ucx: src/ucx/properties.h@2f5dea574a75 (annotated)

src/ucx/properties.h@2f5dea574a75 (annotated)

src/ucx/properties.h

Sat, 28 Oct 2017 15:43:51 +0200

author: Mike Becker <universe@uap-core.de>
date: Sat, 28 Oct 2017 15:43:51 +0200
changeset 259: 2f5dea574a75
parent 251: fae240d633fc
child 278: 7b9170c22786
permissions: -rw-r--r--

modules documentation

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2017 Mike Becker, Olaf Wintermann All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS 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 COPYRIGHT HOLDER OR 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.
  */
 /**
  * @file properties.h
  *
  * Load / store utilities for properties files.
  *
  * @author Mike Becker
  * @author Olaf Wintermann
  */
 #ifndef UCX_PROPERTIES_H
 #define	UCX_PROPERTIES_H
 #include "ucx.h"
 #include "map.h"
 #ifdef	__cplusplus
 extern "C" {
 #endif
 /**
  * UcxProperties object for parsing properties data.
  * Most of the fields are for internal use only. You may configure the
  * properties parser, e.g. by changing the used delimiter or specifying
  * up to three different characters that shall introduce comments.
  */
 typedef struct {
     /**
      * Input buffer (don't set manually).
      * Automatically set by calls to ucx_properties_fill().
      */
     char   *buffer;
     /**
      * Length of the input buffer (don't set manually).
      * Automatically set by calls to ucx_properties_fill().
      */
     size_t buflen;
     /**
      * Current buffer position (don't set manually).
      * Used by ucx_properties_next().
      */
     size_t pos;
     /**
      * Internal temporary buffer (don't set manually).
      * Used by ucx_properties_next().
      */
     char   *tmp;
     /**
      * Internal temporary buffer length (don't set manually).
      * Used by ucx_properties_next().
      */
     size_t tmplen;
     /**
      * Internal temporary buffer capacity (don't set manually).
      * Used by ucx_properties_next().
      */
     size_t tmpcap;
     /**
      * Parser error code.
      * This is always 0 on success and a nonzero value on syntax errors.
      * The value is set by ucx_properties_next().
      */
     int    error;
     /**
      * The delimiter that shall be used.
      * This is '=' by default.
      */
     char   delimiter;
     /**
      * The first comment character.
      * This is '#' by default.
      */
     char   comment1;
     /**
      * The second comment character.
      * This is not set by default.
      */
     char   comment2;
     /**
      * The third comment character.
      * This is not set by default.
      */
     char   comment3;
 } UcxProperties;
 /**
  * Constructs a new UcxProperties object.
  * @return a pointer to the new UcxProperties object
  */
 UcxProperties *ucx_properties_new();
 /**
  * Destroys a UcxProperties object.
  * @param prop the UcxProperties object to destroy
  */
 void ucx_properties_free(UcxProperties *prop);
 /**
  * Sets the input buffer for the properties parser.
  *
  * After calling this function, you may parse the data by calling
  * ucx_properties_next() until it returns 0. The function ucx_properties2map()
  * is a convenience function that reads as much data as possible by using this
  * function.
  *
  *
  * @param prop the UcxProperties object
  * @param buf a pointer to the new buffer
  * @param len the payload length of the buffer
  * @see ucx_properties_next()
  * @see ucx_properties2map()
  */
 void ucx_properties_fill(UcxProperties *prop, char *buf, size_t len);
 /**
  * Retrieves the next key/value-pair.
  *
  * This function returns a nonzero value as long as there are key/value-pairs
  * found. If no more key/value-pairs are found, you may refill the input buffer
  * with ucx_properties_fill().
  *
  * <b>Attention:</b> the sstr_t.ptr pointers of the output parameters point to
  * memory within the input buffer of the parser and will get invalid some time.
  * If you want long term copies of the key/value-pairs, use sstrdup() after
  * calling this function.
  *
  * @param prop the UcxProperties object
  * @param name a pointer to the sstr_t that shall contain the property name
  * @param value a pointer to the sstr_t that shall contain the property value
  * @return Nonzero, if a key/value-pair was successfully retrieved
  * @see ucx_properties_fill()
  */
 int ucx_properties_next(UcxProperties *prop, sstr_t *name, sstr_t *value);
 /**
  * Retrieves all available key/value-pairs and puts them into a UcxMap.
  *
  * This is done by successive calls to ucx_properties_next() until no more
  * key/value-pairs can be retrieved.
  *
  * @param prop the UcxProperties object
  * @param map the target map
  * @return The UcxProperties.error code (i.e. 0 on success).
  * @see ucx_properties_fill()
  */
 int ucx_properties2map(UcxProperties *prop, UcxMap *map);
 /**
  * Loads a properties file to a UcxMap.
  *
  * This is a convenience function that reads data from an input
  * stream until the end of the stream is reached.
  *
  * @param map the map object to write the key/value-pairs to
  * @param file the <code>FILE*</code> stream to read from
  * @return 0 on success, or a non-zero value on error
  *
  * @see ucx_properties_fill()
  * @see ucx_properties2map()
  */
 int ucx_properties_load(UcxMap *map, FILE *file);
 /**
  * Stores a UcxMap to a file.
  *
  * The key/value-pairs are written by using the following format:
  *
  * <code>[key] = [value]\\n</code>
  *
  * @param map the map to store
  * @param file the <code>FILE*</code> stream to write to
  * @return 0 on success, or a non-zero value on error
  */
 int ucx_properties_store(UcxMap *map, FILE *file);
 #ifdef	__cplusplus
 }
 #endif
 #endif	/* UCX_PROPERTIES_H */

Mercurial > hg > ucx / annotate

src/ucx/properties.h@2f5dea574a75 (annotated)

src/ucx/properties.h