Re-admit the simple case of `.ig' that works with groff's stranger invocations.

[mandoc.git] / main.c

diff --git a/main.c b/main.c
index 6644ba554adfe78effb111d889a3bd8acae56da4..7ad8a3e59d6d906fc70bc0bb26b4e7139a8b157c 100644 (file)
--- a/main.c
+++ b/main.c
@@ -1,144 +1,160 @@
-/* $Id: main.c,v 1.13 2009/03/23 21:20:24 kristaps Exp $ */
+/*     $Id: main.c,v 1.76 2010/05/16 10:59:36 kristaps Exp $ */

 /*
 /*

- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@openbsd.org>
+ * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>

  *
  * Permission to use, copy, modify, and distribute this software for any
  *
  * 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.
+ * 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 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
- * AUTHOR 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.
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR 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.

  */
  */

+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <sys/mman.h>

 #include <sys/stat.h>
 
 #include <assert.h>
 #include <sys/stat.h>
 
 #include <assert.h>

-#include <err.h>

 #include <fcntl.h>
 #include <stdio.h>
 #include <fcntl.h>
 #include <stdio.h>

+#include <stdint.h>

 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 

+#include "mandoc.h"

 #include "mdoc.h"
 #include "man.h"
 #include "mdoc.h"
 #include "man.h"

+#include "roff.h"
+#include "main.h"

 
 

-#ifdef __linux__
-extern int               getsubopt(char **, char * const *, char **);
-# ifndef __dead
-#  define __dead __attribute__((__noreturn__))
-# endif
-#elif defined(__dead2)
-# ifndef __dead
-#  define __dead __dead2
+#define        UNCONST(a)      ((void *)(uintptr_t)(const void *)(a))
+
+/* FIXME: Intel's compiler?  LLVM?  pcc?  */
+
+#if !defined(__GNUC__) || (__GNUC__ < 2)
+# if !defined(lint)
+#  define __attribute__(x)

 # endif
 # endif

-#endif
+#endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
+
+typedef        void            (*out_mdoc)(void *, const struct mdoc *);
+typedef        void            (*out_man)(void *, const struct man *);
+typedef        void            (*out_free)(void *);

 
 struct buf {
        char             *buf;
        size_t            sz;
 };
 
 
 struct buf {
        char             *buf;
        size_t            sz;
 };
 

-struct curparse {
-       const char       *file;
-       int               wflags;
-#define        WARN_WALL         0x03          /* All-warnings mask. */
-#define        WARN_WCOMPAT     (1 << 0)       /* Compatibility warnings. */
-#define        WARN_WSYNTAX     (1 << 1)       /* Syntax warnings. */
-#define        WARN_WERR        (1 << 2)       /* Warnings->errors. */
-};
-

 enum   intt {
 enum   intt {

-       INTT_MDOC = 0,
+       INTT_AUTO,
+       INTT_MDOC,

        INTT_MAN
 };
 
 enum   outt {
        OUTT_ASCII = 0,
        INTT_MAN
 };
 
 enum   outt {
        OUTT_ASCII = 0,

-       OUTT_LATIN1,
-       OUTT_UTF8,

        OUTT_TREE,
        OUTT_TREE,

+       OUTT_HTML,
+       OUTT_XHTML,

        OUTT_LINT
 };
 
        OUTT_LINT
 };
 

-typedef        int             (*out_run)(void *, const struct man *,
-                               const struct mdoc *);
-typedef        void            (*out_free)(void *);
-
-extern char             *__progname;
-
-extern void             *ascii_alloc(void);
-extern void             *latin1_alloc(void);
-extern void             *utf8_alloc(void);
-extern int               terminal_run(void *, const struct man *, 
-                               const struct mdoc *);
-extern int               tree_run(void *, const struct man *,
-                               const struct mdoc *);
-extern void              terminal_free(void *);
+struct curparse {
+       const char       *file;         /* Current parse. */
+       int               fd;           /* Current parse. */
+       int               wflags;
+       /* FIXME: set by max error */
+#define        WARN_WALL        (1 << 0)       /* All-warnings mask. */
+#define        WARN_WERR        (1 << 2)       /* Warnings->errors. */
+       int               fflags;
+#define        FL_IGN_SCOPE     (1 << 0)       /* Ignore scope errors. */
+#define        FL_NIGN_ESCAPE   (1 << 1)       /* Don't ignore bad escapes. */
+#define        FL_NIGN_MACRO    (1 << 2)       /* Don't ignore bad macros. */
+#define        FL_IGN_ERRORS    (1 << 4)       /* Ignore failed parse. */
+#define        FL_STRICT         FL_NIGN_ESCAPE | \
+                         FL_NIGN_MACRO
+       enum intt         inttype;      /* Input parsers... */
+       struct man       *man;
+       struct mdoc      *mdoc;
+       struct roff      *roff;
+       enum outt         outtype;      /* Output devices... */
+       out_mdoc          outmdoc;
+       out_man           outman;
+       out_free          outfree;
+       void             *outdata;
+       char              outopts[BUFSIZ];
+};

 
 

+static void              fdesc(struct curparse *);
+static void              ffile(const char *, struct curparse *);

 static int               foptions(int *, char *);
 static int               foptions(int *, char *);

-static int               toptions(enum outt *, char *);
+static struct man       *man_init(struct curparse *);
+static struct mdoc      *mdoc_init(struct curparse *);
+static struct roff      *roff_init(struct curparse *);
+static int               merr(void *, int, int, const char *); /* DEPRECATED */

 static int               moptions(enum intt *, char *);
 static int               moptions(enum intt *, char *);

+static int               mwarn(void *, int, int, const char *); /* DEPRECATED */
+static int               mmsg(enum mandocerr, void *, 
+                               int, int, const char *);
+static int               pset(const char *, int, struct curparse *,
+                               struct man **, struct mdoc **);
+static int               toptions(struct curparse *, char *);
+static void              usage(void) __attribute__((noreturn));
+static void              version(void) __attribute__((noreturn));

 static int               woptions(int *, char *);
 static int               woptions(int *, char *);

-static int               merr(void *, int, int, const char *);
-static int               mwarn(void *, int, int, 
-                               enum mdoc_warn, const char *);
-static int               file(struct buf *, struct buf *, 
-                               const char *, 
-                               struct man *, struct mdoc *);
-static int               fdesc(struct buf *, struct buf *,
-                               const char *, int, 
-                               struct man *, struct mdoc *);
-
-__dead static void       version(void);
-__dead static void       usage(void);

 
 

+static const char       *progname;
+static         int               with_error;
+static int               with_warning;

 
 int
 main(int argc, char *argv[])
 {
 
 int
 main(int argc, char *argv[])
 {

-       int              c, rc, fflags;
-       struct mdoc_cb   cb;
-       struct man      *man;
-       struct mdoc     *mdoc;
-       void            *outdata;
-       enum outt        outtype;
-       enum intt        inttype;
-       struct buf       ln, blk;
-       out_run          outrun;
-       out_free         outfree;
+       int              c;

        struct curparse  curp;
 
        struct curparse  curp;
 

-       fflags = 0;
-       outtype = OUTT_ASCII;
-       inttype = INTT_MDOC;
+       progname = strrchr(argv[0], '/');
+       if (progname == NULL)
+               progname = argv[0];
+       else
+               ++progname;
+
+       memset(&curp, 0, sizeof(struct curparse));

 
 

-       bzero(&curp, sizeof(struct curparse));
+       curp.inttype = INTT_AUTO;
+       curp.outtype = OUTT_ASCII;

 
        /* LINTED */
 
        /* LINTED */

-       while (-1 != (c = getopt(argc, argv, "f:m:VW:T:")))
+       while (-1 != (c = getopt(argc, argv, "f:m:O:T:VW:")))

                switch (c) {
                case ('f'):
                switch (c) {
                case ('f'):

-                       if ( ! foptions(&fflags, optarg))
-                               return(0);
+                       if ( ! foptions(&curp.fflags, optarg))
+                               return(EXIT_FAILURE);

                        break;
                case ('m'):
                        break;
                case ('m'):

-                       if ( ! moptions(&inttype, optarg))
-                               return(0);
+                       if ( ! moptions(&curp.inttype, optarg))
+                               return(EXIT_FAILURE);
+                       break;
+               case ('O'):
+                       (void)strlcat(curp.outopts, optarg, BUFSIZ);
+                       (void)strlcat(curp.outopts, ",", BUFSIZ);

                        break;
                case ('T'):
                        break;
                case ('T'):

-                       if ( ! toptions(&outtype, optarg))
-                               return(0);
+                       if ( ! toptions(&curp, optarg))
+                               return(EXIT_FAILURE);

                        break;
                case ('W'):
                        if ( ! woptions(&curp.wflags, optarg))
                        break;
                case ('W'):
                        if ( ! woptions(&curp.wflags, optarg))

-                               return(0);
+                               return(EXIT_FAILURE);

                        break;
                case ('V'):
                        version();
                        break;
                case ('V'):
                        version();


@@ -151,238 +167,473 @@ main(int argc, char *argv[])
        argc -= optind;
        argv += optind;
 
        argc -= optind;
        argv += optind;
 

-       /*
-        * Allocate the appropriate front-end.  Note that utf8, ascii
-        * and latin1 all resolve to the terminal front-end with
-        * different encodings (see terminal.c).  Not all frontends have
-        * cleanup or alloc routines.
-        */
+       if (NULL == *argv) {
+               curp.file = "<stdin>";
+               curp.fd = STDIN_FILENO;

 
 

-       switch (outtype) {
-       case (OUTT_LATIN1):
-               outdata = latin1_alloc();
-               outrun = terminal_run;
-               outfree = terminal_free;
-               break;
-       case (OUTT_UTF8):
-               outdata = utf8_alloc();
-               outrun = terminal_run;
-               outfree = terminal_free;
-               break;
-       case (OUTT_TREE):
-               outdata = NULL;
-               outrun = tree_run;
-               outfree = NULL;
-               break;
-       case (OUTT_LINT):
-               outdata = NULL;
-               outrun = NULL;
-               outfree = NULL;
-               break;
-       default:
-               outdata = ascii_alloc();
-               outrun = terminal_run;
-               outfree = terminal_free;
-               break;
+               fdesc(&curp);

        }
 
        }
 

-       /*
-        * All callbacks route into here, where we print them onto the
-        * screen.  XXX - for now, no path for debugging messages.
-        */
+       while (*argv) {
+               ffile(*argv, &curp);

 
 

-       cb.mdoc_msg = NULL;
-       cb.mdoc_err = merr;
-       cb.mdoc_warn = mwarn;
+               if (with_error && !(curp.fflags & FL_IGN_ERRORS))
+                       break;
+               ++argv;
+       }

 
 

-       bzero(&ln, sizeof(struct buf));
-       bzero(&blk, sizeof(struct buf));
+       if (curp.outfree)
+               (*curp.outfree)(curp.outdata);
+       if (curp.mdoc)
+               mdoc_free(curp.mdoc);
+       if (curp.man)
+               man_free(curp.man);
+       if (curp.roff)
+               roff_free(curp.roff);
+
+       return((with_warning || with_error) ? 
+                       EXIT_FAILURE :  EXIT_SUCCESS);
+}

 
 

-       man = NULL;
-       mdoc = NULL;

 
 

-       switch (inttype) {
-       case (INTT_MAN):
-               man = man_alloc();
-               break;
-       default:
-               mdoc = mdoc_alloc(&curp, fflags, &cb);
-               break;
-       }
+static void
+version(void)
+{

 
 

-       /*
-        * Loop around available files.
-        */
+       (void)printf("%s %s\n", progname, VERSION);
+       exit(EXIT_SUCCESS);
+}

 
 

-       if (NULL == *argv) {
-               curp.file = "<stdin>";
-               rc = 0;
-               c = fdesc(&blk, &ln, "stdin", 
-                               STDIN_FILENO, man, mdoc);
-
-               if (c && NULL == outrun)
-                       rc = 1;
-               else if (c && outrun && (*outrun)(outdata, man, mdoc))
-                       rc = 1;
-       } else {
-               while (*argv) {
-                       curp.file = *argv;
-                       c = file(&blk, &ln, *argv, man, mdoc);
-                       if ( ! c)
-                               break;
-                       if (outrun && ! (*outrun)(outdata, man, mdoc))
-                               break;
-                       if (man)
-                               man_reset(man);
-                       if (mdoc)
-                               mdoc_reset(mdoc);

 
 

-                       argv++;
-               }
-               rc = NULL == *argv;
-       }
+static void
+usage(void)
+{

 
 

-       if (blk.buf)
-               free(blk.buf);
-       if (ln.buf)
-               free(ln.buf);
-       if (outfree)
-               (*outfree)(outdata);
-       if (mdoc)
-               mdoc_free(mdoc);
-       if (man)
-               man_free(man);
+       (void)fprintf(stderr, "usage: %s [-V] [-foption] "
+                       "[-mformat] [-Ooption] [-Toutput] "
+                       "[-Werr] [file...]\n", progname);
+       exit(EXIT_FAILURE);
+}
+
+
+static struct man *
+man_init(struct curparse *curp)
+{
+       int              pflags;
+       struct man_cb    mancb;
+
+       mancb.man_err = merr;
+       mancb.man_warn = mwarn;
+
+       /* Defaults from mandoc.1. */
+
+       pflags = MAN_IGN_MACRO | MAN_IGN_ESCAPE;

 
 

-       return(rc ? EXIT_SUCCESS : EXIT_FAILURE);
+       if (curp->fflags & FL_NIGN_MACRO)
+               pflags &= ~MAN_IGN_MACRO;
+       if (curp->fflags & FL_NIGN_ESCAPE)
+               pflags &= ~MAN_IGN_ESCAPE;
+
+       return(man_alloc(curp, pflags, &mancb));

 }
 
 
 }
 
 

-__dead static void
-version(void)
+static struct roff *
+roff_init(struct curparse *curp)

 {
 
 {
 

-       (void)printf("%s %s\n", __progname, VERSION);
-       exit(0);
-       /* NOTREACHED */
+       return(roff_alloc(mmsg, curp));

 }
 
 
 }
 
 

-__dead static void
-usage(void)
+static struct mdoc *
+mdoc_init(struct curparse *curp)

 {
 {

+       int              pflags;
+       struct mdoc_cb   mdoccb;

 
 

-       (void)fprintf(stderr, "usage: %s [-V] [-foption...] "
-                       "[-mformat] [-Toutput] [-Werr...]\n", 
-                       __progname);
-       exit(1);
-       /* NOTREACHED */
+       mdoccb.mdoc_err = merr;
+       mdoccb.mdoc_warn = mwarn;
+
+       /* Defaults from mandoc.1. */
+
+       pflags = MDOC_IGN_MACRO | MDOC_IGN_ESCAPE;
+
+       if (curp->fflags & FL_IGN_SCOPE)
+               pflags |= MDOC_IGN_SCOPE;
+       if (curp->fflags & FL_NIGN_ESCAPE)
+               pflags &= ~MDOC_IGN_ESCAPE;
+       if (curp->fflags & FL_NIGN_MACRO)
+               pflags &= ~MDOC_IGN_MACRO;
+
+       return(mdoc_alloc(curp, pflags, &mdoccb));

 }
 
 
 }
 
 

-static int
-file(struct buf *blk, struct buf *ln, const char *file, 
-               struct man *man, struct mdoc *mdoc)
+static void
+ffile(const char *file, struct curparse *curp)

 {
 {

-       int              fd, c;

 
 

-       if (-1 == (fd = open(file, O_RDONLY, 0))) {
-               warn("%s", file);
-               return(0);
+       curp->file = file;
+       if (-1 == (curp->fd = open(curp->file, O_RDONLY, 0))) {
+               perror(curp->file);
+               with_error = 1;
+               return;

        }
 
        }
 

-       c = fdesc(blk, ln, file, fd, man, mdoc);
+       fdesc(curp);

 
 

-       if (-1 == close(fd))
-               warn("%s", file);
+       if (-1 == close(curp->fd))
+               perror(curp->file);
+}

 
 

-       return(c);
+
+static int
+resize_buf(struct buf *buf, size_t initial)
+{
+       void *tmp;
+       size_t sz;
+
+       if (buf->sz == 0)
+               sz = initial;
+       else
+               sz = 2 * buf->sz;
+       tmp = realloc(buf->buf, sz);
+       if (NULL == tmp) {
+               perror(NULL);
+               return(0);
+       }
+       buf->buf = tmp;
+       buf->sz = sz;
+       return(1);

 }
 
 
 static int
 }
 
 
 static int

-fdesc(struct buf *blk, struct buf *ln,
-               const char *f, int fd, 
-               struct man *man, struct mdoc *mdoc)
+read_whole_file(struct curparse *curp, struct buf *fb, int *with_mmap)

 {
 {

-       size_t           sz;
-       ssize_t          ssz;

        struct stat      st;
        struct stat      st;

-       int              j, i, pos, lnn;
+       size_t           off;
+       ssize_t          ssz;

 
 

-       assert( ! (man && mdoc));
+       if (-1 == fstat(curp->fd, &st)) {
+               perror(curp->file);
+               with_error = 1;
+               return(0);
+       }

 
        /*
 
        /*

-        * Two buffers: ln and buf.  buf is the input buffer, optimised
-        * for each file's block size.  ln is a line buffer.  Both
-        * growable, hence passed in by ptr-ptr.
+        * If we're a regular file, try just reading in the whole entry
+        * via mmap().  This is faster than reading it into blocks, and
+        * since each file is only a few bytes to begin with, I'm not
+        * concerned that this is going to tank any machines.

         */
 
         */
 

-       sz = BUFSIZ;
-
-       if (-1 == fstat(fd, &st))
-               warnx("%s", f);
-       else if ((size_t)st.st_blksize > sz)
-               sz = st.st_blksize;
-
-       if (sz > blk->sz) {
-               blk->buf = realloc(blk->buf, sz);
-               if (NULL == blk->buf)
-                       err(1, "realloc");
-               blk->sz = sz;
+       if (S_ISREG(st.st_mode)) {
+               if (st.st_size >= (1U << 31)) {
+                       fprintf(stderr, "%s: input too large\n", 
+                                       curp->file);
+                       with_error = 1;
+                       return(0);
+               }
+               *with_mmap = 1;
+               fb->sz = (size_t)st.st_size;
+               fb->buf = mmap(NULL, fb->sz, PROT_READ, 
+                               MAP_FILE, curp->fd, 0);
+               if (fb->buf != MAP_FAILED)
+                       return(1);

        }
 
        /*
        }
 
        /*

-        * Fill buf with file blocksize and parse newlines into ln.
+        * If this isn't a regular file (like, say, stdin), then we must
+        * go the old way and just read things in bit by bit.

         */
 
         */
 

-       for (lnn = 1, pos = 0; ; ) {
-               if (-1 == (ssz = read(fd, blk->buf, sz))) {
-                       warn("%s", f);
-                       return(0);
-               } else if (0 == ssz) 
+       *with_mmap = 0;
+       off = 0;
+       fb->sz = 0;
+       fb->buf = NULL;
+       for (;;) {
+               if (off == fb->sz) {
+                       if (fb->sz == (1U << 31)) {
+                               fprintf(stderr, "%s: input too large\n", 
+                                               curp->file);
+                               break;
+                       }
+                       if (! resize_buf(fb, 65536))
+                               break;
+               }
+               ssz = read(curp->fd, fb->buf + (int)off, fb->sz - off);
+               if (ssz == 0) {
+                       fb->sz = off;
+                       return(1);
+               }
+               if (ssz == -1) {
+                       perror(curp->file);

                        break;
                        break;

+               }
+               off += (size_t)ssz;
+       }

 
 

-               for (i = 0; i < (int)ssz; i++) {
-                       if (pos >= (int)ln->sz) {
-                               ln->sz += 256; /* Step-size. */
-                               ln->buf = realloc(ln->buf, ln->sz);
-                               if (NULL == ln->buf)
-                                       err(1, "realloc");
-                       }
+       free(fb->buf);
+       fb->buf = NULL;
+       with_error = 1;
+       return(0);
+}

 
 

-                       if ('\n' != blk->buf[i]) {
-                               ln->buf[pos++] = blk->buf[i];
-                               continue;
-                       }

 
 

-                       /* Check for CPP-escaped newline.  */
+static void
+fdesc(struct curparse *curp)
+{
+       struct buf       ln, blk;
+       int              i, pos, lnn, lnn_start, with_mmap, of;
+       enum rofferr     re;
+       struct man      *man;
+       struct mdoc     *mdoc;
+       struct roff     *roff;

 
 

-                       if (pos > 0 && '\\' == ln->buf[pos - 1]) {
-                               for (j = pos - 1; j >= 0; j--)
-                                       if ('\\' != ln->buf[j])
-                                               break;
+       man = NULL;
+       mdoc = NULL;
+       roff = NULL;
+       memset(&ln, 0, sizeof(struct buf));

 
 

-                               if ( ! ((pos - j) % 2)) {
-                                       pos--;
-                                       lnn++;
-                                       continue;
+       /*
+        * Two buffers: ln and buf.  buf is the input file and may be
+        * memory mapped.  ln is a line buffer and grows on-demand.
+        */
+
+       if ( ! read_whole_file(curp, &blk, &with_mmap))
+               return;
+
+       if (NULL == curp->roff) 
+               curp->roff = roff_init(curp);
+       if (NULL == (roff = curp->roff))
+               goto bailout;
+
+       for (i = 0, lnn = 1; i < (int)blk.sz;) {
+               pos = 0;
+               lnn_start = lnn;
+               while (i < (int)blk.sz) {
+                       if ('\n' == blk.buf[i]) {
+                               ++i;
+                               ++lnn;
+                               break;
+                       }
+                       /* Trailing backslash is like a plain character. */
+                       if ('\\' != blk.buf[i] || i + 1 == (int)blk.sz) {
+                               if (pos >= (int)ln.sz)
+                                       if (! resize_buf(&ln, 256))
+                                               goto bailout;
+                               ln.buf[pos++] = blk.buf[i++];
+                               continue;
+                       }
+                       /* Found an escape and at least one other character. */
+                       if ('\n' == blk.buf[i + 1]) {
+                               /* Escaped newlines are skipped over */
+                               i += 2;
+                               ++lnn;
+                               continue;
+                       }
+                       if ('"' == 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;

                        }
                        }

+                       /* Some other escape sequence, copy and continue. */
+                       if (pos + 1 >= (int)ln.sz)
+                               if (! resize_buf(&ln, 256))
+                                       goto bailout;

 
 

-                       ln->buf[pos] = 0;
-                       if (mdoc && ! mdoc_parseln(mdoc, lnn, ln->buf))
-                               return(0);
-                       if (man && ! man_parseln(man, lnn, ln->buf))
-                               return(0);
-                       lnn++;
-                       pos = 0;
+                       ln.buf[pos++] = blk.buf[i++];
+                       ln.buf[pos++] = blk.buf[i++];

                }
                }

+
+               if (pos >= (int)ln.sz)
+                       if (! resize_buf(&ln, 256))
+                               goto bailout;
+               ln.buf[pos] = '\0';
+
+               /*
+                * A significant amount of complexity is contained by
+                * the roff preprocessor.  It's line-oriented but can be
+                * expressed on one line, so we need at times to
+                * readjust our starting point and re-run it.  The roff
+                * preprocessor can also readjust the buffers with new
+                * data, so we pass them in wholesale.
+                */
+
+               of = 0;
+               do {
+                       re = roff_parseln(roff, lnn_start, 
+                                       &ln.buf, &ln.sz, of, &of);
+               } while (ROFF_RERUN == re);
+
+               if (ROFF_IGN == re)
+                       continue;
+               else if (ROFF_ERR == re)
+                       goto bailout;
+
+               /*
+                * If input parsers have not been allocated, do so now.
+                * We keep these instanced betwen parsers, but set them
+                * locally per parse routine since we can use different
+                * parsers with each one.
+                */
+
+               if ( ! (man || mdoc))
+                       if ( ! pset(ln.buf + of, pos - of, curp, &man, &mdoc))
+                               goto bailout;
+
+               /* Lastly, push down into the parsers themselves. */
+
+               if (man && ! man_parseln(man, lnn_start, ln.buf, of))
+                       goto bailout;
+               if (mdoc && ! mdoc_parseln(mdoc, lnn_start, ln.buf, of))
+                       goto bailout;
+       }
+
+       /* NOTE a parser may not have been assigned, yet. */
+
+       if ( ! (man || mdoc)) {
+               fprintf(stderr, "%s: Not a manual\n", curp->file);
+               goto bailout;

        }
 
        }
 

+       /* Clean up the parse routine ASTs. */
+
+       if (mdoc && ! mdoc_endparse(mdoc))
+               goto bailout;
+       if (man && ! man_endparse(man))
+               goto bailout;
+       if (roff && ! roff_endparse(roff))
+               goto bailout;
+
+       /* If unset, allocate output dev now (if applicable). */
+
+       if ( ! (curp->outman && curp->outmdoc)) {
+               switch (curp->outtype) {
+               case (OUTT_XHTML):
+                       curp->outdata = xhtml_alloc(curp->outopts);
+                       curp->outman = html_man;
+                       curp->outmdoc = html_mdoc;
+                       curp->outfree = html_free;
+                       break;
+               case (OUTT_HTML):
+                       curp->outdata = html_alloc(curp->outopts);
+                       curp->outman = html_man;
+                       curp->outmdoc = html_mdoc;
+                       curp->outfree = html_free;
+                       break;
+               case (OUTT_TREE):
+                       curp->outman = tree_man;
+                       curp->outmdoc = tree_mdoc;
+                       break;
+               case (OUTT_LINT):
+                       break;
+               default:
+                       curp->outdata = ascii_alloc(80);
+                       curp->outman = terminal_man;
+                       curp->outmdoc = terminal_mdoc;
+                       curp->outfree = terminal_free;
+                       break;
+               }
+       }
+
+       /* Execute the out device, if it exists. */
+
+       if (man && curp->outman)
+               (*curp->outman)(curp->outdata, man);
+       if (mdoc && curp->outmdoc)
+               (*curp->outmdoc)(curp->outdata, mdoc);
+
+ cleanup:

        if (mdoc)
        if (mdoc)

-              return(mdoc_endparse(mdoc));
+               mdoc_reset(mdoc);
+       if (man)
+               man_reset(man);
+       if (roff)
+               roff_reset(roff);
+       if (ln.buf)
+               free(ln.buf);
+       if (with_mmap)
+               munmap(blk.buf, blk.sz);
+       else
+               free(blk.buf);
+
+       return;

 
 

-       return(man_endparse(man));
+ bailout:
+       with_error = 1;
+       goto cleanup;
+}
+
+
+static int
+pset(const char *buf, int pos, struct curparse *curp,
+               struct man **man, struct mdoc **mdoc)
+{
+       int              i;
+
+       /*
+        * 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.
+        */
+
+       if ('.' == buf[0] || '\'' == buf[0]) {
+               for (i = 1; buf[i]; i++)
+                       if (' ' != buf[i] && '\t' != buf[i])
+                               break;
+               if (0 == buf[i])
+                       return(1);
+       }
+
+       switch (curp->inttype) {
+       case (INTT_MDOC):
+               if (NULL == curp->mdoc) 
+                       curp->mdoc = mdoc_init(curp);
+               if (NULL == (*mdoc = curp->mdoc))
+                       return(0);
+               return(1);
+       case (INTT_MAN):
+               if (NULL == curp->man) 
+                       curp->man = man_init(curp);
+               if (NULL == (*man = curp->man))
+                       return(0);
+               return(1);
+       default:
+               break;
+       }
+
+       if (pos >= 3 && 0 == memcmp(buf, ".Dd", 3))  {
+               if (NULL == curp->mdoc) 
+                       curp->mdoc = mdoc_init(curp);
+               if (NULL == (*mdoc = curp->mdoc))
+                       return(0);
+               return(1);
+       } 
+
+       if (NULL == curp->man) 
+               curp->man = man_init(curp);
+       if (NULL == (*man = curp->man))
+               return(0);
+       return(1);

 }
 
 
 }
 
 


@@ -390,12 +641,14 @@ static int
 moptions(enum intt *tflags, char *arg)
 {
 
 moptions(enum intt *tflags, char *arg)
 {
 

-       if (0 == strcmp(arg, "mdoc"))
+       if (0 == strcmp(arg, "doc"))

                *tflags = INTT_MDOC;
                *tflags = INTT_MDOC;

-       else if (0 == strcmp(arg, "man"))
+       else if (0 == strcmp(arg, "andoc"))
+               *tflags = INTT_AUTO;
+       else if (0 == strcmp(arg, "an"))

                *tflags = INTT_MAN;
        else {
                *tflags = INTT_MAN;
        else {

-               warnx("bad argument: -m%s", arg);
+               fprintf(stderr, "%s: Bad argument\n", arg);

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


@@ -404,21 +657,24 @@ moptions(enum intt *tflags, char *arg)
 
 
 static int
 
 
 static int

-toptions(enum outt *tflags, char *arg)
+toptions(struct curparse *curp, char *arg)

 {
 
        if (0 == strcmp(arg, "ascii"))
 {
 
        if (0 == strcmp(arg, "ascii"))

-               *tflags = OUTT_ASCII;
-       else if (0 == strcmp(arg, "latin1"))
-               *tflags = OUTT_LATIN1;
-       else if (0 == strcmp(arg, "utf8"))
-               *tflags = OUTT_UTF8;
-       else if (0 == strcmp(arg, "lint"))
-               *tflags = OUTT_LINT;
+               curp->outtype = OUTT_ASCII;
+       else if (0 == strcmp(arg, "lint")) {
+               curp->outtype = OUTT_LINT;
+               curp->wflags |= WARN_WALL;
+               curp->fflags |= FL_STRICT;
+       }

        else if (0 == strcmp(arg, "tree"))
        else if (0 == strcmp(arg, "tree"))

-               *tflags = OUTT_TREE;
+               curp->outtype = OUTT_TREE;
+       else if (0 == strcmp(arg, "html"))
+               curp->outtype = OUTT_HTML;
+       else if (0 == strcmp(arg, "xhtml"))
+               curp->outtype = OUTT_XHTML;

        else {
        else {

-               warnx("bad argument: -T%s", arg);
+               fprintf(stderr, "%s: Bad argument\n", arg);

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


@@ -426,75 +682,75 @@ toptions(enum outt *tflags, char *arg)
 }
 
 
 }
 
 

-/*
- * Parse out the options for [-fopt...] setting compiler options.  These
- * can be comma-delimited or called again.
- */

 static int
 foptions(int *fflags, char *arg)
 {
 static int
 foptions(int *fflags, char *arg)
 {

-       char            *v;
-       char            *toks[4];
+       char            *v, *o;
+       const char      *toks[8];

 
        toks[0] = "ign-scope";
 
        toks[0] = "ign-scope";

-       toks[1] = "ign-escape";
-       toks[2] = "ign-macro";
-       toks[3] = NULL;
-
-       while (*arg) 
-               switch (getsubopt(&arg, toks, &v)) {
+       toks[1] = "no-ign-escape";
+       toks[2] = "no-ign-macro";
+       toks[3] = "ign-errors";
+       toks[4] = "strict";
+       toks[5] = "ign-escape";
+       toks[6] = NULL;
+
+       while (*arg) {
+               o = arg;
+               switch (getsubopt(&arg, UNCONST(toks), &v)) {

                case (0):
                case (0):

-                       *fflags |= MDOC_IGN_SCOPE;
+                       *fflags |= FL_IGN_SCOPE;

                        break;
                case (1):
                        break;
                case (1):

-                       *fflags |= MDOC_IGN_ESCAPE;
+                       *fflags |= FL_NIGN_ESCAPE;

                        break;
                case (2):
                        break;
                case (2):

-                       *fflags |= MDOC_IGN_MACRO;
+                       *fflags |= FL_NIGN_MACRO;
+                       break;
+               case (3):
+                       *fflags |= FL_IGN_ERRORS;
+                       break;
+               case (4):
+                       *fflags |= FL_STRICT;
+                       break;
+               case (5):
+                       *fflags &= ~FL_NIGN_ESCAPE;

                        break;
                default:
                        break;
                default:

-                       warnx("bad argument: -f%s", arg);
+                       fprintf(stderr, "%s: Bad argument\n", o);

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

+       }

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

-/* 
- * Parse out the options for [-Werr...], which sets warning modes.
- * These can be comma-delimited or called again.  
- */

 static int
 woptions(int *wflags, char *arg)
 {
 static int
 woptions(int *wflags, char *arg)
 {

-       char            *v;
-       char            *toks[5]; 
+       char            *v, *o;
+       const char      *toks[3]; 

 
        toks[0] = "all";
 
        toks[0] = "all";

-       toks[1] = "compat";
-       toks[2] = "syntax";
-       toks[3] = "error";
-       toks[4] = NULL;
+       toks[1] = "error";
+       toks[2] = NULL;

 
 

-       while (*arg) 
-               switch (getsubopt(&arg, toks, &v)) {
+       while (*arg) {
+               o = arg;
+               switch (getsubopt(&arg, UNCONST(toks), &v)) {

                case (0):
                        *wflags |= WARN_WALL;
                        break;
                case (1):
                case (0):
                        *wflags |= WARN_WALL;
                        break;
                case (1):

-                       *wflags |= WARN_WCOMPAT;
-                       break;
-               case (2):
-                       *wflags |= WARN_WSYNTAX;
-                       break;
-               case (3):

                        *wflags |= WARN_WERR;
                        break;
                default:
                        *wflags |= WARN_WERR;
                        break;
                default:

-                       warnx("bad argument: -W%s", arg);
+                       fprintf(stderr, "%s: Bad argument\n", o);

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

+       }

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


@@ -508,45 +764,65 @@ merr(void *arg, int line, int col, const char *msg)
 
        curp = (struct curparse *)arg;
 
 
        curp = (struct curparse *)arg;
 

-       warnx("%s:%d: error: %s (column %d)", 
-                       curp->file, line, msg, col);
+       (void)fprintf(stderr, "%s:%d:%d: error: %s\n", 
+                       curp->file, line, col + 1, msg);
+
+       with_error = 1;
+

        return(0);
 }
 
 
 static int
        return(0);
 }
 
 
 static int

-mwarn(void *arg, int line, int col, 
-               enum mdoc_warn type, const char *msg)
+mwarn(void *arg, int line, int col, const char *msg)

 {
        struct curparse *curp;
 {
        struct curparse *curp;

-       char            *wtype;

 
        curp = (struct curparse *)arg;
 
        curp = (struct curparse *)arg;

-       wtype = NULL;

 
 

-       switch (type) {
-       case (WARN_COMPAT):
-               wtype = "compat";
-               if (curp->wflags & WARN_WCOMPAT)
-                       break;
-               return(1);
-       case (WARN_SYNTAX):
-               wtype = "syntax";
-               if (curp->wflags & WARN_WSYNTAX)
-                       break;
+       if ( ! (curp->wflags & WARN_WALL))

                return(1);
                return(1);

-       }

 
 

-       assert(wtype);
-       warnx("%s:%d: %s warning: %s (column %d)", 
-                       curp->file, line, wtype, msg, col);
+       (void)fprintf(stderr, "%s:%d:%d: warning: %s\n", 
+                       curp->file, line, col + 1, msg);

 
 

-       if ( ! (curp->wflags & WARN_WERR))
-               return(1);
+       with_warning = 1;
+       if (curp->wflags & WARN_WERR) {
+               with_error = 1;
+               return(0);
+       }

 
 

-       warnx("%s: considering warnings as errors", 
-                       __progname);
-       return(0);
+       return(1);

 }
 
 }
 

+static const char * const      mandocerrs[MANDOCERR_MAX] = {
+       "ok",
+       "multi-line scope open on exit",
+       "request for scope closure when no matching scope is open",
+       "line arguments will be lost",
+       "memory exhausted"
+};
+
+/*
+ * XXX: this is experimental code that will eventually become the
+ * generic means of covering all warnings and errors!
+ */
+/* ARGSUSED */
+static int
+mmsg(enum mandocerr t, void *arg, int ln, int col, const char *msg)
+{
+#if 0
+       struct curparse *cp;

 
 

+       cp = (struct curparse *)arg;
+
+       fprintf(stderr, "%s:%d:%d: %s", cp->file, 
+                       ln, col + 1, mandocerrs[t]);
+
+       if (msg)
+               fprintf(stderr, ": %s", msg);
+
+       fputc('\n', stderr);
+#endif
+       return(1);
+}