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Annotation of mandoc/mdoc_macro.c, Revision 1.212

1.212   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.211 2017/02/10 16:20:34 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;
1.212   ! schwarze  401:                        n->flags |= NODE_BROKEN;
1.187     schwarze  402:                        if (target->type == ROFFT_HEAD)
1.212   ! schwarze  403:                                target->flags |= NODE_ENDED;
1.210     schwarze  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:                /*
1.211     schwarze  578:                 * Mismatching end macros can never break anything
1.209     schwarze  579:                 * and we only care about the breaking of BLOCKs.
                    580:                 */
1.83      schwarze  581:
1.211     schwarze  582:                if (body == NULL || n->type != ROFFT_BLOCK)
1.83      schwarze  583:                        continue;
1.160     schwarze  584:
1.211     schwarze  585:                /*
                    586:                 * SYNOPSIS name blocks can not be broken themselves,
                    587:                 * but they do get broken together with a broken child.
                    588:                 */
                    589:
                    590:                if (n->tok == MDOC_Nm) {
                    591:                        if (later != NULL)
                    592:                                n->flags |= NODE_BROKEN | NODE_ENDED;
                    593:                        continue;
                    594:                }
                    595:
1.160     schwarze  596:                if (n->tok == MDOC_It) {
1.171     schwarze  597:                        itblk = n;
1.160     schwarze  598:                        continue;
                    599:                }
                    600:
1.83      schwarze  601:                if (atok == n->tok) {
                    602:                        assert(body);
                    603:
                    604:                        /*
                    605:                         * Found the start of our own block.
                    606:                         * When there is no pending sub block,
                    607:                         * just proceed to closing out.
                    608:                         */
1.151     schwarze  609:
1.160     schwarze  610:                        if (later == NULL ||
1.171     schwarze  611:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  612:                                break;
                    613:
1.131     schwarze  614:                        /*
1.167     schwarze  615:                         * When there is a pending sub block, postpone
                    616:                         * closing out the current block until the
                    617:                         * rew_pending() closing out the sub-block.
1.83      schwarze  618:                         * Mark the place where the formatting - but not
                    619:                         * the scope - of the current block ends.
                    620:                         */
1.151     schwarze  621:
1.183     schwarze  622:                        mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
                    623:                            line, ppos, "%s breaks %s",
                    624:                            mdoc_macronames[atok],
                    625:                            mdoc_macronames[later->tok]);
                    626:
1.166     schwarze  627:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150     schwarze  628:                            atok, body, ENDBODY_SPACE);
1.151     schwarze  629:
1.183     schwarze  630:                        if (tok == MDOC_El)
1.210     schwarze  631:                                itblk->flags |= NODE_ENDED | NODE_BROKEN;
1.183     schwarze  632:
1.151     schwarze  633:                        /*
                    634:                         * If a block closing macro taking arguments
                    635:                         * breaks another block, put the arguments
1.166     schwarze  636:                         * into the end marker.
1.151     schwarze  637:                         */
                    638:
1.166     schwarze  639:                        if (maxargs)
1.189     schwarze  640:                                mdoc->next = ROFF_NEXT_CHILD;
1.83      schwarze  641:                        break;
1.182     schwarze  642:                }
                    643:
                    644:                /* Explicit blocks close out description lines. */
                    645:
                    646:                if (n->tok == MDOC_Nd) {
                    647:                        rew_last(mdoc, n);
                    648:                        continue;
1.83      schwarze  649:                }
                    650:
1.183     schwarze  651:                /* Breaking an open sub block. */
1.151     schwarze  652:
1.210     schwarze  653:                n->flags |= NODE_BROKEN;
1.183     schwarze  654:                if (later == NULL)
1.83      schwarze  655:                        later = n;
                    656:        }
1.166     schwarze  657:
                    658:        if (body == NULL) {
                    659:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
                    660:                    line, ppos, mdoc_macronames[tok]);
                    661:                if (maxargs && endbody == NULL) {
                    662:                        /*
                    663:                         * Stray .Ec without previous .Eo:
                    664:                         * Break the output line, keep the arguments.
                    665:                         */
1.193     schwarze  666:                        roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.166     schwarze  667:                        rew_elem(mdoc, MDOC_br);
                    668:                }
                    669:        } else if (endbody == NULL) {
                    670:                rew_last(mdoc, body);
                    671:                if (maxargs)
                    672:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    673:        }
1.83      schwarze  674:
1.150     schwarze  675:        if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
                    676:                if (buf[*pos] != '\0')
1.136     schwarze  677:                        mandoc_vmsg(MANDOCERR_ARG_SKIP,
                    678:                            mdoc->parse, line, ppos,
                    679:                            "%s %s", mdoc_macronames[tok],
                    680:                            buf + *pos);
1.171     schwarze  681:                if (endbody == NULL && n != NULL)
1.167     schwarze  682:                        rew_pending(mdoc, n);
1.151     schwarze  683:                return;
1.1       kristaps  684:        }
                    685:
1.166     schwarze  686:        if (endbody != NULL)
                    687:                n = endbody;
1.197     schwarze  688:
                    689:        ntok = TOKEN_NONE;
1.148     schwarze  690:        for (j = 0; ; j++) {
1.1       kristaps  691:                lastarg = *pos;
                    692:
1.186     schwarze  693:                if (j == maxargs && n != NULL)
                    694:                        rew_last(mdoc, n);
1.1       kristaps  695:
1.119     schwarze  696:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  697:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  698:                        break;
                    699:
1.191     schwarze  700:                ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.155     schwarze  701:                    lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  702:
1.191     schwarze  703:                if (ntok == TOKEN_NONE) {
1.150     schwarze  704:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
                    705:                            MDOC_JOIN & mdoc_macros[tok].flags);
1.54      kristaps  706:                        continue;
                    707:                }
1.1       kristaps  708:
1.186     schwarze  709:                if (n != NULL)
                    710:                        rew_last(mdoc, n);
1.122     schwarze  711:                mdoc->flags &= ~MDOC_NEWLINE;
1.151     schwarze  712:                mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  713:                break;
1.1       kristaps  714:        }
                    715:
1.188     schwarze  716:        if (n != NULL) {
1.212   ! schwarze  717:                pending = 0;
1.210     schwarze  718:                if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
1.188     schwarze  719:                        target = n;
                    720:                        do
                    721:                                target = target->parent;
1.210     schwarze  722:                        while ( ! (target->flags & NODE_ENDED));
1.212   ! schwarze  723:                        if ( ! (target->flags & NODE_VALID))
        !           724:                                pending = find_pending(mdoc, ntok,
        !           725:                                    line, ppos, target);
        !           726:                }
1.188     schwarze  727:                if ( ! pending)
                    728:                        rew_pending(mdoc, n);
                    729:        }
1.150     schwarze  730:        if (nl)
                    731:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  732: }
                    733:
1.151     schwarze  734: static void
1.1       kristaps  735: in_line(MACRO_PROT_ARGS)
                    736: {
1.144     schwarze  737:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.185     schwarze  738:        int              ntok;
1.55      kristaps  739:        enum margserr    ac;
1.67      schwarze  740:        enum mdelim      d;
1.53      kristaps  741:        struct mdoc_arg *arg;
                    742:        char            *p;
1.1       kristaps  743:
1.119     schwarze  744:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  745:
1.4       kristaps  746:        /*
                    747:         * Whether we allow ignored elements (those without content,
                    748:         * usually because of reserved words) to squeak by.
                    749:         */
1.45      kristaps  750:
1.4       kristaps  751:        switch (tok) {
1.131     schwarze  752:        case MDOC_An:
                    753:        case MDOC_Ar:
                    754:        case MDOC_Fl:
                    755:        case MDOC_Mt:
                    756:        case MDOC_Nm:
                    757:        case MDOC_Pa:
1.4       kristaps  758:                nc = 1;
                    759:                break;
                    760:        default:
                    761:                nc = 0;
                    762:                break;
                    763:        }
                    764:
1.152     schwarze  765:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  766:
1.144     schwarze  767:        d = DELIM_NONE;
                    768:        firstarg = 1;
1.142     schwarze  769:        mayopen = 1;
1.70      kristaps  770:        for (cnt = scope = 0;; ) {
1.1       kristaps  771:                la = *pos;
1.119     schwarze  772:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  773:
1.144     schwarze  774:                /*
                    775:                 * At the end of a macro line,
                    776:                 * opening delimiters do not suppress spacing.
                    777:                 */
                    778:
                    779:                if (ac == ARGS_EOLN) {
                    780:                        if (d == DELIM_OPEN)
1.210     schwarze  781:                                mdoc->last->flags &= ~NODE_DELIMO;
1.1       kristaps  782:                        break;
1.144     schwarze  783:                }
                    784:
                    785:                /*
                    786:                 * The rest of the macro line is only punctuation,
                    787:                 * to be handled by append_delims().
                    788:                 * If there were no other arguments,
                    789:                 * do not allow the first one to suppress spacing,
                    790:                 * even if it turns out to be a closing one.
                    791:                 */
                    792:
                    793:                if (ac == ARGS_PUNCT) {
1.176     schwarze  794:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  795:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  796:                        break;
1.144     schwarze  797:                }
1.1       kristaps  798:
1.145     schwarze  799:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.191     schwarze  800:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1       kristaps  801:
1.131     schwarze  802:                /*
1.4       kristaps  803:                 * In this case, we've located a submacro and must
                    804:                 * execute it.  Close out scope, if open.  If no
                    805:                 * elements have been generated, either create one (nc)
                    806:                 * or raise a warning.
                    807:                 */
1.1       kristaps  808:
1.191     schwarze  809:                if (ntok != TOKEN_NONE) {
1.149     schwarze  810:                        if (scope)
                    811:                                rew_elem(mdoc, tok);
1.150     schwarze  812:                        if (nc && ! cnt) {
                    813:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  814:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  815:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  816:                                mdoc_argv_free(arg);
1.135     schwarze  817:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    818:                                    mdoc->parse, line, ppos,
                    819:                                    mdoc_macronames[tok]);
1.7       kristaps  820:                        }
1.151     schwarze  821:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150     schwarze  822:                        if (nl)
                    823:                                append_delims(mdoc, line, pos, buf);
1.151     schwarze  824:                        return;
1.131     schwarze  825:                }
1.1       kristaps  826:
1.131     schwarze  827:                /*
1.4       kristaps  828:                 * Non-quote-enclosed punctuation.  Set up our scope, if
                    829:                 * a word; rewind the scope, if a delimiter; then append
1.131     schwarze  830:                 * the word.
1.4       kristaps  831:                 */
1.1       kristaps  832:
1.150     schwarze  833:                d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3       kristaps  834:
1.70      kristaps  835:                if (DELIM_NONE != d) {
                    836:                        /*
                    837:                         * If we encounter closing punctuation, no word
1.144     schwarze  838:                         * has been emitted, no scope is open, and we're
1.70      kristaps  839:                         * allowed to have an empty element, then start
1.142     schwarze  840:                         * a new scope.
1.70      kristaps  841:                         */
1.142     schwarze  842:                        if ((d == DELIM_CLOSE ||
                    843:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  844:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  845:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  846:                                scope = 1;
1.142     schwarze  847:                                cnt++;
1.150     schwarze  848:                                if (tok == MDOC_Nm)
1.142     schwarze  849:                                        mayopen = 0;
1.70      kristaps  850:                        }
                    851:                        /*
                    852:                         * Close out our scope, if one is open, before
                    853:                         * any punctuation.
                    854:                         */
1.149     schwarze  855:                        if (scope)
                    856:                                rew_elem(mdoc, tok);
1.70      kristaps  857:                        scope = 0;
1.145     schwarze  858:                        if (tok == MDOC_Fn)
                    859:                                mayopen = 0;
1.142     schwarze  860:                } else if (mayopen && !scope) {
1.150     schwarze  861:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  862:                        scope = 1;
1.142     schwarze  863:                        cnt++;
1.1       kristaps  864:                }
1.105     kristaps  865:
1.150     schwarze  866:                dword(mdoc, line, la, p, d,
                    867:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.39      kristaps  868:
                    869:                /*
1.144     schwarze  870:                 * If the first argument is a closing delimiter,
                    871:                 * do not suppress spacing before it.
                    872:                 */
                    873:
                    874:                if (firstarg && d == DELIM_CLOSE && !nc)
1.210     schwarze  875:                        mdoc->last->flags &= ~NODE_DELIMC;
1.144     schwarze  876:                firstarg = 0;
                    877:
                    878:                /*
1.39      kristaps  879:                 * `Fl' macros have their scope re-opened with each new
                    880:                 * word so that the `-' can be added to each one without
                    881:                 * having to parse out spaces.
                    882:                 */
1.150     schwarze  883:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  884:                        rew_elem(mdoc, tok);
1.70      kristaps  885:                        scope = 0;
1.39      kristaps  886:                }
1.1       kristaps  887:        }
                    888:
1.149     schwarze  889:        if (scope)
                    890:                rew_elem(mdoc, tok);
1.4       kristaps  891:
                    892:        /*
                    893:         * If no elements have been collected and we're allowed to have
                    894:         * empties (nc), open a scope and close it out.  Otherwise,
                    895:         * raise a warning.
                    896:         */
1.45      kristaps  897:
1.150     schwarze  898:        if ( ! cnt) {
                    899:                if (nc) {
                    900:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    901:                        rew_last(mdoc, mdoc->last);
                    902:                } else {
                    903:                        mdoc_argv_free(arg);
                    904:                        mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    905:                            line, ppos, mdoc_macronames[tok]);
                    906:                }
1.7       kristaps  907:        }
1.150     schwarze  908:        if (nl)
                    909:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  910: }
                    911:
1.151     schwarze  912: static void
1.1       kristaps  913: blk_full(MACRO_PROT_ARGS)
                    914: {
1.153     schwarze  915:        int               la, nl, parsed;
1.1       kristaps  916:        struct mdoc_arg  *arg;
1.185     schwarze  917:        struct roff_node *blk; /* Our own or a broken block. */
                    918:        struct roff_node *head; /* Our own head. */
                    919:        struct roff_node *body; /* Our own body. */
                    920:        struct roff_node *n;
1.59      kristaps  921:        enum margserr     ac, lac;
1.1       kristaps  922:        char             *p;
                    923:
1.119     schwarze  924:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  925:
1.177     schwarze  926:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    927:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    928:                    line, ppos, mdoc_macronames[tok]);
                    929:                return;
                    930:        }
                    931:
1.171     schwarze  932:        if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
                    933:
                    934:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    935:
                    936:                blk = NULL;
                    937:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze  938:                        if (n->flags & NODE_ENDED) {
                    939:                                if ( ! (n->flags & NODE_VALID))
                    940:                                        n->flags |= NODE_BROKEN;
1.183     schwarze  941:                                continue;
                    942:                        }
1.184     schwarze  943:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  944:                                continue;
1.183     schwarze  945:
1.171     schwarze  946:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    947:                                if (blk != NULL) {
                    948:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    949:                                            mdoc->parse, line, ppos,
                    950:                                            "It breaks %s",
                    951:                                            mdoc_macronames[blk->tok]);
                    952:                                        rew_pending(mdoc, blk);
                    953:                                }
                    954:                                break;
                    955:                        }
                    956:
                    957:                        if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    958:                                switch (tok) {
                    959:                                case MDOC_Sh:
                    960:                                case MDOC_Ss:
                    961:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    962:                                            mdoc->parse, line, ppos,
                    963:                                            "%s breaks %s",
                    964:                                            mdoc_macronames[tok],
                    965:                                            mdoc_macronames[n->tok]);
                    966:                                        rew_pending(mdoc, n);
1.180     schwarze  967:                                        n = mdoc->last;
1.171     schwarze  968:                                        continue;
                    969:                                case MDOC_It:
                    970:                                        /* Delay in case it's astray. */
                    971:                                        blk = n;
                    972:                                        continue;
                    973:                                default:
                    974:                                        break;
                    975:                                }
                    976:                                break;
                    977:                        }
                    978:
                    979:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze  980:
1.171     schwarze  981:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                    982:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                    983:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze  984:                                break;
1.171     schwarze  985:
                    986:                        /* Item breaking an explicit block. */
                    987:
                    988:                        if (blk != NULL) {
                    989:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    990:                                    mdoc->parse, line, ppos,
                    991:                                    "It breaks %s",
                    992:                                    mdoc_macronames[blk->tok]);
                    993:                                rew_pending(mdoc, blk);
1.172     schwarze  994:                                blk = NULL;
1.171     schwarze  995:                        }
                    996:
                    997:                        /* Close out prior implicit scopes. */
                    998:
1.211     schwarze  999:                        rew_pending(mdoc, n);
1.171     schwarze 1000:                }
                   1001:
                   1002:                /* Skip items outside lists. */
                   1003:
                   1004:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138     schwarze 1005:                        mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
                   1006:                            line, ppos, "It %s", buf + *pos);
1.193     schwarze 1007:                        roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.149     schwarze 1008:                        rew_elem(mdoc, MDOC_br);
1.151     schwarze 1009:                        return;
1.138     schwarze 1010:                }
1.1       kristaps 1011:        }
                   1012:
1.45      kristaps 1013:        /*
1.109     kristaps 1014:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps 1015:         * macro openings.  Implicit ones first close out prior scope
                   1016:         * (seen above).  Delay opening the head until necessary to
                   1017:         * allow leading punctuation to print.  Special consideration
                   1018:         * for `It -column', which has phrase-part syntax instead of
                   1019:         * regular child nodes.
                   1020:         */
                   1021:
1.152     schwarze 1022:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze 1023:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps 1024:        head = body = NULL;
1.115     schwarze 1025:
                   1026:        /*
                   1027:         * Exception: Heads of `It' macros in `-diag' lists are not
                   1028:         * parsed, even though `It' macros in general are parsed.
                   1029:         */
1.151     schwarze 1030:
1.153     schwarze 1031:        parsed = tok != MDOC_It ||
                   1032:            mdoc->last->parent->tok != MDOC_Bl ||
                   1033:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps 1034:
1.45      kristaps 1035:        /*
                   1036:         * The `Nd' macro has all arguments in its body: it's a hybrid
                   1037:         * of block partial-explicit and full-implicit.  Stupid.
                   1038:         */
1.19      kristaps 1039:
1.150     schwarze 1040:        if (tok == MDOC_Nd) {
1.190     schwarze 1041:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze 1042:                rew_last(mdoc, head);
1.190     schwarze 1043:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze 1044:        }
                   1045:
1.150     schwarze 1046:        if (tok == MDOC_Bk)
1.123     schwarze 1047:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps 1048:
1.205     schwarze 1049:        ac = ARGS_EOLN;
1.150     schwarze 1050:        for (;;) {
1.205     schwarze 1051:
                   1052:                /*
                   1053:                 * If we are right after a tab character,
                   1054:                 * do not parse the first word for macros.
                   1055:                 */
                   1056:
                   1057:                if (mdoc->flags & MDOC_PHRASEQN) {
                   1058:                        mdoc->flags &= ~MDOC_PHRASEQN;
                   1059:                        mdoc->flags |= MDOC_PHRASEQF;
                   1060:                }
                   1061:
1.45      kristaps 1062:                la = *pos;
1.150     schwarze 1063:                lac = ac;
1.119     schwarze 1064:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1065:                if (ac == ARGS_EOLN) {
1.205     schwarze 1066:                        if (lac != ARGS_PHRASE ||
                   1067:                            ! (mdoc->flags & MDOC_PHRASEQF))
1.75      kristaps 1068:                                break;
1.205     schwarze 1069:
1.75      kristaps 1070:                        /*
1.205     schwarze 1071:                         * This line ends in a tab; start the next
                   1072:                         * column now, with a leading blank.
1.75      kristaps 1073:                         */
1.205     schwarze 1074:
1.167     schwarze 1075:                        if (body != NULL)
                   1076:                                rew_last(mdoc, body);
1.190     schwarze 1077:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.205     schwarze 1078:                        roff_word_alloc(mdoc, line, ppos, "\\&");
1.1       kristaps 1079:                        break;
1.75      kristaps 1080:                }
1.205     schwarze 1081:
1.174     schwarze 1082:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
                   1083:                        mandoc_vmsg(MANDOCERR_ARG_EXCESS,
                   1084:                            mdoc->parse, line, la, "%s ... %s",
                   1085:                            mdoc_macronames[tok], buf + la);
                   1086:                        break;
                   1087:                }
1.173     schwarze 1088:                if (tok == MDOC_Rs) {
                   1089:                        mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
                   1090:                            line, la, "Rs %s", buf + la);
                   1091:                        break;
                   1092:                }
                   1093:                if (ac == ARGS_PUNCT)
                   1094:                        break;
1.45      kristaps 1095:
1.131     schwarze 1096:                /*
1.73      kristaps 1097:                 * Emit leading punctuation (i.e., punctuation before
1.184     schwarze 1098:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1099:                 */
1.45      kristaps 1100:
1.150     schwarze 1101:                if (head == NULL &&
                   1102:                    ac != ARGS_PHRASE &&
                   1103:                    ac != ARGS_QWORD &&
                   1104:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1105:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1106:                        continue;
                   1107:                }
                   1108:
1.74      kristaps 1109:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1110:
1.150     schwarze 1111:                if (head == NULL)
1.190     schwarze 1112:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1113:
1.205     schwarze 1114:                if (ac == ARGS_PHRASE) {
1.151     schwarze 1115:
1.73      kristaps 1116:                        /*
1.74      kristaps 1117:                         * If we haven't opened a body yet, rewind the
                   1118:                         * head; if we have, rewind that instead.
                   1119:                         */
                   1120:
1.167     schwarze 1121:                        rew_last(mdoc, body == NULL ? head : body);
1.190     schwarze 1122:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1123:
1.205     schwarze 1124:                        /* Process to the tab or to the end of the line. */
1.74      kristaps 1125:
1.205     schwarze 1126:                        mdoc->flags |= MDOC_PHRASE;
1.191     schwarze 1127:                        parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.205     schwarze 1128:                        mdoc->flags &= ~MDOC_PHRASE;
1.204     schwarze 1129:
                   1130:                        /* There may have been `Ta' macros. */
                   1131:
                   1132:                        while (body->next != NULL)
                   1133:                                body = body->next;
1.1       kristaps 1134:                        continue;
                   1135:                }
                   1136:
1.153     schwarze 1137:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1138:                        break;
1.45      kristaps 1139:        }
1.1       kristaps 1140:
1.210     schwarze 1141:        if (blk->flags & NODE_VALID)
1.165     schwarze 1142:                return;
1.150     schwarze 1143:        if (head == NULL)
1.190     schwarze 1144:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1145:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1146:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1147:        if (body != NULL)
1.77      kristaps 1148:                goto out;
1.187     schwarze 1149:        if (find_pending(mdoc, tok, line, ppos, head))
1.183     schwarze 1150:                return;
1.47      kristaps 1151:
1.45      kristaps 1152:        /* Close out scopes to remain in a consistent state. */
                   1153:
1.167     schwarze 1154:        rew_last(mdoc, head);
1.190     schwarze 1155:        body = roff_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1156: out:
1.150     schwarze 1157:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1158:                rew_last(mdoc, body);
                   1159:                rew_last(mdoc, blk);
1.150     schwarze 1160:                mdoc->flags &= ~MDOC_FREECOL;
                   1161:        }
1.1       kristaps 1162: }
                   1163:
1.151     schwarze 1164: static void
1.1       kristaps 1165: blk_part_imp(MACRO_PROT_ARGS)
                   1166: {
1.63      kristaps 1167:        int               la, nl;
1.55      kristaps 1168:        enum margserr     ac;
1.1       kristaps 1169:        char             *p;
1.185     schwarze 1170:        struct roff_node *blk; /* saved block context */
                   1171:        struct roff_node *body; /* saved body context */
                   1172:        struct roff_node *n;
1.1       kristaps 1173:
1.119     schwarze 1174:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1175:
1.43      kristaps 1176:        /*
                   1177:         * A macro that spans to the end of the line.  This is generally
                   1178:         * (but not necessarily) called as the first macro.  The block
                   1179:         * has a head as the immediate child, which is always empty,
                   1180:         * followed by zero or more opening punctuation nodes, then the
                   1181:         * body (which may be empty, depending on the macro), then zero
                   1182:         * or more closing punctuation nodes.
                   1183:         */
1.32      kristaps 1184:
1.150     schwarze 1185:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190     schwarze 1186:        rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1187:
1.43      kristaps 1188:        /*
                   1189:         * Open the body scope "on-demand", that is, after we've
                   1190:         * processed all our the leading delimiters (open parenthesis,
                   1191:         * etc.).
                   1192:         */
1.1       kristaps 1193:
1.43      kristaps 1194:        for (body = NULL; ; ) {
1.32      kristaps 1195:                la = *pos;
1.119     schwarze 1196:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1197:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1198:                        break;
                   1199:
1.150     schwarze 1200:                if (body == NULL && ac != ARGS_QWORD &&
                   1201:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1202:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1203:                        continue;
1.123     schwarze 1204:                }
1.1       kristaps 1205:
1.150     schwarze 1206:                if (body == NULL)
1.190     schwarze 1207:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1208:
1.153     schwarze 1209:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1210:                        break;
1.1       kristaps 1211:        }
1.150     schwarze 1212:        if (body == NULL)
1.190     schwarze 1213:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1214:
1.187     schwarze 1215:        if (find_pending(mdoc, tok, line, ppos, body))
1.183     schwarze 1216:                return;
                   1217:
1.164     schwarze 1218:        rew_last(mdoc, body);
1.150     schwarze 1219:        if (nl)
                   1220:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1221:        rew_pending(mdoc, blk);
1.117     schwarze 1222:
                   1223:        /* Move trailing .Ns out of scope. */
                   1224:
                   1225:        for (n = body->child; n && n->next; n = n->next)
                   1226:                /* Do nothing. */ ;
1.150     schwarze 1227:        if (n && n->tok == MDOC_Ns)
1.119     schwarze 1228:                mdoc_node_relink(mdoc, n);
1.1       kristaps 1229: }
                   1230:
1.151     schwarze 1231: static void
1.1       kristaps 1232: blk_part_exp(MACRO_PROT_ARGS)
                   1233: {
1.60      kristaps 1234:        int               la, nl;
1.55      kristaps 1235:        enum margserr     ac;
1.185     schwarze 1236:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1237:        char             *p;
                   1238:
1.119     schwarze 1239:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1240:
1.43      kristaps 1241:        /*
                   1242:         * The opening of an explicit macro having zero or more leading
                   1243:         * punctuation nodes; a head with optional single element (the
                   1244:         * case of `Eo'); and a body that may be empty.
                   1245:         */
1.32      kristaps 1246:
1.193     schwarze 1247:        roff_block_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1248:        head = NULL;
                   1249:        for (;;) {
1.32      kristaps 1250:                la = *pos;
1.119     schwarze 1251:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1252:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1253:                        break;
1.43      kristaps 1254:
                   1255:                /* Flush out leading punctuation. */
                   1256:
1.150     schwarze 1257:                if (head == NULL && ac != ARGS_QWORD &&
                   1258:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1259:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1260:                        continue;
1.123     schwarze 1261:                }
1.43      kristaps 1262:
1.150     schwarze 1263:                if (head == NULL) {
1.190     schwarze 1264:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1265:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1266:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1267:                        rew_last(mdoc, head);
1.190     schwarze 1268:                        roff_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1269:                        if (tok == MDOC_Eo)
1.43      kristaps 1270:                                continue;
1.1       kristaps 1271:                }
1.43      kristaps 1272:
1.153     schwarze 1273:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1274:                        break;
1.1       kristaps 1275:        }
                   1276:
1.43      kristaps 1277:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1278:
1.163     schwarze 1279:        if (head == NULL) {
1.190     schwarze 1280:                rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
                   1281:                roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1282:        }
1.150     schwarze 1283:        if (nl)
                   1284:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1285: }
                   1286:
1.151     schwarze 1287: static void
1.1       kristaps 1288: in_line_argn(MACRO_PROT_ARGS)
                   1289: {
1.53      kristaps 1290:        struct mdoc_arg *arg;
                   1291:        char            *p;
1.181     schwarze 1292:        enum margserr    ac;
1.185     schwarze 1293:        int              ntok;
1.181     schwarze 1294:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1295:        int              la, maxargs, nl;
1.1       kristaps 1296:
1.156     schwarze 1297:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1298:
1.46      kristaps 1299:        /*
                   1300:         * A line macro that has a fixed number of arguments (maxargs).
                   1301:         * Only open the scope once the first non-leading-punctuation is
                   1302:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1303:         * keep it open until the maximum number of arguments are
                   1304:         * exhausted.
                   1305:         */
1.1       kristaps 1306:
                   1307:        switch (tok) {
1.131     schwarze 1308:        case MDOC_Ap:
                   1309:        case MDOC_Ns:
                   1310:        case MDOC_Ux:
1.1       kristaps 1311:                maxargs = 0;
                   1312:                break;
1.131     schwarze 1313:        case MDOC_Bx:
1.132     schwarze 1314:        case MDOC_Es:
1.131     schwarze 1315:        case MDOC_Xr:
1.42      kristaps 1316:                maxargs = 2;
                   1317:                break;
1.1       kristaps 1318:        default:
                   1319:                maxargs = 1;
                   1320:                break;
                   1321:        }
                   1322:
1.152     schwarze 1323:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1324:
1.181     schwarze 1325:        state = -1;
1.156     schwarze 1326:        p = NULL;
                   1327:        for (;;) {
1.32      kristaps 1328:                la = *pos;
1.119     schwarze 1329:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1330:
                   1331:                if (ac == ARGS_WORD && state == -1 &&
                   1332:                    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
                   1333:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1334:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1335:                        continue;
                   1336:                }
                   1337:
                   1338:                if (state == -1 && tok != MDOC_In &&
                   1339:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1340:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1341:                        state = 0;
                   1342:                }
                   1343:
1.156     schwarze 1344:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1345:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1346:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1347:                                    mdoc->parse, line, ppos, "Pf %s",
                   1348:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1349:                        break;
1.156     schwarze 1350:                }
1.1       kristaps 1351:
1.181     schwarze 1352:                if (state == maxargs) {
1.149     schwarze 1353:                        rew_elem(mdoc, tok);
1.181     schwarze 1354:                        state = -2;
1.46      kristaps 1355:                }
                   1356:
1.181     schwarze 1357:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.191     schwarze 1358:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1359:
1.191     schwarze 1360:                if (ntok != TOKEN_NONE) {
1.181     schwarze 1361:                        if (state >= 0) {
1.149     schwarze 1362:                                rew_elem(mdoc, tok);
1.181     schwarze 1363:                                state = -2;
                   1364:                        }
1.151     schwarze 1365:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1       kristaps 1366:                        break;
                   1367:                }
                   1368:
1.181     schwarze 1369:                if (ac == ARGS_QWORD ||
                   1370:                    mdoc_macros[tok].flags & MDOC_IGNDELIM ||
                   1371:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1372:                        if (state == -1) {
                   1373:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1374:                                state = 1;
                   1375:                        } else if (state >= 0)
                   1376:                                state++;
                   1377:                } else if (state >= 0) {
1.149     schwarze 1378:                        rew_elem(mdoc, tok);
1.181     schwarze 1379:                        state = -2;
1.1       kristaps 1380:                }
1.42      kristaps 1381:
1.150     schwarze 1382:                dword(mdoc, line, la, p, DELIM_MAX,
                   1383:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.1       kristaps 1384:        }
                   1385:
1.181     schwarze 1386:        if (state == -1) {
                   1387:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                   1388:                    line, ppos, mdoc_macronames[tok]);
                   1389:                return;
1.156     schwarze 1390:        }
1.181     schwarze 1391:
                   1392:        if (state == 0 && tok == MDOC_Pf)
                   1393:                append_delims(mdoc, line, pos, buf);
                   1394:        if (state >= 0)
1.149     schwarze 1395:                rew_elem(mdoc, tok);
1.150     schwarze 1396:        if (nl)
                   1397:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1398: }
                   1399:
1.151     schwarze 1400: static void
1.1       kristaps 1401: in_line_eoln(MACRO_PROT_ARGS)
                   1402: {
1.185     schwarze 1403:        struct roff_node        *n;
1.170     schwarze 1404:        struct mdoc_arg         *arg;
1.1       kristaps 1405:
1.170     schwarze 1406:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1407:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1408:                n = mdoc->last;
1.189     schwarze 1409:                if (mdoc->next == ROFF_NEXT_SIBLING)
1.170     schwarze 1410:                        n = n->parent;
                   1411:                if (n->tok == MDOC_Nm)
1.198     schwarze 1412:                        rew_last(mdoc, n->parent);
1.178     schwarze 1413:        }
                   1414:
1.179     schwarze 1415:        if (buf[*pos] == '\0' &&
                   1416:            (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178     schwarze 1417:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179     schwarze 1418:                    line, ppos, mdoc_macronames[tok]);
1.178     schwarze 1419:                return;
1.170     schwarze 1420:        }
1.90      schwarze 1421:
1.152     schwarze 1422:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1423:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1424:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1425:                return;
                   1426:        rew_elem(mdoc, tok);
                   1427: }
                   1428:
                   1429: /*
                   1430:  * The simplest argument parser available: Parse the remaining
                   1431:  * words until the end of the phrase or line and return 0
                   1432:  * or until the next macro, call that macro, and return 1.
                   1433:  */
                   1434: static int
1.189     schwarze 1435: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154     schwarze 1436: {
                   1437:        int              la;
1.1       kristaps 1438:
                   1439:        for (;;) {
                   1440:                la = *pos;
1.153     schwarze 1441:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.202     schwarze 1442:                        return 0;
1.153     schwarze 1443:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.202     schwarze 1444:                        return 1;
1.1       kristaps 1445:        }
                   1446: }
                   1447:
1.151     schwarze 1448: static void
1.41      kristaps 1449: ctx_synopsis(MACRO_PROT_ARGS)
                   1450: {
1.60      kristaps 1451:
1.151     schwarze 1452:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1453:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1454:        else if (tok == MDOC_Nm)
                   1455:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1456:        else {
                   1457:                assert(tok == MDOC_Vt);
                   1458:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1459:        }
1.1       kristaps 1460: }
                   1461:
1.24      kristaps 1462: /*
                   1463:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1464:  * They're unusual because they're basically free-form text until a
                   1465:  * macro is encountered.
                   1466:  */
1.151     schwarze 1467: static void
1.75      kristaps 1468: phrase_ta(MACRO_PROT_ARGS)
                   1469: {
1.185     schwarze 1470:        struct roff_node *body, *n;
1.75      kristaps 1471:
1.121     schwarze 1472:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1473:
1.167     schwarze 1474:        body = NULL;
                   1475:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze 1476:                if (n->flags & NODE_ENDED)
1.167     schwarze 1477:                        continue;
1.184     schwarze 1478:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1479:                        body = n;
1.208     schwarze 1480:                if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
1.167     schwarze 1481:                        break;
                   1482:        }
                   1483:
1.151     schwarze 1484:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1485:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1486:                    line, ppos, "Ta");
1.151     schwarze 1487:                return;
1.121     schwarze 1488:        }
1.75      kristaps 1489:
1.121     schwarze 1490:        /* Advance to the next column. */
1.150     schwarze 1491:
1.167     schwarze 1492:        rew_last(mdoc, body);
1.190     schwarze 1493:        roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191     schwarze 1494:        parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75      kristaps 1495: }

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