mirror of
https://git.do.srb2.org/STJr/UltimateZoneBuilder.git
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5eb438e3ba
Added map scripting capabilities to UDB (#656). Documentation at https://biwa.github.io/udbscript-docs/
455 lines
15 KiB
C#
Executable file
455 lines
15 KiB
C#
Executable file
#region ================== Namespaces
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Text;
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using System.Windows.Forms;
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using CodeImp.DoomBuilder.Compilers;
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using CodeImp.DoomBuilder.Config;
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using CodeImp.DoomBuilder.Controls;
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using CodeImp.DoomBuilder.IO;
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#endregion
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using ScintillaNET;
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namespace CodeImp.DoomBuilder.Data.Scripting
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{
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[ScriptHandler(ScriptType.UNKNOWN)]
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public class ScriptHandler
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{
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#region ================== Constants
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protected const int MAX_BACKTRACK_LENGTH = 200;
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#endregion
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#region ================== Variables
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private ScriptEditorControl scriptcontrol;
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protected Scintilla scriptedit;
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protected ScriptConfiguration scriptconfig;
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// List of keywords and constants
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private List<string> autocompletelist;
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// Current position information
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private string curfunctionname = "";
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private int curargumentindex;
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private int curfunctionstartpos;
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#endregion
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#region ================== Methods
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public virtual void Initialize(ScriptEditorControl scriptcontrol, ScriptConfiguration scriptconfig)
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{
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this.scriptcontrol = scriptcontrol;
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this.scriptedit = scriptcontrol.Scintilla;
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this.scriptconfig = scriptconfig;
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// Bind events
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this.scriptedit.KeyUp += scriptedit_KeyUp;
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}
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//TODO: Remove ScriptDocumentTab from here
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public virtual List<CompilerError> UpdateFunctionBarItems(ScriptDocumentTab tab, MemoryStream stream, ComboBox target)
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{
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// Unsupported script type. Just clear the items
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target.Items.Clear();
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return new List<CompilerError>();
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}
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//mxd. Autocompletion handling (https://github.com/jacobslusser/ScintillaNET/wiki/Basic-Autocompletion)
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public virtual bool ShowAutoCompletionList()
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{
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int currentpos = scriptedit.CurrentPosition;
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int wordstartpos = scriptedit.WordStartPosition(currentpos, true);
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if(wordstartpos >= currentpos)
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{
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// Hide the list
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scriptedit.AutoCCancel();
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return false;
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}
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// Get entered text
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string start = scriptedit.GetTextRange(wordstartpos, currentpos - wordstartpos);
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if(string.IsNullOrEmpty(start))
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{
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// Hide the list
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scriptedit.AutoCCancel();
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return false;
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}
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// Don't show Auto-completion list when editing comment, include or string
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switch(scriptcontrol.GetScriptStyle(scriptedit.GetStyleAt(currentpos)))
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{
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case ScriptStyleType.Comment:
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case ScriptStyleType.String:
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// Hide the list
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scriptedit.AutoCCancel();
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return false;
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case ScriptStyleType.Include:
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// Hide the list unless current word is a keyword
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if(!start.StartsWith("#"))
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{
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scriptedit.AutoCCancel();
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return false;
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}
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break;
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}
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// Filter the list
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List<string> filtered = new List<string>();
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foreach(string s in autocompletelist)
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if(s.IndexOf(start, StringComparison.OrdinalIgnoreCase) != -1) filtered.Add(s);
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// Any matches?
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if(filtered.Count > 0)
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{
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// Show the list
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scriptedit.AutoCShow(currentpos - wordstartpos, string.Join(" ", filtered.ToArray()));
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return true;
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}
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// Hide the list
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scriptedit.AutoCCancel();
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return false;
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}
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internal void SetKeywords(Configuration lexercfg, string lexername)
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{
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Dictionary<string, string> autocompletedict = new Dictionary<string, string>(StringComparer.Ordinal);
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// Create the keywords list and apply it
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string imageindex = ((int)ScriptEditorControl.ImageIndex.ScriptKeyword).ToString(CultureInfo.InvariantCulture);
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int keywordsindex = lexercfg.ReadSetting(lexername + ".keywordsindex", -1);
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if(keywordsindex > -1)
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{
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StringBuilder keywordslist = new StringBuilder();
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foreach(string k in scriptconfig.Keywords)
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{
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if(keywordslist.Length > 0) keywordslist.Append(" ");
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keywordslist.Append(k);
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//mxd. Skip adding the keyword if we have a snippet with the same name
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if(!scriptconfig.Snippets.Contains(k)) autocompletedict.Add(k, k + "?" + imageindex);
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}
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string words = keywordslist.ToString();
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scriptedit.SetKeywords(keywordsindex, (scriptconfig.CaseSensitive ? words : words.ToLowerInvariant()));
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}
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//mxd. Create the properties list and apply it
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imageindex = ((int)ScriptEditorControl.ImageIndex.ScriptProperty).ToString(CultureInfo.InvariantCulture);
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int propertiesindex = lexercfg.ReadSetting(lexername + ".propertiesindex", -1);
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if(propertiesindex > -1)
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{
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StringBuilder propertieslist = new StringBuilder();
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HashSet<string> addedprops = new HashSet<string>();
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char[] dot = { '.' };
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foreach(string p in scriptconfig.Properties)
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{
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if(propertieslist.Length > 0) propertieslist.Append(" ");
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// Scintilla doesn't highlight keywords with '.' or ':', so get rid of those
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if(scriptconfig.ScriptType == ScriptType.DECORATE)
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{
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string prop = p;
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if(prop.Contains(":")) prop = prop.Replace(":", string.Empty);
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if(prop.Contains("."))
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{
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// Split dotted properties into separate entries
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string[] parts = prop.Split(dot, StringSplitOptions.RemoveEmptyEntries);
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List<string> result = new List<string>();
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foreach(string part in parts)
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{
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if(!addedprops.Contains(part))
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{
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result.Add(part);
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addedprops.Add(part);
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}
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}
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if(result.Count > 0) propertieslist.Append(string.Join(" ", result.ToArray()));
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}
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else
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{
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addedprops.Add(prop);
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propertieslist.Append(prop);
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}
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}
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else
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{
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propertieslist.Append(p);
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}
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// Autocomplete doesn't mind '.' or ':'
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// Skip adding the keyword if we have a snippet with the same name
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if(!scriptconfig.Snippets.Contains(p))
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{
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if(autocompletedict.ContainsKey(p))
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General.ErrorLogger.Add(ErrorType.Warning, "Property \"" + p + "\" is double defined in \"" + scriptconfig.Description + "\" script configuration.");
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else
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autocompletedict.Add(p, p + "?" + imageindex);
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}
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}
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string words = propertieslist.ToString();
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scriptedit.SetKeywords(propertiesindex, (scriptconfig.CaseSensitive ? words : words.ToLowerInvariant()));
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}
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// Create the constants list and apply it
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imageindex = ((int)ScriptEditorControl.ImageIndex.ScriptConstant).ToString(CultureInfo.InvariantCulture);
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int constantsindex = lexercfg.ReadSetting(lexername + ".constantsindex", -1);
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if(constantsindex > -1)
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{
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StringBuilder constantslist = new StringBuilder();
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foreach(string c in scriptconfig.Constants)
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{
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if(autocompletedict.ContainsKey(c))
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continue; //mxd. This happens when there's a keyword and a constant with the same name...
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if(constantslist.Length > 0) constantslist.Append(" ");
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constantslist.Append(c);
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//mxd. Skip adding the constant if we have a snippet with the same name
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if(!scriptconfig.Snippets.Contains(c)) autocompletedict.Add(c, c + "?" + imageindex);
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}
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string words = constantslist.ToString();
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scriptedit.SetKeywords(constantsindex, (scriptconfig.CaseSensitive ? words : words.ToLowerInvariant()));
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}
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//mxd. Create the snippets list and apply it
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imageindex = ((int)ScriptEditorControl.ImageIndex.ScriptSnippet).ToString(CultureInfo.InvariantCulture);
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int snippetindex = lexercfg.ReadSetting(lexername + ".snippetindex", -1);
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if(snippetindex > -1 && scriptconfig.Snippets.Count > 0)
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{
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StringBuilder snippetslist = new StringBuilder();
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foreach(string s in scriptconfig.Snippets)
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{
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if(snippetslist.Length > 0) snippetslist.Append(" ");
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snippetslist.Append(s);
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autocompletedict.Add(s, s + "?" + imageindex);
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}
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string words = snippetslist.ToString();
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scriptedit.SetKeywords(snippetindex, (scriptconfig.CaseSensitive ? words : words.ToLowerInvariant()));
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}
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// Make autocomplete list
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autocompletelist = new List<string>(autocompletedict.Values);
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}
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// This gathers information about the current caret position
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protected void UpdatePositionInfo()
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{
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int bracketlevel = 0; // bracket level counting
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int argindex = 0; // function argument counting
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int pos = scriptedit.CurrentPosition;
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// Get the text
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string scripttext = scriptedit.Text;
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// Reset position info
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curfunctionname = "";
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curargumentindex = 0;
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curfunctionstartpos = 0;
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// Determine lowest backtrack position
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int limitpos = Math.Max(0, scriptedit.CurrentPosition - MAX_BACKTRACK_LENGTH);
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// We can only do this when we have function syntax information
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if((scriptconfig.ArgumentDelimiter.Length == 0) || (scriptconfig.FunctionClose.Length == 0) ||
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(scriptconfig.FunctionOpen.Length == 0) || (scriptconfig.Terminator.Length == 0))
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return;
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// Get int versions of the function syntax informantion
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int argumentdelimiter = scriptconfig.ArgumentDelimiter[0];
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int functionclose = scriptconfig.FunctionClose[0];
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int functionopen = scriptconfig.FunctionOpen[0];
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int terminator = scriptconfig.Terminator[0];
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// Continue backtracking until we reached the limitpos
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while(pos >= limitpos)
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{
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// Backtrack 1 character
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pos--;
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// Get the style and character at this position
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ScriptStyleType curstyle = scriptcontrol.GetScriptStyle(scriptedit.GetStyleAt(pos));
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int curchar = scriptedit.GetCharAt(pos);
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// Then meeting ) then increase bracket level
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// When meeting ( then decrease bracket level
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// When bracket level goes -1, then the next word should be the function name
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// Only when at bracket level 0, count the comma's for argument index
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// TODO:
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// Original code checked for scope character here and breaks if found
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// Check if in plain text or keyword
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if((curstyle == ScriptStyleType.PlainText) || (curstyle == ScriptStyleType.Keyword))
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{
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// Closing bracket
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if(curchar == functionclose)
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{
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bracketlevel++;
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}
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// Opening bracket
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else if(curchar == functionopen)
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{
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bracketlevel--;
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// Out of the brackets?
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if(bracketlevel < 0)
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{
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// Skip any whitespace before this bracket
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do
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{
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// Backtrack 1 character
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curchar = scriptedit.GetCharAt(--pos);
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}
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while((pos >= limitpos) && ((curchar == ' ') || (curchar == '\t') ||
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(curchar == '\r') || (curchar == '\n')));
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// NOTE: We may need to set onlyWordCharacters argument in the
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// following calls to false to get any argument delimiter included,
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// but this may also cause a valid keyword to be combined with other
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// surrounding characters that do not belong to the keyword.
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// Find the word before this bracket
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int wordstart = scriptedit.WordStartPosition(pos, true);
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int wordend = scriptedit.WordEndPosition(pos, true);
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string word = scripttext.Substring(wordstart, wordend - wordstart);
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if(word.Length > 0)
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{
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// Check if this is an argument delimiter
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// I can't remember why I did this, but I'll probably stumble
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// upon the problem if this doesn't work right (see note above)
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if(word[0] == argumentdelimiter)
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{
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// We are now in the parent function
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bracketlevel++;
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argindex = 0;
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}
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// Now check if this is a keyword
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else if(scriptconfig.IsKeyword(word))
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{
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// Found it!
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curfunctionname = scriptconfig.GetKeywordCase(word);
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curargumentindex = argindex;
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curfunctionstartpos = wordstart;
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break;
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}
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else
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{
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// Don't know this word
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break;
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}
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}
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}
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}
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// Argument delimiter
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else if(curchar == argumentdelimiter)
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{
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// Only count these at brackt level 0
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if(bracketlevel == 0) argindex++;
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}
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// Terminator
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else if(curchar == terminator)
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{
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// Can't find anything, break now
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break;
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}
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}
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}
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}
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#endregion
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#region ================== Events
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private void scriptedit_KeyUp(object sender, KeyEventArgs e)
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{
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bool showcalltip = false;
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int highlightstart = 0;
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int highlightend = 0;
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UpdatePositionInfo();
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// Call tip shown
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if(scriptedit.CallTipActive)
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{
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// Should we hide the call tip?
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if(curfunctionname.Length == 0)
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{
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// Hide the call tip
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scriptedit.CallTipCancel();
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}
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else
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{
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// Update the call tip
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showcalltip = true;
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}
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}
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// No call tip
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else
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{
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// Should we show a call tip?
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showcalltip = (curfunctionname.Length > 0) && !scriptedit.AutoCActive;
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}
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// Show or update call tip
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if(showcalltip)
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{
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string functiondef = scriptconfig.GetFunctionDefinition(curfunctionname);
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if(functiondef != null)
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{
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// Determine the range to highlight
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int argsopenpos = functiondef.IndexOf(scriptconfig.FunctionOpen, StringComparison.Ordinal);
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int argsclosepos = functiondef.LastIndexOf(scriptconfig.FunctionClose, StringComparison.Ordinal);
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if((argsopenpos > -1) && (argsclosepos > -1))
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{
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string argsstr = functiondef.Substring(argsopenpos + 1, argsclosepos - argsopenpos - 1);
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string[] args = argsstr.Split(scriptconfig.ArgumentDelimiter[0]);
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if((curargumentindex >= 0) && (curargumentindex < args.Length))
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{
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int argoffset = 0;
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for(int i = 0; i < curargumentindex; i++) argoffset += args[i].Length + 1;
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highlightstart = argsopenpos + argoffset + 1;
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highlightend = highlightstart + args[curargumentindex].Length;
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}
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}
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// Determine callip position
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int tippos = curfunctionstartpos;
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int funcline = scriptedit.LineFromPosition(curfunctionstartpos);
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//mxd. If the tip obscures the view, move it down
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if(scriptedit.CurrentLine > funcline)
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{
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int offset = curfunctionstartpos - scriptedit.Lines[funcline].Position;
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tippos = scriptedit.Lines[scriptedit.CurrentLine].Position + offset;
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}
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//mxd. Take line wrapping into account
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if(scriptedit.Lines[scriptedit.CurrentLine].WrapCount > 0)
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{
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int x = scriptedit.PointXFromPosition(tippos);
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int y = scriptedit.PointYFromPosition(scriptedit.CurrentPosition);
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int newtippos = scriptedit.CharPositionFromPointClose(x, y);
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if(newtippos != -1) tippos = newtippos;
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}
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// Show tip
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scriptedit.CallTipShow(tippos, functiondef);
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scriptedit.CallTipSetHlt(highlightstart, highlightend);
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}
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}
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}
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#endregion
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}
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}
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