// perform syntax coloring
void UpdateSyntaxColoring(C1TextRange range)
{
// remove old coloring
_rangeStyles.RemoveRange(range);
var input = range.Text;
// highlight the matches
foreach (Match m in Regex.Matches(input, tagPattern))
{
// select whole tag, make it dark blue
_rangeStyles.Add(new C1RangeStyle(GetRangeAtTextOffset(range.Start, m), brDarkBlue));
// select tag name, make it dark red
var tagName = m.Groups["tagName"];
_rangeStyles.Add(new C1RangeStyle(GetRangeAtTextOffset(range.Start, tagName), brDarkRed));
// select attribute names, make them light red
var attGroup = m.Groups["attName"];
if (attGroup != null)
{
var atts = attGroup.Captures;
for (int i = 0; i < atts.Count; i++)
{
var att = atts[i];
_rangeStyles.Add(new C1RangeStyle(GetRangeAtTextOffset(range.Start, att), brLightRed));
}
}
}
}
/// <summary>
/// Inserts page break to current selection
/// </summary>
internal void InsertPageBreak()
{
C1TextRange range = _editor.Selection;
range.Start.MoveTo(range.End);
range.XmlText = "<br style=\"page-break-before: always\"/>";
}
// perform search and replace using Selection properties
void replaceUsingSelection_Click(object sender, EventArgs e)
{
MessageBox.Show("Replacing 'work' with 'labor' using Selection.");
// re-load document
this.c1Editor1.LoadXml(Properties.Resources.tesla, null);
// strings to search and replace
string search = "work";
string replace = "labor";
// do the work
int count = 0;
int previousStart = 0;
C1TextRange range = this.c1Editor1.CreateRange();
for (int start = 0; ; start += search.Length)
{
// get text (notice new line handling)
string txt = this.c1Editor1.Text;
txt = txt.Replace("\r\n", "\n");
// find text, break when done
start = txt.IndexOf(search, start, StringComparison.OrdinalIgnoreCase);
if (start < 0)
{
break;
}
// select match
// recommended way (better performance): move range relative to its current position
range.Move(start - previousStart, search.Length);
range.Select();
// not recommended way (slower): using the Select method
//this.c1Editor1.Select(start, search.Length);
// tell user we're about to replace
string msg = string.Format("About to replace instance {0}.", ++count);
if (MessageBox.Show(msg, "Replace", MessageBoxButtons.OKCancel) == DialogResult.Cancel)
{
break;
}
// second part of the code moving range
range.Text = replace;
range.ApplyTag("strong");
previousStart = start;
// second part of the code using the Select method
//this.c1Editor1.Selection.Text = replace;
//this.c1Editor1.Selection.ApplyTag("strong");
}
// done
MessageBox.Show(string.Format("Done, {0} instances found.", count));
}
/// <summary>
/// Get the MarkerStyle of the selection.
/// </summary>
/// <param name="range"></param>
/// <returns></returns>
docs.TextMarkerStyle?GetMarkerStyle(C1TextRange range)
{
var lists = range.Lists.ToList();
docs.TextMarkerStyle?marker = lists.Any() ? new docs.TextMarkerStyle?(lists.First().MarkerStyle) : null;
foreach (var list in lists)
{
if (marker != list.MarkerStyle)
{
return(null);
}
}
return(marker);
}
//-------------------------------------------------------------------------------------
#region ** implementation
void UpdateSyntax()
{
// get text
string text = c1Editor1.Text;
// remove formatting
C1TextRange rng = c1Editor1.CreateRange(0, text.Length);
rng.RemoveTag("span");
// apply all syntax descriptors
foreach (SyntaxDescriptor sd in GetSyntaxDescriptors())
{
// initialize
int start = 0;
rng.Start.Move(MoveUnit.Character, -50000000);
rng.End.MoveTo(rng.Start);
// if there's a group called 'match', use it;
// otherwise, use the first one
int gIndex = sd.Regex.GroupNumberFromName("match");
if (gIndex < 0)
{
gIndex = 0;
}
// find all matches for this descriptor
for (Match match = sd.Regex.Match(text); match.Success; match = match.NextMatch())
{
// apply descriptor style for this match
Group g = match.Groups[gIndex];
foreach (Capture c in g.Captures)
{
rng.Move(c.Index - start, c.Length);
// avoid nested spans (e.g. reserved words in comments, etc)
if (rng.Node.ParentNode.Name != "span")
{
rng.ApplyClass(sd.ClassName, C1StyleType.Character);
}
start = c.Index;
}
}
}
}
// select an XmlNode in the document
void selectXmlNode_Click(object sender, EventArgs e)
{
MessageBox.Show("Selecting 6th paragraph using Nodes.");
// re-load document
c1Editor1.LoadXml(Properties.Resources.tesla, null);
// find 6th <p> node in document
XmlDocument doc = c1Editor1.Document;
XmlNodeList nodes = SelectNodes(doc, "/html/body/p");
if (nodes.Count > 5)
{
XmlNode node = nodes[5];
C1TextRange range = c1Editor1.CreateRange();
range.MoveTo(node);
range.Select();
}
}
// perform syntax coloring
void UpdateSyntaxColoring()
{
C1TextRange range = c1RichTextBox1.Document.ContentRange;
// reset coloring
_rangeStyles = new C1RangeStyleCollection();
c1RichTextBox1.StyleOverrides.Clear();
c1RichTextBox1.StyleOverrides.Add(_rangeStyles);
var input = range.Text;
if (Mode == SyntaxMode.Xaml)
{
// highlight the matches
foreach (Match m in Regex.Matches(input, tagPattern))
{
// select whole tag, make it dark blue
_rangeStyles.Add(new C1RangeStyle(GetRangeAtTextOffset(range.Start, m), brDarkBlue));
// select tag name, make it dark red
var tagName = m.Groups["tagName"];
_rangeStyles.Add(new C1RangeStyle(GetRangeAtTextOffset(range.Start, tagName), brDarkRed));
// select attribute names, make them light red
var attGroup = m.Groups["attName"];
if (attGroup != null)
{
var atts = attGroup.Captures;
for (int i = 0; i < atts.Count; i++)
{
var att = atts[i];
_rangeStyles.Add(new C1RangeStyle(GetRangeAtTextOffset(range.Start, att), brLightRed));
}
}
}
}
else if (Mode == SyntaxMode.CSharp)
{
// highlight reserved words first
foreach (string keyword in reservedWords)
{
foreach (Match m in Regex.Matches(input, keyword + " "))
{
// select reserved word, make it blue
_rangeStyles.Add(new C1RangeStyle(GetRangeAtTextOffset(range.Start, m), brBlue));
}
}
// highlight strings
foreach (Match m in Regex.Matches(input, stringPattern))
{
// select string, make it red
_rangeStyles.Add(new C1RangeStyle(GetRangeAtTextOffset(range.Start, m), brDarkRed));
}
// highlight comments
foreach (Match m in Regex.Matches(input, commentPattern))
{
// select comment, make it green
_rangeStyles.Add(new C1RangeStyle(GetRangeAtTextOffset(range.Start, m), brGreen));
}
}
}
/// <summary>
/// Get the MarkerStyle of the selection.
/// </summary>
/// <param name="range"></param>
/// <returns></returns>
docs.TextMarkerStyle? GetMarkerStyle(C1TextRange range)
{
var lists = range.Lists.ToList();
docs.TextMarkerStyle? marker = lists.Any() ? new docs.TextMarkerStyle?(lists.First().MarkerStyle) : null;
foreach (var list in lists)
{
if (marker != list.MarkerStyle) return null;
}
return marker;
}