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Annotation of mandoc/mdoc_macro.c, Revision 1.196

1.196   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.195 2015/04/23 15:35:59 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;
1.148     schwarze  676:        for (j = 0; ; j++) {
1.1       kristaps  677:                lastarg = *pos;
                    678:
1.186     schwarze  679:                if (j == maxargs && n != NULL)
                    680:                        rew_last(mdoc, n);
1.1       kristaps  681:
1.119     schwarze  682:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  683:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  684:                        break;
                    685:
1.191     schwarze  686:                ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.155     schwarze  687:                    lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  688:
1.191     schwarze  689:                if (ntok == TOKEN_NONE) {
1.150     schwarze  690:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
                    691:                            MDOC_JOIN & mdoc_macros[tok].flags);
1.54      kristaps  692:                        continue;
                    693:                }
1.1       kristaps  694:
1.186     schwarze  695:                if (n != NULL)
                    696:                        rew_last(mdoc, n);
1.122     schwarze  697:                mdoc->flags &= ~MDOC_NEWLINE;
1.151     schwarze  698:                mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  699:                break;
1.1       kristaps  700:        }
                    701:
1.188     schwarze  702:        if (n != NULL) {
                    703:                if (n != mdoc->last && n->flags & MDOC_BROKEN) {
                    704:                        target = n;
                    705:                        do
                    706:                                target = target->parent;
                    707:                        while ( ! (target->flags & MDOC_ENDED));
                    708:                        pending = find_pending(mdoc, ntok, line, ppos,
                    709:                            target);
                    710:                } else
                    711:                        pending = 0;
                    712:                if ( ! pending)
                    713:                        rew_pending(mdoc, n);
                    714:        }
1.150     schwarze  715:        if (nl)
                    716:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  717: }
                    718:
1.151     schwarze  719: static void
1.1       kristaps  720: in_line(MACRO_PROT_ARGS)
                    721: {
1.144     schwarze  722:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.185     schwarze  723:        int              ntok;
1.55      kristaps  724:        enum margserr    ac;
1.67      schwarze  725:        enum mdelim      d;
1.53      kristaps  726:        struct mdoc_arg *arg;
                    727:        char            *p;
1.1       kristaps  728:
1.119     schwarze  729:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  730:
1.4       kristaps  731:        /*
                    732:         * Whether we allow ignored elements (those without content,
                    733:         * usually because of reserved words) to squeak by.
                    734:         */
1.45      kristaps  735:
1.4       kristaps  736:        switch (tok) {
1.131     schwarze  737:        case MDOC_An:
1.26      kristaps  738:                /* FALLTHROUGH */
1.131     schwarze  739:        case MDOC_Ar:
1.4       kristaps  740:                /* FALLTHROUGH */
1.131     schwarze  741:        case MDOC_Fl:
1.4       kristaps  742:                /* FALLTHROUGH */
1.131     schwarze  743:        case MDOC_Mt:
1.12      kristaps  744:                /* FALLTHROUGH */
1.131     schwarze  745:        case MDOC_Nm:
1.26      kristaps  746:                /* FALLTHROUGH */
1.131     schwarze  747:        case MDOC_Pa:
1.4       kristaps  748:                nc = 1;
                    749:                break;
                    750:        default:
                    751:                nc = 0;
                    752:                break;
                    753:        }
                    754:
1.152     schwarze  755:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  756:
1.144     schwarze  757:        d = DELIM_NONE;
                    758:        firstarg = 1;
1.142     schwarze  759:        mayopen = 1;
1.70      kristaps  760:        for (cnt = scope = 0;; ) {
1.1       kristaps  761:                la = *pos;
1.119     schwarze  762:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  763:
1.144     schwarze  764:                /*
                    765:                 * At the end of a macro line,
                    766:                 * opening delimiters do not suppress spacing.
                    767:                 */
                    768:
                    769:                if (ac == ARGS_EOLN) {
                    770:                        if (d == DELIM_OPEN)
                    771:                                mdoc->last->flags &= ~MDOC_DELIMO;
1.1       kristaps  772:                        break;
1.144     schwarze  773:                }
                    774:
                    775:                /*
                    776:                 * The rest of the macro line is only punctuation,
                    777:                 * to be handled by append_delims().
                    778:                 * If there were no other arguments,
                    779:                 * do not allow the first one to suppress spacing,
                    780:                 * even if it turns out to be a closing one.
                    781:                 */
                    782:
                    783:                if (ac == ARGS_PUNCT) {
1.176     schwarze  784:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  785:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  786:                        break;
1.144     schwarze  787:                }
1.1       kristaps  788:
1.145     schwarze  789:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.191     schwarze  790:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1       kristaps  791:
1.131     schwarze  792:                /*
1.4       kristaps  793:                 * In this case, we've located a submacro and must
                    794:                 * execute it.  Close out scope, if open.  If no
                    795:                 * elements have been generated, either create one (nc)
                    796:                 * or raise a warning.
                    797:                 */
1.1       kristaps  798:
1.191     schwarze  799:                if (ntok != TOKEN_NONE) {
1.149     schwarze  800:                        if (scope)
                    801:                                rew_elem(mdoc, tok);
1.150     schwarze  802:                        if (nc && ! cnt) {
                    803:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  804:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  805:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  806:                                mdoc_argv_free(arg);
1.135     schwarze  807:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    808:                                    mdoc->parse, line, ppos,
                    809:                                    mdoc_macronames[tok]);
1.7       kristaps  810:                        }
1.151     schwarze  811:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150     schwarze  812:                        if (nl)
                    813:                                append_delims(mdoc, line, pos, buf);
1.151     schwarze  814:                        return;
1.131     schwarze  815:                }
1.1       kristaps  816:
1.131     schwarze  817:                /*
1.4       kristaps  818:                 * Non-quote-enclosed punctuation.  Set up our scope, if
                    819:                 * a word; rewind the scope, if a delimiter; then append
1.131     schwarze  820:                 * the word.
1.4       kristaps  821:                 */
1.1       kristaps  822:
1.150     schwarze  823:                d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3       kristaps  824:
1.70      kristaps  825:                if (DELIM_NONE != d) {
                    826:                        /*
                    827:                         * If we encounter closing punctuation, no word
1.144     schwarze  828:                         * has been emitted, no scope is open, and we're
1.70      kristaps  829:                         * allowed to have an empty element, then start
1.142     schwarze  830:                         * a new scope.
1.70      kristaps  831:                         */
1.142     schwarze  832:                        if ((d == DELIM_CLOSE ||
                    833:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  834:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  835:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  836:                                scope = 1;
1.142     schwarze  837:                                cnt++;
1.150     schwarze  838:                                if (tok == MDOC_Nm)
1.142     schwarze  839:                                        mayopen = 0;
1.70      kristaps  840:                        }
                    841:                        /*
                    842:                         * Close out our scope, if one is open, before
                    843:                         * any punctuation.
                    844:                         */
1.149     schwarze  845:                        if (scope)
                    846:                                rew_elem(mdoc, tok);
1.70      kristaps  847:                        scope = 0;
1.145     schwarze  848:                        if (tok == MDOC_Fn)
                    849:                                mayopen = 0;
1.142     schwarze  850:                } else if (mayopen && !scope) {
1.150     schwarze  851:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  852:                        scope = 1;
1.142     schwarze  853:                        cnt++;
1.1       kristaps  854:                }
1.105     kristaps  855:
1.150     schwarze  856:                dword(mdoc, line, la, p, d,
                    857:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.39      kristaps  858:
                    859:                /*
1.144     schwarze  860:                 * If the first argument is a closing delimiter,
                    861:                 * do not suppress spacing before it.
                    862:                 */
                    863:
                    864:                if (firstarg && d == DELIM_CLOSE && !nc)
                    865:                        mdoc->last->flags &= ~MDOC_DELIMC;
                    866:                firstarg = 0;
                    867:
                    868:                /*
1.39      kristaps  869:                 * `Fl' macros have their scope re-opened with each new
                    870:                 * word so that the `-' can be added to each one without
                    871:                 * having to parse out spaces.
                    872:                 */
1.150     schwarze  873:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  874:                        rew_elem(mdoc, tok);
1.70      kristaps  875:                        scope = 0;
1.39      kristaps  876:                }
1.1       kristaps  877:        }
                    878:
1.149     schwarze  879:        if (scope)
                    880:                rew_elem(mdoc, tok);
1.4       kristaps  881:
                    882:        /*
                    883:         * If no elements have been collected and we're allowed to have
                    884:         * empties (nc), open a scope and close it out.  Otherwise,
                    885:         * raise a warning.
                    886:         */
1.45      kristaps  887:
1.150     schwarze  888:        if ( ! cnt) {
                    889:                if (nc) {
                    890:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    891:                        rew_last(mdoc, mdoc->last);
                    892:                } else {
                    893:                        mdoc_argv_free(arg);
                    894:                        mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    895:                            line, ppos, mdoc_macronames[tok]);
                    896:                }
1.7       kristaps  897:        }
1.150     schwarze  898:        if (nl)
                    899:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  900: }
                    901:
1.151     schwarze  902: static void
1.1       kristaps  903: blk_full(MACRO_PROT_ARGS)
                    904: {
1.153     schwarze  905:        int               la, nl, parsed;
1.1       kristaps  906:        struct mdoc_arg  *arg;
1.185     schwarze  907:        struct roff_node *blk; /* Our own or a broken block. */
                    908:        struct roff_node *head; /* Our own head. */
                    909:        struct roff_node *body; /* Our own body. */
                    910:        struct roff_node *n;
1.59      kristaps  911:        enum margserr     ac, lac;
1.1       kristaps  912:        char             *p;
                    913:
1.119     schwarze  914:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  915:
1.177     schwarze  916:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    917:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    918:                    line, ppos, mdoc_macronames[tok]);
                    919:                return;
                    920:        }
                    921:
1.171     schwarze  922:        if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
                    923:
                    924:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    925:
                    926:                blk = NULL;
                    927:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze  928:                        if (n->flags & MDOC_ENDED) {
                    929:                                if ( ! (n->flags & MDOC_VALID))
                    930:                                        n->flags |= MDOC_BROKEN;
                    931:                                continue;
                    932:                        }
1.184     schwarze  933:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  934:                                continue;
1.183     schwarze  935:
1.171     schwarze  936:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    937:                                if (blk != NULL) {
                    938:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    939:                                            mdoc->parse, line, ppos,
                    940:                                            "It breaks %s",
                    941:                                            mdoc_macronames[blk->tok]);
                    942:                                        rew_pending(mdoc, blk);
                    943:                                }
                    944:                                break;
                    945:                        }
                    946:
                    947:                        if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    948:                                switch (tok) {
                    949:                                case MDOC_Sh:
                    950:                                        /* FALLTHROUGH */
                    951:                                case MDOC_Ss:
                    952:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    953:                                            mdoc->parse, line, ppos,
                    954:                                            "%s breaks %s",
                    955:                                            mdoc_macronames[tok],
                    956:                                            mdoc_macronames[n->tok]);
                    957:                                        rew_pending(mdoc, n);
1.180     schwarze  958:                                        n = mdoc->last;
1.171     schwarze  959:                                        continue;
                    960:                                case MDOC_It:
                    961:                                        /* Delay in case it's astray. */
                    962:                                        blk = n;
                    963:                                        continue;
                    964:                                default:
                    965:                                        break;
                    966:                                }
                    967:                                break;
                    968:                        }
                    969:
                    970:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze  971:
1.171     schwarze  972:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                    973:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                    974:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze  975:                                break;
1.171     schwarze  976:
                    977:                        /* Item breaking an explicit block. */
                    978:
                    979:                        if (blk != NULL) {
                    980:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    981:                                    mdoc->parse, line, ppos,
                    982:                                    "It breaks %s",
                    983:                                    mdoc_macronames[blk->tok]);
                    984:                                rew_pending(mdoc, blk);
1.172     schwarze  985:                                blk = NULL;
1.171     schwarze  986:                        }
                    987:
                    988:                        /* Close out prior implicit scopes. */
                    989:
                    990:                        rew_last(mdoc, n);
                    991:                }
                    992:
                    993:                /* Skip items outside lists. */
                    994:
                    995:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138     schwarze  996:                        mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
                    997:                            line, ppos, "It %s", buf + *pos);
1.193     schwarze  998:                        roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.149     schwarze  999:                        rew_elem(mdoc, MDOC_br);
1.151     schwarze 1000:                        return;
1.138     schwarze 1001:                }
1.1       kristaps 1002:        }
                   1003:
1.45      kristaps 1004:        /*
1.109     kristaps 1005:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps 1006:         * macro openings.  Implicit ones first close out prior scope
                   1007:         * (seen above).  Delay opening the head until necessary to
                   1008:         * allow leading punctuation to print.  Special consideration
                   1009:         * for `It -column', which has phrase-part syntax instead of
                   1010:         * regular child nodes.
                   1011:         */
                   1012:
1.152     schwarze 1013:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze 1014:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps 1015:        head = body = NULL;
1.115     schwarze 1016:
                   1017:        /*
                   1018:         * Exception: Heads of `It' macros in `-diag' lists are not
                   1019:         * parsed, even though `It' macros in general are parsed.
                   1020:         */
1.151     schwarze 1021:
1.153     schwarze 1022:        parsed = tok != MDOC_It ||
                   1023:            mdoc->last->parent->tok != MDOC_Bl ||
                   1024:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps 1025:
1.45      kristaps 1026:        /*
                   1027:         * The `Nd' macro has all arguments in its body: it's a hybrid
                   1028:         * of block partial-explicit and full-implicit.  Stupid.
                   1029:         */
1.19      kristaps 1030:
1.150     schwarze 1031:        if (tok == MDOC_Nd) {
1.190     schwarze 1032:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze 1033:                rew_last(mdoc, head);
1.190     schwarze 1034:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze 1035:        }
                   1036:
1.150     schwarze 1037:        if (tok == MDOC_Bk)
1.123     schwarze 1038:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps 1039:
1.150     schwarze 1040:        ac = ARGS_PEND;
                   1041:        for (;;) {
1.45      kristaps 1042:                la = *pos;
1.150     schwarze 1043:                lac = ac;
1.119     schwarze 1044:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1045:                if (ac == ARGS_EOLN) {
                   1046:                        if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75      kristaps 1047:                                break;
                   1048:                        /*
                   1049:                         * This is necessary: if the last token on a
                   1050:                         * line is a `Ta' or tab, then we'll get
                   1051:                         * ARGS_EOLN, so we must be smart enough to
                   1052:                         * reopen our scope if the last parse was a
                   1053:                         * phrase or partial phrase.
                   1054:                         */
1.167     schwarze 1055:                        if (body != NULL)
                   1056:                                rew_last(mdoc, body);
1.190     schwarze 1057:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1058:                        break;
1.75      kristaps 1059:                }
1.174     schwarze 1060:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
                   1061:                        mandoc_vmsg(MANDOCERR_ARG_EXCESS,
                   1062:                            mdoc->parse, line, la, "%s ... %s",
                   1063:                            mdoc_macronames[tok], buf + la);
                   1064:                        break;
                   1065:                }
1.173     schwarze 1066:                if (tok == MDOC_Rs) {
                   1067:                        mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
                   1068:                            line, la, "Rs %s", buf + la);
                   1069:                        break;
                   1070:                }
                   1071:                if (ac == ARGS_PUNCT)
                   1072:                        break;
1.45      kristaps 1073:
1.131     schwarze 1074:                /*
1.73      kristaps 1075:                 * Emit leading punctuation (i.e., punctuation before
1.184     schwarze 1076:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1077:                 */
1.45      kristaps 1078:
1.150     schwarze 1079:                if (head == NULL &&
                   1080:                    ac != ARGS_PEND &&
                   1081:                    ac != ARGS_PHRASE &&
                   1082:                    ac != ARGS_PPHRASE &&
                   1083:                    ac != ARGS_QWORD &&
                   1084:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1085:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1086:                        continue;
                   1087:                }
                   1088:
1.74      kristaps 1089:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1090:
1.150     schwarze 1091:                if (head == NULL)
1.190     schwarze 1092:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1093:
1.150     schwarze 1094:                if (ac == ARGS_PHRASE ||
                   1095:                    ac == ARGS_PEND ||
                   1096:                    ac == ARGS_PPHRASE) {
1.151     schwarze 1097:
1.73      kristaps 1098:                        /*
1.74      kristaps 1099:                         * If we haven't opened a body yet, rewind the
                   1100:                         * head; if we have, rewind that instead.
                   1101:                         */
                   1102:
1.167     schwarze 1103:                        rew_last(mdoc, body == NULL ? head : body);
1.190     schwarze 1104:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1105:
                   1106:                        /*
1.73      kristaps 1107:                         * Process phrases: set whether we're in a
                   1108:                         * partial-phrase (this effects line handling)
                   1109:                         * then call down into the phrase parser.
                   1110:                         */
1.74      kristaps 1111:
1.150     schwarze 1112:                        if (ac == ARGS_PPHRASE)
1.119     schwarze 1113:                                mdoc->flags |= MDOC_PPHRASE;
1.150     schwarze 1114:                        if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119     schwarze 1115:                                mdoc->flags |= MDOC_PPHRASE;
1.191     schwarze 1116:                        parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.119     schwarze 1117:                        mdoc->flags &= ~MDOC_PPHRASE;
1.1       kristaps 1118:                        continue;
                   1119:                }
                   1120:
1.153     schwarze 1121:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1122:                        break;
1.45      kristaps 1123:        }
1.1       kristaps 1124:
1.165     schwarze 1125:        if (blk->flags & MDOC_VALID)
                   1126:                return;
1.150     schwarze 1127:        if (head == NULL)
1.190     schwarze 1128:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1129:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1130:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1131:        if (body != NULL)
1.77      kristaps 1132:                goto out;
1.187     schwarze 1133:        if (find_pending(mdoc, tok, line, ppos, head))
1.183     schwarze 1134:                return;
1.47      kristaps 1135:
1.45      kristaps 1136:        /* Close out scopes to remain in a consistent state. */
                   1137:
1.167     schwarze 1138:        rew_last(mdoc, head);
1.190     schwarze 1139:        body = roff_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1140: out:
1.150     schwarze 1141:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1142:                rew_last(mdoc, body);
                   1143:                rew_last(mdoc, blk);
1.150     schwarze 1144:                mdoc->flags &= ~MDOC_FREECOL;
                   1145:        }
1.1       kristaps 1146: }
                   1147:
1.151     schwarze 1148: static void
1.1       kristaps 1149: blk_part_imp(MACRO_PROT_ARGS)
                   1150: {
1.63      kristaps 1151:        int               la, nl;
1.55      kristaps 1152:        enum margserr     ac;
1.1       kristaps 1153:        char             *p;
1.185     schwarze 1154:        struct roff_node *blk; /* saved block context */
                   1155:        struct roff_node *body; /* saved body context */
                   1156:        struct roff_node *n;
1.1       kristaps 1157:
1.119     schwarze 1158:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1159:
1.43      kristaps 1160:        /*
                   1161:         * A macro that spans to the end of the line.  This is generally
                   1162:         * (but not necessarily) called as the first macro.  The block
                   1163:         * has a head as the immediate child, which is always empty,
                   1164:         * followed by zero or more opening punctuation nodes, then the
                   1165:         * body (which may be empty, depending on the macro), then zero
                   1166:         * or more closing punctuation nodes.
                   1167:         */
1.32      kristaps 1168:
1.150     schwarze 1169:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190     schwarze 1170:        rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1171:
1.43      kristaps 1172:        /*
                   1173:         * Open the body scope "on-demand", that is, after we've
                   1174:         * processed all our the leading delimiters (open parenthesis,
                   1175:         * etc.).
                   1176:         */
1.1       kristaps 1177:
1.43      kristaps 1178:        for (body = NULL; ; ) {
1.32      kristaps 1179:                la = *pos;
1.119     schwarze 1180:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1181:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1182:                        break;
                   1183:
1.150     schwarze 1184:                if (body == NULL && ac != ARGS_QWORD &&
                   1185:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1186:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1187:                        continue;
1.123     schwarze 1188:                }
1.1       kristaps 1189:
1.150     schwarze 1190:                if (body == NULL)
1.190     schwarze 1191:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1192:
1.153     schwarze 1193:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1194:                        break;
1.1       kristaps 1195:        }
1.150     schwarze 1196:        if (body == NULL)
1.190     schwarze 1197:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1198:
1.187     schwarze 1199:        if (find_pending(mdoc, tok, line, ppos, body))
1.183     schwarze 1200:                return;
                   1201:
1.164     schwarze 1202:        rew_last(mdoc, body);
1.150     schwarze 1203:        if (nl)
                   1204:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1205:        rew_pending(mdoc, blk);
1.117     schwarze 1206:
                   1207:        /* Move trailing .Ns out of scope. */
                   1208:
                   1209:        for (n = body->child; n && n->next; n = n->next)
                   1210:                /* Do nothing. */ ;
1.150     schwarze 1211:        if (n && n->tok == MDOC_Ns)
1.119     schwarze 1212:                mdoc_node_relink(mdoc, n);
1.1       kristaps 1213: }
                   1214:
1.151     schwarze 1215: static void
1.1       kristaps 1216: blk_part_exp(MACRO_PROT_ARGS)
                   1217: {
1.60      kristaps 1218:        int               la, nl;
1.55      kristaps 1219:        enum margserr     ac;
1.185     schwarze 1220:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1221:        char             *p;
                   1222:
1.119     schwarze 1223:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1224:
1.43      kristaps 1225:        /*
                   1226:         * The opening of an explicit macro having zero or more leading
                   1227:         * punctuation nodes; a head with optional single element (the
                   1228:         * case of `Eo'); and a body that may be empty.
                   1229:         */
1.32      kristaps 1230:
1.193     schwarze 1231:        roff_block_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1232:        head = NULL;
                   1233:        for (;;) {
1.32      kristaps 1234:                la = *pos;
1.119     schwarze 1235:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1236:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1237:                        break;
1.43      kristaps 1238:
                   1239:                /* Flush out leading punctuation. */
                   1240:
1.150     schwarze 1241:                if (head == NULL && ac != ARGS_QWORD &&
                   1242:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1243:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1244:                        continue;
1.123     schwarze 1245:                }
1.43      kristaps 1246:
1.150     schwarze 1247:                if (head == NULL) {
1.190     schwarze 1248:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1249:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1250:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1251:                        rew_last(mdoc, head);
1.190     schwarze 1252:                        roff_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1253:                        if (tok == MDOC_Eo)
1.43      kristaps 1254:                                continue;
1.1       kristaps 1255:                }
1.43      kristaps 1256:
1.153     schwarze 1257:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1258:                        break;
1.1       kristaps 1259:        }
                   1260:
1.43      kristaps 1261:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1262:
1.163     schwarze 1263:        if (head == NULL) {
1.190     schwarze 1264:                rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
                   1265:                roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1266:        }
1.150     schwarze 1267:        if (nl)
                   1268:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1269: }
                   1270:
1.151     schwarze 1271: static void
1.1       kristaps 1272: in_line_argn(MACRO_PROT_ARGS)
                   1273: {
1.53      kristaps 1274:        struct mdoc_arg *arg;
                   1275:        char            *p;
1.181     schwarze 1276:        enum margserr    ac;
1.185     schwarze 1277:        int              ntok;
1.181     schwarze 1278:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1279:        int              la, maxargs, nl;
1.1       kristaps 1280:
1.156     schwarze 1281:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1282:
1.46      kristaps 1283:        /*
                   1284:         * A line macro that has a fixed number of arguments (maxargs).
                   1285:         * Only open the scope once the first non-leading-punctuation is
                   1286:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1287:         * keep it open until the maximum number of arguments are
                   1288:         * exhausted.
                   1289:         */
1.1       kristaps 1290:
                   1291:        switch (tok) {
1.131     schwarze 1292:        case MDOC_Ap:
1.1       kristaps 1293:                /* FALLTHROUGH */
1.131     schwarze 1294:        case MDOC_Ns:
1.1       kristaps 1295:                /* FALLTHROUGH */
1.131     schwarze 1296:        case MDOC_Ux:
1.1       kristaps 1297:                maxargs = 0;
                   1298:                break;
1.131     schwarze 1299:        case MDOC_Bx:
1.101     kristaps 1300:                /* FALLTHROUGH */
1.132     schwarze 1301:        case MDOC_Es:
                   1302:                /* FALLTHROUGH */
1.131     schwarze 1303:        case MDOC_Xr:
1.42      kristaps 1304:                maxargs = 2;
                   1305:                break;
1.1       kristaps 1306:        default:
                   1307:                maxargs = 1;
                   1308:                break;
                   1309:        }
                   1310:
1.152     schwarze 1311:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1312:
1.181     schwarze 1313:        state = -1;
1.156     schwarze 1314:        p = NULL;
                   1315:        for (;;) {
1.32      kristaps 1316:                la = *pos;
1.119     schwarze 1317:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1318:
                   1319:                if (ac == ARGS_WORD && state == -1 &&
                   1320:                    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
                   1321:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1322:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1323:                        continue;
                   1324:                }
                   1325:
                   1326:                if (state == -1 && tok != MDOC_In &&
                   1327:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1328:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1329:                        state = 0;
                   1330:                }
                   1331:
1.156     schwarze 1332:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1333:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1334:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1335:                                    mdoc->parse, line, ppos, "Pf %s",
                   1336:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1337:                        break;
1.156     schwarze 1338:                }
1.1       kristaps 1339:
1.181     schwarze 1340:                if (state == maxargs) {
1.149     schwarze 1341:                        rew_elem(mdoc, tok);
1.181     schwarze 1342:                        state = -2;
1.46      kristaps 1343:                }
                   1344:
1.181     schwarze 1345:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.191     schwarze 1346:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1347:
1.191     schwarze 1348:                if (ntok != TOKEN_NONE) {
1.181     schwarze 1349:                        if (state >= 0) {
1.149     schwarze 1350:                                rew_elem(mdoc, tok);
1.181     schwarze 1351:                                state = -2;
                   1352:                        }
1.151     schwarze 1353:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1       kristaps 1354:                        break;
                   1355:                }
                   1356:
1.181     schwarze 1357:                if (ac == ARGS_QWORD ||
                   1358:                    mdoc_macros[tok].flags & MDOC_IGNDELIM ||
                   1359:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1360:                        if (state == -1) {
                   1361:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1362:                                state = 1;
                   1363:                        } else if (state >= 0)
                   1364:                                state++;
                   1365:                } else if (state >= 0) {
1.149     schwarze 1366:                        rew_elem(mdoc, tok);
1.181     schwarze 1367:                        state = -2;
1.1       kristaps 1368:                }
1.42      kristaps 1369:
1.150     schwarze 1370:                dword(mdoc, line, la, p, DELIM_MAX,
                   1371:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.1       kristaps 1372:        }
                   1373:
1.181     schwarze 1374:        if (state == -1) {
                   1375:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                   1376:                    line, ppos, mdoc_macronames[tok]);
                   1377:                return;
1.156     schwarze 1378:        }
1.181     schwarze 1379:
                   1380:        if (state == 0 && tok == MDOC_Pf)
                   1381:                append_delims(mdoc, line, pos, buf);
                   1382:        if (state >= 0)
1.149     schwarze 1383:                rew_elem(mdoc, tok);
1.150     schwarze 1384:        if (nl)
                   1385:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1386: }
                   1387:
1.151     schwarze 1388: static void
1.1       kristaps 1389: in_line_eoln(MACRO_PROT_ARGS)
                   1390: {
1.185     schwarze 1391:        struct roff_node        *n;
1.170     schwarze 1392:        struct mdoc_arg         *arg;
1.1       kristaps 1393:
1.170     schwarze 1394:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1395:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1396:                n = mdoc->last;
1.189     schwarze 1397:                if (mdoc->next == ROFF_NEXT_SIBLING)
1.170     schwarze 1398:                        n = n->parent;
                   1399:                if (n->tok == MDOC_Nm)
                   1400:                        rew_last(mdoc, mdoc->last->parent);
1.178     schwarze 1401:        }
                   1402:
1.179     schwarze 1403:        if (buf[*pos] == '\0' &&
                   1404:            (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178     schwarze 1405:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179     schwarze 1406:                    line, ppos, mdoc_macronames[tok]);
1.178     schwarze 1407:                return;
1.170     schwarze 1408:        }
1.90      schwarze 1409:
1.152     schwarze 1410:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1411:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1412:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1413:                return;
                   1414:        rew_elem(mdoc, tok);
                   1415: }
                   1416:
                   1417: /*
                   1418:  * The simplest argument parser available: Parse the remaining
                   1419:  * words until the end of the phrase or line and return 0
                   1420:  * or until the next macro, call that macro, and return 1.
                   1421:  */
                   1422: static int
1.189     schwarze 1423: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154     schwarze 1424: {
                   1425:        int              la;
1.1       kristaps 1426:
                   1427:        for (;;) {
                   1428:                la = *pos;
1.153     schwarze 1429:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154     schwarze 1430:                        return(0);
1.153     schwarze 1431:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154     schwarze 1432:                        return(1);
1.1       kristaps 1433:        }
                   1434: }
                   1435:
1.151     schwarze 1436: static void
1.41      kristaps 1437: ctx_synopsis(MACRO_PROT_ARGS)
                   1438: {
1.60      kristaps 1439:
1.151     schwarze 1440:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1441:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1442:        else if (tok == MDOC_Nm)
                   1443:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1444:        else {
                   1445:                assert(tok == MDOC_Vt);
                   1446:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1447:        }
1.1       kristaps 1448: }
                   1449:
1.24      kristaps 1450: /*
                   1451:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1452:  * They're unusual because they're basically free-form text until a
                   1453:  * macro is encountered.
                   1454:  */
1.151     schwarze 1455: static void
1.75      kristaps 1456: phrase_ta(MACRO_PROT_ARGS)
                   1457: {
1.185     schwarze 1458:        struct roff_node *body, *n;
1.75      kristaps 1459:
1.121     schwarze 1460:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1461:
1.167     schwarze 1462:        body = NULL;
                   1463:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze 1464:                if (n->flags & MDOC_ENDED)
1.167     schwarze 1465:                        continue;
1.184     schwarze 1466:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1467:                        body = n;
                   1468:                if (n->tok == MDOC_Bl)
                   1469:                        break;
                   1470:        }
                   1471:
1.151     schwarze 1472:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1473:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1474:                    line, ppos, "Ta");
1.151     schwarze 1475:                return;
1.121     schwarze 1476:        }
1.75      kristaps 1477:
1.121     schwarze 1478:        /* Advance to the next column. */
1.150     schwarze 1479:
1.167     schwarze 1480:        rew_last(mdoc, body);
1.190     schwarze 1481:        roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191     schwarze 1482:        parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75      kristaps 1483: }

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