ProcessResult Apply(IEnumerable<SnippetGroup> availableSnippets, TextWriter writer, IndexReader reader)
{
var snippets = availableSnippets.ToList();
var missingSnippets = new List<MissingSnippet>();
var usedSnippets = new List<SnippetGroup>();
string line;
while ((line = reader.ReadLine()) != null)
{
string key;
if (!keyReader(line, out key))
{
writer.WriteLine(line);
continue;
}
writer.WriteLine("<!-- snippet: {0} -->", key);
var snippetGroup = snippets.FirstOrDefault(x => x.Key == key);
if (snippetGroup == null)
{
var missingSnippet = new MissingSnippet(key: key, line: reader.Index);
missingSnippets.Add(missingSnippet);
var message = $"** Could not find key '{key}' **";
writer.WriteLine(message);
continue;
}
AppendGroup(snippetGroup, writer);
if (usedSnippets.All(x => x.Key != snippetGroup.Key))
{
usedSnippets.Add(snippetGroup);
}
}
return new ProcessResult(missingSnippets: missingSnippets, usedSnippets: usedSnippets);
}
ReadSnippets GetSnippetsFromFile(IndexReader stringReader, string file)
{
var errors = new List<ReadSnippetError>();
var snippets = new List<ReadSnippet>();
var language = GetLanguageFromFile(file);
var loopState = new LoopState();
while (true)
{
var line = stringReader.ReadLine();
if (line == null)
{
if (loopState.IsInSnippet)
{
errors.Add(new ReadSnippetError(
message: "Snippet was not closed",
file: file,
line: loopState.StartLine.Value + 1,
key: loopState.CurrentKey,
version: null));
}
break;
}
var trimmedLine = line.Trim().Replace(" ", " ").ToLowerInvariant();
if (loopState.IsInSnippet)
{
if (!loopState.EndFunc(trimmedLine))
{
loopState.SnippetLines.Add(line);
continue;
}
TryAddSnippet(stringReader, file, loopState, language, errors, snippets);
loopState.Reset();
continue;
}
IsStart(stringReader, trimmedLine, loopState);
}
return new ReadSnippets(snippets, errors);
}
