public string ParseCourseExamTimeFromHtmlString(string HtmlString)
{
try
{
string startTag = "<TR ALIGN=\"yes\" VALIGN=\"yes\" bgcolor=#99CCFF>";
int start = HtmlString.IndexOf(startTag) + startTag.Length;
string stopTag = "<td align=left width=40%";
string tempString = HtmlString.Substring(start);
int stop = tempString.IndexOf(stopTag);
string examTimeString = tempString.Substring(0, stop);
// get date
HtmlParser hp = new HtmlParser();
string dateOfExam = hp.GetStringInNextTag(examTimeString, "td");
int startIndex = examTimeString.IndexOf(dateOfExam);
examTimeString = examTimeString.Substring(startIndex + dateOfExam.Length + 5);
// bypass day
string timeOfExam = hp.GetStringInNextTag(examTimeString, "td");
startIndex = examTimeString.IndexOf(timeOfExam);
examTimeString = examTimeString.Substring(startIndex + timeOfExam.Length + 5);
// get date
timeOfExam = hp.GetStringInNextTag(examTimeString, "td");
return dateOfExam.Trim() + " " + timeOfExam.Trim();
}
catch
{
return "no exam";
}
}
public Course ParseCourseInformationFromHtmlString(string HtmlString)
{
Course courseToReturn = new Course();
Index currentIndex = null;
IndexRow currentIndexRow;
string FinalTable;
try
{
// process coursename
string courseNameStartTag = "<TD WIDTH=\"100\"><B><FONT COLOR=#0000FF>";
int courseNameStart = HtmlString.IndexOf(courseNameStartTag) + courseNameStartTag.Length;
string courseNameStopTag = "</FONT>";
string tempString = HtmlString.Substring(courseNameStart);
int courseNameStop = tempString.IndexOf(courseNameStopTag);
courseToReturn.CourseCode = tempString.Substring(0, courseNameStop);
// process course title
string courseTitleStartTag = "<TD WIDTH=\"500\"><B><FONT COLOR=#0000FF>";
int courseTitleStart = HtmlString.IndexOf(courseTitleStartTag) + courseTitleStartTag.Length;
string courseTitleStopTag = "</FONT>";
tempString = HtmlString.Substring(courseTitleStart);
int courseTitleStop = tempString.IndexOf(courseTitleStopTag);
courseToReturn.CourseName = tempString.Substring(0, courseTitleStop);
// process table information start
// firstly extract tables
string tableStartTag = "<TABLE border>";
int tableStart = HtmlString.IndexOf(tableStartTag) + tableStartTag.Length;
string tableStopTag = "</TABLE>";
tempString = HtmlString.Substring(tableStart);
int tableStop = tempString.LastIndexOf(tableStopTag);
FinalTable = tempString.Substring(0, tableStop);
}
catch
{
return null;
}
// deal with line break
FinalTable = Regex.Replace(FinalTable, @"[\n\r]", "");
HtmlParser hp1 = new HtmlParser();
foreach (string row in hp1.GetTableRows(FinalTable))
{
HtmlParser hp2 = new HtmlParser();
currentIndexRow = new IndexRow();
int cellCount = 0;
foreach (string cell in hp2.GetTableCells(row))
{
// if this is a new index, add a new index
if (cellCount == 0 && !String.IsNullOrEmpty(cell))
{
currentIndex = new Index();
currentIndex.IndexNumber = String.Copy(cell);
courseToReturn.addIndex(currentIndex);
}
else
{
switch (cellCount)
{
case 1: // type information
currentIndexRow.Type = cell;
break;
case 2: //group information
currentIndex.Group = cell;
break;
case 3: // day information
currentIndexRow.Day = (WeekDays)Enum.Parse(typeof(WeekDays), cell);
break;
case 4: // time information
string[] temp = cell.Split('-');
currentIndexRow.StartTime = temp[0];
currentIndexRow.EndTime = temp[1];
break;
case 5: // venue information
currentIndexRow.Venue = cell;
break;
case 6: // week information
parseWeekInfo(currentIndexRow.IsScheduledInWeek, cell);
break;
}
}
cellCount++;
}
// finished one row, add the row into index
if (currentIndex != null)
currentIndex.addIndexRow(currentIndexRow);
}
return courseToReturn;
}