/// <summary>Prevents re-entrant calls to UpdateUI. Yes this is the best way to do it /cry</summary>
protected override void UpdateUIInternal()
{
m_edit_match.Text = Pattern.Expr;
m_edit_eqv_regex.Text = Pattern.RegexString;
m_edit_replace.Text = Pattern.Replace;
m_radio_substring.Checked = Pattern.PatnType == EPattern.Substring;
m_radio_wildcard.Checked = Pattern.PatnType == EPattern.Wildcard;
m_radio_regex.Checked = Pattern.PatnType == EPattern.RegularExpression;
m_check_ignore_case.Checked = Pattern.IgnoreCase;
m_btn_add.ToolTip(m_tt, IsNew ? "Add this new pattern" : "Save changes to this pattern");
m_btn_add.ImageKey = IsNew ? "add" : "save";
m_btn_add.Enabled = CommitEnabled;
// Show/Hide the eqv regex
m_table.Height = m_table.PreferredSize.Height;
m_split_subs.Top = m_table.Bottom;
m_split_subs.Height = m_split_subs.Parent.Height - m_split_subs.Top - 3;
// Highlight the match/replace fields if in error
var ex0 = Pattern.ValidateExpr();
string tt0 = ex0 == null
? "The pattern used to identify rows to transform.\r\n" +
(Pattern.PatnType == EPattern.RegularExpression
? "Capture groups are defined using the usual regular expression syntax for capture groups e.g. (.*),(<tag>?.*),etc\r\n"
: "Create capture groups using '{' and '}', e.g. {one},{2},{tag},etc\r\n")
: "Invalid match pattern - " + ex0.Message;
var ex1 = Pattern.ValidateReplace();
string tt1 = ex1 == null
? "The template for the transformed result.\r\nUse the capture groups (syntax: {1} or {tag}) created in the Match field"
: "Invalid replace template - " + ex1.Message;
m_lbl_match.ToolTip(m_tt, tt0);
m_edit_match.ToolTip(m_tt, tt0);
m_lbl_replace.ToolTip(m_tt, tt1);
m_edit_replace.ToolTip(m_tt, tt1);
m_edit_match.BackColor = Misc.FieldBkColor(ex0 == null);
m_edit_replace.BackColor = Misc.FieldBkColor(ex1 == null);
// Apply the transform to the test text if not in error
if (ex0 == null && ex1 == null)
{
string[] lines = m_edit_test.Lines;
// Preserve the current carot position
using (m_edit_test.SelectionScope())
{
// Reset the highlighting
m_edit_test.SelectAll();
m_edit_test.SelectionBackColor = Color.White;
// Apply the transform to each line in the test text
m_edit_result.Clear();
for (int i = 0, iend = lines.Length; i != iend; ++i)
{
m_edit_result.Select(m_edit_result.TextLength, 0);
if (i != 0)
{
m_edit_result.SelectedText = Environment.NewLine;
}
if (!Pattern.IsMatch(lines[i]))
{
m_edit_result.SelectedText = lines[i];
}
else
{
int starti = m_edit_test.GetFirstCharIndexFromLine(i);
int startj = m_edit_result.TextLength;
List <Transform.Capture> src_caps, dst_caps;
string result = Pattern.Txfm(lines[i], out src_caps, out dst_caps);
m_edit_result.SelectedText = result;
// Highlight the capture groups in the test text and the result
int j = 0; foreach (var s in src_caps)
{
m_edit_test.Select(starti + s.Span.Begi, s.Span.Sizei);
m_edit_test.SelectionBackColor = Constants.BkColors[j++ % Constants.BkColors.Length];
}
j = 0; foreach (var s in dst_caps)
{
m_edit_result.Select(startj + s.Span.Begi, s.Span.Sizei);
m_edit_result.SelectionBackColor = Constants.BkColors[j++ % Constants.BkColors.Length];
}
}
}
}
// Updates the caps data based on the line that the cursor's in
var line_index = m_edit_test.GetLineFromCharIndex(m_edit_test.SelectionStart);
var line = line_index >= 0 && line_index < lines.Length ? lines[line_index] : string.Empty;
var groups = new Dictionary <string, string>();
foreach (var name in Pattern.CaptureGroupNames)
{
groups[name] = string.Empty;
}
foreach (var cap in Pattern.CaptureGroups(line))
{
groups[cap.Key] = cap.Value;
}
m_caps = groups.ToList();
}
m_grid_subs.RowCount = m_caps.Count;
m_grid_subs.Refresh();
}