parsecsv/parsecsv-for-php
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auto readability

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William Knauss
2014-02-06 18:27:54 -05:00
parent b72385395e
commit 75038f9d2f
1 changed files with 40 additions and 20 deletions
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60
parsecsv.lib.php
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@@ -334,31 +334,45 @@ class parseCSV {
* @param enclosure enclosure character, default is double quote ("). * @param enclosure enclosure character, default is double quote (").
* @return delimiter character * @return delimiter character
*/ */
function auto ($file = null, $parse = true, $search_depth = null, $preferred = null, $enclosure = null) { public function auto ($file = null, $parse = true, $search_depth = null, $preferred = null, $enclosure = null) {
if ( $file === null ) $file = $this->file; if ( $file === null ) {
if ( empty($search_depth) ) $search_depth = $this->auto_depth; $file = $this->file;
if ( $enclosure === null ) $enclosure = $this->enclosure; }
if ( $preferred === null ) $preferred = $this->auto_preferred; if ( empty($search_depth) ) {
$search_depth = $this->auto_depth;
}
if ( $enclosure === null ) {
$enclosure = $this->enclosure;
}
if ( $preferred === null ) {
$preferred = $this->auto_preferred;
}
if ( empty($this->file_data) ) { if ( empty($this->file_data) ) {
if ( $this->_check_data($file) ) { if ( $this->_check_data($file) ) {
$data = &$this->file_data; $data = &$this->file_data;
} else return false; }
} else { else {
return false;
}
}
else {
$data = &$this->file_data; $data = &$this->file_data;
} }
$chars = array(); $chars = array();
$strlen = strlen($data); $strlen = strlen($data);
$enclosed = false; $enclosed = false;
$n = 1; $n = 1;
$to_end = true; $to_end = true;
// walk specific depth finding posssible delimiter characters // walk specific depth finding posssible delimiter characters
for ( $i=0; $i < $strlen; $i++ ) { for ( $i=0; $i < $strlen; $i++ ) {
$ch = $data{$i}; $ch = $data{$i};
$nch = ( isset($data{$i+1}) ) ? $data{$i+1} : false ; $nch = ( isset($data{$i+1}) ) ? $data{$i+1} : false ;
$pch = ( isset($data{$i-1}) ) ? $data{$i-1} : false ; $pch = ( isset($data{$i-1}) ) ? $data{$i-1} : false ;
@@ -366,25 +380,30 @@ class parseCSV {
if ( $ch == $enclosure ) { if ( $ch == $enclosure ) {
if ( !$enclosed || $nch != $enclosure ) { if ( !$enclosed || $nch != $enclosure ) {
$enclosed = ( $enclosed ) ? false : true ; $enclosed = ( $enclosed ) ? false : true ;
} elseif ( $enclosed ) { }
elseif ( $enclosed ) {
$i++; $i++;
} }
// end of row // end of row
} elseif ( ($ch == "\n" && $pch != "\r" || $ch == "\r") && !$enclosed ) { }
elseif ( ($ch == "\n" && $pch != "\r" || $ch == "\r") && !$enclosed ) {
if ( $n >= $search_depth ) { if ( $n >= $search_depth ) {
$strlen = 0; $strlen = 0;
$to_end = false; $to_end = false;
} else { }
else {
$n++; $n++;
} }
// count character // count character
} elseif (!$enclosed) { }
elseif (!$enclosed) {
if ( !preg_match('/['.preg_quote($this->auto_non_chars, '/').']/i', $ch) ) { if ( !preg_match('/['.preg_quote($this->auto_non_chars, '/').']/i', $ch) ) {
if ( !isset($chars[$ch][$n]) ) { if ( !isset($chars[$ch][$n]) ) {
$chars[$ch][$n] = 1; $chars[$ch][$n] = 1;
} else { }
else {
$chars[$ch][$n]++; $chars[$ch][$n]++;
} }
} }
@@ -392,7 +411,7 @@ class parseCSV {
} }
// filtering // filtering
$depth = ( $to_end ) ? $n-1 : $n ; $depth = ( $to_end ) ? $n-1 : $n ;
$filtered = array(); $filtered = array();
foreach( $chars as $char => $value ) { foreach( $chars as $char => $value ) {
if ( $match = $this->_check_count($char, $value, $depth, $preferred) ) { if ( $match = $this->_check_count($char, $value, $depth, $preferred) ) {
@@ -405,10 +424,11 @@ class parseCSV {
$this->delimiter = reset($filtered); $this->delimiter = reset($filtered);
// parse data // parse data
if ( $parse ) $this->data = $this->parse_string(); if ( $parse ) {
$this->data = $this->parse_string();
}
return $this->delimiter; return $this->delimiter;
} }