def test_is_valid_r_variable(self):
"""
Test for strings to check if they are valid R variables.
"""
self.assertFalse(RUtils.is_valid_r_variable("var_name%"))
self.assertFalse(RUtils.is_valid_r_variable("2var_name"))
self.assertFalse(RUtils.is_valid_r_variable(".2var_name"))
self.assertFalse(RUtils.is_valid_r_variable("_var_name"))
self.assertTrue(RUtils.is_valid_r_variable("var_name2."))
self.assertTrue(RUtils.is_valid_r_variable(".var_name"))
self.assertTrue(RUtils.is_valid_r_variable("var.name"))
def process_parameter_line(self, line):
"""
Processes a single script line representing a parameter
"""
value, _ = self.split_tokens(line)
description = RUtils.create_descriptive_name(value)
if not RUtils.is_valid_r_variable(value):
self.error = self.tr(
'This script has a syntax error in variable name.\n'
'"{1}" is not a valid variable name in R.'
'Problem with line: {0}').format(line, value)
output = create_output_from_string(line)
if output is not None:
output.setName(value)
output.setDescription(description)
if issubclass(output.__class__, QgsProcessingOutputDefinition):
self.addOutput(output)
self.save_output_values = True
else:
# destination type parameter
self.addParameter(output)
else:
line = RUtils.upgrade_parameter_line(line)
# this is necessary to remove the otherwise unknown keyword
line = line.replace("enum literal", "enum")
# this is annoying, but required to work around a bug in early 3.8.0 versions
try:
param = getParameterFromString(line, context="")
except TypeError:
param = getParameterFromString(line)
# set help parameter
if Qgis.QGIS_VERSION_INT >= 31600:
if self.descriptions is not None:
param.setHelp(self.descriptions.get(param.name()))
if param is not None:
self.addParameter(param)
else:
self.error = self.tr('This script has a syntax error.\n'
'Problem with line: {0}').format(line)
def process_parameter_line(self, line):
"""
Processes a single script line representing a parameter
"""
value, _ = self.split_tokens(line)
description = RUtils.create_descriptive_name(value)
if not RUtils.is_valid_r_variable(value):
self.add_error_message(
self.tr('This script has a syntax error in variable name.\n'
'"{1}" is not a valid variable name in R.'
'Problem with line: {0}').format(line, value))
output = create_output_from_string(line)
if output is not None:
output.setName(value)
output.setDescription(description)
if issubclass(output.__class__, QgsProcessingOutputDefinition):
self.addOutput(output)
self.save_output_values = True
else:
# destination type parameter
self.addParameter(output)
else:
param = create_parameter_from_string(line)
if param is not None:
# set help parameter
if Qgis.QGIS_VERSION_INT >= 31600:
if self.descriptions is not None:
param.setHelp(self.descriptions.get(param.name()))
self.addParameter(param)
else:
self.add_error_message(
self.tr('This script has a syntax error.\n'
'Problem with line: {0}').format(line))
