parsecsv/parsecsv-for-php
1
0
Fork 0
mirror of https://github.com/parsecsv/parsecsv-for-php.git synced 2026-02-19 08:36:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

conditions, limit and offset are functional. conditions needs a rewrite tho.

Browse Source 
added examples to trunk.


git-svn-id: http://parsecsv-for-php.googlecode.com/svn/trunk@13 339761fc-0c37-0410-822d-8b8cac1f6a97
This commit is contained in:
zynode
2007-08-08 18:48:11 +00:00
parent 82049f1701
commit 9c389ed0c1
5 changed files with 150 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

103
parsecsv.lib.php
View File

@@ -76,6 +76,7 @@ class parseCSV {
/**
* Configuration
* - set these options with $object->var_name = 'value';
*/
# use first line/entry as field names
@@ -92,6 +93,15 @@ class parseCSV {
var $delimiter = ',';
var $enclosure = '"';
# basic conditional matching against values. rows that don't match are ignored
var $conditions = array();
# number of rows to ignore from beginning of data
var $offset = null;
# limits the number of returned rows to specified amount
var $limit = null;
# number of rows to analyze when attempting to auto-detect delimiter
var $auto_depth = 15;
@@ -137,7 +147,10 @@ class parseCSV {
* @param input CSV file or string
* @return nothing
*/
function parseCSV ($input = null) {
function parseCSV ($input = null, $offset = null, $limit = null, $conditions = array()) {
if ( $offset !== null ) $this->offset = $offset;
if ( $limit !== null ) $this->limit = $limit;
if ( count($conditions) > 0 ) $this->conditions = $conditions;
if ( !empty($input) ) $this->parse($input);
}
@@ -151,8 +164,11 @@ class parseCSV {
* @param input CSV file or string
* @return nothing
*/
function parse ($input = null) {
function parse ($input = null, $offset = null, $limit = null, $conditions = array()) {
if ( !empty($input) ) {
if ( $offset !== null ) $this->offset = $offset;
if ( $limit !== null ) $this->limit = $limit;
if ( count($conditions) > 0 ) $this->conditions = $conditions;
if ( is_readable($input) ) {
$this->data = $this->parse_file($input);
} else {
@@ -367,9 +383,9 @@ class parseCSV {
// walk through each character
for ( $i=0; $i < $strlen; $i++ ) {
$ch = $data[$i];
$nch = ( isset($data[$i+1]) ) ? $data[$i+1] : false ;
$pch = ( isset($data[$i-1]) ) ? $data[$i-1] : false ;
$ch = $data{$i};
$nch = ( isset($data{$i+1}) ) ? $data{$i+1} : false ;
$pch = ( isset($data{$i-1}) ) ? $data{$i-1} : false ;
// open and closing quotes
if ( $ch == $this->enclosure && (!$enclosed || $nch != $this->enclosure) ) {
@@ -390,22 +406,29 @@ class parseCSV {
// end of row
if ( $ch == "\n" || $ch == "\r" ) {
if ( $this->heading && empty($head) ) {
$head = $row;
} elseif ( empty($this->fields) || (!empty($this->fields) && (($this->heading && $row_count > 0) || !$this->heading)) ) {
if ( !empty($this->sort_by) && !empty($row[$this->sort_by]) ) {
if ( isset($rows[$row[$this->sort_by]]) ) {
$rows[$row[$this->sort_by].'_0'] = &$rows[$row[$this->sort_by]];
unset($rows[$row[$this->sort_by]]);
for ( $sn=1; isset($rows[$row[$this->sort_by].'_'.$sn]); $sn++ ) {}
$rows[$row[$this->sort_by].'_'.$sn] = $row;
} else $rows[$row[$this->sort_by]] = $row;
} else $rows[] = $row;
if ( $this->validate_offset($row_count) ) {
if ( $this->validate_row_conditions($row, $this->conditions) ) {
if ( $this->heading && empty($head) ) {
$head = $row;
} elseif ( empty($this->fields) || (!empty($this->fields) && (($this->heading && $row_count > 0) || !$this->heading)) ) {
if ( !empty($this->sort_by) && !empty($row[$this->sort_by]) ) {
if ( isset($rows[$row[$this->sort_by]]) ) {
$rows[$row[$this->sort_by].'_0'] = &$rows[$row[$this->sort_by]];
unset($rows[$row[$this->sort_by]]);
for ( $sn=1; isset($rows[$row[$this->sort_by].'_'.$sn]); $sn++ ) {}
$rows[$row[$this->sort_by].'_'.$sn] = $row;
} else $rows[$row[$this->sort_by]] = $row;
} else $rows[] = $row;
}
}
}
$row = array();
$col = 0;
$row_count++;
}
if ( $this->sort_by === null && $this->limit !== null && count($rows) == $this->limit ) {
$i = $strlen;
}
}
// append character to current field
} else {
@@ -415,6 +438,9 @@ class parseCSV {
$this->titles = $head;
if ( !empty($this->sort_by) ) {
( $this->sort_reverse ) ? krsort($rows) : ksort($rows) ;
if ( $this->offset !== null || $this->limit !== null ) {
$rows = array_slice($rows, ($this->offset === null ? 0 : $this->offset) , $this->limit, true);
}
}
return $rows;
}
@@ -463,6 +489,49 @@ class parseCSV {
// ----- [ Internal Functions ] -----------------
// ==============================================
/**
* Validate a row against specified conditions
* @param row array with values from a row
* @param conditions specified conditions that the row must match
* @return true of false
*/
function validate_row_conditions ($row = array(), $conditions = array()) {
if ( !empty($row) ) {
if ( !empty($conditions) ) {
foreach( $conditions as $key => $value ) {
if ( array_key_exists($key, $row) ) {
if ( is_array($value) ) {
$match = array();
foreach( $value as $k => $v ) {
$v = preg_quote($v, '/');
$match[] = '(?:'.str_replace('\*', '.*?', $v).')';
}
$match = implode('|', $match);
} else {
$match = preg_quote($value, '/');
$match = str_replace('\*', '.*?', $match);
}
if ( !preg_match('/^'.$match.'$/i', $row[$key]) ) {
return false;
}
}
}
}
return true;
}
return false;
}
/**
* Validates if the row is within the offset or not if sorting is disabled
* @param current_row the current row number being processed
* @return true of false
*/
function validate_offset ($current_row) {
if ( $this->sort_by === null && $this->offset !== null && $current_row < $this->offset ) return false;
return true;
}
/**
* Enclose values if needed
* - only used by unparse()