EDataServer.Collator¶
Fields¶
None
Methods¶
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Details¶
- class EDataServer.Collator¶
An opaque object used for locale specific string comparisons and sort ordering.
New in version 3.12.
- classmethod new(locale)¶
- Parameters:
locale (
str
) – The locale under which to sort- Raises:
- Returns:
A newly created
EDataServer.Collator
.- Return type:
Creates a new
EDataServer.Collator
for the given locale, the returned collator should be freed withEDataServer.Collator.unref
().New in version 3.12.
- classmethod new_interpret_country(locale)¶
- Parameters:
locale (
str
) – The locale under which to sort- Raises:
- Returns:
A newly created
EDataServer.Collator
.- country_code:
A location to store the interpreted country code from locale
- Return type:
(
EDataServer.Collator
, country_code:str
)
Creates a new
EDataServer.Collator
for the given locale, the returned collator should be freed withEDataServer.Collator.unref
().In addition, this also reliably interprets the country code from the locale string and stores it to country_code.
New in version 3.12.
- collate(str_a, str_b)¶
- Parameters:
- Raises:
- Returns:
True
on success, otherwise ifFalse
is returned then error will be set.- result:
A location to store the comparison result
- Return type:
Compares str_a with str_b, the order of strings is determined by the parameters of self.
The result will be set to integer less than, equal to, or greater than zero if str_a is found, respectively, to be less than, to match, or be greater than str_b.
Either str_a or str_b can be
None
,None
strings are considered to sort below other strings.This function will first ensure that both strings are valid UTF-8.
New in version 3.12.
- generate_key(str)¶
- Parameters:
str (
str
) – The string to generate a collation key for- Raises:
- Returns:
A collation key for str, or
None
on failure with error set.- Return type:
Generates a collation key for str, the result of comparing two collation keys with strcmp() will be the same result of calling
EDataServer.Collator.collate
() on the same original strings.This function will first ensure that str is valid UTF-8 encoded.
New in version 3.12.
- generate_key_for_index(index)¶
- Parameters:
index (
int
) – An index into the alphabetic labels- Returns:
A sort key for the given index
- Return type:
Generates a sort key for the given alphabetic index.
The generated sort key is guaranteed to sort below any sort keys for words beginning with any variant of the given letter.
For instance, a sort key generated for the index 5 of a latin alphabet, where the fifth index is ‘E’ will sort below any sort keys generated for words starting with the characters ‘e’, ‘E’, ‘é’, ‘É’, ‘è’ or ‘È’. It will also sort above any sort keys generated for words starting with the characters ‘d’ or ‘D’.
New in version 3.12.
- get_index(str)¶
- Parameters:
str (
str
) – A string- Returns:
The alphabetic index under which str would sort
- Return type:
Checks which index, as determined by
EDataServer.Collator.get_index_labels
(), that str should sort under.New in version 3.12.
- get_index_labels()¶
- Returns:
The array of displayable labels for each index in the active alphabet(s).
- n_labels:
The number of labels/indexes available for self
- underflow:
The underflow index, for any words which sort below the active alphabet(s)
- inflow:
The inflow index, for any words which sort between the active alphabets (if there is more than one)
- overflow:
The overflow index, for any words which sort above the active alphabet(s)
- Return type:
([
str
], n_labels:int
, underflow:int
, inflow:int
, overflow:int
)
Fetches the displayable labels and index positions for the active alphabet.
New in version 3.12.
- ref()¶
- Returns:
self
- Return type:
Increases the reference count of self.
New in version 3.12.
- unref()¶
Decreases the reference count of self. If the reference count reaches 0 then the collator is freed
New in version 3.12.