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/*
* template.h - SOIF template processing support
*
* Darren Hardy, hardy@cs.colorado.edu, July 1994
*
* $Id: template.h,v 1.8 1995/02/01 00:55:09 hardy Exp $
*
* ----------------------------------------------------------------------
* Copyright (c) 1994, 1995. All rights reserved.
*
* Mic Bowman of Transarc Corporation.
* Peter Danzig of the University of Southern California.
* Darren R. Hardy of the University of Colorado at Boulder.
* Udi Manber of the University of Arizona.
* Michael F. Schwartz of the University of Colorado at Boulder.
*
* This copyright notice applies to all code in Harvest other than
* subsystems developed elsewhere, which contain other copyright notices
* in their source text.
*
* The Harvest software was developed by the Internet Research Task
* Force Research Group on Resource Discovery (IRTF-RD). The Harvest
* software may be used for academic, research, government, and internal
* business purposes without charge. If you wish to sell or distribute
* the Harvest software to commercial clients or partners, you must
* license the software. See
* http://harvest.cs.colorado.edu/harvest/copyright,licensing.html#licensing.
*
* The Harvest software is provided ``as is'', without express or
* implied warranty, and with no support nor obligation to assist in its
* use, correction, modification or enhancement. We assume no liability
* with respect to the infringement of copyrights, trade secrets, or any
* patents, and are not responsible for consequential damages. Proper
* use of the Harvest software is entirely the responsibility of the user.
*
* For those who are using Harvest for non-commercial purposes, you may
* make derivative works, subject to the following constraints:
*
* - You must include the above copyright notice and these accompanying
* paragraphs in all forms of derivative works, and any documentation
* and other materials related to such distribution and use acknowledge
* that the software was developed at the above institutions.
*
* - You must notify IRTF-RD regarding your distribution of the
* derivative work.
*
* - You must clearly notify users that your are distributing a modified
* version and not the original Harvest software.
*
* - Any derivative product is also subject to the restrictions of the
* copyright, including distribution and use limitations.
*/
#ifndef _TEMPLATE_H_
#define _TEMPLATE_H_
#include <stdio.h>
#include "config.h"
/* Attribute-Value pair */
struct attr_value {
char *attribute; /* Attribute string; '\0' terminated */
char *value; /* Value data; not '\0' terminated */
size_t vsize; /* # of bytes in the value data */
size_t offset; /* Starting byte of the value data in input */
};
typedef struct attr_value AVPair;
/* List of Attribute-Value pairs */
struct attr_value_list {
AVPair *data;
struct attr_value_list *next;
};
typedef struct attr_value_list AVList;
/* SOIF Template structure */
struct template {
char *template_type; /* type of template */
char *url; /* URL for template */
AVList *list; /* List of Attribute-Value pairs */
size_t offset; /* Starting byte of the template; the @ */
size_t length; /* # of bytes that the template covers */
};
typedef struct template Template;
/* Common Attribute Tags */
#define T_ABSTRACT "Abstract"
#define T_AUTHOR "Author"
#define T_FILESIZE "File-Size"
#define T_FULLTEXT "Full-Text"
#define T_GENERATION "Generation-Time"
#define T_GHOST "Gatherer-Host"
#define T_GNAME "Gatherer-Name"
#define T_GVERSION "Gatherer-Version"
#define T_KEYS "Keywords"
#define T_LMT "Last-Modification-Time"
#define T_MD5 "MD5"
#define T_NESTED "Nested-Filename"
#define T_PARTTEXT "Partial-Text"
#define T_REFERENCE "References"
#define T_REFRESH "Refresh-Rate"
#define T_RELATED "Related"
#define T_TITLE "Title"
#define T_TTL "Time-to-Live"
#define T_TYPE "Type"
#define T_UPDATE "Update-Time"
#define T_URL "URL"
/* Backwards compatibility */
#define T_FILETYPE T_TYPE
#define T_TIMESTAMP T_LMT
/* Common time_t numbers */
#define HOUR ((time_t) 60 * 60)
#define DAY ((time_t) HOUR * 24)
#define WEEK ((time_t) DAY * 7)
#define MONTH ((time_t) WEEK * 4)
#define YEAR ((time_t) MONTH * 12)
#ifndef _PARAMS
#if defined(__STDC__) || defined(__cplusplus) || defined(__STRICT_ANSI__)
#define _PARAMS(ARGS) ARGS
#else /* Traditional C */
#define _PARAMS(ARGS) ()
#endif /* __STDC__ */
#endif /* _PARAMS */
/* Templates */
Template *create_template _PARAMS((char *, char *));
Template *embed_template _PARAMS((Template *, Template *));
void free_template _PARAMS((Template *));
/* Attribute-Value pairs */
AVList *create_AVList _PARAMS((char *, char *, int));
void add_AVList _PARAMS((AVList *, char *, char *, int));
void FAST_add_AVList _PARAMS((AVList *, char *, char *, int));
void append_AVList _PARAMS((AVList *, char *, char *, int));
AVPair *extract_AVPair _PARAMS((AVList *, char *));
AVList *merge_AVList _PARAMS((AVList *, AVList *));
AVList *sort_AVList _PARAMS((AVList *));
AVList *sink_embedded _PARAMS((AVList *));
int exists_AVList _PARAMS((AVList *, char *));
void free_AVPair _PARAMS((AVPair *));
void free_AVList _PARAMS((AVList *));
/* Printing Templates */
Buffer *init_print_template _PARAMS((FILE *));
void print_template _PARAMS((Template *));
void print_template_header _PARAMS((Template *));
void print_template_body _PARAMS((Template *));
void print_template_trailer _PARAMS((Template *));
void finish_print_template _PARAMS(());
/* Parsing Templates */
void init_parse_template_file _PARAMS((FILE *));
void init_parse_template_string _PARAMS((char *, int));
Template *parse_template _PARAMS(());
void finish_parse_template _PARAMS(());
int is_parse_end_of_input _PARAMS(());
#endif /* _TEMPLATE_H_ */
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