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"""String related methods."""
from .demandload import demand_compile_regexp
demand_compile_regexp("_whitespace_regex", r"^(?P<indent>\s+)")
def pluralism(obj, none=None, singular="", plural="s"):
"""Return singular or plural suffix depending on object's length or value."""
# default to plural for empty objects, e.g. there are 0 repos
if none is None:
none = plural
try:
value = len(obj)
except TypeError:
# value is probably an int
value = obj
if value == 0:
return none
elif value == 1:
return singular
return plural
def doc_dedent(s):
"""Support dedenting docstrings with initial line having no indentation."""
try:
lines = s.split("\n")
except AttributeError:
raise TypeError(f"{s!r} is not a string")
if lines:
# find first line with an indent if one exists
for line in lines:
if mo := _whitespace_regex.match(line):
indent = mo.group("indent")
break
else:
indent = ""
len_i = len(indent)
return "\n".join(x[len_i:] if x.startswith(indent) else x for x in lines)
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