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Annotation of mandoc/mdoc_macro.c, Revision 1.222

1.222   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.221 2017/05/04 17:48:29 schwarze Exp $ */
1.1       kristaps    2: /*
1.116     schwarze    3:  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.216     schwarze    4:  * Copyright (c) 2010, 2012-2017 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
1.8       kristaps    7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    9:  *
1.184     schwarze   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.8       kristaps   11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.184     schwarze   12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.8       kristaps   13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   17:  */
1.40      kristaps   18: #include "config.h"
1.140     schwarze   19:
                     20: #include <sys/types.h>
1.40      kristaps   21:
1.1       kristaps   22: #include <assert.h>
                     23: #include <ctype.h>
                     24: #include <stdlib.h>
                     25: #include <stdio.h>
                     26: #include <string.h>
1.38      kristaps   27: #include <time.h>
1.1       kristaps   28:
1.184     schwarze   29: #include "mandoc.h"
                     30: #include "roff.h"
1.106     kristaps   31: #include "mdoc.h"
1.184     schwarze   32: #include "libmandoc.h"
1.190     schwarze   33: #include "roff_int.h"
1.1       kristaps   34: #include "libmdoc.h"
                     35:
1.151     schwarze   36: static void            blk_full(MACRO_PROT_ARGS);
                     37: static void            blk_exp_close(MACRO_PROT_ARGS);
                     38: static void            blk_part_exp(MACRO_PROT_ARGS);
                     39: static void            blk_part_imp(MACRO_PROT_ARGS);
                     40: static void            ctx_synopsis(MACRO_PROT_ARGS);
                     41: static void            in_line_eoln(MACRO_PROT_ARGS);
                     42: static void            in_line_argn(MACRO_PROT_ARGS);
                     43: static void            in_line(MACRO_PROT_ARGS);
                     44: static void            phrase_ta(MACRO_PROT_ARGS);
1.53      kristaps   45:
1.189     schwarze   46: static void            append_delims(struct roff_man *, int, int *, char *);
                     47: static void            dword(struct roff_man *, int, int, const char *,
1.187     schwarze   48:                                enum mdelim, int);
1.219     schwarze   49: static int             find_pending(struct roff_man *, enum roff_tok,
                     50:                                int, int, struct roff_node *);
1.189     schwarze   51: static int             lookup(struct roff_man *, int, int, int, const char *);
1.153     schwarze   52: static int             macro_or_word(MACRO_PROT_ARGS, int);
1.213     schwarze   53: static void            break_intermediate(struct roff_node *,
1.219     schwarze   54:                                struct roff_node *);
                     55: static int             parse_rest(struct roff_man *, enum roff_tok,
                     56:                                int, int *, char *);
                     57: static enum roff_tok   rew_alt(enum roff_tok);
                     58: static void            rew_elem(struct roff_man *, enum roff_tok);
1.189     schwarze   59: static void            rew_last(struct roff_man *, const struct roff_node *);
                     60: static void            rew_pending(struct roff_man *,
                     61:                                const struct roff_node *);
1.1       kristaps   62:
1.219     schwarze   63: const  struct mdoc_macro __mdoc_macros[MDOC_MAX - MDOC_Dd] = {
1.1       kristaps   64:        { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
                     65:        { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
                     66:        { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123     schwarze   67:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
                     68:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
                     69:        { in_line_eoln, 0 }, /* Pp */
                     70:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
                     71:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1       kristaps   72:        { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123     schwarze   73:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1       kristaps   74:        { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123     schwarze   75:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
                     76:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
                     77:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
                     78:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.219     schwarze   79:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1       kristaps   80:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129     schwarze   81:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1       kristaps   82:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123     schwarze   83:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
                     84:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
                     85:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1       kristaps   86:        { in_line_eoln, 0 }, /* Ex */
1.123     schwarze   87:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
                     88:        { in_line_eoln, 0 }, /* Fd */
1.1       kristaps   89:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123     schwarze   90:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
                     91:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128     schwarze   92:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18      kristaps   93:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123     schwarze   94:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
                     95:        { blk_full, MDOC_JOIN }, /* Nd */
                     96:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1       kristaps   97:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132     schwarze   98:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1       kristaps   99:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
                    100:        { in_line_eoln, 0 }, /* Rv */
1.123     schwarze  101:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1       kristaps  102:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123     schwarze  103:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42      kristaps  104:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123     schwarze  105:        { in_line_eoln, MDOC_JOIN }, /* %A */
                    106:        { in_line_eoln, MDOC_JOIN }, /* %B */
                    107:        { in_line_eoln, MDOC_JOIN }, /* %D */
                    108:        { in_line_eoln, MDOC_JOIN }, /* %I */
                    109:        { in_line_eoln, MDOC_JOIN }, /* %J */
1.1       kristaps  110:        { in_line_eoln, 0 }, /* %N */
1.123     schwarze  111:        { in_line_eoln, MDOC_JOIN }, /* %O */
1.1       kristaps  112:        { in_line_eoln, 0 }, /* %P */
1.123     schwarze  113:        { in_line_eoln, MDOC_JOIN }, /* %R */
                    114:        { in_line_eoln, MDOC_JOIN }, /* %T */
1.1       kristaps  115:        { in_line_eoln, 0 }, /* %V */
1.123     schwarze  116:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    117:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
                    118:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    119:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
                    120:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1       kristaps  121:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123     schwarze  122:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    123:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
                    124:        { blk_full, MDOC_EXPLICIT }, /* Bf */
                    125:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    126:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
                    127:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1       kristaps  128:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
                    129:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
                    130:        { in_line_eoln, 0 }, /* Db */
1.123     schwarze  131:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    132:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
                    133:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    134:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
                    135:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
                    136:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
                    137:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
                    138:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1       kristaps  139:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
                    140:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11      kristaps  141:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144     schwarze  142:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123     schwarze  143:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
                    144:                        MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1       kristaps  145:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
                    146:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123     schwarze  147:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    148:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52      kristaps  149:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123     schwarze  150:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    151:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
                    152:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
                    153:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    154:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
                    155:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
                    156:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    157:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
                    158:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
                    159:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1       kristaps  160:        { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123     schwarze  161:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    162:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
                    163:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    164:                        MDOC_EXPLICIT | MDOC_JOIN }, /* So */
                    165:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147     schwarze  166:        { in_line_argn, 0 }, /* Sm */
1.123     schwarze  167:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
                    168:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1       kristaps  169:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123     schwarze  170:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1       kristaps  171:        { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
                    172:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123     schwarze  173:        { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
                    174:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    175:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
                    176:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    177:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
                    178:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    179:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1       kristaps  180:        { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123     schwarze  181:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1       kristaps  182:        { in_line_eoln, 0 }, /* Bt */
                    183:        { in_line_eoln, 0 }, /* Hf */
1.132     schwarze  184:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1       kristaps  185:        { in_line_eoln, 0 }, /* Ud */
1.69      kristaps  186:        { in_line, 0 }, /* Lb */
1.123     schwarze  187:        { in_line_eoln, 0 }, /* Lp */
                    188:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
                    189:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
                    190:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
                    191:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    192:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
                    193:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    194:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
                    195:        { in_line_eoln, MDOC_JOIN }, /* %C */
1.132     schwarze  196:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
                    197:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1       kristaps  198:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123     schwarze  199:        { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20      kristaps  200:        { in_line_eoln, 0 }, /* sp */
1.37      kristaps  201:        { in_line_eoln, 0 }, /* %U */
1.123     schwarze  202:        { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.1       kristaps  203: };
1.219     schwarze  204: const  struct mdoc_macro *const mdoc_macros = __mdoc_macros - MDOC_Dd;
1.1       kristaps  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,
1.219     schwarze  226:                            n->line, n->pos, roff_name[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: {
1.219     schwarze  241:        enum roff_tok    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) {
1.220     schwarze  248:                res = roffhash_find(mdoc->mdocmac, p, 0);
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;
1.222   ! schwarze  252:                        if (res != MDOC_sp)
1.155     schwarze  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:  */
1.219     schwarze  325: static enum roff_tok
                    326: rew_alt(enum roff_tok 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
1.219     schwarze  367: rew_elem(struct roff_man *mdoc, enum roff_tok 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:
1.213     schwarze  379: static void
                    380: break_intermediate(struct roff_node *n, struct roff_node *breaker)
                    381: {
1.217     schwarze  382:        if (n != breaker &&
                    383:            n->type != ROFFT_BLOCK && n->type != ROFFT_HEAD &&
                    384:            (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
                    385:                n = n->parent;
1.213     schwarze  386:        while (n != breaker) {
                    387:                if ( ! (n->flags & NODE_VALID))
                    388:                        n->flags |= NODE_BROKEN;
                    389:                n = n->parent;
                    390:        }
                    391: }
                    392:
1.83      schwarze  393: /*
1.187     schwarze  394:  * If there is an open sub-block of the target requiring
                    395:  * explicit close-out, postpone closing out the target until
                    396:  * the rew_pending() call closing out the sub-block.
                    397:  */
                    398: static int
1.219     schwarze  399: find_pending(struct roff_man *mdoc, enum roff_tok tok, int line, int ppos,
1.187     schwarze  400:        struct roff_node *target)
                    401: {
                    402:        struct roff_node        *n;
                    403:        int                      irc;
                    404:
1.215     schwarze  405:        if (target->flags & NODE_VALID)
                    406:                return 0;
                    407:
1.187     schwarze  408:        irc = 0;
                    409:        for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
1.213     schwarze  410:                if (n->flags & NODE_ENDED)
1.187     schwarze  411:                        continue;
                    412:                if (n->type == ROFFT_BLOCK &&
                    413:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    414:                        irc = 1;
1.217     schwarze  415:                        break_intermediate(mdoc->last, target);
1.187     schwarze  416:                        if (target->type == ROFFT_HEAD)
1.212     schwarze  417:                                target->flags |= NODE_ENDED;
1.210     schwarze  418:                        else if ( ! (target->flags & NODE_ENDED)) {
1.187     schwarze  419:                                mandoc_vmsg(MANDOCERR_BLK_NEST,
                    420:                                    mdoc->parse, line, ppos,
1.219     schwarze  421:                                    "%s breaks %s", roff_name[tok],
                    422:                                    roff_name[n->tok]);
1.187     schwarze  423:                                mdoc_endbody_alloc(mdoc, line, ppos,
1.216     schwarze  424:                                    tok, target);
1.187     schwarze  425:                        }
                    426:                }
                    427:        }
1.202     schwarze  428:        return irc;
1.187     schwarze  429: }
                    430:
                    431: /*
1.105     kristaps  432:  * Allocate a word and check whether it's punctuation or not.
                    433:  * Punctuation consists of those tokens found in mdoc_isdelim().
                    434:  */
1.150     schwarze  435: static void
1.189     schwarze  436: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123     schwarze  437:                enum mdelim d, int may_append)
1.105     kristaps  438: {
1.131     schwarze  439:
1.150     schwarze  440:        if (d == DELIM_MAX)
1.105     kristaps  441:                d = mdoc_isdelim(p);
                    442:
1.123     schwarze  443:        if (may_append &&
1.150     schwarze  444:            ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184     schwarze  445:            d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150     schwarze  446:            mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.192     schwarze  447:                roff_word_append(mdoc, p);
1.150     schwarze  448:                return;
1.123     schwarze  449:        }
                    450:
1.192     schwarze  451:        roff_word_alloc(mdoc, line, col, p);
1.105     kristaps  452:
1.108     schwarze  453:        /*
1.144     schwarze  454:         * If the word consists of a bare delimiter,
                    455:         * flag the new node accordingly,
                    456:         * unless doing so was vetoed by the invoking macro.
                    457:         * Always clear the veto, it is only valid for one word.
1.108     schwarze  458:         */
                    459:
1.144     schwarze  460:        if (d == DELIM_OPEN)
1.210     schwarze  461:                mdoc->last->flags |= NODE_DELIMO;
1.144     schwarze  462:        else if (d == DELIM_CLOSE &&
                    463:            ! (mdoc->flags & MDOC_NODELIMC) &&
1.131     schwarze  464:            mdoc->last->parent->tok != MDOC_Fd)
1.210     schwarze  465:                mdoc->last->flags |= NODE_DELIMC;
1.144     schwarze  466:        mdoc->flags &= ~MDOC_NODELIMC;
1.105     kristaps  467: }
1.1       kristaps  468:
1.150     schwarze  469: static void
1.189     schwarze  470: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1       kristaps  471: {
1.153     schwarze  472:        char            *p;
1.66      kristaps  473:        int              la;
1.1       kristaps  474:
1.150     schwarze  475:        if (buf[*pos] == '\0')
                    476:                return;
1.1       kristaps  477:
                    478:        for (;;) {
1.66      kristaps  479:                la = *pos;
1.191     schwarze  480:                if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
                    481:                    ARGS_EOLN)
1.1       kristaps  482:                        break;
1.123     schwarze  483:                dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66      kristaps  484:
                    485:                /*
                    486:                 * If we encounter end-of-sentence symbols, then trigger
                    487:                 * the double-space.
                    488:                 *
1.109     kristaps  489:                 * XXX: it's easy to allow this to propagate outward to
1.66      kristaps  490:                 * the last symbol, such that `. )' will cause the
                    491:                 * correct double-spacing.  However, (1) groff isn't
                    492:                 * smart enough to do this and (2) it would require
                    493:                 * knowing which symbols break this behaviour, for
1.109     kristaps  494:                 * example, `.  ;' shouldn't propagate the double-space.
1.66      kristaps  495:                 */
1.150     schwarze  496:
1.127     schwarze  497:                if (mandoc_eos(p, strlen(p)))
1.210     schwarze  498:                        mdoc->last->flags |= NODE_EOS;
1.1       kristaps  499:        }
                    500: }
                    501:
                    502: /*
1.153     schwarze  503:  * Parse one word.
                    504:  * If it is a macro, call it and return 1.
                    505:  * Otherwise, allocate it and return 0.
                    506:  */
                    507: static int
                    508: macro_or_word(MACRO_PROT_ARGS, int parsed)
                    509: {
                    510:        char            *p;
1.185     schwarze  511:        int              ntok;
1.153     schwarze  512:
                    513:        p = buf + ppos;
1.191     schwarze  514:        ntok = TOKEN_NONE;
1.157     schwarze  515:        if (*p == '"')
1.153     schwarze  516:                p++;
1.157     schwarze  517:        else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155     schwarze  518:                ntok = lookup(mdoc, tok, line, ppos, p);
1.153     schwarze  519:
1.191     schwarze  520:        if (ntok == TOKEN_NONE) {
                    521:                dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.153     schwarze  522:                    mdoc_macros[tok].flags & MDOC_JOIN);
1.202     schwarze  523:                return 0;
1.153     schwarze  524:        } else {
1.219     schwarze  525:                if (tok != TOKEN_NONE &&
                    526:                    mdoc_macros[tok].fp == in_line_eoln)
1.153     schwarze  527:                        rew_elem(mdoc, tok);
                    528:                mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.191     schwarze  529:                if (tok == TOKEN_NONE)
1.153     schwarze  530:                        append_delims(mdoc, line, pos, buf);
1.202     schwarze  531:                return 1;
1.153     schwarze  532:        }
                    533: }
                    534:
                    535: /*
1.131     schwarze  536:  * Close out block partial/full explicit.
1.1       kristaps  537:  */
1.151     schwarze  538: static void
1.1       kristaps  539: blk_exp_close(MACRO_PROT_ARGS)
                    540: {
1.185     schwarze  541:        struct roff_node *body;         /* Our own body. */
                    542:        struct roff_node *endbody;      /* Our own end marker. */
                    543:        struct roff_node *itblk;        /* An It block starting later. */
                    544:        struct roff_node *later;        /* A sub-block starting later. */
                    545:        struct roff_node *n;            /* Search back to our block. */
1.188     schwarze  546:        struct roff_node *target;       /* For find_pending(). */
1.83      schwarze  547:
1.188     schwarze  548:        int              j, lastarg, maxargs, nl, pending;
1.55      kristaps  549:        enum margserr    ac;
1.219     schwarze  550:        enum roff_tok    atok, ntok;
1.1       kristaps  551:        char            *p;
                    552:
1.119     schwarze  553:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  554:
1.1       kristaps  555:        switch (tok) {
1.131     schwarze  556:        case MDOC_Ec:
1.1       kristaps  557:                maxargs = 1;
                    558:                break;
1.131     schwarze  559:        case MDOC_Ek:
1.125     schwarze  560:                mdoc->flags &= ~MDOC_KEEP;
1.151     schwarze  561:                /* FALLTHROUGH */
1.1       kristaps  562:        default:
                    563:                maxargs = 0;
                    564:                break;
                    565:        }
                    566:
1.209     schwarze  567:        /* Search backwards for the beginning of our own body. */
                    568:
                    569:        atok = rew_alt(tok);
                    570:        body = NULL;
                    571:        for (n = mdoc->last; n; n = n->parent) {
1.210     schwarze  572:                if (n->flags & NODE_ENDED || n->tok != atok ||
1.209     schwarze  573:                    n->type != ROFFT_BODY || n->end != ENDBODY_NOT)
                    574:                        continue;
                    575:                body = n;
                    576:                break;
                    577:        }
                    578:
1.83      schwarze  579:        /*
                    580:         * Search backwards for beginnings of blocks,
                    581:         * both of our own and of pending sub-blocks.
                    582:         */
1.151     schwarze  583:
1.209     schwarze  584:        endbody = itblk = later = NULL;
1.119     schwarze  585:        for (n = mdoc->last; n; n = n->parent) {
1.213     schwarze  586:                if (n->flags & NODE_ENDED)
1.83      schwarze  587:                        continue;
                    588:
1.209     schwarze  589:                /*
1.211     schwarze  590:                 * Mismatching end macros can never break anything
1.209     schwarze  591:                 * and we only care about the breaking of BLOCKs.
                    592:                 */
1.83      schwarze  593:
1.211     schwarze  594:                if (body == NULL || n->type != ROFFT_BLOCK)
1.83      schwarze  595:                        continue;
1.160     schwarze  596:
1.211     schwarze  597:                /*
                    598:                 * SYNOPSIS name blocks can not be broken themselves,
                    599:                 * but they do get broken together with a broken child.
                    600:                 */
                    601:
                    602:                if (n->tok == MDOC_Nm) {
                    603:                        if (later != NULL)
                    604:                                n->flags |= NODE_BROKEN | NODE_ENDED;
                    605:                        continue;
                    606:                }
                    607:
1.160     schwarze  608:                if (n->tok == MDOC_It) {
1.171     schwarze  609:                        itblk = n;
1.160     schwarze  610:                        continue;
                    611:                }
                    612:
1.83      schwarze  613:                if (atok == n->tok) {
                    614:
                    615:                        /*
                    616:                         * Found the start of our own block.
                    617:                         * When there is no pending sub block,
                    618:                         * just proceed to closing out.
                    619:                         */
1.151     schwarze  620:
1.160     schwarze  621:                        if (later == NULL ||
1.171     schwarze  622:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  623:                                break;
                    624:
1.131     schwarze  625:                        /*
1.167     schwarze  626:                         * When there is a pending sub block, postpone
                    627:                         * closing out the current block until the
                    628:                         * rew_pending() closing out the sub-block.
1.83      schwarze  629:                         * Mark the place where the formatting - but not
                    630:                         * the scope - of the current block ends.
                    631:                         */
1.151     schwarze  632:
1.183     schwarze  633:                        mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
                    634:                            line, ppos, "%s breaks %s",
1.219     schwarze  635:                            roff_name[atok], roff_name[later->tok]);
1.183     schwarze  636:
1.166     schwarze  637:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.216     schwarze  638:                            atok, body);
1.151     schwarze  639:
1.183     schwarze  640:                        if (tok == MDOC_El)
1.210     schwarze  641:                                itblk->flags |= NODE_ENDED | NODE_BROKEN;
1.183     schwarze  642:
1.151     schwarze  643:                        /*
                    644:                         * If a block closing macro taking arguments
                    645:                         * breaks another block, put the arguments
1.166     schwarze  646:                         * into the end marker.
1.151     schwarze  647:                         */
                    648:
1.166     schwarze  649:                        if (maxargs)
1.189     schwarze  650:                                mdoc->next = ROFF_NEXT_CHILD;
1.83      schwarze  651:                        break;
1.182     schwarze  652:                }
                    653:
1.214     schwarze  654:                /*
                    655:                 * Explicit blocks close out description lines, but
                    656:                 * even those can get broken together with a child.
                    657:                 */
1.182     schwarze  658:
                    659:                if (n->tok == MDOC_Nd) {
1.214     schwarze  660:                        if (later != NULL)
                    661:                                n->flags |= NODE_BROKEN | NODE_ENDED;
                    662:                        else
                    663:                                rew_last(mdoc, n);
1.182     schwarze  664:                        continue;
1.83      schwarze  665:                }
                    666:
1.183     schwarze  667:                /* Breaking an open sub block. */
1.151     schwarze  668:
1.213     schwarze  669:                break_intermediate(mdoc->last, body);
1.210     schwarze  670:                n->flags |= NODE_BROKEN;
1.183     schwarze  671:                if (later == NULL)
1.83      schwarze  672:                        later = n;
                    673:        }
1.166     schwarze  674:
                    675:        if (body == NULL) {
                    676:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
1.219     schwarze  677:                    line, ppos, roff_name[tok]);
1.166     schwarze  678:                if (maxargs && endbody == NULL) {
                    679:                        /*
                    680:                         * Stray .Ec without previous .Eo:
                    681:                         * Break the output line, keep the arguments.
                    682:                         */
1.221     schwarze  683:                        roff_elem_alloc(mdoc, line, ppos, ROFF_br);
                    684:                        rew_elem(mdoc, ROFF_br);
1.166     schwarze  685:                }
                    686:        } else if (endbody == NULL) {
                    687:                rew_last(mdoc, body);
                    688:                if (maxargs)
                    689:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    690:        }
1.83      schwarze  691:
1.150     schwarze  692:        if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
                    693:                if (buf[*pos] != '\0')
1.136     schwarze  694:                        mandoc_vmsg(MANDOCERR_ARG_SKIP,
                    695:                            mdoc->parse, line, ppos,
1.219     schwarze  696:                            "%s %s", roff_name[tok],
1.136     schwarze  697:                            buf + *pos);
1.171     schwarze  698:                if (endbody == NULL && n != NULL)
1.167     schwarze  699:                        rew_pending(mdoc, n);
1.151     schwarze  700:                return;
1.1       kristaps  701:        }
                    702:
1.166     schwarze  703:        if (endbody != NULL)
                    704:                n = endbody;
1.197     schwarze  705:
                    706:        ntok = TOKEN_NONE;
1.148     schwarze  707:        for (j = 0; ; j++) {
1.1       kristaps  708:                lastarg = *pos;
                    709:
1.186     schwarze  710:                if (j == maxargs && n != NULL)
                    711:                        rew_last(mdoc, n);
1.1       kristaps  712:
1.119     schwarze  713:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  714:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  715:                        break;
                    716:
1.191     schwarze  717:                ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.155     schwarze  718:                    lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  719:
1.191     schwarze  720:                if (ntok == TOKEN_NONE) {
1.150     schwarze  721:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
                    722:                            MDOC_JOIN & mdoc_macros[tok].flags);
1.54      kristaps  723:                        continue;
                    724:                }
1.1       kristaps  725:
1.186     schwarze  726:                if (n != NULL)
                    727:                        rew_last(mdoc, n);
1.122     schwarze  728:                mdoc->flags &= ~MDOC_NEWLINE;
1.151     schwarze  729:                mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  730:                break;
1.1       kristaps  731:        }
                    732:
1.188     schwarze  733:        if (n != NULL) {
1.212     schwarze  734:                pending = 0;
1.210     schwarze  735:                if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
1.188     schwarze  736:                        target = n;
                    737:                        do
                    738:                                target = target->parent;
1.210     schwarze  739:                        while ( ! (target->flags & NODE_ENDED));
1.215     schwarze  740:                        pending = find_pending(mdoc, ntok, line, ppos, target);
1.212     schwarze  741:                }
1.188     schwarze  742:                if ( ! pending)
                    743:                        rew_pending(mdoc, n);
                    744:        }
1.150     schwarze  745:        if (nl)
                    746:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  747: }
                    748:
1.151     schwarze  749: static void
1.1       kristaps  750: in_line(MACRO_PROT_ARGS)
                    751: {
1.144     schwarze  752:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.219     schwarze  753:        enum roff_tok    ntok;
1.55      kristaps  754:        enum margserr    ac;
1.67      schwarze  755:        enum mdelim      d;
1.53      kristaps  756:        struct mdoc_arg *arg;
                    757:        char            *p;
1.1       kristaps  758:
1.119     schwarze  759:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  760:
1.4       kristaps  761:        /*
                    762:         * Whether we allow ignored elements (those without content,
                    763:         * usually because of reserved words) to squeak by.
                    764:         */
1.45      kristaps  765:
1.4       kristaps  766:        switch (tok) {
1.131     schwarze  767:        case MDOC_An:
                    768:        case MDOC_Ar:
                    769:        case MDOC_Fl:
                    770:        case MDOC_Mt:
                    771:        case MDOC_Nm:
                    772:        case MDOC_Pa:
1.4       kristaps  773:                nc = 1;
                    774:                break;
                    775:        default:
                    776:                nc = 0;
                    777:                break;
                    778:        }
                    779:
1.152     schwarze  780:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  781:
1.144     schwarze  782:        d = DELIM_NONE;
                    783:        firstarg = 1;
1.142     schwarze  784:        mayopen = 1;
1.70      kristaps  785:        for (cnt = scope = 0;; ) {
1.1       kristaps  786:                la = *pos;
1.119     schwarze  787:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  788:
1.144     schwarze  789:                /*
                    790:                 * At the end of a macro line,
                    791:                 * opening delimiters do not suppress spacing.
                    792:                 */
                    793:
                    794:                if (ac == ARGS_EOLN) {
                    795:                        if (d == DELIM_OPEN)
1.210     schwarze  796:                                mdoc->last->flags &= ~NODE_DELIMO;
1.1       kristaps  797:                        break;
1.144     schwarze  798:                }
                    799:
                    800:                /*
                    801:                 * The rest of the macro line is only punctuation,
                    802:                 * to be handled by append_delims().
                    803:                 * If there were no other arguments,
                    804:                 * do not allow the first one to suppress spacing,
                    805:                 * even if it turns out to be a closing one.
                    806:                 */
                    807:
                    808:                if (ac == ARGS_PUNCT) {
1.176     schwarze  809:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  810:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  811:                        break;
1.144     schwarze  812:                }
1.1       kristaps  813:
1.145     schwarze  814:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.191     schwarze  815:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1       kristaps  816:
1.131     schwarze  817:                /*
1.4       kristaps  818:                 * In this case, we've located a submacro and must
                    819:                 * execute it.  Close out scope, if open.  If no
                    820:                 * elements have been generated, either create one (nc)
                    821:                 * or raise a warning.
                    822:                 */
1.1       kristaps  823:
1.191     schwarze  824:                if (ntok != TOKEN_NONE) {
1.149     schwarze  825:                        if (scope)
                    826:                                rew_elem(mdoc, tok);
1.150     schwarze  827:                        if (nc && ! cnt) {
                    828:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  829:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  830:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  831:                                mdoc_argv_free(arg);
1.135     schwarze  832:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    833:                                    mdoc->parse, line, ppos,
1.219     schwarze  834:                                    roff_name[tok]);
1.7       kristaps  835:                        }
1.151     schwarze  836:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150     schwarze  837:                        if (nl)
                    838:                                append_delims(mdoc, line, pos, buf);
1.151     schwarze  839:                        return;
1.131     schwarze  840:                }
1.1       kristaps  841:
1.131     schwarze  842:                /*
1.4       kristaps  843:                 * Non-quote-enclosed punctuation.  Set up our scope, if
                    844:                 * a word; rewind the scope, if a delimiter; then append
1.131     schwarze  845:                 * the word.
1.4       kristaps  846:                 */
1.1       kristaps  847:
1.150     schwarze  848:                d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3       kristaps  849:
1.70      kristaps  850:                if (DELIM_NONE != d) {
                    851:                        /*
                    852:                         * If we encounter closing punctuation, no word
1.144     schwarze  853:                         * has been emitted, no scope is open, and we're
1.70      kristaps  854:                         * allowed to have an empty element, then start
1.142     schwarze  855:                         * a new scope.
1.70      kristaps  856:                         */
1.142     schwarze  857:                        if ((d == DELIM_CLOSE ||
                    858:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  859:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  860:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  861:                                scope = 1;
1.142     schwarze  862:                                cnt++;
1.150     schwarze  863:                                if (tok == MDOC_Nm)
1.142     schwarze  864:                                        mayopen = 0;
1.70      kristaps  865:                        }
                    866:                        /*
                    867:                         * Close out our scope, if one is open, before
                    868:                         * any punctuation.
                    869:                         */
1.149     schwarze  870:                        if (scope)
                    871:                                rew_elem(mdoc, tok);
1.70      kristaps  872:                        scope = 0;
1.145     schwarze  873:                        if (tok == MDOC_Fn)
                    874:                                mayopen = 0;
1.142     schwarze  875:                } else if (mayopen && !scope) {
1.150     schwarze  876:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  877:                        scope = 1;
1.142     schwarze  878:                        cnt++;
1.1       kristaps  879:                }
1.105     kristaps  880:
1.150     schwarze  881:                dword(mdoc, line, la, p, d,
1.219     schwarze  882:                    mdoc_macros[tok].flags & MDOC_JOIN);
1.39      kristaps  883:
                    884:                /*
1.144     schwarze  885:                 * If the first argument is a closing delimiter,
                    886:                 * do not suppress spacing before it.
                    887:                 */
                    888:
                    889:                if (firstarg && d == DELIM_CLOSE && !nc)
1.210     schwarze  890:                        mdoc->last->flags &= ~NODE_DELIMC;
1.144     schwarze  891:                firstarg = 0;
                    892:
                    893:                /*
1.39      kristaps  894:                 * `Fl' macros have their scope re-opened with each new
                    895:                 * word so that the `-' can be added to each one without
                    896:                 * having to parse out spaces.
                    897:                 */
1.150     schwarze  898:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  899:                        rew_elem(mdoc, tok);
1.70      kristaps  900:                        scope = 0;
1.39      kristaps  901:                }
1.1       kristaps  902:        }
                    903:
1.218     schwarze  904:        if (scope && tok != MDOC_Lk) {
1.149     schwarze  905:                rew_elem(mdoc, tok);
1.218     schwarze  906:                scope = 0;
                    907:        }
1.4       kristaps  908:
                    909:        /*
                    910:         * If no elements have been collected and we're allowed to have
                    911:         * empties (nc), open a scope and close it out.  Otherwise,
                    912:         * raise a warning.
                    913:         */
1.45      kristaps  914:
1.150     schwarze  915:        if ( ! cnt) {
                    916:                if (nc) {
                    917:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    918:                        rew_last(mdoc, mdoc->last);
                    919:                } else {
                    920:                        mdoc_argv_free(arg);
                    921:                        mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.219     schwarze  922:                            line, ppos, roff_name[tok]);
1.150     schwarze  923:                }
1.7       kristaps  924:        }
1.150     schwarze  925:        if (nl)
                    926:                append_delims(mdoc, line, pos, buf);
1.218     schwarze  927:        if (scope)
                    928:                rew_elem(mdoc, tok);
1.1       kristaps  929: }
                    930:
1.151     schwarze  931: static void
1.1       kristaps  932: blk_full(MACRO_PROT_ARGS)
                    933: {
1.153     schwarze  934:        int               la, nl, parsed;
1.1       kristaps  935:        struct mdoc_arg  *arg;
1.185     schwarze  936:        struct roff_node *blk; /* Our own or a broken block. */
                    937:        struct roff_node *head; /* Our own head. */
                    938:        struct roff_node *body; /* Our own body. */
                    939:        struct roff_node *n;
1.59      kristaps  940:        enum margserr     ac, lac;
1.1       kristaps  941:        char             *p;
                    942:
1.119     schwarze  943:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  944:
1.177     schwarze  945:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    946:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.219     schwarze  947:                    line, ppos, roff_name[tok]);
1.177     schwarze  948:                return;
                    949:        }
                    950:
1.171     schwarze  951:        if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
                    952:
                    953:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    954:
                    955:                blk = NULL;
                    956:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze  957:                        if (n->flags & NODE_ENDED) {
                    958:                                if ( ! (n->flags & NODE_VALID))
                    959:                                        n->flags |= NODE_BROKEN;
1.183     schwarze  960:                                continue;
                    961:                        }
1.184     schwarze  962:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  963:                                continue;
1.183     schwarze  964:
1.171     schwarze  965:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    966:                                if (blk != NULL) {
                    967:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    968:                                            mdoc->parse, line, ppos,
                    969:                                            "It breaks %s",
1.219     schwarze  970:                                            roff_name[blk->tok]);
1.171     schwarze  971:                                        rew_pending(mdoc, blk);
                    972:                                }
                    973:                                break;
                    974:                        }
                    975:
                    976:                        if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    977:                                switch (tok) {
                    978:                                case MDOC_Sh:
                    979:                                case MDOC_Ss:
                    980:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    981:                                            mdoc->parse, line, ppos,
1.219     schwarze  982:                                            "%s breaks %s", roff_name[tok],
                    983:                                            roff_name[n->tok]);
1.171     schwarze  984:                                        rew_pending(mdoc, n);
1.180     schwarze  985:                                        n = mdoc->last;
1.171     schwarze  986:                                        continue;
                    987:                                case MDOC_It:
                    988:                                        /* Delay in case it's astray. */
                    989:                                        blk = n;
                    990:                                        continue;
                    991:                                default:
                    992:                                        break;
                    993:                                }
                    994:                                break;
                    995:                        }
                    996:
                    997:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze  998:
1.171     schwarze  999:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                   1000:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                   1001:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze 1002:                                break;
1.171     schwarze 1003:
                   1004:                        /* Item breaking an explicit block. */
                   1005:
                   1006:                        if (blk != NULL) {
                   1007:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                   1008:                                    mdoc->parse, line, ppos,
1.219     schwarze 1009:                                    "It breaks %s", roff_name[blk->tok]);
1.171     schwarze 1010:                                rew_pending(mdoc, blk);
1.172     schwarze 1011:                                blk = NULL;
1.171     schwarze 1012:                        }
                   1013:
                   1014:                        /* Close out prior implicit scopes. */
                   1015:
1.211     schwarze 1016:                        rew_pending(mdoc, n);
1.171     schwarze 1017:                }
                   1018:
                   1019:                /* Skip items outside lists. */
                   1020:
                   1021:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138     schwarze 1022:                        mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
                   1023:                            line, ppos, "It %s", buf + *pos);
1.221     schwarze 1024:                        roff_elem_alloc(mdoc, line, ppos, ROFF_br);
                   1025:                        rew_elem(mdoc, ROFF_br);
1.151     schwarze 1026:                        return;
1.138     schwarze 1027:                }
1.1       kristaps 1028:        }
                   1029:
1.45      kristaps 1030:        /*
1.109     kristaps 1031:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps 1032:         * macro openings.  Implicit ones first close out prior scope
                   1033:         * (seen above).  Delay opening the head until necessary to
                   1034:         * allow leading punctuation to print.  Special consideration
                   1035:         * for `It -column', which has phrase-part syntax instead of
                   1036:         * regular child nodes.
                   1037:         */
                   1038:
1.152     schwarze 1039:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze 1040:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps 1041:        head = body = NULL;
1.115     schwarze 1042:
                   1043:        /*
                   1044:         * Exception: Heads of `It' macros in `-diag' lists are not
                   1045:         * parsed, even though `It' macros in general are parsed.
                   1046:         */
1.151     schwarze 1047:
1.153     schwarze 1048:        parsed = tok != MDOC_It ||
                   1049:            mdoc->last->parent->tok != MDOC_Bl ||
                   1050:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps 1051:
1.45      kristaps 1052:        /*
                   1053:         * The `Nd' macro has all arguments in its body: it's a hybrid
                   1054:         * of block partial-explicit and full-implicit.  Stupid.
                   1055:         */
1.19      kristaps 1056:
1.150     schwarze 1057:        if (tok == MDOC_Nd) {
1.190     schwarze 1058:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze 1059:                rew_last(mdoc, head);
1.190     schwarze 1060:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze 1061:        }
                   1062:
1.150     schwarze 1063:        if (tok == MDOC_Bk)
1.123     schwarze 1064:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps 1065:
1.205     schwarze 1066:        ac = ARGS_EOLN;
1.150     schwarze 1067:        for (;;) {
1.205     schwarze 1068:
                   1069:                /*
                   1070:                 * If we are right after a tab character,
                   1071:                 * do not parse the first word for macros.
                   1072:                 */
                   1073:
                   1074:                if (mdoc->flags & MDOC_PHRASEQN) {
                   1075:                        mdoc->flags &= ~MDOC_PHRASEQN;
                   1076:                        mdoc->flags |= MDOC_PHRASEQF;
                   1077:                }
                   1078:
1.45      kristaps 1079:                la = *pos;
1.150     schwarze 1080:                lac = ac;
1.119     schwarze 1081:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1082:                if (ac == ARGS_EOLN) {
1.205     schwarze 1083:                        if (lac != ARGS_PHRASE ||
                   1084:                            ! (mdoc->flags & MDOC_PHRASEQF))
1.75      kristaps 1085:                                break;
1.205     schwarze 1086:
1.75      kristaps 1087:                        /*
1.205     schwarze 1088:                         * This line ends in a tab; start the next
                   1089:                         * column now, with a leading blank.
1.75      kristaps 1090:                         */
1.205     schwarze 1091:
1.167     schwarze 1092:                        if (body != NULL)
                   1093:                                rew_last(mdoc, body);
1.190     schwarze 1094:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.205     schwarze 1095:                        roff_word_alloc(mdoc, line, ppos, "\\&");
1.1       kristaps 1096:                        break;
1.75      kristaps 1097:                }
1.205     schwarze 1098:
1.174     schwarze 1099:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
                   1100:                        mandoc_vmsg(MANDOCERR_ARG_EXCESS,
                   1101:                            mdoc->parse, line, la, "%s ... %s",
1.219     schwarze 1102:                            roff_name[tok], buf + la);
1.174     schwarze 1103:                        break;
                   1104:                }
1.173     schwarze 1105:                if (tok == MDOC_Rs) {
                   1106:                        mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
                   1107:                            line, la, "Rs %s", buf + la);
                   1108:                        break;
                   1109:                }
                   1110:                if (ac == ARGS_PUNCT)
                   1111:                        break;
1.45      kristaps 1112:
1.131     schwarze 1113:                /*
1.73      kristaps 1114:                 * Emit leading punctuation (i.e., punctuation before
1.184     schwarze 1115:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1116:                 */
1.45      kristaps 1117:
1.150     schwarze 1118:                if (head == NULL &&
                   1119:                    ac != ARGS_PHRASE &&
                   1120:                    ac != ARGS_QWORD &&
                   1121:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1122:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1123:                        continue;
                   1124:                }
                   1125:
1.74      kristaps 1126:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1127:
1.150     schwarze 1128:                if (head == NULL)
1.190     schwarze 1129:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1130:
1.205     schwarze 1131:                if (ac == ARGS_PHRASE) {
1.151     schwarze 1132:
1.73      kristaps 1133:                        /*
1.74      kristaps 1134:                         * If we haven't opened a body yet, rewind the
                   1135:                         * head; if we have, rewind that instead.
                   1136:                         */
                   1137:
1.167     schwarze 1138:                        rew_last(mdoc, body == NULL ? head : body);
1.190     schwarze 1139:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1140:
1.205     schwarze 1141:                        /* Process to the tab or to the end of the line. */
1.74      kristaps 1142:
1.205     schwarze 1143:                        mdoc->flags |= MDOC_PHRASE;
1.191     schwarze 1144:                        parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.205     schwarze 1145:                        mdoc->flags &= ~MDOC_PHRASE;
1.204     schwarze 1146:
                   1147:                        /* There may have been `Ta' macros. */
                   1148:
                   1149:                        while (body->next != NULL)
                   1150:                                body = body->next;
1.1       kristaps 1151:                        continue;
                   1152:                }
                   1153:
1.153     schwarze 1154:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1155:                        break;
1.45      kristaps 1156:        }
1.1       kristaps 1157:
1.210     schwarze 1158:        if (blk->flags & NODE_VALID)
1.165     schwarze 1159:                return;
1.150     schwarze 1160:        if (head == NULL)
1.190     schwarze 1161:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1162:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1163:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1164:        if (body != NULL)
1.77      kristaps 1165:                goto out;
1.187     schwarze 1166:        if (find_pending(mdoc, tok, line, ppos, head))
1.183     schwarze 1167:                return;
1.47      kristaps 1168:
1.45      kristaps 1169:        /* Close out scopes to remain in a consistent state. */
                   1170:
1.167     schwarze 1171:        rew_last(mdoc, head);
1.190     schwarze 1172:        body = roff_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1173: out:
1.150     schwarze 1174:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1175:                rew_last(mdoc, body);
                   1176:                rew_last(mdoc, blk);
1.150     schwarze 1177:                mdoc->flags &= ~MDOC_FREECOL;
                   1178:        }
1.1       kristaps 1179: }
                   1180:
1.151     schwarze 1181: static void
1.1       kristaps 1182: blk_part_imp(MACRO_PROT_ARGS)
                   1183: {
1.63      kristaps 1184:        int               la, nl;
1.55      kristaps 1185:        enum margserr     ac;
1.1       kristaps 1186:        char             *p;
1.185     schwarze 1187:        struct roff_node *blk; /* saved block context */
                   1188:        struct roff_node *body; /* saved body context */
                   1189:        struct roff_node *n;
1.1       kristaps 1190:
1.119     schwarze 1191:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1192:
1.43      kristaps 1193:        /*
                   1194:         * A macro that spans to the end of the line.  This is generally
                   1195:         * (but not necessarily) called as the first macro.  The block
                   1196:         * has a head as the immediate child, which is always empty,
                   1197:         * followed by zero or more opening punctuation nodes, then the
                   1198:         * body (which may be empty, depending on the macro), then zero
                   1199:         * or more closing punctuation nodes.
                   1200:         */
1.32      kristaps 1201:
1.150     schwarze 1202:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190     schwarze 1203:        rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1204:
1.43      kristaps 1205:        /*
                   1206:         * Open the body scope "on-demand", that is, after we've
                   1207:         * processed all our the leading delimiters (open parenthesis,
                   1208:         * etc.).
                   1209:         */
1.1       kristaps 1210:
1.43      kristaps 1211:        for (body = NULL; ; ) {
1.32      kristaps 1212:                la = *pos;
1.119     schwarze 1213:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1214:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1215:                        break;
                   1216:
1.150     schwarze 1217:                if (body == NULL && ac != ARGS_QWORD &&
                   1218:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1219:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1220:                        continue;
1.123     schwarze 1221:                }
1.1       kristaps 1222:
1.150     schwarze 1223:                if (body == NULL)
1.190     schwarze 1224:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1225:
1.153     schwarze 1226:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1227:                        break;
1.1       kristaps 1228:        }
1.150     schwarze 1229:        if (body == NULL)
1.190     schwarze 1230:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1231:
1.187     schwarze 1232:        if (find_pending(mdoc, tok, line, ppos, body))
1.183     schwarze 1233:                return;
                   1234:
1.164     schwarze 1235:        rew_last(mdoc, body);
1.150     schwarze 1236:        if (nl)
                   1237:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1238:        rew_pending(mdoc, blk);
1.117     schwarze 1239:
                   1240:        /* Move trailing .Ns out of scope. */
                   1241:
                   1242:        for (n = body->child; n && n->next; n = n->next)
                   1243:                /* Do nothing. */ ;
1.150     schwarze 1244:        if (n && n->tok == MDOC_Ns)
1.119     schwarze 1245:                mdoc_node_relink(mdoc, n);
1.1       kristaps 1246: }
                   1247:
1.151     schwarze 1248: static void
1.1       kristaps 1249: blk_part_exp(MACRO_PROT_ARGS)
                   1250: {
1.60      kristaps 1251:        int               la, nl;
1.55      kristaps 1252:        enum margserr     ac;
1.185     schwarze 1253:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1254:        char             *p;
                   1255:
1.119     schwarze 1256:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1257:
1.43      kristaps 1258:        /*
                   1259:         * The opening of an explicit macro having zero or more leading
                   1260:         * punctuation nodes; a head with optional single element (the
                   1261:         * case of `Eo'); and a body that may be empty.
                   1262:         */
1.32      kristaps 1263:
1.193     schwarze 1264:        roff_block_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1265:        head = NULL;
                   1266:        for (;;) {
1.32      kristaps 1267:                la = *pos;
1.119     schwarze 1268:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1269:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1270:                        break;
1.43      kristaps 1271:
                   1272:                /* Flush out leading punctuation. */
                   1273:
1.150     schwarze 1274:                if (head == NULL && ac != ARGS_QWORD &&
                   1275:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1276:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1277:                        continue;
1.123     schwarze 1278:                }
1.43      kristaps 1279:
1.150     schwarze 1280:                if (head == NULL) {
1.190     schwarze 1281:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1282:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1283:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1284:                        rew_last(mdoc, head);
1.190     schwarze 1285:                        roff_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1286:                        if (tok == MDOC_Eo)
1.43      kristaps 1287:                                continue;
1.1       kristaps 1288:                }
1.43      kristaps 1289:
1.153     schwarze 1290:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1291:                        break;
1.1       kristaps 1292:        }
                   1293:
1.43      kristaps 1294:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1295:
1.163     schwarze 1296:        if (head == NULL) {
1.190     schwarze 1297:                rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
                   1298:                roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1299:        }
1.150     schwarze 1300:        if (nl)
                   1301:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1302: }
                   1303:
1.151     schwarze 1304: static void
1.1       kristaps 1305: in_line_argn(MACRO_PROT_ARGS)
                   1306: {
1.53      kristaps 1307:        struct mdoc_arg *arg;
                   1308:        char            *p;
1.181     schwarze 1309:        enum margserr    ac;
1.219     schwarze 1310:        enum roff_tok    ntok;
1.181     schwarze 1311:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1312:        int              la, maxargs, nl;
1.1       kristaps 1313:
1.156     schwarze 1314:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1315:
1.46      kristaps 1316:        /*
                   1317:         * A line macro that has a fixed number of arguments (maxargs).
                   1318:         * Only open the scope once the first non-leading-punctuation is
                   1319:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1320:         * keep it open until the maximum number of arguments are
                   1321:         * exhausted.
                   1322:         */
1.1       kristaps 1323:
                   1324:        switch (tok) {
1.131     schwarze 1325:        case MDOC_Ap:
                   1326:        case MDOC_Ns:
                   1327:        case MDOC_Ux:
1.1       kristaps 1328:                maxargs = 0;
                   1329:                break;
1.131     schwarze 1330:        case MDOC_Bx:
1.132     schwarze 1331:        case MDOC_Es:
1.131     schwarze 1332:        case MDOC_Xr:
1.42      kristaps 1333:                maxargs = 2;
                   1334:                break;
1.1       kristaps 1335:        default:
                   1336:                maxargs = 1;
                   1337:                break;
                   1338:        }
                   1339:
1.152     schwarze 1340:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1341:
1.181     schwarze 1342:        state = -1;
1.156     schwarze 1343:        p = NULL;
                   1344:        for (;;) {
1.32      kristaps 1345:                la = *pos;
1.119     schwarze 1346:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1347:
                   1348:                if (ac == ARGS_WORD && state == -1 &&
                   1349:                    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
                   1350:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1351:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1352:                        continue;
                   1353:                }
                   1354:
                   1355:                if (state == -1 && tok != MDOC_In &&
                   1356:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1357:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1358:                        state = 0;
                   1359:                }
                   1360:
1.156     schwarze 1361:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1362:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1363:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1364:                                    mdoc->parse, line, ppos, "Pf %s",
                   1365:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1366:                        break;
1.156     schwarze 1367:                }
1.1       kristaps 1368:
1.181     schwarze 1369:                if (state == maxargs) {
1.149     schwarze 1370:                        rew_elem(mdoc, tok);
1.181     schwarze 1371:                        state = -2;
1.46      kristaps 1372:                }
                   1373:
1.181     schwarze 1374:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.191     schwarze 1375:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1376:
1.191     schwarze 1377:                if (ntok != TOKEN_NONE) {
1.181     schwarze 1378:                        if (state >= 0) {
1.149     schwarze 1379:                                rew_elem(mdoc, tok);
1.181     schwarze 1380:                                state = -2;
                   1381:                        }
1.151     schwarze 1382:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1       kristaps 1383:                        break;
                   1384:                }
                   1385:
1.181     schwarze 1386:                if (ac == ARGS_QWORD ||
                   1387:                    mdoc_macros[tok].flags & MDOC_IGNDELIM ||
                   1388:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1389:                        if (state == -1) {
                   1390:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1391:                                state = 1;
                   1392:                        } else if (state >= 0)
                   1393:                                state++;
                   1394:                } else if (state >= 0) {
1.149     schwarze 1395:                        rew_elem(mdoc, tok);
1.181     schwarze 1396:                        state = -2;
1.1       kristaps 1397:                }
1.42      kristaps 1398:
1.150     schwarze 1399:                dword(mdoc, line, la, p, DELIM_MAX,
1.219     schwarze 1400:                    mdoc_macros[tok].flags & MDOC_JOIN);
1.1       kristaps 1401:        }
                   1402:
1.181     schwarze 1403:        if (state == -1) {
                   1404:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.219     schwarze 1405:                    line, ppos, roff_name[tok]);
1.181     schwarze 1406:                return;
1.156     schwarze 1407:        }
1.181     schwarze 1408:
                   1409:        if (state == 0 && tok == MDOC_Pf)
                   1410:                append_delims(mdoc, line, pos, buf);
                   1411:        if (state >= 0)
1.149     schwarze 1412:                rew_elem(mdoc, tok);
1.150     schwarze 1413:        if (nl)
                   1414:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1415: }
                   1416:
1.151     schwarze 1417: static void
1.1       kristaps 1418: in_line_eoln(MACRO_PROT_ARGS)
                   1419: {
1.185     schwarze 1420:        struct roff_node        *n;
1.170     schwarze 1421:        struct mdoc_arg         *arg;
1.1       kristaps 1422:
1.170     schwarze 1423:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1424:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1425:                n = mdoc->last;
1.189     schwarze 1426:                if (mdoc->next == ROFF_NEXT_SIBLING)
1.170     schwarze 1427:                        n = n->parent;
                   1428:                if (n->tok == MDOC_Nm)
1.198     schwarze 1429:                        rew_last(mdoc, n->parent);
1.178     schwarze 1430:        }
                   1431:
1.179     schwarze 1432:        if (buf[*pos] == '\0' &&
1.219     schwarze 1433:            (tok == MDOC_Fd || *roff_name[tok] == '%')) {
1.178     schwarze 1434:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.219     schwarze 1435:                    line, ppos, roff_name[tok]);
1.178     schwarze 1436:                return;
1.170     schwarze 1437:        }
1.90      schwarze 1438:
1.152     schwarze 1439:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1440:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1441:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1442:                return;
                   1443:        rew_elem(mdoc, tok);
                   1444: }
                   1445:
                   1446: /*
                   1447:  * The simplest argument parser available: Parse the remaining
                   1448:  * words until the end of the phrase or line and return 0
                   1449:  * or until the next macro, call that macro, and return 1.
                   1450:  */
                   1451: static int
1.219     schwarze 1452: parse_rest(struct roff_man *mdoc, enum roff_tok tok,
                   1453:     int line, int *pos, char *buf)
1.154     schwarze 1454: {
                   1455:        int              la;
1.1       kristaps 1456:
                   1457:        for (;;) {
                   1458:                la = *pos;
1.153     schwarze 1459:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.202     schwarze 1460:                        return 0;
1.153     schwarze 1461:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.202     schwarze 1462:                        return 1;
1.1       kristaps 1463:        }
                   1464: }
                   1465:
1.151     schwarze 1466: static void
1.41      kristaps 1467: ctx_synopsis(MACRO_PROT_ARGS)
                   1468: {
1.60      kristaps 1469:
1.151     schwarze 1470:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1471:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1472:        else if (tok == MDOC_Nm)
                   1473:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1474:        else {
                   1475:                assert(tok == MDOC_Vt);
                   1476:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1477:        }
1.1       kristaps 1478: }
                   1479:
1.24      kristaps 1480: /*
                   1481:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1482:  * They're unusual because they're basically free-form text until a
                   1483:  * macro is encountered.
                   1484:  */
1.151     schwarze 1485: static void
1.75      kristaps 1486: phrase_ta(MACRO_PROT_ARGS)
                   1487: {
1.185     schwarze 1488:        struct roff_node *body, *n;
1.75      kristaps 1489:
1.121     schwarze 1490:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1491:
1.167     schwarze 1492:        body = NULL;
                   1493:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze 1494:                if (n->flags & NODE_ENDED)
1.167     schwarze 1495:                        continue;
1.184     schwarze 1496:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1497:                        body = n;
1.208     schwarze 1498:                if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
1.167     schwarze 1499:                        break;
                   1500:        }
                   1501:
1.151     schwarze 1502:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1503:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1504:                    line, ppos, "Ta");
1.151     schwarze 1505:                return;
1.121     schwarze 1506:        }
1.75      kristaps 1507:
1.121     schwarze 1508:        /* Advance to the next column. */
1.150     schwarze 1509:
1.167     schwarze 1510:        rew_last(mdoc, body);
1.190     schwarze 1511:        roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191     schwarze 1512:        parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75      kristaps 1513: }

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