public Word(bool editable, string text, TextTemplate tt)
{
IsEditable = editable;
_text = text;
Placeholder = "";
_textTemplate = tt;
}
/// <summary>
/// Return a new Template from the given string
/// </summary>
/// <param name="tmpl"></param>
/// <returns></returns>
public static Template Load(string tmpl, TextTemplate tt)
{
Template template = new Template();
List<IText> textFragments = new List<IText>();
template._stringToFormat = "";
string staticText = "";
IText text;
var prevIndex = 0;
Match m = ParseRegex.Match(tmpl);
while(m.Success)
{
//Non editable text
if (m.Index > 0) //false if the template start with an editable
{
staticText = tmpl.Substring(prevIndex, m.Index - prevIndex);
ParseStaticText(staticText, textFragments, tt);
}
//Editable text
text = textFragments.FirstOrDefault( x => x.IsEditable == true && x.Placeholder == m.Value ); //Search if the placeholder already exists
if(text == null) text = new Word(true, m.Groups["token"].Value, tt); //if not, create a new one
text.Placeholder = m.Value;
textFragments.Add(text);
//escape curly braces to avoid conflicts during the string.Format
template._stringToFormat += staticText.Replace("{", "{{").Replace("}", "}}") + "{" + (textFragments.IndexOf( text )) + "}";
prevIndex = m.Index + m.Length;
m = m.NextMatch();
}
if (prevIndex < tmpl.Length)
{
staticText = tmpl.Substring(prevIndex);
ParseStaticText( staticText, textFragments, tt );
//escape curly braces to avoid conflicts during the string.Format
template._stringToFormat += staticText.Replace( "{", "{{" ).Replace( "}", "}}" );
}
template.TextFragments = new CKReadOnlyListOnIList<IText>(textFragments);
return template;
}
/// <summary>
/// Parse the given static text and split it on new lines
/// </summary>
/// <param name="textFragments"></param>
/// <param name="staticText"></param>
/// <param name="tt"></param>
static void SplitNewlines(List<IText> textFragments, string staticText, TextTemplate tt)
{
IText text;
int newLine = IndexOfNewLine( staticText );
if (newLine > -1)
{
var newLineFragments = staticText.Split( new string[] { "\r\n", "\n" }, StringSplitOptions.None );
for (int i = 0; i < newLineFragments.Length; i++)
{
if (newLineFragments[i].Length > 0)
{
text = new Word(false, newLineFragments[i], tt);
textFragments.Add(text);
}
if (i < newLineFragments.Length - 1) //avoid duplicates new line
textFragments.Add(new NewLine());
}
}
else
{
text = new Word(false, staticText, tt);
textFragments.Add(text);
}
}
/// <summary>
/// Parse the given static text and split it on spaces and new lines
/// </summary>
/// <param name="staticText"></param>
/// <param name="textFragments"></param>
/// <param name="tt"></param>
static void ParseStaticText( string staticText, List<IText> textFragments, TextTemplate tt )
{
int space = staticText.IndexOf( ' ' );
if( space > -1 )
{
var fragments = staticText.Split( new string[] { " " }, StringSplitOptions.None );
for( int i = 0; i < fragments.Length; i++ )
{
if( fragments[i].Length > 0 ) SplitNewlines( textFragments, fragments[i], tt );
if( i < fragments.Length - 1 ) //not add to the end to avoid duplicates whitespaces
textFragments.Add( new WhiteSpace() );
}
}
else
{
SplitNewlines( textFragments, staticText, tt );
}
}