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Fixed: Find&Replace in Script Editor would go into an infinite loop if replacement contains the searched text

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This commit is contained in:
ZZYZX 2017-02-13 03:02:14 +02:00
parent db1db76b4b
commit 123145085f
2 changed files with 103 additions and 8 deletions
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94
Source/Core/Controls/Scripting/ScriptEditorPanel.cs
View file

@ -404,6 +404,100 @@ namespace CodeImp.DoomBuilder.Controls
#region ================== Methods
// [ZZ] Find and Replace
// This needs to be done in the script editor class, because we don't want to loop over the same value
// And for this, we need to know the context properly, not just "while FindNext && Replace".
// Which means there should be a function that does both find and replace manually.
public int FindReplace(FindReplaceOptions options)
{
// [ZZ] why do we require current tab for "find everywhere" and "replace everywhere"?
// todo: understand and refactor
//
// [ZZ] note: if we want CURRENT_*, error out if no active tab.
FindReplaceOptions singlesearchoptions = new FindReplaceOptions(options) { SearchMode = FindReplaceSearchMode.CURRENT_FILE };
List<ScriptDocumentTab> rtabs = new List<ScriptDocumentTab>();
switch (options.SearchMode)
{
// we really need a bitfield here. Whatever.
case FindReplaceSearchMode.CURRENT_FILE:
if (ActiveTab == null)
return 0;
rtabs.Add(ActiveTab);
break;
case FindReplaceSearchMode.OPENED_TABS_CURRENT_SCRIPT_TYPE:
if (ActiveTab == null)
return 0;
// .NET is heavily retarded
goto case FindReplaceSearchMode.OPENED_TABS_ALL_SCRIPT_TYPES;
case FindReplaceSearchMode.OPENED_TABS_ALL_SCRIPT_TYPES:
foreach (ScriptDocumentTab tab in tabs.TabPages)
{
if (options.SearchMode == FindReplaceSearchMode.OPENED_TABS_ALL_SCRIPT_TYPES ||
tab.Config.ScriptType == ActiveTab.Config.ScriptType) rtabs.Add(tab);
}
break;
case FindReplaceSearchMode.CURRENT_PROJECT_CURRENT_SCRIPT_TYPE:
if (ActiveTab == null)
return 0;
// .NET is heavily retarded
goto case FindReplaceSearchMode.CURRENT_PROJECT_ALL_SCRIPT_TYPES;
case FindReplaceSearchMode.CURRENT_PROJECT_ALL_SCRIPT_TYPES:
// Just search among all resources
var usedscripttypes = new List<ScriptType>(General.Map.Data.ScriptResources.Keys);
for (int i = 0; i < usedscripttypes.Count; i++)
{
if (options.SearchMode != FindReplaceSearchMode.CURRENT_PROJECT_ALL_SCRIPT_TYPES &&
usedscripttypes[i] != ActiveTab.Config.ScriptType) continue; // [ZZ] skip irrelevant script types
foreach (ScriptResource sr in General.Map.Data.ScriptResources[usedscripttypes[i]])
{
if (!sr.IsReadOnly && sr.ContainsText(singlesearchoptions))
{
// open this tab
var newtab = OpenResource(sr);
rtabs.Add(newtab);
}
}
}
break;
}
int replacements = 0;
foreach (ScriptDocumentTab tab in rtabs)
{
// do find/replace in the current tab.
// make sure that we don't find the same thing twice in case replacement has part of it's value.
int firstPosition = -1;
int lengthDifference = options.ReplaceWith.Length - options.FindText.Length;
int lastSelectionStart = -1;
int lastSelectionEnd = -1;
while (true)
{
if (!tab.FindNext(singlesearchoptions))
break;
if (firstPosition < 0)
firstPosition = tab.SelectionStart;
else if (tab.SelectionStart == firstPosition) // found the first
{
tab.SelectionStart = lastSelectionStart;
tab.SelectionEnd = lastSelectionEnd;
break;
}
if (tab.SelectionStart < firstPosition) // offset the first position with string length difference if we are replacing before it.
firstPosition += lengthDifference;
// do replacement
tab.ReplaceSelection(options.ReplaceWith);
//
lastSelectionStart = tab.SelectionStart;
lastSelectionEnd = tab.SelectionEnd;
replacements++;
}
}
return replacements;
}
// Find Next
public bool FindNext(FindReplaceOptions options)
{

15
Source/Core/Windows/ScriptFindReplaceForm.cs
View file

@ -313,17 +313,18 @@ namespace CodeImp.DoomBuilder.Windows
AddComboboxText(replacebox, options.ReplaceWith);
// Find next match
// [ZZ] why are we doing this? we aren't limited to the current tab.....
/*
ScriptDocumentTab curtab = editor.ActiveTab;
if(curtab == null || !curtab.FindNext(options, true))
{
editor.DisplayStatus(ScriptStatusType.Warning, "Can't find any occurrence of \"" + options.FindText + "\".");
return;
}
}*/
// Replace loop
int replacements = 0;
while(editor.FindNext(options) && editor.Replace(options))
replacements++;
// Replace loop
// We don't really want to do this outside of the script editor.
int replacements = editor.FindReplace(options);
// Show result
if(replacements == 0)
@ -334,8 +335,8 @@ namespace CodeImp.DoomBuilder.Windows
{
editor.DisplayStatus(ScriptStatusType.Info, "Replaced " + replacements + " occurrences of \"" + options.FindText + "\" with \"" + options.ReplaceWith + "\".");
// Find & select the last match on the now-current tab
curtab = editor.ActiveTab;
// Find & select the last match on the now-current tab
ScriptDocumentTab curtab = editor.ActiveTab;
if(curtab != null)
{
options.FindText = options.ReplaceWith;