:
                    617:                        /*
                    618:                         * Found the start of our own block.
                    619:                         * When there is no pending sub block,
                    620:                         * just proceed to closing out.
                    621:                         */
1.151     schwarze  622:
1.160     schwarze  623:                        if (later == NULL ||
1.171     schwarze  624:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  625:                                break;
                    626:
1.131     schwarze  627:                        /*
1.167     schwarze  628:                         * When there is a pending sub block, postpone
                    629:                         * closing out the current block until the
                    630:                         * rew_pending() closing out the sub-block.
1.83      schwarze  631:                         * Mark the place where the formatting - but not
                    632:                         * the scope - of the current block ends.
                    633:                         */
1.151     schwarze  634:
1.227     schwarze  635:                        mandoc_msg(MANDOCERR_BLK_NEST,
1.183     schwarze  636:                            line, ppos, "%s breaks %s",
1.219     schwarze  637:                            roff_name[atok], roff_name[later->tok]);
1.183     schwarze  638:
1.166     schwarze  639:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.216     schwarze  640:                            atok, body);
1.151     schwarze  641:
1.183     schwarze  642:                        if (tok == MDOC_El)
1.210     schwarze  643:                                itblk->flags |= NODE_ENDED | NODE_BROKEN;
1.183     schwarze  644:
1.151     schwarze  645:                        /*
                    646:                         * If a block closing macro taking arguments
                    647:                         * breaks another block, put the arguments
1.166     schwarze  648:                         * into the end marker.
1.151     schwarze  649:                         */
                    650:
1.166     schwarze  651:                        if (maxargs)
1.189     schwarze  652:                                mdoc->next = ROFF_NEXT_CHILD;
1.83      schwarze  653:                        break;
1.182     schwarze  654:                }
                    655:
1.214     schwarze  656:                /*
                    657:                 * Explicit blocks close out description lines, but
                    658:                 * even those can get broken together with a child.
                    659:                 */
1.182     schwarze  660:
                    661:                if (n->tok == MDOC_Nd) {
1.214     schwarze  662:                        if (later != NULL)
                    663:                                n->flags |= NODE_BROKEN | NODE_ENDED;
                    664:                        else
                    665:                                rew_last(mdoc, n);
1.182     schwarze  666:                        continue;
1.83      schwarze  667:                }
                    668:
1.183     schwarze  669:                /* Breaking an open sub block. */
1.151     schwarze  670:
1.213     schwarze  671:                break_intermediate(mdoc->last, body);
1.210     schwarze  672:                n->flags |= NODE_BROKEN;
1.183     schwarze  673:                if (later == NULL)
1.83      schwarze  674:                        later = n;
                    675:        }
1.166     schwarze  676:
                    677:        if (body == NULL) {
1.227     schwarze  678:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, line, ppos,
                    679:                    "%s", roff_name[tok]);
1.166     schwarze  680:                if (maxargs && endbody == NULL) {
                    681:                        /*
                    682:                         * Stray .Ec without previous .Eo:
                    683:                         * Break the output line, keep the arguments.
                    684:                         */
1.221     schwarze  685:                        roff_elem_alloc(mdoc, line, ppos, ROFF_br);
                    686:                        rew_elem(mdoc, ROFF_br);
1.166     schwarze  687:                }
                    688:        } else if (endbody == NULL) {
                    689:                rew_last(mdoc, body);
                    690:                if (maxargs)
                    691:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    692:        }
1.83      schwarze  693:
1.225     schwarze  694:        if ((mdoc_macro(tok)->flags & MDOC_PARSED) == 0) {
1.150     schwarze  695:                if (buf[*pos] != '\0')
1.227     schwarze  696:                        mandoc_msg(MANDOCERR_ARG_SKIP, line, ppos,
                    697:                            "%s %s", roff_name[tok], buf + *pos);
1.171     schwarze  698:                if (endbody == NULL && n != NULL)
1.167     schwarze  699:                        rew_pending(mdoc, n);
1.151     schwarze  700:                return;
1.1       kristaps  701:        }
                    702:
1.166     schwarze  703:        if (endbody != NULL)
                    704:                n = endbody;
1.197     schwarze  705:
                    706:        ntok = TOKEN_NONE;
1.148     schwarze  707:        for (j = 0; ; j++) {
1.1       kristaps  708:                lastarg = *pos;
                    709:
1.186     schwarze  710:                if (j == maxargs && n != NULL)
                    711:                        rew_last(mdoc, n);
1.1       kristaps  712:
1.119     schwarze  713:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  714:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  715:                        break;
                    716:
1.224     schwarze  717:                ntok = lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  718:
1.191     schwarze  719:                if (ntok == TOKEN_NONE) {
1.150     schwarze  720:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
1.225     schwarze  721:                            mdoc_macro(tok)->flags & MDOC_JOIN);
1.228     schwarze  722:                        if (ac == ARGS_ALLOC)
                    723:                                free(p);
1.54      kristaps  724:                        continue;
                    725:                }
1.228     schwarze  726:                if (ac == ARGS_ALLOC)
                    727:                        free(p);
1.1       kristaps  728:
1.186     schwarze  729:                if (n != NULL)
                    730:                        rew_last(mdoc, n);
1.122     schwarze  731:                mdoc->flags &= ~MDOC_NEWLINE;
1.225     schwarze  732:                (*mdoc_macro(ntok)->fp)(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  733:                break;
1.1       kristaps  734:        }
                    735:
1.188     schwarze  736:        if (n != NULL) {
1.212     schwarze  737:                pending = 0;
1.210     schwarze  738:                if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
1.188     schwarze  739:                        target = n;
                    740:                        do
                    741:                                target = target->parent;
1.210     schwarze  742:                        while ( ! (target->flags & NODE_ENDED));
1.215     schwarze  743:                        pending = find_pending(mdoc, ntok, line, ppos, target);
1.212     schwarze  744:                }
1.188     schwarze  745:                if ( ! pending)
                    746:                        rew_pending(mdoc, n);
                    747:        }
1.150     schwarze  748:        if (nl)
                    749:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  750: }
                    751:
1.151     schwarze  752: static void
1.1       kristaps  753: in_line(MACRO_PROT_ARGS)
                    754: {
1.144     schwarze  755:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.219     schwarze  756:        enum roff_tok    ntok;
1.55      kristaps  757:        enum margserr    ac;
1.67      schwarze  758:        enum mdelim      d;
1.53      kristaps  759:        struct mdoc_arg *arg;
                    760:        char            *p;
1.1       kristaps  761:
1.119     schwarze  762:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  763:
1.4       kristaps  764:        /*
                    765:         * Whether we allow ignored elements (those without content,
                    766:         * usually because of reserved words) to squeak by.
                    767:         */
1.45      kristaps  768:
1.4       kristaps  769:        switch (tok) {
1.131     schwarze  770:        case MDOC_An:
                    771:        case MDOC_Ar:
                    772:        case MDOC_Fl:
                    773:        case MDOC_Mt:
                    774:        case MDOC_Nm:
                    775:        case MDOC_Pa:
1.4       kristaps  776:                nc = 1;
                    777:                break;
                    778:        default:
                    779:                nc = 0;
                    780:                break;
                    781:        }
                    782:
1.152     schwarze  783:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  784:
1.144     schwarze  785:        d = DELIM_NONE;
                    786:        firstarg = 1;
1.142     schwarze  787:        mayopen = 1;
1.70      kristaps  788:        for (cnt = scope = 0;; ) {
1.1       kristaps  789:                la = *pos;
1.119     schwarze  790:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  791:
1.144     schwarze  792:                /*
                    793:                 * At the end of a macro line,
                    794:                 * opening delimiters do not suppress spacing.
                    795:                 */
                    796:
                    797:                if (ac == ARGS_EOLN) {
                    798:                        if (d == DELIM_OPEN)
1.210     schwarze  799:                                mdoc->last->flags &= ~NODE_DELIMO;
1.1       kristaps  800:                        break;
1.144     schwarze  801:                }
                    802:
                    803:                /*
                    804:                 * The rest of the macro line is only punctuation,
                    805:                 * to be handled by append_delims().
                    806:                 * If there were no other arguments,
                    807:                 * do not allow the first one to suppress spacing,
                    808:                 * even if it turns out to be a closing one.
                    809:                 */
                    810:
                    811:                if (ac == ARGS_PUNCT) {
1.176     schwarze  812:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  813:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  814:                        break;
1.144     schwarze  815:                }
1.1       kristaps  816:
1.224     schwarze  817:                ntok = (tok == MDOC_Fn && !cnt) ?
1.191     schwarze  818:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1       kristaps  819:
1.131     schwarze  820:                /*
1.4       kristaps  821:                 * In this case, we've located a submacro and must
                    822:                 * execute it.  Close out scope, if open.  If no
                    823:                 * elements have been generated, either create one (nc)
                    824:                 * or raise a warning.
                    825:                 */
1.1       kristaps  826:
1.191     schwarze  827:                if (ntok != TOKEN_NONE) {
1.149     schwarze  828:                        if (scope)
                    829:                                rew_elem(mdoc, tok);
1.150     schwarze  830:                        if (nc && ! cnt) {
                    831:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  832:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  833:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  834:                                mdoc_argv_free(arg);
1.135     schwarze  835:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
1.227     schwarze  836:                                    line, ppos, "%s", roff_name[tok]);
1.7       kristaps  837:                        }
1.225     schwarze  838:                        (*mdoc_macro(ntok)->fp)(mdoc, ntok,
                    839:                            line, la, pos, buf);
1.150     schwarze  840:                        if (nl)
                    841:                                append_delims(mdoc, line, pos, buf);
1.228     schwarze  842:                        if (ac == ARGS_ALLOC)
                    843:                                free(p);
1.151     schwarze  844:                        return;
1.131     schwarze  845:                }
1.1       kristaps  846:
1.131     schwarze  847:                /*
1.224     schwarze  848:                 * Handle punctuation.  Set up our scope, if a word;
                    849:                 * rewind the scope, if a delimiter; then append the word.
1.4       kristaps  850:                 */
1.1       kristaps  851:
1.224     schwarze  852:                if ((d = mdoc_isdelim(p)) != DELIM_NONE) {
1.70      kristaps  853:                        /*
                    854:                         * If we encounter closing punctuation, no word
1.144     schwarze  855:                         * has been emitted, no scope is open, and we're
1.70      kristaps  856:                         * allowed to have an empty element, then start
1.142     schwarze  857:                         * a new scope.
1.70      kristaps  858:                         */
1.142     schwarze  859:                        if ((d == DELIM_CLOSE ||
                    860:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  861:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  862:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  863:                                scope = 1;
1.142     schwarze  864:                                cnt++;
1.150     schwarze  865:                                if (tok == MDOC_Nm)
1.142     schwarze  866:                                        mayopen = 0;
1.70      kristaps  867:                        }
                    868:                        /*
                    869:                         * Close out our scope, if one is open, before
                    870:                         * any punctuation.
                    871:                         */
1.224     schwarze  872:                        if (scope && tok != MDOC_Lk) {
1.149     schwarze  873:                                rew_elem(mdoc, tok);
1.224     schwarze  874:                                scope = 0;
                    875:                                if (tok == MDOC_Fn)
                    876:                                        mayopen = 0;
                    877:                        }
1.142     schwarze  878:                } else if (mayopen && !scope) {
1.150     schwarze  879:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  880:                        scope = 1;
1.142     schwarze  881:                        cnt++;
1.1       kristaps  882:                }
1.105     kristaps  883:
1.150     schwarze  884:                dword(mdoc, line, la, p, d,
1.225     schwarze  885:                    mdoc_macro(tok)->flags & MDOC_JOIN);
1.39      kristaps  886:
1.228     schwarze  887:                if (ac == ARGS_ALLOC)
                    888:                        free(p);
                    889:
1.39      kristaps  890:                /*
1.144     schwarze  891:                 * If the first argument is a closing delimiter,
                    892:                 * do not suppress spacing before it.
                    893:                 */
                    894:
                    895:                if (firstarg && d == DELIM_CLOSE && !nc)
1.210     schwarze  896:                        mdoc->last->flags &= ~NODE_DELIMC;
1.144     schwarze  897:                firstarg = 0;
                    898:
                    899:                /*
1.39      kristaps  900:                 * `Fl' macros have their scope re-opened with each new
                    901:                 * word so that the `-' can be added to each one without
                    902:                 * having to parse out spaces.
                    903:                 */
1.150     schwarze  904:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  905:                        rew_elem(mdoc, tok);
1.70      kristaps  906:                        scope = 0;
1.39      kristaps  907:                }
1.1       kristaps  908:        }
                    909:
1.218     schwarze  910:        if (scope && tok != MDOC_Lk) {
1.149     schwarze  911:                rew_elem(mdoc, tok);
1.218     schwarze  912:                scope = 0;
                    913:        }
1.4       kristaps  914:
                    915:        /*
                    916:         * If no elements have been collected and we're allowed to have
                    917:         * empties (nc), open a scope and close it out.  Otherwise,
                    918:         * raise a warning.
                    919:         */
1.45      kristaps  920:
1.150     schwarze  921:        if ( ! cnt) {
                    922:                if (nc) {
                    923:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    924:                        rew_last(mdoc, mdoc->last);
                    925:                } else {
                    926:                        mdoc_argv_free(arg);
1.227     schwarze  927:                        mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    928:                            line, ppos, "%s", roff_name[tok]);
1.150     schwarze  929:                }
1.7       kristaps  930:        }
1.150     schwarze  931:        if (nl)
                    932:                append_delims(mdoc, line, pos, buf);
1.218     schwarze  933:        if (scope)
                    934:                rew_elem(mdoc, tok);
1.1       kristaps  935: }
                    936:
1.151     schwarze  937: static void
1.1       kristaps  938: blk_full(MACRO_PROT_ARGS)
                    939: {
1.228     schwarze  940:        int               done, la, nl, parsed;
1.1       kristaps  941:        struct mdoc_arg  *arg;
1.185     schwarze  942:        struct roff_node *blk; /* Our own or a broken block. */
                    943:        struct roff_node *head; /* Our own head. */
                    944:        struct roff_node *body; /* Our own body. */
                    945:        struct roff_node *n;
1.59      kristaps  946:        enum margserr     ac, lac;
1.1       kristaps  947:        char             *p;
                    948:
1.119     schwarze  949:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  950:
1.177     schwarze  951:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
1.227     schwarze  952:                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    953:                    line, ppos, "%s", roff_name[tok]);
1.177     schwarze  954:                return;
                    955:        }
                    956:
1.225     schwarze  957:        if ((mdoc_macro(tok)->flags & MDOC_EXPLICIT) == 0) {
1.171     schwarze  958:
                    959:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    960:
                    961:                blk = NULL;
                    962:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze  963:                        if (n->flags & NODE_ENDED) {
                    964:                                if ( ! (n->flags & NODE_VALID))
                    965:                                        n->flags |= NODE_BROKEN;
1.183     schwarze  966:                                continue;
                    967:                        }
1.184     schwarze  968:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  969:                                continue;
1.183     schwarze  970:
1.171     schwarze  971:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    972:                                if (blk != NULL) {
1.227     schwarze  973:                                        mandoc_msg(MANDOCERR_BLK_BROKEN,
                    974:                                            line, ppos, "It breaks %s",
1.219     schwarze  975:                                            roff_name[blk->tok]);
1.171     schwarze  976:                                        rew_pending(mdoc, blk);
                    977:                                }
                    978:                                break;
                    979:                        }
                    980:
1.225     schwarze  981:                        if (mdoc_macro(n->tok)->flags & MDOC_EXPLICIT) {
1.171     schwarze  982:                                switch (tok) {
                    983:                                case MDOC_Sh:
                    984:                                case MDOC_Ss:
1.227     schwarze  985:                                        mandoc_msg(MANDOCERR_BLK_BROKEN,
                    986:                                            line, ppos,
1.219     schwarze  987:                                            "%s breaks %s", roff_name[tok],
                    988:                                            roff_name[n->tok]);
1.171     schwarze  989:                                        rew_pending(mdoc, n);
1.180     schwarze  990:                                        n = mdoc->last;
1.171     schwarze  991:                                        continue;
                    992:                                case MDOC_It:
                    993:                                        /* Delay in case it's astray. */
                    994:                                        blk = n;
                    995:                                        continue;
                    996:                                default:
                    997:                                        break;
                    998:                                }
                    999:                                break;
                   1000:                        }
                   1001:
                   1002:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze 1003:
1.171     schwarze 1004:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                   1005:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                   1006:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze 1007:                                break;
1.171     schwarze 1008:
                   1009:                        /* Item breaking an explicit block. */
                   1010:
                   1011:                        if (blk != NULL) {
1.227     schwarze 1012:                                mandoc_msg(MANDOCERR_BLK_BROKEN, line, ppos,
1.219     schwarze 1013:                                    "It breaks %s", roff_name[blk->tok]);
1.171     schwarze 1014:                                rew_pending(mdoc, blk);
1.172     schwarze 1015:                                blk = NULL;
1.171     schwarze 1016:                        }
                   1017:
                   1018:                        /* Close out prior implicit scopes. */
                   1019:
1.211     schwarze 1020:                        rew_pending(mdoc, n);
1.171     schwarze 1021:                }
                   1022:
                   1023:                /* Skip items outside lists. */
                   1024:
                   1025:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.227     schwarze 1026:                        mandoc_msg(MANDOCERR_IT_STRAY,
1.138     schwarze 1027:                            line, ppos, "It %s", buf + *pos);
1.221     schwarze 1028:                        roff_elem_alloc(mdoc, line, ppos, ROFF_br);
                   1029:                        rew_elem(mdoc, ROFF_br);
1.151     schwarze 1030:                        return;
1.138     schwarze 1031:                }
1.1       kristaps 1032:        }
                   1033:
1.45      kristaps 1034:        /*
1.109     kristaps 1035:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps 1036:         * macro openings.  Implicit ones first close out prior scope
                   1037:         * (seen above).  Delay opening the head until necessary to
                   1038:         * allow leading punctuation to print.  Special consideration
                   1039:         * for `It -column', which has phrase-part syntax instead of
                   1040:         * regular child nodes.
                   1041:         */
                   1042:
1.152     schwarze 1043:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze 1044:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps 1045:        head = body = NULL;
1.115     schwarze 1046:
                   1047:        /*
                   1048:         * Exception: Heads of `It' macros in `-diag' lists are not
                   1049:         * parsed, even though `It' macros in general are parsed.
                   1050:         */
1.151     schwarze 1051:
1.153     schwarze 1052:        parsed = tok != MDOC_It ||
                   1053:            mdoc->last->parent->tok != MDOC_Bl ||
                   1054:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps 1055:
1.45      kristaps 1056:        /*
                   1057:         * The `Nd' macro has all arguments in its body: it's a hybrid
                   1058:         * of block partial-explicit and full-implicit.  Stupid.
                   1059:         */
1.19      kristaps 1060:
1.150     schwarze 1061:        if (tok == MDOC_Nd) {
1.190     schwarze 1062:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze 1063:                rew_last(mdoc, head);
1.190     schwarze 1064:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze 1065:        }
                   1066:
1.150     schwarze 1067:        if (tok == MDOC_Bk)
1.123     schwarze 1068:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps 1069:
1.205     schwarze 1070:        ac = ARGS_EOLN;
1.150     schwarze 1071:        for (;;) {
1.205     schwarze 1072:
                   1073:                /*
                   1074:                 * If we are right after a tab character,
                   1075:                 * do not parse the first word for macros.
                   1076:                 */
                   1077:
                   1078:                if (mdoc->flags & MDOC_PHRASEQN) {
                   1079:                        mdoc->flags &= ~MDOC_PHRASEQN;
                   1080:                        mdoc->flags |= MDOC_PHRASEQF;
                   1081:                }
                   1082:
1.45      kristaps 1083:                la = *pos;
1.150     schwarze 1084:                lac = ac;
1.119     schwarze 1085:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1086:                if (ac == ARGS_EOLN) {
1.205     schwarze 1087:                        if (lac != ARGS_PHRASE ||
                   1088:                            ! (mdoc->flags & MDOC_PHRASEQF))
1.75      kristaps 1089:                                break;
1.205     schwarze 1090:
1.75      kristaps 1091:                        /*
1.205     schwarze 1092:                         * This line ends in a tab; start the next
                   1093:                         * column now, with a leading blank.
1.75      kristaps 1094:                         */
1.205     schwarze 1095:
1.167     schwarze 1096:                        if (body != NULL)
                   1097:                                rew_last(mdoc, body);
1.190     schwarze 1098:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.205     schwarze 1099:                        roff_word_alloc(mdoc, line, ppos, "\\&");
1.1       kristaps 1100:                        break;
1.75      kristaps 1101:                }
1.205     schwarze 1102:
1.174     schwarze 1103:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
1.227     schwarze 1104:                        mandoc_msg(MANDOCERR_ARG_EXCESS, line, la,
                   1105:                            "%s ... %s", roff_name[tok], buf + la);
1.228     schwarze 1106:                        if (ac == ARGS_ALLOC)
                   1107:                                free(p);
1.174     schwarze 1108:                        break;
                   1109:                }
1.173     schwarze 1110:                if (tok == MDOC_Rs) {
1.227     schwarze 1111:                        mandoc_msg(MANDOCERR_ARG_SKIP,
1.173     schwarze 1112:                            line, la, "Rs %s", buf + la);
1.228     schwarze 1113:                        if (ac == ARGS_ALLOC)
                   1114:                                free(p);
1.173     schwarze 1115:                        break;
                   1116:                }
                   1117:                if (ac == ARGS_PUNCT)
                   1118:                        break;
1.45      kristaps 1119:
1.131     schwarze 1120:                /*
1.73      kristaps 1121:                 * Emit leading punctuation (i.e., punctuation before
1.184     schwarze 1122:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1123:                 */
1.45      kristaps 1124:
1.150     schwarze 1125:                if (head == NULL &&
                   1126:                    ac != ARGS_PHRASE &&
                   1127:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1128:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.228     schwarze 1129:                        if (ac == ARGS_ALLOC)
                   1130:                                free(p);
1.45      kristaps 1131:                        continue;
                   1132:                }
                   1133:
1.74      kristaps 1134:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1135:
1.150     schwarze 1136:                if (head == NULL)
1.190     schwarze 1137:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1138:
1.205     schwarze 1139:                if (ac == ARGS_PHRASE) {
1.151     schwarze 1140:
1.73      kristaps 1141:                        /*
1.74      kristaps 1142:                         * If we haven't opened a body yet, rewind the
                   1143:                         * head; if we have, rewind that instead.
                   1144:                         */
                   1145:
1.167     schwarze 1146:                        rew_last(mdoc, body == NULL ? head : body);
1.190     schwarze 1147:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1148:
1.205     schwarze 1149:                        /* Process to the tab or to the end of the line. */
1.74      kristaps 1150:
1.205     schwarze 1151:                        mdoc->flags |= MDOC_PHRASE;
1.191     schwarze 1152:                        parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.205     schwarze 1153:                        mdoc->flags &= ~MDOC_PHRASE;
1.204     schwarze 1154:
                   1155:                        /* There may have been `Ta' macros. */
                   1156:
                   1157:                        while (body->next != NULL)
                   1158:                                body = body->next;
1.1       kristaps 1159:                        continue;
                   1160:                }
                   1161:
1.228     schwarze 1162:                done = macro_or_word(mdoc, tok, line, la, pos, buf, p, parsed);
                   1163:                if (ac == ARGS_ALLOC)
                   1164:                        free(p);
                   1165:                if (done)
1.151     schwarze 1166:                        break;
1.45      kristaps 1167:        }
1.1       kristaps 1168:
1.210     schwarze 1169:        if (blk->flags & NODE_VALID)
1.165     schwarze 1170:                return;
1.150     schwarze 1171:        if (head == NULL)
1.190     schwarze 1172:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1173:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1174:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1175:        if (body != NULL)
1.77      kristaps 1176:                goto out;
1.187     schwarze 1177:        if (find_pending(mdoc, tok, line, ppos, head))
1.183     schwarze 1178:                return;
1.47      kristaps 1179:
1.45      kristaps 1180:        /* Close out scopes to remain in a consistent state. */
                   1181:
1.167     schwarze 1182:        rew_last(mdoc, head);
1.190     schwarze 1183:        body = roff_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1184: out:
1.150     schwarze 1185:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1186:                rew_last(mdoc, body);
                   1187:                rew_last(mdoc, blk);
1.150     schwarze 1188:                mdoc->flags &= ~MDOC_FREECOL;
                   1189:        }
1.1       kristaps 1190: }
                   1191:
1.151     schwarze 1192: static void
1.1       kristaps 1193: blk_part_imp(MACRO_PROT_ARGS)
                   1194: {
1.228     schwarze 1195:        int               done, la, nl;
1.55      kristaps 1196:        enum margserr     ac;
1.1       kristaps 1197:        char             *p;
1.185     schwarze 1198:        struct roff_node *blk; /* saved block context */
                   1199:        struct roff_node *body; /* saved body context */
                   1200:        struct roff_node *n;
1.1       kristaps 1201:
1.119     schwarze 1202:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1203:
1.43      kristaps 1204:        /*
                   1205:         * A macro that spans to the end of the line.  This is generally
                   1206:         * (but not necessarily) called as the first macro.  The block
                   1207:         * has a head as the immediate child, which is always empty,
                   1208:         * followed by zero or more opening punctuation nodes, then the
                   1209:         * body (which may be empty, depending on the macro), then zero
                   1210:         * or more closing punctuation nodes.
                   1211:         */
1.32      kristaps 1212:
1.150     schwarze 1213:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190     schwarze 1214:        rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1215:
1.43      kristaps 1216:        /*
                   1217:         * Open the body scope "on-demand", that is, after we've
                   1218:         * processed all our the leading delimiters (open parenthesis,
                   1219:         * etc.).
                   1220:         */
1.1       kristaps 1221:
1.43      kristaps 1222:        for (body = NULL; ; ) {
1.32      kristaps 1223:                la = *pos;
1.119     schwarze 1224:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1225:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1226:                        break;
                   1227:
1.224     schwarze 1228:                if (body == NULL && mdoc_isdelim(p) == DELIM_OPEN) {
1.150     schwarze 1229:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.228     schwarze 1230:                        if (ac == ARGS_ALLOC)
                   1231:                                free(p);
1.1       kristaps 1232:                        continue;
1.123     schwarze 1233:                }
1.1       kristaps 1234:
1.150     schwarze 1235:                if (body == NULL)
1.190     schwarze 1236:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1237:
1.228     schwarze 1238:                done = macro_or_word(mdoc, tok, line, la, pos, buf, p, 1);
                   1239:                if (ac == ARGS_ALLOC)
                   1240:                        free(p);
                   1241:                if (done)
1.151     schwarze 1242:                        break;
1.1       kristaps 1243:        }
1.150     schwarze 1244:        if (body == NULL)
1.190     schwarze 1245:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1246:
1.187     schwarze 1247:        if (find_pending(mdoc, tok, line, ppos, body))
1.183     schwarze 1248:                return;
                   1249:
1.164     schwarze 1250:        rew_last(mdoc, body);
1.150     schwarze 1251:        if (nl)
                   1252:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1253:        rew_pending(mdoc, blk);
1.117     schwarze 1254:
                   1255:        /* Move trailing .Ns out of scope. */
                   1256:
                   1257:        for (n = body->child; n && n->next; n = n->next)
                   1258:                /* Do nothing. */ ;
1.150     schwarze 1259:        if (n && n->tok == MDOC_Ns)
1.226     schwarze 1260:                roff_node_relink(mdoc, n);
1.1       kristaps 1261: }
                   1262:
1.151     schwarze 1263: static void
1.1       kristaps 1264: blk_part_exp(MACRO_PROT_ARGS)
                   1265: {
1.228     schwarze 1266:        int               done, la, nl;
1.55      kristaps 1267:        enum margserr     ac;
1.185     schwarze 1268:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1269:        char             *p;
                   1270:
1.119     schwarze 1271:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1272:
1.43      kristaps 1273:        /*
                   1274:         * The opening of an explicit macro having zero or more leading
                   1275:         * punctuation nodes; a head with optional single element (the
                   1276:         * case of `Eo'); and a body that may be empty.
                   1277:         */
1.32      kristaps 1278:
1.193     schwarze 1279:        roff_block_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1280:        head = NULL;
                   1281:        for (;;) {
1.32      kristaps 1282:                la = *pos;
1.119     schwarze 1283:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1284:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1285:                        break;
1.43      kristaps 1286:
                   1287:                /* Flush out leading punctuation. */
                   1288:
1.224     schwarze 1289:                if (head == NULL && mdoc_isdelim(p) == DELIM_OPEN) {
1.150     schwarze 1290:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.228     schwarze 1291:                        if (ac == ARGS_ALLOC)
                   1292:                                free(p);
1.43      kristaps 1293:                        continue;
1.123     schwarze 1294:                }
1.43      kristaps 1295:
1.150     schwarze 1296:                if (head == NULL) {
1.190     schwarze 1297:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1298:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1299:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1300:                        rew_last(mdoc, head);
1.190     schwarze 1301:                        roff_body_alloc(mdoc, line, ppos, tok);
1.228     schwarze 1302:                        if (tok == MDOC_Eo) {
                   1303:                                if (ac == ARGS_ALLOC)
                   1304:                                        free(p);
1.43      kristaps 1305:                                continue;
1.228     schwarze 1306:                        }
1.1       kristaps 1307:                }
1.43      kristaps 1308:
1.228     schwarze 1309:                done = macro_or_word(mdoc, tok, line, la, pos, buf, p, 1);
                   1310:                if (ac == ARGS_ALLOC)
                   1311:                        free(p);
                   1312:                if (done)
1.151     schwarze 1313:                        break;
1.1       kristaps 1314:        }
                   1315:
1.43      kristaps 1316:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1317:
1.163     schwarze 1318:        if (head == NULL) {
1.190     schwarze 1319:                rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
                   1320:                roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1321:        }
1.150     schwarze 1322:        if (nl)
                   1323:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1324: }
                   1325:
1.151     schwarze 1326: static void
1.1       kristaps 1327: in_line_argn(MACRO_PROT_ARGS)
                   1328: {
1.53      kristaps 1329:        struct mdoc_arg *arg;
                   1330:        char            *p;
1.181     schwarze 1331:        enum margserr    ac;
1.219     schwarze 1332:        enum roff_tok    ntok;
1.181     schwarze 1333:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1334:        int              la, maxargs, nl;
1.1       kristaps 1335:
1.156     schwarze 1336:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1337:
1.46      kristaps 1338:        /*
                   1339:         * A line macro that has a fixed number of arguments (maxargs).
                   1340:         * Only open the scope once the first non-leading-punctuation is
                   1341:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1342:         * keep it open until the maximum number of arguments are
                   1343:         * exhausted.
                   1344:         */
1.1       kristaps 1345:
                   1346:        switch (tok) {
1.131     schwarze 1347:        case MDOC_Ap:
                   1348:        case MDOC_Ns:
                   1349:        case MDOC_Ux:
1.1       kristaps 1350:                maxargs = 0;
                   1351:                break;
1.131     schwarze 1352:        case MDOC_Bx:
1.132     schwarze 1353:        case MDOC_Es:
1.131     schwarze 1354:        case MDOC_Xr:
1.42      kristaps 1355:                maxargs = 2;
                   1356:                break;
1.1       kristaps 1357:        default:
                   1358:                maxargs = 1;
                   1359:                break;
                   1360:        }
                   1361:
1.152     schwarze 1362:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1363:
1.181     schwarze 1364:        state = -1;
1.156     schwarze 1365:        p = NULL;
                   1366:        for (;;) {
1.32      kristaps 1367:                la = *pos;
1.119     schwarze 1368:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1369:
1.228     schwarze 1370:                if ((ac == ARGS_WORD || ac == ARGS_ALLOC) && state == -1 &&
1.225     schwarze 1371:                    (mdoc_macro(tok)->flags & MDOC_IGNDELIM) == 0 &&
1.181     schwarze 1372:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1373:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.228     schwarze 1374:                        if (ac == ARGS_ALLOC)
                   1375:                                free(p);
1.181     schwarze 1376:                        continue;
                   1377:                }
                   1378:
                   1379:                if (state == -1 && tok != MDOC_In &&
                   1380:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1381:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1382:                        state = 0;
                   1383:                }
                   1384:
1.156     schwarze 1385:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1386:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.227     schwarze 1387:                                mandoc_msg(MANDOCERR_PF_SKIP,
                   1388:                                    line, ppos, "Pf %s",
1.156     schwarze 1389:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1390:                        break;
1.156     schwarze 1391:                }
1.1       kristaps 1392:
1.181     schwarze 1393:                if (state == maxargs) {
1.149     schwarze 1394:                        rew_elem(mdoc, tok);
1.181     schwarze 1395:                        state = -2;
1.46      kristaps 1396:                }
                   1397:
1.224     schwarze 1398:                ntok = (tok == MDOC_Pf && state == 0) ?
1.191     schwarze 1399:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1400:
1.191     schwarze 1401:                if (ntok != TOKEN_NONE) {
1.181     schwarze 1402:                        if (state >= 0) {
1.149     schwarze 1403:                                rew_elem(mdoc, tok);
1.181     schwarze 1404:                                state = -2;
                   1405:                        }
1.225     schwarze 1406:                        (*mdoc_macro(ntok)->fp)(mdoc, ntok,
                   1407:                            line, la, pos, buf);
1.228     schwarze 1408:                        if (ac == ARGS_ALLOC)
                   1409:                                free(p);
1.1       kristaps 1410:                        break;
                   1411:                }
                   1412:
1.225     schwarze 1413:                if (mdoc_macro(tok)->flags & MDOC_IGNDELIM ||
1.181     schwarze 1414:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1415:                        if (state == -1) {
                   1416:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1417:                                state = 1;
                   1418:                        } else if (state >= 0)
                   1419:                                state++;
                   1420:                } else if (state >= 0) {
1.149     schwarze 1421:                        rew_elem(mdoc, tok);
1.181     schwarze 1422:                        state = -2;
1.1       kristaps 1423:                }
1.42      kristaps 1424:
1.150     schwarze 1425:                dword(mdoc, line, la, p, DELIM_MAX,
1.225     schwarze 1426:                    mdoc_macro(tok)->flags & MDOC_JOIN);
1.228     schwarze 1427:                if (ac == ARGS_ALLOC)
                   1428:                        free(p);
                   1429:                p = mdoc->last->string;
1.1       kristaps 1430:        }
                   1431:
1.181     schwarze 1432:        if (state == -1) {
1.227     schwarze 1433:                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                   1434:                    line, ppos, "%s", roff_name[tok]);
1.181     schwarze 1435:                return;
1.156     schwarze 1436:        }
1.181     schwarze 1437:
                   1438:        if (state == 0 && tok == MDOC_Pf)
                   1439:                append_delims(mdoc, line, pos, buf);
                   1440:        if (state >= 0)
1.149     schwarze 1441:                rew_elem(mdoc, tok);
1.150     schwarze 1442:        if (nl)
                   1443:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1444: }
                   1445:
1.151     schwarze 1446: static void
1.1       kristaps 1447: in_line_eoln(MACRO_PROT_ARGS)
                   1448: {
1.185     schwarze 1449:        struct roff_node        *n;
1.170     schwarze 1450:        struct mdoc_arg         *arg;
1.1       kristaps 1451:
1.170     schwarze 1452:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1453:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1454:                n = mdoc->last;
1.189     schwarze 1455:                if (mdoc->next == ROFF_NEXT_SIBLING)
1.170     schwarze 1456:                        n = n->parent;
                   1457:                if (n->tok == MDOC_Nm)
1.198     schwarze 1458:                        rew_last(mdoc, n->parent);
1.178     schwarze 1459:        }
                   1460:
1.179     schwarze 1461:        if (buf[*pos] == '\0' &&
1.219     schwarze 1462:            (tok == MDOC_Fd || *roff_name[tok] == '%')) {
1.227     schwarze 1463:                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                   1464:                    line, ppos, "%s", roff_name[tok]);
1.178     schwarze 1465:                return;
1.170     schwarze 1466:        }
1.90      schwarze 1467:
1.152     schwarze 1468:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1469:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1470:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1471:                return;
                   1472:        rew_elem(mdoc, tok);
                   1473: }
                   1474:
                   1475: /*
                   1476:  * The simplest argument parser available: Parse the remaining
                   1477:  * words until the end of the phrase or line and return 0
                   1478:  * or until the next macro, call that macro, and return 1.
                   1479:  */
                   1480: static int
1.219     schwarze 1481: parse_rest(struct roff_man *mdoc, enum roff_tok tok,
                   1482:     int line, int *pos, char *buf)
1.154     schwarze 1483: {
1.228     schwarze 1484:        char            *p;
                   1485:        int              done, la;
                   1486:        enum margserr    ac;
1.1       kristaps 1487:
                   1488:        for (;;) {
                   1489:                la = *pos;
1.228     schwarze 1490:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
                   1491:                if (ac == ARGS_EOLN)
1.202     schwarze 1492:                        return 0;
1.228     schwarze 1493:                done = macro_or_word(mdoc, tok, line, la, pos, buf, p, 1);
                   1494:                if (ac == ARGS_ALLOC)
                   1495:                        free(p);
                   1496:                if (done)
1.202     schwarze 1497:                        return 1;
1.1       kristaps 1498:        }
                   1499: }
                   1500:
1.151     schwarze 1501: static void
1.41      kristaps 1502: ctx_synopsis(MACRO_PROT_ARGS)
                   1503: {
1.60      kristaps 1504:
1.151     schwarze 1505:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1506:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1507:        else if (tok == MDOC_Nm)
                   1508:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1509:        else {
                   1510:                assert(tok == MDOC_Vt);
                   1511:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1512:        }
1.1       kristaps 1513: }
                   1514:
1.24      kristaps 1515: /*
                   1516:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1517:  * They're unusual because they're basically free-form text until a
                   1518:  * macro is encountered.
                   1519:  */
1.151     schwarze 1520: static void
1.75      kristaps 1521: phrase_ta(MACRO_PROT_ARGS)
                   1522: {
1.185     schwarze 1523:        struct roff_node *body, *n;
1.75      kristaps 1524:
1.121     schwarze 1525:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1526:
1.167     schwarze 1527:        body = NULL;
                   1528:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze 1529:                if (n->flags & NODE_ENDED)
1.167     schwarze 1530:                        continue;
1.184     schwarze 1531:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1532:                        body = n;
1.208     schwarze 1533:                if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
1.167     schwarze 1534:                        break;
                   1535:        }
                   1536:
1.151     schwarze 1537:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.227     schwarze 1538:                mandoc_msg(MANDOCERR_TA_STRAY, line, ppos, "Ta");
1.151     schwarze 1539:                return;
1.121     schwarze 1540:        }
1.75      kristaps 1541:
1.121     schwarze 1542:        /* Advance to the next column. */
1.150     schwarze 1543:
1.167     schwarze 1544:        rew_last(mdoc, body);
1.190     schwarze 1545:        roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191     schwarze 1546:        parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75      kristaps 1547: }

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