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float-values: Fix bug on strings containing fordidden values

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The rule correctly reports number values like `.1`, `1e2`, `.NaN` and
`.Inf`, but it also reported false positives on strings like `.1two3`,
`1e2a`, `.NaNa` and `.Infinit∞`.

The regexps need to end with an end delimiter (`$`) otherwise longer
strings can be matched too.

Fixes https://github.com/adrienverge/yamllint/issues/495
This commit is contained in:
Adrien Vergé
2022-10-02 20:03:30 +02:00
parent e8391de711
commit 008db4aa09
2 changed files with 18 additions and 10 deletions
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8
yamllint/rules/float_values.py
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@@ -107,13 +107,13 @@ DEFAULT = {
}
IS_NUMERAL_BEFORE_DECIMAL_PATTERN = (
re.compile('[-+]?(\\.[0-9]+)([eE][-+]?[0-9]+)?')
re.compile('[-+]?(\\.[0-9]+)([eE][-+]?[0-9]+)?$')
)
IS_SCIENTIFIC_NOTATION_PATTERN = re.compile(
'[-+]?(\\.[0-9]+|[0-9]+(\\.[0-9]*)?)([eE][-+]?[0-9]+)'
'[-+]?(\\.[0-9]+|[0-9]+(\\.[0-9]*)?)([eE][-+]?[0-9]+)$'
)
IS_INF_PATTERN = re.compile('[-+]?(\\.inf|\\.Inf|\\.INF)')
IS_NAN_PATTERN = re.compile('\\.nan|\\.NaN|\\.NAN')
IS_INF_PATTERN = re.compile('[-+]?(\\.inf|\\.Inf|\\.INF)$')
IS_NAN_PATTERN = re.compile('(\\.nan|\\.NaN|\\.NAN)$')
def check(conf, token, prev, next, nextnext, context):