protected void ClassifyTemplateBody(ITextSnapshot snapshot, List <ClassificationSpan> spans, TemplateRegion region, int prefixLength, int suffixLength)
{
switch (region.Kind)
{
case TemplateTokenKind.Comment:
spans.Add(
new ClassificationSpan(
new SnapshotSpan(
snapshot,
new Span(region.Start + prefixLength, region.Text.Length - (prefixLength + suffixLength))
),
_classifierProvider._commentClassType
)
);
break;
case TemplateTokenKind.Variable:
var filterInfo = DjangoVariable.Parse(region.Text);
if (filterInfo != null)
{
foreach (var curSpan in filterInfo.GetSpans())
{
spans.Add(ToClassificationSpan(curSpan, snapshot, region.Start));
}
}
break;
case TemplateTokenKind.Block:
var blockInfo = region.Block ?? DjangoBlock.Parse(region.Text);
if (blockInfo != null)
{
foreach (var curSpan in blockInfo.GetSpans())
{
spans.Add(ToClassificationSpan(curSpan, snapshot, region.Start));
}
}
else if (region.Text.Length > (prefixLength + suffixLength)) // unterminated block at end of file
{
spans.Add(
new ClassificationSpan(
new SnapshotSpan(
snapshot,
new Span(region.Start + prefixLength, region.Text.Length - (prefixLength + suffixLength))
),
_classifierProvider._classType
)
);
}
break;
}
}
/// <param name="kind">The type of template tag we are processing</param>
/// <param name="templateText">The text of the template tag which we are offering a completion in</param>
/// <param name="templateStart">The offset in the buffer where the template starts</param>
/// <param name="triggerPoint">The point in the buffer where the completion was triggered</param>
internal CompletionSet GetCompletionSet(CompletionOptions options, VsProjectAnalyzer analyzer, TemplateTokenKind kind, string templateText, int templateStart, SnapshotPoint triggerPoint, out ITrackingSpan applicableSpan)
{
int position = triggerPoint.Position - templateStart;
IEnumerable <CompletionInfo> tags;
IDjangoCompletionContext context;
applicableSpan = GetWordSpan(templateText, templateStart, triggerPoint);
switch (kind)
{
case TemplateTokenKind.Block:
var block = DjangoBlock.Parse(templateText);
if (block != null)
{
if (position <= block.ParseInfo.Start + block.ParseInfo.Command.Length)
{
// we are completing before the command
// TODO: Return a new set of tags? Do nothing? Do this based upon ctrl-space?
tags = FilterBlocks(CompletionInfo.ToCompletionInfo(analyzer.GetTags(), StandardGlyphGroup.GlyphKeyword), triggerPoint);
}
else
{
// we are in the arguments, let the block handle the completions
context = new ProjectBlockCompletionContext(analyzer, _buffer);
tags = block.GetCompletions(context, position);
}
}
else
{
// no tag entered yet, provide the known list of tags.
tags = FilterBlocks(CompletionInfo.ToCompletionInfo(analyzer.GetTags(), StandardGlyphGroup.GlyphKeyword), triggerPoint);
}
break;
case TemplateTokenKind.Variable:
var variable = DjangoVariable.Parse(templateText);
context = new ProjectBlockCompletionContext(analyzer, _buffer);
if (variable != null)
{
tags = variable.GetCompletions(context, position);
}
else
{
// show variable names
tags = CompletionInfo.ToCompletionInfo(context.Variables, StandardGlyphGroup.GlyphGroupVariable);
}
break;
default:
throw new InvalidOperationException();
}
var completions = tags
.OrderBy(tag => tag.DisplayText, StringComparer.OrdinalIgnoreCase)
.Select(tag => new DynamicallyVisibleCompletion(
tag.DisplayText,
tag.InsertionText,
StripDocumentation(tag.Documentation),
_glyphService.GetGlyph(tag.Glyph, StandardGlyphItem.GlyphItemPublic),
"tag"));
return(new FuzzyCompletionSet(
"PythonDjangoTags",
Resources.DjangoTagsCompletionSetDisplayName,
applicableSpan,
completions,
options,
CompletionComparer.UnderscoresLast));
}
public void BlockParserTests()
{
var testCases = new[] {
new {
Got = ("for x in "),
Expected = (DjangoBlock) new DjangoForBlock(new BlockParseInfo("for", "x in ", 0), 6, null, 9, -1, new[] { new Tuple <string, int>("x", 4) }),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 9,
Expected = new[] { "fob", "oar" }
},
new {
Position = 4,
Expected = new string[0]
}
}
},
new {
Got = ("for x in oar"),
Expected = (DjangoBlock) new DjangoForBlock(new BlockParseInfo("for", "x in oar", 0), 6, DjangoVariable.Variable("oar", 9), 12, -1, new[] { new Tuple <string, int>("x", 4) }),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 9,
Expected = new[] { "fob", "oar" }
},
new {
Position = 4,
Expected = new string[0]
}
}
},
new {
Got = ("for x in b"),
Expected = (DjangoBlock) new DjangoForBlock(new BlockParseInfo("for", "x in b", 0), 6, DjangoVariable.Variable("b", 9), 10, -1, new[] { new Tuple <string, int>("x", 4) }),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 10,
Expected = new [] { "fob", "oar" }
},
new {
Position = 4,
Expected = new string[0]
}
}
},
new {
Got = ("autoescape"),
Expected = (DjangoBlock) new DjangoAutoEscapeBlock(new BlockParseInfo("autoescape", "", 0), -1, -1),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 10,
Expected = new[] { "on", "off" }
}
}
},
new {
Got = ("autoescape on"),
Expected = (DjangoBlock) new DjangoAutoEscapeBlock(new BlockParseInfo("autoescape", " on", 0), 11, 2),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 10,
Expected = new string[0]
}
}
},
new {
Got = ("comment"),
Expected = (DjangoBlock) new DjangoArgumentlessBlock(new BlockParseInfo("comment", "", 0)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 0,
Expected = new string[0]
}
}
},
new {
Got = ("spaceless"),
Expected = (DjangoBlock) new DjangoSpacelessBlock(new BlockParseInfo("spaceless", "", 0)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 0,
Expected = new string[0]
}
}
},
new {
Got = ("filter "),
Expected = (DjangoBlock) new DjangoFilterBlock(new BlockParseInfo("filter", " ", 0), DjangoVariable.Variable("", 7)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 7,
Expected = new [] { "cut", "lower" }
}
}
},
new {
Got = ("ifequal "),
Expected = (DjangoBlock) new DjangoIfOrIfNotEqualBlock(new BlockParseInfo("ifequal", " ", 0), DjangoVariable.Variable("", 8)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 8,
Expected = new [] { "fob", "oar" }
}
}
},
new {
Got = ("ifequal fob "),
Expected = (DjangoBlock) new DjangoIfOrIfNotEqualBlock(new BlockParseInfo("ifequal", " fob ", 0), DjangoVariable.Variable("fob", 8)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 12,
Expected = new [] { "fob", "oar" }
}
}
},
new {
Got = ("if "),
Expected = (DjangoBlock) new DjangoIfBlock(new BlockParseInfo("if", " ", 0)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 3,
Expected = new [] { "fob", "oar", "not" }
}
}
},
new {
Got = ("if fob "),
Expected = (DjangoBlock) new DjangoIfBlock(new BlockParseInfo("if", " fob ", 0), new BlockClassification(new Span(3, 3), Classification.Identifier)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 7,
Expected = new [] { "and", "or" }
}
}
},
new {
Got = ("if fob and "),
Expected = (DjangoBlock) new DjangoIfBlock(new BlockParseInfo("if", " fob and ", 0), new BlockClassification(new Span(3, 3), Classification.Identifier), new BlockClassification(new Span(7, 3), Classification.Keyword)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 11,
Expected = new [] { "fob", "oar", "not" }
}
}
},
new {
Got = ("firstof "),
Expected = (DjangoBlock) new DjangoMultiVariableArgumentBlock(new BlockParseInfo("firstof", " ", 0)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 8,
Expected = new [] { "fob", "oar" }
}
}
},
new {
Got = ("firstof fob|"),
Expected = (DjangoBlock) new DjangoMultiVariableArgumentBlock(new BlockParseInfo("firstof", " fob|", 0), DjangoVariable.Variable("fob", 8)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 12,
Expected = new [] { "cut", "lower" }
}
}
},
new {
Got = ("spaceless "),
Expected = (DjangoBlock) new DjangoSpacelessBlock(new BlockParseInfo("spaceless", " ", 0)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 10,
Expected = new string[0]
}
}
},
new {
Got = ("widthratio "),
Expected = (DjangoBlock) new DjangoWidthRatioBlock(new BlockParseInfo("widthratio", " ", 0)),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 11,
Expected = new [] { "fob", "oar" }
}
}
},
new {
Got = ("templatetag "),
Expected = (DjangoBlock) new DjangoTemplateTagBlock(new BlockParseInfo("templatetag", " ", 0), 11, null),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 11,
Expected = new [] { "openblock", "closeblock", "openvariable", "closevariable", "openbrace", "closebrace", "opencomment", "closecomment" }
}
}
},
new {
Got = ("templatetag open"),
Expected = (DjangoBlock) new DjangoTemplateTagBlock(new BlockParseInfo("templatetag", " open", 0), 11, null),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 15,
Expected = new [] { "openblock", "openvariable", "openbrace", "opencomment" }
}
}
},
new {
Got = ("templatetag openblock "),
Expected = (DjangoBlock) new DjangoTemplateTagBlock(new BlockParseInfo("templatetag", " openblock ", 0), 11, "openblock"),
Context = TestCompletionContext.Simple,
Completions = new[] {
new {
Position = 22,
Expected = new string[0]
}
}
},
};
foreach (var testCase in testCases)
{
Console.WriteLine(testCase.Got);
var got = DjangoBlock.Parse(testCase.Got);
ValidateBlock(testCase.Expected, got);
foreach (var completionCase in testCase.Completions)
{
var completions = new HashSet <string>(got.GetCompletions(testCase.Context, completionCase.Position).Select(x => x.DisplayText));
Assert.AreEqual(completionCase.Expected.Length, completions.Count);
var expected = new HashSet <string>(completionCase.Expected);
foreach (var value in completions)
{
Assert.IsTrue(expected.Contains(value));
}
}
}
}