/* Function: Duplicate
* Creates an independent copy of the prototype enders and all their attributes.
*/
public TextFilePrototypeEnders Duplicate()
{
TextFilePrototypeEnders copy = new TextFilePrototypeEnders(commentType, propertyLocation);
copy.enderStrings = new List <string>(enderStrings.Count);
copy.enderStrings.AddRange(enderStrings);
return(copy);
}
/* Function: AddPrototypeEnders
* Adds <TextFilePrototypeEnders> which maps a comment type string to its ender strings. Line breaks are represented
* with "\n". If a set of enders strings already exists for the comment type string it will be replaced.
*/
public void AddPrototypeEnders(TextFilePrototypeEnders prototypeEnders)
{
if (this.prototypeEnders == null)
{
this.prototypeEnders = new List <TextFilePrototypeEnders>();
}
int index = FindPrototypeEndersIndex(prototypeEnders.CommentType);
if (index == -1)
{
this.prototypeEnders.Add(prototypeEnders);
}
else
{
// We could just overwrite the entry at the index but we want to preserve the order they appear in.
this.prototypeEnders.RemoveAt(index);
this.prototypeEnders.Add(prototypeEnders);
}
}
// Group: Loading Functions
// __________________________________________________________________________
/* Function: Load
*
* Loads the contents of a <Languages.txt> file into a <ConfigFiles.Textfile>, returning whether it was successful. If it
* was unsuccessful config will be null and it will place errors on the errorList.
*
* Parameters:
*
* filename - The <Path> where the file is located.
* propertySource - The <Engine.Config.PropertySource> associated with the file.
* errorList - If it couldn't successfully parse the file it will add error messages to this list.
* config - The contents of the file as a <ConfigFiles.TextFile>.
*/
public bool Load(Path filename, Engine.Config.PropertySource propertySource, Errors.ErrorList errorList,
out ConfigFiles.TextFile config)
{
int previousErrorCount = errorList.Count;
using (ConfigFile file = new ConfigFile())
{
bool openResult = file.Open(filename,
propertySource,
ConfigFile.FileFormatFlags.CondenseIdentifierWhitespace |
ConfigFile.FileFormatFlags.CondenseValueWhitespace |
ConfigFile.FileFormatFlags.MakeIdentifiersLowercase,
errorList);
if (openResult == false)
{
config = null;
return(false);
}
config = new ConfigFiles.TextFile();
TextFileLanguage currentLanguage = null;
char[] space = { ' ' };
System.Text.RegularExpressions.Match match;
while (file.Get(out string identifier, out string value))
{
//
// Ignore Extensions
//
if (ignoreExtensionsRegex.IsMatch(identifier))
{
currentLanguage = null;
var ignoredExtensions = value.Split(space);
NormalizeFileExtensions(ignoredExtensions);
config.AddIgnoredFileExtensions(ignoredExtensions, file.PropertyLocation);
}
//
// Language
//
else if (identifier == "language")
{
var existingLanguage = config.FindLanguage(value);
if (existingLanguage != null)
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.LanguageAlreadyExists(name)", value)
);
// Continue parsing. We'll throw this into the existing language even though it shouldn't be overwriting
// its values because we want to find any other errors there are in the file.
currentLanguage = existingLanguage;
}
else
{
currentLanguage = new TextFileLanguage(value, file.PropertyLocation);
config.AddLanguage(currentLanguage);
}
}
//
// Alter Language
//
else if (alterLanguageRegex.IsMatch(identifier))
{
// We don't check if the name exists because it may exist in a different file. We also don't check if it exists
// in the current file because using Alter is valid (if unnecessary) in that case and we don't want to combine
// their definitions. Why? Consider this:
//
// Language: Language A
// Extensions: langA
//
// Language: Language B
// Extensions: langB
//
// Alter Language: Language A
// Add Extensions: langB
//
// Extension langB should be part of Language A. However, if we merged the definitions it would appear
// first and be overridden by Language B. So we just create two language entries for A instead.
currentLanguage = new TextFileLanguage(value, file.PropertyLocation, alterLanguage: true);
config.AddLanguage(currentLanguage);
}
//
// Aliases
//
else if (aliasesRegex.IsMatch(identifier))
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else if (currentLanguage.AlterLanguage)
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.NeedAddReplaceWhenAlteringLanguage(keyword)", "Aliases")
);
}
else
{
var aliases = value.Split(space);
currentLanguage.SetAliases(aliases, file.PropertyLocation);
}
}
//
// Add/Replace Aliases
//
else if ((match = addReplaceAliasesRegex.Match(identifier)) != null && match.Success)
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else
{
TextFileLanguage.PropertyChange propertyChange;
if (match.Groups[1].Value == "add")
{
propertyChange = TextFileLanguage.PropertyChange.Add;
}
else if (match.Groups[1].Value == "replace")
{
propertyChange = TextFileLanguage.PropertyChange.Replace;
}
else
{
throw new NotImplementedException();
}
// If we're adding to a language that already has them, we need to combine the properties.
if (propertyChange == TextFileLanguage.PropertyChange.Add &&
currentLanguage.HasAliases)
{
var oldAliases = currentLanguage.Aliases;
var newAliases = value.Split(space);
List <string> combinedAliases = new List <string>(oldAliases.Count + newAliases.Length);
combinedAliases.AddRange(oldAliases);
combinedAliases.AddRange(newAliases);
currentLanguage.SetAliases(combinedAliases, file.PropertyLocation, propertyChange);
}
// Otherwise we can just add them as is.
else
{
var aliases = value.Split(space);
currentLanguage.SetAliases(aliases, file.PropertyLocation, propertyChange);
}
}
}
//
// File Extensions
//
else if (fileExtensionsRegex.IsMatch(identifier))
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else if (currentLanguage.AlterLanguage)
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.NeedAddReplaceWhenAlteringLanguage(keyword)", "Extensions")
);
}
else
{
var extensions = value.Split(space);
NormalizeFileExtensions(extensions);
currentLanguage.SetFileExtensions(extensions, file.PropertyLocation);
}
}
//
// Add/Replace File Extensions
//
else if ((match = addReplaceExtensionsRegex.Match(identifier)) != null && match.Success)
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else
{
TextFileLanguage.PropertyChange propertyChange;
if (match.Groups[1].Value == "add")
{
propertyChange = TextFileLanguage.PropertyChange.Add;
}
else if (match.Groups[1].Value == "replace")
{
propertyChange = TextFileLanguage.PropertyChange.Replace;
}
else
{
throw new NotImplementedException();
}
// If we're adding to a language that already has them, we need to combine the properties.
if (propertyChange == TextFileLanguage.PropertyChange.Add &&
currentLanguage.HasFileExtensions)
{
var oldExtensions = currentLanguage.FileExtensions;
var newExtensions = value.Split(space);
NormalizeFileExtensions(newExtensions);
List <string> combinedExtensions = new List <string>(oldExtensions.Count + newExtensions.Length);
combinedExtensions.AddRange(oldExtensions);
combinedExtensions.AddRange(newExtensions);
currentLanguage.SetFileExtensions(combinedExtensions, file.PropertyLocation, propertyChange);
}
// Otherwise we can just add them as is.
else
{
var extensions = value.Split(space);
NormalizeFileExtensions(extensions);
currentLanguage.SetFileExtensions(extensions, file.PropertyLocation, propertyChange);
}
}
}
//
// Shebang Strings
//
else if (shebangStringsRegex.IsMatch(identifier))
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else if (currentLanguage.AlterLanguage)
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.NeedAddReplaceWhenAlteringLanguage(keyword)", "Shebang Strings")
);
}
else
{
var shebangStrings = value.Split(space);
currentLanguage.SetShebangStrings(shebangStrings, file.PropertyLocation);
}
}
//
// Add/Replace Shebang Strings
//
else if ((match = addReplaceShebangStringsRegex.Match(identifier)) != null && match.Success)
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else
{
TextFileLanguage.PropertyChange propertyChange;
if (match.Groups[1].Value == "add")
{
propertyChange = TextFileLanguage.PropertyChange.Add;
}
else if (match.Groups[1].Value == "replace")
{
propertyChange = TextFileLanguage.PropertyChange.Replace;
}
else
{
throw new NotImplementedException();
}
// If we're adding to a language that already has them, we need to combine the properties.
if (propertyChange == TextFileLanguage.PropertyChange.Add &&
currentLanguage.HasShebangStrings)
{
var oldShebangStrings = currentLanguage.ShebangStrings;
var newShebangStrings = value.Split(space);
List <string> combinedShebangStrings = new List <string>(oldShebangStrings.Count + newShebangStrings.Length);
combinedShebangStrings.AddRange(oldShebangStrings);
combinedShebangStrings.AddRange(newShebangStrings);
currentLanguage.SetShebangStrings(combinedShebangStrings, file.PropertyLocation, propertyChange);
}
// Otherwise we can just add them as is.
else
{
var shebangStrings = value.Split(space);
currentLanguage.SetShebangStrings(shebangStrings, file.PropertyLocation, propertyChange);
}
}
}
//
// Simple Identifier
//
else if (identifier == "simple identifier")
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else if (nonASCIILettersRegex.IsMatch(value))
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.SimpleIdentifierMustOnlyBeASCIILetters(name)", value)
);
}
else
{
currentLanguage.SetSimpleIdentifier(value, file.PropertyLocation);
}
}
//
// Line Comments
//
else if (lineCommentsRegex.IsMatch(identifier))
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else
{
var lineCommentSymbols = value.Split(space);
currentLanguage.SetLineCommentSymbols(lineCommentSymbols, file.PropertyLocation);
}
}
//
// Block Comments
//
else if (blockCommentsRegex.IsMatch(identifier))
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else
{
var blockCommentStrings = value.Split(space);
if (blockCommentStrings.Length % 2 != 0)
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.BlockCommentsMustHaveAnEvenNumberOfSymbols")
);
}
else
{
List <BlockCommentSymbols> blockCommentSymbols =
new List <BlockCommentSymbols>(blockCommentStrings.Length / 2);
for (int i = 0; i < blockCommentStrings.Length; i += 2)
{
blockCommentSymbols.Add(
new BlockCommentSymbols(blockCommentStrings[i], blockCommentStrings[i + 1])
);
}
currentLanguage.SetBlockCommentSymbols(blockCommentSymbols, file.PropertyLocation);
}
}
}
//
// Member Operator
//
else if (memberOperatorRegex.IsMatch(identifier))
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else
{
currentLanguage.SetMemberOperator(value, file.PropertyLocation);
}
}
//
// Line Extender
//
else if (identifier == "line extender")
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else
{
currentLanguage.SetLineExtender(value, file.PropertyLocation);
}
}
//
// Enum Values
//
else if (enumValuesRegex.IsMatch(identifier))
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else
{
string lcValue = value.ToLower();
if (lcValue == "global")
{
currentLanguage.SetEnumValues(Language.EnumValues.Global, file.PropertyLocation);
}
else if (lcValue == "under type")
{
currentLanguage.SetEnumValues(Language.EnumValues.UnderType, file.PropertyLocation);
}
else if (lcValue == "under parent")
{
currentLanguage.SetEnumValues(Language.EnumValues.UnderParent, file.PropertyLocation);
}
else
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.InvalidEnumValue(value)", value)
);
}
}
}
//
// Case Sensitive
//
else if (caseSensitiveRegex.IsMatch(identifier))
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else
{
string lcValue = value.ToLower();
if (yesRegex.IsMatch(lcValue))
{
currentLanguage.SetCaseSensitive(true, file.PropertyLocation);
}
else if (noRegex.IsMatch(lcValue))
{
currentLanguage.SetCaseSensitive(false, file.PropertyLocation);
}
else
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.UnrecognizedValue(keyword, value)", "Case Sensitive", value)
);
}
}
}
//
// Prototype Enders
//
// Use identifier and not lcIdentifier to keep the case of the comment type. The regex will compensate.
else if ((match = prototypeEndersRegex.Match(identifier)) != null && match.Success)
{
if (currentLanguage == null)
{
AddNeedsLanguageError(file, identifier);
}
else
{
string commentType = match.Groups[1].Value;
string[] enderStrings = value.Split(space);
var enders = new TextFilePrototypeEnders(commentType, file.PropertyLocation);
enders.AddEnderStrings(enderStrings);
currentLanguage.AddPrototypeEnders(enders);
}
}
//
// Deprecated keywords
//
else if (ignorePrefixesRegex.IsMatch(identifier) ||
identifier == "perl package" ||
identifier == "full language support")
{
// Ignore
}
//
// Unrecognized keywords
//
else
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.UnrecognizedKeyword(keyword)", identifier)
);
}
} // while (file.Get)
file.Close();
}
if (errorList.Count == previousErrorCount)
{
return(true);
}
else
{
return(false);
}
}
