bool TryProcessSnippetLine(TextWriter writer, IndexReader reader, string line, List <MissingSnippet> missings, List <Snippet> used)
{
string key;
if (!SnippetKeyReader.TryExtractKeyFromLine(line, out key))
{
return(false);
}
writer.WriteLine($"<!-- snippet: {key} -->");
IReadOnlyList <Snippet> group;
if (!snippets.TryGetValue(key, out group))
{
var missing = new MissingSnippet(
key: key,
line: reader.Index);
missings.Add(missing);
var message = $"** Could not find snippet '{key}' **";
writer.WriteLine(message);
return(true);
}
appendSnippetGroup(key, group, writer);
used.AddRange(group);
return(true);
}
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);
}