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Transforms Unicode character name strings by removing the word 'capital' and capitalizing the following word, converting strings like 'capital delta' to 'Delta'.

Purpose

This function is used as a text transformation utility, specifically for sanitizing Unicode character identifiers. It processes Unicode character names that contain the word 'capital' by removing that prefix and properly capitalizing the remaining character name. This is particularly useful when converting verbose Unicode character names into more concise, programmer-friendly identifiers.

Source Code

def capitalize_unicode_name(s):
    """
    Turns a string such as 'capital delta' into the shortened,
    capitalized version, in this case simply 'Delta'. Used as a
    transform in sanitize_identifier.
    """
    index = s.find('capital')
    if index == -1: return s
    tail = s[index:].replace('capital', '').strip()
    tail = tail[0].upper() + tail[1:]
    return s[:index] + tail

Parameters

Parameter Details

s: A string representing a Unicode character name, potentially containing the word 'capital' (e.g., 'capital delta', 'greek capital letter alpha'). Can be any string, though the function is designed to work with Unicode character names. If 'capital' is not found in the string, the original string is returned unchanged.

Return Value

Returns a string with the word 'capital' removed and the following character capitalized. If 'capital' is not found in the input string, returns the original string unchanged. For example, 'capital delta' becomes 'Delta', 'greek capital letter alpha' becomes 'greek Alpha'. The return type is always a string.

Usage Example

# Basic usage
result1 = capitalize_unicode_name('capital delta')
print(result1)  # Output: 'Delta'

result2 = capitalize_unicode_name('greek capital letter alpha')
print(result2)  # Output: 'greek Alpha'

result3 = capitalize_unicode_name('lowercase sigma')
print(result3)  # Output: 'lowercase sigma' (unchanged)

result4 = capitalize_unicode_name('capital')
print(result4)  # Output: '' (edge case: only 'capital' with nothing after)

# Use in identifier sanitization pipeline
identifier = 'capital delta'
sanitized = capitalize_unicode_name(identifier)
print(sanitized)  # Output: 'Delta'

Best Practices

• This function assumes the input string has at least one character after 'capital' and a space. Edge cases like 'capital' alone or 'capital ' (with only space) may cause IndexError.
• The function is case-sensitive and only searches for lowercase 'capital'. Strings with 'Capital' or 'CAPITAL' will not be transformed.
• Best used as part of a larger identifier sanitization pipeline rather than standalone, as indicated by the docstring reference to 'sanitize_identifier'.
• Consider adding error handling for edge cases where the string after 'capital' is empty or too short to capitalize.
• The function modifies only the first occurrence of 'capital' due to using find() which returns the first index.

Tags

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