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Rewrote PHP X3 DB parser function sample code as a class and faster code
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,115 +1,178 @@ | ||
| <pre> | ||
| <?php | ||
| /* | ||
| This is a php function & demo util which parses the x3.db and x3.conf files for use in web programs. | ||
| This is a php class & demo util which parses the x3.db and x3.conf files for use in web programs. | ||
| Written by Jobe: | ||
| <Jobe> reads in the DB, parses it then print_r's it | ||
| <Jobe> if it comes across a syntax it doesnt know it stops parsing and puts the remaining data, all of it in ['parserror'] in whatever array its working in | ||
| */ | ||
|
|
||
| $conf['dbfile'] = "x3.db"; | ||
|
|
||
| $dh = fopen($conf['dbfile'], "r"); | ||
|
|
||
| $contents = fread($dh, filesize($conf['dbfile'])); | ||
|
|
||
| fclose($dh); | ||
| function parse_data ($data = "") { | ||
| static $passback = ""; | ||
| $working = $data; | ||
| $return = array(); | ||
| $loop = true; | ||
|
|
||
| if ( $data != "" ) { | ||
| while ( $loop ) { | ||
| if ( preg_match("/^\s*\/\/([^\n\r]*)[\n\r]*(.*)\$/s", $working, $matches) ) { | ||
| /* ignore // comments */ | ||
| $working = $matches[2]; | ||
| } else if ( preg_match("/^\s*#([^\n\r]*)[\n\r]*(.*)\$/s", $working, $matches) ) { | ||
| /* ignore # comments */ | ||
| $working = $matches[2]; | ||
| } else if ( preg_match("/^\s*\/\*(.*?)\*\/\s*(.*)\$/s", $working, $matches) ) { | ||
| // ignore /* */ comments | ||
| $working = $matches[2]; | ||
| } else if ( preg_match("/^\s*\}\s*;\s*(.*)\$/s", $working, $matches) ) { | ||
| /* section end */ | ||
| $passback = $matches[1]; | ||
| $loop = false; | ||
| } else if ( preg_match("/^\s*((\"(((\\\\\")|[^\"])+)\")|([^\s]+))\s*\{\s*(.*)\$/s", $working, $matches) ) { | ||
| /* section start (name quoted) */ | ||
| if ( $matches[3] != "" ) { | ||
| $return[strtolower($matches[3])] = parse_data($matches[7]); | ||
| } else { | ||
| $return[strtolower($matches[1])] = parse_data($matches[7]); | ||
| } | ||
| $working = $passback; | ||
| } else if ( preg_match("/^\s*((\"(((\\\\\")|[^\"])+)\")|([^\s]+))\s*\(\s*((((\"(((\\\\\")|[^\"])+)\")|([^\s,]+))\s*(,\s*((\"(((\\\\\")|[^\"])+)\")|([^\s,]+))\s*)*)?)\s*\)\s*;\s*(.*)\$/s", $working, $matches) ) { | ||
| /* array */ | ||
| $arraycontents = $matches[7]; | ||
| $array = array(); | ||
| while ( preg_match("/[^\s]+/", $arraycontents) ) { | ||
| preg_match("/^\s*,?\s*((\"(((\\\\\")|[^\"])+)\")|([^\s,]+))\s*(.*)/s", $arraycontents, $arraymatches); | ||
| if ( $arraymatches[3] != "" ) { | ||
| $array[] = $arraymatches[3]; | ||
| } else { | ||
| $array[] = $arraymatches[1]; | ||
| } | ||
| $arraycontents = $arraymatches[7]; | ||
| } | ||
| if ( $matches[3] != "" ) { | ||
| $return[strtolower($matches[3])] = $array; | ||
| } else { | ||
| $return[strtolower($matches[1])] = $array; | ||
| } | ||
| $working = $matches[22]; | ||
| } else if ( preg_match("/^\s*((\"(((\\\\\")|[^\"])+)\")|([^\s,]+))\s*(((\"(((\\\\\")|[^\"])+)\")|([^\s,]+)))?\s*;\s*(.*)\$/s", $working, $matches) ) { | ||
| /* name value pair */ | ||
| if ( $matches[3] != "" ) { | ||
| $key = strtolower($matches[3]); | ||
| } else { | ||
| $key = strtolower($matches[1]); | ||
| } | ||
| if ( $matches[7] != "" ) { | ||
| if ( $matches[10] != "" ) { | ||
| $val = $matches[10]; | ||
| } else { | ||
| $val = $matches[7]; | ||
| } | ||
| if ( isset($return[$key]) ) { | ||
| if ( !is_array($return[$key]) ) { | ||
| $temp = $return[$key]; | ||
| unset($return[$key]); | ||
| $return[$key][] = $temp; | ||
| $return[$key][] = $val; | ||
| } else { | ||
| $return[$key][] = $val; | ||
| } | ||
| } else { | ||
| $return[$key] = $val; | ||
| } | ||
| } else { | ||
| $return[$key] = array(); | ||
| } | ||
| $working = $matches[14]; | ||
| } else { | ||
| if ( $working != "" ) { | ||
| $return['parseerror'] = $working; | ||
| } | ||
| $passback = ""; | ||
| $loop = false; | ||
| } | ||
| } | ||
| } | ||
| See bottom of this file for examples of how to use this class | ||
| */ | ||
|
|
||
| return $return; | ||
| class X3SaxDB { | ||
| public $data; | ||
| private $raw = ""; | ||
|
|
||
| function X3SaxDB($filename = "") { | ||
| $this->data = Array(); | ||
| if ($filename != "") { | ||
| $this->parse($filename); | ||
| } | ||
| } | ||
|
|
||
| function parse($raw = "") { | ||
| $temp = Array(); | ||
| $temparray = Array(); | ||
| $key = ""; | ||
| $array = false; | ||
|
|
||
| if ($raw != "") { | ||
| $this->raw = $raw; | ||
| } | ||
|
|
||
| while ($this->raw != "") { | ||
| if (preg_match("/^[\s\r\n]*#[^\r\n]*[\r\n]+[\s\r\n]*/s", $this->raw, $matches)) { | ||
| // Remove "#<stuff>" comments | ||
| $this->raw = substr($this->raw, strLen($matches[0])); | ||
| } elseif (preg_match("/^[\s\r\n]*\/\/[^\r\n]*[\r\n]+[\s\r\n]*/s", $this->raw, $matches)) { | ||
| // Remove "//<stuff>" comments | ||
| $this->raw = substr($this->raw, strLen($matches[0])); | ||
| } elseif (preg_match("/^\/\*.*?\*\/[\r\n]+[\s\r\n]*/s", $this->raw, $matches)) { | ||
| // Remove "/*<stuff>*/" comments | ||
| $this->raw = substr($this->raw, strLen($matches[0])); | ||
| } elseif (preg_match("/^\}[\s\r\n]*;[\s\r\n]*/s", $this->raw, $matches)) { | ||
| // Block End | ||
| $this->raw = substr($this->raw, strLen($matches[0])); | ||
| break; | ||
| } elseif (preg_match("/^\)[\s\r\n]*;[\s\r\n]*/s", $this->raw, $matches)) { | ||
| // Array End | ||
| $this->raw = substr($this->raw, strLen($matches[0])); | ||
| $temp[$key][] = $temparray; | ||
| $temparray = Array(); | ||
| $array = false; | ||
| $key = ""; | ||
| } elseif (($key != "") and preg_match("/^\([\s\r\n]*/s", $this->raw, $matches)) { | ||
| // Array Start | ||
| $this->raw = substr($this->raw, strLen($matches[0])); | ||
| $array = true; | ||
| } elseif (($key != "") and preg_match("/^\{[\s\r\n]*/s", $this->raw, $matches)) { | ||
| // Block | ||
| $this->raw = substr($this->raw, strLen($matches[0])); | ||
| $temp[$key][] = $this->parse(); | ||
| $key = ""; | ||
| } elseif ($array and ($key != "") and preg_match("/^(?:(?:\"(.*?)(?<!\\\\)\")|(?:([^\s]*)))[\s\r\n]*,?[\s\r\n]*/s", $this->raw, $matches)) { | ||
| // Array Value | ||
| $this->raw = substr($this->raw, strLen($matches[0])); | ||
| $val = $matches[1]; | ||
| if ($val == "") { | ||
| $val = $matches[2]; | ||
| } | ||
| $temparray[] = stripslashes($val); | ||
| } elseif (($key != "") and preg_match("/^(?:=[\s\r\n]*)?(?:(?:\"(.*?)(?<!\\\\)\")|(?:([^\s]*)))[\s\r\n]*;[\s\r\n]*/s", $this->raw, $matches)) { | ||
| // Value | ||
| $this->raw = substr($this->raw, strLen($matches[0])); | ||
| $val = $matches[1]; | ||
| if ($val == "") { | ||
| $val = $matches[2]; | ||
| } | ||
| $temp[$key][] = stripslashes($val); | ||
| $key = ""; | ||
| } elseif (preg_match("/^(?:(?:\"(.+?)(?<!\\\\)\")|(?:([^\s]*)))[\s\r\n]*/s", $this->raw, $matches)) { | ||
| // Key | ||
| $this->raw = substr($this->raw, strLen($matches[0])); | ||
| $key = $matches[1]; | ||
| if ($key == "") { | ||
| $key = $matches[2]; | ||
| } | ||
| } else { | ||
| // Error | ||
| $temp["parse_error"] = $this->raw; | ||
| $this->raw = ""; | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| foreach (array_keys($temp) as $key) { | ||
| if (count($temp[$key]) == 1) { | ||
| $temp[$key] = $temp[$key][0]; | ||
| } | ||
| } | ||
|
|
||
| if ($raw != "") { | ||
| $this->data = $temp; | ||
| return $this->data; | ||
| } else { | ||
| return $temp; | ||
| } | ||
| } | ||
|
|
||
| function parsefile($filename = "") { | ||
|
|
||
| if ($filename != "") { | ||
| if (file_exists($filename) and is_readable($filename)) { | ||
| $this->raw = file_get_contents($filename); | ||
| } | ||
| } | ||
|
|
||
| $this->parse($this->raw); | ||
| return $this->data; | ||
| } | ||
|
|
||
| function getval($path, $array = null) { | ||
| $temp = $path; | ||
| $parts = Array(); | ||
| $ret = Array(); | ||
|
|
||
| if (is_null($array)) { | ||
| $ret = $this->data; | ||
| } else { | ||
| $ret = $array; | ||
| } | ||
|
|
||
| if (substr($temp, 0, 1) == "/") { | ||
| $temp = substr($temp, 1); | ||
| } | ||
| if (substr($temp, -1) != "/") { | ||
| $temp = $temp . "/"; | ||
| } | ||
|
|
||
| while ($temp != "") { | ||
| if (preg_match("/(?:(?:\"(.*?)(?<!\\\\)\")|(?:([^\/\r\n\s]*)))\//s", $temp, $matches)) { | ||
| $temp = substr($temp, strLen($matches[0])); | ||
| if ($matches[1] != "") { | ||
| $parts[] = $matches[1]; | ||
| } else { | ||
| $parts[] = $matches[2]; | ||
| } | ||
| } else { | ||
| $parts['error'] = $temp; | ||
| break; | ||
| } | ||
| } | ||
|
|
||
| for ($i=0; $i<count($parts); $i++) { | ||
| $found = false; | ||
| if (!is_array($ret)) { unset($ret); break; } | ||
| foreach (array_keys($ret) as $key) { | ||
| if (strtolower($key) == strtolower($parts[$i])) { | ||
| $parts[$i] = $key; | ||
| $found = true; | ||
| } | ||
| } | ||
| if (!$found) { unset($ret); break; } | ||
| $ret = $ret[$parts[$i]]; | ||
| if (($i < count($parts) - 1) and isset($ret[0])) { | ||
| $ret = $ret[0]; | ||
| } | ||
| } | ||
|
|
||
| return $ret; | ||
| } | ||
| } | ||
|
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| $db = parse_data($contents); | ||
|
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| print_r($db); | ||
|
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| $x3db = new X3SaxDB(); | ||
| $data = $x3db->parsefile("data/x3.db"); | ||
| // $data == copy of $x3db->data | ||
| var_dump($x3db->data); | ||
| var_dump($x3db->getval("/NickServ/Jobe/email_addr")); | ||
| ?> | ||
| </pre> | ||
|
|