Do not segfault in makewhatis -Q if the next .SH after .SH NAME

[mandoc.git] / man.c

diff --git a/man.c b/man.c
index da58c662e484201f1d70c25863195ab33880c139..ac69d1763714f2d8611b139181a1cd7a51ce9ca2 100644 (file)
--- a/man.c
+++ b/man.c
@@ -1,6 +1,8 @@
-/*     $Id: man.c,v 1.98 2011/02/06 22:02:58 kristaps Exp $ */
+/*     $Id: man.c,v 1.130 2014/05/07 14:14:17 schwarze Exp $ */

 /*
 /*

- * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2013, 2014 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011 Joerg Sonnenberger <joerg@netbsd.org>

  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
  *
  * Permission to use, copy, modify, and distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above


@@ -21,37 +23,39 @@
 #include <sys/types.h>
 
 #include <assert.h>
 #include <sys/types.h>
 
 #include <assert.h>

+#include <ctype.h>

 #include <stdarg.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 
 #include <stdarg.h>
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
 

+#include "man.h"

 #include "mandoc.h"
 #include "mandoc.h"

+#include "mandoc_aux.h"

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

-const  char *const __man_macronames[MAN_MAX] = {                
+const  char *const __man_macronames[MAN_MAX] = {

        "br",           "TH",           "SH",           "SS",
        "br",           "TH",           "SH",           "SS",

-       "TP",           "LP",           "PP",           "P",
+       "TP",           "LP",           "PP",           "P",

        "IP",           "HP",           "SM",           "SB",
        "BI",           "IB",           "BR",           "RB",
        "R",            "B",            "I",            "IR",
        "RI",           "na",           "sp",           "nf",
        "fi",           "RE",           "RS",           "DT",
        "UC",           "PD",           "AT",           "in",
        "IP",           "HP",           "SM",           "SB",
        "BI",           "IB",           "BR",           "RB",
        "R",            "B",            "I",            "IR",
        "RI",           "na",           "sp",           "nf",
        "fi",           "RE",           "RS",           "DT",
        "UC",           "PD",           "AT",           "in",

-       "ft"
+       "ft",           "OP",           "EX",           "EE",
+       "UR",           "UE",           "ll"

        };
 
 const  char * const *man_macronames = __man_macronames;
 
        };
 
 const  char * const *man_macronames = __man_macronames;
 

-static struct man_node *man_node_alloc(struct man *, int, int, 
+static struct man_node *man_node_alloc(struct man *, int, int,

                                enum man_type, enum mant);
                                enum man_type, enum mant);

-static int              man_node_append(struct man *, 
+static int              man_node_append(struct man *,

                                struct man_node *);
                                struct man_node *);

-static int              man_span_alloc(struct man *, 
-                               const struct tbl_span *);

 static void             man_node_free(struct man_node *);
 static void             man_node_free(struct man_node *);

-static void             man_node_unlink(struct man *, 
+static void             man_node_unlink(struct man *,

                                struct man_node *);
 static int              man_ptext(struct man *, int, char *, int);
 static int              man_pmacro(struct man *, int, char *, int);
                                struct man_node *);
 static int              man_ptext(struct man *, int, char *, int);
 static int              man_pmacro(struct man *, int, char *, int);


@@ -61,23 +65,21 @@ static      int              man_descope(struct man *, int, int);
 
 
 const struct man_node *
 
 
 const struct man_node *

-man_node(const struct man *m)
+man_node(const struct man *man)

 {
 
 {
 

-       assert( ! (MAN_HALT & m->flags));
-       return(m->first);
+       assert( ! (MAN_HALT & man->flags));
+       return(man->first);

 }
 
 }
 

-

 const struct man_meta *
 const struct man_meta *

-man_meta(const struct man *m)
+man_meta(const struct man *man)

 {
 
 {
 

-       assert( ! (MAN_HALT & m->flags));
-       return(&m->meta);
+       assert( ! (MAN_HALT & man->flags));
+       return(&man->meta);

 }
 
 }
 

-

 void
 man_reset(struct man *man)
 {
 void
 man_reset(struct man *man)
 {


@@ -86,7 +88,6 @@ man_reset(struct man *man)
        man_alloc1(man);
 }
 
        man_alloc1(man);
 }
 

-

 void
 man_free(struct man *man)
 {
 void
 man_free(struct man *man)
 {


@@ -95,48 +96,45 @@ man_free(struct man *man)
        free(man);
 }
 
        free(man);
 }
 

-

 struct man *
 struct man *

-man_alloc(struct regset *regs, void *data, mandocmsg msg)
+man_alloc(struct roff *roff, struct mparse *parse, int quick)

 {
        struct man      *p;
 
        p = mandoc_calloc(1, sizeof(struct man));
 
        man_hash_init();
 {
        struct man      *p;
 
        p = mandoc_calloc(1, sizeof(struct man));
 
        man_hash_init();

-       p->data = data;
-       p->msg = msg;
-       p->regs = regs;
+       p->parse = parse;
+       p->quick = quick;
+       p->roff = roff;

 
        man_alloc1(p);
        return(p);
 }
 
 
        man_alloc1(p);
        return(p);
 }
 

-

 int
 int

-man_endparse(struct man *m)
+man_endparse(struct man *man)

 {
 
 {
 

-       assert( ! (MAN_HALT & m->flags));
-       if (man_macroend(m))
+       assert( ! (MAN_HALT & man->flags));
+       if (man_macroend(man))

                return(1);
                return(1);

-       m->flags |= MAN_HALT;
+       man->flags |= MAN_HALT;

        return(0);
 }
 
        return(0);
 }
 

-

 int
 int

-man_parseln(struct man *m, int ln, char *buf, int offs)
+man_parseln(struct man *man, int ln, char *buf, int offs)

 {
 
 {
 

-       m->flags |= MAN_NEWLINE;
+       man->flags |= MAN_NEWLINE;

 
 

-       assert( ! (MAN_HALT & m->flags));
-       return(('.' == buf[offs] || '\'' == buf[offs]) ? 
-                       man_pmacro(m, ln, buf, offs) : 
-                       man_ptext(m, ln, buf, offs));
-}
+       assert( ! (MAN_HALT & man->flags));

 
 

+       return (roff_getcontrol(man->roff, buf, &offs) ?
+           man_pmacro(man, ln, buf, offs) :
+           man_ptext(man, ln, buf, offs));
+}

 
 static void
 man_free1(struct man *man)
 
 static void
 man_free1(struct man *man)


@@ -148,26 +146,25 @@ man_free1(struct man *man)
                free(man->meta.title);
        if (man->meta.source)
                free(man->meta.source);
                free(man->meta.title);
        if (man->meta.source)
                free(man->meta.source);

-       if (man->meta.rawdate)
-               free(man->meta.rawdate);
+       if (man->meta.date)
+               free(man->meta.date);

        if (man->meta.vol)
                free(man->meta.vol);
        if (man->meta.msec)
                free(man->meta.msec);
 }
 
        if (man->meta.vol)
                free(man->meta.vol);
        if (man->meta.msec)
                free(man->meta.msec);
 }
 

-

 static void
 static void

-man_alloc1(struct man *m)
+man_alloc1(struct man *man)

 {
 
 {
 

-       memset(&m->meta, 0, sizeof(struct man_meta));
-       m->flags = 0;
-       m->last = mandoc_calloc(1, sizeof(struct man_node));
-       m->first = m->last;
-       m->last->type = MAN_ROOT;
-       m->last->tok = MAN_MAX;
-       m->next = MAN_NEXT_CHILD;
+       memset(&man->meta, 0, sizeof(struct man_meta));
+       man->flags = 0;
+       man->last = mandoc_calloc(1, sizeof(struct man_node));
+       man->first = man->last;
+       man->last->type = MAN_ROOT;
+       man->last->tok = MAN_MAX;
+       man->next = MAN_NEXT_CHILD;

 }
 
 
 }
 
 


@@ -180,12 +177,12 @@ man_node_append(struct man *man, struct man_node *p)
        assert(MAN_ROOT != p->type);
 
        switch (man->next) {
        assert(MAN_ROOT != p->type);
 
        switch (man->next) {

-       case (MAN_NEXT_SIBLING):
+       case MAN_NEXT_SIBLING:

                man->last->next = p;
                p->prev = man->last;
                p->parent = man->last->parent;
                break;
                man->last->next = p;
                p->prev = man->last;
                p->parent = man->last->parent;
                break;

-       case (MAN_NEXT_CHILD):
+       case MAN_NEXT_CHILD:

                man->last->child = p;
                p->parent = man->last;
                break;
                man->last->child = p;
                p->parent = man->last;
                break;


@@ -193,7 +190,7 @@ man_node_append(struct man *man, struct man_node *p)
                abort();
                /* NOTREACHED */
        }
                abort();
                /* NOTREACHED */
        }

-       
+

        assert(p->parent);
        p->parent->nchild++;
 
        assert(p->parent);
        p->parent->nchild++;
 


@@ -201,11 +198,15 @@ man_node_append(struct man *man, struct man_node *p)
                return(0);
 
        switch (p->type) {
                return(0);
 
        switch (p->type) {

-       case (MAN_HEAD):
+       case MAN_HEAD:

                assert(MAN_BLOCK == p->parent->type);
                p->parent->head = p;
                break;
                assert(MAN_BLOCK == p->parent->type);
                p->parent->head = p;
                break;

-       case (MAN_BODY):
+       case MAN_TAIL:
+               assert(MAN_BLOCK == p->parent->type);
+               p->parent->tail = p;
+               break;
+       case MAN_BODY:

                assert(MAN_BLOCK == p->parent->type);
                p->parent->body = p;
                break;
                assert(MAN_BLOCK == p->parent->type);
                p->parent->body = p;
                break;


@@ -216,9 +217,9 @@ man_node_append(struct man *man, struct man_node *p)
        man->last = p;
 
        switch (p->type) {
        man->last = p;
 
        switch (p->type) {

-       case (MAN_TBL):
+       case MAN_TBL:

                /* FALLTHROUGH */
                /* FALLTHROUGH */

-       case (MAN_TEXT):
+       case MAN_TEXT:

                if ( ! man_valid_post(man))
                        return(0);
                break;
                if ( ! man_valid_post(man))
                        return(0);
                break;


@@ -229,9 +230,8 @@ man_node_append(struct man *man, struct man_node *p)
        return(1);
 }
 
        return(1);
 }
 

-

 static struct man_node *
 static struct man_node *

-man_node_alloc(struct man *m, int line, int pos, 
+man_node_alloc(struct man *man, int line, int pos,

                enum man_type type, enum mant tok)
 {
        struct man_node *p;
                enum man_type type, enum mant tok)
 {
        struct man_node *p;


@@ -242,102 +242,87 @@ man_node_alloc(struct man *m, int line, int pos,
        p->type = type;
        p->tok = tok;
 
        p->type = type;
        p->tok = tok;
 

-       if (MAN_NEWLINE & m->flags)
+       if (MAN_NEWLINE & man->flags)

                p->flags |= MAN_LINE;
                p->flags |= MAN_LINE;

-       m->flags &= ~MAN_NEWLINE;
+       man->flags &= ~MAN_NEWLINE;

        return(p);
 }
 
        return(p);
 }
 

-

 int
 int

-man_elem_alloc(struct man *m, int line, int pos, enum mant tok)
+man_elem_alloc(struct man *man, int line, int pos, enum mant tok)

 {
        struct man_node *p;
 
 {
        struct man_node *p;
 

-       p = man_node_alloc(m, line, pos, MAN_ELEM, tok);
-       if ( ! man_node_append(m, p))
+       p = man_node_alloc(man, line, pos, MAN_ELEM, tok);
+       if ( ! man_node_append(man, p))

                return(0);
                return(0);

-       m->next = MAN_NEXT_CHILD;
+       man->next = MAN_NEXT_CHILD;

        return(1);
 }
 
        return(1);
 }
 

-

 int
 int

-man_head_alloc(struct man *m, int line, int pos, enum mant tok)
+man_tail_alloc(struct man *man, int line, int pos, enum mant tok)

 {
        struct man_node *p;
 
 {
        struct man_node *p;
 

-       p = man_node_alloc(m, line, pos, MAN_HEAD, tok);
-       if ( ! man_node_append(m, p))
+       p = man_node_alloc(man, line, pos, MAN_TAIL, tok);
+       if ( ! man_node_append(man, p))

                return(0);
                return(0);

-       m->next = MAN_NEXT_CHILD;
+       man->next = MAN_NEXT_CHILD;

        return(1);
 }
 
        return(1);
 }
 

-

 int
 int

-man_body_alloc(struct man *m, int line, int pos, enum mant tok)
+man_head_alloc(struct man *man, int line, int pos, enum mant tok)

 {
        struct man_node *p;
 
 {
        struct man_node *p;
 

-       p = man_node_alloc(m, line, pos, MAN_BODY, tok);
-       if ( ! man_node_append(m, p))
+       p = man_node_alloc(man, line, pos, MAN_HEAD, tok);
+       if ( ! man_node_append(man, p))

                return(0);
                return(0);

-       m->next = MAN_NEXT_CHILD;
+       man->next = MAN_NEXT_CHILD;

        return(1);
 }
 
        return(1);
 }
 

-

 int
 int

-man_block_alloc(struct man *m, int line, int pos, enum mant tok)
+man_body_alloc(struct man *man, int line, int pos, enum mant tok)

 {
        struct man_node *p;
 
 {
        struct man_node *p;
 

-       p = man_node_alloc(m, line, pos, MAN_BLOCK, tok);
-       if ( ! man_node_append(m, p))
+       p = man_node_alloc(man, line, pos, MAN_BODY, tok);
+       if ( ! man_node_append(man, p))

                return(0);
                return(0);

-       m->next = MAN_NEXT_CHILD;
+       man->next = MAN_NEXT_CHILD;

        return(1);
 }
 
        return(1);
 }
 

-static int
-man_span_alloc(struct man *m, const struct tbl_span *span)
+int
+man_block_alloc(struct man *man, int line, int pos, enum mant tok)

 {
 {

-       struct man_node *n;
-
-       n = man_node_alloc(m, span->line, 0, MAN_TBL, MAN_MAX);
-       n->span = span;
+       struct man_node *p;

 
 

-       if ( ! man_node_append(m, n))
+       p = man_node_alloc(man, line, pos, MAN_BLOCK, tok);
+       if ( ! man_node_append(man, p))

                return(0);
                return(0);

-
-       m->next = MAN_NEXT_SIBLING;
+       man->next = MAN_NEXT_CHILD;

        return(1);
 }
 
 int
        return(1);
 }
 
 int

-man_word_alloc(struct man *m, int line, int pos, const char *word)
+man_word_alloc(struct man *man, int line, int pos, const char *word)

 {
        struct man_node *n;
 {
        struct man_node *n;

-       size_t           sv, len;
-
-       len = strlen(word);

 
 

-       n = man_node_alloc(m, line, pos, MAN_TEXT, MAN_MAX);
-       n->string = mandoc_malloc(len + 1);
-       sv = strlcpy(n->string, word, len + 1);
+       n = man_node_alloc(man, line, pos, MAN_TEXT, MAN_MAX);
+       n->string = roff_strdup(man->roff, word);

 
 

-       /* Prohibit truncation. */
-       assert(sv < len + 1);
-
-       if ( ! man_node_append(m, n))
+       if ( ! man_node_append(man, n))

                return(0);
 
                return(0);
 

-       m->next = MAN_NEXT_SIBLING;
+       man->next = MAN_NEXT_SIBLING;

        return(1);
 }
 
        return(1);
 }
 

-

 /*
  * Free all of the resources held by a node.  This does NOT unlink a
  * node from its context; for that, see man_node_unlink().
 /*
  * Free all of the resources held by a node.  This does NOT unlink a
  * node from its context; for that, see man_node_unlink().


@@ -351,31 +336,53 @@ man_node_free(struct man_node *p)
        free(p);
 }
 
        free(p);
 }
 

-

 void
 void

-man_node_delete(struct man *m, struct man_node *p)
+man_node_delete(struct man *man, struct man_node *p)

 {
 
        while (p->child)
 {
 
        while (p->child)

-               man_node_delete(m, p->child);
+               man_node_delete(man, p->child);

 
 

-       man_node_unlink(m, p);
+       man_node_unlink(man, p);

        man_node_free(p);
 }
 
        man_node_free(p);
 }
 

+int
+man_addeqn(struct man *man, const struct eqn *ep)
+{
+       struct man_node *n;
+
+       assert( ! (MAN_HALT & man->flags));
+
+       n = man_node_alloc(man, ep->ln, ep->pos, MAN_EQN, MAN_MAX);
+       n->eqn = ep;
+
+       if ( ! man_node_append(man, n))
+               return(0);
+
+       man->next = MAN_NEXT_SIBLING;
+       return(man_descope(man, ep->ln, ep->pos));
+}

 
 int
 
 int

-man_addspan(struct man *m, const struct tbl_span *sp)
+man_addspan(struct man *man, const struct tbl_span *sp)

 {
 {

+       struct man_node *n;
+
+       assert( ! (MAN_HALT & man->flags));

 
 

-       assert( ! (MAN_HALT & m->flags));
-       if ( ! man_span_alloc(m, sp))
+       n = man_node_alloc(man, sp->line, 0, MAN_TBL, MAN_MAX);
+       n->span = sp;
+
+       if ( ! man_node_append(man, n))

                return(0);
                return(0);

-       return(man_descope(m, 0, 0));
+
+       man->next = MAN_NEXT_SIBLING;
+       return(man_descope(man, sp->line, 0));

 }
 
 static int
 }
 
 static int

-man_descope(struct man *m, int line, int offs)
+man_descope(struct man *man, int line, int offs)

 {
        /*
         * Co-ordinate what happens with having a next-line scope open:
 {
        /*
         * Co-ordinate what happens with having a next-line scope open:


@@ -383,59 +390,56 @@ man_descope(struct man *m, int line, int offs)
         * out the block scope (also if applicable).
         */
 
         * out the block scope (also if applicable).
         */
 

-       if (MAN_ELINE & m->flags) {
-               m->flags &= ~MAN_ELINE;
-               if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX))
+       if (MAN_ELINE & man->flags) {
+               man->flags &= ~MAN_ELINE;
+               if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))

                        return(0);
        }
 
                        return(0);
        }
 

-       if ( ! (MAN_BLINE & m->flags))
+       if ( ! (MAN_BLINE & man->flags))

                return(1);
                return(1);

-       m->flags &= ~MAN_BLINE;
+       man->flags &= ~MAN_BLINE;

 
 

-       if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX))
+       if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))

                return(0);
                return(0);

-       return(man_body_alloc(m, line, offs, m->last->tok));
+       return(man_body_alloc(man, line, offs, man->last->tok));

 }
 
 }
 

-

 static int
 static int

-man_ptext(struct man *m, int line, char *buf, int offs)
+man_ptext(struct man *man, int line, char *buf, int offs)

 {
        int              i;
 
 {
        int              i;
 

-       /* Ignore bogus comments. */
-
-       if ('\\' == buf[offs] && 
-                       '.' == buf[offs + 1] && 
-                       '"' == buf[offs + 2]) {
-               man_pmsg(m, line, offs, MANDOCERR_BADCOMMENT);
-               return(1);
-       }
-

        /* Literal free-form text whitespace is preserved. */
 
        /* Literal free-form text whitespace is preserved. */
 

-       if (MAN_LITERAL & m->flags) {
-               if ( ! man_word_alloc(m, line, offs, buf + offs))
+       if (MAN_LITERAL & man->flags) {
+               if ( ! man_word_alloc(man, line, offs, buf + offs))

                        return(0);
                        return(0);

-               return(man_descope(m, line, offs));
+               return(man_descope(man, line, offs));

        }
 
        }
 

-       /* Pump blank lines directly into the backend. */
-

        for (i = offs; ' ' == buf[i]; i++)
                /* Skip leading whitespace. */ ;
 
        for (i = offs; ' ' == buf[i]; i++)
                /* Skip leading whitespace. */ ;
 

+       /*
+        * Blank lines are ignored right after headings
+        * but add a single vertical space elsewhere.
+        */
+

        if ('\0' == buf[i]) {
                /* Allocate a blank entry. */
        if ('\0' == buf[i]) {
                /* Allocate a blank entry. */

-               if ( ! man_word_alloc(m, line, offs, ""))
-                       return(0);
-               return(man_descope(m, line, offs));
+               if (MAN_SH != man->last->tok &&
+                   MAN_SS != man->last->tok) {
+                       if ( ! man_elem_alloc(man, line, offs, MAN_sp))
+                               return(0);
+                       man->next = MAN_NEXT_SIBLING;
+               }
+               return(1);

        }
 
        }
 

-       /* 
+       /*

         * Warn if the last un-escaped character is whitespace. Then
         * Warn if the last un-escaped character is whitespace. Then

-        * strip away the remaining spaces (tabs stay!).   
+        * strip away the remaining spaces (tabs stay!).

         */
 
        i = (int)strlen(buf);
         */
 
        i = (int)strlen(buf);


@@ -443,7 +447,7 @@ man_ptext(struct man *m, int line, char *buf, int offs)
 
        if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
                if (i > 1 && '\\' != buf[i - 2])
 
        if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
                if (i > 1 && '\\' != buf[i - 2])

-                       man_pmsg(m, line, i - 1, MANDOCERR_EOLNSPACE);
+                       man_pmsg(man, line, i - 1, MANDOCERR_EOLNSPACE);

 
                for (--i; i && ' ' == buf[i]; i--)
                        /* Spin back to non-space. */ ;
 
                for (--i; i && ' ' == buf[i]; i--)
                        /* Spin back to non-space. */ ;


@@ -454,7 +458,7 @@ man_ptext(struct man *m, int line, char *buf, int offs)
                buf[i] = '\0';
        }
 
                buf[i] = '\0';
        }
 

-       if ( ! man_word_alloc(m, line, offs, buf + offs))
+       if ( ! man_word_alloc(man, line, offs, buf + offs))

                return(0);
 
        /*
                return(0);
 
        /*


@@ -464,83 +468,70 @@ man_ptext(struct man *m, int line, char *buf, int offs)
         */
 
        assert(i);
         */
 
        assert(i);

-       if (mandoc_eos(buf, (size_t)i, 0))
-               m->last->flags |= MAN_EOS;
+       if (mandoc_eos(buf, (size_t)i))
+               man->last->flags |= MAN_EOS;

 
 

-       return(man_descope(m, line, offs));
+       return(man_descope(man, line, offs));

 }
 
 }
 

-

 static int
 static int

-man_pmacro(struct man *m, int ln, char *buf, int offs)
+man_pmacro(struct man *man, int ln, char *buf, int offs)

 {
 {

-       int              i, j, ppos;
+       int              i, ppos;

        enum mant        tok;
        char             mac[5];
        struct man_node *n;
 
        enum mant        tok;
        char             mac[5];
        struct man_node *n;
 

-       /* Comments and empties are quickly ignored. */
-
-       offs++;
-
-       if ('\0' == buf[offs])
+       if ('"' == buf[offs]) {
+               man_pmsg(man, ln, offs, MANDOCERR_BADCOMMENT);
+               return(1);
+       } else if ('\0' == buf[offs])

                return(1);
 
                return(1);
 

-       i = offs;
-
-       /*
-        * Skip whitespace between the control character and initial
-        * text.  "Whitespace" is both spaces and tabs.
-        */
-
-       if (' ' == buf[i] || '\t' == buf[i]) {
-               i++;
-               while (buf[i] && (' ' == buf[i] || '\t' == buf[i]))
-                       i++;
-               if ('\0' == buf[i])
-                       goto out;
-       }
-
-       ppos = i;
+       ppos = offs;

 
        /*
         * Copy the first word into a nil-terminated buffer.
         * Stop copying when a tab, space, or eoln is encountered.
         */
 
 
        /*
         * Copy the first word into a nil-terminated buffer.
         * Stop copying when a tab, space, or eoln is encountered.
         */
 

-       j = 0;
-       while (j < 4 && '\0' != buf[i] && ' ' != buf[i] && '\t' != buf[i])
-               mac[j++] = buf[i++];
-       mac[j] = '\0';
+       i = 0;
+       while (i < 4 && '\0' != buf[offs] && ' ' != buf[offs] &&
+           '\t' != buf[offs])
+               mac[i++] = buf[offs++];
+
+       mac[i] = '\0';
+
+       tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX;

 
 

-       tok = (j > 0 && j < 4) ? man_hash_find(mac) : MAN_MAX;

        if (MAN_MAX == tok) {
        if (MAN_MAX == tok) {

-               man_vmsg(m, MANDOCERR_MACRO, ln, ppos, "%s", buf + ppos - 1);
+               mandoc_vmsg(MANDOCERR_MACRO, man->parse, ln, ppos,
+                   "%s", buf + ppos - 1);

                return(1);
        }
 
        /* The macro is sane.  Jump to the next word. */
 
                return(1);
        }
 
        /* The macro is sane.  Jump to the next word. */
 

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

 
 

-       /* 
+       /*

         * Trailing whitespace.  Note that tabs are allowed to be passed
         * into the parser as "text", so we only warn about spaces here.
         */
 
         * Trailing whitespace.  Note that tabs are allowed to be passed
         * into the parser as "text", so we only warn about spaces here.
         */
 

-       if ('\0' == buf[i] && ' ' == buf[i - 1])
-               man_pmsg(m, ln, i - 1, MANDOCERR_EOLNSPACE);
+       if ('\0' == buf[offs] && ' ' == buf[offs - 1])
+               man_pmsg(man, ln, offs - 1, MANDOCERR_EOLNSPACE);

 
 

-       /* 
+       /*

         * Remove prior ELINE macro, as it's being clobbered by a new
         * macro.  Note that NSCOPED macros do not close out ELINE
         * macros---they don't print text---so we let those slip by.
         */
 
        if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&
         * Remove prior ELINE macro, as it's being clobbered by a new
         * macro.  Note that NSCOPED macros do not close out ELINE
         * macros---they don't print text---so we let those slip by.
         */
 
        if ( ! (MAN_NSCOPED & man_macros[tok].flags) &&

-                       m->flags & MAN_ELINE) {
-               n = m->last;
+                       man->flags & MAN_ELINE) {
+               n = man->last;

                assert(MAN_TEXT != n->type);
 
                /* Remove repeated NSCOPED macros causing ELINE. */
                assert(MAN_TEXT != n->type);
 
                /* Remove repeated NSCOPED macros causing ELINE. */


@@ -548,11 +539,43 @@ man_pmacro(struct man *m, int ln, char *buf, int offs)
                if (MAN_NSCOPED & man_macros[n->tok].flags)
                        n = n->parent;
 
                if (MAN_NSCOPED & man_macros[n->tok].flags)
                        n = n->parent;
 

-               man_vmsg(m, MANDOCERR_LINESCOPE, n->line, n->pos,
-                               "%s", man_macronames[n->tok]);
+               mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
+                   n->pos, "%s breaks %s", man_macronames[tok],
+                   man_macronames[n->tok]);

 
 

-               man_node_delete(m, n);
-               m->flags &= ~MAN_ELINE;
+               man_node_delete(man, n);
+               man->flags &= ~MAN_ELINE;
+       }
+
+       /*
+        * Remove prior BLINE macro that is being clobbered.
+        */
+       if ((man->flags & MAN_BLINE) &&
+           (MAN_BSCOPE & man_macros[tok].flags)) {
+               n = man->last;
+
+               /* Might be a text node like 8 in
+                * .TP 8
+                * .SH foo
+                */
+               if (MAN_TEXT == n->type)
+                       n = n->parent;
+
+               /* Remove element that didn't end BLINE, if any. */
+               if ( ! (MAN_BSCOPE & man_macros[n->tok].flags))
+                       n = n->parent;
+
+               assert(MAN_HEAD == n->type);
+               n = n->parent;
+               assert(MAN_BLOCK == n->type);
+               assert(MAN_SCOPED & man_macros[n->tok].flags);
+
+               mandoc_vmsg(MANDOCERR_LINESCOPE, man->parse, n->line,
+                   n->pos, "%s breaks %s", man_macronames[tok],
+                   man_macronames[n->tok]);
+
+               man_node_delete(man, n);
+               man->flags &= ~MAN_BLINE;

        }
 
        /*
        }
 
        /*


@@ -561,81 +584,74 @@ man_pmacro(struct man *m, int ln, char *buf, int offs)
         * when they exit.
         */
 
         * when they exit.
         */
 

-       if (MAN_BLINE & m->flags)
-               m->flags |= MAN_BPLINE;
+       if (MAN_BLINE & man->flags)
+               man->flags |= MAN_BPLINE;

 
        /* Call to handler... */
 
        assert(man_macros[tok].fp);
 
        /* Call to handler... */
 
        assert(man_macros[tok].fp);

-       if ( ! (*man_macros[tok].fp)(m, tok, ln, ppos, &i, buf))
+       if ( ! (*man_macros[tok].fp)(man, tok, ln, ppos, &offs, buf))

                goto err;
 
                goto err;
 

-out:
-       /* 
+       /* In quick mode (for mandocdb), abort after the NAME section. */
+
+       if (man->quick && MAN_SH == tok) {
+               n = man->last;
+               if (MAN_BODY == n->type &&
+                   strcmp(n->prev->child->string, "NAME"))
+                       return(2);
+       }
+
+       /*

         * We weren't in a block-line scope when entering the
         * above-parsed macro, so return.
         */
 
         * We weren't in a block-line scope when entering the
         * above-parsed macro, so return.
         */
 

-       if ( ! (MAN_BPLINE & m->flags)) {
-               m->flags &= ~MAN_ILINE; 
+       if ( ! (MAN_BPLINE & man->flags)) {
+               man->flags &= ~MAN_ILINE;

                return(1);
        }
                return(1);
        }

-       m->flags &= ~MAN_BPLINE;
+       man->flags &= ~MAN_BPLINE;

 
        /*
         * If we're in a block scope, then allow this macro to slip by
         * without closing scope around it.
         */
 
 
        /*
         * If we're in a block scope, then allow this macro to slip by
         * without closing scope around it.
         */
 

-       if (MAN_ILINE & m->flags) {
-               m->flags &= ~MAN_ILINE;
+       if (MAN_ILINE & man->flags) {
+               man->flags &= ~MAN_ILINE;

                return(1);
        }
 
                return(1);
        }
 

-       /* 
+       /*

         * If we've opened a new next-line element scope, then return
         * now, as the next line will close out the block scope.
         */
 
         * If we've opened a new next-line element scope, then return
         * now, as the next line will close out the block scope.
         */
 

-       if (MAN_ELINE & m->flags)
+       if (MAN_ELINE & man->flags)

                return(1);
 
        /* Close out the block scope opened in the prior line.  */
 
                return(1);
 
        /* Close out the block scope opened in the prior line.  */
 

-       assert(MAN_BLINE & m->flags);
-       m->flags &= ~MAN_BLINE;
+       assert(MAN_BLINE & man->flags);
+       man->flags &= ~MAN_BLINE;

 
 

-       if ( ! man_unscope(m, m->last->parent, MANDOCERR_MAX))
+       if ( ! man_unscope(man, man->last->parent, MANDOCERR_MAX))

                return(0);
                return(0);

-       return(man_body_alloc(m, ln, offs, m->last->tok));
+       return(man_body_alloc(man, ln, ppos, man->last->tok));

 
 err:   /* Error out. */
 
 
 err:   /* Error out. */
 

-       m->flags |= MAN_HALT;
+       man->flags |= MAN_HALT;

        return(0);
 }
 
        return(0);
 }
 

-
-int
-man_vmsg(struct man *man, enum mandocerr t, 
-               int ln, int pos, const char *fmt, ...)
-{
-       char             buf[256];
-       va_list          ap;
-
-       va_start(ap, fmt);
-       vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
-       va_end(ap);
-       return((*man->msg)(t, man->data, ln, pos, buf));
-}
-
-

 /*
 /*

- * Unlink a node from its context.  If "m" is provided, the last parse
+ * Unlink a node from its context.  If "man" is provided, the last parse

  * point will also be adjusted accordingly.
  */
 static void
  * point will also be adjusted accordingly.
  */
 static void

-man_node_unlink(struct man *m, struct man_node *n)
+man_node_unlink(struct man *man, struct man_node *n)

 {
 
        /* Adjust siblings. */
 {
 
        /* Adjust siblings. */


@@ -655,18 +671,72 @@ man_node_unlink(struct man *m, struct man_node *n)
 
        /* Adjust parse point, if applicable. */
 
 
        /* Adjust parse point, if applicable. */
 

-       if (m && m->last == n) {
+       if (man && man->last == n) {

                /*XXX: this can occur when bailing from validation. */
                /*assert(NULL == n->next);*/
                if (n->prev) {
                /*XXX: this can occur when bailing from validation. */
                /*assert(NULL == n->next);*/
                if (n->prev) {

-                       m->last = n->prev;
-                       m->next = MAN_NEXT_SIBLING;
+                       man->last = n->prev;
+                       man->next = MAN_NEXT_SIBLING;

                } else {
                } else {

-                       m->last = n->parent;
-                       m->next = MAN_NEXT_CHILD;
+                       man->last = n->parent;
+                       man->next = MAN_NEXT_CHILD;

                }
        }
 
                }
        }
 

-       if (m && m->first == n)
-               m->first = NULL;
+       if (man && man->first == n)
+               man->first = NULL;
+}
+
+const struct mparse *
+man_mparse(const struct man *man)
+{
+
+       assert(man && man->parse);
+       return(man->parse);
+}
+
+void
+man_deroff(char **dest, const struct man_node *n)
+{
+       char    *cp;
+       size_t   sz;
+
+       if (MAN_TEXT != n->type) {
+               for (n = n->child; n; n = n->next)
+                       man_deroff(dest, n);
+               return;
+       }
+
+       /* Skip leading whitespace and escape sequences. */
+
+       cp = n->string;
+       while ('\0' != *cp) {
+               if ('\\' == *cp) {
+                       cp++;
+                       mandoc_escape((const char **)&cp, NULL, NULL);
+               } else if (isspace((unsigned char)*cp))
+                       cp++;
+               else
+                       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;
+       }
+
+       mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
+       free(*dest);
+       *dest = cp;

 }
 }