public void StringSlice_Basics()
{
StringSlice slice = "Hello, there!";
Assert.Equal(13, slice.Length);
Assert.Equal('H', slice[0]);
Assert.Equal(' ', slice[6]);
Assert.True(slice.StartsWith('H'));
Assert.False(slice.StartsWith('h'));
Assert.True(slice.StartsWith("Hello"));
Assert.False(slice.StartsWith("hello"));
Assert.True(slice.StartsWith("hello", StringComparison.OrdinalIgnoreCase));
slice = slice.Substring(7, 3);
Assert.Equal(3, slice.Length);
Assert.Equal(0, slice.CompareTo("the"));
StringBuilder result = new StringBuilder();
slice.AppendTo(result);
Assert.Equal(3, result.Length);
Assert.Equal("the", result.ToString());
slice = slice.Substring(3);
Assert.Equal(0, slice.Length);
}
public void StartsWithPartialString()
{
var raw = "hello world";
var str = new StringSlice(raw, 6, raw.Length);
Assert.That(str.StartsWith("world"), Is.True);
Assert.That(str.StartsWith("hello"), Is.False);
}
public void StartsWithFullString()
{
var raw = "hello world";
var str = new StringSlice(raw);
Assert.That(str.StartsWith("hello"), Is.True);
Assert.That(str.StartsWith("world"), Is.False);
}
public void StartsWithBeyondEnd()
{
var raw = "hello world";
var str = new StringSlice(raw, 6, 9);
Assert.That(str.StartsWith("world"), Is.False);
}
/// <summary>
/// Returns the branch name for source control.
/// </summary>
static public string GetSourceControlBranchName()
{
try
{
if (Directory.Exists(".git"))
{
string headData = File.ReadAllText(".git/HEAD");
foreach (var line in StringSlice.EnumeratedSplit(headData, new char[] { '\n' }, StringSplitOptions.RemoveEmptyEntries))
{
TagData tag = TagData.Parse(line, TagStringParser.RichTextDelimiters);
if (tag.Id == "ref")
{
StringSlice data = tag.Data;
if (data.StartsWith("refs/heads/"))
{
data = data.Substring(11);
}
return(data.ToString());
}
}
}
// TODO: More version control types? svn?
return(null);
}
catch (Exception e)
{
Debug.LogException(e);
return(null);
}
}
private void EmptyChecks(StringSlice empty)
{
// Length should be zero
Assert.Equal(0, empty.Length);
// StartsWith should fail gracefully
Assert.False(empty.StartsWith(':'));
Assert.False(empty.StartsWith((StringSlice)":"));
// CompareTo should fail gracefully
Assert.Equal(-1, empty.CompareTo(":"));
// AppendTo shouldn't do anything
StringBuilder result = new StringBuilder();
empty.AppendTo(result);
Assert.Equal(0, result.Length);
// Substring(0) should work
StringSlice other = empty.Substring(0);
}
static private LineResult ParseLine(ref ParseState ioState, StringSlice ioLine)
{
StringSlice lineContents = ioLine.TrimStart(BlockParser.TrimCharsWithSpace).TrimEnd(BlockParser.TrimCharsWithoutSpace);
StringSlice lineComment = StringSlice.Empty;
if (lineContents.IsEmpty)
{
if (ioState.CurrentState != BlockState.InData)
{
return(LineResult.Empty);
}
}
int commentIdx = lineContents.IndexOf(ioState.Rules.CommentPrefix);
if (commentIdx >= 0)
{
lineComment = lineContents.Substring(commentIdx + ioState.Rules.CommentPrefix.Length).TrimStart(BlockParser.TrimCharsWithSpace);
lineContents = lineContents.Substring(0, commentIdx).TrimEnd(BlockParser.TrimCharsWithSpace);
}
try
{
bool bSuccess = true;
bool bProcessedCommand = false;
if (!lineContents.IsEmpty)
{
for (int i = 0; i < ioState.PrefixPriorities.Length && !bProcessedCommand; ++i)
{
PrefixType type = ioState.PrefixPriorities[i];
switch (type)
{
case PrefixType.BlockId:
{
if (lineContents.StartsWith(ioState.Rules.BlockIdPrefix))
{
lineContents = lineContents.Substring(ioState.Rules.BlockIdPrefix.Length);
bSuccess &= TryStartBlock(ref ioState, lineContents);
bProcessedCommand = true;
}
break;
}
case PrefixType.BlockMeta:
{
if (ShouldCheckMeta(ref ioState) && lineContents.StartsWith(ioState.Rules.BlockMetaPrefix))
{
lineContents = lineContents.Substring(ioState.Rules.BlockMetaPrefix.Length);
bSuccess &= TryEvaluateMeta(ref ioState, lineContents);
bProcessedCommand = true;
}
break;
}
case PrefixType.BlockHeaderEnd:
{
if (lineContents.StartsWith(ioState.Rules.BlockHeaderEndPrefix))
{
lineContents = lineContents.Substring(ioState.Rules.BlockHeaderEndPrefix.Length);
bSuccess &= TryEndHeader(ref ioState, lineContents);
bProcessedCommand = true;
}
break;
}
case PrefixType.BlockContent:
{
if (lineContents.StartsWith(ioState.Rules.BlockContentPrefix))
{
lineContents = lineContents.Substring(ioState.Rules.BlockContentPrefix.Length);
bSuccess &= TryAddContent(ref ioState, lineContents);
bProcessedCommand = true;
}
break;
}
case PrefixType.BlockEnd:
{
if (lineContents.StartsWith(ioState.Rules.BlockEndPrefix))
{
lineContents = lineContents.Substring(ioState.Rules.BlockEndPrefix.Length);
bSuccess &= TryEndBlock(ref ioState, lineContents);
bProcessedCommand = true;
}
break;
}
case PrefixType.PackageMeta:
{
if (ShouldCheckPackageMeta(ref ioState) && lineContents.StartsWith(ioState.Rules.PackageMetaPrefix))
{
lineContents = lineContents.Substring(ioState.Rules.PackageMetaPrefix.Length);
bSuccess &= TryEvaluatePackage(ref ioState, lineContents);
bProcessedCommand = true;
}
break;
}
}
}
}
if (!bProcessedCommand)
{
if (ioState.CurrentState == BlockState.InData && ioState.Rules.RequireExplicitBlockContent && !string.IsNullOrEmpty(ioState.Rules.BlockContentPrefix))
{
BlockParser.LogError(ioState.Position, "Cannot add content '{0}', must have content prefix '{1}'", lineContents, ioState.Rules.BlockContentPrefix);
bSuccess = false;
}
else if (!lineContents.IsEmpty || ioState.CurrentState == BlockState.InData)
{
bSuccess &= TryAddContent(ref ioState, lineContents);
}
}
if (!lineComment.IsEmpty)
{
bSuccess &= TryAddComment(ref ioState, lineComment);
}
ioState.Error |= !bSuccess;
return(bSuccess ? LineResult.Error : LineResult.NoError);
}
catch (Exception e)
{
UnityEngine.Debug.LogException(e);
return(LineResult.Exception);
}
}
/// <summary>
/// Parses a tag's contents into data.
/// </summary>
static public void Parse(StringSlice inSlice, IDelimiterRules inDelimiters, out TagData outTagData)
{
if (inDelimiters == null)
{
throw new ArgumentNullException("inDelimiters");
}
StringSlice tag = inSlice;
tag = tag.Trim(MinimalWhitespaceChars);
bool bRemovedTagBoundaries = false;
if (tag.StartsWith(inDelimiters.TagStartDelimiter))
{
tag = tag.Substring(inDelimiters.TagStartDelimiter.Length);
bRemovedTagBoundaries = true;
}
if (tag.EndsWith(inDelimiters.TagEndDelimiter))
{
tag = tag.Substring(0, tag.Length - inDelimiters.TagEndDelimiter.Length);
bRemovedTagBoundaries = true;
}
if (bRemovedTagBoundaries)
{
tag = tag.Trim(MinimalWhitespaceChars);
}
if (inSlice.Length == 0)
{
outTagData = default(TagData);
return;
}
ClosingTagState closeState = 0;
char endDelim = inDelimiters.RegionCloseDelimiter;
if (endDelim != 0)
{
if (tag.StartsWith(endDelim))
{
closeState |= ClosingTagState.Start;
tag = tag.Substring(1);
}
if (tag.EndsWith(endDelim))
{
closeState |= ClosingTagState.End;
tag = tag.Substring(0, tag.Length - 1);
}
}
if (closeState != 0)
{
tag = tag.Trim(MinimalWhitespaceChars);
}
char[] dataDelims = inDelimiters.TagDataDelimiters;
int dataDelimIdx = tag.Length;
foreach (var delim in dataDelims)
{
int idx = tag.IndexOf(delim);
if (idx >= 0 && idx < dataDelimIdx)
{
dataDelimIdx = idx;
if (idx <= 0)
{
break;
}
}
}
if (dataDelimIdx >= tag.Length)
{
outTagData.Id = tag;
outTagData.Data = StringSlice.Empty;
}
else
{
outTagData.Id = tag.Substring(0, dataDelimIdx).TrimEnd(MinimalWhitespaceChars);
outTagData.Data = tag.Substring(dataDelimIdx).TrimStart(dataDelims).TrimStart(MinimalWhitespaceChars);
}
outTagData.m_CloseState = closeState;
}
/// <summary>
/// Attempts to parse a string slice into a variant.
/// </summary>
static public bool TryParse(StringSlice inSlice, bool inbAllowImplicitHash, out Variant outValue)
{
inSlice = inSlice.Trim();
if (inSlice.Length <= 0 || inSlice.Equals("null", true))
{
outValue = Variant.Null;
return(true);
}
if (inSlice.StartsWith(StringHashing.CustomHashPrefix) || inSlice.StartsWith(StringHashing.StringPrefix) ||
(inSlice.Length >= 2 && inSlice.StartsWith('"') && inSlice.EndsWith('"')))
{
StringHash32 hash;
if (StringHash32.TryParse(inSlice, out hash))
{
outValue = hash;
return(true);
}
}
bool bBoolVal;
if (StringParser.TryParseBool(inSlice, out bBoolVal))
{
outValue = new Variant(bBoolVal);
return(true);
}
int intVal;
if (StringParser.TryParseInt(inSlice, out intVal))
{
outValue = new Variant(intVal);
return(true);
}
uint uintVal;
if (StringParser.TryParseUInt(inSlice, out uintVal))
{
outValue = new Variant(uintVal);
return(true);
}
float floatVal;
if (StringParser.TryParseFloat(inSlice, out floatVal))
{
outValue = new Variant(floatVal);
return(true);
}
if (inbAllowImplicitHash)
{
StringHash32 hash;
if (StringHash32.TryParse(inSlice, out hash))
{
outValue = hash;
return(true);
}
}
outValue = default(Variant);
return(false);
}
