ossp-pkg/cfg/cfg.h
1.18
/*
** OSSP cfg - Configuration Parsing
** Copyright (c) 2002-2006 Ralf S. Engelschall <rse@engelschall.com>
** Copyright (c) 2002-2006 The OSSP Project (http://www.ossp.org/)
**
** This file is part of OSSP cfg, a configuration parsing
** library which can be found at http://www.ossp.org/pkg/lib/cfg/.
**
** 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.
**
** THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
** WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
** CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
** USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
** OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
** SUCH DAMAGE.
**
** cfg.h: master API
*/
#ifndef __CFG_H__
#define __CFG_H__
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
/* general return codes */
typedef enum {
CFG_OK = 0, /* everything ok */
CFG_ERR_ARG, /* invalid argument */
CFG_ERR_USE, /* invalid use */
CFG_ERR_MEM, /* no more memory available */
CFG_ERR_SYS, /* operating system error */
CFG_ERR_FMT, /* formatting error */
CFG_ERR_INT, /* internal error */
CFG_ERR_SYN, /* syntax error */
CFG_ERR_NDE /* node reference error */
} cfg_rc_t;
/* configuration format */
typedef enum {
CFG_FMT_CFG,
CFG_FMT_XML
} cfg_fmt_t;
/* list of node types */
typedef enum {
CFG_NODE_TYPE_SEQ, /* node represents a sequence */
CFG_NODE_TYPE_DIR, /* node represents a directive */
CFG_NODE_TYPE_OPT, /* node represents a option */
CFG_NODE_TYPE_ARG /* node represents a argument */
} cfg_node_type_t;
/* list of node attributes */
typedef int cfg_node_attr_t;
enum {
/* attribute selection */
CFG_NODE_ATTR_PARENT = (1 << 0), /* RW: (cfg_node_t *) pointer to parent node */
CFG_NODE_ATTR_LBROTH = (1 << 1), /* RW: (cfg_node_t *) pointer to left brother node */
CFG_NODE_ATTR_RBROTH = (1 << 2), /* RW: (cfg_node_t *) pointer to right brother node */
CFG_NODE_ATTR_CHILD1 = (1 << 3), /* RW: (cfg_node_t *) pointer to first child node */
CFG_NODE_ATTR_CHILDL = (1 << 4), /* RO: (cfg_node_t *) pointer to last child */
CFG_NODE_ATTR_CHILDS = (1 << 5), /* RO: (int) number of child nodes */
CFG_NODE_ATTR_NODES = (1 << 6), /* RO: (int) number of total nodes (recursive) */
CFG_NODE_ATTR_DEPTH = (1 << 7), /* RO: (int) number of nodes back to root node */
CFG_NODE_ATTR_SRCNAME = (1 << 8), /* RW: (char *) pointer to the source name */
CFG_NODE_ATTR_SRCPOS = (1 << 9), /* RW: (int) position offset into source */
CFG_NODE_ATTR_TYPE = (1 << 10), /* RW: (cfg_node_type_t) type of node */
CFG_NODE_ATTR_TOKEN = (1 << 11), /* RW: (char *) pointer to the node token string */
CFG_NODE_ATTR_DATA = (1 << 12), /* RW: (cfg_data_t *) pointer to the node annotation data */
/* attribute passing semantics */
CFG_ATTR_LOAN = (1 << 13), /* loan attribute on set/get: source still owns orginal data */
CFG_ATTR_GIFT = (1 << 14), /* gift attribute on set/get: target then owns orginal data */
CFG_ATTR_COPY = (1 << 15) /* copy attribute on set/get: target then owns copied data */
};
/* list of data types */
typedef enum {
CFG_DATA_TYPE_PTR, /* "void *" */
CFG_DATA_TYPE_STR, /* "char *" */
CFG_DATA_TYPE_INT, /* "int" */
CFG_DATA_TYPE_FLT /* "double" */
} cfg_data_type_t;
/* list of data control operations */
typedef enum {
CFG_DATA_CTRL_CLONE, /* clone data */
CFG_DATA_CTRL_DESTROY /* destroy data */
} cfg_data_ctrl_t;
/* list of data attributes */
typedef enum {
CFG_DATA_ATTR_TYPE, /* RW: type of data value */
CFG_DATA_ATTR_VALUE, /* RW: pointer to data value */
CFG_DATA_ATTR_CTRL /* RW: pointer to data control callback */
} cfg_data_attr_t;
/* configuration handle type (opaque) */
struct cfg_st;
typedef struct cfg_st cfg_t;
/* configuration node type (opaque) */
struct cfg_node_st;
typedef struct cfg_node_st cfg_node_t;
/* configuration data type */
struct cfg_data_st;
typedef struct cfg_data_st cfg_data_t;
/* configuration data control callback type */
typedef cfg_rc_t (*cfg_data_cb_t)(cfg_data_t *, cfg_data_ctrl_t, ...);
/* configuration handling */
cfg_rc_t cfg_create (cfg_t **cfg);
cfg_rc_t cfg_destroy (cfg_t *cfg);
cfg_rc_t cfg_error (cfg_t *cfg, cfg_rc_t rc, char **error);
long cfg_version (void);
/* configuration import/export */
cfg_rc_t cfg_import (cfg_t *cfg, cfg_node_t *node, cfg_fmt_t fmt, const char *in_ptr, size_t in_len);
cfg_rc_t cfg_export (cfg_t *cfg, cfg_node_t *node, cfg_fmt_t fmt, char **ex_ptr, size_t ex_len);
/* node handling */
cfg_rc_t cfg_node_create (cfg_t *cfg, cfg_node_t **node);
cfg_rc_t cfg_node_destroy(cfg_t *cfg, cfg_node_t *node);
cfg_rc_t cfg_node_clone (cfg_t *cfg, cfg_node_t *node, cfg_node_t **node2);
/* node attribution */
cfg_rc_t cfg_node_set (cfg_t *cfg, cfg_node_t *node, cfg_node_attr_t attr, ...);
cfg_rc_t cfg_node_get (cfg_t *cfg, cfg_node_t *node, cfg_node_attr_t attr, ...);
/* node traversing/locating */
cfg_rc_t cfg_node_root (cfg_t *cfg, cfg_node_t *node, cfg_node_t **node_old);
cfg_rc_t cfg_node_select (cfg_t *cfg, cfg_node_t *node, cfg_node_t ***result, const char *spec, ...);
cfg_rc_t cfg_node_find (cfg_t *cfg, cfg_node_t *node, cfg_rc_t (*cb_fct_cmp)(cfg_t *, cfg_node_t *, void *), void *cb_ctx_cmp, cfg_node_t **cont);
cfg_rc_t cfg_node_apply (cfg_t *cfg, cfg_node_t *node, cfg_rc_t (*cb_fct_cmp)(cfg_t *, cfg_node_t *, void *), void *cb_ctx_cmp, cfg_rc_t (*cb_fct_cb)(cfg_t *, cfg_node_t *, void *), void *cb_ctx_cb);
cfg_rc_t cfg_node_cmp (cfg_t *cfg, cfg_node_t *node, void *token);
/* node linking */
cfg_rc_t cfg_node_link (cfg_t *cfg, cfg_node_t *node, cfg_node_attr_t id, cfg_node_t *node2);
cfg_rc_t cfg_node_unlink (cfg_t *cfg, cfg_node_t *node);
/* data attribution */
cfg_rc_t cfg_data_set (cfg_data_t *data, cfg_data_attr_t attr, ...);
cfg_rc_t cfg_data_get (cfg_data_t *data, cfg_data_attr_t attr, ...);
cfg_rc_t cfg_data_ctrl (cfg_data_t *data, cfg_data_ctrl_t ctrl, ...);
#endif /* __CFG_H__ */
