/* Function: Start_CantDefinePropertyError
* A helper function used only by <Start()> and its other helper functions which adds an error saying the passed
* property cannot be defined for the current language type.
*/
private void Start_CantDefinePropertyError(ConfigFileLanguage configFileLanguage, Language.LanguageType type,
Path sourceFile, string propertyName, Errors.ErrorList errorList)
{
string typeString;
if (type == Language.LanguageType.TextFile)
{
typeString = "TextFiles";
}
else if (type == Language.LanguageType.Container)
{
typeString = "Containers";
}
else if (type == Language.LanguageType.FullSupport)
{
typeString = "FullLanguageSupport";
}
else // BasicSupport
{
typeString = "BasicLanguageSupport";
}
errorList.Add(
Locale.Get("NaturalDocs.Engine", "Languages.txt.CantDefinePropertyFor" + typeString + "(property, language)",
propertyName, configFileLanguage.Name),
sourceFile, configFileLanguage.LineNumber
);
}
// Group: Loading Functions
// __________________________________________________________________________
/* Function: Load
*
* Loads the configuration file and parses it. Redundant information will be simplified out, such as an Alter
* Language section that applies to a language defined in the same file.
*
* Parameters:
*
* filename - The <Path> where the file is located.
* fileLanguages - Returns a list of <ConfigFileLanguages> in no particular order.
* fileIgnoredExtensions - Returns any ignored extensions as a string array.
* errorList - If it couldn't successfully parse the file it will add error messages to this list.
*
* Returns:
*
* Whether it was able to successfully load and parse the file without any errors.
*/
public bool Load(Path filename, out List <ConfigFileLanguage> fileLanguages,
out List <string> fileIgnoredExtensions, Errors.ErrorList errorList)
{
fileLanguages = new List <ConfigFileLanguage>();
fileIgnoredExtensions = new List <string>();
StringTable <ConfigFileLanguage> fileLanguageNames =
new StringTable <ConfigFileLanguage>(Engine.Languages.Manager.KeySettingsForLanguageName);
int previousErrorCount = errorList.Count;
using (ConfigFile file = new ConfigFile())
{
// Can't make identifiers lowercase here or we'd lose the case of the comment type in prototype ender lines.
bool openResult = file.Open(filename,
ConfigFile.FileFormatFlags.CondenseIdentifierWhitespace |
ConfigFile.FileFormatFlags.CondenseValueWhitespace,
errorList);
if (openResult == false)
{
return(false);
}
string identifier, lcIdentifier, value;
ConfigFileLanguage currentLanguage = null;
// We need this in addition to ConfigFileLanguage.AlterLanguage because an entry altering a type defined in the
// same file would be combined into the original, yet we still need to know if that entry is Alter to properly
// detect whether we need to use Add/Replace with certain properties.
bool alterCurrentLanguage = false;
char[] space = { ' ' };
System.Text.RegularExpressions.Match match;
while (file.Get(out identifier, out value))
{
lcIdentifier = identifier.ToLower();
//
// Ignore Extensions
//
if (ignoreExtensionsRegex.IsMatch(lcIdentifier))
{
currentLanguage = null;
string[] ignoredExtensionsArray = value.Split(space);
fileIgnoredExtensions.AddRange(ignoredExtensionsArray);
}
//
// Language
//
else if (lcIdentifier == "language")
{
if (fileLanguageNames.ContainsKey(value))
{
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 = fileLanguageNames[value];
alterCurrentLanguage = false;
}
else
{
currentLanguage = new ConfigFileLanguage(value, false, file.LineNumber);
alterCurrentLanguage = false;
fileLanguages.Add(currentLanguage);
fileLanguageNames.Add(value, currentLanguage);
}
}
//
// Alter Language
//
else if (alterLanguageRegex.IsMatch(lcIdentifier))
{
// If this language already exists, collapse it into the current definition.
if (fileLanguageNames.ContainsKey(value))
{
currentLanguage = fileLanguageNames[value];
alterCurrentLanguage = true;
}
// If it doesn't exist, create the new language anyway with the alter flag set because it may exist in another
// file.
else
{
currentLanguage = new ConfigFileLanguage(value, true, file.LineNumber);
alterCurrentLanguage = true;
fileLanguages.Add(currentLanguage);
fileLanguageNames.Add(value, currentLanguage);
}
}
//
// Aliases
//
else if (aliasesRegex.IsMatch(lcIdentifier))
{
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else if (alterCurrentLanguage == true)
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.NeedAddReplaceWhenAlteringLanguage(keyword)", "Aliases")
);
}
else
{
currentLanguage.Aliases = value.Split(space);
currentLanguage.AddAliases = false;
}
}
//
// Add/Replace Aliases
//
else if ((match = addReplaceAliasesRegex.Match(lcIdentifier)) != null && match.Success)
{
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else if (alterCurrentLanguage == true && match.Groups[1].Value == "add" &&
currentLanguage.Aliases != null)
{
string[] addAliases = value.Split(space);
string[] newAliases = new string[addAliases.Length + currentLanguage.Aliases.Length];
currentLanguage.Aliases.CopyTo(newAliases, 0);
addAliases.CopyTo(newAliases, currentLanguage.Aliases.Length);
currentLanguage.Aliases = newAliases;
currentLanguage.AddAliases = true;
}
// Covers "replace" when altering a language, "add" and "replace" when not altering a language (no point
// in adding an error when we can just tolerate it, and "replace" when altering a language that doesn't have
// anything defined.
else
{
currentLanguage.Aliases = value.Split(space);
currentLanguage.AddAliases = (match.Groups[1].Value == "add");
}
}
//
// Extensions
//
else if (extensionsRegex.IsMatch(lcIdentifier))
{
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else if (alterCurrentLanguage == true)
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.NeedAddReplaceWhenAlteringLanguage(keyword)", "Extensions")
);
}
else
{
currentLanguage.Extensions = value.Split(space);
currentLanguage.AddExtensions = false;
}
}
//
// Add/Replace Extensions
//
else if ((match = addReplaceExtensionsRegex.Match(lcIdentifier)) != null && match.Success)
{
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else if (alterCurrentLanguage == true && match.Groups[1].Value == "add" &&
currentLanguage.Extensions != null)
{
string[] addExtensions = value.Split(space);
string[] newExtensions = new string[addExtensions.Length + currentLanguage.Extensions.Length];
currentLanguage.Extensions.CopyTo(newExtensions, 0);
addExtensions.CopyTo(newExtensions, currentLanguage.Extensions.Length);
currentLanguage.Extensions = newExtensions;
currentLanguage.AddExtensions = true;
}
// Covers "replace" when altering a language, "add" and "replace" when not altering a language (no point
// in adding an error when we can just tolerate it, and "replace" when altering a language that doesn't have
// anything defined.
else
{
currentLanguage.Extensions = value.Split(space);
currentLanguage.AddExtensions = (match.Groups[1].Value == "add");
}
}
//
// Shebang Strings
//
else if (shebangStringsRegex.IsMatch(lcIdentifier))
{
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else if (alterCurrentLanguage == true)
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.NeedAddReplaceWhenAlteringLanguage(keyword)", "Shebang Strings")
);
}
else
{
currentLanguage.ShebangStrings = value.Split(space);
currentLanguage.AddShebangStrings = false;
}
}
//
// Add/Replace Shebang Strings
//
else if ((match = addReplaceShebangStringsRegex.Match(lcIdentifier)) != null && match.Success)
{
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else if (alterCurrentLanguage == true && match.Groups[1].Value == "add" &&
currentLanguage.ShebangStrings != null)
{
string[] addShebangStrings = value.Split(space);
string[] newShebangStrings = new string[addShebangStrings.Length +
currentLanguage.ShebangStrings.Length];
currentLanguage.ShebangStrings.CopyTo(newShebangStrings, 0);
addShebangStrings.CopyTo(newShebangStrings, currentLanguage.ShebangStrings.Length);
currentLanguage.ShebangStrings = newShebangStrings;
currentLanguage.AddShebangStrings = true;
}
// Covers "replace" when altering a language, "add" and "replace" when not altering a language (no point
// in adding an error when we can just tolerate it, and "replace" when altering a language that doesn't have
// anything defined.
else
{
currentLanguage.ShebangStrings = value.Split(space);
currentLanguage.AddShebangStrings = (match.Groups[1].Value == "add");
}
}
//
// Simple Identifier
//
else if (lcIdentifier == "simple identifier")
{
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else if (nonASCIILettersRegex.IsMatch(value))
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.SimpleIdentifierMustOnlyBeASCIILetters(name)", value)
);
}
else
{
currentLanguage.SimpleIdentifier = value;
}
}
//
// Line Comments
//
else if (lineCommentsRegex.IsMatch(lcIdentifier))
{
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else
{
currentLanguage.LineCommentStrings = value.Split(space);
}
}
//
// Block Comments
//
else if (blockCommentsRegex.IsMatch(lcIdentifier))
{
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else
{
string[] newBlockCommentStrings = value.Split(space);
if (newBlockCommentStrings.Length % 2 != 0)
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.BlockCommentsMustHaveAnEvenNumberOfSymbols")
);
}
else
{
currentLanguage.BlockCommentStringPairs = newBlockCommentStrings;
}
}
}
//
// Member Operator
//
else if (memberOperatorRegex.IsMatch(lcIdentifier))
{
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else
{
currentLanguage.MemberOperator = value;
}
}
//
// Line Extender
//
else if (lcIdentifier == "line extender")
{
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else
{
currentLanguage.LineExtender = value;
}
}
//
// Enum Values
//
else if (enumValuesRegex.IsMatch(lcIdentifier))
{
string lcValue = value.ToLower();
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else if (lcValue == "global")
{
currentLanguage.EnumValue = Language.EnumValues.Global;
}
else if (lcValue == "under type")
{
currentLanguage.EnumValue = Language.EnumValues.UnderType;
}
else if (lcValue == "under parent")
{
currentLanguage.EnumValue = Language.EnumValues.UnderParent;
}
else
{
file.AddError(
Locale.Get("NaturalDocs.Engine", "Languages.txt.InvalidEnumValue(value)", value)
);
}
}
//
// Case Sensitive
//
else if (caseSensitiveRegex.IsMatch(lcIdentifier))
{
string lcValue = value.ToLower();
if (currentLanguage == null)
{
NeedsLanguageError(file, identifier);
}
else if (yesRegex.IsMatch(lcValue))
{
currentLanguage.CaseSensitive = true;
}
else if (noRegex.IsMatch(lcValue))
{
currentLanguage.CaseSensitive = false;
}
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)
{
NeedsLanguageError(file, identifier);
}
else
{
string commentType = match.Groups[1].Value;
string[] enderStrings = value.Split(space);
currentLanguage.SetPrototypeEnderStrings(commentType, enderStrings);
}
}
//
// Deprecated keywords
//
else if (ignorePrefixesRegex.IsMatch(lcIdentifier) ||
lcIdentifier == "perl package" || lcIdentifier == "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);
}
}
/* Function: Start_AddLanguage
* A helper function that is used only by <Start()> to add a <ConfigFileLanguage> into <languages>.
* Returns whether it was able to do so without any errors.
*/
private bool Start_AddLanguage(ConfigFileLanguage configFileLanguage, Path sourceFile, bool isSystemFile,
StringSet ignoredExtensions, Errors.ErrorList errorList)
{
bool success = true;
// Validate or create the language.
if (configFileLanguage.AlterLanguage == true)
{
// If altering a language that doesn't exist at all, at least not in the config files...
if (languages.Contains(configFileLanguage.Name) == false ||
languages[configFileLanguage.Name].InConfigFiles == false)
{
errorList.Add(
Locale.Get("NaturalDocs.Engine", "Languages.txt.AlteredLanguageDoesntExist(name)", configFileLanguage.Name),
sourceFile, configFileLanguage.LineNumber
);
success = false;
}
}
else // define language, not alter
{
// Error if defining a language that already exists in the config files. Having it exist otherwise is fine.
if (languages.Contains(configFileLanguage.Name))
{
if (languages[configFileLanguage.Name].InConfigFiles == true)
{
errorList.Add(
Locale.Get("NaturalDocs.Engine", "Languages.txt.LanguageAlreadyExists(name)", configFileLanguage.Name),
sourceFile, configFileLanguage.LineNumber
);
success = false;
}
}
else
{
Language newLanguage = new Language(this, configFileLanguage.Name);
languages.Add(newLanguage);
}
if (isSystemFile)
{
languages[configFileLanguage.Name].InSystemFile = true;
}
else
{
languages[configFileLanguage.Name].InProjectFile = true;
}
}
if (success == false)
{
return(false);
}
// Apply the properties.
Language language = languages[configFileLanguage.Name];
if (configFileLanguage.SimpleIdentifier != null)
{
language.SimpleIdentifier = configFileLanguage.SimpleIdentifier;
}
if (configFileLanguage.LineCommentStrings != null)
{
if (language.Type != Language.LanguageType.BasicSupport)
{
Start_CantDefinePropertyError(configFileLanguage, language.Type, sourceFile, "Line Comment", errorList);
success = false;
}
else
{
language.LineCommentStrings = configFileLanguage.LineCommentStrings;
}
}
if (configFileLanguage.BlockCommentStringPairs != null)
{
if (language.Type != Language.LanguageType.BasicSupport)
{
Start_CantDefinePropertyError(configFileLanguage, language.Type, sourceFile, "Block Comment", errorList);
success = false;
}
else
{
language.BlockCommentStringPairs = configFileLanguage.BlockCommentStringPairs;
}
}
if (configFileLanguage.MemberOperator != null)
{
if (language.Type != Language.LanguageType.BasicSupport && language.Type != Language.LanguageType.TextFile)
{
Start_CantDefinePropertyError(configFileLanguage, language.Type, sourceFile, "Member Operator", errorList);
success = false;
}
else
{
language.MemberOperator = configFileLanguage.MemberOperator;
}
}
if (configFileLanguage.LineExtender != null)
{
if (language.Type != Language.LanguageType.BasicSupport)
{
Start_CantDefinePropertyError(configFileLanguage, language.Type, sourceFile, "Line Extender", errorList);
success = false;
}
else
{
language.LineExtender = configFileLanguage.LineExtender;
}
}
if (configFileLanguage.EnumValue != null)
{
if (language.Type != Language.LanguageType.BasicSupport && language.Type != Language.LanguageType.TextFile)
{
Start_CantDefinePropertyError(configFileLanguage, language.Type, sourceFile, "Enum Value", errorList);
success = false;
}
else
{
language.EnumValue = (Language.EnumValues)configFileLanguage.EnumValue;
}
}
if (configFileLanguage.CaseSensitive != null)
{
if (language.Type != Language.LanguageType.BasicSupport && language.Type != Language.LanguageType.TextFile)
{
Start_CantDefinePropertyError(configFileLanguage, language.Type, sourceFile, "Case Sensitive", errorList);
success = false;
}
else
{
language.CaseSensitive = (bool)configFileLanguage.CaseSensitive;
}
}
string[] commentTypeNamesWithPrototypeEnders = configFileLanguage.GetCommentTypeNamesWithPrototypeEnders();
if (commentTypeNamesWithPrototypeEnders != null)
{
if (language.Type != Language.LanguageType.BasicSupport)
{
Start_CantDefinePropertyError(configFileLanguage, language.Type, sourceFile, "Prototype Enders", errorList);
success = false;
}
else
{
foreach (string commentTypeName in commentTypeNamesWithPrototypeEnders)
{
CommentTypes.CommentType commentType = EngineInstance.CommentTypes.FromName(commentTypeName);
if (commentType == null)
{
errorList.Add(
Locale.Get("NaturalDocs.Engine", "Languages.txt.PrototypeEnderCommentTypeDoesntExist(name)", commentTypeName),
sourceFile, configFileLanguage.LineNumber
);
success = false;
}
else
{
string[] prototypeEnderStrings = configFileLanguage.GetPrototypeEnderStrings(commentTypeName);
PrototypeEnders prototypeEnders = new PrototypeEnders(prototypeEnderStrings);
language.SetPrototypeEnders(commentType.ID, prototypeEnders);
}
}
}
}
// Apply the aliases, extensions, and shebang strings.
if (configFileLanguage.Aliases != null)
{
// If using Replace Aliases, find all existing aliases pointing to this language and remove them.
if (configFileLanguage.AlterLanguage == true && configFileLanguage.AddAliases == false)
{
List <string> removedAliases = new List <string>();
foreach (KeyValuePair <string, Language> pair in aliases)
{
if ((object)pair.Value == (object)language)
{
removedAliases.Add(pair.Key);
}
}
foreach (string removedAlias in removedAliases)
{
aliases.Remove(removedAlias);
}
}
// Add new aliases.
foreach (string alias in configFileLanguage.Aliases)
{
aliases[alias] = language;
}
}
if (configFileLanguage.Extensions != null)
{
// If using Replace Extensions, find all existing extensions pointing to this language and remove them.
if (configFileLanguage.AlterLanguage == true && configFileLanguage.AddExtensions == false)
{
List <string> removedExtensions = new List <string>();
foreach (KeyValuePair <string, Language> pair in extensions)
{
if ((object)pair.Value == (object)language)
{
removedExtensions.Add(pair.Key);
}
}
foreach (string removedExtension in removedExtensions)
{
extensions.Remove(removedExtension);
}
}
// Add new extensions.
foreach (string extension in configFileLanguage.Extensions)
{
if (ignoredExtensions.Contains(extension) == false)
{
extensions[extension] = language;
}
}
}
if (configFileLanguage.ShebangStrings != null)
{
// If using Replace Shebang Strings, find all existing shebang strings pointing to this language and remove them.
if (configFileLanguage.AlterLanguage == true && configFileLanguage.AddShebangStrings == false)
{
List <string> removedShebangStrings = new List <string>();
foreach (KeyValuePair <string, Language> pair in shebangStrings)
{
if ((object)pair.Value == (object)language)
{
removedShebangStrings.Add(pair.Key);
}
}
foreach (string removedShebangString in removedShebangStrings)
{
shebangStrings.Remove(removedShebangString);
}
}
// Add new shebang strings.
foreach (string shebangString in configFileLanguage.ShebangStrings)
{
shebangStrings[shebangString] = language;
}
}
return(success);
}
