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Annotation of mandoc/mdoc_macro.c, Revision 1.210

1.210   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.209 2016/08/20 17:59:34 schwarze Exp $ */
1.1       kristaps    2: /*
1.116     schwarze    3:  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.209     schwarze    4:  * Copyright (c) 2010, 2012-2016 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
1.8       kristaps    7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    9:  *
1.184     schwarze   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.8       kristaps   11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.184     schwarze   12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.8       kristaps   13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   17:  */
1.40      kristaps   18: #include "config.h"
1.140     schwarze   19:
                     20: #include <sys/types.h>
1.40      kristaps   21:
1.1       kristaps   22: #include <assert.h>
                     23: #include <ctype.h>
                     24: #include <stdlib.h>
                     25: #include <stdio.h>
                     26: #include <string.h>
1.38      kristaps   27: #include <time.h>
1.1       kristaps   28:
1.184     schwarze   29: #include "mandoc.h"
                     30: #include "roff.h"
1.106     kristaps   31: #include "mdoc.h"
1.184     schwarze   32: #include "libmandoc.h"
1.190     schwarze   33: #include "roff_int.h"
1.1       kristaps   34: #include "libmdoc.h"
                     35:
1.151     schwarze   36: static void            blk_full(MACRO_PROT_ARGS);
                     37: static void            blk_exp_close(MACRO_PROT_ARGS);
                     38: static void            blk_part_exp(MACRO_PROT_ARGS);
                     39: static void            blk_part_imp(MACRO_PROT_ARGS);
                     40: static void            ctx_synopsis(MACRO_PROT_ARGS);
                     41: static void            in_line_eoln(MACRO_PROT_ARGS);
                     42: static void            in_line_argn(MACRO_PROT_ARGS);
                     43: static void            in_line(MACRO_PROT_ARGS);
                     44: static void            phrase_ta(MACRO_PROT_ARGS);
1.53      kristaps   45:
1.189     schwarze   46: static void            append_delims(struct roff_man *, int, int *, char *);
                     47: static void            dword(struct roff_man *, int, int, const char *,
1.187     schwarze   48:                                enum mdelim, int);
1.189     schwarze   49: static int             find_pending(struct roff_man *, int, int, int,
1.187     schwarze   50:                                struct roff_node *);
1.189     schwarze   51: static int             lookup(struct roff_man *, int, int, int, const char *);
1.153     schwarze   52: static int             macro_or_word(MACRO_PROT_ARGS, int);
1.189     schwarze   53: static int             parse_rest(struct roff_man *, int, int, int *, char *);
1.185     schwarze   54: static int             rew_alt(int);
1.189     schwarze   55: static void            rew_elem(struct roff_man *, int);
                     56: static void            rew_last(struct roff_man *, const struct roff_node *);
                     57: static void            rew_pending(struct roff_man *,
                     58:                                const struct roff_node *);
1.1       kristaps   59:
                     60: const  struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123     schwarze   61:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1       kristaps   62:        { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
                     63:        { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
                     64:        { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123     schwarze   65:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
                     66:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
                     67:        { in_line_eoln, 0 }, /* Pp */
                     68:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
                     69:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1       kristaps   70:        { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123     schwarze   71:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1       kristaps   72:        { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123     schwarze   73:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
                     74:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
                     75:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
                     76:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1       kristaps   77:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129     schwarze   78:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1       kristaps   79:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123     schwarze   80:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
                     81:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
                     82:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1       kristaps   83:        { in_line_eoln, 0 }, /* Ex */
1.123     schwarze   84:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
                     85:        { in_line_eoln, 0 }, /* Fd */
1.1       kristaps   86:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123     schwarze   87:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
                     88:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128     schwarze   89:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18      kristaps   90:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123     schwarze   91:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
                     92:        { blk_full, MDOC_JOIN }, /* Nd */
                     93:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1       kristaps   94:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132     schwarze   95:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1       kristaps   96:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
                     97:        { in_line_eoln, 0 }, /* Rv */
1.123     schwarze   98:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1       kristaps   99:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123     schwarze  100:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42      kristaps  101:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123     schwarze  102:        { in_line_eoln, MDOC_JOIN }, /* %A */
                    103:        { in_line_eoln, MDOC_JOIN }, /* %B */
                    104:        { in_line_eoln, MDOC_JOIN }, /* %D */
                    105:        { in_line_eoln, MDOC_JOIN }, /* %I */
                    106:        { in_line_eoln, MDOC_JOIN }, /* %J */
1.1       kristaps  107:        { in_line_eoln, 0 }, /* %N */
1.123     schwarze  108:        { in_line_eoln, MDOC_JOIN }, /* %O */
1.1       kristaps  109:        { in_line_eoln, 0 }, /* %P */
1.123     schwarze  110:        { in_line_eoln, MDOC_JOIN }, /* %R */
                    111:        { in_line_eoln, MDOC_JOIN }, /* %T */
1.1       kristaps  112:        { in_line_eoln, 0 }, /* %V */
1.123     schwarze  113:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    114:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
                    115:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    116:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
                    117:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1       kristaps  118:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123     schwarze  119:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    120:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
                    121:        { blk_full, MDOC_EXPLICIT }, /* Bf */
                    122:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    123:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
                    124:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1       kristaps  125:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
                    126:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
                    127:        { in_line_eoln, 0 }, /* Db */
1.123     schwarze  128:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    129:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
                    130:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    131:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
                    132:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
                    133:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
                    134:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
                    135:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1       kristaps  136:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
                    137:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11      kristaps  138:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144     schwarze  139:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123     schwarze  140:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
                    141:                        MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1       kristaps  142:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
                    143:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123     schwarze  144:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    145:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52      kristaps  146:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123     schwarze  147:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    148:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
                    149:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
                    150:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    151:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
                    152:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
                    153:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    154:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
                    155:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
                    156:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1       kristaps  157:        { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123     schwarze  158:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    159:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
                    160:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    161:                        MDOC_EXPLICIT | MDOC_JOIN }, /* So */
                    162:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147     schwarze  163:        { in_line_argn, 0 }, /* Sm */
1.123     schwarze  164:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
                    165:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1       kristaps  166:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123     schwarze  167:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1       kristaps  168:        { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
                    169:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123     schwarze  170:        { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
                    171:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    172:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
                    173:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    174:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
                    175:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    176:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1       kristaps  177:        { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123     schwarze  178:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1       kristaps  179:        { in_line_eoln, 0 }, /* Bt */
                    180:        { in_line_eoln, 0 }, /* Hf */
1.132     schwarze  181:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1       kristaps  182:        { in_line_eoln, 0 }, /* Ud */
1.69      kristaps  183:        { in_line, 0 }, /* Lb */
1.123     schwarze  184:        { in_line_eoln, 0 }, /* Lp */
                    185:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
                    186:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
                    187:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
                    188:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    189:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
                    190:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    191:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
                    192:        { in_line_eoln, MDOC_JOIN }, /* %C */
1.132     schwarze  193:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
                    194:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1       kristaps  195:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123     schwarze  196:        { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20      kristaps  197:        { in_line_eoln, 0 }, /* br */
                    198:        { in_line_eoln, 0 }, /* sp */
1.37      kristaps  199:        { in_line_eoln, 0 }, /* %U */
1.123     schwarze  200:        { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143     schwarze  201:        { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1       kristaps  202: };
                    203:
                    204: const  struct mdoc_macro * const mdoc_macros = __mdoc_macros;
                    205:
                    206:
                    207: /*
                    208:  * This is called at the end of parsing.  It must traverse up the tree,
                    209:  * closing out open [implicit] scopes.  Obviously, open explicit scopes
                    210:  * are errors.
                    211:  */
1.151     schwarze  212: void
1.195     schwarze  213: mdoc_endparse(struct roff_man *mdoc)
1.1       kristaps  214: {
1.185     schwarze  215:        struct roff_node *n;
1.1       kristaps  216:
                    217:        /* Scan for open explicit scopes. */
                    218:
1.210   ! schwarze  219:        n = mdoc->last->flags & NODE_VALID ?
1.131     schwarze  220:            mdoc->last->parent : mdoc->last;
1.1       kristaps  221:
1.94      schwarze  222:        for ( ; n; n = n->parent)
1.184     schwarze  223:                if (n->type == ROFFT_BLOCK &&
1.151     schwarze  224:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137     schwarze  225:                        mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
                    226:                            n->line, n->pos, mdoc_macronames[n->tok]);
1.1       kristaps  227:
1.32      kristaps  228:        /* Rewind to the first. */
                    229:
1.149     schwarze  230:        rew_last(mdoc, mdoc->first);
1.206     schwarze  231:        mdoc_state_reset(mdoc);
1.1       kristaps  232: }
                    233:
1.32      kristaps  234: /*
1.153     schwarze  235:  * Look up the macro at *p called by "from",
1.191     schwarze  236:  * or as a line macro if from == TOKEN_NONE.
1.32      kristaps  237:  */
1.185     schwarze  238: static int
1.189     schwarze  239: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.28      kristaps  240: {
1.185     schwarze  241:        int      res;
1.1       kristaps  242:
1.205     schwarze  243:        if (mdoc->flags & MDOC_PHRASEQF) {
                    244:                mdoc->flags &= ~MDOC_PHRASEQF;
                    245:                return TOKEN_NONE;
                    246:        }
1.191     schwarze  247:        if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.153     schwarze  248:                res = mdoc_hash_find(p);
1.191     schwarze  249:                if (res != TOKEN_NONE) {
1.155     schwarze  250:                        if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.202     schwarze  251:                                return res;
1.155     schwarze  252:                        if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
                    253:                                mandoc_msg(MANDOCERR_MACRO_CALL,
                    254:                                    mdoc->parse, line, ppos, p);
                    255:                }
1.153     schwarze  256:        }
1.202     schwarze  257:        return TOKEN_NONE;
1.1       kristaps  258: }
                    259:
1.166     schwarze  260: /*
                    261:  * Rewind up to and including a specific node.
                    262:  */
1.149     schwarze  263: static void
1.189     schwarze  264: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1       kristaps  265: {
                    266:
1.210   ! schwarze  267:        if (to->flags & NODE_VALID)
1.186     schwarze  268:                return;
                    269:
1.1       kristaps  270:        while (mdoc->last != to) {
1.206     schwarze  271:                mdoc_state(mdoc, mdoc->last);
1.210   ! schwarze  272:                mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.206     schwarze  273:                mdoc->last = mdoc->last->parent;
1.1       kristaps  274:        }
1.206     schwarze  275:        mdoc_state(mdoc, mdoc->last);
1.210   ! schwarze  276:        mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.200     schwarze  277:        mdoc->next = ROFF_NEXT_SIBLING;
1.1       kristaps  278: }
                    279:
1.32      kristaps  280: /*
1.166     schwarze  281:  * Rewind up to a specific block, including all blocks that broke it.
                    282:  */
                    283: static void
1.189     schwarze  284: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.166     schwarze  285: {
                    286:
1.183     schwarze  287:        for (;;) {
                    288:                rew_last(mdoc, n);
                    289:
1.194     schwarze  290:                if (mdoc->last == n) {
                    291:                        switch (n->type) {
                    292:                        case ROFFT_HEAD:
                    293:                                roff_body_alloc(mdoc, n->line, n->pos,
                    294:                                    n->tok);
1.207     schwarze  295:                                break;
1.194     schwarze  296:                        case ROFFT_BLOCK:
                    297:                                break;
                    298:                        default:
                    299:                                return;
                    300:                        }
1.210   ! schwarze  301:                        if ( ! (n->flags & NODE_BROKEN))
1.194     schwarze  302:                                return;
                    303:                } else
                    304:                        n = mdoc->last;
1.166     schwarze  305:
1.183     schwarze  306:                for (;;) {
                    307:                        if ((n = n->parent) == NULL)
                    308:                                return;
                    309:
1.184     schwarze  310:                        if (n->type == ROFFT_BLOCK ||
                    311:                            n->type == ROFFT_HEAD) {
1.210   ! schwarze  312:                                if (n->flags & NODE_ENDED)
1.183     schwarze  313:                                        break;
                    314:                                else
                    315:                                        return;
                    316:                        }
                    317:                }
1.166     schwarze  318:        }
                    319: }
                    320:
                    321: /*
1.84      schwarze  322:  * For a block closing macro, return the corresponding opening one.
                    323:  * Otherwise, return the macro itself.
1.32      kristaps  324:  */
1.185     schwarze  325: static int
                    326: rew_alt(int tok)
1.1       kristaps  327: {
                    328:        switch (tok) {
1.131     schwarze  329:        case MDOC_Ac:
1.202     schwarze  330:                return MDOC_Ao;
1.131     schwarze  331:        case MDOC_Bc:
1.202     schwarze  332:                return MDOC_Bo;
1.131     schwarze  333:        case MDOC_Brc:
1.202     schwarze  334:                return MDOC_Bro;
1.131     schwarze  335:        case MDOC_Dc:
1.202     schwarze  336:                return MDOC_Do;
1.131     schwarze  337:        case MDOC_Ec:
1.202     schwarze  338:                return MDOC_Eo;
1.131     schwarze  339:        case MDOC_Ed:
1.202     schwarze  340:                return MDOC_Bd;
1.131     schwarze  341:        case MDOC_Ef:
1.202     schwarze  342:                return MDOC_Bf;
1.131     schwarze  343:        case MDOC_Ek:
1.202     schwarze  344:                return MDOC_Bk;
1.131     schwarze  345:        case MDOC_El:
1.202     schwarze  346:                return MDOC_Bl;
1.131     schwarze  347:        case MDOC_Fc:
1.202     schwarze  348:                return MDOC_Fo;
1.131     schwarze  349:        case MDOC_Oc:
1.202     schwarze  350:                return MDOC_Oo;
1.131     schwarze  351:        case MDOC_Pc:
1.202     schwarze  352:                return MDOC_Po;
1.131     schwarze  353:        case MDOC_Qc:
1.202     schwarze  354:                return MDOC_Qo;
1.131     schwarze  355:        case MDOC_Re:
1.202     schwarze  356:                return MDOC_Rs;
1.131     schwarze  357:        case MDOC_Sc:
1.202     schwarze  358:                return MDOC_So;
1.131     schwarze  359:        case MDOC_Xc:
1.202     schwarze  360:                return MDOC_Xo;
1.1       kristaps  361:        default:
1.202     schwarze  362:                return tok;
1.1       kristaps  363:        }
                    364: }
                    365:
1.149     schwarze  366: static void
1.189     schwarze  367: rew_elem(struct roff_man *mdoc, int tok)
1.1       kristaps  368: {
1.185     schwarze  369:        struct roff_node *n;
1.1       kristaps  370:
                    371:        n = mdoc->last;
1.184     schwarze  372:        if (n->type != ROFFT_ELEM)
1.1       kristaps  373:                n = n->parent;
1.184     schwarze  374:        assert(n->type == ROFFT_ELEM);
1.1       kristaps  375:        assert(tok == n->tok);
1.149     schwarze  376:        rew_last(mdoc, n);
1.1       kristaps  377: }
                    378:
1.83      schwarze  379: /*
1.187     schwarze  380:  * If there is an open sub-block of the target requiring
                    381:  * explicit close-out, postpone closing out the target until
                    382:  * the rew_pending() call closing out the sub-block.
                    383:  */
                    384: static int
1.189     schwarze  385: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.187     schwarze  386:        struct roff_node *target)
                    387: {
                    388:        struct roff_node        *n;
                    389:        int                      irc;
                    390:
                    391:        irc = 0;
                    392:        for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
1.210   ! schwarze  393:                if (n->flags & NODE_ENDED) {
        !           394:                        if ( ! (n->flags & NODE_VALID))
        !           395:                                n->flags |= NODE_BROKEN;
1.187     schwarze  396:                        continue;
                    397:                }
                    398:                if (n->type == ROFFT_BLOCK &&
                    399:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    400:                        irc = 1;
1.210   ! schwarze  401:                        n->flags = NODE_BROKEN;
1.187     schwarze  402:                        if (target->type == ROFFT_HEAD)
1.210   ! schwarze  403:                                target->flags = NODE_ENDED;
        !           404:                        else if ( ! (target->flags & NODE_ENDED)) {
1.187     schwarze  405:                                mandoc_vmsg(MANDOCERR_BLK_NEST,
                    406:                                    mdoc->parse, line, ppos,
                    407:                                    "%s breaks %s", mdoc_macronames[tok],
                    408:                                    mdoc_macronames[n->tok]);
                    409:                                mdoc_endbody_alloc(mdoc, line, ppos,
                    410:                                    tok, target, ENDBODY_NOSPACE);
                    411:                        }
                    412:                }
                    413:        }
1.202     schwarze  414:        return irc;
1.187     schwarze  415: }
                    416:
                    417: /*
1.105     kristaps  418:  * Allocate a word and check whether it's punctuation or not.
                    419:  * Punctuation consists of those tokens found in mdoc_isdelim().
                    420:  */
1.150     schwarze  421: static void
1.189     schwarze  422: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123     schwarze  423:                enum mdelim d, int may_append)
1.105     kristaps  424: {
1.131     schwarze  425:
1.150     schwarze  426:        if (d == DELIM_MAX)
1.105     kristaps  427:                d = mdoc_isdelim(p);
                    428:
1.123     schwarze  429:        if (may_append &&
1.150     schwarze  430:            ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184     schwarze  431:            d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150     schwarze  432:            mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.192     schwarze  433:                roff_word_append(mdoc, p);
1.150     schwarze  434:                return;
1.123     schwarze  435:        }
                    436:
1.192     schwarze  437:        roff_word_alloc(mdoc, line, col, p);
1.105     kristaps  438:
1.108     schwarze  439:        /*
1.144     schwarze  440:         * If the word consists of a bare delimiter,
                    441:         * flag the new node accordingly,
                    442:         * unless doing so was vetoed by the invoking macro.
                    443:         * Always clear the veto, it is only valid for one word.
1.108     schwarze  444:         */
                    445:
1.144     schwarze  446:        if (d == DELIM_OPEN)
1.210   ! schwarze  447:                mdoc->last->flags |= NODE_DELIMO;
1.144     schwarze  448:        else if (d == DELIM_CLOSE &&
                    449:            ! (mdoc->flags & MDOC_NODELIMC) &&
1.131     schwarze  450:            mdoc->last->parent->tok != MDOC_Fd)
1.210   ! schwarze  451:                mdoc->last->flags |= NODE_DELIMC;
1.144     schwarze  452:        mdoc->flags &= ~MDOC_NODELIMC;
1.105     kristaps  453: }
1.1       kristaps  454:
1.150     schwarze  455: static void
1.189     schwarze  456: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1       kristaps  457: {
1.153     schwarze  458:        char            *p;
1.66      kristaps  459:        int              la;
1.1       kristaps  460:
1.150     schwarze  461:        if (buf[*pos] == '\0')
                    462:                return;
1.1       kristaps  463:
                    464:        for (;;) {
1.66      kristaps  465:                la = *pos;
1.191     schwarze  466:                if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
                    467:                    ARGS_EOLN)
1.1       kristaps  468:                        break;
1.123     schwarze  469:                dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66      kristaps  470:
                    471:                /*
                    472:                 * If we encounter end-of-sentence symbols, then trigger
                    473:                 * the double-space.
                    474:                 *
1.109     kristaps  475:                 * XXX: it's easy to allow this to propagate outward to
1.66      kristaps  476:                 * the last symbol, such that `. )' will cause the
                    477:                 * correct double-spacing.  However, (1) groff isn't
                    478:                 * smart enough to do this and (2) it would require
                    479:                 * knowing which symbols break this behaviour, for
1.109     kristaps  480:                 * example, `.  ;' shouldn't propagate the double-space.
1.66      kristaps  481:                 */
1.150     schwarze  482:
1.127     schwarze  483:                if (mandoc_eos(p, strlen(p)))
1.210   ! schwarze  484:                        mdoc->last->flags |= NODE_EOS;
1.1       kristaps  485:        }
                    486: }
                    487:
                    488: /*
1.153     schwarze  489:  * Parse one word.
                    490:  * If it is a macro, call it and return 1.
                    491:  * Otherwise, allocate it and return 0.
                    492:  */
                    493: static int
                    494: macro_or_word(MACRO_PROT_ARGS, int parsed)
                    495: {
                    496:        char            *p;
1.185     schwarze  497:        int              ntok;
1.153     schwarze  498:
                    499:        p = buf + ppos;
1.191     schwarze  500:        ntok = TOKEN_NONE;
1.157     schwarze  501:        if (*p == '"')
1.153     schwarze  502:                p++;
1.157     schwarze  503:        else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155     schwarze  504:                ntok = lookup(mdoc, tok, line, ppos, p);
1.153     schwarze  505:
1.191     schwarze  506:        if (ntok == TOKEN_NONE) {
                    507:                dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.153     schwarze  508:                    mdoc_macros[tok].flags & MDOC_JOIN);
1.202     schwarze  509:                return 0;
1.153     schwarze  510:        } else {
                    511:                if (mdoc_macros[tok].fp == in_line_eoln)
                    512:                        rew_elem(mdoc, tok);
                    513:                mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.191     schwarze  514:                if (tok == TOKEN_NONE)
1.153     schwarze  515:                        append_delims(mdoc, line, pos, buf);
1.202     schwarze  516:                return 1;
1.153     schwarze  517:        }
                    518: }
                    519:
                    520: /*
1.131     schwarze  521:  * Close out block partial/full explicit.
1.1       kristaps  522:  */
1.151     schwarze  523: static void
1.1       kristaps  524: blk_exp_close(MACRO_PROT_ARGS)
                    525: {
1.185     schwarze  526:        struct roff_node *body;         /* Our own body. */
                    527:        struct roff_node *endbody;      /* Our own end marker. */
                    528:        struct roff_node *itblk;        /* An It block starting later. */
                    529:        struct roff_node *later;        /* A sub-block starting later. */
                    530:        struct roff_node *n;            /* Search back to our block. */
1.188     schwarze  531:        struct roff_node *target;       /* For find_pending(). */
1.83      schwarze  532:
1.188     schwarze  533:        int              j, lastarg, maxargs, nl, pending;
1.55      kristaps  534:        enum margserr    ac;
1.185     schwarze  535:        int              atok, ntok;
1.1       kristaps  536:        char            *p;
                    537:
1.119     schwarze  538:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  539:
1.1       kristaps  540:        switch (tok) {
1.131     schwarze  541:        case MDOC_Ec:
1.1       kristaps  542:                maxargs = 1;
                    543:                break;
1.131     schwarze  544:        case MDOC_Ek:
1.125     schwarze  545:                mdoc->flags &= ~MDOC_KEEP;
1.151     schwarze  546:                /* FALLTHROUGH */
1.1       kristaps  547:        default:
                    548:                maxargs = 0;
                    549:                break;
                    550:        }
                    551:
1.209     schwarze  552:        /* Search backwards for the beginning of our own body. */
                    553:
                    554:        atok = rew_alt(tok);
                    555:        body = NULL;
                    556:        for (n = mdoc->last; n; n = n->parent) {
1.210   ! schwarze  557:                if (n->flags & NODE_ENDED || n->tok != atok ||
1.209     schwarze  558:                    n->type != ROFFT_BODY || n->end != ENDBODY_NOT)
                    559:                        continue;
                    560:                body = n;
                    561:                break;
                    562:        }
                    563:
1.83      schwarze  564:        /*
                    565:         * Search backwards for beginnings of blocks,
                    566:         * both of our own and of pending sub-blocks.
                    567:         */
1.151     schwarze  568:
1.209     schwarze  569:        endbody = itblk = later = NULL;
1.119     schwarze  570:        for (n = mdoc->last; n; n = n->parent) {
1.210   ! schwarze  571:                if (n->flags & NODE_ENDED) {
        !           572:                        if ( ! (n->flags & NODE_VALID))
        !           573:                                n->flags |= NODE_BROKEN;
1.83      schwarze  574:                        continue;
1.183     schwarze  575:                }
1.83      schwarze  576:
1.209     schwarze  577:                /*
                    578:                 * Mismatching end macros can never break anything,
                    579:                 * SYNOPSIS name blocks can never be broken,
                    580:                 * and we only care about the breaking of BLOCKs.
                    581:                 */
1.83      schwarze  582:
1.209     schwarze  583:                if (body == NULL ||
                    584:                    n->tok == MDOC_Nm ||
                    585:                    n->type != ROFFT_BLOCK)
1.83      schwarze  586:                        continue;
1.160     schwarze  587:
                    588:                if (n->tok == MDOC_It) {
1.171     schwarze  589:                        itblk = n;
1.160     schwarze  590:                        continue;
                    591:                }
                    592:
1.83      schwarze  593:                if (atok == n->tok) {
                    594:                        assert(body);
                    595:
                    596:                        /*
                    597:                         * Found the start of our own block.
                    598:                         * When there is no pending sub block,
                    599:                         * just proceed to closing out.
                    600:                         */
1.151     schwarze  601:
1.160     schwarze  602:                        if (later == NULL ||
1.171     schwarze  603:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  604:                                break;
                    605:
1.131     schwarze  606:                        /*
1.167     schwarze  607:                         * When there is a pending sub block, postpone
                    608:                         * closing out the current block until the
                    609:                         * rew_pending() closing out the sub-block.
1.83      schwarze  610:                         * Mark the place where the formatting - but not
                    611:                         * the scope - of the current block ends.
                    612:                         */
1.151     schwarze  613:
1.183     schwarze  614:                        mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
                    615:                            line, ppos, "%s breaks %s",
                    616:                            mdoc_macronames[atok],
                    617:                            mdoc_macronames[later->tok]);
                    618:
1.166     schwarze  619:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150     schwarze  620:                            atok, body, ENDBODY_SPACE);
1.151     schwarze  621:
1.183     schwarze  622:                        if (tok == MDOC_El)
1.210   ! schwarze  623:                                itblk->flags |= NODE_ENDED | NODE_BROKEN;
1.183     schwarze  624:
1.151     schwarze  625:                        /*
                    626:                         * If a block closing macro taking arguments
                    627:                         * breaks another block, put the arguments
1.166     schwarze  628:                         * into the end marker.
1.151     schwarze  629:                         */
                    630:
1.166     schwarze  631:                        if (maxargs)
1.189     schwarze  632:                                mdoc->next = ROFF_NEXT_CHILD;
1.83      schwarze  633:                        break;
1.182     schwarze  634:                }
                    635:
                    636:                /* Explicit blocks close out description lines. */
                    637:
                    638:                if (n->tok == MDOC_Nd) {
                    639:                        rew_last(mdoc, n);
                    640:                        continue;
1.83      schwarze  641:                }
                    642:
1.183     schwarze  643:                /* Breaking an open sub block. */
1.151     schwarze  644:
1.210   ! schwarze  645:                n->flags |= NODE_BROKEN;
1.183     schwarze  646:                if (later == NULL)
1.83      schwarze  647:                        later = n;
                    648:        }
1.166     schwarze  649:
                    650:        if (body == NULL) {
                    651:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
                    652:                    line, ppos, mdoc_macronames[tok]);
                    653:                if (maxargs && endbody == NULL) {
                    654:                        /*
                    655:                         * Stray .Ec without previous .Eo:
                    656:                         * Break the output line, keep the arguments.
                    657:                         */
1.193     schwarze  658:                        roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.166     schwarze  659:                        rew_elem(mdoc, MDOC_br);
                    660:                }
                    661:        } else if (endbody == NULL) {
                    662:                rew_last(mdoc, body);
                    663:                if (maxargs)
                    664:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    665:        }
1.83      schwarze  666:
1.150     schwarze  667:        if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
                    668:                if (buf[*pos] != '\0')
1.136     schwarze  669:                        mandoc_vmsg(MANDOCERR_ARG_SKIP,
                    670:                            mdoc->parse, line, ppos,
                    671:                            "%s %s", mdoc_macronames[tok],
                    672:                            buf + *pos);
1.171     schwarze  673:                if (endbody == NULL && n != NULL)
1.167     schwarze  674:                        rew_pending(mdoc, n);
1.151     schwarze  675:                return;
1.1       kristaps  676:        }
                    677:
1.166     schwarze  678:        if (endbody != NULL)
                    679:                n = endbody;
1.197     schwarze  680:
                    681:        ntok = TOKEN_NONE;
1.148     schwarze  682:        for (j = 0; ; j++) {
1.1       kristaps  683:                lastarg = *pos;
                    684:
1.186     schwarze  685:                if (j == maxargs && n != NULL)
                    686:                        rew_last(mdoc, n);
1.1       kristaps  687:
1.119     schwarze  688:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  689:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  690:                        break;
                    691:
1.191     schwarze  692:                ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.155     schwarze  693:                    lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  694:
1.191     schwarze  695:                if (ntok == TOKEN_NONE) {
1.150     schwarze  696:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
                    697:                            MDOC_JOIN & mdoc_macros[tok].flags);
1.54      kristaps  698:                        continue;
                    699:                }
1.1       kristaps  700:
1.186     schwarze  701:                if (n != NULL)
                    702:                        rew_last(mdoc, n);
1.122     schwarze  703:                mdoc->flags &= ~MDOC_NEWLINE;
1.151     schwarze  704:                mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  705:                break;
1.1       kristaps  706:        }
                    707:
1.188     schwarze  708:        if (n != NULL) {
1.210   ! schwarze  709:                if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
1.188     schwarze  710:                        target = n;
                    711:                        do
                    712:                                target = target->parent;
1.210   ! schwarze  713:                        while ( ! (target->flags & NODE_ENDED));
1.188     schwarze  714:                        pending = find_pending(mdoc, ntok, line, ppos,
                    715:                            target);
                    716:                } else
                    717:                        pending = 0;
                    718:                if ( ! pending)
                    719:                        rew_pending(mdoc, n);
                    720:        }
1.150     schwarze  721:        if (nl)
                    722:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  723: }
                    724:
1.151     schwarze  725: static void
1.1       kristaps  726: in_line(MACRO_PROT_ARGS)
                    727: {
1.144     schwarze  728:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.185     schwarze  729:        int              ntok;
1.55      kristaps  730:        enum margserr    ac;
1.67      schwarze  731:        enum mdelim      d;
1.53      kristaps  732:        struct mdoc_arg *arg;
                    733:        char            *p;
1.1       kristaps  734:
1.119     schwarze  735:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  736:
1.4       kristaps  737:        /*
                    738:         * Whether we allow ignored elements (those without content,
                    739:         * usually because of reserved words) to squeak by.
                    740:         */
1.45      kristaps  741:
1.4       kristaps  742:        switch (tok) {
1.131     schwarze  743:        case MDOC_An:
                    744:        case MDOC_Ar:
                    745:        case MDOC_Fl:
                    746:        case MDOC_Mt:
                    747:        case MDOC_Nm:
                    748:        case MDOC_Pa:
1.4       kristaps  749:                nc = 1;
                    750:                break;
                    751:        default:
                    752:                nc = 0;
                    753:                break;
                    754:        }
                    755:
1.152     schwarze  756:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  757:
1.144     schwarze  758:        d = DELIM_NONE;
                    759:        firstarg = 1;
1.142     schwarze  760:        mayopen = 1;
1.70      kristaps  761:        for (cnt = scope = 0;; ) {
1.1       kristaps  762:                la = *pos;
1.119     schwarze  763:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  764:
1.144     schwarze  765:                /*
                    766:                 * At the end of a macro line,
                    767:                 * opening delimiters do not suppress spacing.
                    768:                 */
                    769:
                    770:                if (ac == ARGS_EOLN) {
                    771:                        if (d == DELIM_OPEN)
1.210   ! schwarze  772:                                mdoc->last->flags &= ~NODE_DELIMO;
1.1       kristaps  773:                        break;
1.144     schwarze  774:                }
                    775:
                    776:                /*
                    777:                 * The rest of the macro line is only punctuation,
                    778:                 * to be handled by append_delims().
                    779:                 * If there were no other arguments,
                    780:                 * do not allow the first one to suppress spacing,
                    781:                 * even if it turns out to be a closing one.
                    782:                 */
                    783:
                    784:                if (ac == ARGS_PUNCT) {
1.176     schwarze  785:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  786:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  787:                        break;
1.144     schwarze  788:                }
1.1       kristaps  789:
1.145     schwarze  790:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.191     schwarze  791:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1       kristaps  792:
1.131     schwarze  793:                /*
1.4       kristaps  794:                 * In this case, we've located a submacro and must
                    795:                 * execute it.  Close out scope, if open.  If no
                    796:                 * elements have been generated, either create one (nc)
                    797:                 * or raise a warning.
                    798:                 */
1.1       kristaps  799:
1.191     schwarze  800:                if (ntok != TOKEN_NONE) {
1.149     schwarze  801:                        if (scope)
                    802:                                rew_elem(mdoc, tok);
1.150     schwarze  803:                        if (nc && ! cnt) {
                    804:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  805:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  806:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  807:                                mdoc_argv_free(arg);
1.135     schwarze  808:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    809:                                    mdoc->parse, line, ppos,
                    810:                                    mdoc_macronames[tok]);
1.7       kristaps  811:                        }
1.151     schwarze  812:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150     schwarze  813:                        if (nl)
                    814:                                append_delims(mdoc, line, pos, buf);
1.151     schwarze  815:                        return;
1.131     schwarze  816:                }
1.1       kristaps  817:
1.131     schwarze  818:                /*
1.4       kristaps  819:                 * Non-quote-enclosed punctuation.  Set up our scope, if
                    820:                 * a word; rewind the scope, if a delimiter; then append
1.131     schwarze  821:                 * the word.
1.4       kristaps  822:                 */
1.1       kristaps  823:
1.150     schwarze  824:                d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3       kristaps  825:
1.70      kristaps  826:                if (DELIM_NONE != d) {
                    827:                        /*
                    828:                         * If we encounter closing punctuation, no word
1.144     schwarze  829:                         * has been emitted, no scope is open, and we're
1.70      kristaps  830:                         * allowed to have an empty element, then start
1.142     schwarze  831:                         * a new scope.
1.70      kristaps  832:                         */
1.142     schwarze  833:                        if ((d == DELIM_CLOSE ||
                    834:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  835:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  836:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  837:                                scope = 1;
1.142     schwarze  838:                                cnt++;
1.150     schwarze  839:                                if (tok == MDOC_Nm)
1.142     schwarze  840:                                        mayopen = 0;
1.70      kristaps  841:                        }
                    842:                        /*
                    843:                         * Close out our scope, if one is open, before
                    844:                         * any punctuation.
                    845:                         */
1.149     schwarze  846:                        if (scope)
                    847:                                rew_elem(mdoc, tok);
1.70      kristaps  848:                        scope = 0;
1.145     schwarze  849:                        if (tok == MDOC_Fn)
                    850:                                mayopen = 0;
1.142     schwarze  851:                } else if (mayopen && !scope) {
1.150     schwarze  852:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  853:                        scope = 1;
1.142     schwarze  854:                        cnt++;
1.1       kristaps  855:                }
1.105     kristaps  856:
1.150     schwarze  857:                dword(mdoc, line, la, p, d,
                    858:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.39      kristaps  859:
                    860:                /*
1.144     schwarze  861:                 * If the first argument is a closing delimiter,
                    862:                 * do not suppress spacing before it.
                    863:                 */
                    864:
                    865:                if (firstarg && d == DELIM_CLOSE && !nc)
1.210   ! schwarze  866:                        mdoc->last->flags &= ~NODE_DELIMC;
1.144     schwarze  867:                firstarg = 0;
                    868:
                    869:                /*
1.39      kristaps  870:                 * `Fl' macros have their scope re-opened with each new
                    871:                 * word so that the `-' can be added to each one without
                    872:                 * having to parse out spaces.
                    873:                 */
1.150     schwarze  874:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  875:                        rew_elem(mdoc, tok);
1.70      kristaps  876:                        scope = 0;
1.39      kristaps  877:                }
1.1       kristaps  878:        }
                    879:
1.149     schwarze  880:        if (scope)
                    881:                rew_elem(mdoc, tok);
1.4       kristaps  882:
                    883:        /*
                    884:         * If no elements have been collected and we're allowed to have
                    885:         * empties (nc), open a scope and close it out.  Otherwise,
                    886:         * raise a warning.
                    887:         */
1.45      kristaps  888:
1.150     schwarze  889:        if ( ! cnt) {
                    890:                if (nc) {
                    891:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    892:                        rew_last(mdoc, mdoc->last);
                    893:                } else {
                    894:                        mdoc_argv_free(arg);
                    895:                        mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    896:                            line, ppos, mdoc_macronames[tok]);
                    897:                }
1.7       kristaps  898:        }
1.150     schwarze  899:        if (nl)
                    900:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  901: }
                    902:
1.151     schwarze  903: static void
1.1       kristaps  904: blk_full(MACRO_PROT_ARGS)
                    905: {
1.153     schwarze  906:        int               la, nl, parsed;
1.1       kristaps  907:        struct mdoc_arg  *arg;
1.185     schwarze  908:        struct roff_node *blk; /* Our own or a broken block. */
                    909:        struct roff_node *head; /* Our own head. */
                    910:        struct roff_node *body; /* Our own body. */
                    911:        struct roff_node *n;
1.59      kristaps  912:        enum margserr     ac, lac;
1.1       kristaps  913:        char             *p;
                    914:
1.119     schwarze  915:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  916:
1.177     schwarze  917:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    918:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    919:                    line, ppos, mdoc_macronames[tok]);
                    920:                return;
                    921:        }
                    922:
1.171     schwarze  923:        if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
                    924:
                    925:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    926:
                    927:                blk = NULL;
                    928:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.210   ! schwarze  929:                        if (n->flags & NODE_ENDED) {
        !           930:                                if ( ! (n->flags & NODE_VALID))
        !           931:                                        n->flags |= NODE_BROKEN;
1.183     schwarze  932:                                continue;
                    933:                        }
1.184     schwarze  934:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  935:                                continue;
1.183     schwarze  936:
1.171     schwarze  937:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    938:                                if (blk != NULL) {
                    939:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    940:                                            mdoc->parse, line, ppos,
                    941:                                            "It breaks %s",
                    942:                                            mdoc_macronames[blk->tok]);
                    943:                                        rew_pending(mdoc, blk);
                    944:                                }
                    945:                                break;
                    946:                        }
                    947:
                    948:                        if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    949:                                switch (tok) {
                    950:                                case MDOC_Sh:
                    951:                                case MDOC_Ss:
                    952:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    953:                                            mdoc->parse, line, ppos,
                    954:                                            "%s breaks %s",
                    955:                                            mdoc_macronames[tok],
                    956:                                            mdoc_macronames[n->tok]);
                    957:                                        rew_pending(mdoc, n);
1.180     schwarze  958:                                        n = mdoc->last;
1.171     schwarze  959:                                        continue;
                    960:                                case MDOC_It:
                    961:                                        /* Delay in case it's astray. */
                    962:                                        blk = n;
                    963:                                        continue;
                    964:                                default:
                    965:                                        break;
                    966:                                }
                    967:                                break;
                    968:                        }
                    969:
                    970:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze  971:
1.171     schwarze  972:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                    973:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                    974:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze  975:                                break;
1.171     schwarze  976:
                    977:                        /* Item breaking an explicit block. */
                    978:
                    979:                        if (blk != NULL) {
                    980:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    981:                                    mdoc->parse, line, ppos,
                    982:                                    "It breaks %s",
                    983:                                    mdoc_macronames[blk->tok]);
                    984:                                rew_pending(mdoc, blk);
1.172     schwarze  985:                                blk = NULL;
1.171     schwarze  986:                        }
                    987:
                    988:                        /* Close out prior implicit scopes. */
                    989:
                    990:                        rew_last(mdoc, n);
                    991:                }
                    992:
                    993:                /* Skip items outside lists. */
                    994:
                    995:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138     schwarze  996:                        mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
                    997:                            line, ppos, "It %s", buf + *pos);
1.193     schwarze  998:                        roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.149     schwarze  999:                        rew_elem(mdoc, MDOC_br);
1.151     schwarze 1000:                        return;
1.138     schwarze 1001:                }
1.1       kristaps 1002:        }
                   1003:
1.45      kristaps 1004:        /*
1.109     kristaps 1005:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps 1006:         * macro openings.  Implicit ones first close out prior scope
                   1007:         * (seen above).  Delay opening the head until necessary to
                   1008:         * allow leading punctuation to print.  Special consideration
                   1009:         * for `It -column', which has phrase-part syntax instead of
                   1010:         * regular child nodes.
                   1011:         */
                   1012:
1.152     schwarze 1013:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze 1014:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps 1015:        head = body = NULL;
1.115     schwarze 1016:
                   1017:        /*
                   1018:         * Exception: Heads of `It' macros in `-diag' lists are not
                   1019:         * parsed, even though `It' macros in general are parsed.
                   1020:         */
1.151     schwarze 1021:
1.153     schwarze 1022:        parsed = tok != MDOC_It ||
                   1023:            mdoc->last->parent->tok != MDOC_Bl ||
                   1024:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps 1025:
1.45      kristaps 1026:        /*
                   1027:         * The `Nd' macro has all arguments in its body: it's a hybrid
                   1028:         * of block partial-explicit and full-implicit.  Stupid.
                   1029:         */
1.19      kristaps 1030:
1.150     schwarze 1031:        if (tok == MDOC_Nd) {
1.190     schwarze 1032:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze 1033:                rew_last(mdoc, head);
1.190     schwarze 1034:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze 1035:        }
                   1036:
1.150     schwarze 1037:        if (tok == MDOC_Bk)
1.123     schwarze 1038:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps 1039:
1.205     schwarze 1040:        ac = ARGS_EOLN;
1.150     schwarze 1041:        for (;;) {
1.205     schwarze 1042:
                   1043:                /*
                   1044:                 * If we are right after a tab character,
                   1045:                 * do not parse the first word for macros.
                   1046:                 */
                   1047:
                   1048:                if (mdoc->flags & MDOC_PHRASEQN) {
                   1049:                        mdoc->flags &= ~MDOC_PHRASEQN;
                   1050:                        mdoc->flags |= MDOC_PHRASEQF;
                   1051:                }
                   1052:
1.45      kristaps 1053:                la = *pos;
1.150     schwarze 1054:                lac = ac;
1.119     schwarze 1055:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1056:                if (ac == ARGS_EOLN) {
1.205     schwarze 1057:                        if (lac != ARGS_PHRASE ||
                   1058:                            ! (mdoc->flags & MDOC_PHRASEQF))
1.75      kristaps 1059:                                break;
1.205     schwarze 1060:
1.75      kristaps 1061:                        /*
1.205     schwarze 1062:                         * This line ends in a tab; start the next
                   1063:                         * column now, with a leading blank.
1.75      kristaps 1064:                         */
1.205     schwarze 1065:
1.167     schwarze 1066:                        if (body != NULL)
                   1067:                                rew_last(mdoc, body);
1.190     schwarze 1068:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.205     schwarze 1069:                        roff_word_alloc(mdoc, line, ppos, "\\&");
1.1       kristaps 1070:                        break;
1.75      kristaps 1071:                }
1.205     schwarze 1072:
1.174     schwarze 1073:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
                   1074:                        mandoc_vmsg(MANDOCERR_ARG_EXCESS,
                   1075:                            mdoc->parse, line, la, "%s ... %s",
                   1076:                            mdoc_macronames[tok], buf + la);
                   1077:                        break;
                   1078:                }
1.173     schwarze 1079:                if (tok == MDOC_Rs) {
                   1080:                        mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
                   1081:                            line, la, "Rs %s", buf + la);
                   1082:                        break;
                   1083:                }
                   1084:                if (ac == ARGS_PUNCT)
                   1085:                        break;
1.45      kristaps 1086:
1.131     schwarze 1087:                /*
1.73      kristaps 1088:                 * Emit leading punctuation (i.e., punctuation before
1.184     schwarze 1089:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1090:                 */
1.45      kristaps 1091:
1.150     schwarze 1092:                if (head == NULL &&
                   1093:                    ac != ARGS_PHRASE &&
                   1094:                    ac != ARGS_QWORD &&
                   1095:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1096:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1097:                        continue;
                   1098:                }
                   1099:
1.74      kristaps 1100:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1101:
1.150     schwarze 1102:                if (head == NULL)
1.190     schwarze 1103:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1104:
1.205     schwarze 1105:                if (ac == ARGS_PHRASE) {
1.151     schwarze 1106:
1.73      kristaps 1107:                        /*
1.74      kristaps 1108:                         * If we haven't opened a body yet, rewind the
                   1109:                         * head; if we have, rewind that instead.
                   1110:                         */
                   1111:
1.167     schwarze 1112:                        rew_last(mdoc, body == NULL ? head : body);
1.190     schwarze 1113:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1114:
1.205     schwarze 1115:                        /* Process to the tab or to the end of the line. */
1.74      kristaps 1116:
1.205     schwarze 1117:                        mdoc->flags |= MDOC_PHRASE;
1.191     schwarze 1118:                        parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.205     schwarze 1119:                        mdoc->flags &= ~MDOC_PHRASE;
1.204     schwarze 1120:
                   1121:                        /* There may have been `Ta' macros. */
                   1122:
                   1123:                        while (body->next != NULL)
                   1124:                                body = body->next;
1.1       kristaps 1125:                        continue;
                   1126:                }
                   1127:
1.153     schwarze 1128:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1129:                        break;
1.45      kristaps 1130:        }
1.1       kristaps 1131:
1.210   ! schwarze 1132:        if (blk->flags & NODE_VALID)
1.165     schwarze 1133:                return;
1.150     schwarze 1134:        if (head == NULL)
1.190     schwarze 1135:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1136:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1137:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1138:        if (body != NULL)
1.77      kristaps 1139:                goto out;
1.187     schwarze 1140:        if (find_pending(mdoc, tok, line, ppos, head))
1.183     schwarze 1141:                return;
1.47      kristaps 1142:
1.45      kristaps 1143:        /* Close out scopes to remain in a consistent state. */
                   1144:
1.167     schwarze 1145:        rew_last(mdoc, head);
1.190     schwarze 1146:        body = roff_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1147: out:
1.150     schwarze 1148:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1149:                rew_last(mdoc, body);
                   1150:                rew_last(mdoc, blk);
1.150     schwarze 1151:                mdoc->flags &= ~MDOC_FREECOL;
                   1152:        }
1.1       kristaps 1153: }
                   1154:
1.151     schwarze 1155: static void
1.1       kristaps 1156: blk_part_imp(MACRO_PROT_ARGS)
                   1157: {
1.63      kristaps 1158:        int               la, nl;
1.55      kristaps 1159:        enum margserr     ac;
1.1       kristaps 1160:        char             *p;
1.185     schwarze 1161:        struct roff_node *blk; /* saved block context */
                   1162:        struct roff_node *body; /* saved body context */
                   1163:        struct roff_node *n;
1.1       kristaps 1164:
1.119     schwarze 1165:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1166:
1.43      kristaps 1167:        /*
                   1168:         * A macro that spans to the end of the line.  This is generally
                   1169:         * (but not necessarily) called as the first macro.  The block
                   1170:         * has a head as the immediate child, which is always empty,
                   1171:         * followed by zero or more opening punctuation nodes, then the
                   1172:         * body (which may be empty, depending on the macro), then zero
                   1173:         * or more closing punctuation nodes.
                   1174:         */
1.32      kristaps 1175:
1.150     schwarze 1176:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190     schwarze 1177:        rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1178:
1.43      kristaps 1179:        /*
                   1180:         * Open the body scope "on-demand", that is, after we've
                   1181:         * processed all our the leading delimiters (open parenthesis,
                   1182:         * etc.).
                   1183:         */
1.1       kristaps 1184:
1.43      kristaps 1185:        for (body = NULL; ; ) {
1.32      kristaps 1186:                la = *pos;
1.119     schwarze 1187:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1188:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1189:                        break;
                   1190:
1.150     schwarze 1191:                if (body == NULL && ac != ARGS_QWORD &&
                   1192:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1193:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1194:                        continue;
1.123     schwarze 1195:                }
1.1       kristaps 1196:
1.150     schwarze 1197:                if (body == NULL)
1.190     schwarze 1198:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1199:
1.153     schwarze 1200:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1201:                        break;
1.1       kristaps 1202:        }
1.150     schwarze 1203:        if (body == NULL)
1.190     schwarze 1204:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1205:
1.187     schwarze 1206:        if (find_pending(mdoc, tok, line, ppos, body))
1.183     schwarze 1207:                return;
                   1208:
1.164     schwarze 1209:        rew_last(mdoc, body);
1.150     schwarze 1210:        if (nl)
                   1211:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1212:        rew_pending(mdoc, blk);
1.117     schwarze 1213:
                   1214:        /* Move trailing .Ns out of scope. */
                   1215:
                   1216:        for (n = body->child; n && n->next; n = n->next)
                   1217:                /* Do nothing. */ ;
1.150     schwarze 1218:        if (n && n->tok == MDOC_Ns)
1.119     schwarze 1219:                mdoc_node_relink(mdoc, n);
1.1       kristaps 1220: }
                   1221:
1.151     schwarze 1222: static void
1.1       kristaps 1223: blk_part_exp(MACRO_PROT_ARGS)
                   1224: {
1.60      kristaps 1225:        int               la, nl;
1.55      kristaps 1226:        enum margserr     ac;
1.185     schwarze 1227:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1228:        char             *p;
                   1229:
1.119     schwarze 1230:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1231:
1.43      kristaps 1232:        /*
                   1233:         * The opening of an explicit macro having zero or more leading
                   1234:         * punctuation nodes; a head with optional single element (the
                   1235:         * case of `Eo'); and a body that may be empty.
                   1236:         */
1.32      kristaps 1237:
1.193     schwarze 1238:        roff_block_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1239:        head = NULL;
                   1240:        for (;;) {
1.32      kristaps 1241:                la = *pos;
1.119     schwarze 1242:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1243:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1244:                        break;
1.43      kristaps 1245:
                   1246:                /* Flush out leading punctuation. */
                   1247:
1.150     schwarze 1248:                if (head == NULL && ac != ARGS_QWORD &&
                   1249:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1250:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1251:                        continue;
1.123     schwarze 1252:                }
1.43      kristaps 1253:
1.150     schwarze 1254:                if (head == NULL) {
1.190     schwarze 1255:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1256:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1257:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1258:                        rew_last(mdoc, head);
1.190     schwarze 1259:                        roff_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1260:                        if (tok == MDOC_Eo)
1.43      kristaps 1261:                                continue;
1.1       kristaps 1262:                }
1.43      kristaps 1263:
1.153     schwarze 1264:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1265:                        break;
1.1       kristaps 1266:        }
                   1267:
1.43      kristaps 1268:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1269:
1.163     schwarze 1270:        if (head == NULL) {
1.190     schwarze 1271:                rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
                   1272:                roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1273:        }
1.150     schwarze 1274:        if (nl)
                   1275:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1276: }
                   1277:
1.151     schwarze 1278: static void
1.1       kristaps 1279: in_line_argn(MACRO_PROT_ARGS)
                   1280: {
1.53      kristaps 1281:        struct mdoc_arg *arg;
                   1282:        char            *p;
1.181     schwarze 1283:        enum margserr    ac;
1.185     schwarze 1284:        int              ntok;
1.181     schwarze 1285:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1286:        int              la, maxargs, nl;
1.1       kristaps 1287:
1.156     schwarze 1288:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1289:
1.46      kristaps 1290:        /*
                   1291:         * A line macro that has a fixed number of arguments (maxargs).
                   1292:         * Only open the scope once the first non-leading-punctuation is
                   1293:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1294:         * keep it open until the maximum number of arguments are
                   1295:         * exhausted.
                   1296:         */
1.1       kristaps 1297:
                   1298:        switch (tok) {
1.131     schwarze 1299:        case MDOC_Ap:
                   1300:        case MDOC_Ns:
                   1301:        case MDOC_Ux:
1.1       kristaps 1302:                maxargs = 0;
                   1303:                break;
1.131     schwarze 1304:        case MDOC_Bx:
1.132     schwarze 1305:        case MDOC_Es:
1.131     schwarze 1306:        case MDOC_Xr:
1.42      kristaps 1307:                maxargs = 2;
                   1308:                break;
1.1       kristaps 1309:        default:
                   1310:                maxargs = 1;
                   1311:                break;
                   1312:        }
                   1313:
1.152     schwarze 1314:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1315:
1.181     schwarze 1316:        state = -1;
1.156     schwarze 1317:        p = NULL;
                   1318:        for (;;) {
1.32      kristaps 1319:                la = *pos;
1.119     schwarze 1320:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1321:
                   1322:                if (ac == ARGS_WORD && state == -1 &&
                   1323:                    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
                   1324:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1325:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1326:                        continue;
                   1327:                }
                   1328:
                   1329:                if (state == -1 && tok != MDOC_In &&
                   1330:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1331:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1332:                        state = 0;
                   1333:                }
                   1334:
1.156     schwarze 1335:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1336:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1337:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1338:                                    mdoc->parse, line, ppos, "Pf %s",
                   1339:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1340:                        break;
1.156     schwarze 1341:                }
1.1       kristaps 1342:
1.181     schwarze 1343:                if (state == maxargs) {
1.149     schwarze 1344:                        rew_elem(mdoc, tok);
1.181     schwarze 1345:                        state = -2;
1.46      kristaps 1346:                }
                   1347:
1.181     schwarze 1348:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.191     schwarze 1349:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1350:
1.191     schwarze 1351:                if (ntok != TOKEN_NONE) {
1.181     schwarze 1352:                        if (state >= 0) {
1.149     schwarze 1353:                                rew_elem(mdoc, tok);
1.181     schwarze 1354:                                state = -2;
                   1355:                        }
1.151     schwarze 1356:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1       kristaps 1357:                        break;
                   1358:                }
                   1359:
1.181     schwarze 1360:                if (ac == ARGS_QWORD ||
                   1361:                    mdoc_macros[tok].flags & MDOC_IGNDELIM ||
                   1362:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1363:                        if (state == -1) {
                   1364:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1365:                                state = 1;
                   1366:                        } else if (state >= 0)
                   1367:                                state++;
                   1368:                } else if (state >= 0) {
1.149     schwarze 1369:                        rew_elem(mdoc, tok);
1.181     schwarze 1370:                        state = -2;
1.1       kristaps 1371:                }
1.42      kristaps 1372:
1.150     schwarze 1373:                dword(mdoc, line, la, p, DELIM_MAX,
                   1374:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.1       kristaps 1375:        }
                   1376:
1.181     schwarze 1377:        if (state == -1) {
                   1378:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                   1379:                    line, ppos, mdoc_macronames[tok]);
                   1380:                return;
1.156     schwarze 1381:        }
1.181     schwarze 1382:
                   1383:        if (state == 0 && tok == MDOC_Pf)
                   1384:                append_delims(mdoc, line, pos, buf);
                   1385:        if (state >= 0)
1.149     schwarze 1386:                rew_elem(mdoc, tok);
1.150     schwarze 1387:        if (nl)
                   1388:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1389: }
                   1390:
1.151     schwarze 1391: static void
1.1       kristaps 1392: in_line_eoln(MACRO_PROT_ARGS)
                   1393: {
1.185     schwarze 1394:        struct roff_node        *n;
1.170     schwarze 1395:        struct mdoc_arg         *arg;
1.1       kristaps 1396:
1.170     schwarze 1397:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1398:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1399:                n = mdoc->last;
1.189     schwarze 1400:                if (mdoc->next == ROFF_NEXT_SIBLING)
1.170     schwarze 1401:                        n = n->parent;
                   1402:                if (n->tok == MDOC_Nm)
1.198     schwarze 1403:                        rew_last(mdoc, n->parent);
1.178     schwarze 1404:        }
                   1405:
1.179     schwarze 1406:        if (buf[*pos] == '\0' &&
                   1407:            (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178     schwarze 1408:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179     schwarze 1409:                    line, ppos, mdoc_macronames[tok]);
1.178     schwarze 1410:                return;
1.170     schwarze 1411:        }
1.90      schwarze 1412:
1.152     schwarze 1413:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1414:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1415:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1416:                return;
                   1417:        rew_elem(mdoc, tok);
                   1418: }
                   1419:
                   1420: /*
                   1421:  * The simplest argument parser available: Parse the remaining
                   1422:  * words until the end of the phrase or line and return 0
                   1423:  * or until the next macro, call that macro, and return 1.
                   1424:  */
                   1425: static int
1.189     schwarze 1426: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154     schwarze 1427: {
                   1428:        int              la;
1.1       kristaps 1429:
                   1430:        for (;;) {
                   1431:                la = *pos;
1.153     schwarze 1432:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.202     schwarze 1433:                        return 0;
1.153     schwarze 1434:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.202     schwarze 1435:                        return 1;
1.1       kristaps 1436:        }
                   1437: }
                   1438:
1.151     schwarze 1439: static void
1.41      kristaps 1440: ctx_synopsis(MACRO_PROT_ARGS)
                   1441: {
1.60      kristaps 1442:
1.151     schwarze 1443:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1444:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1445:        else if (tok == MDOC_Nm)
                   1446:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1447:        else {
                   1448:                assert(tok == MDOC_Vt);
                   1449:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1450:        }
1.1       kristaps 1451: }
                   1452:
1.24      kristaps 1453: /*
                   1454:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1455:  * They're unusual because they're basically free-form text until a
                   1456:  * macro is encountered.
                   1457:  */
1.151     schwarze 1458: static void
1.75      kristaps 1459: phrase_ta(MACRO_PROT_ARGS)
                   1460: {
1.185     schwarze 1461:        struct roff_node *body, *n;
1.75      kristaps 1462:
1.121     schwarze 1463:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1464:
1.167     schwarze 1465:        body = NULL;
                   1466:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.210   ! schwarze 1467:                if (n->flags & NODE_ENDED)
1.167     schwarze 1468:                        continue;
1.184     schwarze 1469:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1470:                        body = n;
1.208     schwarze 1471:                if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
1.167     schwarze 1472:                        break;
                   1473:        }
                   1474:
1.151     schwarze 1475:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1476:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1477:                    line, ppos, "Ta");
1.151     schwarze 1478:                return;
1.121     schwarze 1479:        }
1.75      kristaps 1480:
1.121     schwarze 1481:        /* Advance to the next column. */
1.150     schwarze 1482:
1.167     schwarze 1483:        rew_last(mdoc, body);
1.190     schwarze 1484:        roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191     schwarze 1485:        parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75      kristaps 1486: }

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