string_utils.py

#

String manipulation

import logging
import re

LOGGER = logging.getLogger(__name__)

#

Do a series of global replacements on a string.

def replace(text: str, *pairs: str) -> str:

#

    while pairs:
        text = pairs[1].join(text.split(pairs[0]))
        pairs = pairs[2:]
    return text

#

Omit part of a string if needed to make it fit in a maximum length.

def cram(text: str, maxlen: int) -> str:

#

    if len(text) > maxlen:
        pre = max(0, (maxlen - 3) // 2)
        post = max(0, maxlen - 3 - pre)
        return text[:pre] + "..." + text[len(text) - post :]
    return text


_re_stripid = re.compile(r" at 0x[0-9a-f]{6,16}(>+)$", re.IGNORECASE)

#

Remove the hexadecimal id from a Python object representation.

def stripid(text: str) -> str:

#

The behaviour of %p is implementation-dependent in terms of case.

    return _re_stripid.sub(r"\1", text)