diff options
Diffstat (limited to 'yardstick/network_services/vnf_generic/vnf/iniparser.py')
| -rw-r--r-- | yardstick/network_services/vnf_generic/vnf/iniparser.py | 135 |
1 files changed, 67 insertions, 68 deletions
diff --git a/yardstick/network_services/vnf_generic/vnf/iniparser.py b/yardstick/network_services/vnf_generic/vnf/iniparser.py index 996441264..70e24de5b 100644 --- a/yardstick/network_services/vnf_generic/vnf/iniparser.py +++ b/yardstick/network_services/vnf_generic/vnf/iniparser.py @@ -14,22 +14,18 @@ class ParseError(Exception): - def __init__(self, message, line_no, line): + def __init__(self, message, lineno, line): self.msg = message self.line = line - self.line_no = line_no + self.lineno = lineno def __str__(self): - return 'at line %d, %s: %r' % (self.line_no, self.msg, self.line) + return 'at line %d, %s: %r' % (self.lineno, self.msg, self.line) class BaseParser(object): - - PARSE_EXC = ParseError - - def __init__(self): - super(BaseParser, self).__init__() - self.line_no = 0 + lineno = 0 + parse_exc = ParseError def _assignment(self, key, value): self.assignment(key, value) @@ -47,9 +43,9 @@ class BaseParser(object): colon = line.find(':') equal = line.find('=') if colon < 0 and equal < 0: - return self.error_invalid_assignment(line) + return line.strip(), '@' - if colon < 0 or (0 <= equal < colon): + if colon < 0 or (equal >= 0 and equal < colon): key, value = line[:equal], line[equal + 1:] else: key, value = line[:colon], line[colon + 1:] @@ -59,56 +55,44 @@ class BaseParser(object): value = value[1:-1] return key.strip(), [value] - def _single_line_parse(self, line, key, value): - self.line_no += 1 - - if line.startswith(('#', ';')): - self.comment(line[1:].strip()) - return key, value + def parse(self, lineiter): + key = None + value = [] - active, _, comment = line.partition(';') - self.comment(comment.strip()) + for line in lineiter: + self.lineno += 1 + + line = line.rstrip() + lines = line.split(';') + line = lines[0] + if not line: + # Blank line, ends multi-line values + if key: + key, value = self._assignment(key, value) + continue + elif line.startswith((' ', '\t')): + # Continuation of previous assignment + if key is None: + self.error_unexpected_continuation(line) + else: + value.append(line.lstrip()) + continue - if not active: - # Blank line, ends multi-line values if key: + # Flush previous assignment, if any key, value = self._assignment(key, value) - return key, value - - if active.startswith((' ', '\t')): - # Continuation of previous assignment - if key is None: - return self.error_unexpected_continuation(line) - value.append(active.lstrip()) - return key, value - - if key: - # Flush previous assignment, if any - key, value = self._assignment(key, value) - - if active.startswith('['): - # Section start - section = self._get_section(active) - if section: - self.new_section(section) - - else: - key, value = self._split_key_value(active) - if not key: - return self.error_empty_key(line) - - return key, value - - def parse(self, line_iter=None): - if line_iter is None: - return - - key = None - value = [] - - for line in line_iter: - key, value = self._single_line_parse(line, key, value) + if line.startswith('['): + # Section start + section = self._get_section(line) + if section: + self.new_section(section) + elif line.startswith(('#', ';')): + self.comment(line[1:].lstrip()) + else: + key, value = self._split_key_value(line) + if not key: + return self.error_empty_key(line) if key: # Flush previous assignment, if any @@ -126,23 +110,23 @@ class BaseParser(object): """Called when a comment is parsed.""" pass - def make_parser_error(self, template, line): - raise self.PARSE_EXC(template, self.line_no, line) - def error_invalid_assignment(self, line): - self.make_parser_error("No ':' or '=' found in assignment", line) + raise self.parse_exc("No ':' or '=' found in assignment", + self.lineno, line) def error_empty_key(self, line): - self.make_parser_error('Key cannot be empty', line) + raise self.parse_exc('Key cannot be empty', self.lineno, line) def error_unexpected_continuation(self, line): - self.make_parser_error('Unexpected continuation line', line) + raise self.parse_exc('Unexpected continuation line', + self.lineno, line) def error_no_section_end_bracket(self, line): - self.make_parser_error('Invalid section (must end with ])', line) + raise self.parse_exc('Invalid section (must end with ])', + self.lineno, line) def error_no_section_name(self, line): - self.make_parser_error('Empty section name', line) + raise self.parse_exc('Empty section name', self.lineno, line) class ConfigParser(BaseParser): @@ -158,20 +142,35 @@ class ConfigParser(BaseParser): self.sections = sections self.section = None - def parse(self, line_iter=None): + def parse(self): with open(self.filename) as f: return super(ConfigParser, self).parse(f) + def find_section(self, sections, section): + return next((i for i, sect in enumerate(sections) if sect == section), -1) + def new_section(self, section): self.section = section - self.sections.setdefault(self.section, []) + index = self.find_section(self.sections, section) + if index == -1: + self.sections.append([section, []]) def assignment(self, key, value): if not self.section: raise self.error_no_section() value = '\n'.join(value) - self.sections[self.section].append([key, value]) + + def append(sections, section): + entry = [key, value] + index = self.find_section(sections, section) + sections[index][1].append(entry) + + append(self.sections, self.section) + + def parse_exc(self, msg, lineno, line=None): + return ParseError(msg, lineno, line) def error_no_section(self): - self.make_parser_error('Section must be started before assignment', '') + return self.parse_exc('Section must be started before assignment', + self.lineno) |