/*
 * config_impl.h :  private header for the config file implementation.
 *
 * ====================================================================
 * Copyright (c) 2000-2002 CollabNet.  All rights reserved.
 *
 * This software is licensed as described in the file COPYING, which
 * you should have received as part of this distribution.  The terms
 * are also available at http://subversion.tigris.org/license-1.html.
 * If newer versions of this license are posted there, you may use a
 * newer version instead, at your option.
 *
 * This software consists of voluntary contributions made by many
 * individuals.  For exact contribution history, see the revision
 * history and logs, available at http://subversion.tigris.org/.
 * ====================================================================
 */


#ifndef SVN_LIBSVN_SUBR_CONFIG_IMPL_H
#define SVN_LIBSVN_SUBR_CONFIG_IMPL_H


#include <apr_hash.h>
#include "svn_types.h"
#include "svn_pools.h"
#include "svn_string.h"
#include "svn_config.h"
#include "svn_private_config.h"

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */


/* The configuration data. This is a superhash of sections and options. */
struct svn_config_t
{
  /* Table of cfg_section_t's. */
  apr_hash_t *sections;

  /* Pool for hash tables, table entries and unexpanded values */
  apr_pool_t *pool;

  /* Pool for expanded values -- this is separate, so that we can
     clear it when modifying the config data. */
  apr_pool_t *x_pool;

  /* Indicates that some values in the configuration have been expanded. */
  svn_boolean_t x_values;

  /* Temporary string used for lookups.  (Using a stringbuf so that
     frequent resetting is efficient.) */
  svn_stringbuf_t *tmp_key;
};


/* Read sections and options from a file. */
svn_error_t *svn_config__parse_file (svn_config_t *cfg,
                                     const char *file,
                                     svn_boolean_t must_exist);


#ifdef SVN_WIN32
/* Read sections and options from the Windows Registry. */
svn_error_t *svn_config__parse_registry (svn_config_t *cfg,
                                         const char *file,
                                         svn_boolean_t must_exist);

/* ### It's unclear to me whether this registry stuff should get the
   double underscore or not, and if so, where the extra underscore
   would go.  Thoughts?  -kff */
#  define SVN_REGISTRY_PREFIX "REGISTRY:"
#  define SVN_REGISTRY_PREFIX_LEN ((sizeof (SVN_REGISTRY_PREFIX)) - 1)
#  define SVN_REGISTRY_HKLM "HKLM\\"
#  define SVN_REGISTRY_HKLM_LEN ((sizeof (SVN_REGISTRY_HKLM)) - 1)
#  define SVN_REGISTRY_HKCU "HKCU\\"
#  define SVN_REGISTRY_HKCU_LEN ((sizeof (SVN_REGISTRY_HKCU)) - 1)
#  define SVN_REGISTRY_PATH "Software\\Tigris.org\\Subversion\\"
#  define SVN_REGISTRY_PATH_LEN ((sizeof (SVN_REGISTRY_PATH)) - 1)
#  define SVN_REGISTRY_CONFIG_PROXY_KEY "Proxies"
#  define SVN_REGISTRY_SYS_CONFIG_PROXY_PATH \
                               SVN_REGISTRY_PREFIX     \
                               SVN_REGISTRY_HKLM       \
                               SVN_REGISTRY_PATH       \
                               SVN_REGISTRY_CONFIG_PROXY_KEY
#  define SVN_REGISTRY_USR_CONFIG_PROXY_PATH \
                               SVN_REGISTRY_PREFIX     \
                               SVN_REGISTRY_HKCU       \
                               SVN_REGISTRY_PATH       \
                               SVN_REGISTRY_CONFIG_PROXY_KEY

#else  /* ! SVN_WIN32 */

/* System-wide configuration directory.  NOTE: Don't use this
   directly; use svn_config__sys_config_path() instead. */
#  define SVN_CONFIG__SYS_DIRECTORY "/etc/subversion"

#endif /* SVN_WIN32 */

/* Subversion's config subdir in the user's home directory. */
#ifdef SVN_WIN32
#  define SVN_CONFIG__USR_DIRECTORY     "Subversion"
#else  /* ! SVN_WIN32 */
#  define SVN_CONFIG__USR_DIRECTORY     ".subversion"
#endif /* SVN_WIN32 */

/* The description/instructions file in the config directory. */
#define SVN_CONFIG__USR_README_FILE    "README"

/* The proxy config file in SVN_CONFIG__DIRECTORY. */
#define SVN_CONFIG__USR_PROXY_FILE    "proxies"


/* Set *PATH_P to the path to config file FNAME in the system
   configuration area, allocated in POOL.  If FNAME is NULL, set
   *PATH_P to the directory name of the system config area, either
   allocated in POOL or a static constant string.

   If the system configuration area cannot be located (possible under
   Win32), set *PATH_P to NULL regardless of FNAME.  */
svn_error_t *
svn_config__sys_config_path (const char **path_p,
                             const char *fname,
                             apr_pool_t *pool);


/* Set *PATH_P to the path to config file FNAME in the user's personal
   configuration area; if FNAME is NULL, set *PATH_P to the directory
   name of the user's config area.  Allocate *PATH_P in POOL.

   If the user's personal configuration area cannot be located (most
   likely under Win32), set *PATH_P to NULL regardless of FNAME.  */
svn_error_t *
svn_config__user_config_path (const char **path_p,
                              const char *fname,
                              apr_pool_t *pool);


#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* SVN_LIBSVN_SUBR_CONFIG_IMPL_H */


/*
 * local variables:
 * eval: (load-file "../../tools/dev/svn-dev.el")
 * end:
 */