///<summary>
/// Validate the LIFT file contained in the XmlTextReader. Progress reporting is
/// supported.
///</summary>
static private string GetSchemaValidationErrors(string path, IValidationProgress progress)
{
using (XmlTextReader documentReader = new XmlTextReader(path))
{
progress.Status = "Checking for Schema errors...";
var resourceStream = typeof(LiftMultiText).Assembly.GetManifestResourceStream("Palaso.Lift.Validation.lift.rng");
if (resourceStream == null)
{
throw new Exception();
}
RelaxngValidatingReader reader = new RelaxngValidatingReader(
documentReader, new XmlTextReader(resourceStream));
reader.ReportDetails = true;
string lastGuy = "lift";
int line = 0;
int step = 0;
if (progress != null)
{
try
{
if (documentReader.BaseURI != null)
{
string sFilePath = documentReader.BaseURI.Replace("file://", "");
if (sFilePath.StartsWith("/"))
{
// On Microsoft Windows, the BaseURI may be "file:///C:/foo/bar.lift"
if (sFilePath.Length > 3 &&
Char.IsLetter(sFilePath[1]) && sFilePath[2] == ':' && sFilePath[3] == '/')
{
sFilePath = sFilePath.Substring(1);
}
}
System.IO.FileInfo fi = new System.IO.FileInfo(sFilePath);
// Unfortunately, XmlTextReader gives access to only line numbers,
// not actual file positions while reading. A check of 8 Flex
// generated LIFT files showed a range of 43.9 - 52.1 chars per
// line. The biatah sample distributed with WeSay has an average
// of only 23.1 chars per line. We'll compromise by guessing 33.
// The alternative is to read the entire file to get the actual
// line count.
int maxline = (int)(fi.Length / 33);
if (maxline < 8)
{
progress.MaxRange = 8;
}
else if (maxline < 100)
{
progress.MaxRange = maxline;
}
else
{
progress.MaxRange = 100;
}
step = (maxline + 99) / 100;
}
if (step <= 0)
{
step = 1;
}
}
catch
{
step = 100;
}
}
try
{
while (!reader.EOF)
{
// Debug.WriteLine(reader.v
reader.Read();
lastGuy = reader.Name;
if (progress != null && reader.LineNumber != line)
{
line = reader.LineNumber;
if (line % step == 0)
{
progress.Step(1);
}
}
}
}
catch (Exception e)
{
if (reader.Name == "version" && (lastGuy == "lift" || lastGuy == ""))
{
return(String.Format(
"This file claims to be version {0} of LIFT, but this version of the program uses version {1}",
reader.Value, LiftVersion));
}
string m = string.Format("{0}\r\nError near: {1} {2} '{3}'", e.Message, lastGuy, reader.Name, reader.Value);
return(m);
}
return(null);
}
}
///<summary>
/// Validate the LIFT file contained in the XmlTextReader. Progress reporting is
/// supported.
///</summary>
static private string GetSchemaValidationErrors(string path,IValidationProgress progress)
{
using (XmlTextReader documentReader = new XmlTextReader(path))
{
progress.Status = "Checking for Schema errors...";
var resourceStream = typeof (LiftMultiText).Assembly.GetManifestResourceStream("Palaso.Lift.Validation.lift.rng");
if (resourceStream == null)
throw new Exception();
RelaxngValidatingReader reader = new RelaxngValidatingReader(
documentReader, new XmlTextReader(resourceStream));
reader.ReportDetails = true;
string lastGuy = "lift";
int line = 0;
int step = 0;
if (progress != null)
{
try
{
if (documentReader.BaseURI != null)
{
string sFilePath = documentReader.BaseURI.Replace("file://", "");
if (sFilePath.StartsWith("/"))
{
// On Microsoft Windows, the BaseURI may be "file:///C:/foo/bar.lift"
if (sFilePath.Length > 3 &&
Char.IsLetter(sFilePath[1]) && sFilePath[2] == ':' && sFilePath[3] == '/')
{
sFilePath = sFilePath.Substring(1);
}
}
System.IO.FileInfo fi = new System.IO.FileInfo(sFilePath);
// Unfortunately, XmlTextReader gives access to only line numbers,
// not actual file positions while reading. A check of 8 Flex
// generated LIFT files showed a range of 43.9 - 52.1 chars per
// line. The biatah sample distributed with WeSay has an average
// of only 23.1 chars per line. We'll compromise by guessing 33.
// The alternative is to read the entire file to get the actual
// line count.
int maxline = (int) (fi.Length/33);
if (maxline < 8)
progress.MaxRange = 8;
else if (maxline < 100)
progress.MaxRange = maxline;
else
progress.MaxRange = 100;
step = (maxline + 99)/100;
}
if (step <= 0)
step = 1;
}
catch
{
step = 100;
}
}
try
{
while (!reader.EOF)
{
// Debug.WriteLine(reader.v
reader.Read();
lastGuy = reader.Name;
if (progress != null && reader.LineNumber != line)
{
line = reader.LineNumber;
if (line%step == 0)
progress.Step(1);
}
}
}
catch (Exception e)
{
if (reader.Name == "version" && (lastGuy == "lift" || lastGuy == ""))
{
return String.Format(
"This file claims to be version {0} of LIFT, but this version of the program uses version {1}",
reader.Value, LiftVersion);
}
string m = string.Format("{0}\r\nError near: {1} {2} '{3}'", e.Message, lastGuy, reader.Name, reader.Value);
return m;
}
return null;
}
}
