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Annotation of mandoc/mdoc_macro.c, Revision 1.197

1.197   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.196 2015/04/29 14:48:53 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)
                    246:                                return(res);
                    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:        }
1.191     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: {
1.185     schwarze  261:        struct roff_node *n, *np;
1.1       kristaps  262:
1.186     schwarze  263:        if (to->flags & MDOC_VALID)
                    264:                return;
                    265:
1.189     schwarze  266:        mdoc->next = ROFF_NEXT_SIBLING;
1.1       kristaps  267:        while (mdoc->last != to) {
1.100     kristaps  268:                /*
                    269:                 * Save the parent here, because we may delete the
1.119     schwarze  270:                 * mdoc->last node in the post-validation phase and reset
                    271:                 * it to mdoc->last->parent, causing a step in the closing
1.100     kristaps  272:                 * out to be lost.
                    273:                 */
                    274:                np = mdoc->last->parent;
1.149     schwarze  275:                mdoc_valid_post(mdoc);
1.99      kristaps  276:                n = mdoc->last;
1.100     kristaps  277:                mdoc->last = np;
1.1       kristaps  278:                assert(mdoc->last);
1.99      kristaps  279:                mdoc->last->last = n;
1.1       kristaps  280:        }
1.149     schwarze  281:        mdoc_valid_post(mdoc);
1.1       kristaps  282: }
                    283:
1.32      kristaps  284: /*
1.166     schwarze  285:  * Rewind up to a specific block, including all blocks that broke it.
                    286:  */
                    287: static void
1.189     schwarze  288: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.166     schwarze  289: {
                    290:
1.183     schwarze  291:        for (;;) {
                    292:                rew_last(mdoc, n);
                    293:
1.194     schwarze  294:                if (mdoc->last == n) {
                    295:                        switch (n->type) {
                    296:                        case ROFFT_HEAD:
                    297:                                roff_body_alloc(mdoc, n->line, n->pos,
                    298:                                    n->tok);
                    299:                                return;
                    300:                        case ROFFT_BLOCK:
                    301:                                break;
                    302:                        default:
                    303:                                return;
                    304:                        }
                    305:                        if ( ! (n->flags & MDOC_BROKEN))
                    306:                                return;
                    307:                } else
                    308:                        n = mdoc->last;
1.166     schwarze  309:
1.183     schwarze  310:                for (;;) {
                    311:                        if ((n = n->parent) == NULL)
                    312:                                return;
                    313:
1.184     schwarze  314:                        if (n->type == ROFFT_BLOCK ||
                    315:                            n->type == ROFFT_HEAD) {
1.183     schwarze  316:                                if (n->flags & MDOC_ENDED)
                    317:                                        break;
                    318:                                else
                    319:                                        return;
                    320:                        }
                    321:                }
1.166     schwarze  322:        }
                    323: }
                    324:
                    325: /*
1.84      schwarze  326:  * For a block closing macro, return the corresponding opening one.
                    327:  * Otherwise, return the macro itself.
1.32      kristaps  328:  */
1.185     schwarze  329: static int
                    330: rew_alt(int tok)
1.1       kristaps  331: {
                    332:        switch (tok) {
1.131     schwarze  333:        case MDOC_Ac:
1.1       kristaps  334:                return(MDOC_Ao);
1.131     schwarze  335:        case MDOC_Bc:
1.1       kristaps  336:                return(MDOC_Bo);
1.131     schwarze  337:        case MDOC_Brc:
1.1       kristaps  338:                return(MDOC_Bro);
1.131     schwarze  339:        case MDOC_Dc:
1.1       kristaps  340:                return(MDOC_Do);
1.131     schwarze  341:        case MDOC_Ec:
1.1       kristaps  342:                return(MDOC_Eo);
1.131     schwarze  343:        case MDOC_Ed:
1.1       kristaps  344:                return(MDOC_Bd);
1.131     schwarze  345:        case MDOC_Ef:
1.1       kristaps  346:                return(MDOC_Bf);
1.131     schwarze  347:        case MDOC_Ek:
1.1       kristaps  348:                return(MDOC_Bk);
1.131     schwarze  349:        case MDOC_El:
1.1       kristaps  350:                return(MDOC_Bl);
1.131     schwarze  351:        case MDOC_Fc:
1.1       kristaps  352:                return(MDOC_Fo);
1.131     schwarze  353:        case MDOC_Oc:
1.1       kristaps  354:                return(MDOC_Oo);
1.131     schwarze  355:        case MDOC_Pc:
1.1       kristaps  356:                return(MDOC_Po);
1.131     schwarze  357:        case MDOC_Qc:
1.1       kristaps  358:                return(MDOC_Qo);
1.131     schwarze  359:        case MDOC_Re:
1.1       kristaps  360:                return(MDOC_Rs);
1.131     schwarze  361:        case MDOC_Sc:
1.1       kristaps  362:                return(MDOC_So);
1.131     schwarze  363:        case MDOC_Xc:
1.1       kristaps  364:                return(MDOC_Xo);
                    365:        default:
1.84      schwarze  366:                return(tok);
1.1       kristaps  367:        }
                    368:        /* NOTREACHED */
                    369: }
                    370:
1.149     schwarze  371: static void
1.189     schwarze  372: rew_elem(struct roff_man *mdoc, int tok)
1.1       kristaps  373: {
1.185     schwarze  374:        struct roff_node *n;
1.1       kristaps  375:
                    376:        n = mdoc->last;
1.184     schwarze  377:        if (n->type != ROFFT_ELEM)
1.1       kristaps  378:                n = n->parent;
1.184     schwarze  379:        assert(n->type == ROFFT_ELEM);
1.1       kristaps  380:        assert(tok == n->tok);
1.149     schwarze  381:        rew_last(mdoc, n);
1.1       kristaps  382: }
                    383:
1.83      schwarze  384: /*
1.187     schwarze  385:  * If there is an open sub-block of the target requiring
                    386:  * explicit close-out, postpone closing out the target until
                    387:  * the rew_pending() call closing out the sub-block.
                    388:  */
                    389: static int
1.189     schwarze  390: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.187     schwarze  391:        struct roff_node *target)
                    392: {
                    393:        struct roff_node        *n;
                    394:        int                      irc;
                    395:
                    396:        irc = 0;
                    397:        for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
                    398:                if (n->flags & MDOC_ENDED) {
                    399:                        if ( ! (n->flags & MDOC_VALID))
                    400:                                n->flags |= MDOC_BROKEN;
                    401:                        continue;
                    402:                }
                    403:                if (n->type == ROFFT_BLOCK &&
                    404:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    405:                        irc = 1;
                    406:                        n->flags = MDOC_BROKEN;
                    407:                        if (target->type == ROFFT_HEAD)
                    408:                                target->flags = MDOC_ENDED;
                    409:                        else if ( ! (target->flags & MDOC_ENDED)) {
                    410:                                mandoc_vmsg(MANDOCERR_BLK_NEST,
                    411:                                    mdoc->parse, line, ppos,
                    412:                                    "%s breaks %s", mdoc_macronames[tok],
                    413:                                    mdoc_macronames[n->tok]);
                    414:                                mdoc_endbody_alloc(mdoc, line, ppos,
                    415:                                    tok, target, ENDBODY_NOSPACE);
                    416:                        }
                    417:                }
                    418:        }
                    419:        return(irc);
                    420: }
                    421:
                    422: /*
1.105     kristaps  423:  * Allocate a word and check whether it's punctuation or not.
                    424:  * Punctuation consists of those tokens found in mdoc_isdelim().
                    425:  */
1.150     schwarze  426: static void
1.189     schwarze  427: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123     schwarze  428:                enum mdelim d, int may_append)
1.105     kristaps  429: {
1.131     schwarze  430:
1.150     schwarze  431:        if (d == DELIM_MAX)
1.105     kristaps  432:                d = mdoc_isdelim(p);
                    433:
1.123     schwarze  434:        if (may_append &&
1.150     schwarze  435:            ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184     schwarze  436:            d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150     schwarze  437:            mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.192     schwarze  438:                roff_word_append(mdoc, p);
1.150     schwarze  439:                return;
1.123     schwarze  440:        }
                    441:
1.192     schwarze  442:        roff_word_alloc(mdoc, line, col, p);
1.105     kristaps  443:
1.108     schwarze  444:        /*
1.144     schwarze  445:         * If the word consists of a bare delimiter,
                    446:         * flag the new node accordingly,
                    447:         * unless doing so was vetoed by the invoking macro.
                    448:         * Always clear the veto, it is only valid for one word.
1.108     schwarze  449:         */
                    450:
1.144     schwarze  451:        if (d == DELIM_OPEN)
                    452:                mdoc->last->flags |= MDOC_DELIMO;
                    453:        else if (d == DELIM_CLOSE &&
                    454:            ! (mdoc->flags & MDOC_NODELIMC) &&
1.131     schwarze  455:            mdoc->last->parent->tok != MDOC_Fd)
1.119     schwarze  456:                mdoc->last->flags |= MDOC_DELIMC;
1.144     schwarze  457:        mdoc->flags &= ~MDOC_NODELIMC;
1.105     kristaps  458: }
1.1       kristaps  459:
1.150     schwarze  460: static void
1.189     schwarze  461: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1       kristaps  462: {
1.153     schwarze  463:        char            *p;
1.66      kristaps  464:        int              la;
1.1       kristaps  465:
1.150     schwarze  466:        if (buf[*pos] == '\0')
                    467:                return;
1.1       kristaps  468:
                    469:        for (;;) {
1.66      kristaps  470:                la = *pos;
1.191     schwarze  471:                if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
                    472:                    ARGS_EOLN)
1.1       kristaps  473:                        break;
1.123     schwarze  474:                dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66      kristaps  475:
                    476:                /*
                    477:                 * If we encounter end-of-sentence symbols, then trigger
                    478:                 * the double-space.
                    479:                 *
1.109     kristaps  480:                 * XXX: it's easy to allow this to propagate outward to
1.66      kristaps  481:                 * the last symbol, such that `. )' will cause the
                    482:                 * correct double-spacing.  However, (1) groff isn't
                    483:                 * smart enough to do this and (2) it would require
                    484:                 * knowing which symbols break this behaviour, for
1.109     kristaps  485:                 * example, `.  ;' shouldn't propagate the double-space.
1.66      kristaps  486:                 */
1.150     schwarze  487:
1.127     schwarze  488:                if (mandoc_eos(p, strlen(p)))
1.119     schwarze  489:                        mdoc->last->flags |= MDOC_EOS;
1.1       kristaps  490:        }
                    491: }
                    492:
                    493: /*
1.153     schwarze  494:  * Parse one word.
                    495:  * If it is a macro, call it and return 1.
                    496:  * Otherwise, allocate it and return 0.
                    497:  */
                    498: static int
                    499: macro_or_word(MACRO_PROT_ARGS, int parsed)
                    500: {
                    501:        char            *p;
1.185     schwarze  502:        int              ntok;
1.153     schwarze  503:
                    504:        p = buf + ppos;
1.191     schwarze  505:        ntok = TOKEN_NONE;
1.157     schwarze  506:        if (*p == '"')
1.153     schwarze  507:                p++;
1.157     schwarze  508:        else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155     schwarze  509:                ntok = lookup(mdoc, tok, line, ppos, p);
1.153     schwarze  510:
1.191     schwarze  511:        if (ntok == TOKEN_NONE) {
                    512:                dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.153     schwarze  513:                    mdoc_macros[tok].flags & MDOC_JOIN);
                    514:                return(0);
                    515:        } else {
                    516:                if (mdoc_macros[tok].fp == in_line_eoln)
                    517:                        rew_elem(mdoc, tok);
                    518:                mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.191     schwarze  519:                if (tok == TOKEN_NONE)
1.153     schwarze  520:                        append_delims(mdoc, line, pos, buf);
                    521:                return(1);
                    522:        }
                    523: }
                    524:
                    525: /*
1.131     schwarze  526:  * Close out block partial/full explicit.
1.1       kristaps  527:  */
1.151     schwarze  528: static void
1.1       kristaps  529: blk_exp_close(MACRO_PROT_ARGS)
                    530: {
1.185     schwarze  531:        struct roff_node *body;         /* Our own body. */
                    532:        struct roff_node *endbody;      /* Our own end marker. */
                    533:        struct roff_node *itblk;        /* An It block starting later. */
                    534:        struct roff_node *later;        /* A sub-block starting later. */
                    535:        struct roff_node *n;            /* Search back to our block. */
1.188     schwarze  536:        struct roff_node *target;       /* For find_pending(). */
1.83      schwarze  537:
1.188     schwarze  538:        int              j, lastarg, maxargs, nl, pending;
1.55      kristaps  539:        enum margserr    ac;
1.185     schwarze  540:        int              atok, ntok;
1.1       kristaps  541:        char            *p;
                    542:
1.119     schwarze  543:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  544:
1.1       kristaps  545:        switch (tok) {
1.131     schwarze  546:        case MDOC_Ec:
1.1       kristaps  547:                maxargs = 1;
                    548:                break;
1.131     schwarze  549:        case MDOC_Ek:
1.125     schwarze  550:                mdoc->flags &= ~MDOC_KEEP;
1.151     schwarze  551:                /* FALLTHROUGH */
1.1       kristaps  552:        default:
                    553:                maxargs = 0;
                    554:                break;
                    555:        }
                    556:
1.83      schwarze  557:        /*
                    558:         * Search backwards for beginnings of blocks,
                    559:         * both of our own and of pending sub-blocks.
                    560:         */
1.151     schwarze  561:
1.83      schwarze  562:        atok = rew_alt(tok);
1.171     schwarze  563:        body = endbody = itblk = later = NULL;
1.119     schwarze  564:        for (n = mdoc->last; n; n = n->parent) {
1.183     schwarze  565:                if (n->flags & MDOC_ENDED) {
                    566:                        if ( ! (n->flags & MDOC_VALID))
                    567:                                n->flags |= MDOC_BROKEN;
1.83      schwarze  568:                        continue;
1.183     schwarze  569:                }
1.83      schwarze  570:
                    571:                /* Remember the start of our own body. */
1.151     schwarze  572:
1.184     schwarze  573:                if (n->type == ROFFT_BODY && atok == n->tok) {
1.175     schwarze  574:                        if (n->end == ENDBODY_NOT)
1.83      schwarze  575:                                body = n;
                    576:                        continue;
                    577:                }
                    578:
1.184     schwarze  579:                if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83      schwarze  580:                        continue;
1.160     schwarze  581:
                    582:                if (n->tok == MDOC_It) {
1.171     schwarze  583:                        itblk = n;
1.160     schwarze  584:                        continue;
                    585:                }
                    586:
1.83      schwarze  587:                if (atok == n->tok) {
                    588:                        assert(body);
                    589:
                    590:                        /*
                    591:                         * Found the start of our own block.
                    592:                         * When there is no pending sub block,
                    593:                         * just proceed to closing out.
                    594:                         */
1.151     schwarze  595:
1.160     schwarze  596:                        if (later == NULL ||
1.171     schwarze  597:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  598:                                break;
                    599:
1.131     schwarze  600:                        /*
1.167     schwarze  601:                         * When there is a pending sub block, postpone
                    602:                         * closing out the current block until the
                    603:                         * rew_pending() closing out the sub-block.
1.83      schwarze  604:                         * Mark the place where the formatting - but not
                    605:                         * the scope - of the current block ends.
                    606:                         */
1.151     schwarze  607:
1.183     schwarze  608:                        mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
                    609:                            line, ppos, "%s breaks %s",
                    610:                            mdoc_macronames[atok],
                    611:                            mdoc_macronames[later->tok]);
                    612:
1.166     schwarze  613:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150     schwarze  614:                            atok, body, ENDBODY_SPACE);
1.151     schwarze  615:
1.183     schwarze  616:                        if (tok == MDOC_El)
                    617:                                itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
                    618:
1.151     schwarze  619:                        /*
                    620:                         * If a block closing macro taking arguments
                    621:                         * breaks another block, put the arguments
1.166     schwarze  622:                         * into the end marker.
1.151     schwarze  623:                         */
                    624:
1.166     schwarze  625:                        if (maxargs)
1.189     schwarze  626:                                mdoc->next = ROFF_NEXT_CHILD;
1.83      schwarze  627:                        break;
1.182     schwarze  628:                }
                    629:
                    630:                /* Explicit blocks close out description lines. */
                    631:
                    632:                if (n->tok == MDOC_Nd) {
                    633:                        rew_last(mdoc, n);
                    634:                        continue;
1.83      schwarze  635:                }
                    636:
1.183     schwarze  637:                /* Breaking an open sub block. */
1.151     schwarze  638:
1.183     schwarze  639:                n->flags |= MDOC_BROKEN;
                    640:                if (later == NULL)
1.83      schwarze  641:                        later = n;
                    642:        }
1.166     schwarze  643:
                    644:        if (body == NULL) {
                    645:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
                    646:                    line, ppos, mdoc_macronames[tok]);
1.196     schwarze  647:                if (later != NULL)
                    648:                        later->flags &= ~MDOC_BROKEN;
1.166     schwarze  649:                if (maxargs && endbody == NULL) {
                    650:                        /*
                    651:                         * Stray .Ec without previous .Eo:
                    652:                         * Break the output line, keep the arguments.
                    653:                         */
1.193     schwarze  654:                        roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.166     schwarze  655:                        rew_elem(mdoc, MDOC_br);
                    656:                }
                    657:        } else if (endbody == NULL) {
                    658:                rew_last(mdoc, body);
                    659:                if (maxargs)
                    660:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    661:        }
1.83      schwarze  662:
1.150     schwarze  663:        if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
                    664:                if (buf[*pos] != '\0')
1.136     schwarze  665:                        mandoc_vmsg(MANDOCERR_ARG_SKIP,
                    666:                            mdoc->parse, line, ppos,
                    667:                            "%s %s", mdoc_macronames[tok],
                    668:                            buf + *pos);
1.171     schwarze  669:                if (endbody == NULL && n != NULL)
1.167     schwarze  670:                        rew_pending(mdoc, n);
1.151     schwarze  671:                return;
1.1       kristaps  672:        }
                    673:
1.166     schwarze  674:        if (endbody != NULL)
                    675:                n = endbody;
1.197   ! schwarze  676:
        !           677:        ntok = TOKEN_NONE;
1.148     schwarze  678:        for (j = 0; ; j++) {
1.1       kristaps  679:                lastarg = *pos;
                    680:
1.186     schwarze  681:                if (j == maxargs && n != NULL)
                    682:                        rew_last(mdoc, n);
1.1       kristaps  683:
1.119     schwarze  684:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  685:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  686:                        break;
                    687:
1.191     schwarze  688:                ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.155     schwarze  689:                    lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  690:
1.191     schwarze  691:                if (ntok == TOKEN_NONE) {
1.150     schwarze  692:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
                    693:                            MDOC_JOIN & mdoc_macros[tok].flags);
1.54      kristaps  694:                        continue;
                    695:                }
1.1       kristaps  696:
1.186     schwarze  697:                if (n != NULL)
                    698:                        rew_last(mdoc, n);
1.122     schwarze  699:                mdoc->flags &= ~MDOC_NEWLINE;
1.151     schwarze  700:                mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  701:                break;
1.1       kristaps  702:        }
                    703:
1.188     schwarze  704:        if (n != NULL) {
1.197   ! schwarze  705:                if (ntok != TOKEN_NONE && n->flags & MDOC_BROKEN) {
1.188     schwarze  706:                        target = n;
                    707:                        do
                    708:                                target = target->parent;
                    709:                        while ( ! (target->flags & MDOC_ENDED));
                    710:                        pending = find_pending(mdoc, ntok, line, ppos,
                    711:                            target);
                    712:                } else
                    713:                        pending = 0;
                    714:                if ( ! pending)
                    715:                        rew_pending(mdoc, n);
                    716:        }
1.150     schwarze  717:        if (nl)
                    718:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  719: }
                    720:
1.151     schwarze  721: static void
1.1       kristaps  722: in_line(MACRO_PROT_ARGS)
                    723: {
1.144     schwarze  724:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.185     schwarze  725:        int              ntok;
1.55      kristaps  726:        enum margserr    ac;
1.67      schwarze  727:        enum mdelim      d;
1.53      kristaps  728:        struct mdoc_arg *arg;
                    729:        char            *p;
1.1       kristaps  730:
1.119     schwarze  731:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  732:
1.4       kristaps  733:        /*
                    734:         * Whether we allow ignored elements (those without content,
                    735:         * usually because of reserved words) to squeak by.
                    736:         */
1.45      kristaps  737:
1.4       kristaps  738:        switch (tok) {
1.131     schwarze  739:        case MDOC_An:
1.26      kristaps  740:                /* FALLTHROUGH */
1.131     schwarze  741:        case MDOC_Ar:
1.4       kristaps  742:                /* FALLTHROUGH */
1.131     schwarze  743:        case MDOC_Fl:
1.4       kristaps  744:                /* FALLTHROUGH */
1.131     schwarze  745:        case MDOC_Mt:
1.12      kristaps  746:                /* FALLTHROUGH */
1.131     schwarze  747:        case MDOC_Nm:
1.26      kristaps  748:                /* FALLTHROUGH */
1.131     schwarze  749:        case MDOC_Pa:
1.4       kristaps  750:                nc = 1;
                    751:                break;
                    752:        default:
                    753:                nc = 0;
                    754:                break;
                    755:        }
                    756:
1.152     schwarze  757:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  758:
1.144     schwarze  759:        d = DELIM_NONE;
                    760:        firstarg = 1;
1.142     schwarze  761:        mayopen = 1;
1.70      kristaps  762:        for (cnt = scope = 0;; ) {
1.1       kristaps  763:                la = *pos;
1.119     schwarze  764:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  765:
1.144     schwarze  766:                /*
                    767:                 * At the end of a macro line,
                    768:                 * opening delimiters do not suppress spacing.
                    769:                 */
                    770:
                    771:                if (ac == ARGS_EOLN) {
                    772:                        if (d == DELIM_OPEN)
                    773:                                mdoc->last->flags &= ~MDOC_DELIMO;
1.1       kristaps  774:                        break;
1.144     schwarze  775:                }
                    776:
                    777:                /*
                    778:                 * The rest of the macro line is only punctuation,
                    779:                 * to be handled by append_delims().
                    780:                 * If there were no other arguments,
                    781:                 * do not allow the first one to suppress spacing,
                    782:                 * even if it turns out to be a closing one.
                    783:                 */
                    784:
                    785:                if (ac == ARGS_PUNCT) {
1.176     schwarze  786:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  787:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  788:                        break;
1.144     schwarze  789:                }
1.1       kristaps  790:
1.145     schwarze  791:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.191     schwarze  792:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1       kristaps  793:
1.131     schwarze  794:                /*
1.4       kristaps  795:                 * In this case, we've located a submacro and must
                    796:                 * execute it.  Close out scope, if open.  If no
                    797:                 * elements have been generated, either create one (nc)
                    798:                 * or raise a warning.
                    799:                 */
1.1       kristaps  800:
1.191     schwarze  801:                if (ntok != TOKEN_NONE) {
1.149     schwarze  802:                        if (scope)
                    803:                                rew_elem(mdoc, tok);
1.150     schwarze  804:                        if (nc && ! cnt) {
                    805:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  806:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  807:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  808:                                mdoc_argv_free(arg);
1.135     schwarze  809:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    810:                                    mdoc->parse, line, ppos,
                    811:                                    mdoc_macronames[tok]);
1.7       kristaps  812:                        }
1.151     schwarze  813:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150     schwarze  814:                        if (nl)
                    815:                                append_delims(mdoc, line, pos, buf);
1.151     schwarze  816:                        return;
1.131     schwarze  817:                }
1.1       kristaps  818:
1.131     schwarze  819:                /*
1.4       kristaps  820:                 * Non-quote-enclosed punctuation.  Set up our scope, if
                    821:                 * a word; rewind the scope, if a delimiter; then append
1.131     schwarze  822:                 * the word.
1.4       kristaps  823:                 */
1.1       kristaps  824:
1.150     schwarze  825:                d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3       kristaps  826:
1.70      kristaps  827:                if (DELIM_NONE != d) {
                    828:                        /*
                    829:                         * If we encounter closing punctuation, no word
1.144     schwarze  830:                         * has been emitted, no scope is open, and we're
1.70      kristaps  831:                         * allowed to have an empty element, then start
1.142     schwarze  832:                         * a new scope.
1.70      kristaps  833:                         */
1.142     schwarze  834:                        if ((d == DELIM_CLOSE ||
                    835:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  836:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  837:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  838:                                scope = 1;
1.142     schwarze  839:                                cnt++;
1.150     schwarze  840:                                if (tok == MDOC_Nm)
1.142     schwarze  841:                                        mayopen = 0;
1.70      kristaps  842:                        }
                    843:                        /*
                    844:                         * Close out our scope, if one is open, before
                    845:                         * any punctuation.
                    846:                         */
1.149     schwarze  847:                        if (scope)
                    848:                                rew_elem(mdoc, tok);
1.70      kristaps  849:                        scope = 0;
1.145     schwarze  850:                        if (tok == MDOC_Fn)
                    851:                                mayopen = 0;
1.142     schwarze  852:                } else if (mayopen && !scope) {
1.150     schwarze  853:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  854:                        scope = 1;
1.142     schwarze  855:                        cnt++;
1.1       kristaps  856:                }
1.105     kristaps  857:
1.150     schwarze  858:                dword(mdoc, line, la, p, d,
                    859:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.39      kristaps  860:
                    861:                /*
1.144     schwarze  862:                 * If the first argument is a closing delimiter,
                    863:                 * do not suppress spacing before it.
                    864:                 */
                    865:
                    866:                if (firstarg && d == DELIM_CLOSE && !nc)
                    867:                        mdoc->last->flags &= ~MDOC_DELIMC;
                    868:                firstarg = 0;
                    869:
                    870:                /*
1.39      kristaps  871:                 * `Fl' macros have their scope re-opened with each new
                    872:                 * word so that the `-' can be added to each one without
                    873:                 * having to parse out spaces.
                    874:                 */
1.150     schwarze  875:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  876:                        rew_elem(mdoc, tok);
1.70      kristaps  877:                        scope = 0;
1.39      kristaps  878:                }
1.1       kristaps  879:        }
                    880:
1.149     schwarze  881:        if (scope)
                    882:                rew_elem(mdoc, tok);
1.4       kristaps  883:
                    884:        /*
                    885:         * If no elements have been collected and we're allowed to have
                    886:         * empties (nc), open a scope and close it out.  Otherwise,
                    887:         * raise a warning.
                    888:         */
1.45      kristaps  889:
1.150     schwarze  890:        if ( ! cnt) {
                    891:                if (nc) {
                    892:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    893:                        rew_last(mdoc, mdoc->last);
                    894:                } else {
                    895:                        mdoc_argv_free(arg);
                    896:                        mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    897:                            line, ppos, mdoc_macronames[tok]);
                    898:                }
1.7       kristaps  899:        }
1.150     schwarze  900:        if (nl)
                    901:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  902: }
                    903:
1.151     schwarze  904: static void
1.1       kristaps  905: blk_full(MACRO_PROT_ARGS)
                    906: {
1.153     schwarze  907:        int               la, nl, parsed;
1.1       kristaps  908:        struct mdoc_arg  *arg;
1.185     schwarze  909:        struct roff_node *blk; /* Our own or a broken block. */
                    910:        struct roff_node *head; /* Our own head. */
                    911:        struct roff_node *body; /* Our own body. */
                    912:        struct roff_node *n;
1.59      kristaps  913:        enum margserr     ac, lac;
1.1       kristaps  914:        char             *p;
                    915:
1.119     schwarze  916:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  917:
1.177     schwarze  918:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    919:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    920:                    line, ppos, mdoc_macronames[tok]);
                    921:                return;
                    922:        }
                    923:
1.171     schwarze  924:        if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
                    925:
                    926:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    927:
                    928:                blk = NULL;
                    929:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze  930:                        if (n->flags & MDOC_ENDED) {
                    931:                                if ( ! (n->flags & MDOC_VALID))
                    932:                                        n->flags |= MDOC_BROKEN;
                    933:                                continue;
                    934:                        }
1.184     schwarze  935:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  936:                                continue;
1.183     schwarze  937:
1.171     schwarze  938:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    939:                                if (blk != NULL) {
                    940:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    941:                                            mdoc->parse, line, ppos,
                    942:                                            "It breaks %s",
                    943:                                            mdoc_macronames[blk->tok]);
                    944:                                        rew_pending(mdoc, blk);
                    945:                                }
                    946:                                break;
                    947:                        }
                    948:
                    949:                        if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    950:                                switch (tok) {
                    951:                                case MDOC_Sh:
                    952:                                        /* FALLTHROUGH */
                    953:                                case MDOC_Ss:
                    954:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    955:                                            mdoc->parse, line, ppos,
                    956:                                            "%s breaks %s",
                    957:                                            mdoc_macronames[tok],
                    958:                                            mdoc_macronames[n->tok]);
                    959:                                        rew_pending(mdoc, n);
1.180     schwarze  960:                                        n = mdoc->last;
1.171     schwarze  961:                                        continue;
                    962:                                case MDOC_It:
                    963:                                        /* Delay in case it's astray. */
                    964:                                        blk = n;
                    965:                                        continue;
                    966:                                default:
                    967:                                        break;
                    968:                                }
                    969:                                break;
                    970:                        }
                    971:
                    972:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze  973:
1.171     schwarze  974:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                    975:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                    976:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze  977:                                break;
1.171     schwarze  978:
                    979:                        /* Item breaking an explicit block. */
                    980:
                    981:                        if (blk != NULL) {
                    982:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    983:                                    mdoc->parse, line, ppos,
                    984:                                    "It breaks %s",
                    985:                                    mdoc_macronames[blk->tok]);
                    986:                                rew_pending(mdoc, blk);
1.172     schwarze  987:                                blk = NULL;
1.171     schwarze  988:                        }
                    989:
                    990:                        /* Close out prior implicit scopes. */
                    991:
                    992:                        rew_last(mdoc, n);
                    993:                }
                    994:
                    995:                /* Skip items outside lists. */
                    996:
                    997:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138     schwarze  998:                        mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
                    999:                            line, ppos, "It %s", buf + *pos);
1.193     schwarze 1000:                        roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.149     schwarze 1001:                        rew_elem(mdoc, MDOC_br);
1.151     schwarze 1002:                        return;
1.138     schwarze 1003:                }
1.1       kristaps 1004:        }
                   1005:
1.45      kristaps 1006:        /*
1.109     kristaps 1007:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps 1008:         * macro openings.  Implicit ones first close out prior scope
                   1009:         * (seen above).  Delay opening the head until necessary to
                   1010:         * allow leading punctuation to print.  Special consideration
                   1011:         * for `It -column', which has phrase-part syntax instead of
                   1012:         * regular child nodes.
                   1013:         */
                   1014:
1.152     schwarze 1015:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze 1016:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps 1017:        head = body = NULL;
1.115     schwarze 1018:
                   1019:        /*
                   1020:         * Exception: Heads of `It' macros in `-diag' lists are not
                   1021:         * parsed, even though `It' macros in general are parsed.
                   1022:         */
1.151     schwarze 1023:
1.153     schwarze 1024:        parsed = tok != MDOC_It ||
                   1025:            mdoc->last->parent->tok != MDOC_Bl ||
                   1026:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps 1027:
1.45      kristaps 1028:        /*
                   1029:         * The `Nd' macro has all arguments in its body: it's a hybrid
                   1030:         * of block partial-explicit and full-implicit.  Stupid.
                   1031:         */
1.19      kristaps 1032:
1.150     schwarze 1033:        if (tok == MDOC_Nd) {
1.190     schwarze 1034:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze 1035:                rew_last(mdoc, head);
1.190     schwarze 1036:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze 1037:        }
                   1038:
1.150     schwarze 1039:        if (tok == MDOC_Bk)
1.123     schwarze 1040:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps 1041:
1.150     schwarze 1042:        ac = ARGS_PEND;
                   1043:        for (;;) {
1.45      kristaps 1044:                la = *pos;
1.150     schwarze 1045:                lac = ac;
1.119     schwarze 1046:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1047:                if (ac == ARGS_EOLN) {
                   1048:                        if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75      kristaps 1049:                                break;
                   1050:                        /*
                   1051:                         * This is necessary: if the last token on a
                   1052:                         * line is a `Ta' or tab, then we'll get
                   1053:                         * ARGS_EOLN, so we must be smart enough to
                   1054:                         * reopen our scope if the last parse was a
                   1055:                         * phrase or partial phrase.
                   1056:                         */
1.167     schwarze 1057:                        if (body != NULL)
                   1058:                                rew_last(mdoc, body);
1.190     schwarze 1059:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1060:                        break;
1.75      kristaps 1061:                }
1.174     schwarze 1062:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
                   1063:                        mandoc_vmsg(MANDOCERR_ARG_EXCESS,
                   1064:                            mdoc->parse, line, la, "%s ... %s",
                   1065:                            mdoc_macronames[tok], buf + la);
                   1066:                        break;
                   1067:                }
1.173     schwarze 1068:                if (tok == MDOC_Rs) {
                   1069:                        mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
                   1070:                            line, la, "Rs %s", buf + la);
                   1071:                        break;
                   1072:                }
                   1073:                if (ac == ARGS_PUNCT)
                   1074:                        break;
1.45      kristaps 1075:
1.131     schwarze 1076:                /*
1.73      kristaps 1077:                 * Emit leading punctuation (i.e., punctuation before
1.184     schwarze 1078:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1079:                 */
1.45      kristaps 1080:
1.150     schwarze 1081:                if (head == NULL &&
                   1082:                    ac != ARGS_PEND &&
                   1083:                    ac != ARGS_PHRASE &&
                   1084:                    ac != ARGS_PPHRASE &&
                   1085:                    ac != ARGS_QWORD &&
                   1086:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1087:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1088:                        continue;
                   1089:                }
                   1090:
1.74      kristaps 1091:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1092:
1.150     schwarze 1093:                if (head == NULL)
1.190     schwarze 1094:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1095:
1.150     schwarze 1096:                if (ac == ARGS_PHRASE ||
                   1097:                    ac == ARGS_PEND ||
                   1098:                    ac == ARGS_PPHRASE) {
1.151     schwarze 1099:
1.73      kristaps 1100:                        /*
1.74      kristaps 1101:                         * If we haven't opened a body yet, rewind the
                   1102:                         * head; if we have, rewind that instead.
                   1103:                         */
                   1104:
1.167     schwarze 1105:                        rew_last(mdoc, body == NULL ? head : body);
1.190     schwarze 1106:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1107:
                   1108:                        /*
1.73      kristaps 1109:                         * Process phrases: set whether we're in a
                   1110:                         * partial-phrase (this effects line handling)
                   1111:                         * then call down into the phrase parser.
                   1112:                         */
1.74      kristaps 1113:
1.150     schwarze 1114:                        if (ac == ARGS_PPHRASE)
1.119     schwarze 1115:                                mdoc->flags |= MDOC_PPHRASE;
1.150     schwarze 1116:                        if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119     schwarze 1117:                                mdoc->flags |= MDOC_PPHRASE;
1.191     schwarze 1118:                        parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.119     schwarze 1119:                        mdoc->flags &= ~MDOC_PPHRASE;
1.1       kristaps 1120:                        continue;
                   1121:                }
                   1122:
1.153     schwarze 1123:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1124:                        break;
1.45      kristaps 1125:        }
1.1       kristaps 1126:
1.165     schwarze 1127:        if (blk->flags & MDOC_VALID)
                   1128:                return;
1.150     schwarze 1129:        if (head == NULL)
1.190     schwarze 1130:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1131:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1132:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1133:        if (body != NULL)
1.77      kristaps 1134:                goto out;
1.187     schwarze 1135:        if (find_pending(mdoc, tok, line, ppos, head))
1.183     schwarze 1136:                return;
1.47      kristaps 1137:
1.45      kristaps 1138:        /* Close out scopes to remain in a consistent state. */
                   1139:
1.167     schwarze 1140:        rew_last(mdoc, head);
1.190     schwarze 1141:        body = roff_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1142: out:
1.150     schwarze 1143:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1144:                rew_last(mdoc, body);
                   1145:                rew_last(mdoc, blk);
1.150     schwarze 1146:                mdoc->flags &= ~MDOC_FREECOL;
                   1147:        }
1.1       kristaps 1148: }
                   1149:
1.151     schwarze 1150: static void
1.1       kristaps 1151: blk_part_imp(MACRO_PROT_ARGS)
                   1152: {
1.63      kristaps 1153:        int               la, nl;
1.55      kristaps 1154:        enum margserr     ac;
1.1       kristaps 1155:        char             *p;
1.185     schwarze 1156:        struct roff_node *blk; /* saved block context */
                   1157:        struct roff_node *body; /* saved body context */
                   1158:        struct roff_node *n;
1.1       kristaps 1159:
1.119     schwarze 1160:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1161:
1.43      kristaps 1162:        /*
                   1163:         * A macro that spans to the end of the line.  This is generally
                   1164:         * (but not necessarily) called as the first macro.  The block
                   1165:         * has a head as the immediate child, which is always empty,
                   1166:         * followed by zero or more opening punctuation nodes, then the
                   1167:         * body (which may be empty, depending on the macro), then zero
                   1168:         * or more closing punctuation nodes.
                   1169:         */
1.32      kristaps 1170:
1.150     schwarze 1171:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190     schwarze 1172:        rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1173:
1.43      kristaps 1174:        /*
                   1175:         * Open the body scope "on-demand", that is, after we've
                   1176:         * processed all our the leading delimiters (open parenthesis,
                   1177:         * etc.).
                   1178:         */
1.1       kristaps 1179:
1.43      kristaps 1180:        for (body = NULL; ; ) {
1.32      kristaps 1181:                la = *pos;
1.119     schwarze 1182:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1183:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1184:                        break;
                   1185:
1.150     schwarze 1186:                if (body == NULL && ac != ARGS_QWORD &&
                   1187:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1188:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1189:                        continue;
1.123     schwarze 1190:                }
1.1       kristaps 1191:
1.150     schwarze 1192:                if (body == NULL)
1.190     schwarze 1193:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1194:
1.153     schwarze 1195:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1196:                        break;
1.1       kristaps 1197:        }
1.150     schwarze 1198:        if (body == NULL)
1.190     schwarze 1199:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1200:
1.187     schwarze 1201:        if (find_pending(mdoc, tok, line, ppos, body))
1.183     schwarze 1202:                return;
                   1203:
1.164     schwarze 1204:        rew_last(mdoc, body);
1.150     schwarze 1205:        if (nl)
                   1206:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1207:        rew_pending(mdoc, blk);
1.117     schwarze 1208:
                   1209:        /* Move trailing .Ns out of scope. */
                   1210:
                   1211:        for (n = body->child; n && n->next; n = n->next)
                   1212:                /* Do nothing. */ ;
1.150     schwarze 1213:        if (n && n->tok == MDOC_Ns)
1.119     schwarze 1214:                mdoc_node_relink(mdoc, n);
1.1       kristaps 1215: }
                   1216:
1.151     schwarze 1217: static void
1.1       kristaps 1218: blk_part_exp(MACRO_PROT_ARGS)
                   1219: {
1.60      kristaps 1220:        int               la, nl;
1.55      kristaps 1221:        enum margserr     ac;
1.185     schwarze 1222:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1223:        char             *p;
                   1224:
1.119     schwarze 1225:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1226:
1.43      kristaps 1227:        /*
                   1228:         * The opening of an explicit macro having zero or more leading
                   1229:         * punctuation nodes; a head with optional single element (the
                   1230:         * case of `Eo'); and a body that may be empty.
                   1231:         */
1.32      kristaps 1232:
1.193     schwarze 1233:        roff_block_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1234:        head = NULL;
                   1235:        for (;;) {
1.32      kristaps 1236:                la = *pos;
1.119     schwarze 1237:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1238:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1239:                        break;
1.43      kristaps 1240:
                   1241:                /* Flush out leading punctuation. */
                   1242:
1.150     schwarze 1243:                if (head == NULL && ac != ARGS_QWORD &&
                   1244:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1245:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1246:                        continue;
1.123     schwarze 1247:                }
1.43      kristaps 1248:
1.150     schwarze 1249:                if (head == NULL) {
1.190     schwarze 1250:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1251:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1252:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1253:                        rew_last(mdoc, head);
1.190     schwarze 1254:                        roff_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1255:                        if (tok == MDOC_Eo)
1.43      kristaps 1256:                                continue;
1.1       kristaps 1257:                }
1.43      kristaps 1258:
1.153     schwarze 1259:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1260:                        break;
1.1       kristaps 1261:        }
                   1262:
1.43      kristaps 1263:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1264:
1.163     schwarze 1265:        if (head == NULL) {
1.190     schwarze 1266:                rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
                   1267:                roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1268:        }
1.150     schwarze 1269:        if (nl)
                   1270:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1271: }
                   1272:
1.151     schwarze 1273: static void
1.1       kristaps 1274: in_line_argn(MACRO_PROT_ARGS)
                   1275: {
1.53      kristaps 1276:        struct mdoc_arg *arg;
                   1277:        char            *p;
1.181     schwarze 1278:        enum margserr    ac;
1.185     schwarze 1279:        int              ntok;
1.181     schwarze 1280:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1281:        int              la, maxargs, nl;
1.1       kristaps 1282:
1.156     schwarze 1283:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1284:
1.46      kristaps 1285:        /*
                   1286:         * A line macro that has a fixed number of arguments (maxargs).
                   1287:         * Only open the scope once the first non-leading-punctuation is
                   1288:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1289:         * keep it open until the maximum number of arguments are
                   1290:         * exhausted.
                   1291:         */
1.1       kristaps 1292:
                   1293:        switch (tok) {
1.131     schwarze 1294:        case MDOC_Ap:
1.1       kristaps 1295:                /* FALLTHROUGH */
1.131     schwarze 1296:        case MDOC_Ns:
1.1       kristaps 1297:                /* FALLTHROUGH */
1.131     schwarze 1298:        case MDOC_Ux:
1.1       kristaps 1299:                maxargs = 0;
                   1300:                break;
1.131     schwarze 1301:        case MDOC_Bx:
1.101     kristaps 1302:                /* FALLTHROUGH */
1.132     schwarze 1303:        case MDOC_Es:
                   1304:                /* FALLTHROUGH */
1.131     schwarze 1305:        case MDOC_Xr:
1.42      kristaps 1306:                maxargs = 2;
                   1307:                break;
1.1       kristaps 1308:        default:
                   1309:                maxargs = 1;
                   1310:                break;
                   1311:        }
                   1312:
1.152     schwarze 1313:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1314:
1.181     schwarze 1315:        state = -1;
1.156     schwarze 1316:        p = NULL;
                   1317:        for (;;) {
1.32      kristaps 1318:                la = *pos;
1.119     schwarze 1319:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1320:
                   1321:                if (ac == ARGS_WORD && state == -1 &&
                   1322:                    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
                   1323:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1324:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1325:                        continue;
                   1326:                }
                   1327:
                   1328:                if (state == -1 && tok != MDOC_In &&
                   1329:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1330:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1331:                        state = 0;
                   1332:                }
                   1333:
1.156     schwarze 1334:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1335:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1336:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1337:                                    mdoc->parse, line, ppos, "Pf %s",
                   1338:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1339:                        break;
1.156     schwarze 1340:                }
1.1       kristaps 1341:
1.181     schwarze 1342:                if (state == maxargs) {
1.149     schwarze 1343:                        rew_elem(mdoc, tok);
1.181     schwarze 1344:                        state = -2;
1.46      kristaps 1345:                }
                   1346:
1.181     schwarze 1347:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.191     schwarze 1348:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1349:
1.191     schwarze 1350:                if (ntok != TOKEN_NONE) {
1.181     schwarze 1351:                        if (state >= 0) {
1.149     schwarze 1352:                                rew_elem(mdoc, tok);
1.181     schwarze 1353:                                state = -2;
                   1354:                        }
1.151     schwarze 1355:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1       kristaps 1356:                        break;
                   1357:                }
                   1358:
1.181     schwarze 1359:                if (ac == ARGS_QWORD ||
                   1360:                    mdoc_macros[tok].flags & MDOC_IGNDELIM ||
                   1361:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1362:                        if (state == -1) {
                   1363:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1364:                                state = 1;
                   1365:                        } else if (state >= 0)
                   1366:                                state++;
                   1367:                } else if (state >= 0) {
1.149     schwarze 1368:                        rew_elem(mdoc, tok);
1.181     schwarze 1369:                        state = -2;
1.1       kristaps 1370:                }
1.42      kristaps 1371:
1.150     schwarze 1372:                dword(mdoc, line, la, p, DELIM_MAX,
                   1373:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.1       kristaps 1374:        }
                   1375:
1.181     schwarze 1376:        if (state == -1) {
                   1377:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                   1378:                    line, ppos, mdoc_macronames[tok]);
                   1379:                return;
1.156     schwarze 1380:        }
1.181     schwarze 1381:
                   1382:        if (state == 0 && tok == MDOC_Pf)
                   1383:                append_delims(mdoc, line, pos, buf);
                   1384:        if (state >= 0)
1.149     schwarze 1385:                rew_elem(mdoc, tok);
1.150     schwarze 1386:        if (nl)
                   1387:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1388: }
                   1389:
1.151     schwarze 1390: static void
1.1       kristaps 1391: in_line_eoln(MACRO_PROT_ARGS)
                   1392: {
1.185     schwarze 1393:        struct roff_node        *n;
1.170     schwarze 1394:        struct mdoc_arg         *arg;
1.1       kristaps 1395:
1.170     schwarze 1396:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1397:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1398:                n = mdoc->last;
1.189     schwarze 1399:                if (mdoc->next == ROFF_NEXT_SIBLING)
1.170     schwarze 1400:                        n = n->parent;
                   1401:                if (n->tok == MDOC_Nm)
                   1402:                        rew_last(mdoc, mdoc->last->parent);
1.178     schwarze 1403:        }
                   1404:
1.179     schwarze 1405:        if (buf[*pos] == '\0' &&
                   1406:            (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178     schwarze 1407:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179     schwarze 1408:                    line, ppos, mdoc_macronames[tok]);
1.178     schwarze 1409:                return;
1.170     schwarze 1410:        }
1.90      schwarze 1411:
1.152     schwarze 1412:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1413:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1414:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1415:                return;
                   1416:        rew_elem(mdoc, tok);
                   1417: }
                   1418:
                   1419: /*
                   1420:  * The simplest argument parser available: Parse the remaining
                   1421:  * words until the end of the phrase or line and return 0
                   1422:  * or until the next macro, call that macro, and return 1.
                   1423:  */
                   1424: static int
1.189     schwarze 1425: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154     schwarze 1426: {
                   1427:        int              la;
1.1       kristaps 1428:
                   1429:        for (;;) {
                   1430:                la = *pos;
1.153     schwarze 1431:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154     schwarze 1432:                        return(0);
1.153     schwarze 1433:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154     schwarze 1434:                        return(1);
1.1       kristaps 1435:        }
                   1436: }
                   1437:
1.151     schwarze 1438: static void
1.41      kristaps 1439: ctx_synopsis(MACRO_PROT_ARGS)
                   1440: {
1.60      kristaps 1441:
1.151     schwarze 1442:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1443:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1444:        else if (tok == MDOC_Nm)
                   1445:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1446:        else {
                   1447:                assert(tok == MDOC_Vt);
                   1448:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1449:        }
1.1       kristaps 1450: }
                   1451:
1.24      kristaps 1452: /*
                   1453:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1454:  * They're unusual because they're basically free-form text until a
                   1455:  * macro is encountered.
                   1456:  */
1.151     schwarze 1457: static void
1.75      kristaps 1458: phrase_ta(MACRO_PROT_ARGS)
                   1459: {
1.185     schwarze 1460:        struct roff_node *body, *n;
1.75      kristaps 1461:
1.121     schwarze 1462:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1463:
1.167     schwarze 1464:        body = NULL;
                   1465:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze 1466:                if (n->flags & MDOC_ENDED)
1.167     schwarze 1467:                        continue;
1.184     schwarze 1468:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1469:                        body = n;
                   1470:                if (n->tok == MDOC_Bl)
                   1471:                        break;
                   1472:        }
                   1473:
1.151     schwarze 1474:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1475:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1476:                    line, ppos, "Ta");
1.151     schwarze 1477:                return;
1.121     schwarze 1478:        }
1.75      kristaps 1479:
1.121     schwarze 1480:        /* Advance to the next column. */
1.150     schwarze 1481:
1.167     schwarze 1482:        rew_last(mdoc, body);
1.190     schwarze 1483:        roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191     schwarze 1484:        parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75      kristaps 1485: }

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