Decide what method to use for paging through text.
()
| 15 | |
| 16 | |
| 17 | def get_pager() -> Pager: |
| 18 | """Decide what method to use for paging through text.""" |
| 19 | if not hasattr(sys.stdin, "isatty"): |
| 20 | return plain_pager |
| 21 | if not hasattr(sys.stdout, "isatty"): |
| 22 | return plain_pager |
| 23 | if not sys.stdin.isatty() or not sys.stdout.isatty(): |
| 24 | return plain_pager |
| 25 | if sys.platform == "emscripten": |
| 26 | return plain_pager |
| 27 | use_pager = os.environ.get('MANPAGER') or os.environ.get('PAGER') |
| 28 | if use_pager: |
| 29 | if sys.platform == 'win32': # pipes completely broken in Windows |
| 30 | return lambda text, title='': tempfile_pager(plain(text), use_pager) |
| 31 | elif os.environ.get('TERM') in ('dumb', 'emacs'): |
| 32 | return lambda text, title='': pipe_pager(plain(text), use_pager, title) |
| 33 | else: |
| 34 | return lambda text, title='': pipe_pager(text, use_pager, title) |
| 35 | if os.environ.get('TERM') in ('dumb', 'emacs'): |
| 36 | return plain_pager |
| 37 | if sys.platform == 'win32': |
| 38 | return lambda text, title='': tempfile_pager(plain(text), 'more <') |
| 39 | if hasattr(os, 'system') and os.system('(pager) 2>/dev/null') == 0: |
| 40 | return lambda text, title='': pipe_pager(text, 'pager', title) |
| 41 | if hasattr(os, 'system') and os.system('(less) 2>/dev/null') == 0: |
| 42 | return lambda text, title='': pipe_pager(text, 'less', title) |
| 43 | |
| 44 | import tempfile |
| 45 | (fd, filename) = tempfile.mkstemp() |
| 46 | os.close(fd) |
| 47 | try: |
| 48 | if hasattr(os, 'system') and os.system('more "%s"' % filename) == 0: |
| 49 | return lambda text, title='': pipe_pager(text, 'more', title) |
| 50 | else: |
| 51 | return tty_pager |
| 52 | finally: |
| 53 | os.unlink(filename) |
| 54 | |
| 55 | |
| 56 | def escape_stdout(text: str) -> str: |
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