From: Marc Cromme <marc@indexdata.dk>
Date: Mon, 11 Sep 2006 12:46:58 +0000 (+0000)
Subject: first shot at queryparsing experiments added
X-Git-Tag: METAPROXY.1.0.7~70
X-Git-Url: http://sru.miketaylor.org.uk/cgi-bin?a=commitdiff_plain;h=d8d4221f52df91b8a2121c752dd55a9a8131a306;p=metaproxy-moved-to-github.git

first shot at queryparsing experiments added
---

diff --git a/etc/experiment-query-config-translate.php b/etc/experiment-query-config-translate.php
new file mode 100755
index 0000000..57fec67
--- /dev/null
+++ b/etc/experiment-query-config-translate.php
@@ -0,0 +1,137 @@
+#!/usr/bin/php
+<?php
+# Include PEAR::Console_Getopt
+require_once 'Console/Getopt.php';
+
+$command = new Command;
+print_r($command->command());
+
+$config = new Config;
+$config->load($command->config());
+$config->parse();
+
+print("DONE\n");
+exit(0);
+
+
+class Command {
+  private $options;
+  private $command;
+  private $short_format_config = 'hc:s:t:';
+  private $syntax_config = array('ccl', 'cql', 'pqf');
+
+
+  public function __construct() {
+    $args = Console_Getopt::readPHPArgv();
+
+    if ( PEAR::isError($args) ) {
+      fwrite(STDERR,$args->getMessage()."\n");
+      exit(1);
+    }
+    
+    // Compatibility between "php script.php" and "./script.php"
+    if ( realpath($_SERVER['argv'][0]) == __FILE__ ) {
+      $this->options 
+        = Console_Getopt::getOpt($args, $this->short_format_config);
+    } else {
+      $this->options 
+        = Console_Getopt::getOpt2($args, $this->short_format_config);
+    }
+    
+    // Check for invalid options
+    if ( PEAR::isError($this->options) ) {
+      fwrite(STDERR, $this->options->getMessage()."\n");
+      $this->help();
+    }
+    
+    $this->command = array();
+    
+    // Loop through the user provided options
+    foreach ( $this->options[0] as $option ) {
+      switch ( $option[0] ) {
+      case 'h':
+        help();
+        break;
+      case 's':
+        $this->command['syntax'] = $option[1];
+        break;
+      case 't':
+        $this->command['transform'] = $option[1];
+        break;
+     case 'c':
+       $this->command['config'] = $option[1];
+       break;
+      }
+    }
+    
+    // Loop through the user provided options
+    foreach ($this->options[1] as $argument ) {
+      $this->command['query'] .= ' ' . $argument;
+    }
+  }
+
+  
+  public function help() {
+    fwrite(STDERR, "  Usage:\n");
+    fwrite(STDERR, "  ./experiment-query-config-translate.php -s syntax -t transform -c config.xml query\n");
+    fwrite(STDERR, "  Experiment with general query configuration syntax and transformations.\n");
+    fwrite(STDERR, "  -c config.xml XML config file\n");
+    fwrite(STDERR, "  -s syntax     Syntax of source query language, 'ccl', 'cql', 'pqf'\n");
+    fwrite(STDERR, "  -t transform  Syntax of transformed query language, 'ccl', 'cql', 'pqf'\n");
+    fwrite(STDERR, "  -h            Display help\n");
+    fwrite(STDERR, "  query         Valid query in specified syntax\n");  
+    exit(0);
+  }
+
+  public function command() {
+    return $this->command;
+  }
+  
+  public function syntax() {
+    return $this->command['syntax'];
+  }
+  
+  public function transform() {
+    return $this->command['transform'];
+  }
+  
+  public function config() {
+    return $this->command['config'];
+  }
+
+  public function query() {
+    return $this->commamd['query'];
+  }
+  
+}
+
+class Config {
+  private $xml_conf;
+
+  public function load($xml_file){
+    $this->xml_conf = @simplexml_load_file($xml_file) 
+      or die("Unable to load XML config file '" . $xml_file ."'\n"); 
+    $this->xml_conf->registerXPathNamespace('iq', 
+                                            'http://indexdata.com/query');
+  }
+
+  public function parse(){
+    //foreach ($this->xml_conf->xpath('//desc') as $desc) {
+    //echo "$desc\n";
+
+    $namespaces =  $this->xml_conf->getNamespaces(true);
+    foreach ($namespaces as $ns){
+      print("namespace '" . $ns . "'\n");
+    } 
+
+
+    foreach ($this->xml_conf->xpath('//iq:syntax') as $syntax){
+      print("syntax '" . $syntax['name']  . "'\n");
+    }
+   
+    
+    
+  }
+  
+}
+