jianhu

tell application "Xcode"
	if (frontmost of it = false) then
		return
	end if
	
	set documentList to source document of it
	set listLength to count of documentList
	if listLength is less than 1 then
		return --no opened source file in working space
	end if

jianhu

# Uncrustify 0.58
newlines                                 = auto
input_tab_size                           = 4
output_tab_size                          = 4
string_escape_char                       = 92
string_escape_char2                      = 0
tok_split_gte                            = false
indent_columns                           = 4
indent_continue                          = 0
indent_with_tabs                         = 0

jianhu

db := openDB()
  defer closeDB(db)
	stmt, err := db.Prepare("INSERT INTO book(title,author,content,createdtime) VALUES($1,$2,$3,$4)")
	if err != nil {
		return err
	}
	_, err = stmt.Exec(b.Title, b.Author, b.Content, b.CreatedTime)
	if err != nil {
		return err
	}

jianhu

UPDATE table SET field='C', field2='Z' WHERE id=3;
INSERT INTO table (id, field, field2)
       SELECT 3, 'C', 'Z'
       WHERE NOT EXISTS (SELECT 1 FROM table WHERE id=3);

jianhu

find ~/Library/Application\ Support/Developer/Shared/Xcode/Plug-ins -name Info.plist -maxdepth 3 | xargs -I{} defaults write {} DVTPlugInCompatibilityUUIDs -array-add `defaults read /Applications/Xcode.app/Contents/Info.plist DVTPlugInCompatibilityUUID`

jianhu

How Do I Declare A Block in Objective-C?

As a local variable:

returnType (^blockName)(parameterTypes) = ^returnType(parameters) {...};
As a property:

@property (nonatomic, copy) returnType (^blockName)(parameterTypes);
As a method parameter: