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 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)
{
#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
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