public IEnumerable <ISBSFormField> GetFieldsInExpression(string src, string templateKeyword, ISBSForm form)
{
foreach (string fieldName in this.GetFieldNamesInExpression(src, templateKeyword))
{
yield return(form.FindField(fieldName)); // yields null if the fieldname is not in the form
}
}
public string PerformSubstitutions(string src, ISBSFormField field, ISBSForm form, bool quotedStringValues = false)
{
// Don't disturb the original string.
string sNew = (new StringBuilder(src)).ToString();
// Process the {value} string
if (field != null)
{
sNew = this.ReplaceStringWithValue(sNew, "${value}", field.Value, quotedStringValues);
}
// Process the {field:name} string
if (form != null)
{
sNew = this.SubstituteTerm(sNew, "field", form, fieldName => form.FindField(fieldName)?.Value, quotedStringValues);
}
sNew = this.SubstituteTerm(sNew, "config", form, this.FindConfigurationValue, quotedStringValues);
return(sNew);
}