} // end GenerateView()
protected override void ApplyViewToInputObject()
{
string val = RenderScriptValue(InputObject, m_view.Script, false);
// TODO: What to do if it spans more than a line? Just truncate? Issue a
// warning? Add "..."? Also, consider that the view definition might have been
// generated.
if (null == val)
{
WriteObject(String.Empty);
}
else
{
//int idx = val.IndexOf( '\n' );
// TODO: Now we pass 'false' for dontGroupMultipleResults, so I think this
// won't ever get hit unless we are formatting a string that contains a
// newline. Perhaps in that case we should escape it.
int idx = CaStringUtil.ApparentIndexOf(val, '\n');
if (idx < 0)
{
WriteObject(val);
}
else
{
WriteObject(CaStringUtil.Truncate(val, idx, false));
}
}
} // end ApplyViewToInputObject()
internal static string FormatSingleLineDirect(PSObject obj,
ScriptBlock script,
PsContext ctx)
{
string val;
using (FormatAltSingleLineCommand cmd = new FormatAltSingleLineCommand())
{
val = cmd.RenderScriptValue(obj, script, false, ctx);
}
// TODO: What to do if it spans more than a line? Just truncate? Issue a
// warning? Add "..."? Also, consider that the view definition might have been
// generated.
if (null == val)
{
return(String.Empty);
}
else
{
int idx = CaStringUtil.ApparentIndexOf(val, '\n');
if (idx < 0)
{
return(val);
}
else
{
return(CaStringUtil.Truncate(val, idx));
}
}
} // end FormatSingleLineDirect
} // end Truncate()
/// <summary>
/// Creates a new ColorString object if truncation is necessary.
/// </summary>
public static ColorString Truncate(ColorString cs, int maxApparentWidth, bool useEllipsis)
{
if (cs.Length <= maxApparentWidth)
{
return(cs);
}
// Would it be better to go through all the elements?
return(CaStringUtil.Truncate(cs.ToString(true), maxApparentWidth, useEllipsis));
} // end Truncate()
internal static string FormatSingleLineDirect(PSObject obj,
ScriptBlock script)
{
#if DEBUG
sm_renderScriptCallDepth++;
if (sm_renderScriptCallDepth > 10)
{
// Helps to catch runaway rendering /before/ gobbling tons of memory
System.Diagnostics.Debugger.Break();
// Maybe I should just throw?
}
#endif
var ctxVars = new List <PSVariable> {
new PSVariable("_", obj), new PSVariable("PSItem", obj)
};
var results = script.InvokeWithContext(null, ctxVars);
#if DEBUG
sm_renderScriptCallDepth--;
#endif
string val = null;
if (results?.Count > 0)
{
val = ObjectsToMarkedUpString(results,
"{0}", // <-- IMPORTANT: this prevents infinite recursion via Format-AltSingleLine
null,
false, 4).ToString();
}
// TODO: What to do if it spans more than a line? Just truncate? Issue a
// warning? Add "..."? Also, consider that the view definition might have been
// generated.
if (null == val)
{
return(String.Empty);
}
else
{
int idx = CaStringUtil.ApparentIndexOf(val, '\n');
if (idx < 0)
{
return(val);
}
else
{
return(CaStringUtil.Truncate(val, idx));
}
}
} // end FormatSingleLineDirect
protected static string PadAndAlign(string s,
int width,
ColumnAlignment alignment,
TrimLocation trimLocation)
{
Util.Assert(ColumnAlignment.Default != alignment);
int len = CaStringUtil.Length(s);
int pad = width - len;
if (0 == pad)
{
return(s);
}
if (pad < 0)
{
// Oh dear... too big to fit.
return(CaStringUtil.Truncate(s, width, true, trimLocation));
}
switch (alignment)
{
case ColumnAlignment.Left:
return(s + new String(' ', pad));
case ColumnAlignment.Center:
int leftpad = pad / 2;
int rightpad = pad - leftpad;
return(new String(' ', leftpad) + s + new String(' ', rightpad));
case ColumnAlignment.Right:
return(new String(' ', pad) + s);
default:
throw new ArgumentException(Util.Sprintf("Invalid ColumnAlignment value: {0}",
alignment),
"alignment");
}
} // end PadAndAlign()
private static ColorString _SummarizeModuleList(bool loadedMods, List <object> modObjList, int maxWidth)
{
ColorString cs = new ColorString();
if (0 == modObjList.Count)
{
cs.AppendPushPopFg(ConsoleColor.DarkGray, "(0 modules)");
}
else
{
cs.Append(Util.Sprintf("{0} modules: ", modObjList.Count));
for (int i = 0; i < Math.Min(modObjList.Count, 3); i++)
{
if (i > 0)
{
cs.Append(", ");
}
DbgModuleInfo dmi = (DbgModuleInfo)modObjList[i];
if (loadedMods)
{
cs.Append(DbgProvider.ColorizeModuleName(dmi.Name));
}
else
{
cs.Append(dmi.ImageName);
}
}
if (modObjList.Count > 3)
{
cs.Append(", ...");
}
}
return(CaStringUtil.Truncate(cs.ToString(DbgProvider.HostSupportsColor), maxWidth));
} // end _SummarizeModuleList()
internal static string FormatSingleLineDirect(PSObject obj,
ScriptBlock script,
bool allowMultipleLines)
{
#if DEBUG
sm_renderScriptCallDepth++;
if (sm_renderScriptCallDepth > 10)
{
// Helps to catch runaway rendering /before/ gobbling tons of memory
System.Diagnostics.Debugger.Break();
// Maybe I should just throw?
}
#endif
var ctxVars = new List <PSVariable> {
new PSVariable("_", obj), new PSVariable("PSItem", obj)
};
var results = script.InvokeWithContext(null, ctxVars);
#if DEBUG
sm_renderScriptCallDepth--;
#endif
string val = null;
if (results?.Count > 0)
{
val = ObjectsToMarkedUpString(results,
"{0}", // <-- IMPORTANT: this prevents infinite recursion via Format-AltSingleLine
null,
false, 4).ToString();
}
// TODO: What to do if it spans more than a line? Just truncate? Issue a
// warning? Add "..."? Also, consider that the view definition might have been
// generated.
if (null == val)
{
return(String.Empty);
}
// Q. Why might an alleged single-line view generate multiple lines?
//
// A. Could be buggy. Could be a generated view, and somebody's ToString()
// generates multiple lines. In short: it's not necessarily "weird", or
// unusual.
//
// Q. Why would we want to allow multiple lines? Doesn't the name of this
// class / method say "format SINGLE LINE"?
//
// A. Sometimes multi-line views can not only be accommodated, they are
// desirable, such as for compatibility with the built-in Format-List
// command.
if (allowMultipleLines)
{
return(val);
}
int idx = CaStringUtil.ApparentIndexOf(val, '\n');
if (idx < 0)
{
return(val);
}
return(CaStringUtil.Truncate(val, idx));
} // end FormatSingleLineDirect