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Viewing changes to plugin/substr_functions/substr_functions.cc

  • Committer: Brian Aker
  • Date: 2010-03-19 01:45:39 UTC
  • mto: This revision was merged to the branch mainline in revision 1362.
  • Revision ID: brian@gaz-20100319014539-jv38vkd8h9a4axzr
Another pass through the interface...

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plugin/substr_functions/substr_functions.cc
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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 *  vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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 *
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 *  Copyright (C) 2008 Sun Microsystems, Inc.
 
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 *  Copyright (C) 2008 Sun Microsystems
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 *  Copyright (C) 2010 Stewart Smith
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 *
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 *  This program is free software; you can redistribute it and/or modify
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#include "config.h"
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#include <drizzled/plugin/function.h>
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#include <algorithm>
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#include <drizzled/charset_info.h>
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#include <drizzled/function/str/strfunc.h>
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#include <drizzled/plugin/function.h>
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using namespace std;
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using namespace drizzled;
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#include <drizzled/function/str/strfunc.h>
 
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class SubstrFunction :public Item_str_func
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{
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  String tmp_value;
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      (args[1]->unsigned_flag && ((uint64_t) start > INT32_MAX)))
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    return &my_empty_string;
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  start= ((start < 0) ?
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          static_cast<int64_t>(res->numchars() + start)
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          : start - 1);
 
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  start= ((start < 0) ? res->numchars() + start : start - 1);
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  start= res->charpos((int) start);
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  if ((start < 0) || ((uint) start + 1 > res->length()))
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    return &my_empty_string;
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plugin::Create_function<SubstrFunction> *substr_function= NULL;
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plugin::Create_function<SubstrIndexFunction> *substr_index_function= NULL;
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static int initialize(drizzled::module::Context &context)
 
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static int initialize(drizzled::plugin::Registry &registry)
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{
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  substr_function= new plugin::Create_function<SubstrFunction>("substr");
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  substr_index_function= new plugin::Create_function<SubstrIndexFunction>("substring_index");
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  context.add(substr_function);
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  context.add(substr_index_function);
 
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  registry.add(substr_function);
 
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  registry.add(substr_index_function);
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  return 0;
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}
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static int finalize(drizzled::plugin::Registry &registry)
 
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{
 
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   registry.remove(substr_function);
 
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   registry.remove(substr_index_function);
 
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   delete substr_function;
 
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   delete substr_index_function;
 
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   return 0;
 
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}
 
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DRIZZLE_DECLARE_PLUGIN
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{
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  DRIZZLE_VERSION_ID,
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  "SUBSTR and SUBSTR",
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  PLUGIN_LICENSE_GPL,
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  initialize, /* Plugin Init */
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  NULL,   /* depends */
 
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  finalize,   /* Plugin Deinit */
 
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  NULL,   /* system variables */
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  NULL    /* config options */
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}
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DRIZZLE_DECLARE_PLUGIN_END;