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Annotation of mandoc/mdoc_macro.c, Revision 1.184

1.184   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.183 2015/02/12 12:24:33 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"
1.1       kristaps   33: #include "libmdoc.h"
                     34:
1.151     schwarze   35: static void            blk_full(MACRO_PROT_ARGS);
                     36: static void            blk_exp_close(MACRO_PROT_ARGS);
                     37: static void            blk_part_exp(MACRO_PROT_ARGS);
                     38: static void            blk_part_imp(MACRO_PROT_ARGS);
                     39: static void            ctx_synopsis(MACRO_PROT_ARGS);
                     40: static void            in_line_eoln(MACRO_PROT_ARGS);
                     41: static void            in_line_argn(MACRO_PROT_ARGS);
                     42: static void            in_line(MACRO_PROT_ARGS);
                     43: static void            phrase_ta(MACRO_PROT_ARGS);
1.53      kristaps   44:
1.150     schwarze   45: static void            dword(struct mdoc *, int, int, const char *,
1.123     schwarze   46:                                 enum mdelim, int);
1.150     schwarze   47: static void            append_delims(struct mdoc *, int, int *, char *);
1.155     schwarze   48: static enum mdoct      lookup(struct mdoc *, enum mdoct,
                     49:                                int, int, const char *);
1.153     schwarze   50: static int             macro_or_word(MACRO_PROT_ARGS, int);
1.154     schwarze   51: static int             parse_rest(struct mdoc *, enum mdoct,
                     52:                                int, int *, char *);
1.131     schwarze   53: static enum mdoct      rew_alt(enum mdoct);
1.149     schwarze   54: static void            rew_elem(struct mdoc *, enum mdoct);
                     55: static void            rew_last(struct mdoc *, const struct mdoc_node *);
1.166     schwarze   56: static void            rew_pending(struct mdoc *, const struct mdoc_node *);
1.1       kristaps   57:
                     58: const  struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123     schwarze   59:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1       kristaps   60:        { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
                     61:        { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
                     62:        { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123     schwarze   63:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
                     64:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
                     65:        { in_line_eoln, 0 }, /* Pp */
                     66:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
                     67:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1       kristaps   68:        { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123     schwarze   69:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1       kristaps   70:        { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123     schwarze   71:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
                     72:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
                     73:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
                     74:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1       kristaps   75:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129     schwarze   76:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1       kristaps   77:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123     schwarze   78:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
                     79:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
                     80:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1       kristaps   81:        { in_line_eoln, 0 }, /* Ex */
1.123     schwarze   82:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
                     83:        { in_line_eoln, 0 }, /* Fd */
1.1       kristaps   84:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123     schwarze   85:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
                     86:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128     schwarze   87:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18      kristaps   88:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123     schwarze   89:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
                     90:        { blk_full, MDOC_JOIN }, /* Nd */
                     91:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1       kristaps   92:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132     schwarze   93:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1       kristaps   94:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
                     95:        { in_line_eoln, 0 }, /* Rv */
1.123     schwarze   96:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1       kristaps   97:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123     schwarze   98:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42      kristaps   99:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123     schwarze  100:        { in_line_eoln, MDOC_JOIN }, /* %A */
                    101:        { in_line_eoln, MDOC_JOIN }, /* %B */
                    102:        { in_line_eoln, MDOC_JOIN }, /* %D */
                    103:        { in_line_eoln, MDOC_JOIN }, /* %I */
                    104:        { in_line_eoln, MDOC_JOIN }, /* %J */
1.1       kristaps  105:        { in_line_eoln, 0 }, /* %N */
1.123     schwarze  106:        { in_line_eoln, MDOC_JOIN }, /* %O */
1.1       kristaps  107:        { in_line_eoln, 0 }, /* %P */
1.123     schwarze  108:        { in_line_eoln, MDOC_JOIN }, /* %R */
                    109:        { in_line_eoln, MDOC_JOIN }, /* %T */
1.1       kristaps  110:        { in_line_eoln, 0 }, /* %V */
1.123     schwarze  111:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    112:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
                    113:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    114:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
                    115:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1       kristaps  116:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123     schwarze  117:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    118:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
                    119:        { blk_full, MDOC_EXPLICIT }, /* Bf */
                    120:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    121:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
                    122:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1       kristaps  123:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
                    124:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
                    125:        { in_line_eoln, 0 }, /* Db */
1.123     schwarze  126:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    127:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
                    128:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    129:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
                    130:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
                    131:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
                    132:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
                    133:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1       kristaps  134:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
                    135:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11      kristaps  136:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144     schwarze  137:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123     schwarze  138:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
                    139:                        MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1       kristaps  140:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
                    141:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123     schwarze  142:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    143:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52      kristaps  144:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123     schwarze  145:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    146:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
                    147:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
                    148:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    149:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
                    150:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
                    151:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    152:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
                    153:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
                    154:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1       kristaps  155:        { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123     schwarze  156:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    157:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
                    158:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    159:                        MDOC_EXPLICIT | MDOC_JOIN }, /* So */
                    160:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147     schwarze  161:        { in_line_argn, 0 }, /* Sm */
1.123     schwarze  162:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
                    163:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1       kristaps  164:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123     schwarze  165:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1       kristaps  166:        { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
                    167:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123     schwarze  168:        { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
                    169:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    170:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
                    171:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    172:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
                    173:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    174:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1       kristaps  175:        { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123     schwarze  176:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1       kristaps  177:        { in_line_eoln, 0 }, /* Bt */
                    178:        { in_line_eoln, 0 }, /* Hf */
1.132     schwarze  179:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1       kristaps  180:        { in_line_eoln, 0 }, /* Ud */
1.69      kristaps  181:        { in_line, 0 }, /* Lb */
1.123     schwarze  182:        { in_line_eoln, 0 }, /* Lp */
                    183:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
                    184:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
                    185:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
                    186:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    187:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
                    188:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    189:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
                    190:        { in_line_eoln, MDOC_JOIN }, /* %C */
1.132     schwarze  191:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
                    192:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1       kristaps  193:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123     schwarze  194:        { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20      kristaps  195:        { in_line_eoln, 0 }, /* br */
                    196:        { in_line_eoln, 0 }, /* sp */
1.37      kristaps  197:        { in_line_eoln, 0 }, /* %U */
1.123     schwarze  198:        { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143     schwarze  199:        { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1       kristaps  200: };
                    201:
                    202: const  struct mdoc_macro * const mdoc_macros = __mdoc_macros;
                    203:
                    204:
                    205: /*
                    206:  * This is called at the end of parsing.  It must traverse up the tree,
                    207:  * closing out open [implicit] scopes.  Obviously, open explicit scopes
                    208:  * are errors.
                    209:  */
1.151     schwarze  210: void
1.119     schwarze  211: mdoc_macroend(struct mdoc *mdoc)
1.1       kristaps  212: {
                    213:        struct mdoc_node *n;
                    214:
                    215:        /* Scan for open explicit scopes. */
                    216:
1.151     schwarze  217:        n = mdoc->last->flags & MDOC_VALID ?
1.131     schwarze  218:            mdoc->last->parent : mdoc->last;
1.1       kristaps  219:
1.94      schwarze  220:        for ( ; n; n = n->parent)
1.184   ! schwarze  221:                if (n->type == ROFFT_BLOCK &&
1.151     schwarze  222:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137     schwarze  223:                        mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
                    224:                            n->line, n->pos, mdoc_macronames[n->tok]);
1.1       kristaps  225:
1.32      kristaps  226:        /* Rewind to the first. */
                    227:
1.149     schwarze  228:        rew_last(mdoc, mdoc->first);
1.1       kristaps  229: }
                    230:
1.32      kristaps  231: /*
1.153     schwarze  232:  * Look up the macro at *p called by "from",
                    233:  * or as a line macro if from == MDOC_MAX.
1.32      kristaps  234:  */
1.53      kristaps  235: static enum mdoct
1.155     schwarze  236: lookup(struct mdoc *mdoc, enum mdoct from, int line, int ppos, const char *p)
1.28      kristaps  237: {
1.58      kristaps  238:        enum mdoct       res;
1.1       kristaps  239:
1.153     schwarze  240:        if (from == MDOC_MAX || mdoc_macros[from].flags & MDOC_PARSED) {
                    241:                res = mdoc_hash_find(p);
1.155     schwarze  242:                if (res != MDOC_MAX) {
                    243:                        if (mdoc_macros[res].flags & MDOC_CALLABLE)
                    244:                                return(res);
                    245:                        if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
                    246:                                mandoc_msg(MANDOCERR_MACRO_CALL,
                    247:                                    mdoc->parse, line, ppos, p);
                    248:                }
1.153     schwarze  249:        }
1.1       kristaps  250:        return(MDOC_MAX);
                    251: }
                    252:
1.166     schwarze  253: /*
                    254:  * Rewind up to and including a specific node.
                    255:  */
1.149     schwarze  256: static void
1.32      kristaps  257: rew_last(struct mdoc *mdoc, const struct mdoc_node *to)
1.1       kristaps  258: {
1.100     kristaps  259:        struct mdoc_node *n, *np;
1.1       kristaps  260:
                    261:        assert(to);
                    262:        mdoc->next = MDOC_NEXT_SIBLING;
                    263:        while (mdoc->last != to) {
1.100     kristaps  264:                /*
                    265:                 * Save the parent here, because we may delete the
1.119     schwarze  266:                 * mdoc->last node in the post-validation phase and reset
                    267:                 * it to mdoc->last->parent, causing a step in the closing
1.100     kristaps  268:                 * out to be lost.
                    269:                 */
                    270:                np = mdoc->last->parent;
1.149     schwarze  271:                mdoc_valid_post(mdoc);
1.99      kristaps  272:                n = mdoc->last;
1.100     kristaps  273:                mdoc->last = np;
1.1       kristaps  274:                assert(mdoc->last);
1.99      kristaps  275:                mdoc->last->last = n;
1.1       kristaps  276:        }
1.149     schwarze  277:        mdoc_valid_post(mdoc);
1.1       kristaps  278: }
                    279:
1.32      kristaps  280: /*
1.166     schwarze  281:  * Rewind up to a specific block, including all blocks that broke it.
                    282:  */
                    283: static void
                    284: rew_pending(struct mdoc *mdoc, const struct mdoc_node *n)
                    285: {
                    286:
1.183     schwarze  287:        for (;;) {
                    288:                rew_last(mdoc, n);
                    289:
                    290:                switch (n->type) {
1.184   ! schwarze  291:                case ROFFT_HEAD:
1.183     schwarze  292:                        mdoc_body_alloc(mdoc, n->line, n->pos, n->tok);
                    293:                        return;
1.184   ! schwarze  294:                case ROFFT_BLOCK:
1.183     schwarze  295:                        break;
                    296:                default:
                    297:                        return;
                    298:                }
1.166     schwarze  299:
1.183     schwarze  300:                if ( ! (n->flags & MDOC_BROKEN))
                    301:                        return;
1.166     schwarze  302:
1.183     schwarze  303:                for (;;) {
                    304:                        if ((n = n->parent) == NULL)
                    305:                                return;
                    306:
1.184   ! schwarze  307:                        if (n->type == ROFFT_BLOCK ||
        !           308:                            n->type == ROFFT_HEAD) {
1.183     schwarze  309:                                if (n->flags & MDOC_ENDED)
                    310:                                        break;
                    311:                                else
                    312:                                        return;
                    313:                        }
                    314:                }
1.166     schwarze  315:        }
                    316: }
                    317:
                    318: /*
1.84      schwarze  319:  * For a block closing macro, return the corresponding opening one.
                    320:  * Otherwise, return the macro itself.
1.32      kristaps  321:  */
1.47      kristaps  322: static enum mdoct
                    323: rew_alt(enum mdoct tok)
1.1       kristaps  324: {
                    325:        switch (tok) {
1.131     schwarze  326:        case MDOC_Ac:
1.1       kristaps  327:                return(MDOC_Ao);
1.131     schwarze  328:        case MDOC_Bc:
1.1       kristaps  329:                return(MDOC_Bo);
1.131     schwarze  330:        case MDOC_Brc:
1.1       kristaps  331:                return(MDOC_Bro);
1.131     schwarze  332:        case MDOC_Dc:
1.1       kristaps  333:                return(MDOC_Do);
1.131     schwarze  334:        case MDOC_Ec:
1.1       kristaps  335:                return(MDOC_Eo);
1.131     schwarze  336:        case MDOC_Ed:
1.1       kristaps  337:                return(MDOC_Bd);
1.131     schwarze  338:        case MDOC_Ef:
1.1       kristaps  339:                return(MDOC_Bf);
1.131     schwarze  340:        case MDOC_Ek:
1.1       kristaps  341:                return(MDOC_Bk);
1.131     schwarze  342:        case MDOC_El:
1.1       kristaps  343:                return(MDOC_Bl);
1.131     schwarze  344:        case MDOC_Fc:
1.1       kristaps  345:                return(MDOC_Fo);
1.131     schwarze  346:        case MDOC_Oc:
1.1       kristaps  347:                return(MDOC_Oo);
1.131     schwarze  348:        case MDOC_Pc:
1.1       kristaps  349:                return(MDOC_Po);
1.131     schwarze  350:        case MDOC_Qc:
1.1       kristaps  351:                return(MDOC_Qo);
1.131     schwarze  352:        case MDOC_Re:
1.1       kristaps  353:                return(MDOC_Rs);
1.131     schwarze  354:        case MDOC_Sc:
1.1       kristaps  355:                return(MDOC_So);
1.131     schwarze  356:        case MDOC_Xc:
1.1       kristaps  357:                return(MDOC_Xo);
                    358:        default:
1.84      schwarze  359:                return(tok);
1.1       kristaps  360:        }
                    361:        /* NOTREACHED */
                    362: }
                    363:
1.149     schwarze  364: static void
1.47      kristaps  365: rew_elem(struct mdoc *mdoc, enum mdoct tok)
1.1       kristaps  366: {
                    367:        struct mdoc_node *n;
                    368:
                    369:        n = mdoc->last;
1.184   ! schwarze  370:        if (n->type != ROFFT_ELEM)
1.1       kristaps  371:                n = n->parent;
1.184   ! schwarze  372:        assert(n->type == ROFFT_ELEM);
1.1       kristaps  373:        assert(tok == n->tok);
1.149     schwarze  374:        rew_last(mdoc, n);
1.1       kristaps  375: }
                    376:
1.83      schwarze  377: /*
1.105     kristaps  378:  * Allocate a word and check whether it's punctuation or not.
                    379:  * Punctuation consists of those tokens found in mdoc_isdelim().
                    380:  */
1.150     schwarze  381: static void
1.123     schwarze  382: dword(struct mdoc *mdoc, int line, int col, const char *p,
                    383:                enum mdelim d, int may_append)
1.105     kristaps  384: {
1.131     schwarze  385:
1.150     schwarze  386:        if (d == DELIM_MAX)
1.105     kristaps  387:                d = mdoc_isdelim(p);
                    388:
1.123     schwarze  389:        if (may_append &&
1.150     schwarze  390:            ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184   ! schwarze  391:            d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150     schwarze  392:            mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.123     schwarze  393:                mdoc_word_append(mdoc, p);
1.150     schwarze  394:                return;
1.123     schwarze  395:        }
                    396:
1.150     schwarze  397:        mdoc_word_alloc(mdoc, line, col, p);
1.105     kristaps  398:
1.108     schwarze  399:        /*
1.144     schwarze  400:         * If the word consists of a bare delimiter,
                    401:         * flag the new node accordingly,
                    402:         * unless doing so was vetoed by the invoking macro.
                    403:         * Always clear the veto, it is only valid for one word.
1.108     schwarze  404:         */
                    405:
1.144     schwarze  406:        if (d == DELIM_OPEN)
                    407:                mdoc->last->flags |= MDOC_DELIMO;
                    408:        else if (d == DELIM_CLOSE &&
                    409:            ! (mdoc->flags & MDOC_NODELIMC) &&
1.131     schwarze  410:            mdoc->last->parent->tok != MDOC_Fd)
1.119     schwarze  411:                mdoc->last->flags |= MDOC_DELIMC;
1.144     schwarze  412:        mdoc->flags &= ~MDOC_NODELIMC;
1.105     kristaps  413: }
1.1       kristaps  414:
1.150     schwarze  415: static void
1.119     schwarze  416: append_delims(struct mdoc *mdoc, int line, int *pos, char *buf)
1.1       kristaps  417: {
1.153     schwarze  418:        char            *p;
1.66      kristaps  419:        int              la;
1.1       kristaps  420:
1.150     schwarze  421:        if (buf[*pos] == '\0')
                    422:                return;
1.1       kristaps  423:
                    424:        for (;;) {
1.66      kristaps  425:                la = *pos;
1.153     schwarze  426:                if (mdoc_args(mdoc, line, pos, buf, MDOC_MAX, &p) == ARGS_EOLN)
1.1       kristaps  427:                        break;
1.123     schwarze  428:                dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66      kristaps  429:
                    430:                /*
                    431:                 * If we encounter end-of-sentence symbols, then trigger
                    432:                 * the double-space.
                    433:                 *
1.109     kristaps  434:                 * XXX: it's easy to allow this to propagate outward to
1.66      kristaps  435:                 * the last symbol, such that `. )' will cause the
                    436:                 * correct double-spacing.  However, (1) groff isn't
                    437:                 * smart enough to do this and (2) it would require
                    438:                 * knowing which symbols break this behaviour, for
1.109     kristaps  439:                 * example, `.  ;' shouldn't propagate the double-space.
1.66      kristaps  440:                 */
1.150     schwarze  441:
1.127     schwarze  442:                if (mandoc_eos(p, strlen(p)))
1.119     schwarze  443:                        mdoc->last->flags |= MDOC_EOS;
1.1       kristaps  444:        }
                    445: }
                    446:
                    447: /*
1.153     schwarze  448:  * Parse one word.
                    449:  * If it is a macro, call it and return 1.
                    450:  * Otherwise, allocate it and return 0.
                    451:  */
                    452: static int
                    453: macro_or_word(MACRO_PROT_ARGS, int parsed)
                    454: {
                    455:        char            *p;
                    456:        enum mdoct       ntok;
                    457:
                    458:        p = buf + ppos;
                    459:        ntok = MDOC_MAX;
1.157     schwarze  460:        if (*p == '"')
1.153     schwarze  461:                p++;
1.157     schwarze  462:        else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155     schwarze  463:                ntok = lookup(mdoc, tok, line, ppos, p);
1.153     schwarze  464:
                    465:        if (ntok == MDOC_MAX) {
                    466:                dword(mdoc, line, ppos, p, DELIM_MAX, tok == MDOC_MAX ||
                    467:                    mdoc_macros[tok].flags & MDOC_JOIN);
                    468:                return(0);
                    469:        } else {
                    470:                if (mdoc_macros[tok].fp == in_line_eoln)
                    471:                        rew_elem(mdoc, tok);
                    472:                mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
                    473:                if (tok == MDOC_MAX)
                    474:                        append_delims(mdoc, line, pos, buf);
                    475:                return(1);
                    476:        }
                    477: }
                    478:
                    479: /*
1.131     schwarze  480:  * Close out block partial/full explicit.
1.1       kristaps  481:  */
1.151     schwarze  482: static void
1.1       kristaps  483: blk_exp_close(MACRO_PROT_ARGS)
                    484: {
1.83      schwarze  485:        struct mdoc_node *body;         /* Our own body. */
1.148     schwarze  486:        struct mdoc_node *endbody;      /* Our own end marker. */
1.171     schwarze  487:        struct mdoc_node *itblk;        /* An It block starting later. */
1.83      schwarze  488:        struct mdoc_node *later;        /* A sub-block starting later. */
1.166     schwarze  489:        struct mdoc_node *n;            /* Search back to our block. */
1.83      schwarze  490:
1.171     schwarze  491:        int              j, lastarg, maxargs, nl;
1.55      kristaps  492:        enum margserr    ac;
1.83      schwarze  493:        enum mdoct       atok, ntok;
1.1       kristaps  494:        char            *p;
                    495:
1.119     schwarze  496:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  497:
1.1       kristaps  498:        switch (tok) {
1.131     schwarze  499:        case MDOC_Ec:
1.1       kristaps  500:                maxargs = 1;
                    501:                break;
1.131     schwarze  502:        case MDOC_Ek:
1.125     schwarze  503:                mdoc->flags &= ~MDOC_KEEP;
1.151     schwarze  504:                /* FALLTHROUGH */
1.1       kristaps  505:        default:
                    506:                maxargs = 0;
                    507:                break;
                    508:        }
                    509:
1.83      schwarze  510:        /*
                    511:         * Search backwards for beginnings of blocks,
                    512:         * both of our own and of pending sub-blocks.
                    513:         */
1.151     schwarze  514:
1.83      schwarze  515:        atok = rew_alt(tok);
1.171     schwarze  516:        body = endbody = itblk = later = NULL;
1.119     schwarze  517:        for (n = mdoc->last; n; n = n->parent) {
1.183     schwarze  518:                if (n->flags & MDOC_ENDED) {
                    519:                        if ( ! (n->flags & MDOC_VALID))
                    520:                                n->flags |= MDOC_BROKEN;
1.83      schwarze  521:                        continue;
1.183     schwarze  522:                }
1.83      schwarze  523:
                    524:                /* Remember the start of our own body. */
1.151     schwarze  525:
1.184   ! schwarze  526:                if (n->type == ROFFT_BODY && atok == n->tok) {
1.175     schwarze  527:                        if (n->end == ENDBODY_NOT)
1.83      schwarze  528:                                body = n;
                    529:                        continue;
                    530:                }
                    531:
1.184   ! schwarze  532:                if (n->type != ROFFT_BLOCK || n->tok == MDOC_Nm)
1.83      schwarze  533:                        continue;
1.160     schwarze  534:
                    535:                if (n->tok == MDOC_It) {
1.171     schwarze  536:                        itblk = n;
1.160     schwarze  537:                        continue;
                    538:                }
                    539:
1.83      schwarze  540:                if (atok == n->tok) {
                    541:                        assert(body);
                    542:
                    543:                        /*
                    544:                         * Found the start of our own block.
                    545:                         * When there is no pending sub block,
                    546:                         * just proceed to closing out.
                    547:                         */
1.151     schwarze  548:
1.160     schwarze  549:                        if (later == NULL ||
1.171     schwarze  550:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  551:                                break;
                    552:
1.131     schwarze  553:                        /*
1.167     schwarze  554:                         * When there is a pending sub block, postpone
                    555:                         * closing out the current block until the
                    556:                         * rew_pending() closing out the sub-block.
1.83      schwarze  557:                         * Mark the place where the formatting - but not
                    558:                         * the scope - of the current block ends.
                    559:                         */
1.151     schwarze  560:
1.183     schwarze  561:                        mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
                    562:                            line, ppos, "%s breaks %s",
                    563:                            mdoc_macronames[atok],
                    564:                            mdoc_macronames[later->tok]);
                    565:
1.166     schwarze  566:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150     schwarze  567:                            atok, body, ENDBODY_SPACE);
1.151     schwarze  568:
1.183     schwarze  569:                        if (tok == MDOC_El)
                    570:                                itblk->flags |= MDOC_ENDED | MDOC_BROKEN;
                    571:
1.151     schwarze  572:                        /*
                    573:                         * If a block closing macro taking arguments
                    574:                         * breaks another block, put the arguments
1.166     schwarze  575:                         * into the end marker.
1.151     schwarze  576:                         */
                    577:
1.166     schwarze  578:                        if (maxargs)
1.148     schwarze  579:                                mdoc->next = MDOC_NEXT_CHILD;
1.83      schwarze  580:                        break;
1.182     schwarze  581:                }
                    582:
                    583:                /* Explicit blocks close out description lines. */
                    584:
                    585:                if (n->tok == MDOC_Nd) {
                    586:                        rew_last(mdoc, n);
                    587:                        continue;
1.83      schwarze  588:                }
                    589:
1.183     schwarze  590:                /* Breaking an open sub block. */
1.151     schwarze  591:
1.183     schwarze  592:                n->flags |= MDOC_BROKEN;
                    593:                if (later == NULL)
1.83      schwarze  594:                        later = n;
                    595:        }
1.166     schwarze  596:
                    597:        if (body == NULL) {
                    598:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
                    599:                    line, ppos, mdoc_macronames[tok]);
                    600:                if (maxargs && endbody == NULL) {
                    601:                        /*
                    602:                         * Stray .Ec without previous .Eo:
                    603:                         * Break the output line, keep the arguments.
                    604:                         */
                    605:                        mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
                    606:                        rew_elem(mdoc, MDOC_br);
                    607:                }
                    608:        } else if (endbody == NULL) {
                    609:                rew_last(mdoc, body);
                    610:                if (maxargs)
                    611:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    612:        }
1.83      schwarze  613:
1.150     schwarze  614:        if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
                    615:                if (buf[*pos] != '\0')
1.136     schwarze  616:                        mandoc_vmsg(MANDOCERR_ARG_SKIP,
                    617:                            mdoc->parse, line, ppos,
                    618:                            "%s %s", mdoc_macronames[tok],
                    619:                            buf + *pos);
1.171     schwarze  620:                if (endbody == NULL && n != NULL)
1.167     schwarze  621:                        rew_pending(mdoc, n);
1.151     schwarze  622:                return;
1.1       kristaps  623:        }
                    624:
1.166     schwarze  625:        if (endbody != NULL)
                    626:                n = endbody;
1.148     schwarze  627:        for (j = 0; ; j++) {
1.1       kristaps  628:                lastarg = *pos;
                    629:
1.166     schwarze  630:                if (j == maxargs && n != NULL) {
                    631:                        rew_pending(mdoc, n);
                    632:                        n = NULL;
1.1       kristaps  633:                }
                    634:
1.119     schwarze  635:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  636:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  637:                        break;
                    638:
1.155     schwarze  639:                ntok = ac == ARGS_QWORD ? MDOC_MAX :
                    640:                    lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  641:
1.150     schwarze  642:                if (ntok == MDOC_MAX) {
                    643:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
                    644:                            MDOC_JOIN & mdoc_macros[tok].flags);
1.54      kristaps  645:                        continue;
                    646:                }
1.1       kristaps  647:
1.166     schwarze  648:                if (n != NULL) {
                    649:                        rew_pending(mdoc, n);
                    650:                        n = NULL;
1.54      kristaps  651:                }
1.122     schwarze  652:                mdoc->flags &= ~MDOC_NEWLINE;
1.151     schwarze  653:                mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  654:                break;
1.1       kristaps  655:        }
                    656:
1.166     schwarze  657:        if (n != NULL)
                    658:                rew_pending(mdoc, n);
1.150     schwarze  659:        if (nl)
                    660:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  661: }
                    662:
1.151     schwarze  663: static void
1.1       kristaps  664: in_line(MACRO_PROT_ARGS)
                    665: {
1.144     schwarze  666:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.53      kristaps  667:        enum mdoct       ntok;
1.55      kristaps  668:        enum margserr    ac;
1.67      schwarze  669:        enum mdelim      d;
1.53      kristaps  670:        struct mdoc_arg *arg;
                    671:        char            *p;
1.1       kristaps  672:
1.119     schwarze  673:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  674:
1.4       kristaps  675:        /*
                    676:         * Whether we allow ignored elements (those without content,
                    677:         * usually because of reserved words) to squeak by.
                    678:         */
1.45      kristaps  679:
1.4       kristaps  680:        switch (tok) {
1.131     schwarze  681:        case MDOC_An:
1.26      kristaps  682:                /* FALLTHROUGH */
1.131     schwarze  683:        case MDOC_Ar:
1.4       kristaps  684:                /* FALLTHROUGH */
1.131     schwarze  685:        case MDOC_Fl:
1.4       kristaps  686:                /* FALLTHROUGH */
1.131     schwarze  687:        case MDOC_Mt:
1.12      kristaps  688:                /* FALLTHROUGH */
1.131     schwarze  689:        case MDOC_Nm:
1.26      kristaps  690:                /* FALLTHROUGH */
1.131     schwarze  691:        case MDOC_Pa:
1.4       kristaps  692:                nc = 1;
                    693:                break;
                    694:        default:
                    695:                nc = 0;
                    696:                break;
                    697:        }
                    698:
1.152     schwarze  699:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  700:
1.144     schwarze  701:        d = DELIM_NONE;
                    702:        firstarg = 1;
1.142     schwarze  703:        mayopen = 1;
1.70      kristaps  704:        for (cnt = scope = 0;; ) {
1.1       kristaps  705:                la = *pos;
1.119     schwarze  706:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  707:
1.144     schwarze  708:                /*
                    709:                 * At the end of a macro line,
                    710:                 * opening delimiters do not suppress spacing.
                    711:                 */
                    712:
                    713:                if (ac == ARGS_EOLN) {
                    714:                        if (d == DELIM_OPEN)
                    715:                                mdoc->last->flags &= ~MDOC_DELIMO;
1.1       kristaps  716:                        break;
1.144     schwarze  717:                }
                    718:
                    719:                /*
                    720:                 * The rest of the macro line is only punctuation,
                    721:                 * to be handled by append_delims().
                    722:                 * If there were no other arguments,
                    723:                 * do not allow the first one to suppress spacing,
                    724:                 * even if it turns out to be a closing one.
                    725:                 */
                    726:
                    727:                if (ac == ARGS_PUNCT) {
1.176     schwarze  728:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  729:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  730:                        break;
1.144     schwarze  731:                }
1.1       kristaps  732:
1.145     schwarze  733:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.155     schwarze  734:                    MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.1       kristaps  735:
1.131     schwarze  736:                /*
1.4       kristaps  737:                 * In this case, we've located a submacro and must
                    738:                 * execute it.  Close out scope, if open.  If no
                    739:                 * elements have been generated, either create one (nc)
                    740:                 * or raise a warning.
                    741:                 */
1.1       kristaps  742:
1.150     schwarze  743:                if (ntok != MDOC_MAX) {
1.149     schwarze  744:                        if (scope)
                    745:                                rew_elem(mdoc, tok);
1.150     schwarze  746:                        if (nc && ! cnt) {
                    747:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  748:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  749:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  750:                                mdoc_argv_free(arg);
1.135     schwarze  751:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    752:                                    mdoc->parse, line, ppos,
                    753:                                    mdoc_macronames[tok]);
1.7       kristaps  754:                        }
1.151     schwarze  755:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150     schwarze  756:                        if (nl)
                    757:                                append_delims(mdoc, line, pos, buf);
1.151     schwarze  758:                        return;
1.131     schwarze  759:                }
1.1       kristaps  760:
1.131     schwarze  761:                /*
1.4       kristaps  762:                 * Non-quote-enclosed punctuation.  Set up our scope, if
                    763:                 * a word; rewind the scope, if a delimiter; then append
1.131     schwarze  764:                 * the word.
1.4       kristaps  765:                 */
1.1       kristaps  766:
1.150     schwarze  767:                d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3       kristaps  768:
1.70      kristaps  769:                if (DELIM_NONE != d) {
                    770:                        /*
                    771:                         * If we encounter closing punctuation, no word
1.144     schwarze  772:                         * has been emitted, no scope is open, and we're
1.70      kristaps  773:                         * allowed to have an empty element, then start
1.142     schwarze  774:                         * a new scope.
1.70      kristaps  775:                         */
1.142     schwarze  776:                        if ((d == DELIM_CLOSE ||
                    777:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  778:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  779:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  780:                                scope = 1;
1.142     schwarze  781:                                cnt++;
1.150     schwarze  782:                                if (tok == MDOC_Nm)
1.142     schwarze  783:                                        mayopen = 0;
1.70      kristaps  784:                        }
                    785:                        /*
                    786:                         * Close out our scope, if one is open, before
                    787:                         * any punctuation.
                    788:                         */
1.149     schwarze  789:                        if (scope)
                    790:                                rew_elem(mdoc, tok);
1.70      kristaps  791:                        scope = 0;
1.145     schwarze  792:                        if (tok == MDOC_Fn)
                    793:                                mayopen = 0;
1.142     schwarze  794:                } else if (mayopen && !scope) {
1.150     schwarze  795:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  796:                        scope = 1;
1.142     schwarze  797:                        cnt++;
1.1       kristaps  798:                }
1.105     kristaps  799:
1.150     schwarze  800:                dword(mdoc, line, la, p, d,
                    801:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.39      kristaps  802:
                    803:                /*
1.144     schwarze  804:                 * If the first argument is a closing delimiter,
                    805:                 * do not suppress spacing before it.
                    806:                 */
                    807:
                    808:                if (firstarg && d == DELIM_CLOSE && !nc)
                    809:                        mdoc->last->flags &= ~MDOC_DELIMC;
                    810:                firstarg = 0;
                    811:
                    812:                /*
1.39      kristaps  813:                 * `Fl' macros have their scope re-opened with each new
                    814:                 * word so that the `-' can be added to each one without
                    815:                 * having to parse out spaces.
                    816:                 */
1.150     schwarze  817:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  818:                        rew_elem(mdoc, tok);
1.70      kristaps  819:                        scope = 0;
1.39      kristaps  820:                }
1.1       kristaps  821:        }
                    822:
1.149     schwarze  823:        if (scope)
                    824:                rew_elem(mdoc, tok);
1.4       kristaps  825:
                    826:        /*
                    827:         * If no elements have been collected and we're allowed to have
                    828:         * empties (nc), open a scope and close it out.  Otherwise,
                    829:         * raise a warning.
                    830:         */
1.45      kristaps  831:
1.150     schwarze  832:        if ( ! cnt) {
                    833:                if (nc) {
                    834:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    835:                        rew_last(mdoc, mdoc->last);
                    836:                } else {
                    837:                        mdoc_argv_free(arg);
                    838:                        mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    839:                            line, ppos, mdoc_macronames[tok]);
                    840:                }
1.7       kristaps  841:        }
1.150     schwarze  842:        if (nl)
                    843:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  844: }
                    845:
1.151     schwarze  846: static void
1.1       kristaps  847: blk_full(MACRO_PROT_ARGS)
                    848: {
1.153     schwarze  849:        int               la, nl, parsed;
1.1       kristaps  850:        struct mdoc_arg  *arg;
1.171     schwarze  851:        struct mdoc_node *blk; /* Our own or a broken block. */
1.165     schwarze  852:        struct mdoc_node *head; /* Our own head. */
                    853:        struct mdoc_node *body; /* Our own body. */
1.47      kristaps  854:        struct mdoc_node *n;
1.59      kristaps  855:        enum margserr     ac, lac;
1.1       kristaps  856:        char             *p;
                    857:
1.119     schwarze  858:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  859:
1.177     schwarze  860:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    861:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    862:                    line, ppos, mdoc_macronames[tok]);
                    863:                return;
                    864:        }
                    865:
1.171     schwarze  866:        if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
                    867:
                    868:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    869:
                    870:                blk = NULL;
                    871:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze  872:                        if (n->flags & MDOC_ENDED) {
                    873:                                if ( ! (n->flags & MDOC_VALID))
                    874:                                        n->flags |= MDOC_BROKEN;
                    875:                                continue;
                    876:                        }
1.184   ! schwarze  877:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  878:                                continue;
1.183     schwarze  879:
1.171     schwarze  880:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    881:                                if (blk != NULL) {
                    882:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    883:                                            mdoc->parse, line, ppos,
                    884:                                            "It breaks %s",
                    885:                                            mdoc_macronames[blk->tok]);
                    886:                                        rew_pending(mdoc, blk);
                    887:                                }
                    888:                                break;
                    889:                        }
                    890:
                    891:                        if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    892:                                switch (tok) {
                    893:                                case MDOC_Sh:
                    894:                                        /* FALLTHROUGH */
                    895:                                case MDOC_Ss:
                    896:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    897:                                            mdoc->parse, line, ppos,
                    898:                                            "%s breaks %s",
                    899:                                            mdoc_macronames[tok],
                    900:                                            mdoc_macronames[n->tok]);
                    901:                                        rew_pending(mdoc, n);
1.180     schwarze  902:                                        n = mdoc->last;
1.171     schwarze  903:                                        continue;
                    904:                                case MDOC_It:
                    905:                                        /* Delay in case it's astray. */
                    906:                                        blk = n;
                    907:                                        continue;
                    908:                                default:
                    909:                                        break;
                    910:                                }
                    911:                                break;
                    912:                        }
                    913:
                    914:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze  915:
1.171     schwarze  916:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                    917:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                    918:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze  919:                                break;
1.171     schwarze  920:
                    921:                        /* Item breaking an explicit block. */
                    922:
                    923:                        if (blk != NULL) {
                    924:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    925:                                    mdoc->parse, line, ppos,
                    926:                                    "It breaks %s",
                    927:                                    mdoc_macronames[blk->tok]);
                    928:                                rew_pending(mdoc, blk);
1.172     schwarze  929:                                blk = NULL;
1.171     schwarze  930:                        }
                    931:
                    932:                        /* Close out prior implicit scopes. */
                    933:
                    934:                        rew_last(mdoc, n);
                    935:                }
                    936:
                    937:                /* Skip items outside lists. */
                    938:
                    939:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138     schwarze  940:                        mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
                    941:                            line, ppos, "It %s", buf + *pos);
1.150     schwarze  942:                        mdoc_elem_alloc(mdoc, line, ppos, MDOC_br, NULL);
1.149     schwarze  943:                        rew_elem(mdoc, MDOC_br);
1.151     schwarze  944:                        return;
1.138     schwarze  945:                }
1.1       kristaps  946:        }
                    947:
1.45      kristaps  948:        /*
1.109     kristaps  949:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps  950:         * macro openings.  Implicit ones first close out prior scope
                    951:         * (seen above).  Delay opening the head until necessary to
                    952:         * allow leading punctuation to print.  Special consideration
                    953:         * for `It -column', which has phrase-part syntax instead of
                    954:         * regular child nodes.
                    955:         */
                    956:
1.152     schwarze  957:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze  958:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps  959:        head = body = NULL;
1.115     schwarze  960:
                    961:        /*
                    962:         * Exception: Heads of `It' macros in `-diag' lists are not
                    963:         * parsed, even though `It' macros in general are parsed.
                    964:         */
1.151     schwarze  965:
1.153     schwarze  966:        parsed = tok != MDOC_It ||
                    967:            mdoc->last->parent->tok != MDOC_Bl ||
                    968:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps  969:
1.45      kristaps  970:        /*
                    971:         * The `Nd' macro has all arguments in its body: it's a hybrid
                    972:         * of block partial-explicit and full-implicit.  Stupid.
                    973:         */
1.19      kristaps  974:
1.150     schwarze  975:        if (tok == MDOC_Nd) {
                    976:                head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze  977:                rew_last(mdoc, head);
1.150     schwarze  978:                body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze  979:        }
                    980:
1.150     schwarze  981:        if (tok == MDOC_Bk)
1.123     schwarze  982:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps  983:
1.150     schwarze  984:        ac = ARGS_PEND;
                    985:        for (;;) {
1.45      kristaps  986:                la = *pos;
1.150     schwarze  987:                lac = ac;
1.119     schwarze  988:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  989:                if (ac == ARGS_EOLN) {
                    990:                        if (lac != ARGS_PPHRASE && lac != ARGS_PHRASE)
1.75      kristaps  991:                                break;
                    992:                        /*
                    993:                         * This is necessary: if the last token on a
                    994:                         * line is a `Ta' or tab, then we'll get
                    995:                         * ARGS_EOLN, so we must be smart enough to
                    996:                         * reopen our scope if the last parse was a
                    997:                         * phrase or partial phrase.
                    998:                         */
1.167     schwarze  999:                        if (body != NULL)
                   1000:                                rew_last(mdoc, body);
1.150     schwarze 1001:                        body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1002:                        break;
1.75      kristaps 1003:                }
1.174     schwarze 1004:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
                   1005:                        mandoc_vmsg(MANDOCERR_ARG_EXCESS,
                   1006:                            mdoc->parse, line, la, "%s ... %s",
                   1007:                            mdoc_macronames[tok], buf + la);
                   1008:                        break;
                   1009:                }
1.173     schwarze 1010:                if (tok == MDOC_Rs) {
                   1011:                        mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
                   1012:                            line, la, "Rs %s", buf + la);
                   1013:                        break;
                   1014:                }
                   1015:                if (ac == ARGS_PUNCT)
                   1016:                        break;
1.45      kristaps 1017:
1.131     schwarze 1018:                /*
1.73      kristaps 1019:                 * Emit leading punctuation (i.e., punctuation before
1.184   ! schwarze 1020:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1021:                 */
1.45      kristaps 1022:
1.150     schwarze 1023:                if (head == NULL &&
                   1024:                    ac != ARGS_PEND &&
                   1025:                    ac != ARGS_PHRASE &&
                   1026:                    ac != ARGS_PPHRASE &&
                   1027:                    ac != ARGS_QWORD &&
                   1028:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1029:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1030:                        continue;
                   1031:                }
                   1032:
1.74      kristaps 1033:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1034:
1.150     schwarze 1035:                if (head == NULL)
                   1036:                        head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1037:
1.150     schwarze 1038:                if (ac == ARGS_PHRASE ||
                   1039:                    ac == ARGS_PEND ||
                   1040:                    ac == ARGS_PPHRASE) {
1.151     schwarze 1041:
1.73      kristaps 1042:                        /*
1.74      kristaps 1043:                         * If we haven't opened a body yet, rewind the
                   1044:                         * head; if we have, rewind that instead.
                   1045:                         */
                   1046:
1.167     schwarze 1047:                        rew_last(mdoc, body == NULL ? head : body);
1.150     schwarze 1048:                        body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1049:
                   1050:                        /*
1.73      kristaps 1051:                         * Process phrases: set whether we're in a
                   1052:                         * partial-phrase (this effects line handling)
                   1053:                         * then call down into the phrase parser.
                   1054:                         */
1.74      kristaps 1055:
1.150     schwarze 1056:                        if (ac == ARGS_PPHRASE)
1.119     schwarze 1057:                                mdoc->flags |= MDOC_PPHRASE;
1.150     schwarze 1058:                        if (ac == ARGS_PEND && lac == ARGS_PPHRASE)
1.119     schwarze 1059:                                mdoc->flags |= MDOC_PPHRASE;
1.154     schwarze 1060:                        parse_rest(mdoc, MDOC_MAX, line, &la, buf);
1.119     schwarze 1061:                        mdoc->flags &= ~MDOC_PPHRASE;
1.1       kristaps 1062:                        continue;
                   1063:                }
                   1064:
1.153     schwarze 1065:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1066:                        break;
1.45      kristaps 1067:        }
1.1       kristaps 1068:
1.165     schwarze 1069:        if (blk->flags & MDOC_VALID)
                   1070:                return;
1.150     schwarze 1071:        if (head == NULL)
                   1072:                head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1073:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1074:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1075:        if (body != NULL)
1.77      kristaps 1076:                goto out;
1.19      kristaps 1077:
1.47      kristaps 1078:        /*
1.49      kristaps 1079:         * If there is an open (i.e., unvalidated) sub-block requiring
                   1080:         * explicit close-out, postpone switching the current block from
1.167     schwarze 1081:         * head to body until the rew_pending() call closing out that
1.49      kristaps 1082:         * sub-block.
1.47      kristaps 1083:         */
1.119     schwarze 1084:        for (n = mdoc->last; n && n != head; n = n->parent) {
1.183     schwarze 1085:                if (n->flags & MDOC_ENDED) {
                   1086:                        if ( ! (n->flags & MDOC_VALID))
                   1087:                                n->flags |= MDOC_BROKEN;
                   1088:                        continue;
                   1089:                }
1.184   ! schwarze 1090:                if (n->type == ROFFT_BLOCK &&
1.183     schwarze 1091:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                   1092:                        n->flags = MDOC_BROKEN;
                   1093:                        head->flags = MDOC_ENDED;
1.47      kristaps 1094:                }
                   1095:        }
1.183     schwarze 1096:        if (head->flags & MDOC_ENDED)
                   1097:                return;
1.47      kristaps 1098:
1.45      kristaps 1099:        /* Close out scopes to remain in a consistent state. */
                   1100:
1.167     schwarze 1101:        rew_last(mdoc, head);
                   1102:        body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1103: out:
1.150     schwarze 1104:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1105:                rew_last(mdoc, body);
                   1106:                rew_last(mdoc, blk);
1.150     schwarze 1107:                mdoc->flags &= ~MDOC_FREECOL;
                   1108:        }
1.1       kristaps 1109: }
                   1110:
1.151     schwarze 1111: static void
1.1       kristaps 1112: blk_part_imp(MACRO_PROT_ARGS)
                   1113: {
1.63      kristaps 1114:        int               la, nl;
1.55      kristaps 1115:        enum margserr     ac;
1.1       kristaps 1116:        char             *p;
1.43      kristaps 1117:        struct mdoc_node *blk; /* saved block context */
                   1118:        struct mdoc_node *body; /* saved body context */
                   1119:        struct mdoc_node *n;
1.1       kristaps 1120:
1.119     schwarze 1121:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1122:
1.43      kristaps 1123:        /*
                   1124:         * A macro that spans to the end of the line.  This is generally
                   1125:         * (but not necessarily) called as the first macro.  The block
                   1126:         * has a head as the immediate child, which is always empty,
                   1127:         * followed by zero or more opening punctuation nodes, then the
                   1128:         * body (which may be empty, depending on the macro), then zero
                   1129:         * or more closing punctuation nodes.
                   1130:         */
1.32      kristaps 1131:
1.150     schwarze 1132:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.162     schwarze 1133:        rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1134:
1.43      kristaps 1135:        /*
                   1136:         * Open the body scope "on-demand", that is, after we've
                   1137:         * processed all our the leading delimiters (open parenthesis,
                   1138:         * etc.).
                   1139:         */
1.1       kristaps 1140:
1.43      kristaps 1141:        for (body = NULL; ; ) {
1.32      kristaps 1142:                la = *pos;
1.119     schwarze 1143:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1144:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1145:                        break;
                   1146:
1.150     schwarze 1147:                if (body == NULL && ac != ARGS_QWORD &&
                   1148:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1149:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1150:                        continue;
1.123     schwarze 1151:                }
1.1       kristaps 1152:
1.150     schwarze 1153:                if (body == NULL)
                   1154:                        body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1155:
1.153     schwarze 1156:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1157:                        break;
1.1       kristaps 1158:        }
1.150     schwarze 1159:        if (body == NULL)
                   1160:                body = mdoc_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1161:
1.83      schwarze 1162:        /*
                   1163:         * If there is an open sub-block requiring explicit close-out,
1.167     schwarze 1164:         * postpone closing out the current block until the
                   1165:         * rew_pending() call closing out the sub-block.
1.83      schwarze 1166:         */
1.151     schwarze 1167:
1.119     schwarze 1168:        for (n = mdoc->last; n && n != body && n != blk->parent;
1.131     schwarze 1169:             n = n->parent) {
1.183     schwarze 1170:                if (n->flags & MDOC_ENDED) {
                   1171:                        if ( ! (n->flags & MDOC_VALID))
                   1172:                                n->flags |= MDOC_BROKEN;
                   1173:                        continue;
                   1174:                }
1.184   ! schwarze 1175:                if (n->type == ROFFT_BLOCK &&
1.183     schwarze 1176:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                   1177:                        n->flags |= MDOC_BROKEN;
                   1178:                        if ( ! (body->flags & MDOC_ENDED)) {
                   1179:                                mandoc_vmsg(MANDOCERR_BLK_NEST,
                   1180:                                    mdoc->parse, line, ppos,
                   1181:                                    "%s breaks %s", mdoc_macronames[tok],
                   1182:                                    mdoc_macronames[n->tok]);
                   1183:                                mdoc_endbody_alloc(mdoc, line, ppos,
                   1184:                                    tok, body, ENDBODY_NOSPACE);
                   1185:                        }
1.83      schwarze 1186:                }
                   1187:        }
1.134     schwarze 1188:        assert(n == body);
1.183     schwarze 1189:        if (body->flags & MDOC_ENDED)
                   1190:                return;
                   1191:
1.164     schwarze 1192:        rew_last(mdoc, body);
1.150     schwarze 1193:        if (nl)
                   1194:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1195:        rew_pending(mdoc, blk);
1.117     schwarze 1196:
                   1197:        /* Move trailing .Ns out of scope. */
                   1198:
                   1199:        for (n = body->child; n && n->next; n = n->next)
                   1200:                /* Do nothing. */ ;
1.150     schwarze 1201:        if (n && n->tok == MDOC_Ns)
1.119     schwarze 1202:                mdoc_node_relink(mdoc, n);
1.1       kristaps 1203: }
                   1204:
1.151     schwarze 1205: static void
1.1       kristaps 1206: blk_part_exp(MACRO_PROT_ARGS)
                   1207: {
1.60      kristaps 1208:        int               la, nl;
1.55      kristaps 1209:        enum margserr     ac;
1.43      kristaps 1210:        struct mdoc_node *head; /* keep track of head */
1.1       kristaps 1211:        char             *p;
                   1212:
1.119     schwarze 1213:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1214:
1.43      kristaps 1215:        /*
                   1216:         * The opening of an explicit macro having zero or more leading
                   1217:         * punctuation nodes; a head with optional single element (the
                   1218:         * case of `Eo'); and a body that may be empty.
                   1219:         */
1.32      kristaps 1220:
1.150     schwarze 1221:        mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.163     schwarze 1222:        head = NULL;
                   1223:        for (;;) {
1.32      kristaps 1224:                la = *pos;
1.119     schwarze 1225:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1226:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1227:                        break;
1.43      kristaps 1228:
                   1229:                /* Flush out leading punctuation. */
                   1230:
1.150     schwarze 1231:                if (head == NULL && ac != ARGS_QWORD &&
                   1232:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1233:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1234:                        continue;
1.123     schwarze 1235:                }
1.43      kristaps 1236:
1.150     schwarze 1237:                if (head == NULL) {
                   1238:                        head = mdoc_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1239:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1240:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1241:                        rew_last(mdoc, head);
                   1242:                        mdoc_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1243:                        if (tok == MDOC_Eo)
1.43      kristaps 1244:                                continue;
1.1       kristaps 1245:                }
1.43      kristaps 1246:
1.153     schwarze 1247:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1248:                        break;
1.1       kristaps 1249:        }
                   1250:
1.43      kristaps 1251:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1252:
1.163     schwarze 1253:        if (head == NULL) {
                   1254:                rew_last(mdoc, mdoc_head_alloc(mdoc, line, ppos, tok));
1.150     schwarze 1255:                mdoc_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1256:        }
1.150     schwarze 1257:        if (nl)
                   1258:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1259: }
                   1260:
1.151     schwarze 1261: static void
1.1       kristaps 1262: in_line_argn(MACRO_PROT_ARGS)
                   1263: {
1.53      kristaps 1264:        struct mdoc_arg *arg;
                   1265:        char            *p;
1.181     schwarze 1266:        enum margserr    ac;
1.53      kristaps 1267:        enum mdoct       ntok;
1.181     schwarze 1268:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1269:        int              la, maxargs, nl;
1.1       kristaps 1270:
1.156     schwarze 1271:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1272:
1.46      kristaps 1273:        /*
                   1274:         * A line macro that has a fixed number of arguments (maxargs).
                   1275:         * Only open the scope once the first non-leading-punctuation is
                   1276:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1277:         * keep it open until the maximum number of arguments are
                   1278:         * exhausted.
                   1279:         */
1.1       kristaps 1280:
                   1281:        switch (tok) {
1.131     schwarze 1282:        case MDOC_Ap:
1.1       kristaps 1283:                /* FALLTHROUGH */
1.131     schwarze 1284:        case MDOC_Ns:
1.1       kristaps 1285:                /* FALLTHROUGH */
1.131     schwarze 1286:        case MDOC_Ux:
1.1       kristaps 1287:                maxargs = 0;
                   1288:                break;
1.131     schwarze 1289:        case MDOC_Bx:
1.101     kristaps 1290:                /* FALLTHROUGH */
1.132     schwarze 1291:        case MDOC_Es:
                   1292:                /* FALLTHROUGH */
1.131     schwarze 1293:        case MDOC_Xr:
1.42      kristaps 1294:                maxargs = 2;
                   1295:                break;
1.1       kristaps 1296:        default:
                   1297:                maxargs = 1;
                   1298:                break;
                   1299:        }
                   1300:
1.152     schwarze 1301:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1302:
1.181     schwarze 1303:        state = -1;
1.156     schwarze 1304:        p = NULL;
                   1305:        for (;;) {
1.32      kristaps 1306:                la = *pos;
1.119     schwarze 1307:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1308:
                   1309:                if (ac == ARGS_WORD && state == -1 &&
                   1310:                    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
                   1311:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1312:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1313:                        continue;
                   1314:                }
                   1315:
                   1316:                if (state == -1 && tok != MDOC_In &&
                   1317:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1318:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1319:                        state = 0;
                   1320:                }
                   1321:
1.156     schwarze 1322:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1323:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1324:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1325:                                    mdoc->parse, line, ppos, "Pf %s",
                   1326:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1327:                        break;
1.156     schwarze 1328:                }
1.1       kristaps 1329:
1.181     schwarze 1330:                if (state == maxargs) {
1.149     schwarze 1331:                        rew_elem(mdoc, tok);
1.181     schwarze 1332:                        state = -2;
1.46      kristaps 1333:                }
                   1334:
1.181     schwarze 1335:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.156     schwarze 1336:                    MDOC_MAX : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1337:
1.150     schwarze 1338:                if (ntok != MDOC_MAX) {
1.181     schwarze 1339:                        if (state >= 0) {
1.149     schwarze 1340:                                rew_elem(mdoc, tok);
1.181     schwarze 1341:                                state = -2;
                   1342:                        }
1.151     schwarze 1343:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1       kristaps 1344:                        break;
                   1345:                }
                   1346:
1.181     schwarze 1347:                if (ac == ARGS_QWORD ||
                   1348:                    mdoc_macros[tok].flags & MDOC_IGNDELIM ||
                   1349:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1350:                        if (state == -1) {
                   1351:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1352:                                state = 1;
                   1353:                        } else if (state >= 0)
                   1354:                                state++;
                   1355:                } else if (state >= 0) {
1.149     schwarze 1356:                        rew_elem(mdoc, tok);
1.181     schwarze 1357:                        state = -2;
1.1       kristaps 1358:                }
1.42      kristaps 1359:
1.150     schwarze 1360:                dword(mdoc, line, la, p, DELIM_MAX,
                   1361:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.1       kristaps 1362:        }
                   1363:
1.181     schwarze 1364:        if (state == -1) {
                   1365:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                   1366:                    line, ppos, mdoc_macronames[tok]);
                   1367:                return;
1.156     schwarze 1368:        }
1.181     schwarze 1369:
                   1370:        if (state == 0 && tok == MDOC_Pf)
                   1371:                append_delims(mdoc, line, pos, buf);
                   1372:        if (state >= 0)
1.149     schwarze 1373:                rew_elem(mdoc, tok);
1.150     schwarze 1374:        if (nl)
                   1375:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1376: }
                   1377:
1.151     schwarze 1378: static void
1.1       kristaps 1379: in_line_eoln(MACRO_PROT_ARGS)
                   1380: {
1.170     schwarze 1381:        struct mdoc_node        *n;
                   1382:        struct mdoc_arg         *arg;
1.1       kristaps 1383:
1.170     schwarze 1384:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1385:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1386:                n = mdoc->last;
                   1387:                if (mdoc->next == MDOC_NEXT_SIBLING)
                   1388:                        n = n->parent;
                   1389:                if (n->tok == MDOC_Nm)
                   1390:                        rew_last(mdoc, mdoc->last->parent);
1.178     schwarze 1391:        }
                   1392:
1.179     schwarze 1393:        if (buf[*pos] == '\0' &&
                   1394:            (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178     schwarze 1395:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179     schwarze 1396:                    line, ppos, mdoc_macronames[tok]);
1.178     schwarze 1397:                return;
1.170     schwarze 1398:        }
1.90      schwarze 1399:
1.152     schwarze 1400:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1401:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1402:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1403:                return;
                   1404:        rew_elem(mdoc, tok);
                   1405: }
                   1406:
                   1407: /*
                   1408:  * The simplest argument parser available: Parse the remaining
                   1409:  * words until the end of the phrase or line and return 0
                   1410:  * or until the next macro, call that macro, and return 1.
                   1411:  */
                   1412: static int
                   1413: parse_rest(struct mdoc *mdoc, enum mdoct tok, int line, int *pos, char *buf)
                   1414: {
                   1415:        int              la;
1.1       kristaps 1416:
                   1417:        for (;;) {
                   1418:                la = *pos;
1.153     schwarze 1419:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.154     schwarze 1420:                        return(0);
1.153     schwarze 1421:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.154     schwarze 1422:                        return(1);
1.1       kristaps 1423:        }
                   1424: }
                   1425:
1.151     schwarze 1426: static void
1.41      kristaps 1427: ctx_synopsis(MACRO_PROT_ARGS)
                   1428: {
1.60      kristaps 1429:
1.151     schwarze 1430:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1431:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1432:        else if (tok == MDOC_Nm)
                   1433:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1434:        else {
                   1435:                assert(tok == MDOC_Vt);
                   1436:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1437:        }
1.1       kristaps 1438: }
                   1439:
1.24      kristaps 1440: /*
                   1441:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1442:  * They're unusual because they're basically free-form text until a
                   1443:  * macro is encountered.
                   1444:  */
1.151     schwarze 1445: static void
1.75      kristaps 1446: phrase_ta(MACRO_PROT_ARGS)
                   1447: {
1.167     schwarze 1448:        struct mdoc_node *body, *n;
1.75      kristaps 1449:
1.121     schwarze 1450:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1451:
1.167     schwarze 1452:        body = NULL;
                   1453:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.183     schwarze 1454:                if (n->flags & MDOC_ENDED)
1.167     schwarze 1455:                        continue;
1.184   ! schwarze 1456:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1457:                        body = n;
                   1458:                if (n->tok == MDOC_Bl)
                   1459:                        break;
                   1460:        }
                   1461:
1.151     schwarze 1462:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1463:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1464:                    line, ppos, "Ta");
1.151     schwarze 1465:                return;
1.121     schwarze 1466:        }
1.75      kristaps 1467:
1.121     schwarze 1468:        /* Advance to the next column. */
1.150     schwarze 1469:
1.167     schwarze 1470:        rew_last(mdoc, body);
1.150     schwarze 1471:        mdoc_body_alloc(mdoc, line, ppos, MDOC_It);
1.154     schwarze 1472:        parse_rest(mdoc, MDOC_MAX, line, pos, buf);
1.75      kristaps 1473: }

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