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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
 *            formattools.cc
 *
 *  Mon Oct 27 09:34:46 CET 2008
 *  Copyright 2008 Bent Bisballe Nyeng
 *  deva@aasimon.org
 ****************************************************************************/

/*
 *  This file is part of Pracro.
 *
 *  Pracro is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  Pracro is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Pracro; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
 */
#include "formattools.h"
#include "mltokenizer.h"
#include "luaformatmapper.h"

/**
 * Replace all ocurrences of c with cc.
 */
static std::string escape_string(std::string str, char c)
{
  std::string out;
  for(size_t i = 0; i < str.length(); i++) {
    if(str[i] == c) out += str[i];
    out += str[i];
  }
  return out;
}

/**
 * Replace all ocurrences of cc with c.
 */
static std::string deescape_string(std::string str, char c)
{
  std::string out;
  for(size_t i = 0; i < str.length(); i++) {
    if(i < str.length() - 1 && str[i] == c && str[i + 1] == c) {
      out += str[i];
      i++; // Skip the next character
    } else {
      out += str[i];
    }
  }
  return out;
}

std::string escape_multilist_string(std::string str)
{
  return escape_string(escape_string(str, '{'), '}');
}

std::string escape_resume_string(std::string str)
{
  return escape_string(escape_string(str, '['), ']');
}

Fields get_multilist_values(std::string mlvalue)
{
  std::map<std::string, std::string> values;

  std::vector< mltoken_t > tokens = mltokenize(mlvalue);
  std::vector< mltoken_t >::iterator i = tokens.begin();
  while(i != tokens.end()) {
    if(i->type == MLTT_VALUE) values[i->name] = i->value;
    i++;
  }

  return values;
}

std::string render_multilist_string(std::string mlvalue)
{
  std::string output;

  std::vector< mltoken_t > tokens = mltokenize(mlvalue);
  std::vector< mltoken_t >::iterator i = tokens.begin();
  while(i != tokens.end()) {
    output += i->value;
    i++;
  }

  return output;
}

std::string render_resume_string(std::string str, Fields &fields)
{
  std::string out;

  LUAFormatMapper mapper(fields);

  // Replace ${foo|bar} with bar
  for(size_t i = 0; i < str.length(); i++) {
    if(str[i] == '$') {
      if(i < str.length() - 2 &&
         str[i+1] == '[' && str[i+2] != '[') {
        // We are in a key/value

        // Look for end marker
        size_t j;
        for(j = i + 2; j < str.length(); j++) {
          if(str[j] == ']' && str[j + 1] != ']') {
            // We have an end marker
            break;
          }
        }

        std::string luaprogram = str.substr(i + 2, j - (i + 2));
        std::string value = mapper.map(luaprogram);
        out += escape_resume_string(value);

        i = j;

      } else out += str[i];
    } else {
      out += str[i];
    }
  }
  
  return deescape_string(deescape_string(out, '['), ']');
}

#ifdef TEST_FORMATTOOLS

int main()
{
  Fields fields;
  fields["dingo"] = "[[meget dyr]]";
  fields["fnuld"] = "Zimbabwe";
  fields["mlstring"] =
    "Ladidaa ${myname|bar} ${{dingo|dyt}} ${dims|{{dimmer}}}.\n"
    "Ladidaa ${myname|bole} ${{dingo|dyt}} ${dims|[[fillerhejs]]}.\n"
    "Ladidaa ${myname|daske} ${{dingo|dyt}} ${dims|buller}.\n";

  /*
  printf("%s\n", deescape_string(deescape_string("[[] []]", '['), ']').c_str());

  if(escape_multilist_string("${} {{}}") != "${{}} {{{{}}}}") return 1;
  if(escape_resume_string("$[] [[]]") != "$[[]] [[[[]]]]") return 1;
  
  std::string mlstring = "Ladidaa ${myname|bar} ${{dingo|dyt}} ${dims|dulle}.";
  printf("{%s}\n", render_multilist_string(mlstring).c_str());
  */

  std::string resumestring = "Ladidaa \n$["
    "printfmlval(mlstring, ' * ', true, '<p>', 'myname', '</p>', 'PRE', 'dims', 'POST')"
    "] dalidaadoo.";
  printf("{%s}\n", render_resume_string(resumestring, fields).c_str());

  //  std::string resumestring2 = "Ladidaa \n$[printfmlval(mlstring, ' * ', false, '<p>', 'myname', '</p>', 'PRE', 'dims', 'POST')] dalidaadoo.";
  //  printf("{%s}\n", render_resume_string(resumestring2, fields).c_str());
  return 0;
}

#endif/*TEST_FORMATTOOLS*/