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Annotation of mandoc/mdoc_macro.c, Revision 1.214

1.214   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.213 2017/02/11 13:24:12 schwarze Exp $ */
1.1       kristaps    2: /*
1.116     schwarze    3:  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.209     schwarze    4:  * Copyright (c) 2010, 2012-2016 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);
1.213     schwarze   53: static void            break_intermediate(struct roff_node *,
                     54:                            struct roff_node *);
1.189     schwarze   55: static int             parse_rest(struct roff_man *, int, int, int *, char *);
1.185     schwarze   56: static int             rew_alt(int);
1.189     schwarze   57: static void            rew_elem(struct roff_man *, int);
                     58: static void            rew_last(struct roff_man *, const struct roff_node *);
                     59: static void            rew_pending(struct roff_man *,
                     60:                                const struct roff_node *);
1.1       kristaps   61:
                     62: const  struct mdoc_macro __mdoc_macros[MDOC_MAX] = {
1.123     schwarze   63:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ap */
1.1       kristaps   64:        { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
                     65:        { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
                     66:        { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123     schwarze   67:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
                     68:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
                     69:        { in_line_eoln, 0 }, /* Pp */
                     70:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
                     71:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1       kristaps   72:        { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123     schwarze   73:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1       kristaps   74:        { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123     schwarze   75:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
                     76:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
                     77:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
                     78:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.1       kristaps   79:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129     schwarze   80:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1       kristaps   81:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123     schwarze   82:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
                     83:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
                     84:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1       kristaps   85:        { in_line_eoln, 0 }, /* Ex */
1.123     schwarze   86:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
                     87:        { in_line_eoln, 0 }, /* Fd */
1.1       kristaps   88:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123     schwarze   89:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
                     90:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128     schwarze   91:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18      kristaps   92:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123     schwarze   93:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
                     94:        { blk_full, MDOC_JOIN }, /* Nd */
                     95:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1       kristaps   96:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132     schwarze   97:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1       kristaps   98:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
                     99:        { in_line_eoln, 0 }, /* Rv */
1.123     schwarze  100:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1       kristaps  101:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123     schwarze  102:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42      kristaps  103:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123     schwarze  104:        { in_line_eoln, MDOC_JOIN }, /* %A */
                    105:        { in_line_eoln, MDOC_JOIN }, /* %B */
                    106:        { in_line_eoln, MDOC_JOIN }, /* %D */
                    107:        { in_line_eoln, MDOC_JOIN }, /* %I */
                    108:        { in_line_eoln, MDOC_JOIN }, /* %J */
1.1       kristaps  109:        { in_line_eoln, 0 }, /* %N */
1.123     schwarze  110:        { in_line_eoln, MDOC_JOIN }, /* %O */
1.1       kristaps  111:        { in_line_eoln, 0 }, /* %P */
1.123     schwarze  112:        { in_line_eoln, MDOC_JOIN }, /* %R */
                    113:        { in_line_eoln, MDOC_JOIN }, /* %T */
1.1       kristaps  114:        { in_line_eoln, 0 }, /* %V */
1.123     schwarze  115:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    116:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
                    117:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    118:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
                    119:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1       kristaps  120:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123     schwarze  121:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    122:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
                    123:        { blk_full, MDOC_EXPLICIT }, /* Bf */
                    124:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    125:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
                    126:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1       kristaps  127:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
                    128:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
                    129:        { in_line_eoln, 0 }, /* Db */
1.123     schwarze  130:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    131:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
                    132:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    133:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
                    134:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
                    135:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
                    136:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
                    137:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1       kristaps  138:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
                    139:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11      kristaps  140:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144     schwarze  141:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123     schwarze  142:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
                    143:                        MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1       kristaps  144:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
                    145:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123     schwarze  146:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    147:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52      kristaps  148:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123     schwarze  149:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    150:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
                    151:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
                    152:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    153:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
                    154:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
                    155:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    156:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
                    157:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
                    158:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1       kristaps  159:        { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123     schwarze  160:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    161:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
                    162:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    163:                        MDOC_EXPLICIT | MDOC_JOIN }, /* So */
                    164:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147     schwarze  165:        { in_line_argn, 0 }, /* Sm */
1.123     schwarze  166:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
                    167:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1       kristaps  168:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123     schwarze  169:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1       kristaps  170:        { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
                    171:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123     schwarze  172:        { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
                    173:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    174:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
                    175:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    176:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
                    177:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    178:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1       kristaps  179:        { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123     schwarze  180:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1       kristaps  181:        { in_line_eoln, 0 }, /* Bt */
                    182:        { in_line_eoln, 0 }, /* Hf */
1.132     schwarze  183:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1       kristaps  184:        { in_line_eoln, 0 }, /* Ud */
1.69      kristaps  185:        { in_line, 0 }, /* Lb */
1.123     schwarze  186:        { in_line_eoln, 0 }, /* Lp */
                    187:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
                    188:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
                    189:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
                    190:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    191:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
                    192:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    193:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
                    194:        { in_line_eoln, MDOC_JOIN }, /* %C */
1.132     schwarze  195:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
                    196:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1       kristaps  197:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123     schwarze  198:        { in_line_eoln, MDOC_JOIN }, /* %Q */
1.20      kristaps  199:        { in_line_eoln, 0 }, /* br */
                    200:        { in_line_eoln, 0 }, /* sp */
1.37      kristaps  201:        { in_line_eoln, 0 }, /* %U */
1.123     schwarze  202:        { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.143     schwarze  203:        { in_line_eoln, MDOC_PROLOGUE }, /* ll */
1.1       kristaps  204: };
                    205:
                    206: const  struct mdoc_macro * const mdoc_macros = __mdoc_macros;
                    207:
                    208:
                    209: /*
                    210:  * This is called at the end of parsing.  It must traverse up the tree,
                    211:  * closing out open [implicit] scopes.  Obviously, open explicit scopes
                    212:  * are errors.
                    213:  */
1.151     schwarze  214: void
1.195     schwarze  215: mdoc_endparse(struct roff_man *mdoc)
1.1       kristaps  216: {
1.185     schwarze  217:        struct roff_node *n;
1.1       kristaps  218:
                    219:        /* Scan for open explicit scopes. */
                    220:
1.210     schwarze  221:        n = mdoc->last->flags & NODE_VALID ?
1.131     schwarze  222:            mdoc->last->parent : mdoc->last;
1.1       kristaps  223:
1.94      schwarze  224:        for ( ; n; n = n->parent)
1.184     schwarze  225:                if (n->type == ROFFT_BLOCK &&
1.151     schwarze  226:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137     schwarze  227:                        mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
                    228:                            n->line, n->pos, mdoc_macronames[n->tok]);
1.1       kristaps  229:
1.32      kristaps  230:        /* Rewind to the first. */
                    231:
1.149     schwarze  232:        rew_last(mdoc, mdoc->first);
1.206     schwarze  233:        mdoc_state_reset(mdoc);
1.1       kristaps  234: }
                    235:
1.32      kristaps  236: /*
1.153     schwarze  237:  * Look up the macro at *p called by "from",
1.191     schwarze  238:  * or as a line macro if from == TOKEN_NONE.
1.32      kristaps  239:  */
1.185     schwarze  240: static int
1.189     schwarze  241: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.28      kristaps  242: {
1.185     schwarze  243:        int      res;
1.1       kristaps  244:
1.205     schwarze  245:        if (mdoc->flags & MDOC_PHRASEQF) {
                    246:                mdoc->flags &= ~MDOC_PHRASEQF;
                    247:                return TOKEN_NONE;
                    248:        }
1.191     schwarze  249:        if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.153     schwarze  250:                res = mdoc_hash_find(p);
1.191     schwarze  251:                if (res != TOKEN_NONE) {
1.155     schwarze  252:                        if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.202     schwarze  253:                                return res;
1.155     schwarze  254:                        if (res != MDOC_br && res != MDOC_sp && res != MDOC_ll)
                    255:                                mandoc_msg(MANDOCERR_MACRO_CALL,
                    256:                                    mdoc->parse, line, ppos, p);
                    257:                }
1.153     schwarze  258:        }
1.202     schwarze  259:        return TOKEN_NONE;
1.1       kristaps  260: }
                    261:
1.166     schwarze  262: /*
                    263:  * Rewind up to and including a specific node.
                    264:  */
1.149     schwarze  265: static void
1.189     schwarze  266: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1       kristaps  267: {
                    268:
1.210     schwarze  269:        if (to->flags & NODE_VALID)
1.186     schwarze  270:                return;
                    271:
1.1       kristaps  272:        while (mdoc->last != to) {
1.206     schwarze  273:                mdoc_state(mdoc, mdoc->last);
1.210     schwarze  274:                mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.206     schwarze  275:                mdoc->last = mdoc->last->parent;
1.1       kristaps  276:        }
1.206     schwarze  277:        mdoc_state(mdoc, mdoc->last);
1.210     schwarze  278:        mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.200     schwarze  279:        mdoc->next = ROFF_NEXT_SIBLING;
1.1       kristaps  280: }
                    281:
1.32      kristaps  282: /*
1.166     schwarze  283:  * Rewind up to a specific block, including all blocks that broke it.
                    284:  */
                    285: static void
1.189     schwarze  286: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.166     schwarze  287: {
                    288:
1.183     schwarze  289:        for (;;) {
                    290:                rew_last(mdoc, n);
                    291:
1.194     schwarze  292:                if (mdoc->last == n) {
                    293:                        switch (n->type) {
                    294:                        case ROFFT_HEAD:
                    295:                                roff_body_alloc(mdoc, n->line, n->pos,
                    296:                                    n->tok);
1.207     schwarze  297:                                break;
1.194     schwarze  298:                        case ROFFT_BLOCK:
                    299:                                break;
                    300:                        default:
                    301:                                return;
                    302:                        }
1.210     schwarze  303:                        if ( ! (n->flags & NODE_BROKEN))
1.194     schwarze  304:                                return;
                    305:                } else
                    306:                        n = mdoc->last;
1.166     schwarze  307:
1.183     schwarze  308:                for (;;) {
                    309:                        if ((n = n->parent) == NULL)
                    310:                                return;
                    311:
1.184     schwarze  312:                        if (n->type == ROFFT_BLOCK ||
                    313:                            n->type == ROFFT_HEAD) {
1.210     schwarze  314:                                if (n->flags & NODE_ENDED)
1.183     schwarze  315:                                        break;
                    316:                                else
                    317:                                        return;
                    318:                        }
                    319:                }
1.166     schwarze  320:        }
                    321: }
                    322:
                    323: /*
1.84      schwarze  324:  * For a block closing macro, return the corresponding opening one.
                    325:  * Otherwise, return the macro itself.
1.32      kristaps  326:  */
1.185     schwarze  327: static int
                    328: rew_alt(int tok)
1.1       kristaps  329: {
                    330:        switch (tok) {
1.131     schwarze  331:        case MDOC_Ac:
1.202     schwarze  332:                return MDOC_Ao;
1.131     schwarze  333:        case MDOC_Bc:
1.202     schwarze  334:                return MDOC_Bo;
1.131     schwarze  335:        case MDOC_Brc:
1.202     schwarze  336:                return MDOC_Bro;
1.131     schwarze  337:        case MDOC_Dc:
1.202     schwarze  338:                return MDOC_Do;
1.131     schwarze  339:        case MDOC_Ec:
1.202     schwarze  340:                return MDOC_Eo;
1.131     schwarze  341:        case MDOC_Ed:
1.202     schwarze  342:                return MDOC_Bd;
1.131     schwarze  343:        case MDOC_Ef:
1.202     schwarze  344:                return MDOC_Bf;
1.131     schwarze  345:        case MDOC_Ek:
1.202     schwarze  346:                return MDOC_Bk;
1.131     schwarze  347:        case MDOC_El:
1.202     schwarze  348:                return MDOC_Bl;
1.131     schwarze  349:        case MDOC_Fc:
1.202     schwarze  350:                return MDOC_Fo;
1.131     schwarze  351:        case MDOC_Oc:
1.202     schwarze  352:                return MDOC_Oo;
1.131     schwarze  353:        case MDOC_Pc:
1.202     schwarze  354:                return MDOC_Po;
1.131     schwarze  355:        case MDOC_Qc:
1.202     schwarze  356:                return MDOC_Qo;
1.131     schwarze  357:        case MDOC_Re:
1.202     schwarze  358:                return MDOC_Rs;
1.131     schwarze  359:        case MDOC_Sc:
1.202     schwarze  360:                return MDOC_So;
1.131     schwarze  361:        case MDOC_Xc:
1.202     schwarze  362:                return MDOC_Xo;
1.1       kristaps  363:        default:
1.202     schwarze  364:                return tok;
1.1       kristaps  365:        }
                    366: }
                    367:
1.149     schwarze  368: static void
1.189     schwarze  369: rew_elem(struct roff_man *mdoc, int tok)
1.1       kristaps  370: {
1.185     schwarze  371:        struct roff_node *n;
1.1       kristaps  372:
                    373:        n = mdoc->last;
1.184     schwarze  374:        if (n->type != ROFFT_ELEM)
1.1       kristaps  375:                n = n->parent;
1.184     schwarze  376:        assert(n->type == ROFFT_ELEM);
1.1       kristaps  377:        assert(tok == n->tok);
1.149     schwarze  378:        rew_last(mdoc, n);
1.1       kristaps  379: }
                    380:
1.213     schwarze  381: static void
                    382: break_intermediate(struct roff_node *n, struct roff_node *breaker)
                    383: {
                    384:        while (n != breaker) {
                    385:                if ( ! (n->flags & NODE_VALID))
                    386:                        n->flags |= NODE_BROKEN;
                    387:                n = n->parent;
                    388:        }
                    389: }
                    390:
1.83      schwarze  391: /*
1.187     schwarze  392:  * If there is an open sub-block of the target requiring
                    393:  * explicit close-out, postpone closing out the target until
                    394:  * the rew_pending() call closing out the sub-block.
                    395:  */
                    396: static int
1.189     schwarze  397: find_pending(struct roff_man *mdoc, int tok, int line, int ppos,
1.187     schwarze  398:        struct roff_node *target)
                    399: {
                    400:        struct roff_node        *n;
                    401:        int                      irc;
                    402:
                    403:        irc = 0;
                    404:        for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
1.213     schwarze  405:                if (n->flags & NODE_ENDED)
1.187     schwarze  406:                        continue;
                    407:                if (n->type == ROFFT_BLOCK &&
                    408:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    409:                        irc = 1;
1.213     schwarze  410:                        break_intermediate(mdoc->last, n);
1.212     schwarze  411:                        n->flags |= NODE_BROKEN;
1.187     schwarze  412:                        if (target->type == ROFFT_HEAD)
1.212     schwarze  413:                                target->flags |= NODE_ENDED;
1.210     schwarze  414:                        else if ( ! (target->flags & NODE_ENDED)) {
1.187     schwarze  415:                                mandoc_vmsg(MANDOCERR_BLK_NEST,
                    416:                                    mdoc->parse, line, ppos,
                    417:                                    "%s breaks %s", mdoc_macronames[tok],
                    418:                                    mdoc_macronames[n->tok]);
                    419:                                mdoc_endbody_alloc(mdoc, line, ppos,
                    420:                                    tok, target, ENDBODY_NOSPACE);
                    421:                        }
                    422:                }
                    423:        }
1.202     schwarze  424:        return irc;
1.187     schwarze  425: }
                    426:
                    427: /*
1.105     kristaps  428:  * Allocate a word and check whether it's punctuation or not.
                    429:  * Punctuation consists of those tokens found in mdoc_isdelim().
                    430:  */
1.150     schwarze  431: static void
1.189     schwarze  432: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123     schwarze  433:                enum mdelim d, int may_append)
1.105     kristaps  434: {
1.131     schwarze  435:
1.150     schwarze  436:        if (d == DELIM_MAX)
1.105     kristaps  437:                d = mdoc_isdelim(p);
                    438:
1.123     schwarze  439:        if (may_append &&
1.150     schwarze  440:            ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184     schwarze  441:            d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150     schwarze  442:            mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.192     schwarze  443:                roff_word_append(mdoc, p);
1.150     schwarze  444:                return;
1.123     schwarze  445:        }
                    446:
1.192     schwarze  447:        roff_word_alloc(mdoc, line, col, p);
1.105     kristaps  448:
1.108     schwarze  449:        /*
1.144     schwarze  450:         * If the word consists of a bare delimiter,
                    451:         * flag the new node accordingly,
                    452:         * unless doing so was vetoed by the invoking macro.
                    453:         * Always clear the veto, it is only valid for one word.
1.108     schwarze  454:         */
                    455:
1.144     schwarze  456:        if (d == DELIM_OPEN)
1.210     schwarze  457:                mdoc->last->flags |= NODE_DELIMO;
1.144     schwarze  458:        else if (d == DELIM_CLOSE &&
                    459:            ! (mdoc->flags & MDOC_NODELIMC) &&
1.131     schwarze  460:            mdoc->last->parent->tok != MDOC_Fd)
1.210     schwarze  461:                mdoc->last->flags |= NODE_DELIMC;
1.144     schwarze  462:        mdoc->flags &= ~MDOC_NODELIMC;
1.105     kristaps  463: }
1.1       kristaps  464:
1.150     schwarze  465: static void
1.189     schwarze  466: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1       kristaps  467: {
1.153     schwarze  468:        char            *p;
1.66      kristaps  469:        int              la;
1.1       kristaps  470:
1.150     schwarze  471:        if (buf[*pos] == '\0')
                    472:                return;
1.1       kristaps  473:
                    474:        for (;;) {
1.66      kristaps  475:                la = *pos;
1.191     schwarze  476:                if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
                    477:                    ARGS_EOLN)
1.1       kristaps  478:                        break;
1.123     schwarze  479:                dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66      kristaps  480:
                    481:                /*
                    482:                 * If we encounter end-of-sentence symbols, then trigger
                    483:                 * the double-space.
                    484:                 *
1.109     kristaps  485:                 * XXX: it's easy to allow this to propagate outward to
1.66      kristaps  486:                 * the last symbol, such that `. )' will cause the
                    487:                 * correct double-spacing.  However, (1) groff isn't
                    488:                 * smart enough to do this and (2) it would require
                    489:                 * knowing which symbols break this behaviour, for
1.109     kristaps  490:                 * example, `.  ;' shouldn't propagate the double-space.
1.66      kristaps  491:                 */
1.150     schwarze  492:
1.127     schwarze  493:                if (mandoc_eos(p, strlen(p)))
1.210     schwarze  494:                        mdoc->last->flags |= NODE_EOS;
1.1       kristaps  495:        }
                    496: }
                    497:
                    498: /*
1.153     schwarze  499:  * Parse one word.
                    500:  * If it is a macro, call it and return 1.
                    501:  * Otherwise, allocate it and return 0.
                    502:  */
                    503: static int
                    504: macro_or_word(MACRO_PROT_ARGS, int parsed)
                    505: {
                    506:        char            *p;
1.185     schwarze  507:        int              ntok;
1.153     schwarze  508:
                    509:        p = buf + ppos;
1.191     schwarze  510:        ntok = TOKEN_NONE;
1.157     schwarze  511:        if (*p == '"')
1.153     schwarze  512:                p++;
1.157     schwarze  513:        else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155     schwarze  514:                ntok = lookup(mdoc, tok, line, ppos, p);
1.153     schwarze  515:
1.191     schwarze  516:        if (ntok == TOKEN_NONE) {
                    517:                dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.153     schwarze  518:                    mdoc_macros[tok].flags & MDOC_JOIN);
1.202     schwarze  519:                return 0;
1.153     schwarze  520:        } else {
                    521:                if (mdoc_macros[tok].fp == in_line_eoln)
                    522:                        rew_elem(mdoc, tok);
                    523:                mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.191     schwarze  524:                if (tok == TOKEN_NONE)
1.153     schwarze  525:                        append_delims(mdoc, line, pos, buf);
1.202     schwarze  526:                return 1;
1.153     schwarze  527:        }
                    528: }
                    529:
                    530: /*
1.131     schwarze  531:  * Close out block partial/full explicit.
1.1       kristaps  532:  */
1.151     schwarze  533: static void
1.1       kristaps  534: blk_exp_close(MACRO_PROT_ARGS)
                    535: {
1.185     schwarze  536:        struct roff_node *body;         /* Our own body. */
                    537:        struct roff_node *endbody;      /* Our own end marker. */
                    538:        struct roff_node *itblk;        /* An It block starting later. */
                    539:        struct roff_node *later;        /* A sub-block starting later. */
                    540:        struct roff_node *n;            /* Search back to our block. */
1.188     schwarze  541:        struct roff_node *target;       /* For find_pending(). */
1.83      schwarze  542:
1.188     schwarze  543:        int              j, lastarg, maxargs, nl, pending;
1.55      kristaps  544:        enum margserr    ac;
1.185     schwarze  545:        int              atok, ntok;
1.1       kristaps  546:        char            *p;
                    547:
1.119     schwarze  548:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  549:
1.1       kristaps  550:        switch (tok) {
1.131     schwarze  551:        case MDOC_Ec:
1.1       kristaps  552:                maxargs = 1;
                    553:                break;
1.131     schwarze  554:        case MDOC_Ek:
1.125     schwarze  555:                mdoc->flags &= ~MDOC_KEEP;
1.151     schwarze  556:                /* FALLTHROUGH */
1.1       kristaps  557:        default:
                    558:                maxargs = 0;
                    559:                break;
                    560:        }
                    561:
1.209     schwarze  562:        /* Search backwards for the beginning of our own body. */
                    563:
                    564:        atok = rew_alt(tok);
                    565:        body = NULL;
                    566:        for (n = mdoc->last; n; n = n->parent) {
1.210     schwarze  567:                if (n->flags & NODE_ENDED || n->tok != atok ||
1.209     schwarze  568:                    n->type != ROFFT_BODY || n->end != ENDBODY_NOT)
                    569:                        continue;
                    570:                body = n;
                    571:                break;
                    572:        }
                    573:
1.83      schwarze  574:        /*
                    575:         * Search backwards for beginnings of blocks,
                    576:         * both of our own and of pending sub-blocks.
                    577:         */
1.151     schwarze  578:
1.209     schwarze  579:        endbody = itblk = later = NULL;
1.119     schwarze  580:        for (n = mdoc->last; n; n = n->parent) {
1.213     schwarze  581:                if (n->flags & NODE_ENDED)
1.83      schwarze  582:                        continue;
                    583:
1.209     schwarze  584:                /*
1.211     schwarze  585:                 * Mismatching end macros can never break anything
1.209     schwarze  586:                 * and we only care about the breaking of BLOCKs.
                    587:                 */
1.83      schwarze  588:
1.211     schwarze  589:                if (body == NULL || n->type != ROFFT_BLOCK)
1.83      schwarze  590:                        continue;
1.160     schwarze  591:
1.211     schwarze  592:                /*
                    593:                 * SYNOPSIS name blocks can not be broken themselves,
                    594:                 * but they do get broken together with a broken child.
                    595:                 */
                    596:
                    597:                if (n->tok == MDOC_Nm) {
                    598:                        if (later != NULL)
                    599:                                n->flags |= NODE_BROKEN | NODE_ENDED;
                    600:                        continue;
                    601:                }
                    602:
1.160     schwarze  603:                if (n->tok == MDOC_It) {
1.171     schwarze  604:                        itblk = n;
1.160     schwarze  605:                        continue;
                    606:                }
                    607:
1.83      schwarze  608:                if (atok == n->tok) {
                    609:
                    610:                        /*
                    611:                         * Found the start of our own block.
                    612:                         * When there is no pending sub block,
                    613:                         * just proceed to closing out.
                    614:                         */
1.151     schwarze  615:
1.160     schwarze  616:                        if (later == NULL ||
1.171     schwarze  617:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  618:                                break;
                    619:
1.131     schwarze  620:                        /*
1.167     schwarze  621:                         * When there is a pending sub block, postpone
                    622:                         * closing out the current block until the
                    623:                         * rew_pending() closing out the sub-block.
1.83      schwarze  624:                         * Mark the place where the formatting - but not
                    625:                         * the scope - of the current block ends.
                    626:                         */
1.151     schwarze  627:
1.183     schwarze  628:                        mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
                    629:                            line, ppos, "%s breaks %s",
                    630:                            mdoc_macronames[atok],
                    631:                            mdoc_macronames[later->tok]);
                    632:
1.166     schwarze  633:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.150     schwarze  634:                            atok, body, ENDBODY_SPACE);
1.151     schwarze  635:
1.183     schwarze  636:                        if (tok == MDOC_El)
1.210     schwarze  637:                                itblk->flags |= NODE_ENDED | NODE_BROKEN;
1.183     schwarze  638:
1.151     schwarze  639:                        /*
                    640:                         * If a block closing macro taking arguments
                    641:                         * breaks another block, put the arguments
1.166     schwarze  642:                         * into the end marker.
1.151     schwarze  643:                         */
                    644:
1.166     schwarze  645:                        if (maxargs)
1.189     schwarze  646:                                mdoc->next = ROFF_NEXT_CHILD;
1.83      schwarze  647:                        break;
1.182     schwarze  648:                }
                    649:
1.214   ! schwarze  650:                /*
        !           651:                 * Explicit blocks close out description lines, but
        !           652:                 * even those can get broken together with a child.
        !           653:                 */
1.182     schwarze  654:
                    655:                if (n->tok == MDOC_Nd) {
1.214   ! schwarze  656:                        if (later != NULL)
        !           657:                                n->flags |= NODE_BROKEN | NODE_ENDED;
        !           658:                        else
        !           659:                                rew_last(mdoc, n);
1.182     schwarze  660:                        continue;
1.83      schwarze  661:                }
                    662:
1.183     schwarze  663:                /* Breaking an open sub block. */
1.151     schwarze  664:
1.213     schwarze  665:                break_intermediate(mdoc->last, body);
1.210     schwarze  666:                n->flags |= NODE_BROKEN;
1.183     schwarze  667:                if (later == NULL)
1.83      schwarze  668:                        later = n;
                    669:        }
1.166     schwarze  670:
                    671:        if (body == NULL) {
                    672:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
                    673:                    line, ppos, mdoc_macronames[tok]);
                    674:                if (maxargs && endbody == NULL) {
                    675:                        /*
                    676:                         * Stray .Ec without previous .Eo:
                    677:                         * Break the output line, keep the arguments.
                    678:                         */
1.193     schwarze  679:                        roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.166     schwarze  680:                        rew_elem(mdoc, MDOC_br);
                    681:                }
                    682:        } else if (endbody == NULL) {
                    683:                rew_last(mdoc, body);
                    684:                if (maxargs)
                    685:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    686:        }
1.83      schwarze  687:
1.150     schwarze  688:        if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
                    689:                if (buf[*pos] != '\0')
1.136     schwarze  690:                        mandoc_vmsg(MANDOCERR_ARG_SKIP,
                    691:                            mdoc->parse, line, ppos,
                    692:                            "%s %s", mdoc_macronames[tok],
                    693:                            buf + *pos);
1.171     schwarze  694:                if (endbody == NULL && n != NULL)
1.167     schwarze  695:                        rew_pending(mdoc, n);
1.151     schwarze  696:                return;
1.1       kristaps  697:        }
                    698:
1.166     schwarze  699:        if (endbody != NULL)
                    700:                n = endbody;
1.197     schwarze  701:
                    702:        ntok = TOKEN_NONE;
1.148     schwarze  703:        for (j = 0; ; j++) {
1.1       kristaps  704:                lastarg = *pos;
                    705:
1.186     schwarze  706:                if (j == maxargs && n != NULL)
                    707:                        rew_last(mdoc, n);
1.1       kristaps  708:
1.119     schwarze  709:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  710:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  711:                        break;
                    712:
1.191     schwarze  713:                ntok = ac == ARGS_QWORD ? TOKEN_NONE :
1.155     schwarze  714:                    lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  715:
1.191     schwarze  716:                if (ntok == TOKEN_NONE) {
1.150     schwarze  717:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
                    718:                            MDOC_JOIN & mdoc_macros[tok].flags);
1.54      kristaps  719:                        continue;
                    720:                }
1.1       kristaps  721:
1.186     schwarze  722:                if (n != NULL)
                    723:                        rew_last(mdoc, n);
1.122     schwarze  724:                mdoc->flags &= ~MDOC_NEWLINE;
1.151     schwarze  725:                mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  726:                break;
1.1       kristaps  727:        }
                    728:
1.188     schwarze  729:        if (n != NULL) {
1.212     schwarze  730:                pending = 0;
1.210     schwarze  731:                if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
1.188     schwarze  732:                        target = n;
                    733:                        do
                    734:                                target = target->parent;
1.210     schwarze  735:                        while ( ! (target->flags & NODE_ENDED));
1.212     schwarze  736:                        if ( ! (target->flags & NODE_VALID))
                    737:                                pending = find_pending(mdoc, ntok,
                    738:                                    line, ppos, target);
                    739:                }
1.188     schwarze  740:                if ( ! pending)
                    741:                        rew_pending(mdoc, n);
                    742:        }
1.150     schwarze  743:        if (nl)
                    744:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  745: }
                    746:
1.151     schwarze  747: static void
1.1       kristaps  748: in_line(MACRO_PROT_ARGS)
                    749: {
1.144     schwarze  750:        int              la, scope, cnt, firstarg, mayopen, nc, nl;
1.185     schwarze  751:        int              ntok;
1.55      kristaps  752:        enum margserr    ac;
1.67      schwarze  753:        enum mdelim      d;
1.53      kristaps  754:        struct mdoc_arg *arg;
                    755:        char            *p;
1.1       kristaps  756:
1.119     schwarze  757:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  758:
1.4       kristaps  759:        /*
                    760:         * Whether we allow ignored elements (those without content,
                    761:         * usually because of reserved words) to squeak by.
                    762:         */
1.45      kristaps  763:
1.4       kristaps  764:        switch (tok) {
1.131     schwarze  765:        case MDOC_An:
                    766:        case MDOC_Ar:
                    767:        case MDOC_Fl:
                    768:        case MDOC_Mt:
                    769:        case MDOC_Nm:
                    770:        case MDOC_Pa:
1.4       kristaps  771:                nc = 1;
                    772:                break;
                    773:        default:
                    774:                nc = 0;
                    775:                break;
                    776:        }
                    777:
1.152     schwarze  778:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps  779:
1.144     schwarze  780:        d = DELIM_NONE;
                    781:        firstarg = 1;
1.142     schwarze  782:        mayopen = 1;
1.70      kristaps  783:        for (cnt = scope = 0;; ) {
1.1       kristaps  784:                la = *pos;
1.119     schwarze  785:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.1       kristaps  786:
1.144     schwarze  787:                /*
                    788:                 * At the end of a macro line,
                    789:                 * opening delimiters do not suppress spacing.
                    790:                 */
                    791:
                    792:                if (ac == ARGS_EOLN) {
                    793:                        if (d == DELIM_OPEN)
1.210     schwarze  794:                                mdoc->last->flags &= ~NODE_DELIMO;
1.1       kristaps  795:                        break;
1.144     schwarze  796:                }
                    797:
                    798:                /*
                    799:                 * The rest of the macro line is only punctuation,
                    800:                 * to be handled by append_delims().
                    801:                 * If there were no other arguments,
                    802:                 * do not allow the first one to suppress spacing,
                    803:                 * even if it turns out to be a closing one.
                    804:                 */
                    805:
                    806:                if (ac == ARGS_PUNCT) {
1.176     schwarze  807:                        if (cnt == 0 && (nc == 0 || tok == MDOC_An))
1.144     schwarze  808:                                mdoc->flags |= MDOC_NODELIMC;
1.1       kristaps  809:                        break;
1.144     schwarze  810:                }
1.1       kristaps  811:
1.145     schwarze  812:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Fn && !cnt)) ?
1.191     schwarze  813:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.1       kristaps  814:
1.131     schwarze  815:                /*
1.4       kristaps  816:                 * In this case, we've located a submacro and must
                    817:                 * execute it.  Close out scope, if open.  If no
                    818:                 * elements have been generated, either create one (nc)
                    819:                 * or raise a warning.
                    820:                 */
1.1       kristaps  821:
1.191     schwarze  822:                if (ntok != TOKEN_NONE) {
1.149     schwarze  823:                        if (scope)
                    824:                                rew_elem(mdoc, tok);
1.150     schwarze  825:                        if (nc && ! cnt) {
                    826:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.149     schwarze  827:                                rew_last(mdoc, mdoc->last);
1.150     schwarze  828:                        } else if ( ! nc && ! cnt) {
1.7       kristaps  829:                                mdoc_argv_free(arg);
1.135     schwarze  830:                                mandoc_msg(MANDOCERR_MACRO_EMPTY,
                    831:                                    mdoc->parse, line, ppos,
                    832:                                    mdoc_macronames[tok]);
1.7       kristaps  833:                        }
1.151     schwarze  834:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.150     schwarze  835:                        if (nl)
                    836:                                append_delims(mdoc, line, pos, buf);
1.151     schwarze  837:                        return;
1.131     schwarze  838:                }
1.1       kristaps  839:
1.131     schwarze  840:                /*
1.4       kristaps  841:                 * Non-quote-enclosed punctuation.  Set up our scope, if
                    842:                 * a word; rewind the scope, if a delimiter; then append
1.131     schwarze  843:                 * the word.
1.4       kristaps  844:                 */
1.1       kristaps  845:
1.150     schwarze  846:                d = ac == ARGS_QWORD ? DELIM_NONE : mdoc_isdelim(p);
1.3       kristaps  847:
1.70      kristaps  848:                if (DELIM_NONE != d) {
                    849:                        /*
                    850:                         * If we encounter closing punctuation, no word
1.144     schwarze  851:                         * has been emitted, no scope is open, and we're
1.70      kristaps  852:                         * allowed to have an empty element, then start
1.142     schwarze  853:                         * a new scope.
1.70      kristaps  854:                         */
1.142     schwarze  855:                        if ((d == DELIM_CLOSE ||
                    856:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  857:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  858:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  859:                                scope = 1;
1.142     schwarze  860:                                cnt++;
1.150     schwarze  861:                                if (tok == MDOC_Nm)
1.142     schwarze  862:                                        mayopen = 0;
1.70      kristaps  863:                        }
                    864:                        /*
                    865:                         * Close out our scope, if one is open, before
                    866:                         * any punctuation.
                    867:                         */
1.149     schwarze  868:                        if (scope)
                    869:                                rew_elem(mdoc, tok);
1.70      kristaps  870:                        scope = 0;
1.145     schwarze  871:                        if (tok == MDOC_Fn)
                    872:                                mayopen = 0;
1.142     schwarze  873:                } else if (mayopen && !scope) {
1.150     schwarze  874:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  875:                        scope = 1;
1.142     schwarze  876:                        cnt++;
1.1       kristaps  877:                }
1.105     kristaps  878:
1.150     schwarze  879:                dword(mdoc, line, la, p, d,
                    880:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.39      kristaps  881:
                    882:                /*
1.144     schwarze  883:                 * If the first argument is a closing delimiter,
                    884:                 * do not suppress spacing before it.
                    885:                 */
                    886:
                    887:                if (firstarg && d == DELIM_CLOSE && !nc)
1.210     schwarze  888:                        mdoc->last->flags &= ~NODE_DELIMC;
1.144     schwarze  889:                firstarg = 0;
                    890:
                    891:                /*
1.39      kristaps  892:                 * `Fl' macros have their scope re-opened with each new
                    893:                 * word so that the `-' can be added to each one without
                    894:                 * having to parse out spaces.
                    895:                 */
1.150     schwarze  896:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  897:                        rew_elem(mdoc, tok);
1.70      kristaps  898:                        scope = 0;
1.39      kristaps  899:                }
1.1       kristaps  900:        }
                    901:
1.149     schwarze  902:        if (scope)
                    903:                rew_elem(mdoc, tok);
1.4       kristaps  904:
                    905:        /*
                    906:         * If no elements have been collected and we're allowed to have
                    907:         * empties (nc), open a scope and close it out.  Otherwise,
                    908:         * raise a warning.
                    909:         */
1.45      kristaps  910:
1.150     schwarze  911:        if ( ! cnt) {
                    912:                if (nc) {
                    913:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                    914:                        rew_last(mdoc, mdoc->last);
                    915:                } else {
                    916:                        mdoc_argv_free(arg);
                    917:                        mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    918:                            line, ppos, mdoc_macronames[tok]);
                    919:                }
1.7       kristaps  920:        }
1.150     schwarze  921:        if (nl)
                    922:                append_delims(mdoc, line, pos, buf);
1.1       kristaps  923: }
                    924:
1.151     schwarze  925: static void
1.1       kristaps  926: blk_full(MACRO_PROT_ARGS)
                    927: {
1.153     schwarze  928:        int               la, nl, parsed;
1.1       kristaps  929:        struct mdoc_arg  *arg;
1.185     schwarze  930:        struct roff_node *blk; /* Our own or a broken block. */
                    931:        struct roff_node *head; /* Our own head. */
                    932:        struct roff_node *body; /* Our own body. */
                    933:        struct roff_node *n;
1.59      kristaps  934:        enum margserr     ac, lac;
1.1       kristaps  935:        char             *p;
                    936:
1.119     schwarze  937:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  938:
1.177     schwarze  939:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    940:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                    941:                    line, ppos, mdoc_macronames[tok]);
                    942:                return;
                    943:        }
                    944:
1.171     schwarze  945:        if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
                    946:
                    947:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    948:
                    949:                blk = NULL;
                    950:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze  951:                        if (n->flags & NODE_ENDED) {
                    952:                                if ( ! (n->flags & NODE_VALID))
                    953:                                        n->flags |= NODE_BROKEN;
1.183     schwarze  954:                                continue;
                    955:                        }
1.184     schwarze  956:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  957:                                continue;
1.183     schwarze  958:
1.171     schwarze  959:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    960:                                if (blk != NULL) {
                    961:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    962:                                            mdoc->parse, line, ppos,
                    963:                                            "It breaks %s",
                    964:                                            mdoc_macronames[blk->tok]);
                    965:                                        rew_pending(mdoc, blk);
                    966:                                }
                    967:                                break;
                    968:                        }
                    969:
                    970:                        if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    971:                                switch (tok) {
                    972:                                case MDOC_Sh:
                    973:                                case MDOC_Ss:
                    974:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    975:                                            mdoc->parse, line, ppos,
                    976:                                            "%s breaks %s",
                    977:                                            mdoc_macronames[tok],
                    978:                                            mdoc_macronames[n->tok]);
                    979:                                        rew_pending(mdoc, n);
1.180     schwarze  980:                                        n = mdoc->last;
1.171     schwarze  981:                                        continue;
                    982:                                case MDOC_It:
                    983:                                        /* Delay in case it's astray. */
                    984:                                        blk = n;
                    985:                                        continue;
                    986:                                default:
                    987:                                        break;
                    988:                                }
                    989:                                break;
                    990:                        }
                    991:
                    992:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze  993:
1.171     schwarze  994:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                    995:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                    996:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze  997:                                break;
1.171     schwarze  998:
                    999:                        /* Item breaking an explicit block. */
                   1000:
                   1001:                        if (blk != NULL) {
                   1002:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                   1003:                                    mdoc->parse, line, ppos,
                   1004:                                    "It breaks %s",
                   1005:                                    mdoc_macronames[blk->tok]);
                   1006:                                rew_pending(mdoc, blk);
1.172     schwarze 1007:                                blk = NULL;
1.171     schwarze 1008:                        }
                   1009:
                   1010:                        /* Close out prior implicit scopes. */
                   1011:
1.211     schwarze 1012:                        rew_pending(mdoc, n);
1.171     schwarze 1013:                }
                   1014:
                   1015:                /* Skip items outside lists. */
                   1016:
                   1017:                if (tok == MDOC_It && (n == NULL || n->tok != MDOC_Bl)) {
1.138     schwarze 1018:                        mandoc_vmsg(MANDOCERR_IT_STRAY, mdoc->parse,
                   1019:                            line, ppos, "It %s", buf + *pos);
1.193     schwarze 1020:                        roff_elem_alloc(mdoc, line, ppos, MDOC_br);
1.149     schwarze 1021:                        rew_elem(mdoc, MDOC_br);
1.151     schwarze 1022:                        return;
1.138     schwarze 1023:                }
1.1       kristaps 1024:        }
                   1025:
1.45      kristaps 1026:        /*
1.109     kristaps 1027:         * This routine accommodates implicitly- and explicitly-scoped
1.45      kristaps 1028:         * macro openings.  Implicit ones first close out prior scope
                   1029:         * (seen above).  Delay opening the head until necessary to
                   1030:         * allow leading punctuation to print.  Special consideration
                   1031:         * for `It -column', which has phrase-part syntax instead of
                   1032:         * regular child nodes.
                   1033:         */
                   1034:
1.152     schwarze 1035:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.165     schwarze 1036:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, arg);
1.49      kristaps 1037:        head = body = NULL;
1.115     schwarze 1038:
                   1039:        /*
                   1040:         * Exception: Heads of `It' macros in `-diag' lists are not
                   1041:         * parsed, even though `It' macros in general are parsed.
                   1042:         */
1.151     schwarze 1043:
1.153     schwarze 1044:        parsed = tok != MDOC_It ||
                   1045:            mdoc->last->parent->tok != MDOC_Bl ||
                   1046:            mdoc->last->parent->norm->Bl.type != LIST_diag;
1.1       kristaps 1047:
1.45      kristaps 1048:        /*
                   1049:         * The `Nd' macro has all arguments in its body: it's a hybrid
                   1050:         * of block partial-explicit and full-implicit.  Stupid.
                   1051:         */
1.19      kristaps 1052:
1.150     schwarze 1053:        if (tok == MDOC_Nd) {
1.190     schwarze 1054:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.162     schwarze 1055:                rew_last(mdoc, head);
1.190     schwarze 1056:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.123     schwarze 1057:        }
                   1058:
1.150     schwarze 1059:        if (tok == MDOC_Bk)
1.123     schwarze 1060:                mdoc->flags |= MDOC_KEEP;
1.19      kristaps 1061:
1.205     schwarze 1062:        ac = ARGS_EOLN;
1.150     schwarze 1063:        for (;;) {
1.205     schwarze 1064:
                   1065:                /*
                   1066:                 * If we are right after a tab character,
                   1067:                 * do not parse the first word for macros.
                   1068:                 */
                   1069:
                   1070:                if (mdoc->flags & MDOC_PHRASEQN) {
                   1071:                        mdoc->flags &= ~MDOC_PHRASEQN;
                   1072:                        mdoc->flags |= MDOC_PHRASEQF;
                   1073:                }
                   1074:
1.45      kristaps 1075:                la = *pos;
1.150     schwarze 1076:                lac = ac;
1.119     schwarze 1077:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1078:                if (ac == ARGS_EOLN) {
1.205     schwarze 1079:                        if (lac != ARGS_PHRASE ||
                   1080:                            ! (mdoc->flags & MDOC_PHRASEQF))
1.75      kristaps 1081:                                break;
1.205     schwarze 1082:
1.75      kristaps 1083:                        /*
1.205     schwarze 1084:                         * This line ends in a tab; start the next
                   1085:                         * column now, with a leading blank.
1.75      kristaps 1086:                         */
1.205     schwarze 1087:
1.167     schwarze 1088:                        if (body != NULL)
                   1089:                                rew_last(mdoc, body);
1.190     schwarze 1090:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.205     schwarze 1091:                        roff_word_alloc(mdoc, line, ppos, "\\&");
1.1       kristaps 1092:                        break;
1.75      kristaps 1093:                }
1.205     schwarze 1094:
1.174     schwarze 1095:                if (tok == MDOC_Bd || tok == MDOC_Bk) {
                   1096:                        mandoc_vmsg(MANDOCERR_ARG_EXCESS,
                   1097:                            mdoc->parse, line, la, "%s ... %s",
                   1098:                            mdoc_macronames[tok], buf + la);
                   1099:                        break;
                   1100:                }
1.173     schwarze 1101:                if (tok == MDOC_Rs) {
                   1102:                        mandoc_vmsg(MANDOCERR_ARG_SKIP, mdoc->parse,
                   1103:                            line, la, "Rs %s", buf + la);
                   1104:                        break;
                   1105:                }
                   1106:                if (ac == ARGS_PUNCT)
                   1107:                        break;
1.45      kristaps 1108:
1.131     schwarze 1109:                /*
1.73      kristaps 1110:                 * Emit leading punctuation (i.e., punctuation before
1.184     schwarze 1111:                 * the ROFFT_HEAD) for non-phrase types.
1.73      kristaps 1112:                 */
1.45      kristaps 1113:
1.150     schwarze 1114:                if (head == NULL &&
                   1115:                    ac != ARGS_PHRASE &&
                   1116:                    ac != ARGS_QWORD &&
                   1117:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1118:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1119:                        continue;
                   1120:                }
                   1121:
1.74      kristaps 1122:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1123:
1.150     schwarze 1124:                if (head == NULL)
1.190     schwarze 1125:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1126:
1.205     schwarze 1127:                if (ac == ARGS_PHRASE) {
1.151     schwarze 1128:
1.73      kristaps 1129:                        /*
1.74      kristaps 1130:                         * If we haven't opened a body yet, rewind the
                   1131:                         * head; if we have, rewind that instead.
                   1132:                         */
                   1133:
1.167     schwarze 1134:                        rew_last(mdoc, body == NULL ? head : body);
1.190     schwarze 1135:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1136:
1.205     schwarze 1137:                        /* Process to the tab or to the end of the line. */
1.74      kristaps 1138:
1.205     schwarze 1139:                        mdoc->flags |= MDOC_PHRASE;
1.191     schwarze 1140:                        parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.205     schwarze 1141:                        mdoc->flags &= ~MDOC_PHRASE;
1.204     schwarze 1142:
                   1143:                        /* There may have been `Ta' macros. */
                   1144:
                   1145:                        while (body->next != NULL)
                   1146:                                body = body->next;
1.1       kristaps 1147:                        continue;
                   1148:                }
                   1149:
1.153     schwarze 1150:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1151:                        break;
1.45      kristaps 1152:        }
1.1       kristaps 1153:
1.210     schwarze 1154:        if (blk->flags & NODE_VALID)
1.165     schwarze 1155:                return;
1.150     schwarze 1156:        if (head == NULL)
1.190     schwarze 1157:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1158:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1159:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1160:        if (body != NULL)
1.77      kristaps 1161:                goto out;
1.187     schwarze 1162:        if (find_pending(mdoc, tok, line, ppos, head))
1.183     schwarze 1163:                return;
1.47      kristaps 1164:
1.45      kristaps 1165:        /* Close out scopes to remain in a consistent state. */
                   1166:
1.167     schwarze 1167:        rew_last(mdoc, head);
1.190     schwarze 1168:        body = roff_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1169: out:
1.150     schwarze 1170:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1171:                rew_last(mdoc, body);
                   1172:                rew_last(mdoc, blk);
1.150     schwarze 1173:                mdoc->flags &= ~MDOC_FREECOL;
                   1174:        }
1.1       kristaps 1175: }
                   1176:
1.151     schwarze 1177: static void
1.1       kristaps 1178: blk_part_imp(MACRO_PROT_ARGS)
                   1179: {
1.63      kristaps 1180:        int               la, nl;
1.55      kristaps 1181:        enum margserr     ac;
1.1       kristaps 1182:        char             *p;
1.185     schwarze 1183:        struct roff_node *blk; /* saved block context */
                   1184:        struct roff_node *body; /* saved body context */
                   1185:        struct roff_node *n;
1.1       kristaps 1186:
1.119     schwarze 1187:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1188:
1.43      kristaps 1189:        /*
                   1190:         * A macro that spans to the end of the line.  This is generally
                   1191:         * (but not necessarily) called as the first macro.  The block
                   1192:         * has a head as the immediate child, which is always empty,
                   1193:         * followed by zero or more opening punctuation nodes, then the
                   1194:         * body (which may be empty, depending on the macro), then zero
                   1195:         * or more closing punctuation nodes.
                   1196:         */
1.32      kristaps 1197:
1.150     schwarze 1198:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190     schwarze 1199:        rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1200:
1.43      kristaps 1201:        /*
                   1202:         * Open the body scope "on-demand", that is, after we've
                   1203:         * processed all our the leading delimiters (open parenthesis,
                   1204:         * etc.).
                   1205:         */
1.1       kristaps 1206:
1.43      kristaps 1207:        for (body = NULL; ; ) {
1.32      kristaps 1208:                la = *pos;
1.119     schwarze 1209:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1210:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1211:                        break;
                   1212:
1.150     schwarze 1213:                if (body == NULL && ac != ARGS_QWORD &&
                   1214:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1215:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1216:                        continue;
1.123     schwarze 1217:                }
1.1       kristaps 1218:
1.150     schwarze 1219:                if (body == NULL)
1.190     schwarze 1220:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1221:
1.153     schwarze 1222:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1223:                        break;
1.1       kristaps 1224:        }
1.150     schwarze 1225:        if (body == NULL)
1.190     schwarze 1226:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1227:
1.187     schwarze 1228:        if (find_pending(mdoc, tok, line, ppos, body))
1.183     schwarze 1229:                return;
                   1230:
1.164     schwarze 1231:        rew_last(mdoc, body);
1.150     schwarze 1232:        if (nl)
                   1233:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1234:        rew_pending(mdoc, blk);
1.117     schwarze 1235:
                   1236:        /* Move trailing .Ns out of scope. */
                   1237:
                   1238:        for (n = body->child; n && n->next; n = n->next)
                   1239:                /* Do nothing. */ ;
1.150     schwarze 1240:        if (n && n->tok == MDOC_Ns)
1.119     schwarze 1241:                mdoc_node_relink(mdoc, n);
1.1       kristaps 1242: }
                   1243:
1.151     schwarze 1244: static void
1.1       kristaps 1245: blk_part_exp(MACRO_PROT_ARGS)
                   1246: {
1.60      kristaps 1247:        int               la, nl;
1.55      kristaps 1248:        enum margserr     ac;
1.185     schwarze 1249:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1250:        char             *p;
                   1251:
1.119     schwarze 1252:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1253:
1.43      kristaps 1254:        /*
                   1255:         * The opening of an explicit macro having zero or more leading
                   1256:         * punctuation nodes; a head with optional single element (the
                   1257:         * case of `Eo'); and a body that may be empty.
                   1258:         */
1.32      kristaps 1259:
1.193     schwarze 1260:        roff_block_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1261:        head = NULL;
                   1262:        for (;;) {
1.32      kristaps 1263:                la = *pos;
1.119     schwarze 1264:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1265:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1266:                        break;
1.43      kristaps 1267:
                   1268:                /* Flush out leading punctuation. */
                   1269:
1.150     schwarze 1270:                if (head == NULL && ac != ARGS_QWORD &&
                   1271:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1272:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1273:                        continue;
1.123     schwarze 1274:                }
1.43      kristaps 1275:
1.150     schwarze 1276:                if (head == NULL) {
1.190     schwarze 1277:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1278:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1279:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1280:                        rew_last(mdoc, head);
1.190     schwarze 1281:                        roff_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1282:                        if (tok == MDOC_Eo)
1.43      kristaps 1283:                                continue;
1.1       kristaps 1284:                }
1.43      kristaps 1285:
1.153     schwarze 1286:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1287:                        break;
1.1       kristaps 1288:        }
                   1289:
1.43      kristaps 1290:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1291:
1.163     schwarze 1292:        if (head == NULL) {
1.190     schwarze 1293:                rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
                   1294:                roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1295:        }
1.150     schwarze 1296:        if (nl)
                   1297:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1298: }
                   1299:
1.151     schwarze 1300: static void
1.1       kristaps 1301: in_line_argn(MACRO_PROT_ARGS)
                   1302: {
1.53      kristaps 1303:        struct mdoc_arg *arg;
                   1304:        char            *p;
1.181     schwarze 1305:        enum margserr    ac;
1.185     schwarze 1306:        int              ntok;
1.181     schwarze 1307:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1308:        int              la, maxargs, nl;
1.1       kristaps 1309:
1.156     schwarze 1310:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1311:
1.46      kristaps 1312:        /*
                   1313:         * A line macro that has a fixed number of arguments (maxargs).
                   1314:         * Only open the scope once the first non-leading-punctuation is
                   1315:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1316:         * keep it open until the maximum number of arguments are
                   1317:         * exhausted.
                   1318:         */
1.1       kristaps 1319:
                   1320:        switch (tok) {
1.131     schwarze 1321:        case MDOC_Ap:
                   1322:        case MDOC_Ns:
                   1323:        case MDOC_Ux:
1.1       kristaps 1324:                maxargs = 0;
                   1325:                break;
1.131     schwarze 1326:        case MDOC_Bx:
1.132     schwarze 1327:        case MDOC_Es:
1.131     schwarze 1328:        case MDOC_Xr:
1.42      kristaps 1329:                maxargs = 2;
                   1330:                break;
1.1       kristaps 1331:        default:
                   1332:                maxargs = 1;
                   1333:                break;
                   1334:        }
                   1335:
1.152     schwarze 1336:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1337:
1.181     schwarze 1338:        state = -1;
1.156     schwarze 1339:        p = NULL;
                   1340:        for (;;) {
1.32      kristaps 1341:                la = *pos;
1.119     schwarze 1342:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1343:
                   1344:                if (ac == ARGS_WORD && state == -1 &&
                   1345:                    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
                   1346:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1347:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1348:                        continue;
                   1349:                }
                   1350:
                   1351:                if (state == -1 && tok != MDOC_In &&
                   1352:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1353:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1354:                        state = 0;
                   1355:                }
                   1356:
1.156     schwarze 1357:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1358:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1359:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1360:                                    mdoc->parse, line, ppos, "Pf %s",
                   1361:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1362:                        break;
1.156     schwarze 1363:                }
1.1       kristaps 1364:
1.181     schwarze 1365:                if (state == maxargs) {
1.149     schwarze 1366:                        rew_elem(mdoc, tok);
1.181     schwarze 1367:                        state = -2;
1.46      kristaps 1368:                }
                   1369:
1.181     schwarze 1370:                ntok = (ac == ARGS_QWORD || (tok == MDOC_Pf && state == 0)) ?
1.191     schwarze 1371:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1372:
1.191     schwarze 1373:                if (ntok != TOKEN_NONE) {
1.181     schwarze 1374:                        if (state >= 0) {
1.149     schwarze 1375:                                rew_elem(mdoc, tok);
1.181     schwarze 1376:                                state = -2;
                   1377:                        }
1.151     schwarze 1378:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1       kristaps 1379:                        break;
                   1380:                }
                   1381:
1.181     schwarze 1382:                if (ac == ARGS_QWORD ||
                   1383:                    mdoc_macros[tok].flags & MDOC_IGNDELIM ||
                   1384:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1385:                        if (state == -1) {
                   1386:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1387:                                state = 1;
                   1388:                        } else if (state >= 0)
                   1389:                                state++;
                   1390:                } else if (state >= 0) {
1.149     schwarze 1391:                        rew_elem(mdoc, tok);
1.181     schwarze 1392:                        state = -2;
1.1       kristaps 1393:                }
1.42      kristaps 1394:
1.150     schwarze 1395:                dword(mdoc, line, la, p, DELIM_MAX,
                   1396:                    MDOC_JOIN & mdoc_macros[tok].flags);
1.1       kristaps 1397:        }
                   1398:
1.181     schwarze 1399:        if (state == -1) {
                   1400:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
                   1401:                    line, ppos, mdoc_macronames[tok]);
                   1402:                return;
1.156     schwarze 1403:        }
1.181     schwarze 1404:
                   1405:        if (state == 0 && tok == MDOC_Pf)
                   1406:                append_delims(mdoc, line, pos, buf);
                   1407:        if (state >= 0)
1.149     schwarze 1408:                rew_elem(mdoc, tok);
1.150     schwarze 1409:        if (nl)
                   1410:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1411: }
                   1412:
1.151     schwarze 1413: static void
1.1       kristaps 1414: in_line_eoln(MACRO_PROT_ARGS)
                   1415: {
1.185     schwarze 1416:        struct roff_node        *n;
1.170     schwarze 1417:        struct mdoc_arg         *arg;
1.1       kristaps 1418:
1.170     schwarze 1419:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1420:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1421:                n = mdoc->last;
1.189     schwarze 1422:                if (mdoc->next == ROFF_NEXT_SIBLING)
1.170     schwarze 1423:                        n = n->parent;
                   1424:                if (n->tok == MDOC_Nm)
1.198     schwarze 1425:                        rew_last(mdoc, n->parent);
1.178     schwarze 1426:        }
                   1427:
1.179     schwarze 1428:        if (buf[*pos] == '\0' &&
                   1429:            (tok == MDOC_Fd || mdoc_macronames[tok][0] == '%')) {
1.178     schwarze 1430:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.179     schwarze 1431:                    line, ppos, mdoc_macronames[tok]);
1.178     schwarze 1432:                return;
1.170     schwarze 1433:        }
1.90      schwarze 1434:
1.152     schwarze 1435:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1436:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1437:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1438:                return;
                   1439:        rew_elem(mdoc, tok);
                   1440: }
                   1441:
                   1442: /*
                   1443:  * The simplest argument parser available: Parse the remaining
                   1444:  * words until the end of the phrase or line and return 0
                   1445:  * or until the next macro, call that macro, and return 1.
                   1446:  */
                   1447: static int
1.189     schwarze 1448: parse_rest(struct roff_man *mdoc, int tok, int line, int *pos, char *buf)
1.154     schwarze 1449: {
                   1450:        int              la;
1.1       kristaps 1451:
                   1452:        for (;;) {
                   1453:                la = *pos;
1.153     schwarze 1454:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.202     schwarze 1455:                        return 0;
1.153     schwarze 1456:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.202     schwarze 1457:                        return 1;
1.1       kristaps 1458:        }
                   1459: }
                   1460:
1.151     schwarze 1461: static void
1.41      kristaps 1462: ctx_synopsis(MACRO_PROT_ARGS)
                   1463: {
1.60      kristaps 1464:
1.151     schwarze 1465:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1466:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1467:        else if (tok == MDOC_Nm)
                   1468:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1469:        else {
                   1470:                assert(tok == MDOC_Vt);
                   1471:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1472:        }
1.1       kristaps 1473: }
                   1474:
1.24      kristaps 1475: /*
                   1476:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1477:  * They're unusual because they're basically free-form text until a
                   1478:  * macro is encountered.
                   1479:  */
1.151     schwarze 1480: static void
1.75      kristaps 1481: phrase_ta(MACRO_PROT_ARGS)
                   1482: {
1.185     schwarze 1483:        struct roff_node *body, *n;
1.75      kristaps 1484:
1.121     schwarze 1485:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1486:
1.167     schwarze 1487:        body = NULL;
                   1488:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze 1489:                if (n->flags & NODE_ENDED)
1.167     schwarze 1490:                        continue;
1.184     schwarze 1491:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1492:                        body = n;
1.208     schwarze 1493:                if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
1.167     schwarze 1494:                        break;
                   1495:        }
                   1496:
1.151     schwarze 1497:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1498:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1499:                    line, ppos, "Ta");
1.151     schwarze 1500:                return;
1.121     schwarze 1501:        }
1.75      kristaps 1502:
1.121     schwarze 1503:        /* Advance to the next column. */
1.150     schwarze 1504:
1.167     schwarze 1505:        rew_last(mdoc, body);
1.190     schwarze 1506:        roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191     schwarze 1507:        parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75      kristaps 1508: }

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