Move lexgrog-related bits out of manconfig.h

It's generally cleaner for things like this to be in a dedicated header
file.

* include/manconfig.h.in (struct lexgrog, find_name,
find_name_decompressed): Move to ...
* src/lexgrog.h: ... here (new file).  Simplify declarations slightly.
* include/manconfig.h.in (lexgrog filter enum): Move to ...
* src/lexgrog.l: ... here.
* src/Makefile.am (lexgrog_SOURCES, mandb_SOURCES): Add lexgrog.h.
* src/check_mandirs.c, src/lexgrog.l, src/lexgrog_test.c,
src/straycats.c: Include lexgrog.h.

1 files changed, 33 insertions, 0 deletions

diff --git a/src/lexgrog.h b/src/lexgrog.h
new file mode 100644
index 00000000..8ad44ddd
--- /dev/null
+++ b/src/lexgrog.h
@@ -0,0 +1,33 @@
+/*
+ * lexgrog.h: interface to extracting whatis info
+ *
+ * Copyright (C) 1994, 1995 Graeme W. Wilford. (Wilf.)
+ * Copyright (C) 2001-2022 Colin Watson.
+ *
+ * This file is part of man-db.
+ *
+ * man-db is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * man-db is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with man-db; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+typedef struct lexgrog {
+	int type;
+	char *whatis;
+	char *filters;
+} lexgrog;
+
+extern int find_name (const char *file, const char *filename,
+		      lexgrog *p_lg, const char *encoding);
+extern int find_name_decompressed (struct pipeline *p, const char *filename,
+				   lexgrog *p_lg);