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Turn on -Tutf8 in the frontend. Here we go!
[mandoc.git] / main.c
diff --git a/main.c b/main.c
index 396c6daf975de25a47eae2381e23c55d219cc3b4..4c2e7e790ca8e22ce21a69daf65288c3c9907521 100644 (file)
--- a/main.c
+++ b/main.c
@@ -1,102 +1,120 @@
-/* $Id: main.c,v 1.1 2009/03/19 16:17:27 kristaps Exp $ */
+/*     $Id: main.c,v 1.163 2011/05/20 15:51:18 kristaps Exp $ */
 /*
 /*
- * Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@openbsd.org>
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2010, 2011 Ingo Schwarze <schwarze@openbsd.org>
  *
  * 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.
  */
  */
-#include <sys/stat.h>
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
 #include <assert.h>
 
 #include <assert.h>
-#include <err.h>
-#include <fcntl.h>
 #include <stdio.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 "main.h"
 #include "mdoc.h"
 #include "mdoc.h"
+#include "man.h"
 
 
-#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 outt {
-       OUTT_ASCII,
-       OUTT_LATIN1,
-       OUTT_UTF8,
-       OUTT_TREE,
-       OUTT_LINT
-};
+#if !defined(__GNUC__) || (__GNUC__ < 2)
+# if !defined(lint)
+#  define __attribute__(x)
+# endif
+#endif /* !defined(__GNUC__) || (__GNUC__ < 2) */
 
 
-typedef        int             (*out_run)(void *, const struct mdoc *);
+typedef        void            (*out_mdoc)(void *, const struct mdoc *);
+typedef        void            (*out_man)(void *, const struct man *);
 typedef        void            (*out_free)(void *);
 
 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 mdoc *);
-extern int               tree_run(void *, const struct mdoc *);
-extern void              terminal_free(void *);
-
-__dead static void       version(void);
-__dead static void       usage(void);
-static int               foptions(int *, char *);
-static int               toptions(enum outt *, 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(char **, size_t *, char **, size_t *, 
-                               const char *, struct mdoc *);
-static int               fdesc(char **, size_t *, char **, size_t *, 
-                               const char *, int, struct mdoc *);
+enum   outt {
+       OUTT_ASCII = 0, /* -Tascii */
+       OUTT_LOCALE,    /* -Tlocale */
+       OUTT_UTF8,      /* -Tutf8 */
+       OUTT_TREE,      /* -Ttree */
+       OUTT_HTML,      /* -Thtml */
+       OUTT_XHTML,     /* -Txhtml */
+       OUTT_LINT,      /* -Tlint */
+       OUTT_PS,        /* -Tps */
+       OUTT_PDF        /* -Tpdf */
+};
+
+struct curparse {
+       struct mparse    *mp;
+       enum mandoclevel  wlevel;       /* ignore messages below this */
+       int               wstop;        /* stop after a file with a warning */
+       enum outt         outtype;      /* which output to use */
+       out_mdoc          outmdoc;      /* mdoc output ptr */
+       out_man           outman;       /* man output ptr */
+       out_free          outfree;      /* free output ptr */
+       void             *outdata;      /* data for output */
+       char              outopts[BUFSIZ]; /* buf of output opts */
+};
 
 
+static int               moptions(enum mparset *, char *);
+static void              mmsg(enum mandocerr, enum mandoclevel,
+                               const char *, int, int, const char *);
+static void              parse(struct curparse *, int, 
+                               const char *, enum mandoclevel *);
+static int               toptions(struct curparse *, char *);
+static void              usage(void) __attribute__((noreturn));
+static void              version(void) __attribute__((noreturn));
+static int               woptions(struct curparse *, char *);
+
+static const char       *progname;
 
 int
 main(int argc, char *argv[])
 {
 
 int
 main(int argc, char *argv[])
 {
-       int              c, rc, fflags, wflags;
-       struct mdoc_cb   cb;
-       struct mdoc     *mdoc;
-       char            *buf, *line;
-       size_t           bufsz, linesz;
-       void            *outdata;
-       enum outt        outtype;
-       out_run          outrun;
-       out_free         outfree;
-
-       fflags = wflags = 0;
-       outtype = OUTT_ASCII;
+       int              c;
+       struct curparse  curp;
+       enum mparset     type;
+       enum mandoclevel rc;
+
+       progname = strrchr(argv[0], '/');
+       if (progname == NULL)
+               progname = argv[0];
+       else
+               ++progname;
+
+       memset(&curp, 0, sizeof(struct curparse));
+
+       type = MPARSE_AUTO;
+       curp.outtype = OUTT_ASCII;
+       curp.wlevel  = MANDOCLEVEL_FATAL;
 
        /* LINTED */
 
        /* LINTED */
-       while (-1 != (c = getopt(argc, argv, "f:VW:T:")))
+       while (-1 != (c = getopt(argc, argv, "m:O:T:VW:")))
                switch (c) {
                switch (c) {
-               case ('f'):
-                       if ( ! foptions(&fflags, optarg))
-                               return(0);
+               case ('m'):
+                       if ( ! moptions(&type, optarg))
+                               return((int)MANDOCLEVEL_BADARG);
+                       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((int)MANDOCLEVEL_BADARG);
                        break;
                case ('W'):
                        break;
                case ('W'):
-                       if ( ! woptions(&wflags, optarg))
-                               return(0);
+                       if ( ! woptions(&curp, optarg))
+                               return((int)MANDOCLEVEL_BADARG);
                        break;
                case ('V'):
                        version();
                        break;
                case ('V'):
                        version();
@@ -106,347 +124,265 @@ main(int argc, char *argv[])
                        /* NOTREACHED */
                }
 
                        /* NOTREACHED */
                }
 
+       curp.mp = mparse_alloc(type, curp.wlevel, mmsg, &curp);
+
        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.
-        */
+       rc = MANDOCLEVEL_OK;
 
 
-       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;
-       }
-
-       /*
-        * All callbacks route into here, where we print them onto the
-        * screen.  XXX - for now, no path for debugging messages.
-        */
-
-       cb.mdoc_msg = NULL;
-       cb.mdoc_err = merr;
-       cb.mdoc_warn = mwarn;
-
-       buf = line = NULL;
-       bufsz = linesz = 0;
-
-       mdoc = mdoc_alloc(&wflags, fflags, &cb);
+       if (NULL == *argv)
+               parse(&curp, STDIN_FILENO, "<stdin>", &rc);
 
        while (*argv) {
 
        while (*argv) {
-               if ( ! file(&line, &linesz, &buf, &bufsz, *argv, mdoc))
+               parse(&curp, -1, *argv, &rc);
+               if (MANDOCLEVEL_OK != rc && curp.wstop)
                        break;
                        break;
-               if (outrun && ! (*outrun)(outdata, mdoc))
-                       break;
-
-               /* Reset the parser for another file. */
-               mdoc_reset(mdoc);
-               argv++;
+               ++argv;
        }
 
        }
 
-       rc = NULL == *argv;
-
-       if (buf)
-               free(buf);
-       if (line)
-               free(line);
-       if (outfree)
-               (*outfree)(outdata);
+       if (curp.outfree)
+               (*curp.outfree)(curp.outdata);
+       if (curp.mp)
+               mparse_free(curp.mp);
 
 
-       mdoc_free(mdoc);
-
-       return(rc ? EXIT_SUCCESS : EXIT_FAILURE);
+       return((int)rc);
 }
 
 }
 
-
-__dead static void
+static void
 version(void)
 {
 
 version(void)
 {
 
-       (void)printf("%s %s\n", __progname, VERSION);
-       exit(0);
-       /* NOTREACHED */
+       printf("%s %s\n", progname, VERSION);
+       exit((int)MANDOCLEVEL_OK);
 }
 
 }
 
-
-__dead static void
+static void
 usage(void)
 {
 
 usage(void)
 {
 
-       (void)fprintf(stderr, "usage: %s\n", __progname);
-       exit(1);
-       /* NOTREACHED */
+       fprintf(stderr, "usage: %s "
+                       "[-V] "
+                       "[-foption] "
+                       "[-mformat] "
+                       "[-Ooption] "
+                       "[-Toutput] "
+                       "[-Wlevel] "
+                       "[file...]\n", 
+                       progname);
+
+       exit((int)MANDOCLEVEL_BADARG);
 }
 
 }
 
-
-static int
-file(char **ln, size_t *lnsz, char **buf, size_t *bufsz, 
-               const char *file, struct mdoc *mdoc)
+static void
+parse(struct curparse *curp, int fd, 
+               const char *file, enum mandoclevel *level)
 {
 {
-       int              fd, c;
-
-       if (-1 == (fd = open(file, O_RDONLY, 0))) {
-               warn("%s", file);
-               return(0);
-       }
-
-       c = fdesc(ln, lnsz, buf, bufsz, file, fd, mdoc);
+       enum mandoclevel  rc;
+       struct mdoc      *mdoc;
+       struct man       *man;
 
 
-       if (-1 == close(fd))
-               warn("%s", file);
+       /* Begin by parsing the file itself. */
 
 
-       return(c);
-}
+       assert(file);
+       assert(fd >= -1);
 
 
+       rc = mparse_readfd(curp->mp, fd, file);
 
 
-static int
-fdesc(char **lnp, size_t *lnsz, char **bufp, size_t *bufsz, 
-               const char *f, int fd, struct mdoc *mdoc)
-{
-       size_t           sz;
-       ssize_t          ssz;
-       struct stat      st;
-       int              j, i, pos, lnn;
-       char            *ln, *buf;
+       /* Stop immediately if the parse has failed. */
 
 
-       buf = *bufp;
-       ln = *lnp;
+       if (MANDOCLEVEL_FATAL <= rc)
+               goto cleanup;
 
        /*
 
        /*
-        * 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.
+        * With -Wstop and warnings or errors of at least the requested
+        * level, do not produce output.
         */
 
         */
 
-       if (-1 == fstat(fd, &st)) {
-               warnx("%s", f);
-               sz = BUFSIZ;
-       } else 
-               sz = (unsigned)BUFSIZ > st.st_blksize ?
-                       (size_t)BUFSIZ : st.st_blksize;
-
-       if (sz > *bufsz) {
-               if (NULL == (buf = realloc(buf, sz)))
-                       err(1, "realloc");
-               *bufp = buf;
-               *bufsz = sz;
-       }
+       if (MANDOCLEVEL_OK != rc && curp->wstop)
+               goto cleanup;
 
 
-       /*
-        * Fill buf with file blocksize and parse newlines into ln.
-        */
+       /* If unset, allocate output dev now (if applicable). */
 
 
-       for (lnn = 1, pos = 0; ; ) {
-               if (-1 == (ssz = read(fd, buf, sz))) {
-                       warn("%s", f);
-                       return(0);
-               } else if (0 == ssz) 
+       if ( ! (curp->outman && curp->outmdoc)) {
+               switch (curp->outtype) {
+               case (OUTT_XHTML):
+                       curp->outdata = xhtml_alloc(curp->outopts);
+                       curp->outfree = html_free;
+                       break;
+               case (OUTT_HTML):
+                       curp->outdata = html_alloc(curp->outopts);
+                       curp->outfree = html_free;
+                       break;
+               case (OUTT_UTF8):
+                       curp->outdata = utf8_alloc(curp->outopts);
+                       curp->outfree = ascii_free;
+                       break;
+               case (OUTT_LOCALE):
+                       curp->outdata = locale_alloc(curp->outopts);
+                       curp->outfree = ascii_free;
+                       break;
+               case (OUTT_ASCII):
+                       curp->outdata = ascii_alloc(curp->outopts);
+                       curp->outfree = ascii_free;
+                       break;
+               case (OUTT_PDF):
+                       curp->outdata = pdf_alloc(curp->outopts);
+                       curp->outfree = pspdf_free;
                        break;
                        break;
+               case (OUTT_PS):
+                       curp->outdata = ps_alloc(curp->outopts);
+                       curp->outfree = pspdf_free;
+                       break;
+               default:
+                       break;
+               }
 
 
-               for (i = 0; i < (int)ssz; i++) {
-                       if (pos >= (int)*lnsz) {
-                               *lnsz += 256; /* Step-size. */
-                               ln = realloc(ln, *lnsz);
-                               if (NULL == ln)
-                                       err(1, "realloc");
-                               *lnp = ln;
-                       }
-
-                       if ('\n' != buf[i]) {
-                               ln[pos++] = buf[i];
-                               continue;
-                       }
-
-                       /* Check for CPP-escaped newline.  */
-
-                       if (pos > 0 && '\\' == ln[pos - 1]) {
-                               for (j = pos - 1; j >= 0; j--)
-                                       if ('\\' != ln[j])
-                                               break;
-
-                               if ( ! ((pos - j) % 2)) {
-                                       pos--;
-                                       lnn++;
-                                       continue;
-                               }
-                       }
-
-                       ln[pos] = 0;
-                       if ( ! mdoc_parseln(mdoc, lnn, ln))
-                               return(0);
-                       lnn++;
-                       pos = 0;
+               switch (curp->outtype) {
+               case (OUTT_HTML):
+                       /* FALLTHROUGH */
+               case (OUTT_XHTML):
+                       curp->outman = html_man;
+                       curp->outmdoc = html_mdoc;
+                       break;
+               case (OUTT_TREE):
+                       curp->outman = tree_man;
+                       curp->outmdoc = tree_mdoc;
+                       break;
+               case (OUTT_PDF):
+                       /* FALLTHROUGH */
+               case (OUTT_ASCII):
+                       /* FALLTHROUGH */
+               case (OUTT_UTF8):
+                       /* FALLTHROUGH */
+               case (OUTT_LOCALE):
+                       /* FALLTHROUGH */
+               case (OUTT_PS):
+                       curp->outman = terminal_man;
+                       curp->outmdoc = terminal_mdoc;
+                       break;
+               default:
+                       break;
                }
        }
 
                }
        }
 
-       return(mdoc_endparse(mdoc));
-}
+       mparse_result(curp->mp, &mdoc, &man);
+
+       /* 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:
 
 
+       mparse_reset(curp->mp);
+
+       if (*level < rc)
+               *level = rc;
+}
 
 static int
 
 static int
-toptions(enum outt *tflags, char *arg)
+moptions(enum mparset *tflags, char *arg)
 {
 
 {
 
-       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;
-       else if (0 == strcmp(arg, "tree"))
-               *tflags = OUTT_TREE;
+       if (0 == strcmp(arg, "doc"))
+               *tflags = MPARSE_MDOC;
+       else if (0 == strcmp(arg, "andoc"))
+               *tflags = MPARSE_AUTO;
+       else if (0 == strcmp(arg, "an"))
+               *tflags = MPARSE_MAN;
        else {
        else {
-               warnx("bad argument: -T%s", arg);
+               fprintf(stderr, "%s: Bad argument\n", arg);
                return(0);
        }
 
        return(1);
 }
 
                return(0);
        }
 
        return(1);
 }
 
-
-/*
- * Parse out the options for [-fopt...] setting compiler options.  These
- * can be comma-delimited or called again.
- */
 static int
 static int
-foptions(int *fflags, char *arg)
+toptions(struct curparse *curp, char *arg)
 {
 {
-       char            *v;
-       char            *toks[4];
-
-       toks[0] = "ign-scope";
-       toks[1] = "ign-escape";
-       toks[2] = "ign-macro";
-       toks[3] = NULL;
 
 
-       while (*arg) 
-               switch (getsubopt(&arg, toks, &v)) {
-               case (0):
-                       *fflags |= MDOC_IGN_SCOPE;
-                       break;
-               case (1):
-                       *fflags |= MDOC_IGN_ESCAPE;
-                       break;
-               case (2):
-                       *fflags |= MDOC_IGN_MACRO;
-                       break;
-               default:
-                       warnx("bad argument: -f%s", arg);
-                       return(0);
-               }
+       if (0 == strcmp(arg, "ascii"))
+               curp->outtype = OUTT_ASCII;
+       else if (0 == strcmp(arg, "lint")) {
+               curp->outtype = OUTT_LINT;
+               curp->wlevel  = MANDOCLEVEL_WARNING;
+       } else if (0 == strcmp(arg, "tree"))
+               curp->outtype = OUTT_TREE;
+       else if (0 == strcmp(arg, "html"))
+               curp->outtype = OUTT_HTML;
+       else if (0 == strcmp(arg, "utf8"))
+               curp->outtype = OUTT_UTF8;
+       else if (0 == strcmp(arg, "locale"))
+               curp->outtype = OUTT_LOCALE;
+       else if (0 == strcmp(arg, "xhtml"))
+               curp->outtype = OUTT_XHTML;
+       else if (0 == strcmp(arg, "ps"))
+               curp->outtype = OUTT_PS;
+       else if (0 == strcmp(arg, "pdf"))
+               curp->outtype = OUTT_PDF;
+       else {
+               fprintf(stderr, "%s: Bad argument\n", arg);
+               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
 static int
-woptions(int *wflags, char *arg)
+woptions(struct curparse *curp, char *arg)
 {
 {
-       char            *v;
-       char            *toks[5]; 
+       char            *v, *o;
+       const char      *toks[6]; 
 
 
-       toks[0] = "all";
-       toks[1] = "compat";
-       toks[2] = "syntax";
+       toks[0] = "stop";
+       toks[1] = "all";
+       toks[2] = "warning";
        toks[3] = "error";
        toks[3] = "error";
-       toks[4] = NULL;
+       toks[4] = "fatal";
+       toks[5] = NULL;
 
 
-       while (*arg) 
-               switch (getsubopt(&arg, toks, &v)) {
+       while (*arg) {
+               o = arg;
+               switch (getsubopt(&arg, UNCONST(toks), &v)) {
                case (0):
                case (0):
-                       *wflags |= WARN_WALL;
+                       curp->wstop = 1;
                        break;
                case (1):
                        break;
                case (1):
-                       *wflags |= WARN_WCOMPAT;
-                       break;
+                       /* FALLTHROUGH */
                case (2):
                case (2):
-                       *wflags |= WARN_WSYNTAX;
+                       curp->wlevel = MANDOCLEVEL_WARNING;
                        break;
                case (3):
                        break;
                case (3):
-                       *wflags |= WARN_WERR;
+                       curp->wlevel = MANDOCLEVEL_ERROR;
+                       break;
+               case (4):
+                       curp->wlevel = MANDOCLEVEL_FATAL;
                        break;
                default:
                        break;
                default:
-                       warnx("bad argument: -W%s", arg);
+                       fprintf(stderr, "-W%s: Bad argument\n", o);
                        return(0);
                }
                        return(0);
                }
+       }
 
        return(1);
 }
 
 
        return(1);
 }
 
-
-static int
-merr(void *arg, int line, int col, const char *msg)
-{
-
-       warnx("error: %s (line %d, column %d)", msg, line, col);
-       return(0);
-}
-
-
-static int
-mwarn(void *arg, int line, int col, 
-               enum mdoc_warn type, const char *msg)
+static void
+mmsg(enum mandocerr t, enum mandoclevel lvl, 
+               const char *file, int line, int col, const char *msg)
 {
 {
-       int              flags;
-       char            *wtype;
-
-       flags = *(int *)arg;
-       wtype = NULL;
 
 
-       switch (type) {
-       case (WARN_COMPAT):
-               wtype = "compat";
-               if (flags & WARN_WCOMPAT)
-                       break;
-               return(1);
-       case (WARN_SYNTAX):
-               wtype = "syntax";
-               if (flags & WARN_WSYNTAX)
-                       break;
-               return(1);
-       }
+       fprintf(stderr, "%s:%d:%d: %s: %s", 
+                       file, line, col + 1, 
+                       mparse_strlevel(lvl),
+                       mparse_strerror(t));
 
 
-       assert(wtype);
-       warnx("%s warning: %s (line %d, column %d)", 
-                       wtype, msg, line, col);
+       if (msg)
+               fprintf(stderr, ": %s", msg);
 
 
-       if ( ! (flags & WARN_WERR))
-               return(1);
-
-       warnx("%s: considering warnings as errors", 
-                       __progname);
-       return(0);
+       fputc('\n', stderr);
 }
 }
-
-
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