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Annotation of mandoc/mdoc_macro.c, Revision 1.226

1.226   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.225 2018/08/17 20:33:37 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 *);
1.153     schwarze   52: static int             macro_or_word(MACRO_PROT_ARGS, 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)
1.137     schwarze  231:                        mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
1.219     schwarze  232:                            n->line, n->pos, roff_name[n->tok]);
1.1       kristaps  233:
1.32      kristaps  234:        /* Rewind to the first. */
                    235:
1.149     schwarze  236:        rew_last(mdoc, mdoc->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;
1.223     schwarze  258:                        mandoc_msg(MANDOCERR_MACRO_CALL,
                    259:                            mdoc->parse, line, ppos, p);
1.155     schwarze  260:                }
1.153     schwarze  261:        }
1.202     schwarze  262:        return TOKEN_NONE;
1.1       kristaps  263: }
                    264:
1.166     schwarze  265: /*
                    266:  * Rewind up to and including a specific node.
                    267:  */
1.149     schwarze  268: static void
1.189     schwarze  269: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1       kristaps  270: {
                    271:
1.210     schwarze  272:        if (to->flags & NODE_VALID)
1.186     schwarze  273:                return;
                    274:
1.1       kristaps  275:        while (mdoc->last != to) {
1.206     schwarze  276:                mdoc_state(mdoc, mdoc->last);
1.210     schwarze  277:                mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.206     schwarze  278:                mdoc->last = mdoc->last->parent;
1.1       kristaps  279:        }
1.206     schwarze  280:        mdoc_state(mdoc, mdoc->last);
1.210     schwarze  281:        mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.200     schwarze  282:        mdoc->next = ROFF_NEXT_SIBLING;
1.1       kristaps  283: }
                    284:
1.32      kristaps  285: /*
1.166     schwarze  286:  * Rewind up to a specific block, including all blocks that broke it.
                    287:  */
                    288: static void
1.189     schwarze  289: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.166     schwarze  290: {
                    291:
1.183     schwarze  292:        for (;;) {
                    293:                rew_last(mdoc, n);
                    294:
1.194     schwarze  295:                if (mdoc->last == n) {
                    296:                        switch (n->type) {
                    297:                        case ROFFT_HEAD:
                    298:                                roff_body_alloc(mdoc, n->line, n->pos,
                    299:                                    n->tok);
1.207     schwarze  300:                                break;
1.194     schwarze  301:                        case ROFFT_BLOCK:
                    302:                                break;
                    303:                        default:
                    304:                                return;
                    305:                        }
1.210     schwarze  306:                        if ( ! (n->flags & NODE_BROKEN))
1.194     schwarze  307:                                return;
                    308:                } else
                    309:                        n = mdoc->last;
1.166     schwarze  310:
1.183     schwarze  311:                for (;;) {
                    312:                        if ((n = n->parent) == NULL)
                    313:                                return;
                    314:
1.184     schwarze  315:                        if (n->type == ROFFT_BLOCK ||
                    316:                            n->type == ROFFT_HEAD) {
1.210     schwarze  317:                                if (n->flags & NODE_ENDED)
1.183     schwarze  318:                                        break;
                    319:                                else
                    320:                                        return;
                    321:                        }
                    322:                }
1.166     schwarze  323:        }
                    324: }
                    325:
                    326: /*
1.84      schwarze  327:  * For a block closing macro, return the corresponding opening one.
                    328:  * Otherwise, return the macro itself.
1.32      kristaps  329:  */
1.219     schwarze  330: static enum roff_tok
                    331: rew_alt(enum roff_tok tok)
1.1       kristaps  332: {
                    333:        switch (tok) {
1.131     schwarze  334:        case MDOC_Ac:
1.202     schwarze  335:                return MDOC_Ao;
1.131     schwarze  336:        case MDOC_Bc:
1.202     schwarze  337:                return MDOC_Bo;
1.131     schwarze  338:        case MDOC_Brc:
1.202     schwarze  339:                return MDOC_Bro;
1.131     schwarze  340:        case MDOC_Dc:
1.202     schwarze  341:                return MDOC_Do;
1.131     schwarze  342:        case MDOC_Ec:
1.202     schwarze  343:                return MDOC_Eo;
1.131     schwarze  344:        case MDOC_Ed:
1.202     schwarze  345:                return MDOC_Bd;
1.131     schwarze  346:        case MDOC_Ef:
1.202     schwarze  347:                return MDOC_Bf;
1.131     schwarze  348:        case MDOC_Ek:
1.202     schwarze  349:                return MDOC_Bk;
1.131     schwarze  350:        case MDOC_El:
1.202     schwarze  351:                return MDOC_Bl;
1.131     schwarze  352:        case MDOC_Fc:
1.202     schwarze  353:                return MDOC_Fo;
1.131     schwarze  354:        case MDOC_Oc:
1.202     schwarze  355:                return MDOC_Oo;
1.131     schwarze  356:        case MDOC_Pc:
1.202     schwarze  357:                return MDOC_Po;
1.131     schwarze  358:        case MDOC_Qc:
1.202     schwarze  359:                return MDOC_Qo;
1.131     schwarze  360:        case MDOC_Re:
1.202     schwarze  361:                return MDOC_Rs;
1.131     schwarze  362:        case MDOC_Sc:
1.202     schwarze  363:                return MDOC_So;
1.131     schwarze  364:        case MDOC_Xc:
1.202     schwarze  365:                return MDOC_Xo;
1.1       kristaps  366:        default:
1.202     schwarze  367:                return tok;
1.1       kristaps  368:        }
                    369: }
                    370:
1.149     schwarze  371: static void
1.219     schwarze  372: rew_elem(struct roff_man *mdoc, enum roff_tok tok)
1.1       kristaps  373: {
1.185     schwarze  374:        struct roff_node *n;
1.1       kristaps  375:
                    376:        n = mdoc->last;
1.184     schwarze  377:        if (n->type != ROFFT_ELEM)
1.1       kristaps  378:                n = n->parent;
1.184     schwarze  379:        assert(n->type == ROFFT_ELEM);
1.1       kristaps  380:        assert(tok == n->tok);
1.149     schwarze  381:        rew_last(mdoc, n);
1.1       kristaps  382: }
                    383:
1.213     schwarze  384: static void
                    385: break_intermediate(struct roff_node *n, struct roff_node *breaker)
                    386: {
1.217     schwarze  387:        if (n != breaker &&
                    388:            n->type != ROFFT_BLOCK && n->type != ROFFT_HEAD &&
                    389:            (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
                    390:                n = n->parent;
1.213     schwarze  391:        while (n != breaker) {
                    392:                if ( ! (n->flags & NODE_VALID))
                    393:                        n->flags |= NODE_BROKEN;
                    394:                n = n->parent;
                    395:        }
                    396: }
                    397:
1.83      schwarze  398: /*
1.187     schwarze  399:  * If there is an open sub-block of the target requiring
                    400:  * explicit close-out, postpone closing out the target until
                    401:  * the rew_pending() call closing out the sub-block.
                    402:  */
                    403: static int
1.219     schwarze  404: find_pending(struct roff_man *mdoc, enum roff_tok tok, int line, int ppos,
1.187     schwarze  405:        struct roff_node *target)
                    406: {
                    407:        struct roff_node        *n;
                    408:        int                      irc;
                    409:
1.215     schwarze  410:        if (target->flags & NODE_VALID)
                    411:                return 0;
                    412:
1.187     schwarze  413:        irc = 0;
                    414:        for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
1.213     schwarze  415:                if (n->flags & NODE_ENDED)
1.187     schwarze  416:                        continue;
                    417:                if (n->type == ROFFT_BLOCK &&
1.225     schwarze  418:                    mdoc_macro(n->tok)->flags & MDOC_EXPLICIT) {
1.187     schwarze  419:                        irc = 1;
1.217     schwarze  420:                        break_intermediate(mdoc->last, target);
1.187     schwarze  421:                        if (target->type == ROFFT_HEAD)
1.212     schwarze  422:                                target->flags |= NODE_ENDED;
1.210     schwarze  423:                        else if ( ! (target->flags & NODE_ENDED)) {
1.187     schwarze  424:                                mandoc_vmsg(MANDOCERR_BLK_NEST,
                    425:                                    mdoc->parse, line, ppos,
1.219     schwarze  426:                                    "%s breaks %s", roff_name[tok],
                    427:                                    roff_name[n->tok]);
1.187     schwarze  428:                                mdoc_endbody_alloc(mdoc, line, ppos,
1.216     schwarze  429:                                    tok, target);
1.187     schwarze  430:                        }
                    431:                }
                    432:        }
1.202     schwarze  433:        return irc;
1.187     schwarze  434: }
                    435:
                    436: /*
1.105     kristaps  437:  * Allocate a word and check whether it's punctuation or not.
                    438:  * Punctuation consists of those tokens found in mdoc_isdelim().
                    439:  */
1.150     schwarze  440: static void
1.189     schwarze  441: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123     schwarze  442:                enum mdelim d, int may_append)
1.105     kristaps  443: {
1.131     schwarze  444:
1.150     schwarze  445:        if (d == DELIM_MAX)
1.105     kristaps  446:                d = mdoc_isdelim(p);
                    447:
1.123     schwarze  448:        if (may_append &&
1.150     schwarze  449:            ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184     schwarze  450:            d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150     schwarze  451:            mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.192     schwarze  452:                roff_word_append(mdoc, p);
1.150     schwarze  453:                return;
1.123     schwarze  454:        }
                    455:
1.192     schwarze  456:        roff_word_alloc(mdoc, line, col, p);
1.105     kristaps  457:
1.108     schwarze  458:        /*
1.144     schwarze  459:         * If the word consists of a bare delimiter,
                    460:         * flag the new node accordingly,
                    461:         * unless doing so was vetoed by the invoking macro.
                    462:         * Always clear the veto, it is only valid for one word.
1.108     schwarze  463:         */
                    464:
1.144     schwarze  465:        if (d == DELIM_OPEN)
1.210     schwarze  466:                mdoc->last->flags |= NODE_DELIMO;
1.144     schwarze  467:        else if (d == DELIM_CLOSE &&
                    468:            ! (mdoc->flags & MDOC_NODELIMC) &&
1.131     schwarze  469:            mdoc->last->parent->tok != MDOC_Fd)
1.210     schwarze  470:                mdoc->last->flags |= NODE_DELIMC;
1.144     schwarze  471:        mdoc->flags &= ~MDOC_NODELIMC;
1.105     kristaps  472: }
1.1       kristaps  473:
1.150     schwarze  474: static void
1.189     schwarze  475: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1       kristaps  476: {
1.153     schwarze  477:        char            *p;
1.66      kristaps  478:        int              la;
1.1       kristaps  479:
1.150     schwarze  480:        if (buf[*pos] == '\0')
                    481:                return;
1.1       kristaps  482:
                    483:        for (;;) {
1.66      kristaps  484:                la = *pos;
1.191     schwarze  485:                if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
                    486:                    ARGS_EOLN)
1.1       kristaps  487:                        break;
1.123     schwarze  488:                dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66      kristaps  489:
                    490:                /*
                    491:                 * If we encounter end-of-sentence symbols, then trigger
                    492:                 * the double-space.
                    493:                 *
1.109     kristaps  494:                 * XXX: it's easy to allow this to propagate outward to
1.66      kristaps  495:                 * the last symbol, such that `. )' will cause the
                    496:                 * correct double-spacing.  However, (1) groff isn't
                    497:                 * smart enough to do this and (2) it would require
                    498:                 * knowing which symbols break this behaviour, for
1.109     kristaps  499:                 * example, `.  ;' shouldn't propagate the double-space.
1.66      kristaps  500:                 */
1.150     schwarze  501:
1.127     schwarze  502:                if (mandoc_eos(p, strlen(p)))
1.210     schwarze  503:                        mdoc->last->flags |= NODE_EOS;
1.1       kristaps  504:        }
                    505: }
                    506:
                    507: /*
1.153     schwarze  508:  * Parse one word.
                    509:  * If it is a macro, call it and return 1.
                    510:  * Otherwise, allocate it and return 0.
                    511:  */
                    512: static int
                    513: macro_or_word(MACRO_PROT_ARGS, int parsed)
                    514: {
                    515:        char            *p;
1.185     schwarze  516:        int              ntok;
1.153     schwarze  517:
                    518:        p = buf + ppos;
1.191     schwarze  519:        ntok = TOKEN_NONE;
1.157     schwarze  520:        if (*p == '"')
1.153     schwarze  521:                p++;
1.157     schwarze  522:        else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155     schwarze  523:                ntok = lookup(mdoc, tok, line, ppos, p);
1.153     schwarze  524:
1.191     schwarze  525:        if (ntok == TOKEN_NONE) {
                    526:                dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.225     schwarze  527:                    mdoc_macro(tok)->flags & MDOC_JOIN);
1.202     schwarze  528:                return 0;
1.153     schwarze  529:        } else {
1.219     schwarze  530:                if (tok != TOKEN_NONE &&
1.225     schwarze  531:                    mdoc_macro(tok)->fp == in_line_eoln)
1.153     schwarze  532:                        rew_elem(mdoc, tok);
1.225     schwarze  533:                (*mdoc_macro(ntok)->fp)(mdoc, ntok, line, ppos, pos, buf);
1.191     schwarze  534:                if (tok == TOKEN_NONE)
1.153     schwarze  535:                        append_delims(mdoc, line, pos, buf);
1.202     schwarze  536:                return 1;
1.153     schwarze  537:        }
                    538: }
                    539:
                    540: /*
1.131     schwarze  541:  * Close out block partial/full explicit.
1.1       kristaps  542:  */
1.151     schwarze  543: static void
1.1       kristaps  544: blk_exp_close(MACRO_PROT_ARGS)
                    545: {
1.185     schwarze  546:        struct roff_node *body;         /* Our own body. */
                    547:        struct roff_node *endbody;      /* Our own end marker. */
                    548:        struct roff_node *itblk;        /* An It block starting later. */
                    549:        struct roff_node *later;        /* A sub-block starting later. */
                    550:        struct roff_node *n;            /* Search back to our block. */
1.188     schwarze  551:        struct roff_node *target;       /* For find_pending(). */
1.83      schwarze  552:
1.188     schwarze  553:        int              j, lastarg, maxargs, nl, pending;
1.55      kristaps  554:        enum margserr    ac;
1.219     schwarze  555:        enum roff_tok    atok, ntok;
1.1       kristaps  556:        char            *p;
                    557:
1.119     schwarze  558:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  559:
1.1       kristaps  560:        switch (tok) {
1.131     schwarze  561:        case MDOC_Ec:
1.1       kristaps  562:                maxargs = 1;
                    563:                break;
1.131     schwarze  564:        case MDOC_Ek:
1.125     schwarze  565:                mdoc->flags &= ~MDOC_KEEP;
1.151     schwarze  566:                /* FALLTHROUGH */
1.1       kristaps  567:        default:
                    568:                maxargs = 0;
                    569:                break;
                    570:        }
                    571:
1.209     schwarze  572:        /* Search backwards for the beginning of our own body. */
                    573:
                    574:        atok = rew_alt(tok);
                    575:        body = NULL;
                    576:        for (n = mdoc->last; n; n = n->parent) {
1.210     schwarze  577:                if (n->flags & NODE_ENDED || n->tok != atok ||
1.209     schwarze  578:                    n->type != ROFFT_BODY || n->end != ENDBODY_NOT)
                    579:                        continue;
                    580:                body = n;
                    581:                break;
                    582:        }
                    583:
1.83      schwarze  584:        /*
                    585:         * Search backwards for beginnings of blocks,
                    586:         * both of our own and of pending sub-blocks.
                    587:         */
1.151     schwarze  588:
1.209     schwarze  589:        endbody = itblk = later = NULL;
1.119     schwarze  590:        for (n = mdoc->last; n; n = n->parent) {
1.213     schwarze  591:                if (n->flags & NODE_ENDED)
1.83      schwarze  592:                        continue;
                    593:
1.209     schwarze  594:                /*
1.211     schwarze  595:                 * Mismatching end macros can never break anything
1.209     schwarze  596:                 * and we only care about the breaking of BLOCKs.
                    597:                 */
1.83      schwarze  598:
1.211     schwarze  599:                if (body == NULL || n->type != ROFFT_BLOCK)
1.83      schwarze  600:                        continue;
1.160     schwarze  601:
1.211     schwarze  602:                /*
                    603:                 * SYNOPSIS name blocks can not be broken themselves,
                    604:                 * but they do get broken together with a broken child.
                    605:                 */
                    606:
                    607:                if (n->tok == MDOC_Nm) {
                    608:                        if (later != NULL)
                    609:                                n->flags |= NODE_BROKEN | NODE_ENDED;
                    610:                        continue;
                    611:                }
                    612:
1.160     schwarze  613:                if (n->tok == MDOC_It) {
1.171     schwarze  614:                        itblk = n;
1.160     schwarze  615:                        continue;
                    616:                }
                    617:
1.83      schwarze  618:                if (atok == n->tok) {
                    619:
                    620:                        /*
                    621:                         * Found the start of our own block.
                    622:                         * When there is no pending sub block,
                    623:                         * just proceed to closing out.
                    624:                         */
1.151     schwarze  625:
1.160     schwarze  626:                        if (later == NULL ||
1.171     schwarze  627:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  628:                                break;
                    629:
1.131     schwarze  630:                        /*
1.167     schwarze  631:                         * When there is a pending sub block, postpone
                    632:                         * closing out the current block until the
                    633:                         * rew_pending() closing out the sub-block.
1.83      schwarze  634:                         * Mark the place where the formatting - but not
                    635:                         * the scope - of the current block ends.
                    636:                         */
1.151     schwarze  637:
1.183     schwarze  638:                        mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
                    639:                            line, ppos, "%s breaks %s",
1.219     schwarze  640:                            roff_name[atok], roff_name[later->tok]);
1.183     schwarze  641:
1.166     schwarze  642:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.216     schwarze  643:                            atok, body);
1.151     schwarze  644:
1.183     schwarze  645:                        if (tok == MDOC_El)
1.210     schwarze  646:                                itblk->flags |= NODE_ENDED | NODE_BROKEN;
1.183     schwarze  647:
1.151     schwarze  648:                        /*
                    649:                         * If a block closing macro taking arguments
                    650:                         * breaks another block, put the arguments
1.166     schwarze  651:                         * into the end marker.
1.151     schwarze  652:                         */
                    653:
1.166     schwarze  654:                        if (maxargs)
1.189     schwarze  655:                                mdoc->next = ROFF_NEXT_CHILD;
1.83      schwarze  656:                        break;
1.182     schwarze  657:                }
                    658:
1.214     schwarze  659:                /*
                    660:                 * Explicit blocks close out description lines, but
                    661:                 * even those can get broken together with a child.
                    662:                 */
1.182     schwarze  663:
                    664:                if (n->tok == MDOC_Nd) {
1.214     schwarze  665:                        if (later != NULL)
                    666:                                n->flags |= NODE_BROKEN | NODE_ENDED;
                    667:                        else
                    668:                                rew_last(mdoc, n);
1.182     schwarze  669:                        continue;
1.83      schwarze  670:                }
                    671:
1.183     schwarze  672:                /* Breaking an open sub block. */
1.151     schwarze  673:
1.213     schwarze  674:                break_intermediate(mdoc->last, body);
1.210     schwarze  675:                n->flags |= NODE_BROKEN;
1.183     schwarze  676:                if (later == NULL)
1.83      schwarze  677:                        later = n;
                    678:        }
1.166     schwarze  679:
                    680:        if (body == NULL) {
                    681:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
1.219     schwarze  682:                    line, ppos, roff_name[tok]);
1.166     schwarze  683:                if (maxargs && endbody == NULL) {
                    684:                        /*
                    685:                         * Stray .Ec without previous .Eo:
                    686:                         * Break the output line, keep the arguments.
                    687:                         */
1.221     schwarze  688:                        roff_elem_alloc(mdoc, line, ppos, ROFF_br);
                    689:                        rew_elem(mdoc, ROFF_br);
1.166     schwarze  690:                }
                    691:        } else if (endbody == NULL) {
                    692:                rew_last(mdoc, body);
                    693:                if (maxargs)
                    694:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    695:        }
1.83      schwarze  696:
1.225     schwarze  697:        if ((mdoc_macro(tok)->flags & MDOC_PARSED) == 0) {
1.150     schwarze  698:                if (buf[*pos] != '\0')
1.136     schwarze  699:                        mandoc_vmsg(MANDOCERR_ARG_SKIP,
                    700:                            mdoc->parse, line, ppos,
1.219     schwarze  701:                            "%s %s", roff_name[tok],
1.136     schwarze  702:                            buf + *pos);
1.171     schwarze  703:                if (endbody == NULL && n != NULL)
1.167     schwarze  704:                        rew_pending(mdoc, n);
1.151     schwarze  705:                return;
1.1       kristaps  706:        }
                    707:
1.166     schwarze  708:        if (endbody != NULL)
                    709:                n = endbody;
1.197     schwarze  710:
                    711:        ntok = TOKEN_NONE;
1.148     schwarze  712:        for (j = 0; ; j++) {
1.1       kristaps  713:                lastarg = *pos;
                    714:
1.186     schwarze  715:                if (j == maxargs && n != NULL)
                    716:                        rew_last(mdoc, n);
1.1       kristaps  717:
1.119     schwarze  718:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  719:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  720:                        break;
                    721:
1.224     schwarze  722:                ntok = lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  723:
1.191     schwarze  724:                if (ntok == TOKEN_NONE) {
1.150     schwarze  725:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
1.225     schwarze  726:                            mdoc_macro(tok)->flags & MDOC_JOIN);
1.54      kristaps  727:                        continue;
                    728:                }
1.1       kristaps  729:
1.186     schwarze  730:                if (n != NULL)
                    731:                        rew_last(mdoc, n);
1.122     schwarze  732:                mdoc->flags &= ~MDOC_NEWLINE;
1.225     schwarze  733:                (*mdoc_macro(ntok)->fp)(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  734:                break;
1.1       kristaps  735:        }
                    736:
1.188     schwarze  737:        if (n != NULL) {
1.212     schwarze  738:                pending = 0;
1.210     schwarze  739:                if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
1.188     schwarze  740:                        target = n;
                    741:                        do
                    742:                                target = target->parent;
1.210     schwarze  743:                        while ( ! (target->flags & NODE_ENDED));
1.215     schwarze  744:                        pending = find_pending(mdoc, ntok, line, ppos, target);
1.212     schwarze  745:                }
1.188     schwarze  746:                if ( ! pending)
                    747:                        rew_pending(mdoc, n);
                    748:        }
1.150     schwarze  749:        if (nl)
                    750:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  751: }
                    752:
1.151     schwarze  753: static void
1.1       kristaps  754: in_line(MACRO_PROT_ARGS)
                    755: {
1.144     schwarze  756:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.219     schwarze  757:        enum roff_tok    ntok;
1.55      kristaps  758:        enum margserr    ac;
1.67      schwarze  759:        enum mdelim      d;
1.53      kristaps  760:        struct mdoc_arg *arg;
                    761:        char            *p;
1.1       kristaps  762:
1.119     schwarze  763:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  764:
1.4       kristaps  765:        /*
                    766:         * Whether we allow ignored elements (those without content,
                    767:         * usually because of reserved words) to squeak by.
                    768:         */
1.45      kristaps  769:
1.4       kristaps  770:        switch (tok) {
1.131     schwarze  771:        case MDOC_An:
                    772:        case MDOC_Ar:
                    773:        case MDOC_Fl:
                    774:        case MDOC_Mt:
                    775:        case MDOC_Nm:
                    776:        case MDOC_Pa:
1.4       kristaps  777:                nc = 1;
                    778:                break;
                    779:        default:
                    780:                nc = 0;
                    781:                break;
                    782:        }
                    783:
1.152     schwarze  784:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  785:
1.144     schwarze  786:        d = DELIM_NONE;
                    787:        firstarg = 1;
1.142     schwarze  788:        mayopen = 1;
1.70      kristaps  789:        for (cnt = scope = 0;; ) {
1.1       kristaps  790:                la = *pos;
1.119     schwarze  791:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  792:
1.144     schwarze  793:                /*
                    794:                 * At the end of a macro line,
                    795:                 * opening delimiters do not suppress spacing.
                    796:                 */
                    797:
                    798:                if (ac == ARGS_EOLN) {
                    799:                        if (d == DELIM_OPEN)
1.210     schwarze  800:                                mdoc->last->flags &= ~NODE_DELIMO;
1.1       kristaps  801:                        break;
1.144     schwarze  802:                }
                    803:
                    804:                /*
                    805:                 * The rest of the macro line is only punctuation,
                    806:                 * to be handled by append_delims().
                    807:                 * If there were no other arguments,
                    808:                 * do not allow the first one to suppress spacing,
                    809:                 * even if it turns out to be a closing one.
                    810:                 */
                    811:
                    812:                if (ac == ARGS_PUNCT) {
1.176     schwarze  813:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  814:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  815:                        break;
1.144     schwarze  816:                }
1.1       kristaps  817:
1.224     schwarze  818:                ntok = (tok == MDOC_Fn && !cnt) ?
1.191     schwarze  819:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1       kristaps  820:
1.131     schwarze  821:                /*
1.4       kristaps  822:                 * In this case, we've located a submacro and must
                    823:                 * execute it.  Close out scope, if open.  If no
                    824:                 * elements have been generated, either create one (nc)
                    825:                 * or raise a warning.
                    826:                 */
1.1       kristaps  827:
1.191     schwarze  828:                if (ntok != TOKEN_NONE) {
1.149     schwarze  829:                        if (scope)
                    830:                                rew_elem(mdoc, tok);
1.150     schwarze  831:                        if (nc && ! cnt) {
                    832:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  833:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  834:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  835:                                mdoc_argv_free(arg);
1.135     schwarze  836:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    837:                                    mdoc->parse, line, ppos,
1.219     schwarze  838:                                    roff_name[tok]);
1.7       kristaps  839:                        }
1.225     schwarze  840:                        (*mdoc_macro(ntok)->fp)(mdoc, ntok,
                    841:                            line, la, pos, buf);
1.150     schwarze  842:                        if (nl)
                    843:                                append_delims(mdoc, line, pos, buf);
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:
                    887:                /*
1.144     schwarze  888:                 * If the first argument is a closing delimiter,
                    889:                 * do not suppress spacing before it.
                    890:                 */
                    891:
                    892:                if (firstarg && d == DELIM_CLOSE && !nc)
1.210     schwarze  893:                        mdoc->last->flags &= ~NODE_DELIMC;
1.144     schwarze  894:                firstarg = 0;
                    895:
                    896:                /*
1.39      kristaps  897:                 * `Fl' macros have their scope re-opened with each new
                    898:                 * word so that the `-' can be added to each one without
                    899:                 * having to parse out spaces.
                    900:                 */
1.150     schwarze  901:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  902:                        rew_elem(mdoc, tok);
1.70      kristaps  903:                        scope = 0;
1.39      kristaps  904:                }
1.1       kristaps  905:        }
                    906:
1.218     schwarze  907:        if (scope && tok != MDOC_Lk) {
1.149     schwarze  908:                rew_elem(mdoc, tok);
1.218     schwarze  909:                scope = 0;
                    910:        }
1.4       kristaps  911:
                    912:        /*
                    913:         * If no elements have been collected and we're allowed to have
                    914:         * empties (nc), open a scope and close it out.  Otherwise,
                    915:         * raise a warning.
                    916:         */
1.45      kristaps  917:
1.150     schwarze  918:        if ( ! cnt) {
                    919:                if (nc) {
                    920:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    921:                        rew_last(mdoc, mdoc->last);
                    922:                } else {
                    923:                        mdoc_argv_free(arg);
                    924:                        mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.219     schwarze  925:                            line, ppos, roff_name[tok]);
1.150     schwarze  926:                }
1.7       kristaps  927:        }
1.150     schwarze  928:        if (nl)
                    929:                append_delims(mdoc, line, pos, buf);
1.218     schwarze  930:        if (scope)
                    931:                rew_elem(mdoc, tok);
1.1       kristaps  932: }
                    933:
1.151     schwarze  934: static void
1.1       kristaps  935: blk_full(MACRO_PROT_ARGS)
                    936: {
1.153     schwarze  937:        int               la, nl, parsed;
1.1       kristaps  938:        struct mdoc_arg  *arg;
1.185     schwarze  939:        struct roff_node *blk; /* Our own or a broken block. */
                    940:        struct roff_node *head; /* Our own head. */
                    941:        struct roff_node *body; /* Our own body. */
                    942:        struct roff_node *n;
1.59      kristaps  943:        enum margserr     ac, lac;
1.1       kristaps  944:        char             *p;
                    945:
1.119     schwarze  946:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  947:
1.177     schwarze  948:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    949:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.219     schwarze  950:                    line, ppos, roff_name[tok]);
1.177     schwarze  951:                return;
                    952:        }
                    953:
1.225     schwarze  954:        if ((mdoc_macro(tok)->flags & MDOC_EXPLICIT) == 0) {
1.171     schwarze  955:
                    956:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    957:
                    958:                blk = NULL;
                    959:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze  960:                        if (n->flags & NODE_ENDED) {
                    961:                                if ( ! (n->flags & NODE_VALID))
                    962:                                        n->flags |= NODE_BROKEN;
1.183     schwarze  963:                                continue;
                    964:                        }
1.184     schwarze  965:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  966:                                continue;
1.183     schwarze  967:
1.171     schwarze  968:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    969:                                if (blk != NULL) {
                    970:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    971:                                            mdoc->parse, line, ppos,
                    972:                                            "It breaks %s",
1.219     schwarze  973:                                            roff_name[blk->tok]);
1.171     schwarze  974:                                        rew_pending(mdoc, blk);
                    975:                                }
                    976:                                break;
                    977:                        }
                    978:
1.225     schwarze  979:                        if (mdoc_macro(n->tok)->flags & MDOC_EXPLICIT) {
1.171     schwarze  980:                                switch (tok) {
                    981:                                case MDOC_Sh:
                    982:                                case MDOC_Ss:
                    983:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    984:                                            mdoc->parse, line, ppos,
1.219     schwarze  985:                                            "%s breaks %s", roff_name[tok],
                    986:                                            roff_name[n->tok]);
1.171     schwarze  987:                                        rew_pending(mdoc, n);
1.180     schwarze  988:                                        n = mdoc->last;
1.171     schwarze  989:                                        continue;
                    990:                                case MDOC_It:
                    991:                                        /* Delay in case it's astray. */
                    992:                                        blk = n;
                    993:                                        continue;
                    994:                                default:
                    995:                                        break;
                    996:                                }
                    997:                                break;
                    998:                        }
                    999:
                   1000:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze 1001:
1.171     schwarze 1002:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                   1003:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                   1004:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze 1005:                                break;
1.171     schwarze 1006:
                   1007:                        /* Item breaking an explicit block. */
                   1008:
                   1009:                        if (blk != NULL) {
                   1010:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                   1011:                                    mdoc->parse, line, ppos,
1.219     schwarze 1012:                                    "It breaks %s", roff_name[blk->tok]);
1.171     schwarze 1013:                                rew_pending(mdoc, blk);
1.172     schwarze 1014:                                blk = NULL;
1.171     schwarze 1015:                        }
                   1016:
                   1017:                        /* Close out prior implicit scopes. */
                   1018:
1.211     schwarze 1019:                        rew_pending(mdoc, n);
1.171     schwarze 1020:                }
                   1021:
                   1022:                /* Skip items outside lists. */
                   1023:
                   1024:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138     schwarze 1025:                        mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
                   1026:                            line, ppos, "It %s", buf + *pos);
1.221     schwarze 1027:                        roff_elem_alloc(mdoc, line, ppos, ROFF_br);
                   1028:                        rew_elem(mdoc, ROFF_br);
1.151     schwarze 1029:                        return;
1.138     schwarze 1030:                }
1.1       kristaps 1031:        }
                   1032:
1.45      kristaps 1033:        /*
1.109     kristaps 1034:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps 1035:         * macro openings.  Implicit ones first close out prior scope
                   1036:         * (seen above).  Delay opening the head until necessary to
                   1037:         * allow leading punctuation to print.  Special consideration
                   1038:         * for `It -column', which has phrase-part syntax instead of
                   1039:         * regular child nodes.
                   1040:         */
                   1041:
1.152     schwarze 1042:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze 1043:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps 1044:        head = body = NULL;
1.115     schwarze 1045:
                   1046:        /*
                   1047:         * Exception: Heads of `It' macros in `-diag' lists are not
                   1048:         * parsed, even though `It' macros in general are parsed.
                   1049:         */
1.151     schwarze 1050:
1.153     schwarze 1051:        parsed = tok != MDOC_It ||
                   1052:            mdoc->last->parent->tok != MDOC_Bl ||
                   1053:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps 1054:
1.45      kristaps 1055:        /*
                   1056:         * The `Nd' macro has all arguments in its body: it's a hybrid
                   1057:         * of block partial-explicit and full-implicit.  Stupid.
                   1058:         */
1.19      kristaps 1059:
1.150     schwarze 1060:        if (tok == MDOC_Nd) {
1.190     schwarze 1061:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze 1062:                rew_last(mdoc, head);
1.190     schwarze 1063:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze 1064:        }
                   1065:
1.150     schwarze 1066:        if (tok == MDOC_Bk)
1.123     schwarze 1067:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps 1068:
1.205     schwarze 1069:        ac = ARGS_EOLN;
1.150     schwarze 1070:        for (;;) {
1.205     schwarze 1071:
                   1072:                /*
                   1073:                 * If we are right after a tab character,
                   1074:                 * do not parse the first word for macros.
                   1075:                 */
                   1076:
                   1077:                if (mdoc->flags & MDOC_PHRASEQN) {
                   1078:                        mdoc->flags &= ~MDOC_PHRASEQN;
                   1079:                        mdoc->flags |= MDOC_PHRASEQF;
                   1080:                }
                   1081:
1.45      kristaps 1082:                la = *pos;
1.150     schwarze 1083:                lac = ac;
1.119     schwarze 1084:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1085:                if (ac == ARGS_EOLN) {
1.205     schwarze 1086:                        if (lac != ARGS_PHRASE ||
                   1087:                            ! (mdoc->flags & MDOC_PHRASEQF))
1.75      kristaps 1088:                                break;
1.205     schwarze 1089:
1.75      kristaps 1090:                        /*
1.205     schwarze 1091:                         * This line ends in a tab; start the next
                   1092:                         * column now, with a leading blank.
1.75      kristaps 1093:                         */
1.205     schwarze 1094:
1.167     schwarze 1095:                        if (body != NULL)
                   1096:                                rew_last(mdoc, body);
1.190     schwarze 1097:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.205     schwarze 1098:                        roff_word_alloc(mdoc, line, ppos, "\\&");
1.1       kristaps 1099:                        break;
1.75      kristaps 1100:                }
1.205     schwarze 1101:
1.174     schwarze 1102:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
                   1103:                        mandoc_vmsg(MANDOCERR_ARG_EXCESS,
                   1104:                            mdoc->parse, line, la, "%s ... %s",
1.219     schwarze 1105:                            roff_name[tok], buf + la);
1.174     schwarze 1106:                        break;
                   1107:                }
1.173     schwarze 1108:                if (tok == MDOC_Rs) {
                   1109:                        mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
                   1110:                            line, la, "Rs %s", buf + la);
                   1111:                        break;
                   1112:                }
                   1113:                if (ac == ARGS_PUNCT)
                   1114:                        break;
1.45      kristaps 1115:
1.131     schwarze 1116:                /*
1.73      kristaps 1117:                 * Emit leading punctuation (i.e., punctuation before
1.184     schwarze 1118:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1119:                 */
1.45      kristaps 1120:
1.150     schwarze 1121:                if (head == NULL &&
                   1122:                    ac != ARGS_PHRASE &&
                   1123:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1124:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1125:                        continue;
                   1126:                }
                   1127:
1.74      kristaps 1128:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1129:
1.150     schwarze 1130:                if (head == NULL)
1.190     schwarze 1131:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1132:
1.205     schwarze 1133:                if (ac == ARGS_PHRASE) {
1.151     schwarze 1134:
1.73      kristaps 1135:                        /*
1.74      kristaps 1136:                         * If we haven't opened a body yet, rewind the
                   1137:                         * head; if we have, rewind that instead.
                   1138:                         */
                   1139:
1.167     schwarze 1140:                        rew_last(mdoc, body == NULL ? head : body);
1.190     schwarze 1141:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1142:
1.205     schwarze 1143:                        /* Process to the tab or to the end of the line. */
1.74      kristaps 1144:
1.205     schwarze 1145:                        mdoc->flags |= MDOC_PHRASE;
1.191     schwarze 1146:                        parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.205     schwarze 1147:                        mdoc->flags &= ~MDOC_PHRASE;
1.204     schwarze 1148:
                   1149:                        /* There may have been `Ta' macros. */
                   1150:
                   1151:                        while (body->next != NULL)
                   1152:                                body = body->next;
1.1       kristaps 1153:                        continue;
                   1154:                }
                   1155:
1.153     schwarze 1156:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1157:                        break;
1.45      kristaps 1158:        }
1.1       kristaps 1159:
1.210     schwarze 1160:        if (blk->flags & NODE_VALID)
1.165     schwarze 1161:                return;
1.150     schwarze 1162:        if (head == NULL)
1.190     schwarze 1163:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1164:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1165:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1166:        if (body != NULL)
1.77      kristaps 1167:                goto out;
1.187     schwarze 1168:        if (find_pending(mdoc, tok, line, ppos, head))
1.183     schwarze 1169:                return;
1.47      kristaps 1170:
1.45      kristaps 1171:        /* Close out scopes to remain in a consistent state. */
                   1172:
1.167     schwarze 1173:        rew_last(mdoc, head);
1.190     schwarze 1174:        body = roff_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1175: out:
1.150     schwarze 1176:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1177:                rew_last(mdoc, body);
                   1178:                rew_last(mdoc, blk);
1.150     schwarze 1179:                mdoc->flags &= ~MDOC_FREECOL;
                   1180:        }
1.1       kristaps 1181: }
                   1182:
1.151     schwarze 1183: static void
1.1       kristaps 1184: blk_part_imp(MACRO_PROT_ARGS)
                   1185: {
1.63      kristaps 1186:        int               la, nl;
1.55      kristaps 1187:        enum margserr     ac;
1.1       kristaps 1188:        char             *p;
1.185     schwarze 1189:        struct roff_node *blk; /* saved block context */
                   1190:        struct roff_node *body; /* saved body context */
                   1191:        struct roff_node *n;
1.1       kristaps 1192:
1.119     schwarze 1193:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1194:
1.43      kristaps 1195:        /*
                   1196:         * A macro that spans to the end of the line.  This is generally
                   1197:         * (but not necessarily) called as the first macro.  The block
                   1198:         * has a head as the immediate child, which is always empty,
                   1199:         * followed by zero or more opening punctuation nodes, then the
                   1200:         * body (which may be empty, depending on the macro), then zero
                   1201:         * or more closing punctuation nodes.
                   1202:         */
1.32      kristaps 1203:
1.150     schwarze 1204:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190     schwarze 1205:        rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1206:
1.43      kristaps 1207:        /*
                   1208:         * Open the body scope "on-demand", that is, after we've
                   1209:         * processed all our the leading delimiters (open parenthesis,
                   1210:         * etc.).
                   1211:         */
1.1       kristaps 1212:
1.43      kristaps 1213:        for (body = NULL; ; ) {
1.32      kristaps 1214:                la = *pos;
1.119     schwarze 1215:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1216:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1217:                        break;
                   1218:
1.224     schwarze 1219:                if (body == NULL && mdoc_isdelim(p) == DELIM_OPEN) {
1.150     schwarze 1220:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1221:                        continue;
1.123     schwarze 1222:                }
1.1       kristaps 1223:
1.150     schwarze 1224:                if (body == NULL)
1.190     schwarze 1225:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1226:
1.153     schwarze 1227:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1228:                        break;
1.1       kristaps 1229:        }
1.150     schwarze 1230:        if (body == NULL)
1.190     schwarze 1231:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1232:
1.187     schwarze 1233:        if (find_pending(mdoc, tok, line, ppos, body))
1.183     schwarze 1234:                return;
                   1235:
1.164     schwarze 1236:        rew_last(mdoc, body);
1.150     schwarze 1237:        if (nl)
                   1238:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1239:        rew_pending(mdoc, blk);
1.117     schwarze 1240:
                   1241:        /* Move trailing .Ns out of scope. */
                   1242:
                   1243:        for (n = body->child; n && n->next; n = n->next)
                   1244:                /* Do nothing. */ ;
1.150     schwarze 1245:        if (n && n->tok == MDOC_Ns)
1.226   ! schwarze 1246:                roff_node_relink(mdoc, n);
1.1       kristaps 1247: }
                   1248:
1.151     schwarze 1249: static void
1.1       kristaps 1250: blk_part_exp(MACRO_PROT_ARGS)
                   1251: {
1.60      kristaps 1252:        int               la, nl;
1.55      kristaps 1253:        enum margserr     ac;
1.185     schwarze 1254:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1255:        char             *p;
                   1256:
1.119     schwarze 1257:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1258:
1.43      kristaps 1259:        /*
                   1260:         * The opening of an explicit macro having zero or more leading
                   1261:         * punctuation nodes; a head with optional single element (the
                   1262:         * case of `Eo'); and a body that may be empty.
                   1263:         */
1.32      kristaps 1264:
1.193     schwarze 1265:        roff_block_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1266:        head = NULL;
                   1267:        for (;;) {
1.32      kristaps 1268:                la = *pos;
1.119     schwarze 1269:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1270:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1271:                        break;
1.43      kristaps 1272:
                   1273:                /* Flush out leading punctuation. */
                   1274:
1.224     schwarze 1275:                if (head == NULL && mdoc_isdelim(p) == DELIM_OPEN) {
1.150     schwarze 1276:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1277:                        continue;
1.123     schwarze 1278:                }
1.43      kristaps 1279:
1.150     schwarze 1280:                if (head == NULL) {
1.190     schwarze 1281:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1282:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1283:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1284:                        rew_last(mdoc, head);
1.190     schwarze 1285:                        roff_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1286:                        if (tok == MDOC_Eo)
1.43      kristaps 1287:                                continue;
1.1       kristaps 1288:                }
1.43      kristaps 1289:
1.153     schwarze 1290:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1291:                        break;
1.1       kristaps 1292:        }
                   1293:
1.43      kristaps 1294:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1295:
1.163     schwarze 1296:        if (head == NULL) {
1.190     schwarze 1297:                rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
                   1298:                roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1299:        }
1.150     schwarze 1300:        if (nl)
                   1301:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1302: }
                   1303:
1.151     schwarze 1304: static void
1.1       kristaps 1305: in_line_argn(MACRO_PROT_ARGS)
                   1306: {
1.53      kristaps 1307:        struct mdoc_arg *arg;
                   1308:        char            *p;
1.181     schwarze 1309:        enum margserr    ac;
1.219     schwarze 1310:        enum roff_tok    ntok;
1.181     schwarze 1311:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1312:        int              la, maxargs, nl;
1.1       kristaps 1313:
1.156     schwarze 1314:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1315:
1.46      kristaps 1316:        /*
                   1317:         * A line macro that has a fixed number of arguments (maxargs).
                   1318:         * Only open the scope once the first non-leading-punctuation is
                   1319:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1320:         * keep it open until the maximum number of arguments are
                   1321:         * exhausted.
                   1322:         */
1.1       kristaps 1323:
                   1324:        switch (tok) {
1.131     schwarze 1325:        case MDOC_Ap:
                   1326:        case MDOC_Ns:
                   1327:        case MDOC_Ux:
1.1       kristaps 1328:                maxargs = 0;
                   1329:                break;
1.131     schwarze 1330:        case MDOC_Bx:
1.132     schwarze 1331:        case MDOC_Es:
1.131     schwarze 1332:        case MDOC_Xr:
1.42      kristaps 1333:                maxargs = 2;
                   1334:                break;
1.1       kristaps 1335:        default:
                   1336:                maxargs = 1;
                   1337:                break;
                   1338:        }
                   1339:
1.152     schwarze 1340:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1341:
1.181     schwarze 1342:        state = -1;
1.156     schwarze 1343:        p = NULL;
                   1344:        for (;;) {
1.32      kristaps 1345:                la = *pos;
1.119     schwarze 1346:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1347:
                   1348:                if (ac == ARGS_WORD && state == -1 &&
1.225     schwarze 1349:                    (mdoc_macro(tok)->flags & MDOC_IGNDELIM) == 0 &&
1.181     schwarze 1350:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1351:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1352:                        continue;
                   1353:                }
                   1354:
                   1355:                if (state == -1 && tok != MDOC_In &&
                   1356:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1357:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1358:                        state = 0;
                   1359:                }
                   1360:
1.156     schwarze 1361:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1362:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1363:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1364:                                    mdoc->parse, line, ppos, "Pf %s",
                   1365:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1366:                        break;
1.156     schwarze 1367:                }
1.1       kristaps 1368:
1.181     schwarze 1369:                if (state == maxargs) {
1.149     schwarze 1370:                        rew_elem(mdoc, tok);
1.181     schwarze 1371:                        state = -2;
1.46      kristaps 1372:                }
                   1373:
1.224     schwarze 1374:                ntok = (tok == MDOC_Pf && state == 0) ?
1.191     schwarze 1375:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1376:
1.191     schwarze 1377:                if (ntok != TOKEN_NONE) {
1.181     schwarze 1378:                        if (state >= 0) {
1.149     schwarze 1379:                                rew_elem(mdoc, tok);
1.181     schwarze 1380:                                state = -2;
                   1381:                        }
1.225     schwarze 1382:                        (*mdoc_macro(ntok)->fp)(mdoc, ntok,
                   1383:                            line, la, pos, buf);
1.1       kristaps 1384:                        break;
                   1385:                }
                   1386:
1.225     schwarze 1387:                if (mdoc_macro(tok)->flags & MDOC_IGNDELIM ||
1.181     schwarze 1388:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1389:                        if (state == -1) {
                   1390:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1391:                                state = 1;
                   1392:                        } else if (state >= 0)
                   1393:                                state++;
                   1394:                } else if (state >= 0) {
1.149     schwarze 1395:                        rew_elem(mdoc, tok);
1.181     schwarze 1396:                        state = -2;
1.1       kristaps 1397:                }
1.42      kristaps 1398:
1.150     schwarze 1399:                dword(mdoc, line, la, p, DELIM_MAX,
1.225     schwarze 1400:                    mdoc_macro(tok)->flags & MDOC_JOIN);
1.1       kristaps 1401:        }
                   1402:
1.181     schwarze 1403:        if (state == -1) {
                   1404:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.219     schwarze 1405:                    line, ppos, roff_name[tok]);
1.181     schwarze 1406:                return;
1.156     schwarze 1407:        }
1.181     schwarze 1408:
                   1409:        if (state == 0 && tok == MDOC_Pf)
                   1410:                append_delims(mdoc, line, pos, buf);
                   1411:        if (state >= 0)
1.149     schwarze 1412:                rew_elem(mdoc, tok);
1.150     schwarze 1413:        if (nl)
                   1414:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1415: }
                   1416:
1.151     schwarze 1417: static void
1.1       kristaps 1418: in_line_eoln(MACRO_PROT_ARGS)
                   1419: {
1.185     schwarze 1420:        struct roff_node        *n;
1.170     schwarze 1421:        struct mdoc_arg         *arg;
1.1       kristaps 1422:
1.170     schwarze 1423:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1424:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1425:                n = mdoc->last;
1.189     schwarze 1426:                if (mdoc->next == ROFF_NEXT_SIBLING)
1.170     schwarze 1427:                        n = n->parent;
                   1428:                if (n->tok == MDOC_Nm)
1.198     schwarze 1429:                        rew_last(mdoc, n->parent);
1.178     schwarze 1430:        }
                   1431:
1.179     schwarze 1432:        if (buf[*pos] == '\0' &&
1.219     schwarze 1433:            (tok == MDOC_Fd || *roff_name[tok] == '%')) {
1.178     schwarze 1434:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.219     schwarze 1435:                    line, ppos, roff_name[tok]);
1.178     schwarze 1436:                return;
1.170     schwarze 1437:        }
1.90      schwarze 1438:
1.152     schwarze 1439:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1440:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1441:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1442:                return;
                   1443:        rew_elem(mdoc, tok);
                   1444: }
                   1445:
                   1446: /*
                   1447:  * The simplest argument parser available: Parse the remaining
                   1448:  * words until the end of the phrase or line and return 0
                   1449:  * or until the next macro, call that macro, and return 1.
                   1450:  */
                   1451: static int
1.219     schwarze 1452: parse_rest(struct roff_man *mdoc, enum roff_tok tok,
                   1453:     int line, int *pos, char *buf)
1.154     schwarze 1454: {
                   1455:        int              la;
1.1       kristaps 1456:
                   1457:        for (;;) {
                   1458:                la = *pos;
1.153     schwarze 1459:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.202     schwarze 1460:                        return 0;
1.153     schwarze 1461:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.202     schwarze 1462:                        return 1;
1.1       kristaps 1463:        }
                   1464: }
                   1465:
1.151     schwarze 1466: static void
1.41      kristaps 1467: ctx_synopsis(MACRO_PROT_ARGS)
                   1468: {
1.60      kristaps 1469:
1.151     schwarze 1470:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1471:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1472:        else if (tok == MDOC_Nm)
                   1473:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1474:        else {
                   1475:                assert(tok == MDOC_Vt);
                   1476:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1477:        }
1.1       kristaps 1478: }
                   1479:
1.24      kristaps 1480: /*
                   1481:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1482:  * They're unusual because they're basically free-form text until a
                   1483:  * macro is encountered.
                   1484:  */
1.151     schwarze 1485: static void
1.75      kristaps 1486: phrase_ta(MACRO_PROT_ARGS)
                   1487: {
1.185     schwarze 1488:        struct roff_node *body, *n;
1.75      kristaps 1489:
1.121     schwarze 1490:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1491:
1.167     schwarze 1492:        body = NULL;
                   1493:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze 1494:                if (n->flags & NODE_ENDED)
1.167     schwarze 1495:                        continue;
1.184     schwarze 1496:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1497:                        body = n;
1.208     schwarze 1498:                if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
1.167     schwarze 1499:                        break;
                   1500:        }
                   1501:
1.151     schwarze 1502:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1503:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1504:                    line, ppos, "Ta");
1.151     schwarze 1505:                return;
1.121     schwarze 1506:        }
1.75      kristaps 1507:
1.121     schwarze 1508:        /* Advance to the next column. */
1.150     schwarze 1509:
1.167     schwarze 1510:        rew_last(mdoc, body);
1.190     schwarze 1511:        roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191     schwarze 1512:        parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75      kristaps 1513: }

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