public BulletIndent(string indent = null, BulletIndent currentBulletIndent = null, int?level = null, List <string> bulletStyles = null)
{
if (indent == null)
{
// indicates an empty BulletIndent
return;
}
this.bulletStyles = bulletStyles;
string currentIndent = currentBulletIndent == null ? "" : currentBulletIndent.indent;
this.indent = indent;
if (currentBulletIndent == null)
{
// establish the first level
this.level = level == null ? 0 : level;
this.index = 0;
this.parent = null;
}
else if (this.level == level || indent == currentIndent)
{
// staying on the same level
this.level = currentBulletIndent.level;
this.index = currentBulletIndent.index + 1;
this.parent = currentBulletIndent.parent;
this.styleInitializerLevel = currentBulletIndent.styleInitializerLevel;
}
else
{
// search for the same level
BulletIndent matchingLevel = currentBulletIndent.parent; // used to find a previous level
while (matchingLevel != null)
{
if ((level != null && matchingLevel.level == level) || indent == matchingLevel.indent)
{
// found a matching level, so this one is a continuation
this.level = matchingLevel.level;
this.index = matchingLevel.index + 1;
this.parent = matchingLevel.parent;
this.styleInitializerLevel = this.level; // don't honor style initializers above this level
break;
}
else
{
matchingLevel = matchingLevel.parent;
}
}
if (matchingLevel == null)
{
// create a new level
this.level = level == null ? (currentBulletIndent.level + 1) : level;
this.index = 0;
this.parent = currentBulletIndent;
this.styleInitializerLevel = currentBulletIndent.styleInitializerLevel;
}
}
}
public BulletIndent clone()
{
// clone a BulletIndent that reflects the state
BulletIndent cloneBulletIndent = new BulletIndent();
cloneBulletIndent.level = this.level;
cloneBulletIndent.index = this.index;
cloneBulletIndent.indent = this.indent;
cloneBulletIndent.parent = this.parent;
cloneBulletIndent.lastBullet = this.lastBullet;
cloneBulletIndent.bulletStyles = this.bulletStyles;
cloneBulletIndent.styleInitializerLevel = this.styleInitializerLevel;
return(cloneBulletIndent);
}
public string getBullet()
{
string bullet;
List <string> bulletStyles = this.bulletStyles;
if (bulletStyles == null || bulletStyles.Count == 0)
{
bullet = "(" + this.level + "." + this.index + ")"; // TODO: default bullet style
}
else
{
string bulletStyleText = bulletStyles[(int)(this.level < bulletStyles.Count ? this.level : bulletStyles.Count - 1)];
// support multiple numbers at one level by creating an array of styles that contain 0 or 1 number/letter/roman
string concatenatedBullet = "";
string[] styleArray = Regex.Replace(bulletStyleText, @"(.*?(i\:[ivxldcm]+|i|I\:[IVXLDCM]+|I|1\:\d+|1|a\:[a-z]+|a|A\:[A-Z]+|A).\S*?)", "$1").Split('\x02');
BulletIndent currentBulletLevel = this;
for (int i = styleArray.Length - 1; i >= 0 && currentBulletLevel != null; i--)
{
string bulletStyle = styleArray[i];
string padding = "";
if (new Regex(@"^ +").IsMatch(bulletStyle))
{
padding = Regex.Replace(bulletStyle, @"^( +).*$", "$1");
bulletStyle = bulletStyle.Substring(padding.Length);
}
string prefix = "";
string postfix = "";
string bulletType = "";
// TODO: support styles like 'I.a.1.i', '1.1.1.1' or even '1:10.1.1.1'
// TODO: consider allowing \: and \\ for legitimate:
// support styles like 'i', 'i:iv', 'I', 'I:LV', '1', '1:13', 'a', 'a:d', 'A', 'A:AF'
if (new Regex(@"^.*(i\:[ivxldcm]+|i|I\:[IVXLDCM]+|I|1\:\d+|1|a\:[a-z]+|a|A\:[A-Z]+|A).*$", RegexOptions.Singleline).IsMatch(bulletStyle))
{
prefix = Regex.Replace(bulletStyle, @"^(.*?)(i\:[ivxldcm]+|i|I\:[IVXLDCM]+|I|1\:\d+|1|a\:[a-z]+|a|A\:[A-Z]+|A).*$", "$1");
postfix = Regex.Replace(bulletStyle, @"^.*?(i\:[ivxldcm]+|i|I\:[IVXLDCM]+|I|1\:\d+|1|a\:[a-z]+|a|A\:[A-Z]+|A)(.*)$", "$2");
bulletStyle = Regex.Replace(bulletStyle, @"^.*?(i\:[ivxldcm]+|i|I\:[IVXLDCM]+|I|1\:\d+|1|a\:[a-z]+|a|A\:[A-Z]+|A).*$", "$1");
bulletType = bulletStyle.Substring(0, 1);
if (bulletStyle.Contains(":"))
{
if (this.styleInitializerLevel != null && currentBulletLevel.level > this.styleInitializerLevel)
{
// ignore the style initializer because we've already popped back to a level above this
bulletStyle = bulletType;
}
else
{
// capture the style initializer, which is the value after the ":"
bulletStyle = bulletStyle.Substring(bulletStyle.IndexOf(":") + 1);
}
}
}
else if (bulletStyle.Length > 1)
{
if ("(<#$%*.-=+`~[{_=+|'\"".Contains(bulletStyle.Substring(0, 1)))
{
prefix = bulletStyle.Substring(0, 1);
bulletStyle = bulletStyle.Substring(1);
}
if (")>*]}.`~*-_=+|:'\"".Contains(bulletStyle.Substring(bulletStyle.Length - 1, 1)))
{
postfix = bulletStyle.Substring(bulletStyle.Length - 1, 1);
bulletStyle = bulletStyle.Substring(0, bulletStyle.Length - 1);
}
}
bullet = bulletStyle;
if (bulletType.Length == 1)
{
switch (bulletType)
{
case "I":
bullet = this.numberToRoman(currentBulletLevel.index + (bulletStyle != "I" ? this.romanToNumber(bulletStyle) : 1));
break;
case "i":
bullet = this.numberToRoman(currentBulletLevel.index + (bulletStyle != "i" ? this.romanToNumber(bulletStyle) : 1)).ToLower();
break;
case "1":
bullet = (currentBulletLevel.index + (bulletStyle != "1" ? Int32.Parse(bulletStyle) : 1)).ToString();
break;
case "A":
case "a":
bullet = this.numberToAlphabet(currentBulletLevel.index + (bulletStyle.ToLower() != "a" ? this.alphabetToNumber(bulletStyle) : 1));
if (bulletType == "a")
{
bullet = bullet.ToLower();
}
break;
}
if (padding.Length > 0 && bullet.Length < (padding.Length + 1))
{
prefix = padding.Substring(0, padding.Length - bullet.Length + 1) + prefix;
}
bullet = prefix + bullet + postfix;
currentBulletLevel = currentBulletLevel.parent;
}
concatenatedBullet = bullet + concatenatedBullet;
}
bullet = concatenatedBullet;
}
this.lastBullet = this.indent + bullet.Replace("\x01", "");
return(bullet);
}