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added error reporting/validation of parsed data, still needs some more testing before release tho...

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git-svn-id: http://parsecsv-for-php.googlecode.com/svn/trunk@27 339761fc-0c37-0410-822d-8b8cac1f6a97
This commit is contained in:
zynode
2008-04-07 16:17:44 +00:00
parent ae00f949f0
commit 2dfd35b988
1 changed files with 82 additions and 23 deletions
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105
parsecsv.lib.php
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@@ -4,7 +4,7 @@ class parseCSV {
/*
Class: parseCSV v0.3.2
Class: parseCSV v0.3.3 beta
http://code.google.com/p/parsecsv-for-php/
@@ -140,6 +140,19 @@ class parseCSV {
# loaded file contents
var $file_data;
# error while parsing input data
# 0 = No errors found. Everything should be fine :)
# 1 = Hopefully correctable syntax error was found.
# 2 = Enclosure character (double quote by default)
# was found in non-enclosed field. This means
# the file is either corrupt, or does not
# standard CSV formatting. Please validate
# the parsed data yourself.
var $error = 0;
# detailed error info
var $error_info = array();
# array of field values in data parsed
var $titles = array();
@@ -170,6 +183,7 @@ class parseCSV {
* @return nothing
*/
function parse ($input = null, $offset = null, $limit = null, $conditions = null) {
if ( $input === null ) $input = $this->file;
if ( !empty($input) ) {
if ( $offset !== null ) $this->offset = $offset;
if ( $limit !== null ) $this->limit = $limit;
@@ -270,14 +284,14 @@ class parseCSV {
$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 == $enclosure && (!$enclosed || $nch != $enclosure) ) {
$enclosed = ( $enclosed ) ? false : true ;
// inline quotes
} elseif ( $ch == $enclosure && $enclosed ) {
$i++;
if ( $ch == $enclosure ) {
if ( !$enclosed || $nch != $enclosure ) {
$enclosed = ( $enclosed ) ? false : true ;
} elseif ( $enclosed ) {
$i++;
}
// end of row
} elseif ( ($ch == "\n" && $pch != "\r" || $ch == "\r") && !$enclosed ) {
@@ -311,13 +325,12 @@ class parseCSV {
// capture most probable delimiter
ksort($filtered);
$delimiter = reset($filtered);
$this->delimiter = $delimiter;
$this->delimiter = reset($filtered);
// parse data
if ( $parse ) $this->data = $this->parse_string();
return $delimiter;
return $this->delimiter;
}
@@ -349,6 +362,8 @@ class parseCSV {
} else return false;
}
$white_spaces = str_replace($this->delimiter, '', " \t\x0B\0");
$rows = array();
$row = array();
$row_count = 0;
@@ -365,22 +380,65 @@ class parseCSV {
$nch = ( isset($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) ) {
$enclosed = ( $enclosed ) ? false : true ;
if ( $enclosed ) $was_enclosed = true;
// inline quotes
} elseif ( $ch == $this->enclosure && $enclosed ) {
$current .= $ch;
$i++;
// open/close quotes, and inline quotes
if ( $ch == $this->enclosure ) {
if ( !$enclosed ) {
if ( ltrim($current, $white_spaces) == '' ) {
$enclosed = true;
$was_enclosed = true;
} else {
$this->error = 2;
$error_row = count($rows) + 1;
$error_col = $col + 1;
if ( !isset($this->error_info[$error_row.'-'.$error_col]) ) {
$this->error_info[$error_row.'-'.$error_col] = array(
'info' => 'Syntax error found on row '.$error_row.'. Non-enclosed fields can not contain double-quotes.',
'row' => $error_row,
'field' => $error_col,
'field_name' => (!empty($head[$col])) ? $head[$col] : null,
);
}
$current .= $ch;
}
} elseif ($nch == $this->enclosure) {
$current .= $ch;
$i++;
} elseif ( $nch != $this->delimiter && $nch != "\r" && $nch != "\n" ) {
for ( $x=($i+1); isset($data{$x}) && ltrim($data{$x}, $white_spaces) == ''; $x++ ) {}
if ( $data{$x} == $this->delimiter ) {
$enclosed = false;
$i = $x;
} else {
$this->error = 1;
$error_row = count($rows) + 1;
$error_col = $col + 1;
if ( !isset($this->error_info[$error_row.'-'.$error_col]) ) {
$this->error_info[$error_row.'-'.$error_col] = array(
'info' =>
'Syntax error found on row '.(count($rows) + 1).'. '.
'Fields containing double quotes must be enclosed with double quotes. '.
'Additionally, two double quotes must be used within an enclosed field rather than a single one.',
'row' => count($rows) + 1,
'field' => $col + 1,
'field_name' => (!empty($head[$col])) ? $head[$col] : null,
);
}
$current .= $ch;
$enclosed = false;
}
} else {
$enclosed = false;
}
// end of field/row
} elseif ( ($ch == $this->delimiter || ($ch == "\n" && $pch != "\r") || $ch == "\r") && !$enclosed ) {
if ( !$was_enclosed ) $current = trim($current);
} elseif ( ($ch == $this->delimiter || $ch == "\n" || $ch == "\r") && !$enclosed ) {
$key = ( !empty($head[$col]) ) ? $head[$col] : $col ;
$row[$key] = $current;
if ( $was_enclosed && $current{strlen($current)-1} == $this->enclosure ) {
$current = substr($current, 0, -1);
}
$row[$key] = ( $was_enclosed ) ? $current : trim($current) ;
$current = '';
$was_enclosed = false;
$col++;
// end of row
@@ -405,6 +463,7 @@ class parseCSV {
if ( $this->sort_by === null && $this->limit !== null && count($rows) == $this->limit ) {
$i = $strlen;
}
if ( $ch == "\r" && $nch == "\n" ) $i++;
}
// append character to current field