JVariableList::MatchResult
JVariableList::FindUniqueVarName
(
const JCharacter* prefix,
JIndex* index,
JString* maxPrefix
)
const
{
assert( !JStringEmpty(prefix) );
const JSize count = GetElementCount();
JArray<JIndex> matchList;
for (JIndex i=1; i<=count; i++)
{
const JString& name = GetVariableName(i);
if (name == prefix)
{
*index = i;
*maxPrefix = name;
return kSingleMatch;
}
else if (JStringBeginsWith(name, name.GetLength(), prefix))
{
matchList.AppendElement(i);
}
}
const JSize matchCount = matchList.GetElementCount();
if (matchCount == 0)
{
*index = 0;
maxPrefix->Clear();
return kNoMatch;
}
else if (matchCount == 1)
{
*index = matchList.GetElement(1);
*maxPrefix = GetVariableName(*index);
return kSingleMatch;
}
else
{
*maxPrefix = GetVariableName( matchList.GetElement(1) );
for (JIndex i=2; i<=matchCount; i++)
{
const JString& varName = GetVariableName( matchList.GetElement(i) );
const JSize matchLength = JCalcMatchLength(*maxPrefix, varName);
const JSize prefixLength = maxPrefix->GetLength();
if (matchLength < prefixLength)
{
maxPrefix->RemoveSubstring(matchLength+1, prefixLength);
}
}
*index = 0;
return kMultipleMatch;
}
}
JString
JConvertToRelativePath
(
const JCharacter* origPath,
const JCharacter* origBase
)
{
// Check that they are both absolute paths.
assert( origPath != NULL && origPath[0] == '/' &&
origBase != NULL && origBase[0] == '/' );
// Remove extra directory separators
// and make sure that base ends with one.
JString path = origPath;
JCleanPath(&path);
JString base = origBase;
JCleanPath(&base);
JAppendDirSeparator(&base);
// Find and remove the matching directories at the beginning.
// The while loop backs us up so we only consider complete directory names.
JBoolean hadTDS = kJTrue;
if (path.GetLastCharacter() != '/')
{
path.AppendCharacter('/');
hadTDS = kJFalse;
}
JSize matchLength = JCalcMatchLength(path, base);
if (!hadTDS)
{
path.RemoveSubstring(path.GetLength(), path.GetLength());
}
while (base.GetCharacter(matchLength) != '/')
{
matchLength--;
}
assert( matchLength >= 1 );
if (matchLength == 1)
{
return path;
}
if (matchLength > path.GetLength())
{
base.RemoveSubstring(matchLength, matchLength);
matchLength--;
}
path.RemoveSubstring(1, matchLength);
base.RemoveSubstring(1, matchLength);
if (base.IsEmpty())
{
path.Prepend("./");
return path;
}
// The number of remaining directory separators in base
// is the number of levels to go up.
JSize upCount = 0;
const JSize baseLength = base.GetLength();
for (JIndex i=1; i<=baseLength; i++)
{
if (base.GetCharacter(i) == '/')
{
upCount++;
path.Prepend("../");
}
}
assert( upCount > 0 );
return path;
}
JBoolean
JXPathInput::Complete
(
JXInputField* te,
const JCharacter* basePath, // can be NULL
JDirInfo* completer,
JXStringCompletionMenu** menu // constructed if NULL
)
{
// only complete if caret is at end of text
JIndex caretIndex;
if (!te->GetCaretLocation(&caretIndex) ||
caretIndex != te->GetTextLength()+1)
{
return kJFalse;
}
// catch empty path
if (te->IsEmpty())
{
const JString path = JGetRootDirectory();
te->Paste(path);
return kJTrue;
}
// convert to absolute path
JString fullName;
if (!JExpandHomeDirShortcut(te->GetText(), &fullName))
{
return kJFalse;
}
if (JIsRelativePath(fullName))
{
if (JStringEmpty(basePath))
{
return kJFalse;
}
fullName = JCombinePathAndName(basePath, fullName);
}
// if completing ~ rather than ~/
if (fullName.EndsWith(ACE_DIRECTORY_SEPARATOR_STR) &&
!(te->GetText()).EndsWith(ACE_DIRECTORY_SEPARATOR_STR))
{
JStripTrailingDirSeparator(&fullName);
}
// get path and wildcard filter
JString path, name;
if (fullName.EndsWith(ACE_DIRECTORY_SEPARATOR_STR))
{
path = fullName;
name = "*";
}
else
{
JSplitPathAndName(fullName, &path, &name);
name.AppendCharacter('*');
}
// build completion list
if (!(completer->GoTo(path)).OK())
{
return kJFalse;
}
completer->SetWildcardFilter(name, kJFalse, kJTrue);
if (completer->IsEmpty())
{
return kJFalse;
}
// check for characters common to all matches
JString maxPrefix = jGetFullName(completer, 1);
const JSize matchCount = completer->GetEntryCount();
JString entryName;
for (JIndex i=2; i<=matchCount; i++)
{
entryName = jGetFullName(completer, i);
const JSize matchLength = JCalcMatchLength(maxPrefix, entryName);
const JSize prefixLength = maxPrefix.GetLength();
if (matchLength < prefixLength)
{
maxPrefix.RemoveSubstring(matchLength+1, prefixLength);
}
}
// use the completion list
if (matchCount > 0 &&
maxPrefix.GetLength() > fullName.GetLength())
{
maxPrefix.RemoveSubstring(1, fullName.GetLength());
if (matchCount == 1 && (completer->GetEntry(1)).IsDirectory())
{
JAppendDirSeparator(&maxPrefix);
}
te->Paste(maxPrefix); // so Undo removes completion
if (*menu != NULL)
{
(**menu).ClearRequestCount();
}
return kJTrue;
}
else if (matchCount > 1)
{
if (*menu == NULL)
{
*menu = new JXStringCompletionMenu(te, kJFalse);
assert( *menu != NULL );
}
else
{
(**menu).RemoveAllItems();
}
for (JIndex i=1; i<=matchCount; i++)
{
entryName = jGetName(completer, i);
(**menu).AddString(entryName);
}
(**menu).CompletionRequested(name.GetLength()-1);
return kJTrue;
}
else
{
return kJFalse;
}
}
void
GDBGetCompletions::HandleSuccess
(
const JString& data
)
{
JPtrArray<JString> lines(JPtrArrayT::kDeleteAll);
lines.SetSortOrder(JOrderedSetT::kSortAscending);
lines.SetCompareFunction(JCompareStringsCaseSensitive);
// loop through each line and add each one to our list
JIndex i = 1, j = 1;
while (data.LocateNextSubstring("\n", &j))
{
if (j > i)
{
JString* s = new JString(data, JIndexRange(i, j-1));
assert( s != NULL );
s->TrimWhitespace();
if (s->IsEmpty() || !lines.InsertSorted(s, kJFalse))
{
delete s;
}
}
i = j+1;
j = i;
}
if (i <= data.GetLength())
{
JString* s = new JString(data, JIndexRange(i, data.GetLength()));
assert( s != NULL );
s->TrimWhitespace();
if (s->IsEmpty() || !lines.InsertSorted(s, kJFalse))
{
delete s;
}
}
if (lines.IsEmpty())
{
(itsInput->GetDisplay())->Beep();
return;
}
// Check if we're done. If we find our test prefix in the array, and
// the array has only one element, we're done. Otherwise, our test
// prefix is the 'start' of several possible commands.
const JSize stringCount = lines.GetElementCount();
JBoolean found;
JIndex startIndex = lines.SearchSorted1(&itsPrefix, JOrderedSetT::kAnyMatch, &found);
if (found)
{
if (stringCount == 1)
{
// The input text is already complete. We just need to add a
// space at the end to show that it is a complete word.
itsPrefix += " ";
}
else
{
// We can't add anything to what the user has types, so we show
// all possible completions.
itsHistory->PlaceCursorAtEnd();
itsHistory->Paste("\n");
itsHistory->Paste(data);
}
itsInput->SetText(itsPrefix);
itsInput->SetCaretLocation(itsInput->GetTextLength() + 1);
return;
}
JString maxPrefix;
maxPrefix = *(lines.NthElement(startIndex));
if (stringCount == 1)
{
// There's only one completion, which must be what we meant so we
// fill in the input with this word.
maxPrefix += " ";
itsInput->SetText(maxPrefix);
itsInput->SetCaretLocation(itsInput->GetTextLength() + 1);
return;
}
for (JIndex i=startIndex+1; i<=stringCount; i++)
{
const JString* s = lines.NthElement(i);
const JSize matchLength = JCalcMatchLength(maxPrefix, *s);
const JSize prefixLength = maxPrefix.GetLength();
if (matchLength < prefixLength)
{
maxPrefix.RemoveSubstring(matchLength+1, prefixLength);
}
}
if (maxPrefix == itsPrefix)
{
// The input text is all that the words have in common so we can't
// add anything to the input. We therefore need to dump everything
// to the history window.
itsHistory->PlaceCursorAtEnd();
itsHistory->Paste("\n");
itsHistory->Paste(data);
}
else
{
itsInput->SetText(maxPrefix);
itsInput->SetCaretLocation(itsInput->GetTextLength() + 1);
}
}
JSize
CBStringCompleter::Complete
(
const JString& prefix,
JString* maxPrefix,
JXStringCompletionMenu* menu
)
const
{
menu->RemoveAllItems();
JBoolean found;
const JIndex startIndex =
itsStringList->SearchSorted1(const_cast<JString*>(&prefix),
JOrderedSetT::kAnyMatch, &found);
const JSize stringCount = itsStringList->GetElementCount();
if (startIndex > stringCount)
{
maxPrefix->Clear();
return 0;
}
JPtrArray<JString> matchList(JPtrArrayT::kForgetAll, 100);
*maxPrefix = *(itsStringList->NthElement(startIndex));
JSize matchCount = 0;
JBoolean addString = kJTrue;
for (JIndex i=startIndex; i<=stringCount; i++)
{
const JString* s = itsStringList->NthElement(i);
if (!s->BeginsWith(prefix, itsCaseSensitiveFlag))
{
break;
}
if (matchCount > 0)
{
const JSize matchLength = JCalcMatchLength(*maxPrefix, *s, itsCaseSensitiveFlag);
const JSize prefixLength = maxPrefix->GetLength();
if (matchLength < prefixLength)
{
maxPrefix->RemoveSubstring(matchLength+1, prefixLength);
}
}
matchCount++;
if (itsCaseSensitiveFlag)
{
matchList.Append(const_cast<JString*>(s));
}
else if (addString)
{
JString s1 = *s;
MatchCase(prefix, &s1);
addString = menu->AddString(s1); // must process all to get maxPrefix
}
}
if (itsCaseSensitiveFlag && matchCount > 0)
{
matchList.SetSortOrder(JOrderedSetT::kSortAscending);
matchList.SetCompareFunction(JCompareStringsCaseInsensitive);
matchList.Sort();
assert( matchCount == matchList.GetElementCount() );
for (JIndex i=1; i<=matchCount; i++)
{
if (!menu->AddString(*(matchList.NthElement(i))))
{
matchCount = i-1;
break;
}
}
}
else if (!itsCaseSensitiveFlag)
{
MatchCase(prefix, maxPrefix);
}
return matchCount;
}
