def _parse_args(self, prepared_args):
"""
Handles the special command-line arguments available for this screen.
Although this is a base screen, having these options prepared here
can save coding for screens that will not change the default options.
See `_usage_options_example` method for documentation on each of the
options being parsed here.
Additionally, this is dependent on the values exposed in `cli_opts`,
passed to this class during its instantiation. Only values properly
configured there will be accepted here.
"""
for o, a in prepared_args[0]: # optlist, args
if o in ("-h", "--help"):
self.usage()
self.screen_exit()
elif o in ("-r", "--raw"):
self.clean_html = False
elif o in ("-f", "--format"):
#remove escaping
self.print_format = common.unescape_string(a)
elif o in ("-u", "--url"):
try:
# try to fix the url formatting
self.url = self.fix_uri(a)
except Exception, e:
raise exception.InvalidOptionException("url", e.message)
else:
# this should never happen!
raise Exception(_("Unhandled option. See --help for details."))
def _parse_args(self, prepared_args):
"""
Handles the special command-line arguments available for this screen.
Although this is a base screen, having these options prepared here
can save coding for screens that will not change the default options.
See `_usage_options_example` method for documentation on each of the
options being parsed here.
Additionally, this is dependent on the values exposed in `cli_opts`,
passed to this class during its instantiation. Only values properly
configured there will be accepted here.
"""
for o, a in prepared_args[0]: # optlist, args
if o in ("-h", "--help"):
self.usage()
self.screen_exit()
elif o in ("-r", "--raw"):
self.clean_html = False
elif o in ("-f", "--format"):
# remove escaping
self.print_format = common.unescape_string(a)
elif o in ("-u", "--url"):
try:
# try to fix the url formatting
self.url = self.fix_uri(a)
except Exception, e:
raise exception.InvalidOptionException("url", e.message)
else:
# this should never happen!
raise Exception(_("Unhandled option. See --help for details."))
def _run_cycle(self):
"""
Executes a cycle of this screen.
The actions taken here, for each cycle, are as follows:
* retrieve data from `url`
* parses the data into a XML dom document object
* parses the document object into a list of dictionaries
* print using `typing_print`
"""
self.doc_xml_string(self.fetch(self.url))
self.parse_data()
self.clear_screen()
for item in self.data:
new_text = item
try:
new_text = common.unescape_string(self.print_format % new_text)
# remove HTML tags is applicable
if self.clean_html:
new_text = common.strip_html(new_text)
except:
raise exception.InvalidOptionException(
"format", _("There was an error while using your format."))
if self.center_vertically or self.center_horizontally:
self.get_terminal_size()
if self.center_vertically:
new_text = self.center_text_vertically(new_text)
if self.center_horizontally:
new_text = self.center_text_horizontally(new_text)
self.typing_print(new_text)
time.sleep(self.sleep_between_items)
if self.cleanup_per_item:
self.clear_screen()
def _run_cycle(self):
"""
Executes a cycle of this screen.
The actions taken here, for each cycle, are as follows:
* retrieve data from `url`
* parses the data into a XML dom document object
* parses the document object into a list of dictionaries
* print using `typing_print`
"""
self.doc_xml_string(self.fetch(self.url))
self.parse_data()
self.clear_screen()
for item in self.data:
new_text = item
try:
new_text = common.unescape_string(self.print_format % new_text)
# remove HTML tags is applicable
if self.clean_html:
new_text = common.strip_html(new_text)
except:
raise exception.InvalidOptionException("format", _("There was an error while using your format."))
if self.center_vertically or self.center_horizontally:
self.get_terminal_size()
if self.center_vertically:
new_text = self.center_text_vertically(new_text)
if self.center_horizontally:
new_text = self.center_text_horizontally(new_text)
self.typing_print(new_text)
time.sleep(self.sleep_between_items)
if self.cleanup_per_item:
self.clear_screen()