Adds support for scratch buffer

chalk

@@ -27,8 +27,9 @@ content = []
 paste_buffer = []
 file_changed = False
 filepath = ''
-filename = ''
+filename = 'scratch buffer'
 view_loc = {'last': 0, 'count': 0}
+version = 2.1
 
 
 ###########################################################
@@ -106,7 +107,7 @@ def print_help():
         "",
         " {}.d{} - Display the whole file".format(c.b_green, c.end),
         " {}.v{} - View range of lines (will request location/count)".format(c.b_green, c.end),
-        " {}.m{} - View MORE (use after using !v to see more)".format(c.b_green, c.end),
+        " {}.m{} - View MORE (use after using .v to see more)".format(c.b_green, c.end),
         "",
         " {}.#{} - Edit a line (eg .27)".format(c.b_green, c.end),
         " {}.i{} - Insert empty line(s) (will request location/count)".format(c.b_green, c.end),
@@ -148,7 +149,9 @@ def print_file_info():
     user_can_write = os.access(filepath, os.W_OK)
     print('{}   Writing:{} {}{}'.format(c.yellow, c.white, filename, c.end))
     print('{}   Length :{} {} rows / {} chars{}'.format(c.yellow, c.white, len(content), get_character_count(), c.end))
-    if not user_can_write:
+    if not filepath:
+        print('{}   You are in the scratch buffer. Use \033[3m.a\033[23m to save your work as a file{}'.format(c.bold, c.end))
+    elif not user_can_write:
         print('{}   You do not have permission to write to {} >>{}'.format(c.bold, filename, c.end))
 
     if file_changed:
@@ -158,7 +161,7 @@ def print_file_info():
 
 # Print banner will print the program name,
 def print_banner():
-    print('\n   Chalk 2.0 by sloum\n')
+    print('\n   Chalk {} by sloum\n'.format(version))
     print_file_info()
     print("   For a command list, enter {}.?\n{}".format(c.green, c.end))
 
@@ -174,9 +177,15 @@ def get_character_count():
 # file path, the file name, and loads in any
 # content contained in a file
 def build_contents_from_file(path):
+    # No path was given, just create an empty
+    # content buffer and it can be saved later
+    if not path:
+        return
+
     global content
     global filepath
     global filename
+
     path = os.path.abspath(path)
     filepath = os.path.expanduser(path)
     filename = filepath.split('/')[-1]
@@ -213,7 +222,6 @@ def yes_no(question):
 # Chalk is the entry point into the editor, contains the
 # input loop and does some routing
 def chalk(path):
-    global filename
     global file_changed
 
     build_contents_from_file(path)
@@ -328,6 +336,7 @@ def save_as():
     continue_save_as = yes_no('{:9}{}Are you sure you want to save as {}? (y/n){} '.format(' ', c.cyan, path, c.end))
     if not continue_save_as:
         print('{:9}Save canceled.'.format(' '))
+        return False
 
     path = os.path.abspath(path)
     fp = os.path.expanduser(path)
@@ -335,11 +344,12 @@ def save_as():
     valid = check_file_writable(fp)
     if not valid:
         print('{:9}{}The path is invalid, save cancelled{}'.format(' ', c.red, c.end))
+        return False
 
     filepath = fp
     filename = fn
     file_changed = True
-    save_changes()
+    return save_changes()
 
 
 # Quit will quit the program, but first will ask to save if there
@@ -349,7 +359,7 @@ def quit():
         sys.exit(0)
     save = yes_no('         {}Save changes to {}?{} (Y/n) '.format(c.b_green, filename, c.end))
     if save:
-        saved = save_changes()
+        saved = save_changes() if filepath else save_as()
         if saved:
             print('         File "{}" has been saved.'.format(filename))
             sys.exit(0)
@@ -552,11 +562,12 @@ def view_paste_buffer():
 
 if __name__ == '__main__':
     args = sys.argv
-    if len(args) != 2:
+    if len(args) > 2:
         print('Incorrect number of arguments:')
-        print('chalk [file path]')
+        print('chalk [\033[3mfile path\033[0m]')
         sys.exit(1)
-    filepath = args[1]
+    elif len(args) == 2:
+        filepath = args[1]
 
     # Set readline settings
     readline.parse_and_bind('set editing-mode emacs')

newtest.txt

@@ -0,0 +1 @@
+This is a test