private string ExtractId(LGFileParser.ImportDefinitionContext parseTree)
{
// content: [xxx](yyy)
var content = parseTree.GetText();
var lastOpenBracketIndex = content.LastIndexOf('(');
return(content.Substring(lastOpenBracketIndex + 1, content.Length - lastOpenBracketIndex - 2));
}
/// <summary>
/// Initializes a new instance of the <see cref="LGImport"/> class.
/// </summary>
/// <param name="parseTree">The parse tree of this template.</param>
/// <param name="source">Source of this import.</param>
public LGImport(LGFileParser.ImportDefinitionContext parseTree, string source = "")
{
ParseTree = parseTree;
Source = source;
Description = ExtractDescription(parseTree);
Id = ExtractId(parseTree);
}
private string ExtractDescription(LGFileParser.ImportDefinitionContext parseTree)
{
// content: [xxx](yyy)
var content = parseTree.GetText();
var closeSquareBracketIndex = content.IndexOf(']');
return(content.Substring(1, closeSquareBracketIndex - 1));
}
public override object VisitImportDefinition([NotNull] LGFileParser.ImportDefinitionContext context)
{
var importStr = context.IMPORT().GetText();
var matchResult = ImportRegex.Match(importStr);
if (matchResult.Success && matchResult.Groups.Count == 3)
{
var description = matchResult.Groups[1].Value?.Trim();
var id = matchResult.Groups[2].Value?.Trim();
var sourceRange = new SourceRange(context, this.templates.Id);
var import = new TemplateImport(description, id, sourceRange);
this.templates.Imports.Add(import);
}
return(null);
}
/// <inheritdoc/>
public override object VisitImportDefinition([NotNull] LGFileParser.ImportDefinitionContext context)
{
var importStr = context.IMPORT().GetText();
var matchResult = ImportRegex.Match(importStr);
if (!matchResult.Success || (matchResult.Groups.Count != 3 && matchResult.Groups.Count != 4))
{
_templates.Diagnostics.Add(BuildTemplatesDiagnostic(TemplateErrors.ImportFormatError, context));
return(null);
}
var description = matchResult.Groups[1].Value?.Trim();
var id = matchResult.Groups[2].Value?.Trim();
var sourceRange = new SourceRange(context, _templates.Source);
var import = new TemplateImport(description, id, sourceRange);
if (matchResult.Groups.Count == 4)
{
var asAlias = matchResult.Groups[3].Value?.Trim();
if (!string.IsNullOrWhiteSpace(asAlias))
{
var asAliasArray = Regex.Split(asAlias, @"\s+");
if (asAliasArray.Length != 2 || asAliasArray[0] != "as")
{
_templates.Diagnostics.Add(BuildTemplatesDiagnostic(TemplateErrors.ImportFormatError, context));
return(null);
}
else
{
import.Alias = asAliasArray[1].Trim();
}
}
}
_templates.Imports.Add(import);
return(null);
}
private string ExtractId(LGFileParser.ImportDefinitionContext parseTree) => parseTree.IMPORT_PATH()?.GetText()?.Trim('(').Trim(')');
private string ExtractDescription(LGFileParser.ImportDefinitionContext parseTree) => parseTree.IMPORT_DESC()?.GetText()?.Trim('[').Trim(']');
/// <summary>
/// Enter a parse tree produced by <see cref="LGFileParser.importDefinition"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void EnterImportDefinition([NotNull] LGFileParser.ImportDefinitionContext context)
{
}
/// <summary>
/// Visit a parse tree produced by <see cref="LGFileParser.importDefinition"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitImportDefinition([NotNull] LGFileParser.ImportDefinitionContext context)
{
return(VisitChildren(context));
}