public static IEnumerable <IMergeError> ReplaceMergeFieldsAndReturnMissingFieldNames(
XmlDocument sharedStringsDoc, List <XmlDocument> sheetDocList, Dictionary <string, string> replacements, Engine engine)
{
var fields = GetSharedStrings(sharedStringsDoc);
var errors = new List <IMergeError>();
var properties = new Properties(replacements);
int stringIdx = 0;
foreach (var field in fields)
{
var value = field.Text;
var matches = regex.Match(field.Text);
if (matches.Success)
{
var fieldNames = matches.Groups["name"].Captures;
var fieldTemplates = matches.Groups["template"].Captures;
for (var fieldIdx = 0; fieldIdx < fieldNames.Count; ++fieldIdx)
{
var fieldName = fieldNames[fieldIdx].ToString();
var fieldTemlate = fieldTemplates[fieldIdx].ToString();
var exp = engine.Parse(fieldName);
if (exp == null)
{
errors.Add(new MergeError(v => v.InvalidExpression(fieldName)));
}
else
{
var missingProperties = new List <string>();
properties.FindMissingProperties(exp, missingProperties);
errors.AddRange(missingProperties.Select(p => new MergeError(v => v.MissingField(p))));
if (missingProperties.Count == 0) // otherwise Eval will throw
{
value = value.Replace(fieldTemlate, properties.Eval(exp));
}
}
}
if (value != field.Text)
{
double dresult;
if (Double.TryParse(value.Trim(), out dresult))
{
foreach (var sheetDoc in sheetDocList)
{
var cells = GetStringCells(sheetDoc, stringIdx);
foreach (var cell in cells)
{
cell.DoubleValue = dresult;
}
}
value = "";
}
}
field.StringValue = value;
}
++stringIdx;
}
return(errors);
}
