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Annotation of mandoc/mdoc_macro.c, Revision 1.202

1.202   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.201 2015/09/26 00:54:04 schwarze Exp $ */
1.1       kristaps    2: /*
1.116     schwarze    3:  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.162     schwarze    4:  * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
1.8       kristaps    7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    9:  *
1.184     schwarze   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.8       kristaps   11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.184     schwarze   12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.8       kristaps   13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   17:  */
1.40      kristaps   18: #include "config.h"
1.140     schwarze   19:
                     20: #include <sys/types.h>
1.40      kristaps   21:
1.1       kristaps   22: #include <assert.h>
                     23: #include <ctype.h>
                     24: #include <stdlib.h>
                     25: #include <stdio.h>
                     26: #include <string.h>
1.38      kristaps   27: #include <time.h>
1.1       kristaps   28:
1.184     schwarze   29: #include "mandoc.h"
                     30: #include "roff.h"
1.106     kristaps   31: #include "mdoc.h"
1.184     schwarze   32: #include "libmandoc.h"
1.190     schwarze   33: #include "roff_int.h"
1.1       kristaps   34: #include "libmdoc.h"
                     35:
1.151     schwarze   36: static void            blk_full(MACRO_PROT_ARGS);
                     37: static void            blk_exp_close(MACRO_PROT_ARGS);
                     38: static void            blk_part_exp(MACRO_PROT_ARGS);
                     39: static void            blk_part_imp(MACRO_PROT_ARGS);
                     40: static void            ctx_synopsis(MACRO_PROT_ARGS);
                     41: static void            in_line_eoln(MACRO_PROT_ARGS);
                     42: static void            in_line_argn(MACRO_PROT_ARGS);
                     43: static void            in_line(MACRO_PROT_ARGS);
                     44: static void            phrase_ta(MACRO_PROT_ARGS);
1.53      kristaps   45:
1.189     schwarze   46: static void            append_delims(struct roff_man *, int, int *, char *);
                     47: static void            dword(struct roff_man *, int, int, const char *,
1.187     schwarze   48:                                enum mdelim, int);
1.189     schwarze   49: static int             find_pending(struct roff_man *, int, int, int,
1.187     schwarze   50:                                struct roff_node *);
1.189     schwarze   51: static int             lookup(struct roff_man *, int, int, int, const char *);
1.153     schwarze   52: static int             macro_or_word(MACRO_PROT_ARGS, int);
1.189     schwarze   53: static int             parse_rest(struct roff_man *, int, int, int *, char *);
1.185     schwarze   54: static int             rew_alt(int);
1.189     schwarze   55: static void            rew_elem(struct roff_man *, int);
                     56: static void            rew_last(struct roff_man *, const struct roff_node *);
                     57: static void            rew_pending(struct roff_man *,
                     58:                                const struct roff_node *);
1.1       kristaps   59:
                     60: const  struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123     schwarze   61:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1       kristaps   62:        { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
                     63:        { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
                     64:        { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123     schwarze   65:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
                     66:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
                     67:        { in_line_eoln, 0 }, /* Pp */
                     68:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
                     69:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1       kristaps   70:        { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123     schwarze   71:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1       kristaps   72:        { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123     schwarze   73:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
                     74:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
                     75:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
                     76:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1       kristaps   77:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129     schwarze   78:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1       kristaps   79:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123     schwarze   80:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
                     81:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
                     82:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1       kristaps   83:        { in_line_eoln, 0 }, /* Ex */
1.123     schwarze   84:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
                     85:        { in_line_eoln, 0 }, /* Fd */
1.1       kristaps   86:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123     schwarze   87:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
                     88:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128     schwarze   89:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18      kristaps   90:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123     schwarze   91:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
                     92:        { blk_full, MDOC_JOIN }, /* Nd */
                     93:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1       kristaps   94:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132     schwarze   95:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1       kristaps   96:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
                     97:        { in_line_eoln, 0 }, /* Rv */
1.123     schwarze   98:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1       kristaps   99:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123     schwarze  100:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42      kristaps  101:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123     schwarze  102:        { in_line_eoln, MDOC_JOIN }, /* %A */
                    103:        { in_line_eoln, MDOC_JOIN }, /* %B */
                    104:        { in_line_eoln, MDOC_JOIN }, /* %D */
                    105:        { in_line_eoln, MDOC_JOIN }, /* %I */
                    106:        { in_line_eoln, MDOC_JOIN }, /* %J */
1.1       kristaps  107:        { in_line_eoln, 0 }, /* %N */
1.123     schwarze  108:        { in_line_eoln, MDOC_JOIN }, /* %O */
1.1       kristaps  109:        { in_line_eoln, 0 }, /* %P */
1.123     schwarze  110:        { in_line_eoln, MDOC_JOIN }, /* %R */
                    111:        { in_line_eoln, MDOC_JOIN }, /* %T */
1.1       kristaps  112:        { in_line_eoln, 0 }, /* %V */
1.123     schwarze  113:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    114:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
                    115:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    116:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
                    117:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1       kristaps  118:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123     schwarze  119:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    120:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
                    121:        { blk_full, MDOC_EXPLICIT }, /* Bf */
                    122:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    123:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
                    124:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1       kristaps  125:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
                    126:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
                    127:        { in_line_eoln, 0 }, /* Db */
1.123     schwarze  128:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    129:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
                    130:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    131:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
                    132:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
                    133:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
                    134:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
                    135:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1       kristaps  136:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
                    137:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11      kristaps  138:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144     schwarze  139:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123     schwarze  140:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
                    141:                        MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1       kristaps  142:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
                    143:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123     schwarze  144:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    145:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52      kristaps  146:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123     schwarze  147:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    148:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
                    149:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
                    150:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    151:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
                    152:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
                    153:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    154:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
                    155:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
                    156:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1       kristaps  157:        { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123     schwarze  158:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    159:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
                    160:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    161:                        MDOC_EXPLICIT | MDOC_JOIN }, /* So */
                    162:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147     schwarze  163:        { in_line_argn, 0 }, /* Sm */
1.123     schwarze  164:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
                    165:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1       kristaps  166:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123     schwarze  167:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1       kristaps  168:        { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
                    169:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123     schwarze  170:        { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
                    171:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    172:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
                    173:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    174:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
                    175:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    176:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1       kristaps  177:        { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123     schwarze  178:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1       kristaps  179:        { in_line_eoln, 0 }, /* Bt */
                    180:        { in_line_eoln, 0 }, /* Hf */
1.132     schwarze  181:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1       kristaps  182:        { in_line_eoln, 0 }, /* Ud */
1.69      kristaps  183:        { in_line, 0 }, /* Lb */
1.123     schwarze  184:        { in_line_eoln, 0 }, /* Lp */
                    185:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
                    186:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
                    187:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
                    188:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    189:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
                    190:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    191:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
                    192:        { in_line_eoln, MDOC_JOIN }, /* %C */
1.132     schwarze  193:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
                    194:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1       kristaps  195:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123     schwarze  196:        { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20      kristaps  197:        { in_line_eoln, 0 }, /* br */
                    198:        { in_line_eoln, 0 }, /* sp */
1.37      kristaps  199:        { in_line_eoln, 0 }, /* %U */
1.123     schwarze  200:        { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143     schwarze  201:        { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1       kristaps  202: };
                    203:
                    204: const  struct mdoc_macro * const mdoc_macros = __mdoc_macros;
                    205:
                    206:
                    207: /*
                    208:  * This is called at the end of parsing.  It must traverse up the tree,
                    209:  * closing out open [implicit] scopes.  Obviously, open explicit scopes
                    210:  * are errors.
                    211:  */
1.151     schwarze  212: void
1.195     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:
1.151     schwarze  219:        n = mdoc->last->flags & MDOC_VALID ?
1.131     schwarze  220:            mdoc->last->parent : mdoc->last;
1.1       kristaps  221:
1.94      schwarze  222:        for ( ; n; n = n->parent)
1.184     schwarze  223:                if (n->type == ROFFT_BLOCK &&
1.151     schwarze  224:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137     schwarze  225:                        mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
                    226:                            n->line, n->pos, mdoc_macronames[n->tok]);
1.1       kristaps  227:
1.32      kristaps  228:        /* Rewind to the first. */
                    229:
1.149     schwarze  230:        rew_last(mdoc, mdoc->first);
1.1       kristaps  231: }
                    232:
1.32      kristaps  233: /*
1.153     schwarze  234:  * Look up the macro at *p called by "from",
1.191     schwarze  235:  * or as a line macro if from == TOKEN_NONE.
1.32      kristaps  236:  */
1.185     schwarze  237: static int
1.189     schwarze  238: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.28      kristaps  239: {
1.185     schwarze  240:        int      res;
1.1       kristaps  241:
1.191     schwarze  242:        if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.153     schwarze  243:                res = mdoc_hash_find(p);
1.191     schwarze  244:                if (res != TOKEN_NONE) {
1.155     schwarze  245:                        if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.202   ! schwarze  246:                                return res;
1.155     schwarze  247:                        if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
                    248:                                mandoc_msg(MANDOCERR_MACRO_CALL,
                    249:                                    mdoc->parse, line, ppos, p);
                    250:                }
1.153     schwarze  251:        }
1.202   ! schwarze  252:        return TOKEN_NONE;
1.1       kristaps  253: }
                    254:
1.166     schwarze  255: /*
                    256:  * Rewind up to and including a specific node.
                    257:  */
1.149     schwarze  258: static void
1.189     schwarze  259: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1       kristaps  260: {
1.199     schwarze  261:        struct roff_node        *np;
1.1       kristaps  262:
1.186     schwarze  263:        if (to->flags & MDOC_VALID)
                    264:                return;
                    265:
1.1       kristaps  266:        while (mdoc->last != to) {
1.100     kristaps  267:                /*
                    268:                 * Save the parent here, because we may delete the
1.119     schwarze  269:                 * mdoc->last node in the post-validation phase and reset
                    270:                 * it to mdoc->last->parent, causing a step in the closing
1.100     kristaps  271:                 * out to be lost.
                    272:                 */
                    273:                np = mdoc->last->parent;
1.149     schwarze  274:                mdoc_valid_post(mdoc);
1.100     kristaps  275:                mdoc->last = np;
1.1       kristaps  276:                assert(mdoc->last);
                    277:        }
1.200     schwarze  278:        mdoc->next = ROFF_NEXT_SIBLING;
1.149     schwarze  279:        mdoc_valid_post(mdoc);
1.1       kristaps  280: }
                    281:
1.32      kristaps  282: /*
1.166     schwarze  283:  * Rewind up to a specific block, including all blocks that broke it.
                    284:  */
                    285: static void
1.189     schwarze  286: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.166     schwarze  287: {
                    288:
1.183     schwarze  289:        for (;;) {
                    290:                rew_last(mdoc, n);
                    291:
1.194     schwarze  292:                if (mdoc->last == n) {
                    293:                        switch (n->type) {
                    294:                        case ROFFT_HEAD:
                    295:                                roff_body_alloc(mdoc, n->line, n->pos,
                    296:                                    n->tok);
                    297:                                return;
                    298:                        case ROFFT_BLOCK:
                    299:                                break;
                    300:                        default:
                    301:                                return;
                    302:                        }
                    303:                        if ( ! (n->flags & MDOC_BROKEN))
                    304:                                return;
                    305:                } else
                    306:                        n = mdoc->last;
1.166     schwarze  307:
1.183     schwarze  308:                for (;;) {
                    309:                        if ((n = n->parent) == NULL)
                    310:                                return;
                    311:
1.184     schwarze  312:                        if (n->type == ROFFT_BLOCK ||
                    313:                            n->type == ROFFT_HEAD) {
1.183     schwarze  314:                                if (n->flags & MDOC_ENDED)
                    315:                                        break;
                    316:                                else
                    317:                                        return;
                    318:                        }
                    319:                }
1.166     schwarze  320:        }
                    321: }
                    322:
                    323: /*
1.84      schwarze  324:  * For a block closing macro, return the corresponding opening one.
                    325:  * Otherwise, return the macro itself.
1.32      kristaps  326:  */
1.185     schwarze  327: static int
                    328: rew_alt(int tok)
1.1       kristaps  329: {
                    330:        switch (tok) {
1.131     schwarze  331:        case MDOC_Ac:
1.202   ! schwarze  332:                return MDOC_Ao;
1.131     schwarze  333:        case MDOC_Bc:
1.202   ! schwarze  334:                return MDOC_Bo;
1.131     schwarze  335:        case MDOC_Brc:
1.202   ! schwarze  336:                return MDOC_Bro;
1.131     schwarze  337:        case MDOC_Dc:
1.202   ! schwarze  338:                return MDOC_Do;
1.131     schwarze  339:        case MDOC_Ec:
1.202   ! schwarze  340:                return MDOC_Eo;
1.131     schwarze  341:        case MDOC_Ed:
1.202   ! schwarze  342:                return MDOC_Bd;
1.131     schwarze  343:        case MDOC_Ef:
1.202   ! schwarze  344:                return MDOC_Bf;
1.131     schwarze  345:        case MDOC_Ek:
1.202   ! schwarze  346:                return MDOC_Bk;
1.131     schwarze  347:        case MDOC_El:
1.202   ! schwarze  348:                return MDOC_Bl;
1.131     schwarze  349:        case MDOC_Fc:
1.202   ! schwarze  350:                return MDOC_Fo;
1.131     schwarze  351:        case MDOC_Oc:
1.202   ! schwarze  352:                return MDOC_Oo;
1.131     schwarze  353:        case MDOC_Pc:
1.202   ! schwarze  354:                return MDOC_Po;
1.131     schwarze  355:        case MDOC_Qc:
1.202   ! schwarze  356:                return MDOC_Qo;
1.131     schwarze  357:        case MDOC_Re:
1.202   ! schwarze  358:                return MDOC_Rs;
1.131     schwarze  359:        case MDOC_Sc:
1.202   ! schwarze  360:                return MDOC_So;
1.131     schwarze  361:        case MDOC_Xc:
1.202   ! schwarze  362:                return MDOC_Xo;
1.1       kristaps  363:        default:
1.202   ! schwarze  364:                return tok;
1.1       kristaps  365:        }
                    366: }
                    367:
1.149     schwarze  368: static void
1.189     schwarze  369: rew_elem(struct roff_man *mdoc, int tok)
1.1       kristaps  370: {
1.185     schwarze  371:        struct roff_node *n;
1.1       kristaps  372:
                    373:        n = mdoc->last;
1.184     schwarze  374:        if (n->type != ROFFT_ELEM)
1.1       kristaps  375:                n = n->parent;
1.184     schwarze  376:        assert(n->type == ROFFT_ELEM);
1.1       kristaps  377:        assert(tok == n->tok);
1.149     schwarze  378:        rew_last(mdoc, n);
1.1       kristaps  379: }
                    380:
1.83      schwarze  381: /*
1.187     schwarze  382:  * If there is an open sub-block of the target requiring
                    383:  * explicit close-out, postpone closing out the target until
                    384:  * the rew_pending() call closing out the sub-block.
                    385:  */
                    386: static int
1.189     schwarze  387: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.187     schwarze  388:        struct roff_node *target)
                    389: {
                    390:        struct roff_node        *n;
                    391:        int                      irc;
                    392:
                    393:        irc = 0;
                    394:        for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
                    395:                if (n->flags & MDOC_ENDED) {
                    396:                        if ( ! (n->flags & MDOC_VALID))
                    397:                                n->flags |= MDOC_BROKEN;
                    398:                        continue;
                    399:                }
                    400:                if (n->type == ROFFT_BLOCK &&
                    401:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    402:                        irc = 1;
                    403:                        n->flags = MDOC_BROKEN;
                    404:                        if (target->type == ROFFT_HEAD)
                    405:                                target->flags = MDOC_ENDED;
                    406:                        else if ( ! (target->flags & MDOC_ENDED)) {
                    407:                                mandoc_vmsg(MANDOCERR_BLK_NEST,
                    408:                                    mdoc->parse, line, ppos,
                    409:                                    "%s breaks %s", mdoc_macronames[tok],
                    410:                                    mdoc_macronames[n->tok]);
                    411:                                mdoc_endbody_alloc(mdoc, line, ppos,
                    412:                                    tok, target, ENDBODY_NOSPACE);
                    413:                        }
                    414:                }
                    415:        }
1.202   ! schwarze  416:        return irc;
1.187     schwarze  417: }
                    418:
                    419: /*
1.105     kristaps  420:  * Allocate a word and check whether it's punctuation or not.
                    421:  * Punctuation consists of those tokens found in mdoc_isdelim().
                    422:  */
1.150     schwarze  423: static void
1.189     schwarze  424: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123     schwarze  425:                enum mdelim d, int may_append)
1.105     kristaps  426: {
1.131     schwarze  427:
1.150     schwarze  428:        if (d == DELIM_MAX)
1.105     kristaps  429:                d = mdoc_isdelim(p);
                    430:
1.123     schwarze  431:        if (may_append &&
1.150     schwarze  432:            ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184     schwarze  433:            d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150     schwarze  434:            mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.192     schwarze  435:                roff_word_append(mdoc, p);
1.150     schwarze  436:                return;
1.123     schwarze  437:        }
                    438:
1.192     schwarze  439:        roff_word_alloc(mdoc, line, col, p);
1.105     kristaps  440:
1.108     schwarze  441:        /*
1.144     schwarze  442:         * If the word consists of a bare delimiter,
                    443:         * flag the new node accordingly,
                    444:         * unless doing so was vetoed by the invoking macro.
                    445:         * Always clear the veto, it is only valid for one word.
1.108     schwarze  446:         */
                    447:
1.144     schwarze  448:        if (d == DELIM_OPEN)
                    449:                mdoc->last->flags |= MDOC_DELIMO;
                    450:        else if (d == DELIM_CLOSE &&
                    451:            ! (mdoc->flags & MDOC_NODELIMC) &&
1.131     schwarze  452:            mdoc->last->parent->tok != MDOC_Fd)
1.119     schwarze  453:                mdoc->last->flags |= MDOC_DELIMC;
1.144     schwarze  454:        mdoc->flags &= ~MDOC_NODELIMC;
1.105     kristaps  455: }
1.1       kristaps  456:
1.150     schwarze  457: static void
1.189     schwarze  458: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1       kristaps  459: {
1.153     schwarze  460:        char            *p;
1.66      kristaps  461:        int              la;
1.1       kristaps  462:
1.150     schwarze  463:        if (buf[*pos] == '\0')
                    464:                return;
1.1       kristaps  465:
                    466:        for (;;) {
1.66      kristaps  467:                la = *pos;
1.191     schwarze  468:                if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
                    469:                    ARGS_EOLN)
1.1       kristaps  470:                        break;
1.123     schwarze  471:                dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66      kristaps  472:
                    473:                /*
                    474:                 * If we encounter end-of-sentence symbols, then trigger
                    475:                 * the double-space.
                    476:                 *
1.109     kristaps  477:                 * XXX: it's easy to allow this to propagate outward to
1.66      kristaps  478:                 * the last symbol, such that `. )' will cause the
                    479:                 * correct double-spacing.  However, (1) groff isn't
                    480:                 * smart enough to do this and (2) it would require
                    481:                 * knowing which symbols break this behaviour, for
1.109     kristaps  482:                 * example, `.  ;' shouldn't propagate the double-space.
1.66      kristaps  483:                 */
1.150     schwarze  484:
1.127     schwarze  485:                if (mandoc_eos(p, strlen(p)))
1.119     schwarze  486:                        mdoc->last->flags |= MDOC_EOS;
1.1       kristaps  487:        }
                    488: }
                    489:
                    490: /*
1.153     schwarze  491:  * Parse one word.
                    492:  * If it is a macro, call it and return 1.
                    493:  * Otherwise, allocate it and return 0.
                    494:  */
                    495: static int
                    496: macro_or_word(MACRO_PROT_ARGS, int parsed)
                    497: {
                    498:        char            *p;
1.185     schwarze  499:        int              ntok;
1.153     schwarze  500:
                    501:        p = buf + ppos;
1.191     schwarze  502:        ntok = TOKEN_NONE;
1.157     schwarze  503:        if (*p == '"')
1.153     schwarze  504:                p++;
1.157     schwarze  505:        else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155     schwarze  506:                ntok = lookup(mdoc, tok, line, ppos, p);
1.153     schwarze  507:
1.191     schwarze  508:        if (ntok == TOKEN_NONE) {
                    509:                dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.153     schwarze  510:                    mdoc_macros[tok].flags & MDOC_JOIN);
1.202   ! schwarze  511:                return 0;
1.153     schwarze  512:        } else {
                    513:                if (mdoc_macros[tok].fp == in_line_eoln)
                    514:                        rew_elem(mdoc, tok);
                    515:                mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.191     schwarze  516:                if (tok == TOKEN_NONE)
1.153     schwarze  517:                        append_delims(mdoc, line, pos, buf);
1.202   ! schwarze  518:                return 1;
1.153     schwarze  519:        }
                    520: }
                    521:
                    522: /*
1.131     schwarze  523:  * Close out block partial/full explicit.
1.1       kristaps  524:  */
1.151     schwarze  525: static void
1.1       kristaps  526: blk_exp_close(MACRO_PROT_ARGS)
                    527: {
1.185     schwarze  528:        struct roff_node *body;         /* Our own body. */
                    529:        struct roff_node *endbody;      /* Our own end marker. */
                    530:        struct roff_node *itblk;        /* An It block starting later. */
                    531:        struct roff_node *later;        /* A sub-block starting later. */
                    532:        struct roff_node *n;            /* Search back to our block. */
1.188     schwarze  533:        struct roff_node *target;       /* For find_pending(). */
1.83      schwarze  534:
1.188     schwarze  535:        int              j, lastarg, maxargs, nl, pending;
1.55      kristaps  536:        enum margserr    ac;
1.185     schwarze  537:        int              atok, ntok;
1.1       kristaps  538:        char            *p;
                    539:
1.119     schwarze  540:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  541:
1.1       kristaps  542:        switch (tok) {
1.131     schwarze  543:        case MDOC_Ec:
1.1       kristaps  544:                maxargs = 1;
                    545:                break;
1.131     schwarze  546:        case MDOC_Ek:
1.125     schwarze  547:                mdoc->flags &= ~MDOC_KEEP;
1.151     schwarze  548:                /* FALLTHROUGH */
1.1       kristaps  549:        default:
                    550:                maxargs = 0;
                    551:                break;
                    552:        }
                    553:
1.83      schwarze  554:        /*
                    555:         * Search backwards for beginnings of blocks,
                    556:         * both of our own and of pending sub-blocks.
                    557:         */
1.151     schwarze  558:
1.83      schwarze  559:        atok = rew_alt(tok);
1.171     schwarze  560:        body = endbody = itblk = later = NULL;
1.119     schwarze  561:        for (n = mdoc->last; n; n = n->parent) {
1.183     schwarze  562:                if (n->flags & MDOC_ENDED) {
                    563:                        if ( ! (n->flags & MDOC_VALID))
                    564:                                n->flags |= MDOC_BROKEN;
1.83      schwarze  565:                        continue;
1.183     schwarze  566:                }
1.83      schwarze  567:
                    568:                /* Remember the start of our own body. */
1.151     schwarze  569:
1.184     schwarze  570:                if (n->type == ROFFT_BODY && atok == n->tok) {
1.175     schwarze  571:                        if (n->end == ENDBODY_NOT)
1.83      schwarze  572:                                body = n;
                    573:                        continue;
                    574:                }
                    575:
1.184     schwarze  576:                if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83      schwarze  577:                        continue;
1.160     schwarze  578:
                    579:                if (n->tok == MDOC_It) {
1.171     schwarze  580:                        itblk = n;
1.160     schwarze  581:                        continue;
                    582:                }
                    583:
1.83      schwarze  584:                if (atok == n->tok) {
                    585:                        assert(body);
                    586:
                    587:                        /*
                    588:                         * Found the start of our own block.
                    589:                         * When there is no pending sub block,
                    590:                         * just proceed to closing out.
                    591:                         */
1.151     schwarze  592:
1.160     schwarze  593:                        if (later == NULL ||
1.171     schwarze  594:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  595:                                break;
                    596:
1.131     schwarze  597:                        /*
1.167     schwarze  598:                         * When there is a pending sub block, postpone
                    599:                         * closing out the current block until the
                    600:                         * rew_pending() closing out the sub-block.
1.83      schwarze  601:                         * Mark the place where the formatting - but not
                    602:                         * the scope - of the current block ends.
                    603:                         */
1.151     schwarze  604:
1.183     schwarze  605:                        mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
                    606:                            line, ppos, "%s breaks %s",
                    607:                            mdoc_macronames[atok],
                    608:                            mdoc_macronames[later->tok]);
                    609:
1.166     schwarze  610:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150     schwarze  611:                            atok, body, ENDBODY_SPACE);
1.151     schwarze  612:
1.183     schwarze  613:                        if (tok == MDOC_El)
                    614:                                itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
                    615:
1.151     schwarze  616:                        /*
                    617:                         * If a block closing macro taking arguments
                    618:                         * breaks another block, put the arguments
1.166     schwarze  619:                         * into the end marker.
1.151     schwarze  620:                         */
                    621:
1.166     schwarze  622:                        if (maxargs)
1.189     schwarze  623:                                mdoc->next = ROFF_NEXT_CHILD;
1.83      schwarze  624:                        break;
1.182     schwarze  625:                }
                    626:
                    627:                /* Explicit blocks close out description lines. */
                    628:
                    629:                if (n->tok == MDOC_Nd) {
                    630:                        rew_last(mdoc, n);
                    631:                        continue;
1.83      schwarze  632:                }
                    633:
1.183     schwarze  634:                /* Breaking an open sub block. */
1.151     schwarze  635:
1.183     schwarze  636:                n->flags |= MDOC_BROKEN;
                    637:                if (later == NULL)
1.83      schwarze  638:                        later = n;
                    639:        }
1.166     schwarze  640:
                    641:        if (body == NULL) {
                    642:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
                    643:                    line, ppos, mdoc_macronames[tok]);
1.196     schwarze  644:                if (later != NULL)
                    645:                        later->flags &= ~MDOC_BROKEN;
1.166     schwarze  646:                if (maxargs && endbody == NULL) {
                    647:                        /*
                    648:                         * Stray .Ec without previous .Eo:
                    649:                         * Break the output line, keep the arguments.
                    650:                         */
1.193     schwarze  651:                        roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.166     schwarze  652:                        rew_elem(mdoc, MDOC_br);
                    653:                }
                    654:        } else if (endbody == NULL) {
                    655:                rew_last(mdoc, body);
                    656:                if (maxargs)
                    657:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    658:        }
1.83      schwarze  659:
1.150     schwarze  660:        if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
                    661:                if (buf[*pos] != '\0')
1.136     schwarze  662:                        mandoc_vmsg(MANDOCERR_ARG_SKIP,
                    663:                            mdoc->parse, line, ppos,
                    664:                            "%s %s", mdoc_macronames[tok],
                    665:                            buf + *pos);
1.171     schwarze  666:                if (endbody == NULL && n != NULL)
1.167     schwarze  667:                        rew_pending(mdoc, n);
1.151     schwarze  668:                return;
1.1       kristaps  669:        }
                    670:
1.166     schwarze  671:        if (endbody != NULL)
                    672:                n = endbody;
1.197     schwarze  673:
                    674:        ntok = TOKEN_NONE;
1.148     schwarze  675:        for (j = 0; ; j++) {
1.1       kristaps  676:                lastarg = *pos;
                    677:
1.186     schwarze  678:                if (j == maxargs && n != NULL)
                    679:                        rew_last(mdoc, n);
1.1       kristaps  680:
1.119     schwarze  681:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  682:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  683:                        break;
                    684:
1.191     schwarze  685:                ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.155     schwarze  686:                    lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  687:
1.191     schwarze  688:                if (ntok == TOKEN_NONE) {
1.150     schwarze  689:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
                    690:                            MDOC_JOIN & mdoc_macros[tok].flags);
1.54      kristaps  691:                        continue;
                    692:                }
1.1       kristaps  693:
1.186     schwarze  694:                if (n != NULL)
                    695:                        rew_last(mdoc, n);
1.122     schwarze  696:                mdoc->flags &= ~MDOC_NEWLINE;
1.151     schwarze  697:                mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  698:                break;
1.1       kristaps  699:        }
                    700:
1.188     schwarze  701:        if (n != NULL) {
1.197     schwarze  702:                if (ntok != TOKEN_NONE && n->flags & MDOC_BROKEN) {
1.188     schwarze  703:                        target = n;
                    704:                        do
                    705:                                target = target->parent;
                    706:                        while ( ! (target->flags & MDOC_ENDED));
                    707:                        pending = find_pending(mdoc, ntok, line, ppos,
                    708:                            target);
                    709:                } else
                    710:                        pending = 0;
                    711:                if ( ! pending)
                    712:                        rew_pending(mdoc, n);
                    713:        }
1.150     schwarze  714:        if (nl)
                    715:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  716: }
                    717:
1.151     schwarze  718: static void
1.1       kristaps  719: in_line(MACRO_PROT_ARGS)
                    720: {
1.144     schwarze  721:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.185     schwarze  722:        int              ntok;
1.55      kristaps  723:        enum margserr    ac;
1.67      schwarze  724:        enum mdelim      d;
1.53      kristaps  725:        struct mdoc_arg *arg;
                    726:        char            *p;
1.1       kristaps  727:
1.119     schwarze  728:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  729:
1.4       kristaps  730:        /*
                    731:         * Whether we allow ignored elements (those without content,
                    732:         * usually because of reserved words) to squeak by.
                    733:         */
1.45      kristaps  734:
1.4       kristaps  735:        switch (tok) {
1.131     schwarze  736:        case MDOC_An:
1.26      kristaps  737:                /* FALLTHROUGH */
1.131     schwarze  738:        case MDOC_Ar:
1.4       kristaps  739:                /* FALLTHROUGH */
1.131     schwarze  740:        case MDOC_Fl:
1.4       kristaps  741:                /* FALLTHROUGH */
1.131     schwarze  742:        case MDOC_Mt:
1.12      kristaps  743:                /* FALLTHROUGH */
1.131     schwarze  744:        case MDOC_Nm:
1.26      kristaps  745:                /* FALLTHROUGH */
1.131     schwarze  746:        case MDOC_Pa:
1.4       kristaps  747:                nc = 1;
                    748:                break;
                    749:        default:
                    750:                nc = 0;
                    751:                break;
                    752:        }
                    753:
1.152     schwarze  754:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  755:
1.144     schwarze  756:        d = DELIM_NONE;
                    757:        firstarg = 1;
1.142     schwarze  758:        mayopen = 1;
1.70      kristaps  759:        for (cnt = scope = 0;; ) {
1.1       kristaps  760:                la = *pos;
1.119     schwarze  761:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  762:
1.144     schwarze  763:                /*
                    764:                 * At the end of a macro line,
                    765:                 * opening delimiters do not suppress spacing.
                    766:                 */
                    767:
                    768:                if (ac == ARGS_EOLN) {
                    769:                        if (d == DELIM_OPEN)
                    770:                                mdoc->last->flags &= ~MDOC_DELIMO;
1.1       kristaps  771:                        break;
1.144     schwarze  772:                }
                    773:
                    774:                /*
                    775:                 * The rest of the macro line is only punctuation,
                    776:                 * to be handled by append_delims().
                    777:                 * If there were no other arguments,
                    778:                 * do not allow the first one to suppress spacing,
                    779:                 * even if it turns out to be a closing one.
                    780:                 */
                    781:
                    782:                if (ac == ARGS_PUNCT) {
1.176     schwarze  783:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  784:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  785:                        break;
1.144     schwarze  786:                }
1.1       kristaps  787:
1.145     schwarze  788:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.191     schwarze  789:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1       kristaps  790:
1.131     schwarze  791:                /*
1.4       kristaps  792:                 * In this case, we've located a submacro and must
                    793:                 * execute it.  Close out scope, if open.  If no
                    794:                 * elements have been generated, either create one (nc)
                    795:                 * or raise a warning.
                    796:                 */
1.1       kristaps  797:
1.191     schwarze  798:                if (ntok != TOKEN_NONE) {
1.149     schwarze  799:                        if (scope)
                    800:                                rew_elem(mdoc, tok);
1.150     schwarze  801:                        if (nc && ! cnt) {
                    802:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  803:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  804:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  805:                                mdoc_argv_free(arg);
1.135     schwarze  806:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    807:                                    mdoc->parse, line, ppos,
                    808:                                    mdoc_macronames[tok]);
1.7       kristaps  809:                        }
1.151     schwarze  810:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150     schwarze  811:                        if (nl)
                    812:                                append_delims(mdoc, line, pos, buf);
1.151     schwarze  813:                        return;
1.131     schwarze  814:                }
1.1       kristaps  815:
1.131     schwarze  816:                /*
1.4       kristaps  817:                 * Non-quote-enclosed punctuation.  Set up our scope, if
                    818:                 * a word; rewind the scope, if a delimiter; then append
1.131     schwarze  819:                 * the word.
1.4       kristaps  820:                 */
1.1       kristaps  821:
1.150     schwarze  822:                d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3       kristaps  823:
1.70      kristaps  824:                if (DELIM_NONE != d) {
                    825:                        /*
                    826:                         * If we encounter closing punctuation, no word
1.144     schwarze  827:                         * has been emitted, no scope is open, and we're
1.70      kristaps  828:                         * allowed to have an empty element, then start
1.142     schwarze  829:                         * a new scope.
1.70      kristaps  830:                         */
1.142     schwarze  831:                        if ((d == DELIM_CLOSE ||
                    832:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  833:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  834:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  835:                                scope = 1;
1.142     schwarze  836:                                cnt++;
1.150     schwarze  837:                                if (tok == MDOC_Nm)
1.142     schwarze  838:                                        mayopen = 0;
1.70      kristaps  839:                        }
                    840:                        /*
                    841:                         * Close out our scope, if one is open, before
                    842:                         * any punctuation.
                    843:                         */
1.149     schwarze  844:                        if (scope)
                    845:                                rew_elem(mdoc, tok);
1.70      kristaps  846:                        scope = 0;
1.145     schwarze  847:                        if (tok == MDOC_Fn)
                    848:                                mayopen = 0;
1.142     schwarze  849:                } else if (mayopen && !scope) {
1.150     schwarze  850:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  851:                        scope = 1;
1.142     schwarze  852:                        cnt++;
1.1       kristaps  853:                }
1.105     kristaps  854:
1.150     schwarze  855:                dword(mdoc, line, la, p, d,
                    856:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.39      kristaps  857:
                    858:                /*
1.144     schwarze  859:                 * If the first argument is a closing delimiter,
                    860:                 * do not suppress spacing before it.
                    861:                 */
                    862:
                    863:                if (firstarg && d == DELIM_CLOSE && !nc)
                    864:                        mdoc->last->flags &= ~MDOC_DELIMC;
                    865:                firstarg = 0;
                    866:
                    867:                /*
1.39      kristaps  868:                 * `Fl' macros have their scope re-opened with each new
                    869:                 * word so that the `-' can be added to each one without
                    870:                 * having to parse out spaces.
                    871:                 */
1.150     schwarze  872:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  873:                        rew_elem(mdoc, tok);
1.70      kristaps  874:                        scope = 0;
1.39      kristaps  875:                }
1.1       kristaps  876:        }
                    877:
1.149     schwarze  878:        if (scope)
                    879:                rew_elem(mdoc, tok);
1.4       kristaps  880:
                    881:        /*
                    882:         * If no elements have been collected and we're allowed to have
                    883:         * empties (nc), open a scope and close it out.  Otherwise,
                    884:         * raise a warning.
                    885:         */
1.45      kristaps  886:
1.150     schwarze  887:        if ( ! cnt) {
                    888:                if (nc) {
                    889:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    890:                        rew_last(mdoc, mdoc->last);
                    891:                } else {
                    892:                        mdoc_argv_free(arg);
                    893:                        mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    894:                            line, ppos, mdoc_macronames[tok]);
                    895:                }
1.7       kristaps  896:        }
1.150     schwarze  897:        if (nl)
                    898:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  899: }
                    900:
1.151     schwarze  901: static void
1.1       kristaps  902: blk_full(MACRO_PROT_ARGS)
                    903: {
1.153     schwarze  904:        int               la, nl, parsed;
1.1       kristaps  905:        struct mdoc_arg  *arg;
1.185     schwarze  906:        struct roff_node *blk; /* Our own or a broken block. */
                    907:        struct roff_node *head; /* Our own head. */
                    908:        struct roff_node *body; /* Our own body. */
                    909:        struct roff_node *n;
1.59      kristaps  910:        enum margserr     ac, lac;
1.1       kristaps  911:        char             *p;
                    912:
1.119     schwarze  913:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  914:
1.177     schwarze  915:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    916:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    917:                    line, ppos, mdoc_macronames[tok]);
                    918:                return;
                    919:        }
                    920:
1.171     schwarze  921:        if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
                    922:
                    923:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    924:
                    925:                blk = NULL;
                    926:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze  927:                        if (n->flags & MDOC_ENDED) {
                    928:                                if ( ! (n->flags & MDOC_VALID))
                    929:                                        n->flags |= MDOC_BROKEN;
                    930:                                continue;
                    931:                        }
1.184     schwarze  932:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  933:                                continue;
1.183     schwarze  934:
1.171     schwarze  935:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    936:                                if (blk != NULL) {
                    937:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    938:                                            mdoc->parse, line, ppos,
                    939:                                            "It breaks %s",
                    940:                                            mdoc_macronames[blk->tok]);
                    941:                                        rew_pending(mdoc, blk);
                    942:                                }
                    943:                                break;
                    944:                        }
                    945:
                    946:                        if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    947:                                switch (tok) {
                    948:                                case MDOC_Sh:
                    949:                                        /* FALLTHROUGH */
                    950:                                case MDOC_Ss:
                    951:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    952:                                            mdoc->parse, line, ppos,
                    953:                                            "%s breaks %s",
                    954:                                            mdoc_macronames[tok],
                    955:                                            mdoc_macronames[n->tok]);
                    956:                                        rew_pending(mdoc, n);
1.180     schwarze  957:                                        n = mdoc->last;
1.171     schwarze  958:                                        continue;
                    959:                                case MDOC_It:
                    960:                                        /* Delay in case it's astray. */
                    961:                                        blk = n;
                    962:                                        continue;
                    963:                                default:
                    964:                                        break;
                    965:                                }
                    966:                                break;
                    967:                        }
                    968:
                    969:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze  970:
1.171     schwarze  971:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                    972:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                    973:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze  974:                                break;
1.171     schwarze  975:
                    976:                        /* Item breaking an explicit block. */
                    977:
                    978:                        if (blk != NULL) {
                    979:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    980:                                    mdoc->parse, line, ppos,
                    981:                                    "It breaks %s",
                    982:                                    mdoc_macronames[blk->tok]);
                    983:                                rew_pending(mdoc, blk);
1.172     schwarze  984:                                blk = NULL;
1.171     schwarze  985:                        }
                    986:
                    987:                        /* Close out prior implicit scopes. */
                    988:
                    989:                        rew_last(mdoc, n);
                    990:                }
                    991:
                    992:                /* Skip items outside lists. */
                    993:
                    994:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138     schwarze  995:                        mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
                    996:                            line, ppos, "It %s", buf + *pos);
1.193     schwarze  997:                        roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.149     schwarze  998:                        rew_elem(mdoc, MDOC_br);
1.151     schwarze  999:                        return;
1.138     schwarze 1000:                }
1.1       kristaps 1001:        }
                   1002:
1.45      kristaps 1003:        /*
1.109     kristaps 1004:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps 1005:         * macro openings.  Implicit ones first close out prior scope
                   1006:         * (seen above).  Delay opening the head until necessary to
                   1007:         * allow leading punctuation to print.  Special consideration
                   1008:         * for `It -column', which has phrase-part syntax instead of
                   1009:         * regular child nodes.
                   1010:         */
                   1011:
1.152     schwarze 1012:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze 1013:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps 1014:        head = body = NULL;
1.115     schwarze 1015:
                   1016:        /*
                   1017:         * Exception: Heads of `It' macros in `-diag' lists are not
                   1018:         * parsed, even though `It' macros in general are parsed.
                   1019:         */
1.151     schwarze 1020:
1.153     schwarze 1021:        parsed = tok != MDOC_It ||
                   1022:            mdoc->last->parent->tok != MDOC_Bl ||
                   1023:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps 1024:
1.45      kristaps 1025:        /*
                   1026:         * The `Nd' macro has all arguments in its body: it's a hybrid
                   1027:         * of block partial-explicit and full-implicit.  Stupid.
                   1028:         */
1.19      kristaps 1029:
1.150     schwarze 1030:        if (tok == MDOC_Nd) {
1.190     schwarze 1031:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze 1032:                rew_last(mdoc, head);
1.190     schwarze 1033:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze 1034:        }
                   1035:
1.150     schwarze 1036:        if (tok == MDOC_Bk)
1.123     schwarze 1037:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps 1038:
1.150     schwarze 1039:        ac = ARGS_PEND;
                   1040:        for (;;) {
1.45      kristaps 1041:                la = *pos;
1.150     schwarze 1042:                lac = ac;
1.119     schwarze 1043:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1044:                if (ac == ARGS_EOLN) {
                   1045:                        if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75      kristaps 1046:                                break;
                   1047:                        /*
                   1048:                         * This is necessary: if the last token on a
                   1049:                         * line is a `Ta' or tab, then we'll get
                   1050:                         * ARGS_EOLN, so we must be smart enough to
                   1051:                         * reopen our scope if the last parse was a
                   1052:                         * phrase or partial phrase.
                   1053:                         */
1.167     schwarze 1054:                        if (body != NULL)
                   1055:                                rew_last(mdoc, body);
1.190     schwarze 1056:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1057:                        break;
1.75      kristaps 1058:                }
1.174     schwarze 1059:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
                   1060:                        mandoc_vmsg(MANDOCERR_ARG_EXCESS,
                   1061:                            mdoc->parse, line, la, "%s ... %s",
                   1062:                            mdoc_macronames[tok], buf + la);
                   1063:                        break;
                   1064:                }
1.173     schwarze 1065:                if (tok == MDOC_Rs) {
                   1066:                        mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
                   1067:                            line, la, "Rs %s", buf + la);
                   1068:                        break;
                   1069:                }
                   1070:                if (ac == ARGS_PUNCT)
                   1071:                        break;
1.45      kristaps 1072:
1.131     schwarze 1073:                /*
1.73      kristaps 1074:                 * Emit leading punctuation (i.e., punctuation before
1.184     schwarze 1075:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1076:                 */
1.45      kristaps 1077:
1.150     schwarze 1078:                if (head == NULL &&
                   1079:                    ac != ARGS_PEND &&
                   1080:                    ac != ARGS_PHRASE &&
                   1081:                    ac != ARGS_PPHRASE &&
                   1082:                    ac != ARGS_QWORD &&
                   1083:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1084:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1085:                        continue;
                   1086:                }
                   1087:
1.74      kristaps 1088:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1089:
1.150     schwarze 1090:                if (head == NULL)
1.190     schwarze 1091:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1092:
1.150     schwarze 1093:                if (ac == ARGS_PHRASE ||
                   1094:                    ac == ARGS_PEND ||
                   1095:                    ac == ARGS_PPHRASE) {
1.151     schwarze 1096:
1.73      kristaps 1097:                        /*
1.74      kristaps 1098:                         * If we haven't opened a body yet, rewind the
                   1099:                         * head; if we have, rewind that instead.
                   1100:                         */
                   1101:
1.167     schwarze 1102:                        rew_last(mdoc, body == NULL ? head : body);
1.190     schwarze 1103:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1104:
                   1105:                        /*
1.73      kristaps 1106:                         * Process phrases: set whether we're in a
                   1107:                         * partial-phrase (this effects line handling)
                   1108:                         * then call down into the phrase parser.
                   1109:                         */
1.74      kristaps 1110:
1.150     schwarze 1111:                        if (ac == ARGS_PPHRASE)
1.119     schwarze 1112:                                mdoc->flags |= MDOC_PPHRASE;
1.150     schwarze 1113:                        if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119     schwarze 1114:                                mdoc->flags |= MDOC_PPHRASE;
1.191     schwarze 1115:                        parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.119     schwarze 1116:                        mdoc->flags &= ~MDOC_PPHRASE;
1.1       kristaps 1117:                        continue;
                   1118:                }
                   1119:
1.153     schwarze 1120:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1121:                        break;
1.45      kristaps 1122:        }
1.1       kristaps 1123:
1.165     schwarze 1124:        if (blk->flags & MDOC_VALID)
                   1125:                return;
1.150     schwarze 1126:        if (head == NULL)
1.190     schwarze 1127:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1128:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1129:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1130:        if (body != NULL)
1.77      kristaps 1131:                goto out;
1.187     schwarze 1132:        if (find_pending(mdoc, tok, line, ppos, head))
1.183     schwarze 1133:                return;
1.47      kristaps 1134:
1.45      kristaps 1135:        /* Close out scopes to remain in a consistent state. */
                   1136:
1.167     schwarze 1137:        rew_last(mdoc, head);
1.190     schwarze 1138:        body = roff_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1139: out:
1.150     schwarze 1140:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1141:                rew_last(mdoc, body);
                   1142:                rew_last(mdoc, blk);
1.150     schwarze 1143:                mdoc->flags &= ~MDOC_FREECOL;
                   1144:        }
1.1       kristaps 1145: }
                   1146:
1.151     schwarze 1147: static void
1.1       kristaps 1148: blk_part_imp(MACRO_PROT_ARGS)
                   1149: {
1.63      kristaps 1150:        int               la, nl;
1.55      kristaps 1151:        enum margserr     ac;
1.1       kristaps 1152:        char             *p;
1.185     schwarze 1153:        struct roff_node *blk; /* saved block context */
                   1154:        struct roff_node *body; /* saved body context */
                   1155:        struct roff_node *n;
1.1       kristaps 1156:
1.119     schwarze 1157:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1158:
1.43      kristaps 1159:        /*
                   1160:         * A macro that spans to the end of the line.  This is generally
                   1161:         * (but not necessarily) called as the first macro.  The block
                   1162:         * has a head as the immediate child, which is always empty,
                   1163:         * followed by zero or more opening punctuation nodes, then the
                   1164:         * body (which may be empty, depending on the macro), then zero
                   1165:         * or more closing punctuation nodes.
                   1166:         */
1.32      kristaps 1167:
1.150     schwarze 1168:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190     schwarze 1169:        rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1170:
1.43      kristaps 1171:        /*
                   1172:         * Open the body scope "on-demand", that is, after we've
                   1173:         * processed all our the leading delimiters (open parenthesis,
                   1174:         * etc.).
                   1175:         */
1.1       kristaps 1176:
1.43      kristaps 1177:        for (body = NULL; ; ) {
1.32      kristaps 1178:                la = *pos;
1.119     schwarze 1179:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1180:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1181:                        break;
                   1182:
1.150     schwarze 1183:                if (body == NULL && ac != ARGS_QWORD &&
                   1184:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1185:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1186:                        continue;
1.123     schwarze 1187:                }
1.1       kristaps 1188:
1.150     schwarze 1189:                if (body == NULL)
1.190     schwarze 1190:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1191:
1.153     schwarze 1192:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1193:                        break;
1.1       kristaps 1194:        }
1.150     schwarze 1195:        if (body == NULL)
1.190     schwarze 1196:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1197:
1.187     schwarze 1198:        if (find_pending(mdoc, tok, line, ppos, body))
1.183     schwarze 1199:                return;
                   1200:
1.164     schwarze 1201:        rew_last(mdoc, body);
1.150     schwarze 1202:        if (nl)
                   1203:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1204:        rew_pending(mdoc, blk);
1.117     schwarze 1205:
                   1206:        /* Move trailing .Ns out of scope. */
                   1207:
                   1208:        for (n = body->child; n && n->next; n = n->next)
                   1209:                /* Do nothing. */ ;
1.150     schwarze 1210:        if (n && n->tok == MDOC_Ns)
1.119     schwarze 1211:                mdoc_node_relink(mdoc, n);
1.1       kristaps 1212: }
                   1213:
1.151     schwarze 1214: static void
1.1       kristaps 1215: blk_part_exp(MACRO_PROT_ARGS)
                   1216: {
1.60      kristaps 1217:        int               la, nl;
1.55      kristaps 1218:        enum margserr     ac;
1.185     schwarze 1219:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1220:        char             *p;
                   1221:
1.119     schwarze 1222:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1223:
1.43      kristaps 1224:        /*
                   1225:         * The opening of an explicit macro having zero or more leading
                   1226:         * punctuation nodes; a head with optional single element (the
                   1227:         * case of `Eo'); and a body that may be empty.
                   1228:         */
1.32      kristaps 1229:
1.193     schwarze 1230:        roff_block_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1231:        head = NULL;
                   1232:        for (;;) {
1.32      kristaps 1233:                la = *pos;
1.119     schwarze 1234:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1235:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1236:                        break;
1.43      kristaps 1237:
                   1238:                /* Flush out leading punctuation. */
                   1239:
1.150     schwarze 1240:                if (head == NULL && ac != ARGS_QWORD &&
                   1241:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1242:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1243:                        continue;
1.123     schwarze 1244:                }
1.43      kristaps 1245:
1.150     schwarze 1246:                if (head == NULL) {
1.190     schwarze 1247:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1248:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1249:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1250:                        rew_last(mdoc, head);
1.190     schwarze 1251:                        roff_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1252:                        if (tok == MDOC_Eo)
1.43      kristaps 1253:                                continue;
1.1       kristaps 1254:                }
1.43      kristaps 1255:
1.153     schwarze 1256:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1257:                        break;
1.1       kristaps 1258:        }
                   1259:
1.43      kristaps 1260:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1261:
1.163     schwarze 1262:        if (head == NULL) {
1.190     schwarze 1263:                rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
                   1264:                roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1265:        }
1.150     schwarze 1266:        if (nl)
                   1267:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1268: }
                   1269:
1.151     schwarze 1270: static void
1.1       kristaps 1271: in_line_argn(MACRO_PROT_ARGS)
                   1272: {
1.53      kristaps 1273:        struct mdoc_arg *arg;
                   1274:        char            *p;
1.181     schwarze 1275:        enum margserr    ac;
1.185     schwarze 1276:        int              ntok;
1.181     schwarze 1277:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1278:        int              la, maxargs, nl;
1.1       kristaps 1279:
1.156     schwarze 1280:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1281:
1.46      kristaps 1282:        /*
                   1283:         * A line macro that has a fixed number of arguments (maxargs).
                   1284:         * Only open the scope once the first non-leading-punctuation is
                   1285:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1286:         * keep it open until the maximum number of arguments are
                   1287:         * exhausted.
                   1288:         */
1.1       kristaps 1289:
                   1290:        switch (tok) {
1.131     schwarze 1291:        case MDOC_Ap:
1.1       kristaps 1292:                /* FALLTHROUGH */
1.131     schwarze 1293:        case MDOC_Ns:
1.1       kristaps 1294:                /* FALLTHROUGH */
1.131     schwarze 1295:        case MDOC_Ux:
1.1       kristaps 1296:                maxargs = 0;
                   1297:                break;
1.131     schwarze 1298:        case MDOC_Bx:
1.101     kristaps 1299:                /* FALLTHROUGH */
1.132     schwarze 1300:        case MDOC_Es:
                   1301:                /* FALLTHROUGH */
1.131     schwarze 1302:        case MDOC_Xr:
1.42      kristaps 1303:                maxargs = 2;
                   1304:                break;
1.1       kristaps 1305:        default:
                   1306:                maxargs = 1;
                   1307:                break;
                   1308:        }
                   1309:
1.152     schwarze 1310:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1311:
1.181     schwarze 1312:        state = -1;
1.156     schwarze 1313:        p = NULL;
                   1314:        for (;;) {
1.32      kristaps 1315:                la = *pos;
1.119     schwarze 1316:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1317:
                   1318:                if (ac == ARGS_WORD && state == -1 &&
                   1319:                    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
                   1320:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1321:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1322:                        continue;
                   1323:                }
                   1324:
                   1325:                if (state == -1 && tok != MDOC_In &&
                   1326:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1327:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1328:                        state = 0;
                   1329:                }
                   1330:
1.156     schwarze 1331:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1332:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1333:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1334:                                    mdoc->parse, line, ppos, "Pf %s",
                   1335:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1336:                        break;
1.156     schwarze 1337:                }
1.1       kristaps 1338:
1.181     schwarze 1339:                if (state == maxargs) {
1.149     schwarze 1340:                        rew_elem(mdoc, tok);
1.181     schwarze 1341:                        state = -2;
1.46      kristaps 1342:                }
                   1343:
1.181     schwarze 1344:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.191     schwarze 1345:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1346:
1.191     schwarze 1347:                if (ntok != TOKEN_NONE) {
1.181     schwarze 1348:                        if (state >= 0) {
1.149     schwarze 1349:                                rew_elem(mdoc, tok);
1.181     schwarze 1350:                                state = -2;
                   1351:                        }
1.151     schwarze 1352:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1       kristaps 1353:                        break;
                   1354:                }
                   1355:
1.181     schwarze 1356:                if (ac == ARGS_QWORD ||
                   1357:                    mdoc_macros[tok].flags & MDOC_IGNDELIM ||
                   1358:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1359:                        if (state == -1) {
                   1360:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1361:                                state = 1;
                   1362:                        } else if (state >= 0)
                   1363:                                state++;
                   1364:                } else if (state >= 0) {
1.149     schwarze 1365:                        rew_elem(mdoc, tok);
1.181     schwarze 1366:                        state = -2;
1.1       kristaps 1367:                }
1.42      kristaps 1368:
1.150     schwarze 1369:                dword(mdoc, line, la, p, DELIM_MAX,
                   1370:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.1       kristaps 1371:        }
                   1372:
1.181     schwarze 1373:        if (state == -1) {
                   1374:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                   1375:                    line, ppos, mdoc_macronames[tok]);
                   1376:                return;
1.156     schwarze 1377:        }
1.181     schwarze 1378:
                   1379:        if (state == 0 && tok == MDOC_Pf)
                   1380:                append_delims(mdoc, line, pos, buf);
                   1381:        if (state >= 0)
1.149     schwarze 1382:                rew_elem(mdoc, tok);
1.150     schwarze 1383:        if (nl)
                   1384:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1385: }
                   1386:
1.151     schwarze 1387: static void
1.1       kristaps 1388: in_line_eoln(MACRO_PROT_ARGS)
                   1389: {
1.185     schwarze 1390:        struct roff_node        *n;
1.170     schwarze 1391:        struct mdoc_arg         *arg;
1.1       kristaps 1392:
1.170     schwarze 1393:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1394:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1395:                n = mdoc->last;
1.189     schwarze 1396:                if (mdoc->next == ROFF_NEXT_SIBLING)
1.170     schwarze 1397:                        n = n->parent;
                   1398:                if (n->tok == MDOC_Nm)
1.198     schwarze 1399:                        rew_last(mdoc, n->parent);
1.178     schwarze 1400:        }
                   1401:
1.179     schwarze 1402:        if (buf[*pos] == '\0' &&
                   1403:            (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178     schwarze 1404:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179     schwarze 1405:                    line, ppos, mdoc_macronames[tok]);
1.178     schwarze 1406:                return;
1.170     schwarze 1407:        }
1.90      schwarze 1408:
1.152     schwarze 1409:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1410:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1411:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1412:                return;
                   1413:        rew_elem(mdoc, tok);
                   1414: }
                   1415:
                   1416: /*
                   1417:  * The simplest argument parser available: Parse the remaining
                   1418:  * words until the end of the phrase or line and return 0
                   1419:  * or until the next macro, call that macro, and return 1.
                   1420:  */
                   1421: static int
1.189     schwarze 1422: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154     schwarze 1423: {
                   1424:        int              la;
1.1       kristaps 1425:
                   1426:        for (;;) {
                   1427:                la = *pos;
1.153     schwarze 1428:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.202   ! schwarze 1429:                        return 0;
1.153     schwarze 1430:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.202   ! schwarze 1431:                        return 1;
1.1       kristaps 1432:        }
                   1433: }
                   1434:
1.151     schwarze 1435: static void
1.41      kristaps 1436: ctx_synopsis(MACRO_PROT_ARGS)
                   1437: {
1.60      kristaps 1438:
1.151     schwarze 1439:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1440:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1441:        else if (tok == MDOC_Nm)
                   1442:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1443:        else {
                   1444:                assert(tok == MDOC_Vt);
                   1445:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1446:        }
1.1       kristaps 1447: }
                   1448:
1.24      kristaps 1449: /*
                   1450:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1451:  * They're unusual because they're basically free-form text until a
                   1452:  * macro is encountered.
                   1453:  */
1.151     schwarze 1454: static void
1.75      kristaps 1455: phrase_ta(MACRO_PROT_ARGS)
                   1456: {
1.185     schwarze 1457:        struct roff_node *body, *n;
1.75      kristaps 1458:
1.121     schwarze 1459:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1460:
1.167     schwarze 1461:        body = NULL;
                   1462:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze 1463:                if (n->flags & MDOC_ENDED)
1.167     schwarze 1464:                        continue;
1.184     schwarze 1465:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1466:                        body = n;
                   1467:                if (n->tok == MDOC_Bl)
                   1468:                        break;
                   1469:        }
                   1470:
1.151     schwarze 1471:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1472:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1473:                    line, ppos, "Ta");
1.151     schwarze 1474:                return;
1.121     schwarze 1475:        }
1.75      kristaps 1476:
1.121     schwarze 1477:        /* Advance to the next column. */
1.150     schwarze 1478:
1.167     schwarze 1479:        rew_last(mdoc, body);
1.190     schwarze 1480:        roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191     schwarze 1481:        parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75      kristaps 1482: }

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