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// Set your module name collectly.
var this_file_name = 'MD.jse';  // Notice! If you rename this module file name.
var exports = typeof exports !== 'undefined' ? exports : {};

/////////////////////////////////////////////////////////////////  
// MD.jse  
// Markdown Format simple Parser  (not consider complex format)  
//   19/12/17 memoru  
//   
//   static method  
//     - MD.converttoJSON(str)  
//   Dependency  
//     - underscore.js  
//     - StringUtil.jse  

(function(){

var CLS_ = {};
CLS_.module_name = this_file_name;

// local const  
var CONS_TABLE_HEAD_POS = 1;
var CONS_TABLE_HEAD = 'no';
var CONS_FORMAT_FNAME = '.*';
var CONS_FORMAT_SHEETID = '.*';
var CONS_TABLE_COLSIZE = 3;

// local method 
// 
var check_firstLine = function(line){
  /** To check Format Sheet ID */
  var ret = false;
  var check_ary = line.split(':');
  if(check_ary.length == 2){
    check_ary = _.map(check_ary, function(elm){
      return StringUtil.trim(elm);
    })
    if(check_line[0] === CONS_FORMAT_FNAME) {
      if(check_line[1] === CONS_FORMAT_SHEETID) {
        ret = true;
      }
    }
  }
  return ret
}

var check_lineCategory = function(line){
  /** categorize line context */
  var ret = '';
  var regx_header = new RegExp('\\s*#{1,4}');
  var regx_table  = new RegExp('\\s*\\|');
  var regx_spaces  = new RegExp('^\\s*$','m');
  var regx_numeric  = new RegExp('\\d+');
  //
  if (regx_spaces.test(line)){
    ret = 'spaces';
  } else if(regx_header.test(line)){
    ret = 'h1234';
  } else if(regx_table.test(line)){
    if(!StringUtil.contains(line, '-')){
      var check_col = line.split('|');
      if(check_col.length >= 2){
        var first_colStr = StringUtil.trim(check_col[CONS_TABLE_HEAD_POS]);
        if(first_colStr === CONS_TABLE_HEAD){
          ret = 'th';
        } else if(regx_numeric.test(first_colStr)){
          ret = 'tr';
        } else {
          ret = 'tr-space'; // no column is space.
        }
      } else {
        ret = 'tr-column-num-error'; // not target column number
      }
    } else {
      ret = 'thr'; // table border inside a table
    }
  } else {
    ret = 'pre';  // such as <pre> or <p> or <li>
  }
  //console.log('L080 : ' + ret)
  return ret
}

var convertto_headerObj = function(line,idx){
  /** analyze header's statement */
  var ret = [];
  var regx = new RegExp('#{1,4}\\s+');
  if(!StringUtil.contains(line, ':')){
    line = line + ' : '
  }
  var hlevel = line.match(/#{1,4}\s+/);
  var ary = line.split(':');
  ary = _.map(ary,function(elm){
    elm = elm.replace(regx,'');
    return StringUtil.trim(elm);
  })
  // array size is equal 2 and array is of key and value 
  var level = StringUtil.trim(hlevel[0]).length
  if(ary.length == 2){
    ret = {
      line_no : idx,
      level : '' + level,
      header_ary : ary
    }
  }
  return ret
}

var convertto_colums = function(line){
  /** convert a table row to an arrray of columns */
  var ret = [];
  //line = StringUtil.chopDouble(StringUtil.trim(line),1);
  var ary = line.split('|');
  ary = _.map(ary,function(elm){
    return StringUtil.trim(elm);
  })
  if(ary.length >= CONS_TABLE_COLSIZE){
    // check Table COLSIZE by config setting
    ret = _.initial(_.rest(ary));
  }
  return ret
}

var convertfrom_headersObj = function(headers){
  /** convert headers composed into an arrray of 
   *  header line no and composed header 
   */
  var len = headers.length;
  var pre_level = 0;
  var ary = [];
  var h1234_buff = [];
  var obj = {};
  for(var i = 0; i < len; i++){
    if(pre_level < headers[i].level){
      h1234_buff.push(headers[i].header_ary[0]);
    } else if(pre_level >= headers[i].level) {
      h1234_buff = _.first(h1234_buff, headers[i].level-1);
      h1234_buff.push(headers[i].header_ary[0]);
    }
    obj = {
      line_no : headers[i].line_no,
      composedHeader : h1234_buff.join('.')
    }
    ary.push(obj);
    pre_level = headers[i].level;
  }
  var ret_ary = _.map(ary, function(elm,idx){
    var buf = {};
    buf[elm['line_no']] = elm['composedHeader'];
    return buf
  })
  return ret_ary
}

var extend_arrayOfObj = function(ary){
  var ret = {};
  var len = ary.length;
  for(var i = 0; i < len; i++){
    var key_ = _.keys(ary[i])[0]
    var val_ = ary[i][key_]
    ret[key_] = val_
  }
  return ret
}

var convertto_object = function(lines, i_start,line_code){
  var ret_obj = {};
  var len = lines.length;
  var target_line_no = 0;
  var target_line_no_headOfRows = 0;
  var col_head = [];
  var col_row = [];
  var buff_h1234 = [];
  var buff_obj = {};
  var buff_paragraph = [];
  var buff_rows = [];
  var row_obj = {}; // for row
  var line_category = '';
  for(var i = i_start; i < len; i++){
    line_category = check_lineCategory(lines[i])
    //console.log('L181 : line_category = ' + line_category);
    //console.log('L182 : line = ' + lines[i]);
    // 
    // process for each category
    if(line_category === 'h1234'){
      if(buff_paragraph.length !== 0){
        buff_obj[target_line_no + '.contents'] = buff_paragraph.join(line_code);
        buff_paragraph.length = 0;
      }
      if(buff_rows.length !== 0){
        buff_obj[target_line_no + '.rows'] = [].concat(buff_rows);
        buff_rows.length = 0;
      }
      var header_obj = convertto_headerObj(lines[i],i);
      // console.log('L195 : ');
      // console.dir(header_obj);
      target_line_no = header_obj.line_no;
      buff_h1234.push(header_obj);
      buff_obj[header_obj.line_no] = header_obj.header_ary[1];
    }
    if(line_category === 'th'){
      if(buff_paragraph.length !== 0){
        buff_obj[target_line_no + '.contents'] = buff_paragraph.join(line_code);
        buff_paragraph.length = 0;
      }
      col_head = convertto_colums(lines[i]);
    }
    if(line_category === 'tr'){
      col_row = convertto_colums(lines[i]);
      if(col_head.length == col_row.length){
        row_obj = _.object(col_head, col_row);
        buff_rows.push(row_obj);
      }
    }
    if(line_category == 'pre'){
      buff_paragraph.push(lines[i]);
    }
  }
  if(buff_paragraph.length !== 0){
    buff_obj[target_line_no + '.contents'] = buff_paragraph.join(line_code);
  }
  if(buff_rows.length !== 0){
    buff_obj[target_line_no + '.rows'] = [].concat(buff_rows);
  }
  ret_obj = {
    'headers_ary' : buff_h1234,
    'converted_obj' : buff_obj
  }
  return ret_obj
}

var generate_dictOfHeader = function(ary){
  var ary_headersOfLineNoAndComposedName = convertfrom_headersObj(ary);
  //console.log('L234 : ary' + ary_headersOfLineNoAndComposedName);
  var dict = extend_arrayOfObj(ary_headersOfLineNoAndComposedName);
  _.defaults(dict, {'0': 'first_p'});
  return dict
}

var reorganize_data = function(obj,dict){
  var ret = {}
  for(var key_ in obj){
    if(obj.hasOwnProperty(key_)){
      var buff = key_.split('.');
      var line_no = buff[0];
      var composedHead = dict[line_no];
      if(buff.length == 2){
        composedHead = composedHead + '.' + buff[1];
      }
    }
    ret[composedHead] = obj[key_]
  }
  return ret
}

// static method
// 
CLS_.converttoJSON = function(lines, line_code, isFormatCheck, CONFIG){
  var ret_obj = {};
  // set config
  CONS_TABLE_HEAD_POS = typeof CONFIG.TABLE_HEAD_POS !== 'undefined'? CONFIG.TABLE_HEAD_POS : 1;
  CONS_TABLE_HEAD = typeof CONFIG.TABLE_HEAD !== 'undefined'? CONFIG.TABLE_HEAD : 'no';
  CONS_FORMAT_FNAME = typeof CONFIG.FORMAT_FNAME !== 'undefined'? CONFIG.FORMAT_FNAME : '.*';
  CONS_FORMAT_SHEETID = typeof CONFIG.FORMAT_SHEETID !== 'undefined'? CONFIG.FORMAT_SHEETID : '.*';
  CONS_TABLE_COLSIZE = typeof CONFIG.TABLE_COLSIZE !== 'undefined'? CONFIG.TABLE_COLSIZE : 3;
  // 
  var dict_headerKeys = {};
  var converted = {};
  var ary_h1234 = [];
  var obj_converted = {};
  var line_category = '';
  var i_start = 0;
  if(isFormatCheck) {
    i_start = 1;
  }
  converted = convertto_object(lines, i_start, line_code);
  obj_converted = converted['converted_obj'];
  ary_h1234 = converted['headers_ary'];
  // 
  // organize return object
  var dict_headerKeys = generate_dictOfHeader(ary_h1234);
  ret_obj = reorganize_data(obj_converted,dict_headerKeys);
  //console.log('L283');
  //console.dir(ret_obj);
  return ret_obj
}

CLS_.doDebug = function(){
  WScript.Echo('------------ debug start');
  WScript.Echo('module name = ' + MD.module_name);
}

exports.MD = CLS_;

}());



// --------------------------------------------------- do debug
var doDebugMain = function(){
  var CONFIG = typeof CONFIG !== 'undefined' ? CONFIG : {};
  CONFIG.IS_CHECKED_FORM = false;
  CONFIG.FORMAT_FNAME = 'FORMAT';
  CONFIG.FORMAT_SHEETID = 'TD';
  CONFIG.TABLE_HEAD = 'no';
  CONFIG.TABLE_HEAD_POS = 1;
  CONFIG.TABLE_COLSIZE = 7;
  
  var form_target = function(str, line_code){
    /* unifiy linecode and rtrim */
    if(typeof line_code === 'undefined') line_code = '\r\n';
    str = StringUtil.unifyLineCode(str, line_code)
    var lines = str.split(line_code);
    return _.map(lines, function(elm, idx){
      return StringUtil.rtrim(elm);
    })
  }
  
  console.log('------------------------- start //');
  console.log('APP : ' + CONFIG.APP_NAME);
  var isCheckedForm = typeof CONFIG.IS_CHECKED_FORM !== 'undefined' ? CONFIG.IS_CHECKED_FORM: false;
  var target_ = CLIP.get_clipboard();
  //console.log('target_ = ' + target_);
  var lines_formatted = [];
  var line_code = '\r\n';
  lines_formatted = form_target(target_, line_code);
  var obj = MD.converttoJSON(lines_formatted, line_code, isCheckedForm, CONFIG);
  console.dir(obj);
}

// --------------------------------------------------- entry point
function is_module(this_module_name){
  // reference : https://senooken.jp/blog/2016/08/20/
  //             https://gist.github.com/lamsh/f16ee7032051868844fc081926bf0854
  var isWSH = (typeof(WScript) !== "undefined" && WScript.ScriptName === this_module_name);
  var isEditor = (typeof(Editor) !== "undefined" && Editor.ExpandParameter('$f') === this_module_name);
  var isBrowser = (typeof(alert) !== "undefined");
  return (isWSH || isEditor || isBrowser)
}

if(typeof(Editor) !== 'undefined'){
  if (is_module(this_file_name)){
    null;
  }
} else {
  if (is_module(this_file_name)){
    var CONS_COMMON_LIBPATH = 'G:\\Users\\sakai\\AppData\\Roaming\\sakura';
    var CONS_COMMON_LIBS = [
      "./lib/json2.js",
      "./lib/underscore.js",
      "./lib/StringUtil.jse",
      "./lib/Clipboard3.jse",
      "./lib/DateUtil.jse"
    ]
    // 
    // load external libraries
    var check_env = function(){
      // set env_name for targetting wsh, sakura, node
      var env_name = '';
      if (typeof(WScript) !== "undefined") env_name = 'wsh';
      if (typeof(Editor) !== "undefined") env_name = 'sakura';
      if (typeof(alert) !== "undefined") {env_name = 'browser';}
      else if (typeof(console) !== "undefined") env_name = 'node';
      return env_name;
    }
    var flag = check_env();
    var exports = typeof exports !== 'undefined' ? exports : {};
    //
    if(flag == "wsh"||flag == "sakura"){
      var objFS = new ActiveXObject("Scripting.FileSystemObject");
      var lib_path = CONS_COMMON_LIBPATH ? CONS_COMMON_LIBPATH: './';
      // require common module
      with({
        libs : CONS_COMMON_LIBS, 
        get_moduleCode : function(path){
          return objFS.OpenTextFile(path,1).ReadAll();
        }
      }) {
        var len = libs.length;
        for (var i = 0; i < len; i++){
          try {
            var module_path = objFS.BuildPath(lib_path,libs[i]);
            //WScript.Echo( module_path );
            eval(get_moduleCode(module_path));
          } catch (e) {
            //WScript.Echo( e.description || e.message || "error" );
            null;
          }
        }
      };
      objFS = null;
    }
    var CONFIG = typeof CONFIG !== 'undefined' ? CONFIG : {};
    var debug_mode = typeof CONFIG.DEBUG_MODE !== 'undefined' ? CONFIG.DEBUG_MODE: true ;
    var DateUtil = exports.DateUtil;
    // pretend console.log 
    var console = typeof console !== 'undefined' ? console : {};
    if(console){
      if(debug_mode){
        if(flag == "sakura"){
          console.log=function(str){
            var log_str = "[DEBUG] $d$t ($f) > " + str;
            Editor.TraceOut(log_str,1)
          }
          console.info=function(str){
            var log_str = "[INFO] $d$t ($f) > " + str;
            Editor.TraceOut(log_str,1)
          }
          console.dir = function(obj){
            var str = "[DUMP] $d$t ($f) > " + JSON.stringify(obj);
            Editor.TraceOut(str,1);
          }
        };
        if(flag == "wsh"){
          console.info = function(str){WScript.Echo('[INFO] ' + DateUtil.get_todayString()  + ' (' + DateUtil.get_todayDayString() + ') ' + DateUtil.get_nowTimeString() + ' > ' + str)};
          console.log = function(str){WScript.Echo('[DEBUG] ' + DateUtil.get_todayString()  + ' (' + DateUtil.get_todayDayString() + ') ' + DateUtil.get_nowTimeString() + ' > ' + str)};
          console.dir = function(obj){ 
            var str = JSON.stringify(obj);
            WScript.Echo('[DUMP] ' + str);
          }
        }
      }else{
        if(flag == "wsh")  console.info = function(str){WScript.Echo(str)};
        if(flag == "sakura")  console.info =function(str){Editor.InfoMsg(str)};
        if(flag == "wsh")  console.log = function(str){null;};
        if(flag == "sakura")  console.log = function(str){null;};
        if(flag == "wsh")  console.dir = function(str){null;};
        if(flag == "sakura")  console.dir = function(str){null;};
      }
    }
    // 
    CONFIG.debug_mode = true;
    var MD = exports.MD;
    var _ = exports._;
    var StringUtil = exports.StringUtil;
    var CLIP = exports.CLIP;
    console.dir(exports);
    doDebugMain();
  } else {
    console.log('Test on IE11')
  }
}