[BACK]Return to mdoc_macro.c CVS log [TXT][DIR] Up to [cvsweb.bsd.lv] / mandoc

Annotation of mandoc/mdoc_macro.c, Revision 1.224

1.224   ! schwarze    1: /*     $Id: mdoc_macro.c,v 1.223 2017/05/05 15:17:32 schwarze Exp $ */
1.1       kristaps    2: /*
1.116     schwarze    3:  * Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
1.216     schwarze    4:  * Copyright (c) 2010, 2012-2017 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
1.8       kristaps    7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    9:  *
1.184     schwarze   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.8       kristaps   11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.184     schwarze   12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.8       kristaps   13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   17:  */
1.40      kristaps   18: #include "config.h"
1.140     schwarze   19:
                     20: #include <sys/types.h>
1.40      kristaps   21:
1.1       kristaps   22: #include <assert.h>
                     23: #include <ctype.h>
                     24: #include <stdlib.h>
                     25: #include <stdio.h>
                     26: #include <string.h>
1.38      kristaps   27: #include <time.h>
1.1       kristaps   28:
1.184     schwarze   29: #include "mandoc.h"
                     30: #include "roff.h"
1.106     kristaps   31: #include "mdoc.h"
1.184     schwarze   32: #include "libmandoc.h"
1.190     schwarze   33: #include "roff_int.h"
1.1       kristaps   34: #include "libmdoc.h"
                     35:
1.151     schwarze   36: static void            blk_full(MACRO_PROT_ARGS);
                     37: static void            blk_exp_close(MACRO_PROT_ARGS);
                     38: static void            blk_part_exp(MACRO_PROT_ARGS);
                     39: static void            blk_part_imp(MACRO_PROT_ARGS);
                     40: static void            ctx_synopsis(MACRO_PROT_ARGS);
                     41: static void            in_line_eoln(MACRO_PROT_ARGS);
                     42: static void            in_line_argn(MACRO_PROT_ARGS);
                     43: static void            in_line(MACRO_PROT_ARGS);
                     44: static void            phrase_ta(MACRO_PROT_ARGS);
1.53      kristaps   45:
1.189     schwarze   46: static void            append_delims(struct roff_man *, int, int *, char *);
                     47: static void            dword(struct roff_man *, int, int, const char *,
1.187     schwarze   48:                                enum mdelim, int);
1.219     schwarze   49: static int             find_pending(struct roff_man *, enum roff_tok,
                     50:                                int, int, struct roff_node *);
1.189     schwarze   51: static int             lookup(struct roff_man *, int, int, int, const char *);
1.153     schwarze   52: static int             macro_or_word(MACRO_PROT_ARGS, int);
1.213     schwarze   53: static void            break_intermediate(struct roff_node *,
1.219     schwarze   54:                                struct roff_node *);
                     55: static int             parse_rest(struct roff_man *, enum roff_tok,
                     56:                                int, int *, char *);
                     57: static enum roff_tok   rew_alt(enum roff_tok);
                     58: static void            rew_elem(struct roff_man *, enum roff_tok);
1.189     schwarze   59: static void            rew_last(struct roff_man *, const struct roff_node *);
                     60: static void            rew_pending(struct roff_man *,
                     61:                                const struct roff_node *);
1.1       kristaps   62:
1.219     schwarze   63: const  struct mdoc_macro __mdoc_macros[MDOC_MAX - MDOC_Dd] = {
1.1       kristaps   64:        { in_line_eoln, MDOC_PROLOGUE }, /* Dd */
                     65:        { in_line_eoln, MDOC_PROLOGUE }, /* Dt */
                     66:        { in_line_eoln, MDOC_PROLOGUE }, /* Os */
1.123     schwarze   67:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Sh */
                     68:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* Ss */
                     69:        { in_line_eoln, 0 }, /* Pp */
                     70:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* D1 */
                     71:        { blk_part_imp, MDOC_PARSED | MDOC_JOIN }, /* Dl */
1.1       kristaps   72:        { blk_full, MDOC_EXPLICIT }, /* Bd */
1.123     schwarze   73:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ed */
1.1       kristaps   74:        { blk_full, MDOC_EXPLICIT }, /* Bl */
1.123     schwarze   75:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* El */
                     76:        { blk_full, MDOC_PARSED | MDOC_JOIN }, /* It */
                     77:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ad */
                     78:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* An */
1.224   ! schwarze   79:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
        !            80:                        MDOC_IGNDELIM | MDOC_JOIN }, /* Ap */
1.1       kristaps   81:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ar */
1.129     schwarze   82:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Cd */
1.1       kristaps   83:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Cm */
1.123     schwarze   84:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Dv */
                     85:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Er */
                     86:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ev */
1.1       kristaps   87:        { in_line_eoln, 0 }, /* Ex */
1.123     schwarze   88:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fa */
                     89:        { in_line_eoln, 0 }, /* Fd */
1.1       kristaps   90:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fl */
1.123     schwarze   91:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fn */
                     92:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ft */
1.128     schwarze   93:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ic */
1.18      kristaps   94:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */
1.123     schwarze   95:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Li */
                     96:        { blk_full, MDOC_JOIN }, /* Nd */
                     97:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */
1.1       kristaps   98:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */
1.132     schwarze   99:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ot */
1.1       kristaps  100:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */
                    101:        { in_line_eoln, 0 }, /* Rv */
1.123     schwarze  102:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* St */
1.1       kristaps  103:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Va */
1.123     schwarze  104:        { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Vt */
1.42      kristaps  105:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Xr */
1.123     schwarze  106:        { in_line_eoln, MDOC_JOIN }, /* %A */
                    107:        { in_line_eoln, MDOC_JOIN }, /* %B */
                    108:        { in_line_eoln, MDOC_JOIN }, /* %D */
                    109:        { in_line_eoln, MDOC_JOIN }, /* %I */
                    110:        { in_line_eoln, MDOC_JOIN }, /* %J */
1.1       kristaps  111:        { in_line_eoln, 0 }, /* %N */
1.123     schwarze  112:        { in_line_eoln, MDOC_JOIN }, /* %O */
1.1       kristaps  113:        { in_line_eoln, 0 }, /* %P */
1.123     schwarze  114:        { in_line_eoln, MDOC_JOIN }, /* %R */
                    115:        { in_line_eoln, MDOC_JOIN }, /* %T */
1.1       kristaps  116:        { in_line_eoln, 0 }, /* %V */
1.123     schwarze  117:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    118:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Ac */
                    119:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    120:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Ao */
                    121:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Aq */
1.1       kristaps  122:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* At */
1.123     schwarze  123:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    124:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Bc */
                    125:        { blk_full, MDOC_EXPLICIT }, /* Bf */
                    126:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    127:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bo */
                    128:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Bq */
1.1       kristaps  129:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bsx */
                    130:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Bx */
                    131:        { in_line_eoln, 0 }, /* Db */
1.123     schwarze  132:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    133:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Dc */
                    134:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    135:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Do */
                    136:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Dq */
                    137:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Ec */
                    138:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ef */
                    139:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Em */
1.1       kristaps  140:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */
                    141:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */
1.11      kristaps  142:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */
1.144     schwarze  143:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* No */
1.123     schwarze  144:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED |
                    145:                        MDOC_IGNDELIM | MDOC_JOIN }, /* Ns */
1.1       kristaps  146:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */
                    147:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */
1.123     schwarze  148:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    149:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Pc */
1.52      kristaps  150:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Pf */
1.123     schwarze  151:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    152:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Po */
                    153:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Pq */
                    154:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    155:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Qc */
                    156:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ql */
                    157:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    158:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Qo */
                    159:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Qq */
                    160:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Re */
1.1       kristaps  161:        { blk_full, MDOC_EXPLICIT }, /* Rs */
1.123     schwarze  162:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    163:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Sc */
                    164:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    165:                        MDOC_EXPLICIT | MDOC_JOIN }, /* So */
                    166:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sq */
1.147     schwarze  167:        { in_line_argn, 0 }, /* Sm */
1.123     schwarze  168:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sx */
                    169:        { in_line, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Sy */
1.1       kristaps  170:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Tn */
1.123     schwarze  171:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ux */
1.1       kristaps  172:        { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Xc */
                    173:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Xo */
1.123     schwarze  174:        { blk_full, MDOC_EXPLICIT | MDOC_CALLABLE }, /* Fo */
                    175:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    176:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Fc */
                    177:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    178:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Oo */
                    179:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    180:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Oc */
1.1       kristaps  181:        { blk_full, MDOC_EXPLICIT }, /* Bk */
1.123     schwarze  182:        { blk_exp_close, MDOC_EXPLICIT | MDOC_JOIN }, /* Ek */
1.1       kristaps  183:        { in_line_eoln, 0 }, /* Bt */
                    184:        { in_line_eoln, 0 }, /* Hf */
1.132     schwarze  185:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Fr */
1.1       kristaps  186:        { in_line_eoln, 0 }, /* Ud */
1.69      kristaps  187:        { in_line, 0 }, /* Lb */
1.123     schwarze  188:        { in_line_eoln, 0 }, /* Lp */
                    189:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Lk */
                    190:        { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Mt */
                    191:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Brq */
                    192:        { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED |
                    193:                        MDOC_EXPLICIT | MDOC_JOIN }, /* Bro */
                    194:        { blk_exp_close, MDOC_CALLABLE | MDOC_PARSED |
                    195:                         MDOC_EXPLICIT | MDOC_JOIN }, /* Brc */
                    196:        { in_line_eoln, MDOC_JOIN }, /* %C */
1.132     schwarze  197:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Es */
                    198:        { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* En */
1.1       kristaps  199:        { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Dx */
1.123     schwarze  200:        { in_line_eoln, MDOC_JOIN }, /* %Q */
1.37      kristaps  201:        { in_line_eoln, 0 }, /* %U */
1.123     schwarze  202:        { phrase_ta, MDOC_CALLABLE | MDOC_PARSED | MDOC_JOIN }, /* Ta */
1.1       kristaps  203: };
1.219     schwarze  204: const  struct mdoc_macro *const mdoc_macros = __mdoc_macros - MDOC_Dd;
1.1       kristaps  205:
                    206:
                    207: /*
                    208:  * This is called at the end of parsing.  It must traverse up the tree,
                    209:  * closing out open [implicit] scopes.  Obviously, open explicit scopes
                    210:  * are errors.
                    211:  */
1.151     schwarze  212: void
1.195     schwarze  213: mdoc_endparse(struct roff_man *mdoc)
1.1       kristaps  214: {
1.185     schwarze  215:        struct roff_node *n;
1.1       kristaps  216:
                    217:        /* Scan for open explicit scopes. */
                    218:
1.210     schwarze  219:        n = mdoc->last->flags & NODE_VALID ?
1.131     schwarze  220:            mdoc->last->parent : mdoc->last;
1.1       kristaps  221:
1.94      schwarze  222:        for ( ; n; n = n->parent)
1.184     schwarze  223:                if (n->type == ROFFT_BLOCK &&
1.151     schwarze  224:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT)
1.137     schwarze  225:                        mandoc_msg(MANDOCERR_BLK_NOEND, mdoc->parse,
1.219     schwarze  226:                            n->line, n->pos, roff_name[n->tok]);
1.1       kristaps  227:
1.32      kristaps  228:        /* Rewind to the first. */
                    229:
1.149     schwarze  230:        rew_last(mdoc, mdoc->first);
1.206     schwarze  231:        mdoc_state_reset(mdoc);
1.1       kristaps  232: }
                    233:
1.32      kristaps  234: /*
1.153     schwarze  235:  * Look up the macro at *p called by "from",
1.191     schwarze  236:  * or as a line macro if from == TOKEN_NONE.
1.32      kristaps  237:  */
1.185     schwarze  238: static int
1.189     schwarze  239: lookup(struct roff_man *mdoc, int from, int line, int ppos, const char *p)
1.28      kristaps  240: {
1.219     schwarze  241:        enum roff_tok    res;
1.1       kristaps  242:
1.205     schwarze  243:        if (mdoc->flags & MDOC_PHRASEQF) {
                    244:                mdoc->flags &= ~MDOC_PHRASEQF;
                    245:                return TOKEN_NONE;
                    246:        }
1.191     schwarze  247:        if (from == TOKEN_NONE || mdoc_macros[from].flags & MDOC_PARSED) {
1.220     schwarze  248:                res = roffhash_find(mdoc->mdocmac, p, 0);
1.191     schwarze  249:                if (res != TOKEN_NONE) {
1.155     schwarze  250:                        if (mdoc_macros[res].flags & MDOC_CALLABLE)
1.202     schwarze  251:                                return res;
1.223     schwarze  252:                        mandoc_msg(MANDOCERR_MACRO_CALL,
                    253:                            mdoc->parse, line, ppos, p);
1.155     schwarze  254:                }
1.153     schwarze  255:        }
1.202     schwarze  256:        return TOKEN_NONE;
1.1       kristaps  257: }
                    258:
1.166     schwarze  259: /*
                    260:  * Rewind up to and including a specific node.
                    261:  */
1.149     schwarze  262: static void
1.189     schwarze  263: rew_last(struct roff_man *mdoc, const struct roff_node *to)
1.1       kristaps  264: {
                    265:
1.210     schwarze  266:        if (to->flags & NODE_VALID)
1.186     schwarze  267:                return;
                    268:
1.1       kristaps  269:        while (mdoc->last != to) {
1.206     schwarze  270:                mdoc_state(mdoc, mdoc->last);
1.210     schwarze  271:                mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.206     schwarze  272:                mdoc->last = mdoc->last->parent;
1.1       kristaps  273:        }
1.206     schwarze  274:        mdoc_state(mdoc, mdoc->last);
1.210     schwarze  275:        mdoc->last->flags |= NODE_VALID | NODE_ENDED;
1.200     schwarze  276:        mdoc->next = ROFF_NEXT_SIBLING;
1.1       kristaps  277: }
                    278:
1.32      kristaps  279: /*
1.166     schwarze  280:  * Rewind up to a specific block, including all blocks that broke it.
                    281:  */
                    282: static void
1.189     schwarze  283: rew_pending(struct roff_man *mdoc, const struct roff_node *n)
1.166     schwarze  284: {
                    285:
1.183     schwarze  286:        for (;;) {
                    287:                rew_last(mdoc, n);
                    288:
1.194     schwarze  289:                if (mdoc->last == n) {
                    290:                        switch (n->type) {
                    291:                        case ROFFT_HEAD:
                    292:                                roff_body_alloc(mdoc, n->line, n->pos,
                    293:                                    n->tok);
1.207     schwarze  294:                                break;
1.194     schwarze  295:                        case ROFFT_BLOCK:
                    296:                                break;
                    297:                        default:
                    298:                                return;
                    299:                        }
1.210     schwarze  300:                        if ( ! (n->flags & NODE_BROKEN))
1.194     schwarze  301:                                return;
                    302:                } else
                    303:                        n = mdoc->last;
1.166     schwarze  304:
1.183     schwarze  305:                for (;;) {
                    306:                        if ((n = n->parent) == NULL)
                    307:                                return;
                    308:
1.184     schwarze  309:                        if (n->type == ROFFT_BLOCK ||
                    310:                            n->type == ROFFT_HEAD) {
1.210     schwarze  311:                                if (n->flags & NODE_ENDED)
1.183     schwarze  312:                                        break;
                    313:                                else
                    314:                                        return;
                    315:                        }
                    316:                }
1.166     schwarze  317:        }
                    318: }
                    319:
                    320: /*
1.84      schwarze  321:  * For a block closing macro, return the corresponding opening one.
                    322:  * Otherwise, return the macro itself.
1.32      kristaps  323:  */
1.219     schwarze  324: static enum roff_tok
                    325: rew_alt(enum roff_tok tok)
1.1       kristaps  326: {
                    327:        switch (tok) {
1.131     schwarze  328:        case MDOC_Ac:
1.202     schwarze  329:                return MDOC_Ao;
1.131     schwarze  330:        case MDOC_Bc:
1.202     schwarze  331:                return MDOC_Bo;
1.131     schwarze  332:        case MDOC_Brc:
1.202     schwarze  333:                return MDOC_Bro;
1.131     schwarze  334:        case MDOC_Dc:
1.202     schwarze  335:                return MDOC_Do;
1.131     schwarze  336:        case MDOC_Ec:
1.202     schwarze  337:                return MDOC_Eo;
1.131     schwarze  338:        case MDOC_Ed:
1.202     schwarze  339:                return MDOC_Bd;
1.131     schwarze  340:        case MDOC_Ef:
1.202     schwarze  341:                return MDOC_Bf;
1.131     schwarze  342:        case MDOC_Ek:
1.202     schwarze  343:                return MDOC_Bk;
1.131     schwarze  344:        case MDOC_El:
1.202     schwarze  345:                return MDOC_Bl;
1.131     schwarze  346:        case MDOC_Fc:
1.202     schwarze  347:                return MDOC_Fo;
1.131     schwarze  348:        case MDOC_Oc:
1.202     schwarze  349:                return MDOC_Oo;
1.131     schwarze  350:        case MDOC_Pc:
1.202     schwarze  351:                return MDOC_Po;
1.131     schwarze  352:        case MDOC_Qc:
1.202     schwarze  353:                return MDOC_Qo;
1.131     schwarze  354:        case MDOC_Re:
1.202     schwarze  355:                return MDOC_Rs;
1.131     schwarze  356:        case MDOC_Sc:
1.202     schwarze  357:                return MDOC_So;
1.131     schwarze  358:        case MDOC_Xc:
1.202     schwarze  359:                return MDOC_Xo;
1.1       kristaps  360:        default:
1.202     schwarze  361:                return tok;
1.1       kristaps  362:        }
                    363: }
                    364:
1.149     schwarze  365: static void
1.219     schwarze  366: rew_elem(struct roff_man *mdoc, enum roff_tok tok)
1.1       kristaps  367: {
1.185     schwarze  368:        struct roff_node *n;
1.1       kristaps  369:
                    370:        n = mdoc->last;
1.184     schwarze  371:        if (n->type != ROFFT_ELEM)
1.1       kristaps  372:                n = n->parent;
1.184     schwarze  373:        assert(n->type == ROFFT_ELEM);
1.1       kristaps  374:        assert(tok == n->tok);
1.149     schwarze  375:        rew_last(mdoc, n);
1.1       kristaps  376: }
                    377:
1.213     schwarze  378: static void
                    379: break_intermediate(struct roff_node *n, struct roff_node *breaker)
                    380: {
1.217     schwarze  381:        if (n != breaker &&
                    382:            n->type != ROFFT_BLOCK && n->type != ROFFT_HEAD &&
                    383:            (n->type != ROFFT_BODY || n->end != ENDBODY_NOT))
                    384:                n = n->parent;
1.213     schwarze  385:        while (n != breaker) {
                    386:                if ( ! (n->flags & NODE_VALID))
                    387:                        n->flags |= NODE_BROKEN;
                    388:                n = n->parent;
                    389:        }
                    390: }
                    391:
1.83      schwarze  392: /*
1.187     schwarze  393:  * If there is an open sub-block of the target requiring
                    394:  * explicit close-out, postpone closing out the target until
                    395:  * the rew_pending() call closing out the sub-block.
                    396:  */
                    397: static int
1.219     schwarze  398: find_pending(struct roff_man *mdoc, enum roff_tok tok, int line, int ppos,
1.187     schwarze  399:        struct roff_node *target)
                    400: {
                    401:        struct roff_node        *n;
                    402:        int                      irc;
                    403:
1.215     schwarze  404:        if (target->flags & NODE_VALID)
                    405:                return 0;
                    406:
1.187     schwarze  407:        irc = 0;
                    408:        for (n = mdoc->last; n != NULL && n != target; n = n->parent) {
1.213     schwarze  409:                if (n->flags & NODE_ENDED)
1.187     schwarze  410:                        continue;
                    411:                if (n->type == ROFFT_BLOCK &&
                    412:                    mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    413:                        irc = 1;
1.217     schwarze  414:                        break_intermediate(mdoc->last, target);
1.187     schwarze  415:                        if (target->type == ROFFT_HEAD)
1.212     schwarze  416:                                target->flags |= NODE_ENDED;
1.210     schwarze  417:                        else if ( ! (target->flags & NODE_ENDED)) {
1.187     schwarze  418:                                mandoc_vmsg(MANDOCERR_BLK_NEST,
                    419:                                    mdoc->parse, line, ppos,
1.219     schwarze  420:                                    "%s breaks %s", roff_name[tok],
                    421:                                    roff_name[n->tok]);
1.187     schwarze  422:                                mdoc_endbody_alloc(mdoc, line, ppos,
1.216     schwarze  423:                                    tok, target);
1.187     schwarze  424:                        }
                    425:                }
                    426:        }
1.202     schwarze  427:        return irc;
1.187     schwarze  428: }
                    429:
                    430: /*
1.105     kristaps  431:  * Allocate a word and check whether it's punctuation or not.
                    432:  * Punctuation consists of those tokens found in mdoc_isdelim().
                    433:  */
1.150     schwarze  434: static void
1.189     schwarze  435: dword(struct roff_man *mdoc, int line, int col, const char *p,
1.123     schwarze  436:                enum mdelim d, int may_append)
1.105     kristaps  437: {
1.131     schwarze  438:
1.150     schwarze  439:        if (d == DELIM_MAX)
1.105     kristaps  440:                d = mdoc_isdelim(p);
                    441:
1.123     schwarze  442:        if (may_append &&
1.150     schwarze  443:            ! (mdoc->flags & (MDOC_SYNOPSIS | MDOC_KEEP | MDOC_SMOFF)) &&
1.184     schwarze  444:            d == DELIM_NONE && mdoc->last->type == ROFFT_TEXT &&
1.150     schwarze  445:            mdoc_isdelim(mdoc->last->string) == DELIM_NONE) {
1.192     schwarze  446:                roff_word_append(mdoc, p);
1.150     schwarze  447:                return;
1.123     schwarze  448:        }
                    449:
1.192     schwarze  450:        roff_word_alloc(mdoc, line, col, p);
1.105     kristaps  451:
1.108     schwarze  452:        /*
1.144     schwarze  453:         * If the word consists of a bare delimiter,
                    454:         * flag the new node accordingly,
                    455:         * unless doing so was vetoed by the invoking macro.
                    456:         * Always clear the veto, it is only valid for one word.
1.108     schwarze  457:         */
                    458:
1.144     schwarze  459:        if (d == DELIM_OPEN)
1.210     schwarze  460:                mdoc->last->flags |= NODE_DELIMO;
1.144     schwarze  461:        else if (d == DELIM_CLOSE &&
                    462:            ! (mdoc->flags & MDOC_NODELIMC) &&
1.131     schwarze  463:            mdoc->last->parent->tok != MDOC_Fd)
1.210     schwarze  464:                mdoc->last->flags |= NODE_DELIMC;
1.144     schwarze  465:        mdoc->flags &= ~MDOC_NODELIMC;
1.105     kristaps  466: }
1.1       kristaps  467:
1.150     schwarze  468: static void
1.189     schwarze  469: append_delims(struct roff_man *mdoc, int line, int *pos, char *buf)
1.1       kristaps  470: {
1.153     schwarze  471:        char            *p;
1.66      kristaps  472:        int              la;
1.1       kristaps  473:
1.150     schwarze  474:        if (buf[*pos] == '\0')
                    475:                return;
1.1       kristaps  476:
                    477:        for (;;) {
1.66      kristaps  478:                la = *pos;
1.191     schwarze  479:                if (mdoc_args(mdoc, line, pos, buf, TOKEN_NONE, &p) ==
                    480:                    ARGS_EOLN)
1.1       kristaps  481:                        break;
1.123     schwarze  482:                dword(mdoc, line, la, p, DELIM_MAX, 1);
1.66      kristaps  483:
                    484:                /*
                    485:                 * If we encounter end-of-sentence symbols, then trigger
                    486:                 * the double-space.
                    487:                 *
1.109     kristaps  488:                 * XXX: it's easy to allow this to propagate outward to
1.66      kristaps  489:                 * the last symbol, such that `. )' will cause the
                    490:                 * correct double-spacing.  However, (1) groff isn't
                    491:                 * smart enough to do this and (2) it would require
                    492:                 * knowing which symbols break this behaviour, for
1.109     kristaps  493:                 * example, `.  ;' shouldn't propagate the double-space.
1.66      kristaps  494:                 */
1.150     schwarze  495:
1.127     schwarze  496:                if (mandoc_eos(p, strlen(p)))
1.210     schwarze  497:                        mdoc->last->flags |= NODE_EOS;
1.1       kristaps  498:        }
                    499: }
                    500:
                    501: /*
1.153     schwarze  502:  * Parse one word.
                    503:  * If it is a macro, call it and return 1.
                    504:  * Otherwise, allocate it and return 0.
                    505:  */
                    506: static int
                    507: macro_or_word(MACRO_PROT_ARGS, int parsed)
                    508: {
                    509:        char            *p;
1.185     schwarze  510:        int              ntok;
1.153     schwarze  511:
                    512:        p = buf + ppos;
1.191     schwarze  513:        ntok = TOKEN_NONE;
1.157     schwarze  514:        if (*p == '"')
1.153     schwarze  515:                p++;
1.157     schwarze  516:        else if (parsed && ! (mdoc->flags & MDOC_PHRASELIT))
1.155     schwarze  517:                ntok = lookup(mdoc, tok, line, ppos, p);
1.153     schwarze  518:
1.191     schwarze  519:        if (ntok == TOKEN_NONE) {
                    520:                dword(mdoc, line, ppos, p, DELIM_MAX, tok == TOKEN_NONE ||
1.153     schwarze  521:                    mdoc_macros[tok].flags & MDOC_JOIN);
1.202     schwarze  522:                return 0;
1.153     schwarze  523:        } else {
1.219     schwarze  524:                if (tok != TOKEN_NONE &&
                    525:                    mdoc_macros[tok].fp == in_line_eoln)
1.153     schwarze  526:                        rew_elem(mdoc, tok);
                    527:                mdoc_macro(mdoc, ntok, line, ppos, pos, buf);
1.191     schwarze  528:                if (tok == TOKEN_NONE)
1.153     schwarze  529:                        append_delims(mdoc, line, pos, buf);
1.202     schwarze  530:                return 1;
1.153     schwarze  531:        }
                    532: }
                    533:
                    534: /*
1.131     schwarze  535:  * Close out block partial/full explicit.
1.1       kristaps  536:  */
1.151     schwarze  537: static void
1.1       kristaps  538: blk_exp_close(MACRO_PROT_ARGS)
                    539: {
1.185     schwarze  540:        struct roff_node *body;         /* Our own body. */
                    541:        struct roff_node *endbody;      /* Our own end marker. */
                    542:        struct roff_node *itblk;        /* An It block starting later. */
                    543:        struct roff_node *later;        /* A sub-block starting later. */
                    544:        struct roff_node *n;            /* Search back to our block. */
1.188     schwarze  545:        struct roff_node *target;       /* For find_pending(). */
1.83      schwarze  546:
1.188     schwarze  547:        int              j, lastarg, maxargs, nl, pending;
1.55      kristaps  548:        enum margserr    ac;
1.219     schwarze  549:        enum roff_tok    atok, ntok;
1.1       kristaps  550:        char            *p;
                    551:
1.119     schwarze  552:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps  553:
1.1       kristaps  554:        switch (tok) {
1.131     schwarze  555:        case MDOC_Ec:
1.1       kristaps  556:                maxargs = 1;
                    557:                break;
1.131     schwarze  558:        case MDOC_Ek:
1.125     schwarze  559:                mdoc->flags &= ~MDOC_KEEP;
1.151     schwarze  560:                /* FALLTHROUGH */
1.1       kristaps  561:        default:
                    562:                maxargs = 0;
                    563:                break;
                    564:        }
                    565:
1.209     schwarze  566:        /* Search backwards for the beginning of our own body. */
                    567:
                    568:        atok = rew_alt(tok);
                    569:        body = NULL;
                    570:        for (n = mdoc->last; n; n = n->parent) {
1.210     schwarze  571:                if (n->flags & NODE_ENDED || n->tok != atok ||
1.209     schwarze  572:                    n->type != ROFFT_BODY || n->end != ENDBODY_NOT)
                    573:                        continue;
                    574:                body = n;
                    575:                break;
                    576:        }
                    577:
1.83      schwarze  578:        /*
                    579:         * Search backwards for beginnings of blocks,
                    580:         * both of our own and of pending sub-blocks.
                    581:         */
1.151     schwarze  582:
1.209     schwarze  583:        endbody = itblk = later = NULL;
1.119     schwarze  584:        for (n = mdoc->last; n; n = n->parent) {
1.213     schwarze  585:                if (n->flags & NODE_ENDED)
1.83      schwarze  586:                        continue;
                    587:
1.209     schwarze  588:                /*
1.211     schwarze  589:                 * Mismatching end macros can never break anything
1.209     schwarze  590:                 * and we only care about the breaking of BLOCKs.
                    591:                 */
1.83      schwarze  592:
1.211     schwarze  593:                if (body == NULL || n->type != ROFFT_BLOCK)
1.83      schwarze  594:                        continue;
1.160     schwarze  595:
1.211     schwarze  596:                /*
                    597:                 * SYNOPSIS name blocks can not be broken themselves,
                    598:                 * but they do get broken together with a broken child.
                    599:                 */
                    600:
                    601:                if (n->tok == MDOC_Nm) {
                    602:                        if (later != NULL)
                    603:                                n->flags |= NODE_BROKEN | NODE_ENDED;
                    604:                        continue;
                    605:                }
                    606:
1.160     schwarze  607:                if (n->tok == MDOC_It) {
1.171     schwarze  608:                        itblk = n;
1.160     schwarze  609:                        continue;
                    610:                }
                    611:
1.83      schwarze  612:                if (atok == n->tok) {
                    613:
                    614:                        /*
                    615:                         * Found the start of our own block.
                    616:                         * When there is no pending sub block,
                    617:                         * just proceed to closing out.
                    618:                         */
1.151     schwarze  619:
1.160     schwarze  620:                        if (later == NULL ||
1.171     schwarze  621:                            (tok == MDOC_El && itblk == NULL))
1.83      schwarze  622:                                break;
                    623:
1.131     schwarze  624:                        /*
1.167     schwarze  625:                         * When there is a pending sub block, postpone
                    626:                         * closing out the current block until the
                    627:                         * rew_pending() closing out the sub-block.
1.83      schwarze  628:                         * Mark the place where the formatting - but not
                    629:                         * the scope - of the current block ends.
                    630:                         */
1.151     schwarze  631:
1.183     schwarze  632:                        mandoc_vmsg(MANDOCERR_BLK_NEST, mdoc->parse,
                    633:                            line, ppos, "%s breaks %s",
1.219     schwarze  634:                            roff_name[atok], roff_name[later->tok]);
1.183     schwarze  635:
1.166     schwarze  636:                        endbody = mdoc_endbody_alloc(mdoc, line, ppos,
1.216     schwarze  637:                            atok, body);
1.151     schwarze  638:
1.183     schwarze  639:                        if (tok == MDOC_El)
1.210     schwarze  640:                                itblk->flags |= NODE_ENDED | NODE_BROKEN;
1.183     schwarze  641:
1.151     schwarze  642:                        /*
                    643:                         * If a block closing macro taking arguments
                    644:                         * breaks another block, put the arguments
1.166     schwarze  645:                         * into the end marker.
1.151     schwarze  646:                         */
                    647:
1.166     schwarze  648:                        if (maxargs)
1.189     schwarze  649:                                mdoc->next = ROFF_NEXT_CHILD;
1.83      schwarze  650:                        break;
1.182     schwarze  651:                }
                    652:
1.214     schwarze  653:                /*
                    654:                 * Explicit blocks close out description lines, but
                    655:                 * even those can get broken together with a child.
                    656:                 */
1.182     schwarze  657:
                    658:                if (n->tok == MDOC_Nd) {
1.214     schwarze  659:                        if (later != NULL)
                    660:                                n->flags |= NODE_BROKEN | NODE_ENDED;
                    661:                        else
                    662:                                rew_last(mdoc, n);
1.182     schwarze  663:                        continue;
1.83      schwarze  664:                }
                    665:
1.183     schwarze  666:                /* Breaking an open sub block. */
1.151     schwarze  667:
1.213     schwarze  668:                break_intermediate(mdoc->last, body);
1.210     schwarze  669:                n->flags |= NODE_BROKEN;
1.183     schwarze  670:                if (later == NULL)
1.83      schwarze  671:                        later = n;
                    672:        }
1.166     schwarze  673:
                    674:        if (body == NULL) {
                    675:                mandoc_msg(MANDOCERR_BLK_NOTOPEN, mdoc->parse,
1.219     schwarze  676:                    line, ppos, roff_name[tok]);
1.166     schwarze  677:                if (maxargs && endbody == NULL) {
                    678:                        /*
                    679:                         * Stray .Ec without previous .Eo:
                    680:                         * Break the output line, keep the arguments.
                    681:                         */
1.221     schwarze  682:                        roff_elem_alloc(mdoc, line, ppos, ROFF_br);
                    683:                        rew_elem(mdoc, ROFF_br);
1.166     schwarze  684:                }
                    685:        } else if (endbody == NULL) {
                    686:                rew_last(mdoc, body);
                    687:                if (maxargs)
                    688:                        mdoc_tail_alloc(mdoc, line, ppos, atok);
                    689:        }
1.83      schwarze  690:
1.150     schwarze  691:        if ( ! (mdoc_macros[tok].flags & MDOC_PARSED)) {
                    692:                if (buf[*pos] != '\0')
1.136     schwarze  693:                        mandoc_vmsg(MANDOCERR_ARG_SKIP,
                    694:                            mdoc->parse, line, ppos,
1.219     schwarze  695:                            "%s %s", roff_name[tok],
1.136     schwarze  696:                            buf + *pos);
1.171     schwarze  697:                if (endbody == NULL && n != NULL)
1.167     schwarze  698:                        rew_pending(mdoc, n);
1.151     schwarze  699:                return;
1.1       kristaps  700:        }
                    701:
1.166     schwarze  702:        if (endbody != NULL)
                    703:                n = endbody;
1.197     schwarze  704:
                    705:        ntok = TOKEN_NONE;
1.148     schwarze  706:        for (j = 0; ; j++) {
1.1       kristaps  707:                lastarg = *pos;
                    708:
1.186     schwarze  709:                if (j == maxargs && n != NULL)
                    710:                        rew_last(mdoc, n);
1.1       kristaps  711:
1.119     schwarze  712:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze  713:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps  714:                        break;
                    715:
1.224   ! schwarze  716:                ntok = lookup(mdoc, tok, line, lastarg, p);
1.54      kristaps  717:
1.191     schwarze  718:                if (ntok == TOKEN_NONE) {
1.150     schwarze  719:                        dword(mdoc, line, lastarg, p, DELIM_MAX,
                    720:                            MDOC_JOIN & mdoc_macros[tok].flags);
1.54      kristaps  721:                        continue;
                    722:                }
1.1       kristaps  723:
1.186     schwarze  724:                if (n != NULL)
                    725:                        rew_last(mdoc, n);
1.122     schwarze  726:                mdoc->flags &= ~MDOC_NEWLINE;
1.151     schwarze  727:                mdoc_macro(mdoc, ntok, line, lastarg, pos, buf);
1.54      kristaps  728:                break;
1.1       kristaps  729:        }
                    730:
1.188     schwarze  731:        if (n != NULL) {
1.212     schwarze  732:                pending = 0;
1.210     schwarze  733:                if (ntok != TOKEN_NONE && n->flags & NODE_BROKEN) {
1.188     schwarze  734:                        target = n;
                    735:                        do
                    736:                                target = target->parent;
1.210     schwarze  737:                        while ( ! (target->flags & NODE_ENDED));
1.215     schwarze  738:                        pending = find_pending(mdoc, ntok, line, ppos, target);
1.212     schwarze  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;
1.219     schwarze  751:        enum roff_tok    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:
1.224   ! schwarze  812:                ntok = (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,
1.219     schwarze  832:                                    roff_name[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:                /*
1.224   ! schwarze  841:                 * Handle punctuation.  Set up our scope, if a word;
        !           842:                 * rewind the scope, if a delimiter; then append the word.
1.4       kristaps  843:                 */
1.1       kristaps  844:
1.224   ! schwarze  845:                if ((d = mdoc_isdelim(p)) != DELIM_NONE) {
1.70      kristaps  846:                        /*
                    847:                         * If we encounter closing punctuation, no word
1.144     schwarze  848:                         * has been emitted, no scope is open, and we're
1.70      kristaps  849:                         * allowed to have an empty element, then start
1.142     schwarze  850:                         * a new scope.
1.70      kristaps  851:                         */
1.142     schwarze  852:                        if ((d == DELIM_CLOSE ||
                    853:                             (d == DELIM_MIDDLE && tok == MDOC_Fl)) &&
1.144     schwarze  854:                            !cnt && !scope && nc && mayopen) {
1.150     schwarze  855:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  856:                                scope = 1;
1.142     schwarze  857:                                cnt++;
1.150     schwarze  858:                                if (tok == MDOC_Nm)
1.142     schwarze  859:                                        mayopen = 0;
1.70      kristaps  860:                        }
                    861:                        /*
                    862:                         * Close out our scope, if one is open, before
                    863:                         * any punctuation.
                    864:                         */
1.224   ! schwarze  865:                        if (scope && tok != MDOC_Lk) {
1.149     schwarze  866:                                rew_elem(mdoc, tok);
1.224   ! schwarze  867:                                scope = 0;
        !           868:                                if (tok == MDOC_Fn)
        !           869:                                        mayopen = 0;
        !           870:                        }
1.142     schwarze  871:                } else if (mayopen && !scope) {
1.150     schwarze  872:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.70      kristaps  873:                        scope = 1;
1.142     schwarze  874:                        cnt++;
1.1       kristaps  875:                }
1.105     kristaps  876:
1.150     schwarze  877:                dword(mdoc, line, la, p, d,
1.219     schwarze  878:                    mdoc_macros[tok].flags & MDOC_JOIN);
1.39      kristaps  879:
                    880:                /*
1.144     schwarze  881:                 * If the first argument is a closing delimiter,
                    882:                 * do not suppress spacing before it.
                    883:                 */
                    884:
                    885:                if (firstarg && d == DELIM_CLOSE && !nc)
1.210     schwarze  886:                        mdoc->last->flags &= ~NODE_DELIMC;
1.144     schwarze  887:                firstarg = 0;
                    888:
                    889:                /*
1.39      kristaps  890:                 * `Fl' macros have their scope re-opened with each new
                    891:                 * word so that the `-' can be added to each one without
                    892:                 * having to parse out spaces.
                    893:                 */
1.150     schwarze  894:                if (scope && tok == MDOC_Fl) {
1.149     schwarze  895:                        rew_elem(mdoc, tok);
1.70      kristaps  896:                        scope = 0;
1.39      kristaps  897:                }
1.1       kristaps  898:        }
                    899:
1.218     schwarze  900:        if (scope && tok != MDOC_Lk) {
1.149     schwarze  901:                rew_elem(mdoc, tok);
1.218     schwarze  902:                scope = 0;
                    903:        }
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,
1.219     schwarze  918:                            line, ppos, roff_name[tok]);
1.150     schwarze  919:                }
1.7       kristaps  920:        }
1.150     schwarze  921:        if (nl)
                    922:                append_delims(mdoc, line, pos, buf);
1.218     schwarze  923:        if (scope)
                    924:                rew_elem(mdoc, tok);
1.1       kristaps  925: }
                    926:
1.151     schwarze  927: static void
1.1       kristaps  928: blk_full(MACRO_PROT_ARGS)
                    929: {
1.153     schwarze  930:        int               la, nl, parsed;
1.1       kristaps  931:        struct mdoc_arg  *arg;
1.185     schwarze  932:        struct roff_node *blk; /* Our own or a broken block. */
                    933:        struct roff_node *head; /* Our own head. */
                    934:        struct roff_node *body; /* Our own body. */
                    935:        struct roff_node *n;
1.59      kristaps  936:        enum margserr     ac, lac;
1.1       kristaps  937:        char             *p;
                    938:
1.119     schwarze  939:        nl = MDOC_NEWLINE & mdoc->flags;
1.138     schwarze  940:
1.177     schwarze  941:        if (buf[*pos] == '\0' && (tok == MDOC_Sh || tok == MDOC_Ss)) {
                    942:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.219     schwarze  943:                    line, ppos, roff_name[tok]);
1.177     schwarze  944:                return;
                    945:        }
                    946:
1.171     schwarze  947:        if ( ! (mdoc_macros[tok].flags & MDOC_EXPLICIT)) {
                    948:
                    949:                /* Here, tok is one of Sh Ss Nm Nd It. */
                    950:
                    951:                blk = NULL;
                    952:                for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze  953:                        if (n->flags & NODE_ENDED) {
                    954:                                if ( ! (n->flags & NODE_VALID))
                    955:                                        n->flags |= NODE_BROKEN;
1.183     schwarze  956:                                continue;
                    957:                        }
1.184     schwarze  958:                        if (n->type != ROFFT_BLOCK)
1.171     schwarze  959:                                continue;
1.183     schwarze  960:
1.171     schwarze  961:                        if (tok == MDOC_It && n->tok == MDOC_Bl) {
                    962:                                if (blk != NULL) {
                    963:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    964:                                            mdoc->parse, line, ppos,
                    965:                                            "It breaks %s",
1.219     schwarze  966:                                            roff_name[blk->tok]);
1.171     schwarze  967:                                        rew_pending(mdoc, blk);
                    968:                                }
                    969:                                break;
                    970:                        }
                    971:
                    972:                        if (mdoc_macros[n->tok].flags & MDOC_EXPLICIT) {
                    973:                                switch (tok) {
                    974:                                case MDOC_Sh:
                    975:                                case MDOC_Ss:
                    976:                                        mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                    977:                                            mdoc->parse, line, ppos,
1.219     schwarze  978:                                            "%s breaks %s", roff_name[tok],
                    979:                                            roff_name[n->tok]);
1.171     schwarze  980:                                        rew_pending(mdoc, n);
1.180     schwarze  981:                                        n = mdoc->last;
1.171     schwarze  982:                                        continue;
                    983:                                case MDOC_It:
                    984:                                        /* Delay in case it's astray. */
                    985:                                        blk = n;
                    986:                                        continue;
                    987:                                default:
                    988:                                        break;
                    989:                                }
                    990:                                break;
                    991:                        }
                    992:
                    993:                        /* Here, n is one of Sh Ss Nm Nd It. */
1.138     schwarze  994:
1.171     schwarze  995:                        if (tok != MDOC_Sh && (n->tok == MDOC_Sh ||
                    996:                            (tok != MDOC_Ss && (n->tok == MDOC_Ss ||
                    997:                             (tok != MDOC_It && n->tok == MDOC_It)))))
1.138     schwarze  998:                                break;
1.171     schwarze  999:
                   1000:                        /* Item breaking an explicit block. */
                   1001:
                   1002:                        if (blk != NULL) {
                   1003:                                mandoc_vmsg(MANDOCERR_BLK_BROKEN,
                   1004:                                    mdoc->parse, line, ppos,
1.219     schwarze 1005:                                    "It breaks %s", roff_name[blk->tok]);
1.171     schwarze 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);
1.221     schwarze 1020:                        roff_elem_alloc(mdoc, line, ppos, ROFF_br);
                   1021:                        rew_elem(mdoc, ROFF_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",
1.219     schwarze 1098:                            roff_name[tok], buf + la);
1.174     schwarze 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:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1117:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.45      kristaps 1118:                        continue;
                   1119:                }
                   1120:
1.74      kristaps 1121:                /* Open a head if one hasn't been opened. */
1.45      kristaps 1122:
1.150     schwarze 1123:                if (head == NULL)
1.190     schwarze 1124:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.45      kristaps 1125:
1.205     schwarze 1126:                if (ac == ARGS_PHRASE) {
1.151     schwarze 1127:
1.73      kristaps 1128:                        /*
1.74      kristaps 1129:                         * If we haven't opened a body yet, rewind the
                   1130:                         * head; if we have, rewind that instead.
                   1131:                         */
                   1132:
1.167     schwarze 1133:                        rew_last(mdoc, body == NULL ? head : body);
1.190     schwarze 1134:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.74      kristaps 1135:
1.205     schwarze 1136:                        /* Process to the tab or to the end of the line. */
1.74      kristaps 1137:
1.205     schwarze 1138:                        mdoc->flags |= MDOC_PHRASE;
1.191     schwarze 1139:                        parse_rest(mdoc, TOKEN_NONE, line, &la, buf);
1.205     schwarze 1140:                        mdoc->flags &= ~MDOC_PHRASE;
1.204     schwarze 1141:
                   1142:                        /* There may have been `Ta' macros. */
                   1143:
                   1144:                        while (body->next != NULL)
                   1145:                                body = body->next;
1.1       kristaps 1146:                        continue;
                   1147:                }
                   1148:
1.153     schwarze 1149:                if (macro_or_word(mdoc, tok, line, la, pos, buf, parsed))
1.151     schwarze 1150:                        break;
1.45      kristaps 1151:        }
1.1       kristaps 1152:
1.210     schwarze 1153:        if (blk->flags & NODE_VALID)
1.165     schwarze 1154:                return;
1.150     schwarze 1155:        if (head == NULL)
1.190     schwarze 1156:                head = roff_head_alloc(mdoc, line, ppos, tok);
1.174     schwarze 1157:        if (nl && tok != MDOC_Bd && tok != MDOC_Bl && tok != MDOC_Rs)
1.150     schwarze 1158:                append_delims(mdoc, line, pos, buf);
1.151     schwarze 1159:        if (body != NULL)
1.77      kristaps 1160:                goto out;
1.187     schwarze 1161:        if (find_pending(mdoc, tok, line, ppos, head))
1.183     schwarze 1162:                return;
1.47      kristaps 1163:
1.45      kristaps 1164:        /* Close out scopes to remain in a consistent state. */
                   1165:
1.167     schwarze 1166:        rew_last(mdoc, head);
1.190     schwarze 1167:        body = roff_body_alloc(mdoc, line, ppos, tok);
1.77      kristaps 1168: out:
1.150     schwarze 1169:        if (mdoc->flags & MDOC_FREECOL) {
1.167     schwarze 1170:                rew_last(mdoc, body);
                   1171:                rew_last(mdoc, blk);
1.150     schwarze 1172:                mdoc->flags &= ~MDOC_FREECOL;
                   1173:        }
1.1       kristaps 1174: }
                   1175:
1.151     schwarze 1176: static void
1.1       kristaps 1177: blk_part_imp(MACRO_PROT_ARGS)
                   1178: {
1.63      kristaps 1179:        int               la, nl;
1.55      kristaps 1180:        enum margserr     ac;
1.1       kristaps 1181:        char             *p;
1.185     schwarze 1182:        struct roff_node *blk; /* saved block context */
                   1183:        struct roff_node *body; /* saved body context */
                   1184:        struct roff_node *n;
1.1       kristaps 1185:
1.119     schwarze 1186:        nl = MDOC_NEWLINE & mdoc->flags;
1.63      kristaps 1187:
1.43      kristaps 1188:        /*
                   1189:         * A macro that spans to the end of the line.  This is generally
                   1190:         * (but not necessarily) called as the first macro.  The block
                   1191:         * has a head as the immediate child, which is always empty,
                   1192:         * followed by zero or more opening punctuation nodes, then the
                   1193:         * body (which may be empty, depending on the macro), then zero
                   1194:         * or more closing punctuation nodes.
                   1195:         */
1.32      kristaps 1196:
1.150     schwarze 1197:        blk = mdoc_block_alloc(mdoc, line, ppos, tok, NULL);
1.190     schwarze 1198:        rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
1.1       kristaps 1199:
1.43      kristaps 1200:        /*
                   1201:         * Open the body scope "on-demand", that is, after we've
                   1202:         * processed all our the leading delimiters (open parenthesis,
                   1203:         * etc.).
                   1204:         */
1.1       kristaps 1205:
1.43      kristaps 1206:        for (body = NULL; ; ) {
1.32      kristaps 1207:                la = *pos;
1.119     schwarze 1208:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1209:                if (ac == ARGS_EOLN || ac == ARGS_PUNCT)
1.1       kristaps 1210:                        break;
                   1211:
1.224   ! schwarze 1212:                if (body == NULL && mdoc_isdelim(p) == DELIM_OPEN) {
1.150     schwarze 1213:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.1       kristaps 1214:                        continue;
1.123     schwarze 1215:                }
1.1       kristaps 1216:
1.150     schwarze 1217:                if (body == NULL)
1.190     schwarze 1218:                        body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1219:
1.153     schwarze 1220:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1221:                        break;
1.1       kristaps 1222:        }
1.150     schwarze 1223:        if (body == NULL)
1.190     schwarze 1224:                body = roff_body_alloc(mdoc, line, ppos, tok);
1.43      kristaps 1225:
1.187     schwarze 1226:        if (find_pending(mdoc, tok, line, ppos, body))
1.183     schwarze 1227:                return;
                   1228:
1.164     schwarze 1229:        rew_last(mdoc, body);
1.150     schwarze 1230:        if (nl)
                   1231:                append_delims(mdoc, line, pos, buf);
1.166     schwarze 1232:        rew_pending(mdoc, blk);
1.117     schwarze 1233:
                   1234:        /* Move trailing .Ns out of scope. */
                   1235:
                   1236:        for (n = body->child; n && n->next; n = n->next)
                   1237:                /* Do nothing. */ ;
1.150     schwarze 1238:        if (n && n->tok == MDOC_Ns)
1.119     schwarze 1239:                mdoc_node_relink(mdoc, n);
1.1       kristaps 1240: }
                   1241:
1.151     schwarze 1242: static void
1.1       kristaps 1243: blk_part_exp(MACRO_PROT_ARGS)
                   1244: {
1.60      kristaps 1245:        int               la, nl;
1.55      kristaps 1246:        enum margserr     ac;
1.185     schwarze 1247:        struct roff_node *head; /* keep track of head */
1.1       kristaps 1248:        char             *p;
                   1249:
1.119     schwarze 1250:        nl = MDOC_NEWLINE & mdoc->flags;
1.60      kristaps 1251:
1.43      kristaps 1252:        /*
                   1253:         * The opening of an explicit macro having zero or more leading
                   1254:         * punctuation nodes; a head with optional single element (the
                   1255:         * case of `Eo'); and a body that may be empty.
                   1256:         */
1.32      kristaps 1257:
1.193     schwarze 1258:        roff_block_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1259:        head = NULL;
                   1260:        for (;;) {
1.32      kristaps 1261:                la = *pos;
1.119     schwarze 1262:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.150     schwarze 1263:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN)
1.1       kristaps 1264:                        break;
1.43      kristaps 1265:
                   1266:                /* Flush out leading punctuation. */
                   1267:
1.224   ! schwarze 1268:                if (head == NULL && mdoc_isdelim(p) == DELIM_OPEN) {
1.150     schwarze 1269:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
1.43      kristaps 1270:                        continue;
1.123     schwarze 1271:                }
1.43      kristaps 1272:
1.150     schwarze 1273:                if (head == NULL) {
1.190     schwarze 1274:                        head = roff_head_alloc(mdoc, line, ppos, tok);
1.163     schwarze 1275:                        if (tok == MDOC_Eo)  /* Not parsed. */
1.150     schwarze 1276:                                dword(mdoc, line, la, p, DELIM_MAX, 0);
1.163     schwarze 1277:                        rew_last(mdoc, head);
1.190     schwarze 1278:                        roff_body_alloc(mdoc, line, ppos, tok);
1.150     schwarze 1279:                        if (tok == MDOC_Eo)
1.43      kristaps 1280:                                continue;
1.1       kristaps 1281:                }
1.43      kristaps 1282:
1.153     schwarze 1283:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.151     schwarze 1284:                        break;
1.1       kristaps 1285:        }
                   1286:
1.43      kristaps 1287:        /* Clean-up to leave in a consistent state. */
1.32      kristaps 1288:
1.163     schwarze 1289:        if (head == NULL) {
1.190     schwarze 1290:                rew_last(mdoc, roff_head_alloc(mdoc, line, ppos, tok));
                   1291:                roff_body_alloc(mdoc, line, ppos, tok);
1.1       kristaps 1292:        }
1.150     schwarze 1293:        if (nl)
                   1294:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1295: }
                   1296:
1.151     schwarze 1297: static void
1.1       kristaps 1298: in_line_argn(MACRO_PROT_ARGS)
                   1299: {
1.53      kristaps 1300:        struct mdoc_arg *arg;
                   1301:        char            *p;
1.181     schwarze 1302:        enum margserr    ac;
1.219     schwarze 1303:        enum roff_tok    ntok;
1.181     schwarze 1304:        int              state; /* arg#; -1: not yet open; -2: closed */
                   1305:        int              la, maxargs, nl;
1.1       kristaps 1306:
1.156     schwarze 1307:        nl = mdoc->flags & MDOC_NEWLINE;
1.60      kristaps 1308:
1.46      kristaps 1309:        /*
                   1310:         * A line macro that has a fixed number of arguments (maxargs).
                   1311:         * Only open the scope once the first non-leading-punctuation is
                   1312:         * found (unless MDOC_IGNDELIM is noted, like in `Pf'), then
                   1313:         * keep it open until the maximum number of arguments are
                   1314:         * exhausted.
                   1315:         */
1.1       kristaps 1316:
                   1317:        switch (tok) {
1.131     schwarze 1318:        case MDOC_Ap:
                   1319:        case MDOC_Ns:
                   1320:        case MDOC_Ux:
1.1       kristaps 1321:                maxargs = 0;
                   1322:                break;
1.131     schwarze 1323:        case MDOC_Bx:
1.132     schwarze 1324:        case MDOC_Es:
1.131     schwarze 1325:        case MDOC_Xr:
1.42      kristaps 1326:                maxargs = 2;
                   1327:                break;
1.1       kristaps 1328:        default:
                   1329:                maxargs = 1;
                   1330:                break;
                   1331:        }
                   1332:
1.152     schwarze 1333:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.1       kristaps 1334:
1.181     schwarze 1335:        state = -1;
1.156     schwarze 1336:        p = NULL;
                   1337:        for (;;) {
1.32      kristaps 1338:                la = *pos;
1.119     schwarze 1339:                ac = mdoc_args(mdoc, line, pos, buf, tok, &p);
1.181     schwarze 1340:
                   1341:                if (ac == ARGS_WORD && state == -1 &&
                   1342:                    ! (mdoc_macros[tok].flags & MDOC_IGNDELIM) &&
                   1343:                    mdoc_isdelim(p) == DELIM_OPEN) {
                   1344:                        dword(mdoc, line, la, p, DELIM_OPEN, 0);
                   1345:                        continue;
                   1346:                }
                   1347:
                   1348:                if (state == -1 && tok != MDOC_In &&
                   1349:                    tok != MDOC_St && tok != MDOC_Xr) {
                   1350:                        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1351:                        state = 0;
                   1352:                }
                   1353:
1.156     schwarze 1354:                if (ac == ARGS_PUNCT || ac == ARGS_EOLN) {
1.181     schwarze 1355:                        if (abs(state) < 2 && tok == MDOC_Pf)
1.156     schwarze 1356:                                mandoc_vmsg(MANDOCERR_PF_SKIP,
                   1357:                                    mdoc->parse, line, ppos, "Pf %s",
                   1358:                                    p == NULL ? "at eol" : p);
1.1       kristaps 1359:                        break;
1.156     schwarze 1360:                }
1.1       kristaps 1361:
1.181     schwarze 1362:                if (state == maxargs) {
1.149     schwarze 1363:                        rew_elem(mdoc, tok);
1.181     schwarze 1364:                        state = -2;
1.46      kristaps 1365:                }
                   1366:
1.224   ! schwarze 1367:                ntok = (tok == MDOC_Pf && state == 0) ?
1.191     schwarze 1368:                    TOKEN_NONE : lookup(mdoc, tok, line, la, p);
1.54      kristaps 1369:
1.191     schwarze 1370:                if (ntok != TOKEN_NONE) {
1.181     schwarze 1371:                        if (state >= 0) {
1.149     schwarze 1372:                                rew_elem(mdoc, tok);
1.181     schwarze 1373:                                state = -2;
                   1374:                        }
1.151     schwarze 1375:                        mdoc_macro(mdoc, ntok, line, la, pos, buf);
1.1       kristaps 1376:                        break;
                   1377:                }
                   1378:
1.224   ! schwarze 1379:                if (mdoc_macros[tok].flags & MDOC_IGNDELIM ||
1.181     schwarze 1380:                    mdoc_isdelim(p) == DELIM_NONE) {
                   1381:                        if (state == -1) {
                   1382:                                mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
                   1383:                                state = 1;
                   1384:                        } else if (state >= 0)
                   1385:                                state++;
                   1386:                } else if (state >= 0) {
1.149     schwarze 1387:                        rew_elem(mdoc, tok);
1.181     schwarze 1388:                        state = -2;
1.1       kristaps 1389:                }
1.42      kristaps 1390:
1.150     schwarze 1391:                dword(mdoc, line, la, p, DELIM_MAX,
1.219     schwarze 1392:                    mdoc_macros[tok].flags & MDOC_JOIN);
1.1       kristaps 1393:        }
                   1394:
1.181     schwarze 1395:        if (state == -1) {
                   1396:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.219     schwarze 1397:                    line, ppos, roff_name[tok]);
1.181     schwarze 1398:                return;
1.156     schwarze 1399:        }
1.181     schwarze 1400:
                   1401:        if (state == 0 && tok == MDOC_Pf)
                   1402:                append_delims(mdoc, line, pos, buf);
                   1403:        if (state >= 0)
1.149     schwarze 1404:                rew_elem(mdoc, tok);
1.150     schwarze 1405:        if (nl)
                   1406:                append_delims(mdoc, line, pos, buf);
1.1       kristaps 1407: }
                   1408:
1.151     schwarze 1409: static void
1.1       kristaps 1410: in_line_eoln(MACRO_PROT_ARGS)
                   1411: {
1.185     schwarze 1412:        struct roff_node        *n;
1.170     schwarze 1413:        struct mdoc_arg         *arg;
1.1       kristaps 1414:
1.170     schwarze 1415:        if ((tok == MDOC_Pp || tok == MDOC_Lp) &&
                   1416:            ! (mdoc->flags & MDOC_SYNOPSIS)) {
                   1417:                n = mdoc->last;
1.189     schwarze 1418:                if (mdoc->next == ROFF_NEXT_SIBLING)
1.170     schwarze 1419:                        n = n->parent;
                   1420:                if (n->tok == MDOC_Nm)
1.198     schwarze 1421:                        rew_last(mdoc, n->parent);
1.178     schwarze 1422:        }
                   1423:
1.179     schwarze 1424:        if (buf[*pos] == '\0' &&
1.219     schwarze 1425:            (tok == MDOC_Fd || *roff_name[tok] == '%')) {
1.178     schwarze 1426:                mandoc_msg(MANDOCERR_MACRO_EMPTY, mdoc->parse,
1.219     schwarze 1427:                    line, ppos, roff_name[tok]);
1.178     schwarze 1428:                return;
1.170     schwarze 1429:        }
1.90      schwarze 1430:
1.152     schwarze 1431:        mdoc_argv(mdoc, line, tok, &arg, pos, buf);
1.150     schwarze 1432:        mdoc_elem_alloc(mdoc, line, ppos, tok, arg);
1.154     schwarze 1433:        if (parse_rest(mdoc, tok, line, pos, buf))
                   1434:                return;
                   1435:        rew_elem(mdoc, tok);
                   1436: }
                   1437:
                   1438: /*
                   1439:  * The simplest argument parser available: Parse the remaining
                   1440:  * words until the end of the phrase or line and return 0
                   1441:  * or until the next macro, call that macro, and return 1.
                   1442:  */
                   1443: static int
1.219     schwarze 1444: parse_rest(struct roff_man *mdoc, enum roff_tok tok,
                   1445:     int line, int *pos, char *buf)
1.154     schwarze 1446: {
                   1447:        int              la;
1.1       kristaps 1448:
                   1449:        for (;;) {
                   1450:                la = *pos;
1.153     schwarze 1451:                if (mdoc_args(mdoc, line, pos, buf, tok, NULL) == ARGS_EOLN)
1.202     schwarze 1452:                        return 0;
1.153     schwarze 1453:                if (macro_or_word(mdoc, tok, line, la, pos, buf, 1))
1.202     schwarze 1454:                        return 1;
1.1       kristaps 1455:        }
                   1456: }
                   1457:
1.151     schwarze 1458: static void
1.41      kristaps 1459: ctx_synopsis(MACRO_PROT_ARGS)
                   1460: {
1.60      kristaps 1461:
1.151     schwarze 1462:        if (~mdoc->flags & (MDOC_SYNOPSIS | MDOC_NEWLINE))
                   1463:                in_line(mdoc, tok, line, ppos, pos, buf);
                   1464:        else if (tok == MDOC_Nm)
                   1465:                blk_full(mdoc, tok, line, ppos, pos, buf);
                   1466:        else {
                   1467:                assert(tok == MDOC_Vt);
                   1468:                blk_part_imp(mdoc, tok, line, ppos, pos, buf);
                   1469:        }
1.1       kristaps 1470: }
                   1471:
1.24      kristaps 1472: /*
                   1473:  * Phrases occur within `Bl -column' entries, separated by `Ta' or tabs.
                   1474:  * They're unusual because they're basically free-form text until a
                   1475:  * macro is encountered.
                   1476:  */
1.151     schwarze 1477: static void
1.75      kristaps 1478: phrase_ta(MACRO_PROT_ARGS)
                   1479: {
1.185     schwarze 1480:        struct roff_node *body, *n;
1.75      kristaps 1481:
1.121     schwarze 1482:        /* Make sure we are in a column list or ignore this macro. */
1.151     schwarze 1483:
1.167     schwarze 1484:        body = NULL;
                   1485:        for (n = mdoc->last; n != NULL; n = n->parent) {
1.210     schwarze 1486:                if (n->flags & NODE_ENDED)
1.167     schwarze 1487:                        continue;
1.184     schwarze 1488:                if (n->tok == MDOC_It && n->type == ROFFT_BODY)
1.167     schwarze 1489:                        body = n;
1.208     schwarze 1490:                if (n->tok == MDOC_Bl && n->end == ENDBODY_NOT)
1.167     schwarze 1491:                        break;
                   1492:        }
                   1493:
1.151     schwarze 1494:        if (n == NULL || n->norm->Bl.type != LIST_column) {
1.137     schwarze 1495:                mandoc_msg(MANDOCERR_TA_STRAY, mdoc->parse,
1.139     schwarze 1496:                    line, ppos, "Ta");
1.151     schwarze 1497:                return;
1.121     schwarze 1498:        }
1.75      kristaps 1499:
1.121     schwarze 1500:        /* Advance to the next column. */
1.150     schwarze 1501:
1.167     schwarze 1502:        rew_last(mdoc, body);
1.190     schwarze 1503:        roff_body_alloc(mdoc, line, ppos, MDOC_It);
1.191     schwarze 1504:        parse_rest(mdoc, TOKEN_NONE, line, pos, buf);
1.75      kristaps 1505: }

CVSweb