public void WriteBlock(int entryId, List <EntryVersion> vers)
{
sw.WriteLine();
sw.Write("# ID-");
sw.WriteLine(EntryId.IdToString(entryId));
for (int i = 0; i != vers.Count; ++i)
{
EntryVersion ver = vers[i];
sw.Write("# Ver ");
sw.Write(formatDate(ver.Timestamp));
sw.Write(' ');
sw.Write(ver.User);
sw.Write(" Stat-");
if (ver.Status == EntryStatus.Neutral)
{
sw.Write("New");
}
else if (ver.Status == EntryStatus.Approved)
{
sw.Write("Verif");
}
else if (ver.Status == EntryStatus.Flagged)
{
sw.Write("Flagged");
}
else
{
throw new Exception("Forgotten entry status: " + ver.Status);
}
sw.Write(' ');
if (ver.BulkRef > 0)
{
sw.Write(ver.BulkRef.ToString("000"));
}
sw.Write('>');
string cmtEsc = ver.Comment;
if (cmtEsc.Contains(@"\"))
{
cmtEsc = cmtEsc.Replace(@"\", @"\\");
}
if (cmtEsc.Contains("\n"))
{
cmtEsc = cmtEsc.Replace("\n", "\\n");
}
sw.WriteLine(cmtEsc);
if (ver.Entry != null)
{
string entryStr = CedictWriter.Write(ver.Entry);
if (i != vers.Count - 1)
{
sw.Write("# ");
}
sw.WriteLine(entryStr);
}
}
}
/// <summary>
/// Reads a block from stream with versioned entries.
/// </summary>
/// <param name="vers">Receives versions; oldest first.</param>
/// <returns>Entry ID if succeeded, -1 if input is over.</returns>
public int ReadBlock(List <EntryVersion> vers)
{
int id = -1;
EntryVersion currVersion = null;
string line;
while ((line = sr.ReadLine()) != null)
{
// Still looking for block stating ID
if (id == -1)
{
// Skip all lines that are *not* an ID
if (!line.StartsWith("# ID-"))
{
continue;
}
line = line.Substring(5);
id = EntryId.StringToId(line);
}
// We're inside block
else
{
// Not a comment: this is block's last line, with current entry
if (!line.StartsWith("#"))
{
currVersion.Entry = parser.ParseEntry(line, -1, null);
vers.Add(currVersion);
// Forward-propagate unchanged entries (null at this point)
for (int i = 1; i < vers.Count; ++i)
{
if (vers[i].Entry == null)
{
vers[i].Entry = vers[i - 1].Entry;
}
}
return(id);
}
// Commented lines are either version declarations, or past forms of entries following a version declaration
// Entries are omitted if they didn't change from previous version
if (line.StartsWith("# Ver"))
{
if (currVersion != null)
{
vers.Add(currVersion);
}
currVersion = parseVersion(line);
}
else
{
line = line.Substring(2);
currVersion.Entry = parser.ParseEntry(line, -1, null);
vers.Add(currVersion);
currVersion = null;
}
}
}
// Forward-propagate unchanged entries (null at this point)
for (int i = 1; i < vers.Count; ++i)
{
if (vers[i].Entry == null)
{
vers[i].Entry = vers[i - 1].Entry;
}
}
// Done.
return(id);
}
private void toVersions(List <HistRec> recs, out List <EntryVersion> history, out int entryId)
{
entryId = recs[0].EntryId;
history = new List <EntryVersion>();
// Sort records newest to oldest
recs.Sort((x, y) => y.ModifTimeUtc.CompareTo(x.ModifTimeUtc));
// Resolve HW, TRG and STATUS for each version
string[] verHw = new string[recs.Count];
string[] verTrg = new string[recs.Count];
EntryStatus[] verStatus = new EntryStatus[recs.Count];
for (int i = 0; i != recs.Count; ++i)
{
HistRec rec = recs[i];
// Newest: take entry, "propagate" all the way to oldest
if (i == 0)
{
for (int j = 0; j != recs.Count; ++j)
{
verHw[j] = rec.EntryHw;
verTrg[j] = rec.EntryTrg;
verStatus[j] = rec.EntryStatus;
}
}
// Change has "before" value: propagate to earlier versions
if (rec.ModifHwBefore != null)
{
for (int j = i + 1; j < verHw.Length; ++j)
{
verHw[j] = rec.ModifHwBefore;
}
}
if (rec.ModifTrgBefore != null)
{
for (int j = i + 1; j < verTrg.Length; ++j)
{
verTrg[j] = rec.ModifTrgBefore;
}
}
if (rec.ModifStatusBefore != 99)
{
for (int j = i + 1; j < verStatus.Length; ++j)
{
verStatus[j] = (EntryStatus)rec.ModifStatusBefore;
}
}
}
// Moving now from oldest to newest, build history
// First and last item are special: they always contain entry
// First coz we must "anchor" entry; last because it's always present in non-commented form
for (int i = recs.Count - 1; i >= 0; --i)
{
HistRec rec = recs[i];
CedictEntry entry = parser.ParseEntry(verHw[i] + " " + verTrg[i], -1, null);
EntryVersion ev = new EntryVersion
{
Timestamp = rec.ModifTimeUtc,
User = idToUserName[rec.ModifUserId],
Status = verStatus[i],
BulkRef = rec.ModifBulkRef,
Comment = rec.ModifNote,
Entry = null,
};
// First and last version always get entry
if (i == 0 || i == recs.Count - 1)
{
ev.Entry = entry;
}
// Also if HW or TRG changed from earlier (i + 1) version
else if (verHw[i] != verHw[i + 1] || verTrg[i] != verTrg[i + 1])
{
ev.Entry = entry;
}
// Append to history
history.Add(ev);
}
}
