def _pages_from_ranges(ranges):
if is_iterable_notstr(ranges):
return set(ranges)
pages = []
page_groups = ranges.replace(' ', '').split(',')
for g in page_groups:
if not g:
continue
try:
start, end = g.split('-')
except ValueError:
pages.append(int(g) - 1)
else:
try:
pages.extend(range(int(start) - 1, int(end)))
except ValueError:
raise BadArgsError("invalid page range")
if not monotonic(pages):
log.warning(
"List of pages to process contains duplicate pages, or pages that are "
"out of order")
if any(page < 0 for page in pages):
raise BadArgsError("pages refers to a page number less than 1")
log.debug("OCRing only these pages: %s", pages)
return set(pages)
def _pages_from_ranges(ranges: str) -> Set[int]:
pages: List[int] = []
page_groups = ranges.replace(' ', '').split(',')
for g in page_groups:
if not g:
continue
try:
start, end = g.split('-')
except ValueError:
pages.append(int(g) - 1)
else:
try:
new_pages = list(range(int(start) - 1, int(end)))
if not new_pages:
raise BadArgsError(
f"invalid page subrange '{start}-{end}'") from None
pages.extend(new_pages)
except ValueError:
raise BadArgsError(f"invalid page subrange '{g}'") from None
if not pages:
raise BadArgsError(
f"The string of page ranges '{ranges}' did not contain any recognizable "
f"page ranges.")
if not monotonic(pages):
log.warning(
"List of pages to process contains duplicate pages, or pages that are "
"out of order")
if any(page < 0 for page in pages):
raise BadArgsError("pages refers to a page number less than 1")
log.debug("OCRing only these pages: %s", pages)
return set(pages)
