Provide a cleanup function for the term_tab module, freeing memory

[mandoc.git] / mdoc.c

diff --git a/mdoc.c b/mdoc.c
index d91fe64f8563156fdd57fc690c3fb5f238ac5627..475a6aa0ddb3cac71309fe5fe5450f1ce110c825 100644 (file)
--- a/mdoc.c
+++ b/mdoc.c
@@ -1,19 +1,21 @@
-/*     $Id: mdoc.c,v 1.229 2014/11/19 03:08:17 schwarze Exp $ */
+/* $Id: mdoc.c,v 1.275 2020/04/06 10:16:17 schwarze Exp $ */

 /*
 /*

+ * Copyright (c) 2010, 2012-2018, 2020 Ingo Schwarze <schwarze@openbsd.org>

  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>

- * Copyright (c) 2010, 2012, 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>

  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  * copyright notice and this permission notice appear in all copies.
  *
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  * copyright notice and this permission notice appear in all copies.
  *

- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES

  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR

  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

+ *
+ * Top level and utility functions of the mdoc(7) parser for mandoc(1).

  */
 #include "config.h"
 
  */
 #include "config.h"
 


@@ -27,45 +29,13 @@
 #include <string.h>
 #include <time.h>
 
 #include <string.h>
 #include <time.h>
 

-#include "mdoc.h"
-#include "mandoc.h"

 #include "mandoc_aux.h"
 #include "mandoc_aux.h"

-#include "libmdoc.h"
+#include "mandoc.h"
+#include "roff.h"
+#include "mdoc.h"

 #include "libmandoc.h"
 #include "libmandoc.h"

-
-const  char *const __mdoc_macronames[MDOC_MAX + 1] = {
-       "Ap",           "Dd",           "Dt",           "Os",
-       "Sh",           "Ss",           "Pp",           "D1",
-       "Dl",           "Bd",           "Ed",           "Bl",
-       "El",           "It",           "Ad",           "An",
-       "Ar",           "Cd",           "Cm",           "Dv",
-       "Er",           "Ev",           "Ex",           "Fa",
-       "Fd",           "Fl",           "Fn",           "Ft",
-       "Ic",           "In",           "Li",           "Nd",
-       "Nm",           "Op",           "Ot",           "Pa",
-       "Rv",           "St",           "Va",           "Vt",
-       "Xr",           "%A",           "%B",           "%D",
-       "%I",           "%J",           "%N",           "%O",
-       "%P",           "%R",           "%T",           "%V",
-       "Ac",           "Ao",           "Aq",           "At",
-       "Bc",           "Bf",           "Bo",           "Bq",
-       "Bsx",          "Bx",           "Db",           "Dc",
-       "Do",           "Dq",           "Ec",           "Ef",
-       "Em",           "Eo",           "Fx",           "Ms",
-       "No",           "Ns",           "Nx",           "Ox",
-       "Pc",           "Pf",           "Po",           "Pq",
-       "Qc",           "Ql",           "Qo",           "Qq",
-       "Re",           "Rs",           "Sc",           "So",
-       "Sq",           "Sm",           "Sx",           "Sy",
-       "Tn",           "Ux",           "Xc",           "Xo",
-       "Fo",           "Fc",           "Oo",           "Oc",
-       "Bk",           "Ek",           "Bt",           "Hf",
-       "Fr",           "Ud",           "Lb",           "Lp",
-       "Lk",           "Mt",           "Brq",          "Bro",
-       "Brc",          "%C",           "Es",           "En",
-       "Dx",           "%Q",           "br",           "sp",
-       "%U",           "Ta",           "ll",           "text",
-       };
+#include "roff_int.h"
+#include "libmdoc.h"

 
 const  char *const __mdoc_argnames[MDOC_ARG_MAX] = {
        "split",                "nosplit",              "ragged",
 
 const  char *const __mdoc_argnames[MDOC_ARG_MAX] = {
        "split",                "nosplit",              "ragged",


@@ -77,168 +47,22 @@ const      char *const __mdoc_argnames[MDOC_ARG_MAX] = {
        "width",                "compact",              "std",
        "filled",               "words",                "emphasis",
        "symbolic",             "nested",               "centered"
        "width",                "compact",              "std",
        "filled",               "words",                "emphasis",
        "symbolic",             "nested",               "centered"

-       };
-
-const  char * const *mdoc_macronames = __mdoc_macronames;
+};

 const  char * const *mdoc_argnames = __mdoc_argnames;
 
 const  char * const *mdoc_argnames = __mdoc_argnames;
 

-static void              mdoc_node_free(struct mdoc_node *);
-static void              mdoc_node_unlink(struct mdoc *,
-                               struct mdoc_node *);
-static void              mdoc_free1(struct mdoc *);
-static void              mdoc_alloc1(struct mdoc *);
-static struct mdoc_node *node_alloc(struct mdoc *, int, int,
-                               enum mdoct, enum mdoc_type);
-static int               node_append(struct mdoc *,
-                               struct mdoc_node *);
-static int               mdoc_ptext(struct mdoc *, int, char *, int);
-static int               mdoc_pmacro(struct mdoc *, int, char *, int);
-
-
-const struct mdoc_node *
-mdoc_node(const struct mdoc *mdoc)
-{
-
-       return(mdoc->first);
-}
-
-const struct mdoc_meta *
-mdoc_meta(const struct mdoc *mdoc)
-{
-
-       return(&mdoc->meta);
-}
-
-/*
- * Frees volatile resources (parse tree, meta-data, fields).
- */
-static void
-mdoc_free1(struct mdoc *mdoc)
-{
-
-       if (mdoc->first)
-               mdoc_node_delete(mdoc, mdoc->first);
-       free(mdoc->meta.msec);
-       free(mdoc->meta.vol);
-       free(mdoc->meta.arch);
-       free(mdoc->meta.date);
-       free(mdoc->meta.title);
-       free(mdoc->meta.os);
-       free(mdoc->meta.name);
-}
-
-/*
- * Allocate all volatile resources (parse tree, meta-data, fields).
- */
-static void
-mdoc_alloc1(struct mdoc *mdoc)
-{
-
-       memset(&mdoc->meta, 0, sizeof(struct mdoc_meta));
-       mdoc->flags = 0;
-       mdoc->lastnamed = mdoc->lastsec = SEC_NONE;
-       mdoc->last = mandoc_calloc(1, sizeof(struct mdoc_node));
-       mdoc->first = mdoc->last;
-       mdoc->last->type = MDOC_ROOT;
-       mdoc->last->tok = MDOC_MAX;
-       mdoc->next = MDOC_NEXT_CHILD;
-}
-
-/*
- * Free up volatile resources (see mdoc_free1()) then re-initialises the
- * data with mdoc_alloc1().  After invocation, parse data has been reset
- * and the parser is ready for re-invocation on a new tree; however,
- * cross-parse non-volatile data is kept intact.
- */
-void
-mdoc_reset(struct mdoc *mdoc)
-{
-
-       mdoc_free1(mdoc);
-       mdoc_alloc1(mdoc);
-}
+static int               mdoc_ptext(struct roff_man *, int, char *, int);
+static int               mdoc_pmacro(struct roff_man *, int, char *, int);

 
 

-/*
- * Completely free up all volatile and non-volatile parse resources.
- * After invocation, the pointer is no longer usable.
- */
-void
-mdoc_free(struct mdoc *mdoc)
-{
-
-       mdoc_free1(mdoc);
-       free(mdoc);
-}
-
-/*
- * Allocate volatile and non-volatile parse resources.
- */
-struct mdoc *
-mdoc_alloc(struct roff *roff, struct mparse *parse,
-       const char *defos, int quick)
-{
-       struct mdoc     *p;
-
-       p = mandoc_calloc(1, sizeof(struct mdoc));
-
-       p->parse = parse;
-       p->defos = defos;
-       p->quick = quick;
-       p->roff = roff;
-
-       mdoc_hash_init();
-       mdoc_alloc1(p);
-       return(p);
-}
-
-int
-mdoc_endparse(struct mdoc *mdoc)
-{
-
-       return(mdoc_macroend(mdoc));
-}
-
-int
-mdoc_addeqn(struct mdoc *mdoc, const struct eqn *ep)
-{
-       struct mdoc_node *n;
-
-       n = node_alloc(mdoc, ep->ln, ep->pos, MDOC_MAX, MDOC_EQN);
-       n->eqn = ep;
-       if (ep->ln > mdoc->last->line)
-               n->flags |= MDOC_LINE;
-
-       if ( ! node_append(mdoc, n))
-               return(0);
-
-       mdoc->next = MDOC_NEXT_SIBLING;
-       return(1);
-}
-
-int
-mdoc_addspan(struct mdoc *mdoc, const struct tbl_span *sp)
-{
-       struct mdoc_node *n;
-
-       n = node_alloc(mdoc, sp->line, 0, MDOC_MAX, MDOC_TBL);
-       n->span = sp;
-
-       if ( ! node_append(mdoc, n))
-               return(0);
-
-       mdoc->next = MDOC_NEXT_SIBLING;
-       return(1);
-}

 
 /*
  * Main parse routine.  Parses a single line -- really just hands off to
  * the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).
  */
 int
 
 /*
  * Main parse routine.  Parses a single line -- really just hands off to
  * the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).
  */
 int

-mdoc_parseln(struct mdoc *mdoc, int ln, char *buf, int offs)
+mdoc_parseln(struct roff_man *mdoc, int ln, char *buf, int offs)

 {
 
 {
 

-       if (mdoc->last->type != MDOC_EQN || ln > mdoc->last->line)
+       if (mdoc->last->type != ROFFT_EQN || ln > mdoc->last->line)

                mdoc->flags |= MDOC_NEWLINE;
 
        /*
                mdoc->flags |= MDOC_NEWLINE;
 
        /*


@@ -252,243 +76,72 @@ mdoc_parseln(struct mdoc *mdoc, int ln, char *buf, int offs)
        else
                mdoc->flags &= ~MDOC_SYNOPSIS;
 
        else
                mdoc->flags &= ~MDOC_SYNOPSIS;
 

-       return(roff_getcontrol(mdoc->roff, buf, &offs) ?
+       return roff_getcontrol(mdoc->roff, buf, &offs) ?

            mdoc_pmacro(mdoc, ln, buf, offs) :
            mdoc_pmacro(mdoc, ln, buf, offs) :

-           mdoc_ptext(mdoc, ln, buf, offs));
-}
-
-int
-mdoc_macro(MACRO_PROT_ARGS)
-{
-       assert(tok < MDOC_MAX);
-
-       if (mdoc->flags & MDOC_PBODY) {
-               if (tok == MDOC_Dt) {
-                       mandoc_vmsg(MANDOCERR_DT_LATE,
-                           mdoc->parse, line, ppos,
-                           "Dt %s", buf + *pos);
-                       return(1);
-               }
-       } else if ( ! (mdoc_macros[tok].flags & MDOC_PROLOGUE)) {
-               if (mdoc->meta.title == NULL) {
-                       mandoc_vmsg(MANDOCERR_DT_NOTITLE,
-                           mdoc->parse, line, ppos, "%s %s",
-                           mdoc_macronames[tok], buf + *pos);
-                       mdoc->meta.title = mandoc_strdup("UNTITLED");
-               }
-               if (NULL == mdoc->meta.vol)
-                       mdoc->meta.vol = mandoc_strdup("LOCAL");
-               mdoc->flags |= MDOC_PBODY;
-       }
-
-       return((*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf));
-}
-
-
-static int
-node_append(struct mdoc *mdoc, struct mdoc_node *p)
-{
-
-       assert(mdoc->last);
-       assert(mdoc->first);
-       assert(MDOC_ROOT != p->type);
-
-       switch (mdoc->next) {
-       case MDOC_NEXT_SIBLING:
-               mdoc->last->next = p;
-               p->prev = mdoc->last;
-               p->parent = mdoc->last->parent;
-               break;
-       case MDOC_NEXT_CHILD:
-               mdoc->last->child = p;
-               p->parent = mdoc->last;
-               break;
-       default:
-               abort();
-               /* NOTREACHED */
-       }
-
-       p->parent->nchild++;
-
-       /*
-        * Copy over the normalised-data pointer of our parent.  Not
-        * everybody has one, but copying a null pointer is fine.
-        */
-
-       switch (p->type) {
-       case MDOC_BODY:
-               if (ENDBODY_NOT != p->end)
-                       break;
-               /* FALLTHROUGH */
-       case MDOC_TAIL:
-               /* FALLTHROUGH */
-       case MDOC_HEAD:
-               p->norm = p->parent->norm;
-               break;
-       default:
-               break;
-       }
-
-       if ( ! mdoc_valid_pre(mdoc, p))
-               return(0);
-
-       switch (p->type) {
-       case MDOC_HEAD:
-               assert(MDOC_BLOCK == p->parent->type);
-               p->parent->head = p;
-               break;
-       case MDOC_TAIL:
-               assert(MDOC_BLOCK == p->parent->type);
-               p->parent->tail = p;
-               break;
-       case MDOC_BODY:
-               if (p->end)
-                       break;
-               assert(MDOC_BLOCK == p->parent->type);
-               p->parent->body = p;
-               break;
-       default:
-               break;
-       }
-
-       mdoc->last = p;
-
-       switch (p->type) {
-       case MDOC_TBL:
-               /* FALLTHROUGH */
-       case MDOC_TEXT:
-               if ( ! mdoc_valid_post(mdoc))
-                       return(0);
-               break;
-       default:
-               break;
-       }
-
-       return(1);
-}
-
-static struct mdoc_node *
-node_alloc(struct mdoc *mdoc, int line, int pos,
-               enum mdoct tok, enum mdoc_type type)
-{
-       struct mdoc_node *p;
-
-       p = mandoc_calloc(1, sizeof(struct mdoc_node));
-       p->sec = mdoc->lastsec;
-       p->line = line;
-       p->pos = pos;
-       p->lastline = line;
-       p->tok = tok;
-       p->type = type;
-
-       /* Flag analysis. */
-
-       if (MDOC_SYNOPSIS & mdoc->flags)
-               p->flags |= MDOC_SYNPRETTY;
-       else
-               p->flags &= ~MDOC_SYNPRETTY;
-       if (MDOC_NEWLINE & mdoc->flags)
-               p->flags |= MDOC_LINE;
-       mdoc->flags &= ~MDOC_NEWLINE;
-
-       return(p);
-}
-
-int
-mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, enum mdoct tok)
-{
-       struct mdoc_node *p;
-
-       p = node_alloc(mdoc, line, pos, tok, MDOC_TAIL);
-       if ( ! node_append(mdoc, p))
-               return(0);
-       mdoc->next = MDOC_NEXT_CHILD;
-       return(1);
+           mdoc_ptext(mdoc, ln, buf, offs);

 }
 
 }
 

-int
-mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, enum mdoct tok)
-{
-       struct mdoc_node *p;
-
-       assert(mdoc->first);
-       assert(mdoc->last);
-
-       p = node_alloc(mdoc, line, pos, tok, MDOC_HEAD);
-       if ( ! node_append(mdoc, p))
-               return(0);
-       mdoc->next = MDOC_NEXT_CHILD;
-       return(1);
-}
-
-int
-mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, enum mdoct tok)
+void
+mdoc_tail_alloc(struct roff_man *mdoc, int line, int pos, enum roff_tok tok)

 {
 {

-       struct mdoc_node *p;
+       struct roff_node *p;

 
 

-       p = node_alloc(mdoc, line, pos, tok, MDOC_BODY);
-       if ( ! node_append(mdoc, p))
-               return(0);
-       mdoc->next = MDOC_NEXT_CHILD;
-       return(1);
+       p = roff_node_alloc(mdoc, line, pos, ROFFT_TAIL, tok);
+       roff_node_append(mdoc, p);
+       mdoc->next = ROFF_NEXT_CHILD;

 }
 
 }
 

-int
-mdoc_endbody_alloc(struct mdoc *mdoc, int line, int pos, enum mdoct tok,
-               struct mdoc_node *body, enum mdoc_endbody end)
+struct roff_node *
+mdoc_endbody_alloc(struct roff_man *mdoc, int line, int pos,
+    enum roff_tok tok, struct roff_node *body)

 {
 {

-       struct mdoc_node *p;
+       struct roff_node *p;

 
 

-       p = node_alloc(mdoc, line, pos, tok, MDOC_BODY);
-       p->pending = body;
+       body->flags |= NODE_ENDED;
+       body->parent->flags |= NODE_ENDED;
+       p = roff_node_alloc(mdoc, line, pos, ROFFT_BODY, tok);
+       p->body = body;

        p->norm = body->norm;
        p->norm = body->norm;

-       p->end = end;
-       if ( ! node_append(mdoc, p))
-               return(0);
-       mdoc->next = MDOC_NEXT_SIBLING;
-       return(1);
+       p->end = ENDBODY_SPACE;
+       roff_node_append(mdoc, p);
+       mdoc->next = ROFF_NEXT_SIBLING;
+       return p;

 }
 
 }
 

-int
-mdoc_block_alloc(struct mdoc *mdoc, int line, int pos,
-               enum mdoct tok, struct mdoc_arg *args)
+struct roff_node *
+mdoc_block_alloc(struct roff_man *mdoc, int line, int pos,
+    enum roff_tok tok, struct mdoc_arg *args)

 {
 {

-       struct mdoc_node *p;
+       struct roff_node *p;

 
 

-       p = node_alloc(mdoc, line, pos, tok, MDOC_BLOCK);
+       p = roff_node_alloc(mdoc, line, pos, ROFFT_BLOCK, tok);

        p->args = args;
        if (p->args)
                (args->refcnt)++;
 
        switch (tok) {
        case MDOC_Bd:
        p->args = args;
        if (p->args)
                (args->refcnt)++;
 
        switch (tok) {
        case MDOC_Bd:

-               /* FALLTHROUGH */

        case MDOC_Bf:
        case MDOC_Bf:

-               /* FALLTHROUGH */

        case MDOC_Bl:
        case MDOC_Bl:

-               /* FALLTHROUGH */

        case MDOC_En:
        case MDOC_En:

-               /* FALLTHROUGH */

        case MDOC_Rs:
                p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
                break;
        default:
                break;
        }
        case MDOC_Rs:
                p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
                break;
        default:
                break;
        }

-
-       if ( ! node_append(mdoc, p))
-               return(0);
-       mdoc->next = MDOC_NEXT_CHILD;
-       return(1);
+       roff_node_append(mdoc, p);
+       mdoc->next = ROFF_NEXT_CHILD;
+       return p;

 }
 
 }
 

-int
-mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos,
-               enum mdoct tok, struct mdoc_arg *args)
+void
+mdoc_elem_alloc(struct roff_man *mdoc, int line, int pos,
+     enum roff_tok tok, struct mdoc_arg *args)

 {
 {

-       struct mdoc_node *p;
+       struct roff_node *p;

 
 

-       p = node_alloc(mdoc, line, pos, tok, MDOC_ELEM);
+       p = roff_node_alloc(mdoc, line, pos, ROFFT_ELEM, tok);

        p->args = args;
        if (p->args)
                (args->refcnt)++;
        p->args = args;
        if (p->args)
                (args->refcnt)++;


@@ -500,113 +153,8 @@ mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos,
        default:
                break;
        }
        default:
                break;
        }

-
-       if ( ! node_append(mdoc, p))
-               return(0);
-       mdoc->next = MDOC_NEXT_CHILD;
-       return(1);
-}
-
-int
-mdoc_word_alloc(struct mdoc *mdoc, int line, int pos, const char *p)
-{
-       struct mdoc_node *n;
-
-       n = node_alloc(mdoc, line, pos, MDOC_MAX, MDOC_TEXT);
-       n->string = roff_strdup(mdoc->roff, p);
-
-       if ( ! node_append(mdoc, n))
-               return(0);
-
-       mdoc->next = MDOC_NEXT_SIBLING;
-       return(1);
-}
-
-void
-mdoc_word_append(struct mdoc *mdoc, const char *p)
-{
-       struct mdoc_node        *n;
-       char                    *addstr, *newstr;
-
-       n = mdoc->last;
-       addstr = roff_strdup(mdoc->roff, p);
-       mandoc_asprintf(&newstr, "%s %s", n->string, addstr);
-       free(addstr);
-       free(n->string);
-       n->string = newstr;
-       mdoc->next = MDOC_NEXT_SIBLING;
-}
-
-static void
-mdoc_node_free(struct mdoc_node *p)
-{
-
-       if (MDOC_BLOCK == p->type || MDOC_ELEM == p->type)
-               free(p->norm);
-       if (p->string)
-               free(p->string);
-       if (p->args)
-               mdoc_argv_free(p->args);
-       free(p);
-}
-
-static void
-mdoc_node_unlink(struct mdoc *mdoc, struct mdoc_node *n)
-{
-
-       /* Adjust siblings. */
-
-       if (n->prev)
-               n->prev->next = n->next;
-       if (n->next)
-               n->next->prev = n->prev;
-
-       /* Adjust parent. */
-
-       if (n->parent) {
-               n->parent->nchild--;
-               if (n->parent->child == n)
-                       n->parent->child = n->prev ? n->prev : n->next;
-               if (n->parent->last == n)
-                       n->parent->last = n->prev ? n->prev : NULL;
-       }
-
-       /* Adjust parse point, if applicable. */
-
-       if (mdoc && mdoc->last == n) {
-               if (n->prev) {
-                       mdoc->last = n->prev;
-                       mdoc->next = MDOC_NEXT_SIBLING;
-               } else {
-                       mdoc->last = n->parent;
-                       mdoc->next = MDOC_NEXT_CHILD;
-               }
-       }
-
-       if (mdoc && mdoc->first == n)
-               mdoc->first = NULL;
-}
-
-void
-mdoc_node_delete(struct mdoc *mdoc, struct mdoc_node *p)
-{
-
-       while (p->child) {
-               assert(p->nchild);
-               mdoc_node_delete(mdoc, p->child);
-       }
-       assert(0 == p->nchild);
-
-       mdoc_node_unlink(mdoc, p);
-       mdoc_node_free(p);
-}
-
-int
-mdoc_node_relink(struct mdoc *mdoc, struct mdoc_node *p)
-{
-
-       mdoc_node_unlink(mdoc, p);
-       return(node_append(mdoc, p));
+       roff_node_append(mdoc, p);
+       mdoc->next = ROFF_NEXT_CHILD;

 }
 
 /*
 }
 
 /*


@@ -614,35 +162,29 @@ mdoc_node_relink(struct mdoc *mdoc, struct mdoc_node *p)
  * control character.
  */
 static int
  * control character.
  */
 static int

-mdoc_ptext(struct mdoc *mdoc, int line, char *buf, int offs)
+mdoc_ptext(struct roff_man *mdoc, int line, char *buf, int offs)

 {
 {

+       struct roff_node *n;
+       const char       *cp, *sp;

        char             *c, *ws, *end;
        char             *c, *ws, *end;

-       struct mdoc_node *n;

 
 

-       assert(mdoc->last);

        n = mdoc->last;
 
        /*
        n = mdoc->last;
 
        /*

-        * Divert directly to list processing if we're encountering a
-        * columnar MDOC_BLOCK with or without a prior MDOC_BLOCK entry
-        * (a MDOC_BODY means it's already open, in which case we should
-        * process within its context in the normal way).
+        * If a column list contains plain text, assume an implicit item
+        * macro.  This can happen one or more times at the beginning
+        * of such a list, intermixed with non-It mdoc macros and with
+        * nodes generated on the roff level, for example by tbl.

         */
 
         */
 

-       if (MDOC_Bl == n->tok && MDOC_BODY == n->type &&
-           LIST_column == n->norm->Bl.type) {
-               /* `Bl' is open without any children. */
+       if ((n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
+            n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) ||
+           (n->parent != NULL && n->parent->tok == MDOC_Bl &&
+            n->parent->norm->Bl.type == LIST_column)) {

                mdoc->flags |= MDOC_FREECOL;
                mdoc->flags |= MDOC_FREECOL;

-               return(mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf));
-       }
-
-       if (MDOC_It == n->tok && MDOC_BLOCK == n->type &&
-           NULL != n->parent &&
-           MDOC_Bl == n->parent->tok &&
-           LIST_column == n->parent->norm->Bl.type) {
-               /* `Bl' has block-level `It' children. */
-               mdoc->flags |= MDOC_FREECOL;
-               return(mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf));
+               (*mdoc_macro(MDOC_It)->fp)(mdoc, MDOC_It,
+                   line, offs, &offs, buf);
+               return 1;

        }
 
        /*
        }
 
        /*


@@ -670,7 +212,7 @@ mdoc_ptext(struct mdoc *mdoc, int line, char *buf, int offs)
                         * Strip trailing tabs in literal context only;
                         * outside, they affect the next line.
                         */
                         * Strip trailing tabs in literal context only;
                         * outside, they affect the next line.
                         */

-                       if (MDOC_LITERAL & mdoc->flags)
+                       if (mdoc->flags & ROFF_NOFILL)

                                continue;
                        break;
                case '\\':
                                continue;
                        break;
                case '\\':


@@ -687,31 +229,41 @@ mdoc_ptext(struct mdoc *mdoc, int line, char *buf, int offs)
        *end = '\0';
 
        if (ws)
        *end = '\0';
 
        if (ws)

-               mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
-                   line, (int)(ws-buf), NULL);
-
-       if ('\0' == buf[offs] && ! (MDOC_LITERAL & mdoc->flags)) {
-               mandoc_msg(MANDOCERR_FI_BLANK, mdoc->parse,
-                   line, (int)(c - buf), NULL);
+               mandoc_msg(MANDOCERR_SPACE_EOL, line, (int)(ws - buf), NULL);

 
 

-               /*
-                * Insert a `sp' in the case of a blank line.  Technically,
-                * blank lines aren't allowed, but enough manuals assume this
-                * behaviour that we want to work around it.
-                */
-               if ( ! mdoc_elem_alloc(mdoc, line, offs, MDOC_sp, NULL))
-                       return(0);
-
-               mdoc->next = MDOC_NEXT_SIBLING;
+       /*
+        * Blank lines are allowed in no-fill mode
+        * and cancel preceding \c,
+        * but add a single vertical space elsewhere.
+        */

 
 

-               return(mdoc_valid_post(mdoc));
+       if (buf[offs] == '\0' && (mdoc->flags & ROFF_NOFILL) == 0) {
+               switch (mdoc->last->type) {
+               case ROFFT_TEXT:
+                       sp = mdoc->last->string;
+                       cp = end = strchr(sp, '\0') - 2;
+                       if (cp < sp || cp[0] != '\\' || cp[1] != 'c')
+                               break;
+                       while (cp > sp && cp[-1] == '\\')
+                               cp--;
+                       if ((end - cp) % 2)
+                               break;
+                       *end = '\0';
+                       return 1;
+               default:
+                       break;
+               }
+               mandoc_msg(MANDOCERR_FI_BLANK, line, (int)(c - buf), NULL);
+               roff_elem_alloc(mdoc, line, offs, ROFF_sp);
+               mdoc->last->flags |= NODE_VALID | NODE_ENDED;
+               mdoc->next = ROFF_NEXT_SIBLING;
+               return 1;

        }
 
        }
 

-       if ( ! mdoc_word_alloc(mdoc, line, offs, buf+offs))
-               return(0);
+       roff_word_alloc(mdoc, line, offs, buf+offs);

 
 

-       if (MDOC_LITERAL & mdoc->flags)
-               return(1);
+       if (mdoc->flags & ROFF_NOFILL)
+               return 1;

 
        /*
         * End-of-sentence check.  If the last character is an unescaped
 
        /*
         * End-of-sentence check.  If the last character is an unescaped


@@ -722,9 +274,29 @@ mdoc_ptext(struct mdoc *mdoc, int line, char *buf, int offs)
        assert(buf < end);
 
        if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))
        assert(buf < end);
 
        if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))

-               mdoc->last->flags |= MDOC_EOS;
+               mdoc->last->flags |= NODE_EOS;
+
+       for (c = buf + offs; c != NULL; c = strchr(c + 1, '.')) {
+               if (c - buf < offs + 2)
+                       continue;
+               if (end - c < 3)
+                       break;
+               if (c[1] != ' ' ||
+                   isalnum((unsigned char)c[-2]) == 0 ||
+                   isalnum((unsigned char)c[-1]) == 0 ||
+                   (c[-2] == 'n' && c[-1] == 'c') ||
+                   (c[-2] == 'v' && c[-1] == 's'))
+                       continue;
+               c += 2;
+               if (*c == ' ')
+                       c++;
+               if (*c == ' ')
+                       c++;
+               if (isupper((unsigned char)(*c)))
+                       mandoc_msg(MANDOCERR_EOS, line, (int)(c - buf), NULL);
+       }

 
 

-       return(1);
+       return 1;

 }
 
 /*
 }
 
 /*


@@ -732,33 +304,25 @@ mdoc_ptext(struct mdoc *mdoc, int line, char *buf, int offs)
  * character.
  */
 static int
  * character.
  */
 static int

-mdoc_pmacro(struct mdoc *mdoc, int ln, char *buf, int offs)
+mdoc_pmacro(struct roff_man *mdoc, int ln, char *buf, int offs)

 {
 {

-       struct mdoc_node *n;
+       struct roff_node *n;

        const char       *cp;
        const char       *cp;

-       enum mdoct        tok;
-       int               i, sv;
-       char              mac[5];
+       size_t            sz;
+       enum roff_tok     tok;
+       int               sv;

 
 

-       sv = offs;
-
-       /*
-        * Copy the first word into a nil-terminated buffer.
-        * Stop when a space, tab, escape, or eoln is encountered.
-        */
+       /* Determine the line macro. */

 
 

-       i = 0;
-       while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
-               mac[i++] = buf[offs++];
-
-       mac[i] = '\0';
-
-       tok = (i > 1 && i < 4) ? mdoc_hash_find(mac) : MDOC_MAX;
-
-       if (tok == MDOC_MAX) {
-               mandoc_msg(MANDOCERR_MACRO, mdoc->parse,
-                   ln, sv, buf + sv - 1);
-               return(1);
+       sv = offs;
+       tok = TOKEN_NONE;
+       for (sz = 0; sz < 4 && strchr(" \t\\", buf[offs]) == NULL; sz++)
+               offs++;
+       if (sz == 2 || sz == 3)
+               tok = roffhash_find(mdoc->mdocmac, buf + sv, sz);
+       if (tok == TOKEN_NONE) {
+               mandoc_msg(MANDOCERR_MACRO, ln, sv, "%s", buf + sv - 1);
+               return 1;

        }
 
        /* Skip a leading escape sequence or tab. */
        }
 
        /* Skip a leading escape sequence or tab. */


@@ -778,7 +342,7 @@ mdoc_pmacro(struct mdoc *mdoc, int ln, char *buf, int offs)
 
        /* Jump to the next non-whitespace word. */
 
 
        /* Jump to the next non-whitespace word. */
 

-       while (buf[offs] && ' ' == buf[offs])
+       while (buf[offs] == ' ')

                offs++;
 
        /*
                offs++;
 
        /*


@@ -787,57 +351,47 @@ mdoc_pmacro(struct mdoc *mdoc, int ln, char *buf, int offs)
         */
 
        if ('\0' == buf[offs] && ' ' == buf[offs - 1])
         */
 
        if ('\0' == buf[offs] && ' ' == buf[offs - 1])

-               mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
-                   ln, offs - 1, NULL);
+               mandoc_msg(MANDOCERR_SPACE_EOL, ln, offs - 1, NULL);

 
        /*
 
        /*

-        * If an initial macro or a list invocation, divert directly
-        * into macro processing.
+        * If an initial or transparent macro or a list invocation,
+        * divert directly into macro processing.

         */
 
         */
 

-       if (NULL == mdoc->last || MDOC_It == tok || MDOC_El == tok)
-               return(mdoc_macro(mdoc, tok, ln, sv, &offs, buf));
-

        n = mdoc->last;
        n = mdoc->last;

-       assert(mdoc->last);
-
-       /*
-        * If the first macro of a `Bl -column', open an `It' block
-        * context around the parsed macro.
-        */
-
-       if (MDOC_Bl == n->tok && MDOC_BODY == n->type &&
-           LIST_column == n->norm->Bl.type) {
-               mdoc->flags |= MDOC_FREECOL;
-               return(mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf));
+       if (n == NULL || tok == MDOC_It || tok == MDOC_El ||
+           roff_tok_transparent(tok)) {
+               (*mdoc_macro(tok)->fp)(mdoc, tok, ln, sv, &offs, buf);
+               return 1;

        }
 
        /*
        }
 
        /*

-        * If we're following a block-level `It' within a `Bl -column'
-        * context (perhaps opened in the above block or in ptext()),
-        * then open an `It' block context around the parsed macro.
+        * If a column list contains a non-It macro, assume an implicit
+        * item macro.  This can happen one or more times at the
+        * beginning of such a list, intermixed with text lines and
+        * with nodes generated on the roff level, for example by tbl.

         */
 
         */
 

-       if (MDOC_It == n->tok && MDOC_BLOCK == n->type &&
-           NULL != n->parent &&
-           MDOC_Bl == n->parent->tok &&
-           LIST_column == n->parent->norm->Bl.type) {
+       if ((n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
+            n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) ||
+           (n->parent != NULL && n->parent->tok == MDOC_Bl &&
+            n->parent->norm->Bl.type == LIST_column)) {

                mdoc->flags |= MDOC_FREECOL;
                mdoc->flags |= MDOC_FREECOL;

-               return(mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf));
+               (*mdoc_macro(MDOC_It)->fp)(mdoc, MDOC_It, ln, sv, &sv, buf);
+               return 1;

        }
 
        /* Normal processing of a macro. */
 
        }
 
        /* Normal processing of a macro. */
 

-       if ( ! mdoc_macro(mdoc, tok, ln, sv, &offs, buf))
-               return(0);
+       (*mdoc_macro(tok)->fp)(mdoc, tok, ln, sv, &offs, buf);

 
        /* In quick mode (for mandocdb), abort after the NAME section. */
 
        if (mdoc->quick && MDOC_Sh == tok &&
            SEC_NAME != mdoc->last->sec)
 
        /* In quick mode (for mandocdb), abort after the NAME section. */
 
        if (mdoc->quick && MDOC_Sh == tok &&
            SEC_NAME != mdoc->last->sec)

-               return(2);
+               return 2;

 
 

-       return(1);
+       return 1;

 }
 
 enum mdelim
 }
 
 enum mdelim


@@ -845,82 +399,35 @@ mdoc_isdelim(const char *p)
 {
 
        if ('\0' == p[0])
 {
 
        if ('\0' == p[0])

-               return(DELIM_NONE);
+               return DELIM_NONE;

 
        if ('\0' == p[1])
                switch (p[0]) {
                case '(':
 
        if ('\0' == p[1])
                switch (p[0]) {
                case '(':

-                       /* FALLTHROUGH */

                case '[':
                case '[':

-                       return(DELIM_OPEN);
+                       return DELIM_OPEN;

                case '|':
                case '|':

-                       return(DELIM_MIDDLE);
+                       return DELIM_MIDDLE;

                case '.':
                case '.':

-                       /* FALLTHROUGH */

                case ',':
                case ',':

-                       /* FALLTHROUGH */

                case ';':
                case ';':

-                       /* FALLTHROUGH */

                case ':':
                case ':':

-                       /* FALLTHROUGH */

                case '?':
                case '?':

-                       /* FALLTHROUGH */

                case '!':
                case '!':

-                       /* FALLTHROUGH */

                case ')':
                case ')':

-                       /* FALLTHROUGH */

                case ']':
                case ']':

-                       return(DELIM_CLOSE);
+                       return DELIM_CLOSE;

                default:
                default:

-                       return(DELIM_NONE);
+                       return DELIM_NONE;

                }
 
        if ('\\' != p[0])
                }
 
        if ('\\' != p[0])

-               return(DELIM_NONE);
+               return DELIM_NONE;

 
        if (0 == strcmp(p + 1, "."))
 
        if (0 == strcmp(p + 1, "."))

-               return(DELIM_CLOSE);
+               return DELIM_CLOSE;

        if (0 == strcmp(p + 1, "fR|\\fP"))
        if (0 == strcmp(p + 1, "fR|\\fP"))

-               return(DELIM_MIDDLE);
-
-       return(DELIM_NONE);
-}
-
-void
-mdoc_deroff(char **dest, const struct mdoc_node *n)
-{
-       char    *cp;
-       size_t   sz;
-
-       if (MDOC_TEXT != n->type) {
-               for (n = n->child; n; n = n->next)
-                       mdoc_deroff(dest, n);
-               return;
-       }
-
-       /* Skip leading whitespace. */
-
-       for (cp = n->string; '\0' != *cp; cp++)
-               if (0 == isspace((unsigned char)*cp))
-                       break;
-
-       /* Skip trailing whitespace. */
-
-       for (sz = strlen(cp); sz; sz--)
-               if (0 == isspace((unsigned char)cp[sz-1]))
-                       break;
-
-       /* Skip empty strings. */
-
-       if (0 == sz)
-               return;
-
-       if (NULL == *dest) {
-               *dest = mandoc_strndup(cp, sz);
-               return;
-       }
+               return DELIM_MIDDLE;

 
 

-       mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
-       free(*dest);
-       *dest = cp;
+       return DELIM_NONE;

 }
 }