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1c850bfcca
This patch adds missing newlines, trims multiple redundant final newlines into a single one, and trims redundant leading newlines. According to POSIX, a line is a sequence of zero or more non-' <newline>' characters plus a terminating '<newline>' character. [1] Files should normally have at least one final newline character. C89 [2] and later standards [3] mention a final newline: "A source file that is not empty shall end in a new-line character, which shall not be immediately preceded by a backslash character." Although it is not mandatory for all files to have a final newline fixed, a more consistent and homogeneous approach brings less of commit differences issues and a better development experience in certain text editors and IDEs. [1] http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_206 [2] https://port70.net/~nsz/c/c89/c89-draft.html#2.1.1.2 [3] https://port70.net/~nsz/c/c99/n1256.html#5.1.1.2
97 lines
1.6 KiB
PHP
97 lines
1.6 KiB
PHP
<?php
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/** @file dbareader.inc
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* @ingroup Examples
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* @brief class DbaReader
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* @author Marcus Boerger
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* @date 2003 - 2005
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*
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* SPL - Standard PHP Library
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*/
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/** @ingroup Examples
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* @brief This implements a DBA Iterator.
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* @author Marcus Boerger
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* @version 1.0
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*/
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class DbaReader implements Iterator
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{
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protected $db = NULL;
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private $key = false;
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private $val = false;
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/**
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* Open database $file with $handler in read only mode.
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*
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* @param file Database file to open.
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* @param handler Handler to use for database access.
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*/
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function __construct($file, $handler) {
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if (!$this->db = dba_open($file, 'r', $handler)) {
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throw new exception('Could not open file ' . $file);
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}
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}
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/**
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* Close database.
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*/
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function __destruct() {
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dba_close($this->db);
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}
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/**
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* Rewind to first element.
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*/
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function rewind() {
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$this->key = dba_firstkey($this->db);
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$this->fetch_data();
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}
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/**
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* Move to next element.
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*
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* @return void
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*/
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function next() {
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$this->key = dba_nextkey($this->db);
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$this->fetch_data();
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}
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/**
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* Fetches the current data if $key is valid
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*/
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private function fetch_data() {
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if ($this->key !== false) {
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$this->val = dba_fetch($this->key, $this->db);
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}
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}
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/**
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* @return Current data.
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*/
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function current() {
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return $this->val;
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}
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/**
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* @return Whether more elements are available.
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*/
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function valid() {
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if ($this->db && $this->key !== false) {
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return true;
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} else {
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return false;
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}
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}
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/**
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* @return Current key.
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*/
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function key() {
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return $this->key;
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}
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}
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?>
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