public static GrammarItemList SelectGrammars(string assemblyPath, GrammarItemList loadedGrammars) {
var fromGrammars = LoadGrammars(assemblyPath);
if (fromGrammars == null)
return null;
//fill the listbox and show the form
fmSelectGrammars form = new fmSelectGrammars();
var listbox = form.lstGrammars;
listbox.Sorted = false;
foreach(GrammarItem item in fromGrammars) {
listbox.Items.Add(item);
if (!ContainsGrammar(loadedGrammars, item))
listbox.SetItemChecked(listbox.Items.Count - 1, true);
}
listbox.Sorted = true;
if (form.ShowDialog() != DialogResult.OK) return null;
GrammarItemList result = new GrammarItemList();
for (int i = 0; i < listbox.Items.Count; i++) {
if (listbox.GetItemChecked(i)) {
var item = listbox.Items[i] as GrammarItem;
item._loading = false;
result.Add(item);
}
}
return result;
}
private static bool ContainsGrammar(GrammarItemList items, GrammarItem item)
{
foreach (var listItem in items)
if (listItem.TypeName == item.TypeName && listItem.Location == item.Location)
return true;
return false;
}
private static GrammarItemList LoadGrammars(string assemblyPath) {
Assembly asm = null;
try {
asm = Assembly.LoadFrom(assemblyPath);
} catch (Exception ex) {
MessageBox.Show("Failed to load assembly: " + ex.Message);
return null;
}
var types = asm.GetTypes();
var grammars = new GrammarItemList();
foreach (Type t in types) {
if (!t.IsSubclassOf(typeof(Grammar))) continue;
grammars.Add(new GrammarItem(t, assemblyPath));
}
if (grammars.Count == 0) {
MessageBox.Show("No classes derived from Irony.Grammar were found in the assembly.");
return null;
}
return grammars;
}
private void miAdd_Click(object sender, EventArgs e) {
if (dlgSelectAssembly.ShowDialog() != DialogResult.OK) return;
string location = dlgSelectAssembly.FileName;
if (string.IsNullOrEmpty(location)) return;
var oldGrammars = new GrammarItemList();
foreach(var item in cboGrammars.Items)
oldGrammars.Add((GrammarItem) item);
var grammars = fmSelectGrammars.SelectGrammars(location, oldGrammars);
if (grammars == null) return;
foreach (GrammarItem item in grammars)
cboGrammars.Items.Add(item);
btnRefresh.Enabled = false;
// auto-select the first grammar if no grammar currently selected
if (cboGrammars.SelectedIndex < 0 && grammars.Count > 0)
cboGrammars.SelectedIndex = 0;
}
private void miAdd_Click(object sender, EventArgs e)
{
if (dlgSelectAssembly.ShowDialog() != DialogResult.OK) return;
string location = dlgSelectAssembly.FileName;
if (string.IsNullOrEmpty(location)) return;
var oldGrammars = new GrammarItemList();
foreach(var item in cboGrammars.Items)
oldGrammars.Add((GrammarItem) item);
var grammars = fmSelectGrammars.SelectGrammars(location, oldGrammars);
if (grammars == null) return;
foreach (GrammarItem item in grammars)
cboGrammars.Items.Add(item);
}
private static bool ContainsGrammar(GrammarItemList items, GrammarItem item)
{
return items.Any(listItem => listItem.TypeName == item.TypeName && listItem.Location == item.Location);
}
