PNG  IHDR pHYs   OiCCPPhotoshop ICC profilexڝSgTS=BKKoR RB&*! J!QEEȠQ, !{kּ> H3Q5 B.@ $pd!s#~<<+"x M0B\t8K@zB@F&S`cbP-`'{[! eDh;VEX0fK9-0IWfH  0Q){`##xFW<+*x<$9E[-qWW.(I+6aa@.y24x6_-"bbϫp@t~,/;m%h^ uf@Wp~<5j>{-]cK'Xto(hw?G%fIq^D$.Tʳ?D*A, `6B$BB dr`)B(Ͱ*`/@4Qhp.U=pa( Aa!ڈbX#!H$ ɈQ"K5H1RT UH=r9\F;2G1Q= C7F dt1r=6Ыhڏ>C03l0.B8, c˱" VcϱwE 6wB aAHXLXNH $4 7 Q'"K&b21XH,#/{C7$C2'ITFnR#,4H#dk9, +ȅ3![ b@qS(RjJ4e2AURݨT5ZBRQ4u9̓IKhhitݕNWGw Ljg(gwLӋT071oUX**| J&*/Tު UUT^S}FU3S ԖUPSSg;goT?~YYLOCQ_ cx,!k u5&|v*=9C3J3WRf?qtN (~))4L1e\kXHQG6EYAJ'\'GgSSݧ M=:.kDwn^Loy}/TmG X $ <5qo</QC]@Caaᄑ.ȽJtq]zۯ6iܟ4)Y3sCQ? 0k߬~OCOg#/c/Wװwa>>r><72Y_7ȷOo_C#dz%gA[z|!?:eAAA!h쐭!ΑiP~aa~ 'W?pX15wCsDDDޛg1O9-J5*>.j<74?.fYXXIlK9.*6nl {/]py.,:@LN8A*%w% yg"/6шC\*NH*Mz쑼5y$3,幄'L Lݛ:v m2=:1qB!Mggfvˬen/kY- BTZ(*geWf͉9+̳ې7ᒶKW-X潬j9(xoʿܔĹdff-[n ڴ VE/(ۻCɾUUMfeI?m]Nmq#׹=TR+Gw- 6 U#pDy  :v{vg/jBFS[b[O>zG499?rCd&ˮ/~јѡ򗓿m|x31^VwwO| (hSЧc3- cHRMz%u0`:o_F@8N ' p @8N@8}' p '#@8N@8N pQ9p!i~}|6-ӪG` VP.@*j>[ K^<֐Z]@8N'KQ<Q(`s" 'hgpKB`R@Dqj '  'P$a ( `D$Na L?u80e J,K˷NI'0eݷ(NI'؀ 2ipIIKp`:O'`ʤxB8Ѥx Ѥx $ $P6 :vRNb 'p,>NB 'P]-->P T+*^h& p '‰a ‰ (ĵt#u33;Nt̵'ޯ; [3W ~]0KH1q@8]O2]3*̧7# *p>us p _6]/}-4|t'|Smx= DoʾM×M_8!)6lq':l7!|4} '\ne t!=hnLn (~Dn\+‰_4k)0e@OhZ`F `.m1} 'vp{F`ON7Srx 'D˸nV`><;yMx!IS钦OM)Ե٥x 'DSD6bS8!" ODz#R >S8!7ّxEh0m$MIPHi$IvS8IN$I p$O8I,sk&I)$IN$Hi$I^Ah.p$MIN$IR8I·N "IF9Ah0m$MIN$IR8IN$I 3jIU;kO$ɳN$+ q.x* tEXtComment

Viewing File: /lib64/python3.9/site-packages/yaml/resolver.py

__all__ = ['BaseResolver', 'Resolver']

from .error import *
from .nodes import *

import re

class ResolverError(YAMLError):
    pass

class BaseResolver:

    DEFAULT_SCALAR_TAG = 'tag:yaml.org,2002:str'
    DEFAULT_SEQUENCE_TAG = 'tag:yaml.org,2002:seq'
    DEFAULT_MAPPING_TAG = 'tag:yaml.org,2002:map'

    yaml_implicit_resolvers = {}
    yaml_path_resolvers = {}

    def __init__(self):
        self.resolver_exact_paths = []
        self.resolver_prefix_paths = []

    @classmethod
    def add_implicit_resolver(cls, tag, regexp, first):
        if not 'yaml_implicit_resolvers' in cls.__dict__:
            implicit_resolvers = {}
            for key in cls.yaml_implicit_resolvers:
                implicit_resolvers[key] = cls.yaml_implicit_resolvers[key][:]
            cls.yaml_implicit_resolvers = implicit_resolvers
        if first is None:
            first = [None]
        for ch in first:
            cls.yaml_implicit_resolvers.setdefault(ch, []).append((tag, regexp))

    @classmethod
    def add_path_resolver(cls, tag, path, kind=None):
        # Note: `add_path_resolver` is experimental.  The API could be changed.
        # `new_path` is a pattern that is matched against the path from the
        # root to the node that is being considered.  `node_path` elements are
        # tuples `(node_check, index_check)`.  `node_check` is a node class:
        # `ScalarNode`, `SequenceNode`, `MappingNode` or `None`.  `None`
        # matches any kind of a node.  `index_check` could be `None`, a boolean
        # value, a string value, or a number.  `None` and `False` match against
        # any _value_ of sequence and mapping nodes.  `True` matches against
        # any _key_ of a mapping node.  A string `index_check` matches against
        # a mapping value that corresponds to a scalar key which content is
        # equal to the `index_check` value.  An integer `index_check` matches
        # against a sequence value with the index equal to `index_check`.
        if not 'yaml_path_resolvers' in cls.__dict__:
            cls.yaml_path_resolvers = cls.yaml_path_resolvers.copy()
        new_path = []
        for element in path:
            if isinstance(element, (list, tuple)):
                if len(element) == 2:
                    node_check, index_check = element
                elif len(element) == 1:
                    node_check = element[0]
                    index_check = True
                else:
                    raise ResolverError("Invalid path element: %s" % element)
            else:
                node_check = None
                index_check = element
            if node_check is str:
                node_check = ScalarNode
            elif node_check is list:
                node_check = SequenceNode
            elif node_check is dict:
                node_check = MappingNode
            elif node_check not in [ScalarNode, SequenceNode, MappingNode]  \
                    and not isinstance(node_check, str) \
                    and node_check is not None:
                raise ResolverError("Invalid node checker: %s" % node_check)
            if not isinstance(index_check, (str, int))  \
                    and index_check is not None:
                raise ResolverError("Invalid index checker: %s" % index_check)
            new_path.append((node_check, index_check))
        if kind is str:
            kind = ScalarNode
        elif kind is list:
            kind = SequenceNode
        elif kind is dict:
            kind = MappingNode
        elif kind not in [ScalarNode, SequenceNode, MappingNode]    \
                and kind is not None:
            raise ResolverError("Invalid node kind: %s" % kind)
        cls.yaml_path_resolvers[tuple(new_path), kind] = tag

    def descend_resolver(self, current_node, current_index):
        if not self.yaml_path_resolvers:
            return
        exact_paths = {}
        prefix_paths = []
        if current_node:
            depth = len(self.resolver_prefix_paths)
            for path, kind in self.resolver_prefix_paths[-1]:
                if self.check_resolver_prefix(depth, path, kind,
                        current_node, current_index):
                    if len(path) > depth:
                        prefix_paths.append((path, kind))
                    else:
                        exact_paths[kind] = self.yaml_path_resolvers[path, kind]
        else:
            for path, kind in self.yaml_path_resolvers:
                if not path:
                    exact_paths[kind] = self.yaml_path_resolvers[path, kind]
                else:
                    prefix_paths.append((path, kind))
        self.resolver_exact_paths.append(exact_paths)
        self.resolver_prefix_paths.append(prefix_paths)

    def ascend_resolver(self):
        if not self.yaml_path_resolvers:
            return
        self.resolver_exact_paths.pop()
        self.resolver_prefix_paths.pop()

    def check_resolver_prefix(self, depth, path, kind,
            current_node, current_index):
        node_check, index_check = path[depth-1]
        if isinstance(node_check, str):
            if current_node.tag != node_check:
                return
        elif node_check is not None:
            if not isinstance(current_node, node_check):
                return
        if index_check is True and current_index is not None:
            return
        if (index_check is False or index_check is None)    \
                and current_index is None:
            return
        if isinstance(index_check, str):
            if not (isinstance(current_index, ScalarNode)
                    and index_check == current_index.value):
                return
        elif isinstance(index_check, int) and not isinstance(index_check, bool):
            if index_check != current_index:
                return
        return True

    def resolve(self, kind, value, implicit):
        if kind is ScalarNode and implicit[0]:
            if value == '':
                resolvers = self.yaml_implicit_resolvers.get('', [])
            else:
                resolvers = self.yaml_implicit_resolvers.get(value[0], [])
            wildcard_resolvers = self.yaml_implicit_resolvers.get(None, [])
            for tag, regexp in resolvers + wildcard_resolvers:
                if regexp.match(value):
                    return tag
            implicit = implicit[1]
        if self.yaml_path_resolvers:
            exact_paths = self.resolver_exact_paths[-1]
            if kind in exact_paths:
                return exact_paths[kind]
            if None in exact_paths:
                return exact_paths[None]
        if kind is ScalarNode:
            return self.DEFAULT_SCALAR_TAG
        elif kind is SequenceNode:
            return self.DEFAULT_SEQUENCE_TAG
        elif kind is MappingNode:
            return self.DEFAULT_MAPPING_TAG

class Resolver(BaseResolver):
    pass

Resolver.add_implicit_resolver(
        'tag:yaml.org,2002:bool',
        re.compile(r'''^(?:yes|Yes|YES|no|No|NO
                    |true|True|TRUE|false|False|FALSE
                    |on|On|ON|off|Off|OFF)$''', re.X),
        list('yYnNtTfFoO'))

Resolver.add_implicit_resolver(
        'tag:yaml.org,2002:float',
        re.compile(r'''^(?:[-+]?(?:[0-9][0-9_]*)\.[0-9_]*(?:[eE][-+][0-9]+)?
                    |\.[0-9_]+(?:[eE][-+][0-9]+)?
                    |[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\.[0-9_]*
                    |[-+]?\.(?:inf|Inf|INF)
                    |\.(?:nan|NaN|NAN))$''', re.X),
        list('-+0123456789.'))

Resolver.add_implicit_resolver(
        'tag:yaml.org,2002:int',
        re.compile(r'''^(?:[-+]?0b[0-1_]+
                    |[-+]?0[0-7_]+
                    |[-+]?(?:0|[1-9][0-9_]*)
                    |[-+]?0x[0-9a-fA-F_]+
                    |[-+]?[1-9][0-9_]*(?::[0-5]?[0-9])+)$''', re.X),
        list('-+0123456789'))

Resolver.add_implicit_resolver(
        'tag:yaml.org,2002:merge',
        re.compile(r'^(?:<<)$'),
        ['<'])

Resolver.add_implicit_resolver(
        'tag:yaml.org,2002:null',
        re.compile(r'''^(?: ~
                    |null|Null|NULL
                    | )$''', re.X),
        ['~', 'n', 'N', ''])

Resolver.add_implicit_resolver(
        'tag:yaml.org,2002:timestamp',
        re.compile(r'''^(?:[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]
                    |[0-9][0-9][0-9][0-9] -[0-9][0-9]? -[0-9][0-9]?
                     (?:[Tt]|[ \t]+)[0-9][0-9]?
                     :[0-9][0-9] :[0-9][0-9] (?:\.[0-9]*)?
                     (?:[ \t]*(?:Z|[-+][0-9][0-9]?(?::[0-9][0-9])?))?)$''', re.X),
        list('0123456789'))

Resolver.add_implicit_resolver(
        'tag:yaml.org,2002:value',
        re.compile(r'^(?:=)$'),
        ['='])

# The following resolver is only for documentation purposes. It cannot work
# because plain scalars cannot start with '!', '&', or '*'.
Resolver.add_implicit_resolver(
        'tag:yaml.org,2002:yaml',
        re.compile(r'^(?:!|&|\*)$'),
        list('!&*'))

Back to Directory=ceiIENDB`