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Fix incorrectly swapped labels of left/right arrows; from bentley@.
[mandoc.git] / read.c
diff --git a/read.c b/read.c
index 5ad294f979a866621183489ed9468774c971fdf1..bed97580f66f0e31959d62a25de603b016d93a00 100644 (file)
--- a/read.c
+++ b/read.c
@@ -1,76 +1,71 @@
-/*     $Id: read.c,v 1.62 2014/07/05 01:12:20 schwarze Exp $ */
+/*     $Id: read.c,v 1.191 2017/07/08 17:52:50 schwarze Exp $ */
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
 /*
  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
- * Copyright (c) 2010-2014 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2010-2017 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2010, 2012 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
  * copyright notice and this permission notice appear in all copies.
  *
  * Copyright (c) 2010, 2012 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
  * 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.
  */
-#ifdef HAVE_CONFIG_H
 #include "config.h"
 #include "config.h"
-#endif
 
 
-#ifdef HAVE_MMAP
-# include <sys/stat.h>
-# include <sys/mman.h>
-#endif
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
 
 #include <assert.h>
 #include <ctype.h>
 
 #include <assert.h>
 #include <ctype.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
 #include <errno.h>
 #include <fcntl.h>
 #include <stdarg.h>
 #include <errno.h>
 #include <fcntl.h>
 #include <stdarg.h>
-#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
+#include <zlib.h>
 
 
-#include "mandoc.h"
 #include "mandoc_aux.h"
 #include "mandoc_aux.h"
-#include "libmandoc.h"
+#include "mandoc.h"
+#include "roff.h"
 #include "mdoc.h"
 #include "man.h"
 #include "mdoc.h"
 #include "man.h"
-#include "main.h"
+#include "libmandoc.h"
 
 #define        REPARSE_LIMIT   1000
 
 
 #define        REPARSE_LIMIT   1000
 
-struct buf {
-       char             *buf; /* binary input buffer */
-       size_t            sz; /* size of binary buffer */
-};
-
 struct mparse {
 struct mparse {
-       enum mandoclevel  file_status; /* status of current parse */
-       enum mandoclevel  wlevel; /* ignore messages below this */
-       int               line; /* line number in the file */
-       int               options; /* parser options */
-       struct man       *pman; /* persistent man parser */
-       struct mdoc      *pmdoc; /* persistent mdoc parser */
-       struct man       *man; /* man parser */
-       struct mdoc      *mdoc; /* mdoc parser */
        struct roff      *roff; /* roff parser (!NULL) */
        struct roff      *roff; /* roff parser (!NULL) */
+       struct roff_man  *man; /* man parser */
        char             *sodest; /* filename pointed to by .so */
        char             *sodest; /* filename pointed to by .so */
-       int               reparse_count; /* finite interp. stack */
+       const char       *file; /* filename of current input file */
+       struct buf       *primary; /* buffer currently being parsed */
+       struct buf       *secondary; /* preprocessed copy of input */
+       const char       *os_s; /* default operating system */
        mandocmsg         mmsg; /* warning/error message handler */
        mandocmsg         mmsg; /* warning/error message handler */
-       const char       *file;
-       struct buf       *secondary;
-       char             *defos; /* default operating system */
+       enum mandoclevel  file_status; /* status of current parse */
+       enum mandocerr    mmin; /* ignore messages below this */
+       int               options; /* parser options */
+       int               gzip; /* current input file is gzipped */
+       int               filenc; /* encoding of the current file */
+       int               reparse_count; /* finite interp. stack */
+       int               line; /* line number in the file */
 };
 
 };
 
+static void      choose_parser(struct mparse *);
 static void      resize_buf(struct buf *, size_t);
 static void      resize_buf(struct buf *, size_t);
-static void      mparse_buf_r(struct mparse *, struct buf, int);
-static void      pset(const char *, int, struct mparse *);
+static int       mparse_buf_r(struct mparse *, struct buf, size_t, int);
 static int       read_whole_file(struct mparse *, const char *, int,
                                struct buf *, int *);
 static void      mparse_end(struct mparse *);
 static int       read_whole_file(struct mparse *, const char *, int,
                                struct buf *, int *);
 static void      mparse_end(struct mparse *);
@@ -79,10 +74,10 @@ static      void      mparse_parse_buffer(struct mparse *, struct buf,
 
 static const enum mandocerr    mandoclimits[MANDOCLEVEL_MAX] = {
        MANDOCERR_OK,
 
 static const enum mandocerr    mandoclimits[MANDOCLEVEL_MAX] = {
        MANDOCERR_OK,
-       MANDOCERR_WARNING,
+       MANDOCERR_OK,
        MANDOCERR_WARNING,
        MANDOCERR_ERROR,
        MANDOCERR_WARNING,
        MANDOCERR_ERROR,
-       MANDOCERR_FATAL,
+       MANDOCERR_UNSUPP,
        MANDOCERR_MAX,
        MANDOCERR_MAX
 };
        MANDOCERR_MAX,
        MANDOCERR_MAX
 };
@@ -90,140 +85,194 @@ static    const enum mandocerr    mandoclimits[MANDOCLEVEL_MAX] = {
 static const char * const      mandocerrs[MANDOCERR_MAX] = {
        "ok",
 
 static const char * const      mandocerrs[MANDOCERR_MAX] = {
        "ok",
 
+       "base system convention",
+
+       "Mdocdate found",
+       "Mdocdate missing",
+       "unknown architecture",
+       "operating system explicitly specified",
+       "RCS id missing",
+       "referenced manual not found",
+
+       "generic style suggestion",
+
+       "legacy man(7) date format",
+       "lower case character in document title",
+       "duplicate RCS id",
+       "typo in section name",
+       "unterminated quoted argument",
+       "useless macro",
+       "consider using OS macro",
+       "errnos out of order",
+       "duplicate errno",
+       "trailing delimiter",
+       "no blank before trailing delimiter",
+       "fill mode already enabled, skipping",
+       "fill mode already disabled, skipping",
+       "function name without markup",
+       "whitespace at end of input line",
+       "bad comment style",
+
        "generic warning",
 
        /* related to the prologue */
        "generic warning",
 
        /* related to the prologue */
-       "missing .TH macro, using \"unknown 1\"",
-       "lower case character in document title",
+       "missing manual title, using UNTITLED",
+       "missing manual title, using \"\"",
+       "missing manual section, using \"\"",
        "unknown manual section",
        "unknown manual section",
-       "unknown manual volume or arch",
        "missing date, using today's date",
        "cannot parse date, using it verbatim",
        "missing date, using today's date",
        "cannot parse date, using it verbatim",
+       "date in the future, using it anyway",
+       "missing Os macro, using \"\"",
+       "late prologue macro",
        "prologue macros out of order",
        "prologue macros out of order",
-       "duplicate prologue macro",
-       "incomplete prologue, terminated by",
-       "skipping prologue macro in body",
 
        /* related to document structure */
        ".so is fragile, better use ln(1)",
        "no document body",
        "content before first section header",
        "first section is not \"NAME\"",
 
        /* related to document structure */
        ".so is fragile, better use ln(1)",
        "no document body",
        "content before first section header",
        "first section is not \"NAME\"",
-       "bad NAME section contents",
+       "NAME section without Nm before Nd",
+       "NAME section without description",
+       "description not at the end of NAME",
+       "bad NAME section content",
+       "missing comma before name",
+       "missing description line, using \"\"",
+       "description line outside NAME section",
        "sections out of conventional order",
        "duplicate section title",
        "unexpected section",
        "sections out of conventional order",
        "duplicate section title",
        "unexpected section",
+       "cross reference to self",
+       "unusual Xr order",
+       "unusual Xr punctuation",
+       "AUTHORS section without An macro",
 
        /* related to macros and nesting */
        "obsolete macro",
 
        /* related to macros and nesting */
        "obsolete macro",
+       "macro neither callable nor escaped",
        "skipping paragraph macro",
        "moving paragraph macro out of list",
        "skipping no-space macro",
        "blocks badly nested",
        "nested displays are not portable",
        "moving content out of list",
        "skipping paragraph macro",
        "moving paragraph macro out of list",
        "skipping no-space macro",
        "blocks badly nested",
        "nested displays are not portable",
        "moving content out of list",
-       ".Vt block has child macro",
-       "fill mode already enabled, skipping .fi",
-       "fill mode already disabled, skipping .nf",
+       "first macro on line",
        "line scope broken",
        "line scope broken",
+       "skipping blank line in line scope",
 
        /* related to missing macro arguments */
        "skipping empty request",
        "conditional request controls empty scope",
        "skipping empty macro",
 
        /* related to missing macro arguments */
        "skipping empty request",
        "conditional request controls empty scope",
        "skipping empty macro",
+       "empty block",
        "empty argument, using 0n",
        "empty argument, using 0n",
-       "argument count wrong",
        "missing display type, using -ragged",
        "list type is not the first argument",
        "missing display type, using -ragged",
        "list type is not the first argument",
-       "missing -width in -tag list, using 8n",
+       "missing -width in -tag list, using 6n",
+       "missing utility name, using \"\"",
+       "missing function name, using \"\"",
        "empty head in list item",
        "empty list item",
        "empty head in list item",
        "empty list item",
+       "missing argument, using next line",
        "missing font type, using \\fR",
        "unknown font type, using \\fR",
        "missing font type, using \\fR",
        "unknown font type, using \\fR",
+       "nothing follows prefix",
+       "empty reference block",
+       "missing section argument",
        "missing -std argument, adding it",
        "missing -std argument, adding it",
+       "missing option string, using \"\"",
+       "missing resource identifier, using \"\"",
+       "missing eqn box, using \"\"",
 
        /* related to bad macro arguments */
 
        /* related to bad macro arguments */
-       "skipping argument",
        "duplicate argument",
        "duplicate argument",
-       "duplicate display type",
-       "duplicate list type",
+       "skipping duplicate argument",
+       "skipping duplicate display type",
+       "skipping duplicate list type",
+       "skipping -width argument",
+       "wrong number of cells",
        "unknown AT&T UNIX version",
        "unknown AT&T UNIX version",
-       "bad Boolean value",
-       "unknown font",
-       "unknown standard specifier",
-       "bad width argument",
+       "comma in function argument",
+       "parenthesis in function name",
+       "unknown library name",
+       "invalid content in Rs block",
+       "invalid Boolean argument",
+       "unknown font, skipping request",
+       "odd number of characters in request",
 
        /* related to plain text */
 
        /* related to plain text */
-       "blank line in non-literal context",
-       "tab in non-literal context",
-       "end of line whitespace",
-       "bad comment style",
-       "bad escape sequence",
-       "unterminated quoted string",
+       "blank line in fill mode, using .sp",
+       "tab in filled text",
+       "new sentence, new line",
+       "invalid escape sequence",
+       "undefined string, using \"\"",
 
 
-       "generic error",
+       /* related to tables */
+       "tbl line starts with span",
+       "tbl column starts with span",
+       "skipping vertical bar in tbl layout",
 
 
-       /* related to equations */
-       "unexpected equation scope closure",
-       "equation scope open on exit",
-       "overlapping equation scopes",
-       "unexpected end of equation",
-       "equation syntax error",
+       "generic error",
 
        /* related to tables */
 
        /* related to tables */
-       "bad table syntax",
-       "bad table option",
-       "bad table layout",
-       "no table layout cells specified",
-       "no table data cells specified",
-       "ignore data in cell",
-       "data block still open",
-       "ignoring extra data cells",
-
+       "non-alphabetic character in tbl options",
+       "skipping unknown tbl option",
+       "missing tbl option argument",
+       "wrong tbl option argument size",
+       "empty tbl layout",
+       "invalid character in tbl layout",
+       "unmatched parenthesis in tbl layout",
+       "tbl without any data cells",
+       "ignoring data in spanned tbl cell",
+       "ignoring extra tbl data cells",
+       "data block open at end of tbl",
+
+       /* related to document structure and macros */
+       NULL,
+       "duplicate prologue macro",
+       "skipping late title macro",
        "input stack limit exceeded, infinite loop?",
        "skipping bad character",
        "input stack limit exceeded, infinite loop?",
        "skipping bad character",
-       "escaped character not allowed in a name",
-       "manual name not yet set",
-       "skipping text before first section header",
        "skipping unknown macro",
        "skipping unknown macro",
-       "NOT IMPLEMENTED, please use groff: skipping request",
-       "argument count wrong",
-       "skipping invalid content in .Rs block",
+       "skipping insecure request",
+       "skipping item outside list",
        "skipping column outside column list",
        "skipping end of block that is not open",
        "skipping column outside column list",
        "skipping end of block that is not open",
-       "missing end of block",
-       "scope open on exit",
-       "uname(3) system call failed",
-       "request requires a numeric argument",
+       "fewer RS blocks open, skipping",
+       "inserting missing end of block",
+       "appending missing end of block",
+
+       /* related to request and macro arguments */
+       "escaped character not allowed in a name",
+       "NOT IMPLEMENTED: Bd -file",
+       "skipping display without arguments",
        "missing list type, using -item",
        "missing list type, using -item",
+       "argument is not numeric, using 1",
+       "missing manual name, using \"\"",
+       "uname(3) system call failed, using UNKNOWN",
+       "unknown standard specifier",
+       "skipping request without numeric argument",
+       "NOT IMPLEMENTED: .so with absolute path or \"..\"",
+       ".so request failed",
        "skipping all arguments",
        "skipping excess arguments",
        "skipping all arguments",
        "skipping excess arguments",
+       "divide by zero",
 
 
-       "generic fatal error",
-
+       "unsupported feature",
        "input too large",
        "input too large",
-       "not a manual",
-       "column syntax is inconsistent",
-       "NOT IMPLEMENTED: .Bd -file",
-       "child violates parent syntax",
-       "argument count wrong, violates syntax",
-       "NOT IMPLEMENTED: .so with absolute path or \"..\"",
-       ".so request failed",
-       "no document prologue",
-       "static buffer exhausted",
-
-       /* system errors */
-       NULL,
-       "cannot stat file",
-       "cannot read file",
+       "unsupported control character",
+       "unsupported roff request",
+       "eqn delim option in tbl",
+       "unsupported tbl layout modifier",
+       "ignoring macro in table",
 };
 
 static const char * const      mandoclevels[MANDOCLEVEL_MAX] = {
        "SUCCESS",
 };
 
 static const char * const      mandoclevels[MANDOCLEVEL_MAX] = {
        "SUCCESS",
-       "RESERVED",
+       "STYLE",
        "WARNING",
        "ERROR",
        "WARNING",
        "ERROR",
-       "FATAL",
+       "UNSUPP",
        "BADARG",
        "SYSERR"
 };
        "BADARG",
        "SYSERR"
 };
@@ -238,94 +287,91 @@ resize_buf(struct buf *buf, size_t initial)
 }
 
 static void
 }
 
 static void
-pset(const char *buf, int pos, struct mparse *curp)
+choose_parser(struct mparse *curp)
 {
 {
-       int              i;
+       char            *cp, *ep;
+       int              format;
 
        /*
 
        /*
-        * Try to intuit which kind of manual parser should be used.  If
-        * passed in by command-line (-man, -mdoc), then use that
-        * explicitly.  If passed as -mandoc, then try to guess from the
-        * line: either skip dot-lines, use -mdoc when finding `.Dt', or
-        * default to -man, which is more lenient.
-        *
-        * Separate out pmdoc/pman from mdoc/man: the first persists
-        * through all parsers, while the latter is used per-parse.
+        * If neither command line arguments -mdoc or -man select
+        * a parser nor the roff parser found a .Dd or .TH macro
+        * yet, look ahead in the main input buffer.
         */
 
         */
 
-       if ('.' == buf[0] || '\'' == buf[0]) {
-               for (i = 1; buf[i]; i++)
-                       if (' ' != buf[i] && '\t' != buf[i])
+       if ((format = roff_getformat(curp->roff)) == 0) {
+               cp = curp->primary->buf;
+               ep = cp + curp->primary->sz;
+               while (cp < ep) {
+                       if (*cp == '.' || *cp == '\'') {
+                               cp++;
+                               if (cp[0] == 'D' && cp[1] == 'd') {
+                                       format = MPARSE_MDOC;
+                                       break;
+                               }
+                               if (cp[0] == 'T' && cp[1] == 'H') {
+                                       format = MPARSE_MAN;
+                                       break;
+                               }
+                       }
+                       cp = memchr(cp, '\n', ep - cp);
+                       if (cp == NULL)
                                break;
                                break;
-               if ('\0' == buf[i])
-                       return;
-       }
-
-       if (MPARSE_MDOC & curp->options) {
-               if (NULL == curp->pmdoc)
-                       curp->pmdoc = mdoc_alloc(
-                           curp->roff, curp, curp->defos,
-                           MPARSE_QUICK & curp->options ? 1 : 0);
-               assert(curp->pmdoc);
-               curp->mdoc = curp->pmdoc;
-               return;
-       } else if (MPARSE_MAN & curp->options) {
-               if (NULL == curp->pman)
-                       curp->pman = man_alloc(curp->roff, curp,
-                           MPARSE_QUICK & curp->options ? 1 : 0);
-               assert(curp->pman);
-               curp->man = curp->pman;
-               return;
+                       cp++;
+               }
        }
 
        }
 
-       if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3))  {
-               if (NULL == curp->pmdoc)
-                       curp->pmdoc = mdoc_alloc(
-                           curp->roff, curp, curp->defos,
-                           MPARSE_QUICK & curp->options ? 1 : 0);
-               assert(curp->pmdoc);
-               curp->mdoc = curp->pmdoc;
-               return;
+       if (format == MPARSE_MDOC) {
+               curp->man->macroset = MACROSET_MDOC;
+               if (curp->man->mdocmac == NULL)
+                       curp->man->mdocmac = roffhash_alloc(MDOC_Dd, MDOC_MAX);
+       } else {
+               curp->man->macroset = MACROSET_MAN;
+               if (curp->man->manmac == NULL)
+                       curp->man->manmac = roffhash_alloc(MAN_TH, MAN_MAX);
        }
        }
-
-       if (NULL == curp->pman)
-               curp->pman = man_alloc(curp->roff, curp,
-                   MPARSE_QUICK & curp->options ? 1 : 0);
-       assert(curp->pman);
-       curp->man = curp->pman;
+       curp->man->first->tok = TOKEN_NONE;
 }
 
 /*
 }
 
 /*
- * Main parse routine for an opened file.  This is called for each
- * opened file and simply loops around the full input file, possibly
- * nesting (i.e., with `so').
+ * Main parse routine for a buffer.
+ * It assumes encoding and line numbering are already set up.
+ * It can recurse directly (for invocations of user-defined
+ * macros, inline equations, and input line traps)
+ * and indirectly (for .so file inclusion).
  */
  */
-static void
-mparse_buf_r(struct mparse *curp, struct buf blk, int start)
+static int
+mparse_buf_r(struct mparse *curp, struct buf blk, size_t i, int start)
 {
 {
-       const struct tbl_span   *span;
        struct buf       ln;
        struct buf       ln;
+       const char      *save_file;
+       char            *cp;
+       size_t           pos; /* byte number in the ln buffer */
        enum rofferr     rr;
        enum rofferr     rr;
-       int              i, of, rc;
-       int              pos; /* byte number in the ln buffer */
+       int              of;
        int              lnn; /* line number in the real file */
        int              lnn; /* line number in the real file */
+       int              fd;
        unsigned char    c;
 
        unsigned char    c;
 
-       memset(&ln, 0, sizeof(struct buf));
+       memset(&ln, 0, sizeof(ln));
 
        lnn = curp->line;
        pos = 0;
 
 
        lnn = curp->line;
        pos = 0;
 
-       for (i = 0; i < (int)blk.sz; ) {
+       while (i < blk.sz) {
                if (0 == pos && '\0' == blk.buf[i])
                        break;
 
                if (start) {
                        curp->line = lnn;
                        curp->reparse_count = 0;
                if (0 == pos && '\0' == blk.buf[i])
                        break;
 
                if (start) {
                        curp->line = lnn;
                        curp->reparse_count = 0;
+
+                       if (lnn < 3 &&
+                           curp->filenc & MPARSE_UTF8 &&
+                           curp->filenc & MPARSE_LATIN1)
+                               curp->filenc = preconv_cue(&blk, i);
                }
 
                }
 
-               while (i < (int)blk.sz && (start || '\0' != blk.buf[i])) {
+               while (i < blk.sz && (start || blk.buf[i] != '\0')) {
 
                        /*
                         * When finding an unescaped newline character,
 
                        /*
                         * When finding an unescaped newline character,
@@ -333,7 +379,7 @@ mparse_buf_r(struct mparse *curp, struct buf blk, int start)
                         * Skip a preceding carriage return, if any.
                         */
 
                         * Skip a preceding carriage return, if any.
                         */
 
-                       if ('\r' == blk.buf[i] && i + 1 < (int)blk.sz &&
+                       if ('\r' == blk.buf[i] && i + 1 < blk.sz &&
                            '\n' == blk.buf[i + 1])
                                ++i;
                        if ('\n' == blk.buf[i]) {
                            '\n' == blk.buf[i + 1])
                                ++i;
                        if ('\n' == blk.buf[i]) {
@@ -343,100 +389,52 @@ mparse_buf_r(struct mparse *curp, struct buf blk, int start)
                        }
 
                        /*
                        }
 
                        /*
-                        * Make sure we have space for at least
-                        * one backslash and one other character
-                        * and the trailing NUL byte.
+                        * Make sure we have space for the worst
+                        * case of 11 bytes: "\\[u10ffff]\0"
                         */
 
                         */
 
-                       if (pos + 2 >= (int)ln.sz)
+                       if (pos + 11 > ln.sz)
                                resize_buf(&ln, 256);
 
                        /*
                                resize_buf(&ln, 256);
 
                        /*
-                        * Warn about bogus characters.  If you're using
-                        * non-ASCII encoding, you're screwing your
-                        * readers.  Since I'd rather this not happen,
-                        * I'll be helpful and replace these characters
-                        * with "?", so we don't display gibberish.
-                        * Note to manual writers: use special characters.
+                        * Encode 8-bit input.
                         */
 
                         */
 
-                       c = (unsigned char) blk.buf[i];
-
-                       if ( ! (isascii(c) &&
-                           (isgraph(c) || isblank(c)))) {
-                               mandoc_msg(MANDOCERR_BADCHAR, curp,
-                                   curp->line, pos, NULL);
-                               i++;
-                               ln.buf[pos++] = '?';
-                               continue;
-                       }
-
-                       /* Trailing backslash = a plain char. */
-
-                       if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
-                               ln.buf[pos++] = blk.buf[i++];
+                       c = blk.buf[i];
+                       if (c & 0x80) {
+                               if ( ! (curp->filenc && preconv_encode(
+                                   &blk, &i, &ln, &pos, &curp->filenc))) {
+                                       mandoc_vmsg(MANDOCERR_CHAR_BAD, curp,
+                                           curp->line, pos, "0x%x", c);
+                                       ln.buf[pos++] = '?';
+                                       i++;
+                               }
                                continue;
                        }
 
                        /*
                                continue;
                        }
 
                        /*
-                        * Found escape and at least one other character.
-                        * When it's a newline character, skip it.
-                        * When there is a carriage return in between,
-                        * skip that one as well.
+                        * Exclude control characters.
                         */
 
                         */
 
-                       if ('\r' == blk.buf[i + 1] && i + 2 < (int)blk.sz &&
-                           '\n' == blk.buf[i + 2])
-                               ++i;
-                       if ('\n' == blk.buf[i + 1]) {
-                               i += 2;
-                               ++lnn;
-                               continue;
-                       }
-
-                       if ('"' == blk.buf[i + 1] || '#' == blk.buf[i + 1]) {
-                               i += 2;
-                               /* Comment, skip to end of line */
-                               for (; i < (int)blk.sz; ++i) {
-                                       if ('\n' == blk.buf[i]) {
-                                               ++i;
-                                               ++lnn;
-                                               break;
-                                       }
-                               }
-
-                               /* Backout trailing whitespaces */
-                               for (; pos > 0; --pos) {
-                                       if (ln.buf[pos - 1] != ' ')
-                                               break;
-                                       if (pos > 2 && ln.buf[pos - 2] == '\\')
-                                               break;
-                               }
-                               break;
-                       }
-
-                       /* Catch escaped bogus characters. */
-
-                       c = (unsigned char) blk.buf[i+1];
-
-                       if ( ! (isascii(c) &&
-                           (isgraph(c) || isblank(c)))) {
-                               mandoc_msg(MANDOCERR_BADCHAR, curp,
-                                   curp->line, pos, NULL);
-                               i += 2;
-                               ln.buf[pos++] = '?';
+                       if (c == 0x7f || (c < 0x20 && c != 0x09)) {
+                               mandoc_vmsg(c == 0x00 || c == 0x04 ||
+                                   c > 0x0a ? MANDOCERR_CHAR_BAD :
+                                   MANDOCERR_CHAR_UNSUPP,
+                                   curp, curp->line, pos, "0x%x", c);
+                               i++;
+                               if (c != '\r')
+                                       ln.buf[pos++] = '?';
                                continue;
                        }
 
                                continue;
                        }
 
-                       /* Some other escape sequence, copy & cont. */
-
-                       ln.buf[pos++] = blk.buf[i++];
                        ln.buf[pos++] = blk.buf[i++];
                }
 
                        ln.buf[pos++] = blk.buf[i++];
                }
 
-               if (pos >= (int)ln.sz)
+               if (pos + 1 >= ln.sz)
                        resize_buf(&ln, 256);
 
                        resize_buf(&ln, 256);
 
+               if (i == blk.sz || blk.buf[i] == '\0')
+                       ln.buf[pos++] = '\n';
                ln.buf[pos] = '\0';
 
                /*
                ln.buf[pos] = '\0';
 
                /*
@@ -471,35 +469,34 @@ mparse_buf_r(struct mparse *curp, struct buf blk, int start)
                                [curp->secondary->sz] = '\0';
                }
 rerun:
                                [curp->secondary->sz] = '\0';
                }
 rerun:
-               rr = roff_parseln(curp->roff, curp->line,
-                   &ln.buf, &ln.sz, of, &of);
+               rr = roff_parseln(curp->roff, curp->line, &ln, &of);
 
                switch (rr) {
                case ROFF_REPARSE:
 
                switch (rr) {
                case ROFF_REPARSE:
-                       if (REPARSE_LIMIT >= ++curp->reparse_count)
-                               mparse_buf_r(curp, ln, 0);
-                       else
+                       if (++curp->reparse_count > REPARSE_LIMIT)
                                mandoc_msg(MANDOCERR_ROFFLOOP, curp,
                                    curp->line, pos, NULL);
                                mandoc_msg(MANDOCERR_ROFFLOOP, curp,
                                    curp->line, pos, NULL);
-                       pos = 0;
-                       continue;
+                       else if (mparse_buf_r(curp, ln, of, 0) == 1 ||
+                           start == 1) {
+                               pos = 0;
+                               continue;
+                       }
+                       free(ln.buf);
+                       return 0;
                case ROFF_APPEND:
                case ROFF_APPEND:
-                       pos = (int)strlen(ln.buf);
+                       pos = strlen(ln.buf);
                        continue;
                case ROFF_RERUN:
                        goto rerun;
                case ROFF_IGN:
                        pos = 0;
                        continue;
                        continue;
                case ROFF_RERUN:
                        goto rerun;
                case ROFF_IGN:
                        pos = 0;
                        continue;
-               case ROFF_ERR:
-                       assert(MANDOCLEVEL_FATAL <= curp->file_status);
-                       break;
                case ROFF_SO:
                case ROFF_SO:
-                       if (0 == (MPARSE_SO & curp->options) &&
-                           (i >= (int)blk.sz || '\0' == blk.buf[i])) {
+                       if ( ! (curp->options & MPARSE_SO) &&
+                           (i >= blk.sz || blk.buf[i] == '\0')) {
                                curp->sodest = mandoc_strdup(ln.buf + of);
                                free(ln.buf);
                                curp->sodest = mandoc_strdup(ln.buf + of);
                                free(ln.buf);
-                               return;
+                               return 1;
                        }
                        /*
                         * We remove `so' clauses from our lookaside
                        }
                        /*
                         * We remove `so' clauses from our lookaside
@@ -508,12 +505,23 @@ rerun:
                         */
                        if (curp->secondary)
                                curp->secondary->sz -= pos + 1;
                         */
                        if (curp->secondary)
                                curp->secondary->sz -= pos + 1;
-                       mparse_readfd(curp, -1, ln.buf + of);
-                       if (MANDOCLEVEL_FATAL <= curp->file_status) {
+                       save_file = curp->file;
+                       if ((fd = mparse_open(curp, ln.buf + of)) != -1) {
+                               mparse_readfd(curp, fd, ln.buf + of);
+                               close(fd);
+                               curp->file = save_file;
+                       } else {
+                               curp->file = save_file;
                                mandoc_vmsg(MANDOCERR_SO_FAIL,
                                    curp, curp->line, pos,
                                    ".so %s", ln.buf + of);
                                mandoc_vmsg(MANDOCERR_SO_FAIL,
                                    curp, curp->line, pos,
                                    ".so %s", ln.buf + of);
-                               break;
+                               ln.sz = mandoc_asprintf(&cp,
+                                   ".sp\nSee the file %s.\n.sp",
+                                   ln.buf + of);
+                               free(ln.buf);
+                               ln.buf = cp;
+                               of = 0;
+                               mparse_buf_r(curp, ln, of, 0);
                        }
                        pos = 0;
                        continue;
                        }
                        pos = 0;
                        continue;
@@ -521,63 +529,13 @@ rerun:
                        break;
                }
 
                        break;
                }
 
-               /*
-                * If we encounter errors in the recursive parse, make
-                * sure we don't continue parsing.
-                */
-
-               if (MANDOCLEVEL_FATAL <= curp->file_status)
-                       break;
-
-               /*
-                * If input parsers have not been allocated, do so now.
-                * We keep these instanced between parsers, but set them
-                * locally per parse routine since we can use different
-                * parsers with each one.
-                */
-
-               if ( ! (curp->man || curp->mdoc))
-                       pset(ln.buf + of, pos - of, curp);
+               if (curp->man->macroset == MACROSET_NONE)
+                       choose_parser(curp);
 
 
-               /*
-                * Lastly, push down into the parsers themselves.  One
-                * of these will have already been set in the pset()
-                * routine.
-                * If libroff returns ROFF_TBL, then add it to the
-                * currently open parse.  Since we only get here if
-                * there does exist data (see tbl_data.c), we're
-                * guaranteed that something's been allocated.
-                * Do the same for ROFF_EQN.
-                */
-
-               rc = -1;
-
-               if (ROFF_TBL == rr)
-                       while (NULL != (span = roff_span(curp->roff))) {
-                               rc = curp->man ?
-                                   man_addspan(curp->man, span) :
-                                   mdoc_addspan(curp->mdoc, span);
-                               if (0 == rc)
-                                       break;
-                       }
-               else if (ROFF_EQN == rr)
-                       rc = curp->mdoc ?
-                           mdoc_addeqn(curp->mdoc,
-                               roff_eqn(curp->roff)) :
-                           man_addeqn(curp->man,
-                               roff_eqn(curp->roff));
-               else if (curp->man || curp->mdoc)
-                       rc = curp->man ?
-                           man_parseln(curp->man,
-                               curp->line, ln.buf, of) :
-                           mdoc_parseln(curp->mdoc,
-                               curp->line, ln.buf, of);
-
-               if (0 == rc) {
-                       assert(MANDOCLEVEL_FATAL <= curp->file_status);
-                       break;
-               } else if (2 == rc)
-                       break;
+               if ((curp->man->macroset == MACROSET_MDOC ?
+                   mdoc_parseln(curp->man, curp->line, ln.buf, of) :
+                   man_parseln(curp->man, curp->line, ln.buf, of)) == 2)
+                               break;
 
                /* Temporary buffers typically are not full. */
 
 
                /* Temporary buffers typically are not full. */
 
@@ -590,24 +548,20 @@ rerun:
        }
 
        free(ln.buf);
        }
 
        free(ln.buf);
+       return 1;
 }
 
 static int
 read_whole_file(struct mparse *curp, const char *file, int fd,
                struct buf *fb, int *with_mmap)
 {
 }
 
 static int
 read_whole_file(struct mparse *curp, const char *file, int fd,
                struct buf *fb, int *with_mmap)
 {
+       struct stat      st;
+       gzFile           gz;
        size_t           off;
        ssize_t          ssz;
 
        size_t           off;
        ssize_t          ssz;
 
-#ifdef HAVE_MMAP
-       struct stat      st;
-       if (-1 == fstat(fd, &st)) {
-               curp->file_status = MANDOCLEVEL_SYSERR;
-               if (curp->mmsg)
-                       (*curp->mmsg)(MANDOCERR_SYSSTAT, curp->file_status,
-                           file, 0, 0, strerror(errno));
-               return(0);
-       }
+       if (fstat(fd, &st) == -1)
+               err((int)MANDOCLEVEL_SYSERR, "%s", file);
 
        /*
         * If we're a regular file, try just reading in the whole entry
 
        /*
         * If we're a regular file, try just reading in the whole entry
@@ -616,21 +570,23 @@ read_whole_file(struct mparse *curp, const char *file, int fd,
         * concerned that this is going to tank any machines.
         */
 
         * concerned that this is going to tank any machines.
         */
 
-       if (S_ISREG(st.st_mode)) {
-               if (st.st_size >= (1U << 31)) {
-                       curp->file_status = MANDOCLEVEL_FATAL;
-                       if (curp->mmsg)
-                               (*curp->mmsg)(MANDOCERR_TOOLARGE,
-                                   curp->file_status, file, 0, 0, NULL);
-                       return(0);
+       if (curp->gzip == 0 && S_ISREG(st.st_mode)) {
+               if (st.st_size > 0x7fffffff) {
+                       mandoc_msg(MANDOCERR_TOOLARGE, curp, 0, 0, NULL);
+                       return 0;
                }
                *with_mmap = 1;
                fb->sz = (size_t)st.st_size;
                fb->buf = mmap(NULL, fb->sz, PROT_READ, MAP_SHARED, fd, 0);
                if (fb->buf != MAP_FAILED)
                }
                *with_mmap = 1;
                fb->sz = (size_t)st.st_size;
                fb->buf = mmap(NULL, fb->sz, PROT_READ, MAP_SHARED, fd, 0);
                if (fb->buf != MAP_FAILED)
-                       return(1);
+                       return 1;
        }
        }
-#endif
+
+       if (curp->gzip) {
+               if ((gz = gzdopen(fd, "rb")) == NULL)
+                       err((int)MANDOCLEVEL_SYSERR, "%s", file);
+       } else
+               gz = NULL;
 
        /*
         * If this isn't a regular file (like, say, stdin), then we must
 
        /*
         * If this isn't a regular file (like, say, stdin), then we must
@@ -644,66 +600,47 @@ read_whole_file(struct mparse *curp, const char *file, int fd,
        for (;;) {
                if (off == fb->sz) {
                        if (fb->sz == (1U << 31)) {
        for (;;) {
                if (off == fb->sz) {
                        if (fb->sz == (1U << 31)) {
-                               curp->file_status = MANDOCLEVEL_FATAL;
-                               if (curp->mmsg)
-                                       (*curp->mmsg)(MANDOCERR_TOOLARGE,
-                                           curp->file_status,
-                                           file, 0, 0, NULL);
+                               mandoc_msg(MANDOCERR_TOOLARGE, curp,
+                                   0, 0, NULL);
                                break;
                        }
                        resize_buf(fb, 65536);
                }
                                break;
                        }
                        resize_buf(fb, 65536);
                }
-               ssz = read(fd, fb->buf + (int)off, fb->sz - off);
+               ssz = curp->gzip ?
+                   gzread(gz, fb->buf + (int)off, fb->sz - off) :
+                   read(fd, fb->buf + (int)off, fb->sz - off);
                if (ssz == 0) {
                        fb->sz = off;
                if (ssz == 0) {
                        fb->sz = off;
-                       return(1);
-               }
-               if (ssz == -1) {
-                       curp->file_status = MANDOCLEVEL_SYSERR;
-                       if (curp->mmsg)
-                               (*curp->mmsg)(MANDOCERR_SYSREAD,
-                                   curp->file_status, file, 0, 0,
-                                   strerror(errno));
-                       break;
+                       return 1;
                }
                }
+               if (ssz == -1)
+                       err((int)MANDOCLEVEL_SYSERR, "%s", file);
                off += (size_t)ssz;
        }
 
        free(fb->buf);
        fb->buf = NULL;
                off += (size_t)ssz;
        }
 
        free(fb->buf);
        fb->buf = NULL;
-       return(0);
+       return 0;
 }
 
 static void
 mparse_end(struct mparse *curp)
 {
 }
 
 static void
 mparse_end(struct mparse *curp)
 {
-
-       if (MANDOCLEVEL_FATAL <= curp->file_status)
-               return;
-
-       if (curp->mdoc && ! mdoc_endparse(curp->mdoc)) {
-               assert(MANDOCLEVEL_FATAL <= curp->file_status);
-               return;
-       }
-
-       if (curp->man && ! man_endparse(curp->man)) {
-               assert(MANDOCLEVEL_FATAL <= curp->file_status);
-               return;
-       }
-
-       if ( ! (curp->mdoc || curp->man || curp->sodest)) {
-               mandoc_msg(MANDOCERR_NOTMANUAL, curp, 0, 0, NULL);
-               curp->file_status = MANDOCLEVEL_FATAL;
-               return;
-       }
-
+       if (curp->man->macroset == MACROSET_NONE)
+               curp->man->macroset = MACROSET_MAN;
+       if (curp->man->macroset == MACROSET_MDOC)
+               mdoc_endparse(curp->man);
+       else
+               man_endparse(curp->man);
        roff_endparse(curp->roff);
 }
 
 static void
 mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file)
 {
        roff_endparse(curp->roff);
 }
 
 static void
 mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file)
 {
+       struct buf      *svprimary;
        const char      *svfile;
        const char      *svfile;
+       size_t           offset;
        static int       recursion_depth;
 
        if (64 < recursion_depth) {
        static int       recursion_depth;
 
        if (64 < recursion_depth) {
@@ -714,120 +651,158 @@ mparse_parse_buffer(struct mparse *curp, struct buf blk, const char *file)
        /* Line number is per-file. */
        svfile = curp->file;
        curp->file = file;
        /* Line number is per-file. */
        svfile = curp->file;
        curp->file = file;
+       svprimary = curp->primary;
+       curp->primary = &blk;
        curp->line = 1;
        recursion_depth++;
 
        curp->line = 1;
        recursion_depth++;
 
-       mparse_buf_r(curp, blk, 1);
+       /* Skip an UTF-8 byte order mark. */
+       if (curp->filenc & MPARSE_UTF8 && blk.sz > 2 &&
+           (unsigned char)blk.buf[0] == 0xef &&
+           (unsigned char)blk.buf[1] == 0xbb &&
+           (unsigned char)blk.buf[2] == 0xbf) {
+               offset = 3;
+               curp->filenc &= ~MPARSE_LATIN1;
+       } else
+               offset = 0;
+
+       mparse_buf_r(curp, blk, offset, 1);
 
 
-       if (0 == --recursion_depth && MANDOCLEVEL_FATAL > curp->file_status)
+       if (--recursion_depth == 0)
                mparse_end(curp);
 
                mparse_end(curp);
 
+       curp->primary = svprimary;
        curp->file = svfile;
 }
 
 enum mandoclevel
        curp->file = svfile;
 }
 
 enum mandoclevel
-mparse_readmem(struct mparse *curp, const void *buf, size_t len,
+mparse_readmem(struct mparse *curp, void *buf, size_t len,
                const char *file)
 {
        struct buf blk;
 
                const char *file)
 {
        struct buf blk;
 
-       blk.buf = UNCONST(buf);
+       blk.buf = buf;
        blk.sz = len;
 
        mparse_parse_buffer(curp, blk, file);
        blk.sz = len;
 
        mparse_parse_buffer(curp, blk, file);
-       return(curp->file_status);
+       return curp->file_status;
 }
 
 }
 
+/*
+ * Read the whole file into memory and call the parsers.
+ * Called recursively when an .so request is encountered.
+ */
 enum mandoclevel
 mparse_readfd(struct mparse *curp, int fd, const char *file)
 {
        struct buf       blk;
        int              with_mmap;
 enum mandoclevel
 mparse_readfd(struct mparse *curp, int fd, const char *file)
 {
        struct buf       blk;
        int              with_mmap;
-
-       if (-1 == fd && -1 == (fd = open(file, O_RDONLY, 0))) {
-               curp->file_status = MANDOCLEVEL_SYSERR;
-               if (curp->mmsg)
-                       (*curp->mmsg)(MANDOCERR_SYSOPEN,
-                           curp->file_status,
-                           file, 0, 0, strerror(errno));
-               goto out;
+       int              save_filenc;
+
+       if (read_whole_file(curp, file, fd, &blk, &with_mmap)) {
+               save_filenc = curp->filenc;
+               curp->filenc = curp->options &
+                   (MPARSE_UTF8 | MPARSE_LATIN1);
+               mparse_parse_buffer(curp, blk, file);
+               curp->filenc = save_filenc;
+               if (with_mmap)
+                       munmap(blk.buf, blk.sz);
+               else
+                       free(blk.buf);
        }
        }
+       return curp->file_status;
+}
+
+int
+mparse_open(struct mparse *curp, const char *file)
+{
+       char             *cp;
+       int               fd;
+
+       curp->file = file;
+       cp = strrchr(file, '.');
+       curp->gzip = (cp != NULL && ! strcmp(cp + 1, "gz"));
+
+       /* First try to use the filename as it is. */
+
+       if ((fd = open(file, O_RDONLY)) != -1)
+               return fd;
 
        /*
 
        /*
-        * Run for each opened file; may be called more than once for
-        * each full parse sequence if the opened file is nested (i.e.,
-        * from `so').  Simply sucks in the whole file and moves into
-        * the parse phase for the file.
+        * If that doesn't work and the filename doesn't
+        * already  end in .gz, try appending .gz.
         */
 
         */
 
-       if ( ! read_whole_file(curp, file, fd, &blk, &with_mmap))
-               goto out;
-
-       mparse_parse_buffer(curp, blk, file);
+       if ( ! curp->gzip) {
+               mandoc_asprintf(&cp, "%s.gz", file);
+               fd = open(cp, O_RDONLY);
+               free(cp);
+               if (fd != -1) {
+                       curp->gzip = 1;
+                       return fd;
+               }
+       }
 
 
-#ifdef HAVE_MMAP
-       if (with_mmap)
-               munmap(blk.buf, blk.sz);
-       else
-#endif
-               free(blk.buf);
+       /* Neither worked, give up. */
 
 
-       if (STDIN_FILENO != fd && -1 == close(fd))
-               perror(file);
-out:
-       return(curp->file_status);
+       mandoc_msg(MANDOCERR_FILE, curp, 0, 0, strerror(errno));
+       return -1;
 }
 
 struct mparse *
 }
 
 struct mparse *
-mparse_alloc(int options, enum mandoclevel wlevel,
-               mandocmsg mmsg, char *defos)
+mparse_alloc(int options, enum mandocerr mmin, mandocmsg mmsg,
+    enum mandoc_os os_e, const char *os_s)
 {
        struct mparse   *curp;
 
 {
        struct mparse   *curp;
 
-       assert(wlevel <= MANDOCLEVEL_FATAL);
-
        curp = mandoc_calloc(1, sizeof(struct mparse));
 
        curp->options = options;
        curp = mandoc_calloc(1, sizeof(struct mparse));
 
        curp->options = options;
-       curp->wlevel = wlevel;
+       curp->mmin = mmin;
        curp->mmsg = mmsg;
        curp->mmsg = mmsg;
-       curp->defos = defos;
+       curp->os_s = os_s;
 
        curp->roff = roff_alloc(curp, options);
 
        curp->roff = roff_alloc(curp, options);
-       return(curp);
+       curp->man = roff_man_alloc(curp->roff, curp, curp->os_s,
+               curp->options & MPARSE_QUICK ? 1 : 0);
+       if (curp->options & MPARSE_MDOC) {
+               curp->man->macroset = MACROSET_MDOC;
+               if (curp->man->mdocmac == NULL)
+                       curp->man->mdocmac = roffhash_alloc(MDOC_Dd, MDOC_MAX);
+       } else if (curp->options & MPARSE_MAN) {
+               curp->man->macroset = MACROSET_MAN;
+               if (curp->man->manmac == NULL)
+                       curp->man->manmac = roffhash_alloc(MAN_TH, MAN_MAX);
+       }
+       curp->man->first->tok = TOKEN_NONE;
+       curp->man->meta.os_e = os_e;
+       return curp;
 }
 
 void
 mparse_reset(struct mparse *curp)
 {
 }
 
 void
 mparse_reset(struct mparse *curp)
 {
-
        roff_reset(curp->roff);
        roff_reset(curp->roff);
+       roff_man_reset(curp->man);
+
+       free(curp->sodest);
+       curp->sodest = NULL;
 
 
-       if (curp->mdoc)
-               mdoc_reset(curp->mdoc);
-       if (curp->man)
-               man_reset(curp->man);
        if (curp->secondary)
                curp->secondary->sz = 0;
 
        curp->file_status = MANDOCLEVEL_OK;
        if (curp->secondary)
                curp->secondary->sz = 0;
 
        curp->file_status = MANDOCLEVEL_OK;
-       curp->mdoc = NULL;
-       curp->man = NULL;
-
-       free(curp->sodest);
-       curp->sodest = NULL;
+       curp->gzip = 0;
 }
 
 void
 mparse_free(struct mparse *curp)
 {
 
 }
 
 void
 mparse_free(struct mparse *curp)
 {
 
-       if (curp->pmdoc)
-               mdoc_free(curp->pmdoc);
-       if (curp->pman)
-               man_free(curp->pman);
-       if (curp->roff)
-               roff_free(curp->roff);
+       roffhash_free(curp->man->mdocmac);
+       roffhash_free(curp->man->manmac);
+       roff_man_free(curp->man);
+       roff_free(curp->roff);
        if (curp->secondary)
                free(curp->secondary->buf);
 
        if (curp->secondary)
                free(curp->secondary->buf);
 
@@ -837,21 +812,25 @@ mparse_free(struct mparse *curp)
 }
 
 void
 }
 
 void
-mparse_result(struct mparse *curp,
-       struct mdoc **mdoc, struct man **man, char **sodest)
+mparse_result(struct mparse *curp, struct roff_man **man,
+       char **sodest)
 {
 
        if (sodest && NULL != (*sodest = curp->sodest)) {
 {
 
        if (sodest && NULL != (*sodest = curp->sodest)) {
-               *mdoc = NULL;
                *man = NULL;
                return;
        }
                *man = NULL;
                return;
        }
-       if (mdoc)
-               *mdoc = curp->mdoc;
        if (man)
                *man = curp->man;
 }
 
        if (man)
                *man = curp->man;
 }
 
+void
+mparse_updaterc(struct mparse *curp, enum mandoclevel *rc)
+{
+       if (curp->file_status > *rc)
+               *rc = curp->file_status;
+}
+
 void
 mandoc_vmsg(enum mandocerr t, struct mparse *m,
                int ln, int pos, const char *fmt, ...)
 void
 mandoc_vmsg(enum mandocerr t, struct mparse *m,
                int ln, int pos, const char *fmt, ...)
@@ -872,13 +851,13 @@ mandoc_msg(enum mandocerr er, struct mparse *m,
 {
        enum mandoclevel level;
 
 {
        enum mandoclevel level;
 
-       level = MANDOCLEVEL_FATAL;
+       if (er < m->mmin && er != MANDOCERR_FILE)
+               return;
+
+       level = MANDOCLEVEL_UNSUPP;
        while (er < mandoclimits[level])
                level--;
 
        while (er < mandoclimits[level])
                level--;
 
-       if (level < m->wlevel)
-               return;
-
        if (m->mmsg)
                (*m->mmsg)(er, level, m->file, ln, col, msg);
 
        if (m->mmsg)
                (*m->mmsg)(er, level, m->file, ln, col, msg);
 
@@ -890,13 +869,13 @@ const char *
 mparse_strerror(enum mandocerr er)
 {
 
 mparse_strerror(enum mandocerr er)
 {
 
-       return(mandocerrs[er]);
+       return mandocerrs[er];
 }
 
 const char *
 mparse_strlevel(enum mandoclevel lvl)
 {
 }
 
 const char *
 mparse_strlevel(enum mandoclevel lvl)
 {
-       return(mandoclevels[lvl]);
+       return mandoclevels[lvl];
 }
 
 void
 }
 
 void
@@ -912,5 +891,5 @@ mparse_getkeep(const struct mparse *p)
 {
 
        assert(p->secondary);
 {
 
        assert(p->secondary);
-       return(p->secondary->sz ? p->secondary->buf : NULL);
+       return p->secondary->sz ? p->secondary->buf : NULL;
 }
 }
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