forked from solderpunk/AV-98
1389 lines
53 KiB
Python
Executable File
1389 lines
53 KiB
Python
Executable File
#!/bin/python
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import os
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import sys
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import shutil
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import tempfile
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import subprocess
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import textwrap
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import time
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import html
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import urllib
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import argparse
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import mimetypes
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import fnmatch
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import netcache
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from offutils import run,term_width
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try:
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from readability import Document
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_HAS_READABILITY = True
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except ModuleNotFoundError:
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_HAS_READABILITY = False
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try:
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from bs4 import BeautifulSoup
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from bs4 import Comment
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_HAS_SOUP = True
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except ModuleNotFoundError:
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_HAS_SOUP = False
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_DO_HTML = _HAS_SOUP #and _HAS_READABILITY
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if _DO_HTML and not _HAS_READABILITY:
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print("To improve your web experience (less cruft in webpages),")
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print("please install python3-readability or readability-lxml")
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try:
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import feedparser
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_DO_FEED = True
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except ModuleNotFoundError:
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_DO_FEED = False
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less_version = 0
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if not shutil.which("less"):
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print("Please install the pager \"less\" to run Offpunk.")
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print("If you wish to use another pager, send me an email !")
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print("(I’m really curious to hear about people not having \"less\" on their system.)")
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sys.exit()
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output = run("less --version")
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# We get less Version (which is the only integer on the first line)
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words = output.split("\n")[0].split()
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less_version = 0
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for w in words:
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if w.isdigit():
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less_version = int(w)
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# restoring position only works for version of less > 572
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if less_version >= 572:
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_LESS_RESTORE_POSITION = True
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else:
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_LESS_RESTORE_POSITION = False
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#_DEFAULT_LESS = "less -EXFRfM -PMurl\ lines\ \%lt-\%lb/\%L\ \%Pb\%$ %s"
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# -E : quit when reaching end of file (to behave like "cat")
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# -F : quit if content fits the screen (behave like "cat")
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# -X : does not clear the screen
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# -R : interpret ANSI colors correctly
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# -f : suppress warning for some contents
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# -M : long prompt (to have info about where you are in the file)
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# -W : hilite the new first line after a page skip (space)
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# -i : ignore case in search
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# -S : do not wrap long lines. Wrapping is done by offpunk, longlines
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# are there on purpose (surch in asciiart)
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#--incsearch : incremental search starting rev581
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if less_version >= 581:
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less_base = "less --incsearch --save-marks -~ -XRfMWiS"
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elif less_version >= 572:
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less_base = "less --save-marks -XRfMWiS"
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else:
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less_base = "less -XRfMWiS"
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_DEFAULT_LESS = less_base + " \"+''\" %s"
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_DEFAULT_CAT = less_base + " -EF %s"
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def less_cmd(file, histfile=None,cat=False,grep=None):
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if histfile:
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env = {"LESSHISTFILE": histfile}
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else:
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env = {}
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if cat:
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cmd_str = _DEFAULT_CAT
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elif grep:
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grep_cmd = _GREP
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#case insensitive for lowercase search
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if grep.islower():
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grep_cmd += " -i"
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cmd_str = _DEFAULT_CAT + "|" + grep_cmd + " %s"%grep
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else:
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cmd_str = _DEFAULT_LESS
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run(cmd_str, parameter=file, direct_output=True, env=env)
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try:
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from PIL import Image
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_HAS_PIL = True
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except ModuleNotFoundError:
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_HAS_PIL = False
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_HAS_TIMG = shutil.which('timg')
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_HAS_CHAFA = shutil.which('chafa')
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_NEW_CHAFA = False
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_NEW_TIMG = False
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_RENDER_IMAGE = False
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# All this code to know if we render image inline or not
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if _HAS_CHAFA:
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# starting with 1.10, chafa can return only one frame
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# which allows us to drop dependancy for PIL
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output = run("chafa --version")
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# output is "Chafa version M.m.p"
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# check for m < 1.10
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try:
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chafa_major, chafa_minor, _ = output.split("\n")[0].split(" ")[-1].split(".")
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if int(chafa_major) >= 1 and int(chafa_minor) >= 10:
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_NEW_CHAFA = True
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except:
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pass
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if _NEW_CHAFA :
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_RENDER_IMAGE = True
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if _HAS_TIMG :
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try:
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output = run("timg --version")
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except subprocess.CalledProcessError:
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output = False
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# We don’t deal with timg before 1.3.2 (looping options)
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if output and output[5:10] > "1.3.2":
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_NEW_TIMG = True
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_RENDER_IMAGE = True
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elif _HAS_CHAFA and _HAS_PIL:
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_RENDER_IMAGE = True
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if not _RENDER_IMAGE:
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print("To render images inline, you need either chafa or timg.")
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if not _NEW_CHAFA and not _NEW_TIMG:
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print("Before Chafa 1.10, you also need python-pil")
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# This method return the image URL or invent it if it’s a base64 inline image
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# It returns [url,image_data] where image_data is None for normal image
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def looks_like_base64(src,baseurl):
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imgdata = None
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imgname = src
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if src and src.startswith("data:image/"):
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if ";base64," in src:
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splitted = src.split(";base64,")
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extension = splitted[0].strip("data:image/")[:3]
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imgdata = splitted[1]
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imgname = imgdata[:20] + "." + extension
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imgurl = urllib.parse.urljoin(baseurl, imgname)
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else:
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#We can’t handle other data:image such as svg for now
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imgurl = None
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else:
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imgurl = urllib.parse.urljoin(baseurl, imgname)
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return imgurl,imgdata
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#return ANSI text that can be show by less
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def inline_image(img_file,width):
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#Chafa is faster than timg inline. Let use that one by default
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inline = None
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ansi_img = ""
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#We avoid errors by not trying to render non-image files
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if shutil.which("file"):
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mime = run("file -b --mime-type %s", parameter=img_file).strip()
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if not "image" in mime:
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return ansi_img
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if _HAS_CHAFA:
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if _HAS_PIL and not _NEW_CHAFA:
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# this code is a hack to remove frames from animated gif
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img_obj = Image.open(img_file)
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if hasattr(img_obj,"n_frames") and img_obj.n_frames > 1:
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# we remove all frames but the first one
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img_obj.save(img_file,format="gif",save_all=False)
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inline = "chafa --bg white -s %s -f symbols"
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elif _NEW_CHAFA:
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inline = "chafa --bg white -t 1 -s %s -f symbols --animate=off"
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if not inline and _NEW_TIMG:
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inline = "timg --frames=1 -p q -g %sx1000"
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if inline:
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cmd = inline%width + " %s"
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try:
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ansi_img = run(cmd, parameter=img_file)
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except Exception as err:
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ansi_img = "***image failed : %s***\n" %err
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return ansi_img
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def terminal_image(img_file):
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#Render by timg is better than old chafa.
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# it is also centered
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cmd = None
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if _NEW_TIMG:
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cmd = "timg --loops=1 -C"
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elif _HAS_CHAFA:
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cmd = "chafa -d 0 --bg white -t 1 -w 1"
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if cmd:
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cmd = cmd + " %s"
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run(cmd, parameter=img_file, direct_output=True)
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# First, we define the different content->text renderers, outside of the rest
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# (They could later be factorized in other files or replaced)
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class AbstractRenderer():
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def __init__(self,content,url,center=True):
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self.url = url
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self.body = str(content)
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#there’s one rendered text and one links table per mode
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self.rendered_text = {}
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self.links = {}
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self.images = {}
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self.title = None
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self.validity = True
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self.temp_files = {}
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self.less_histfile = {}
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self.center = center
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self.last_mode = "readable"
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#This class hold an internal representation of the HTML text
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class representation:
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def __init__(self,width,title=None,center=True):
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self.title=title
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self.center = center
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self.final_text = ""
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self.opened = []
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self.width = width
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self.last_line = ""
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self.last_line_colors = {}
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self.last_line_center = False
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self.new_paragraph = True
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self.i_indent = ""
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self.s_indent = ""
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self.r_indent = ""
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self.current_indent = ""
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self.disabled_indents = None
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# each color is an [open,close] pair code
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self.colors = {
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"bold" : ["1","22"],
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"faint" : ["2","22"],
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"italic" : ["3","23"],
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"underline": ["4","24"],
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"red" : ["31","39"],
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"yellow" : ["33","39"],
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"blue" : ["34","39"],
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}
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def _insert(self,color,open=True):
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if open: o = 0
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else: o = 1
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pos = len(self.last_line)
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#we remember the position where to insert color codes
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if not pos in self.last_line_colors:
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self.last_line_colors[pos] = []
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#Two inverse code cancel each other
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if [color,int(not o)] in self.last_line_colors[pos]:
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self.last_line_colors[pos].remove([color,int(not o)])
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else:
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self.last_line_colors[pos].append([color,o])#+color+str(o))
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# Take self.last line and add ANSI codes to it before adding it to
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# self.final_text.
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def _endline(self):
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if len(self.last_line.strip()) > 0:
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for c in self.opened:
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self._insert(c,open=False)
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nextline = ""
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added_char = 0
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#we insert the color code at the saved positions
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while len (self.last_line_colors) > 0:
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pos,colors = self.last_line_colors.popitem()
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#popitem itterates LIFO.
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#So we go, backward, to the pos (starting at the end of last_line)
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nextline = self.last_line[pos:] + nextline
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ansicol = "\x1b["
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for c,o in colors:
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ansicol += self.colors[c][o] + ";"
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ansicol = ansicol[:-1]+"m"
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nextline = ansicol + nextline
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added_char += len(ansicol)
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self.last_line = self.last_line[:pos]
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nextline = self.last_line + nextline
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if self.last_line_center:
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#we have to care about the ansi char while centering
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width = term_width() + added_char
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nextline = nextline.strip().center(width)
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self.last_line_center = False
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else:
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#should we lstrip the nextline in the addition ?
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nextline = self.current_indent + nextline.lstrip() + self.r_indent
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self.current_indent = self.s_indent
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self.final_text += nextline
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self.last_line = ""
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self.final_text += "\n"
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for c in self.opened:
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self._insert(c,open=True)
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else:
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self.last_line = ""
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def center_line(self):
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self.last_line_center = True
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def open_color(self,color):
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if color in self.colors and color not in self.opened:
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self._insert(color,open=True)
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self.opened.append(color)
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def close_color(self,color):
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if color in self.colors and color in self.opened:
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self._insert(color,open=False)
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self.opened.remove(color)
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def close_all(self):
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if len(self.colors) > 0:
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self.last_line += "\x1b[0m"
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self.opened.clear()
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def startindent(self,indent,sub=None,reverse=None):
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self._endline()
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self.i_indent = indent
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self.current_indent = indent
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if sub:
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self.s_indent = sub
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else:
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self.s_indent = indent
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if reverse:
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self.r_indent = reverse
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else:
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self.r_indent = ""
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def endindent(self):
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self._endline()
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self.i_indent = ""
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self.s_indent = ""
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self.r_indent = ""
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self.current_indent = ""
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def _disable_indents(self):
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self.disabled_indents = []
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self.disabled_indents.append(self.current_indent)
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self.disabled_indents.append(self.i_indent)
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self.disabled_indents.append(self.s_indent)
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self.disabled_indents.append(self.r_indent)
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self.endindent()
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def _enable_indents(self):
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if self.disabled_indents:
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self.current_indent = self.disabled_indents[0]
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self.i_indent = self.disabled_indents[1]
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self.s_indent = self.disabled_indents[2]
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self.r_indent = self.disabled_indents[3]
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self.disabled_indents = None
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def newline(self):
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self._endline()
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#A new paragraph implies 2 newlines (1 blank line between paragraphs)
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#But it is only used if didn’t already started one to avoid plenty
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#of blank lines. force=True allows to bypass that limit.
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#new_paragraph becomes false as soon as text is entered into it
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def newparagraph(self,force=False):
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if force or not self.new_paragraph:
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self._endline()
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self.final_text += "\n"
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self.new_paragraph = True
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def add_space(self):
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if len(self.last_line) > 0 and self.last_line[-1] != " ":
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self.last_line += " "
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def _title_first(self,intext=None):
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if self.title:
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if not self.title == intext:
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self._disable_indents()
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self.open_color("blue")
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self.open_color("bold")
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self.open_color("underline")
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self.add_text(self.title)
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self.close_all()
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self.newparagraph()
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self._enable_indents()
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self.title = None
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# Beware, blocks are not wrapped nor indented and left untouched!
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# They are mostly useful for pictures and preformatted text.
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def add_block(self,intext):
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# If necessary, we add the title before a block
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self._title_first()
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# we don’t want to indent blocks
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self._endline()
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self._disable_indents()
|
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self.final_text += self.current_indent + intext
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self.new_paragraph = False
|
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self._endline()
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self._enable_indents()
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|
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def add_text(self,intext):
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self._title_first(intext=intext)
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lines = []
|
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last = (self.last_line + intext)
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self.last_line = ""
|
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# With the following, we basically cancel adding only spaces
|
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# on an empty line
|
||
if len(last.strip()) > 0:
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||
self.new_paragraph = False
|
||
else:
|
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last = last.strip()
|
||
if len(last) > self.width:
|
||
width = self.width - len(self.current_indent) - len(self.r_indent)
|
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spaces_left = len(last) - len(last.lstrip())
|
||
spaces_right = len(last) - len(last.rstrip())
|
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lines = textwrap.wrap(last,width,drop_whitespace=True)
|
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self.last_line += spaces_left*" "
|
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while len(lines) > 1:
|
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l = lines.pop(0)
|
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self.last_line += l
|
||
self._endline()
|
||
if len(lines) == 1:
|
||
li = lines[0]
|
||
self.last_line += li + spaces_right*" "
|
||
else:
|
||
self.last_line = last
|
||
|
||
def get_final(self):
|
||
self.close_all()
|
||
self._endline()
|
||
#if no content, we still add the title
|
||
self._title_first()
|
||
lines = self.final_text.splitlines()
|
||
lines2 = []
|
||
termspace = shutil.get_terminal_size()[0]
|
||
#Following code instert blanck spaces to center the content
|
||
if self.center and termspace > term_width():
|
||
margin = int((termspace - term_width())//2)
|
||
else:
|
||
margin = 0
|
||
for l in lines :
|
||
lines2.append(margin*" "+l)
|
||
return "\n".join(lines2)
|
||
|
||
def get_subscribe_links(self):
|
||
return [[self.url,self.get_mime(),self.get_title()]]
|
||
def is_valid(self):
|
||
return self.validity
|
||
def is_local(self):
|
||
#TODO with self.url
|
||
return False
|
||
def set_mode(self,mode):
|
||
self.last_mode = mode
|
||
def get_links(self,mode=None):
|
||
# This method is used to load once the list of links in a gi
|
||
# Links can be followed, after a space, by a description/title
|
||
#TODO: remove this code
|
||
# def get_links(self,mode=None):
|
||
# links = []
|
||
# toreturn = []
|
||
# if self.renderer:
|
||
# if not mode:
|
||
# mode = self.renderer.last_mode
|
||
# links = self.renderer.get_links(mode=mode)
|
||
# for l in links:
|
||
# #split between link and potential name
|
||
# # check that l is non-empty
|
||
# url = None
|
||
# if l:
|
||
# splitted = l.split(maxsplit=1)
|
||
# url = self.absolutise_url(splitted[0])
|
||
# if url and looks_like_url(url):
|
||
# if len(splitted) > 1:
|
||
# #We add a name only for Gopher items
|
||
# if url.startswith("gopher://"):
|
||
# newgi = GeminiItem(url,name=splitted[1])
|
||
# else:
|
||
# newgi = GeminiItem(url)
|
||
# else:
|
||
# newgi = GeminiItem(url)
|
||
# toreturn.append(newgi)
|
||
# elif url and mode != "links_only" and url.startswith("data:image/"):
|
||
# imgurl,imgdata = ansirenderer.looks_like_base64(url,self.url)
|
||
# if imgurl:
|
||
# toreturn.append(GeminiItem(imgurl))
|
||
# else:
|
||
# toreturn.append(None)
|
||
# else:
|
||
# # We must include a None item to keep the link count valid
|
||
# toreturn.append(None)
|
||
# return toreturn
|
||
if not mode: mode = self.last_mode
|
||
if mode not in self.links :
|
||
prepared_body = self.prepare(self.body,mode=mode)
|
||
results = self.render(prepared_body,mode=mode)
|
||
if results:
|
||
#we should absolutize all URLs here
|
||
self.links[mode] = []
|
||
for l in results[1]:
|
||
abs_l = urllib.parse.urljoin(self.url,l.split()[0])
|
||
self.links[mode].append(abs_l)
|
||
for l in self.get_subscribe_links()[1:]:
|
||
self.links[mode].append(l[0])
|
||
return self.links[mode]
|
||
def get_link(self,nb):
|
||
links = self.get_links()
|
||
if len(links) < nb:
|
||
print("Index too high! No link %s for %s" %(nb,self.url))
|
||
return None
|
||
else:
|
||
return links[nb-1]
|
||
|
||
#get_title is about the "content title", so the title in the page itself
|
||
def get_title(self):
|
||
return "Abstract title"
|
||
|
||
def get_page_title(self):
|
||
title = self.get_title()
|
||
if not title or len(title) == 0:
|
||
title = self.get_url_title()
|
||
else:
|
||
title += " (%s)" %self.get_url_title()
|
||
return title
|
||
|
||
#this function is about creating a title derived from the URL
|
||
def get_url_title(self):
|
||
#small intelligence to try to find a good name for a capsule
|
||
#we try to find eithe ~username or /users/username
|
||
#else we fallback to hostname
|
||
#TODO: handle local name
|
||
# if self.local:
|
||
# if self.name != "":
|
||
# red_title = self.name
|
||
# else:
|
||
# red_title = self.path
|
||
# else:
|
||
#TODO: handle host and path separation
|
||
red_title = "TODO:host" #self.host
|
||
path = self.url
|
||
if "user" in path:
|
||
i = 0
|
||
splitted = path.split("/")
|
||
while i < (len(splitted)-1):
|
||
if splitted[i].startswith("user"):
|
||
red_title = splitted[i+1]
|
||
i += 1
|
||
if "~" in path:
|
||
for pp in path.split("/"):
|
||
if pp.startswith("~"):
|
||
red_title = pp[1:]
|
||
return red_title
|
||
|
||
# This function return a list of URL which should be downloaded
|
||
# before displaying the page (images in HTML pages, typically)
|
||
def get_images(self,mode=None):
|
||
if not mode: mode = self.last_mode
|
||
if not mode in self.images:
|
||
self.get_body(mode=mode)
|
||
# we also invalidate the body that was done without images
|
||
self.rendered_text.pop(mode)
|
||
if mode in self.images:
|
||
return self.images[mode]
|
||
else:
|
||
return []
|
||
#This function will give gemtext to the gemtext renderer
|
||
def prepare(self,body,mode=None):
|
||
return body
|
||
|
||
def get_body(self,width=None,mode=None):
|
||
if not mode: mode = self.last_mode
|
||
if not width:
|
||
width = term_width()
|
||
if mode not in self.rendered_text:
|
||
prepared_body = self.prepare(self.body,mode=mode)
|
||
result = self.render(prepared_body,width=width,mode=mode)
|
||
if result:
|
||
self.rendered_text[mode] = result[0]
|
||
#The following is there to prepoulate self.links
|
||
#but it seems to slow down a lot the loading
|
||
#self.links[mode] = []
|
||
#we should absolutize all URLs here
|
||
#for l in result[1]:
|
||
# abs_l = urllib.parse.urljoin(self.url,l.split()[0])
|
||
# self.links[mode].append(abs_l)
|
||
return self.rendered_text[mode]
|
||
|
||
def _window_title(self,title,info=None):
|
||
title_r = self.representation(term_width())
|
||
title_r.open_color("red")
|
||
title_r.open_color("bold")
|
||
title_r.add_text(title)
|
||
title_r.close_color("bold")
|
||
if info:
|
||
title_r.add_text(" (%s)"%info)
|
||
title_r.close_color("red")
|
||
return title_r.get_final()
|
||
|
||
def display(self,mode=None,window_title="",window_info=None,grep=None):
|
||
if mode: self.last_mode = mode
|
||
else: mode = self.last_mode
|
||
wtitle = self._window_title(window_title,info=window_info)
|
||
body = wtitle + "\n" + self.get_body(mode=mode)
|
||
if not body:
|
||
return False
|
||
# We actually put the body in a tmpfile before giving it to less
|
||
if mode not in self.temp_files:
|
||
tmpf = tempfile.NamedTemporaryFile("w", encoding="UTF-8", delete=False)
|
||
self.temp_files[mode] = tmpf.name
|
||
tmpf.write(body)
|
||
tmpf.close()
|
||
if mode not in self.less_histfile:
|
||
firsttime = True
|
||
tmpf = tempfile.NamedTemporaryFile("w", encoding="UTF-8", delete=False)
|
||
self.less_histfile[mode] = tmpf.name
|
||
else:
|
||
firsttime = False
|
||
less_cmd(self.temp_files[mode], histfile=self.less_histfile[mode],cat=firsttime,grep=grep)
|
||
return True
|
||
|
||
def get_temp_file(self,mode=None):
|
||
if not mode: mode = self.last_mode
|
||
if mode in self.temp_files:
|
||
return self.temp_files[mode]
|
||
else:
|
||
return None
|
||
|
||
# An instance of AbstractRenderer should have a self.render(body,width,mode) method.
|
||
# 3 modes are used : readable (by default), full and links_only (the fastest, when
|
||
# rendered content is not used, only the links are needed)
|
||
# The prepare() function is called before the rendering. It is useful if
|
||
# your renderer output in a format suitable for another existing renderer (such as gemtext)
|
||
|
||
# Gemtext Rendering Engine
|
||
class GemtextRenderer(AbstractRenderer):
|
||
def get_mime(self):
|
||
return "text/gemini"
|
||
def get_title(self):
|
||
if self.title:
|
||
return self.title
|
||
elif self.body:
|
||
lines = self.body.splitlines()
|
||
for line in lines:
|
||
if line.startswith("#"):
|
||
self.title = line.strip("#").strip()
|
||
return self.title
|
||
if len(lines) > 0:
|
||
# If not title found, we take the first 50 char
|
||
# of the first line
|
||
title_line = lines[0].strip()
|
||
if len(title_line) > 50:
|
||
title_line = title_line[:49] + "…"
|
||
self.title = title_line
|
||
return self.title
|
||
else:
|
||
self.title = "Empty Page"
|
||
return self.title
|
||
else:
|
||
return "Unknown Gopher Page"
|
||
|
||
#render_gemtext
|
||
def render(self,gemtext, width=None,mode=None):
|
||
if not width:
|
||
width = term_width()
|
||
r = self.representation(width)
|
||
links = []
|
||
hidden_links = []
|
||
preformatted = False
|
||
def format_link(url,index,name=None):
|
||
if "://" in url:
|
||
protocol,adress = url.split("://",maxsplit=1)
|
||
protocol = " %s" %protocol
|
||
else:
|
||
adress = url
|
||
protocol = ""
|
||
if "gemini" in protocol or "list" in protocol:
|
||
protocol = ""
|
||
if not name:
|
||
name = adress
|
||
line = "[%d%s] %s" % (index, protocol, name)
|
||
return line
|
||
for line in gemtext.splitlines():
|
||
r.newline()
|
||
if line.startswith("```"):
|
||
preformatted = not preformatted
|
||
elif preformatted:
|
||
# infinite line to not wrap preformated
|
||
r.add_block(line+"\n")
|
||
elif len(line.strip()) == 0:
|
||
r.newparagraph(force=True)
|
||
elif line.startswith("=>"):
|
||
strippedline = line[2:].strip()
|
||
if strippedline:
|
||
links.append(strippedline)
|
||
splitted = strippedline.split(maxsplit=1)
|
||
url = splitted[0]
|
||
name = None
|
||
if len(splitted) > 1:
|
||
name = splitted[1]
|
||
link = format_link(url,len(links),name=name)
|
||
#r.open_color("blue")
|
||
#r.open_color("faint")
|
||
#r.open_color("underline")
|
||
startpos = link.find("] ") + 2
|
||
r.startindent("",sub=startpos*" ")
|
||
r.add_text(link)
|
||
r.endindent()
|
||
#r.close_all()
|
||
elif line.startswith("* "):
|
||
line = line[1:].lstrip("\t ")
|
||
r.startindent("• ",sub=" ")
|
||
r.add_text(line)
|
||
r.endindent()
|
||
elif line.startswith(">"):
|
||
line = line[1:].lstrip("\t ")
|
||
r.startindent("> ")
|
||
r.add_text(line)
|
||
r.endindent()
|
||
elif line.startswith("###"):
|
||
line = line[3:].lstrip("\t ")
|
||
r.open_color("blue")
|
||
r.add_text(line)
|
||
r.close_color("blue")
|
||
elif line.startswith("##"):
|
||
line = line[2:].lstrip("\t ")
|
||
r.open_color("blue")
|
||
r.add_text(line)
|
||
r.close_color("blue")
|
||
elif line.startswith("#"):
|
||
line = line[1:].lstrip("\t ")
|
||
if not self.title:
|
||
self.title = line
|
||
r.open_color("bold")
|
||
r.open_color("blue")
|
||
r.open_color("underline")
|
||
r.add_text(line)
|
||
r.close_color("underline")
|
||
r.close_color("bold")
|
||
r.close_color("blue")
|
||
else:
|
||
if "://" in line:
|
||
words = line.split()
|
||
for w in words:
|
||
if "://" in w:
|
||
hidden_links.append(w)
|
||
r.add_text(line.rstrip())
|
||
links += hidden_links
|
||
return r.get_final(), links
|
||
|
||
class GopherRenderer(AbstractRenderer):
|
||
def get_mime(self):
|
||
return "text/gopher"
|
||
def get_title(self):
|
||
if not self.title:
|
||
self.title = ""
|
||
if self.body:
|
||
firstline = self.body.splitlines()[0]
|
||
firstline = firstline.split("\t")[0]
|
||
if firstline.startswith("i"):
|
||
firstline = firstline[1:]
|
||
self.title = firstline
|
||
return self.title
|
||
|
||
#menu_or_text
|
||
def render(self,body,width=None,mode=None):
|
||
if not width:
|
||
width = term_width()
|
||
try:
|
||
render,links = self._render_goph(body,width=width,mode=mode)
|
||
except Exception as err:
|
||
print("Error rendering Gopher ",err)
|
||
r = self.representation(width)
|
||
r.add_block(body)
|
||
render = r.get_final()
|
||
links = []
|
||
return render,links
|
||
|
||
def _render_goph(self,body,width=None,mode=None):
|
||
if not width:
|
||
width = term_width()
|
||
# This was copied straight from Agena (then later adapted)
|
||
links = []
|
||
r = self.representation(width)
|
||
for line in self.body.split("\n"):
|
||
r.newline()
|
||
if line.startswith("i"):
|
||
towrap = line[1:].split("\t")[0]
|
||
if len(towrap.strip()) > 0:
|
||
r.add_text(towrap)
|
||
else:
|
||
r.newparagraph()
|
||
elif not line.strip() in [".",""]:
|
||
parts = line.split("\t")
|
||
parts[-1] = parts[-1].strip()
|
||
if parts[-1] == "+":
|
||
parts = parts[:-1]
|
||
if len(parts) == 4:
|
||
name,path,host,port = parts
|
||
itemtype = name[0]
|
||
name = name[1:]
|
||
if port == "70":
|
||
port = ""
|
||
else:
|
||
port = ":%s"%port
|
||
if itemtype == "h" and path.startswith("URL:"):
|
||
url = path[4:]
|
||
else:
|
||
url = "gopher://%s%s/%s%s" %(host,port,itemtype,path)
|
||
url = url.replace(" ","%20")
|
||
linkline = url + " " + name
|
||
links.append(linkline)
|
||
towrap = "[%s] "%len(links)+ name
|
||
r.add_text(towrap)
|
||
else:
|
||
r.add_text(line)
|
||
return r.get_final(),links
|
||
|
||
|
||
class FolderRenderer(GemtextRenderer):
|
||
#it was initialized with:
|
||
#self.renderer = FolderRenderer("",self.get_cache_path(),datadir=_DATA_DIR)
|
||
def __init__(self,content,url,center=True,datadir=None):
|
||
GemtextRenderer.__init__(self,content,url,center)
|
||
self.datadir = datadir
|
||
|
||
def get_mime(self):
|
||
return "Directory"
|
||
def prepare(self,body,mode=None):
|
||
def get_first_line(l):
|
||
path = os.path.join(listdir,l+".gmi")
|
||
with open(path) as f:
|
||
first_line = f.readline().strip()
|
||
f.close()
|
||
if first_line.startswith("#"):
|
||
return first_line
|
||
else:
|
||
return None
|
||
def write_list(l):
|
||
body = ""
|
||
for li in l:
|
||
path = "list:///%s"%li
|
||
#TODO : size of lists
|
||
#gi = GeminiItem(path)
|
||
#size = len(gi.get_links())
|
||
size = "TODO"
|
||
body += "=> %s %s (%s items)\n" %(str(path),li,size)
|
||
return body
|
||
listdir = os.path.join(self.datadir,"lists")
|
||
if self.url != listdir:
|
||
return "This is folder %s" %self.url
|
||
else:
|
||
self.title = "My lists"
|
||
lists = []
|
||
if os.path.exists(listdir):
|
||
listfiles = os.listdir(listdir)
|
||
if len(listfiles) > 0:
|
||
for l in listfiles:
|
||
#removing the .gmi at the end of the name
|
||
lists.append(l[:-4])
|
||
if len(lists) > 0:
|
||
body = ""
|
||
my_lists = []
|
||
system_lists = []
|
||
subscriptions = []
|
||
frozen = []
|
||
lists.sort()
|
||
for l in lists:
|
||
if l in ["history","to_fetch","archives","tour"]:
|
||
system_lists.append(l)
|
||
else:
|
||
first_line = get_first_line(l)
|
||
if first_line and "#subscribed" in first_line:
|
||
subscriptions.append(l)
|
||
elif first_line and "#frozen" in first_line:
|
||
frozen.append(l)
|
||
else:
|
||
my_lists.append(l)
|
||
if len(my_lists) > 0:
|
||
body+= "\n## Bookmarks Lists (updated during sync)\n"
|
||
body += write_list(my_lists)
|
||
if len(subscriptions) > 0:
|
||
body +="\n## Subscriptions (new links in those are added to tour)\n"
|
||
body += write_list(subscriptions)
|
||
if len(frozen) > 0:
|
||
body +="\n## Frozen (fetched but never updated)\n"
|
||
body += write_list(frozen)
|
||
if len(system_lists) > 0:
|
||
body +="\n## System Lists\n"
|
||
body += write_list(system_lists)
|
||
return body
|
||
|
||
class FeedRenderer(GemtextRenderer):
|
||
def get_mime(self):
|
||
return "application/rss+xml"
|
||
def is_valid(self):
|
||
if _DO_FEED:
|
||
parsed = feedparser.parse(self.body)
|
||
else:
|
||
return False
|
||
if parsed.bozo:
|
||
return False
|
||
else:
|
||
#If no content, then fallback to HTML
|
||
return len(parsed.entries) > 0
|
||
|
||
def get_title(self):
|
||
if not self.title:
|
||
self.get_body()
|
||
return self.title
|
||
|
||
def prepare(self,content,mode=None,width=None):
|
||
if not mode: mode = self.last_mode
|
||
if not width:
|
||
width = term_width()
|
||
self.title = "RSS/Atom feed"
|
||
page = ""
|
||
if _DO_FEED:
|
||
parsed = feedparser.parse(content)
|
||
else:
|
||
page += "Please install python-feedparser to handle RSS/Atom feeds\n"
|
||
self.validity = False
|
||
return page
|
||
if parsed.bozo:
|
||
page += "Invalid RSS feed\n\n"
|
||
page += str(parsed.bozo_exception)
|
||
self.validity = False
|
||
else:
|
||
if "title" in parsed.feed:
|
||
t = parsed.feed.title
|
||
else:
|
||
t = "Unknown"
|
||
self.title = "%s (XML feed)" %t
|
||
title = "# %s"%self.title
|
||
page += title + "\n"
|
||
if "updated" in parsed.feed:
|
||
page += "Last updated on %s\n\n" %parsed.feed.updated
|
||
if "subtitle" in parsed.feed:
|
||
page += parsed.feed.subtitle + "\n"
|
||
if "link" in parsed.feed:
|
||
page += "=> %s\n" %parsed.feed.link
|
||
page += "\n## Entries\n"
|
||
if len(parsed.entries) < 1:
|
||
self.validity = False
|
||
for i in parsed.entries:
|
||
line = "=> %s " %i.link
|
||
if "published" in i:
|
||
pub_date = time.strftime("%Y-%m-%d",i.published_parsed)
|
||
line += pub_date + " : "
|
||
if "title" in i:
|
||
line += "%s" %(i.title)
|
||
if "author" in i:
|
||
line += " (by %s)"%i.author
|
||
page += line + "\n"
|
||
if mode == "full":
|
||
if "summary" in i:
|
||
html = HtmlRenderer(i.summary,self.url,center=False)
|
||
rendered = html.get_body(width=None,mode="full")
|
||
page += "\n"
|
||
page += rendered
|
||
page += "\n------------\n\n"
|
||
return page
|
||
|
||
class ImageRenderer(AbstractRenderer):
|
||
def get_mime(self):
|
||
return "image/*"
|
||
def is_valid(self):
|
||
if _RENDER_IMAGE:
|
||
return True
|
||
else:
|
||
return False
|
||
def get_links(self,mode=None):
|
||
return []
|
||
def get_title(self):
|
||
return "Picture file"
|
||
def render(self,img,width=None,mode=None):
|
||
#with inline, we use symbols to be rendered with less.
|
||
#else we use the best possible renderer.
|
||
if mode == "links_only":
|
||
return "", []
|
||
if not width:
|
||
width = term_width()
|
||
spaces = 0
|
||
else:
|
||
spaces = int((term_width() - width)//2)
|
||
ansi_img = inline_image(img,width)
|
||
#Now centering the image
|
||
lines = ansi_img.splitlines()
|
||
new_img = ""
|
||
for l in lines:
|
||
new_img += spaces*" " + l + "\n"
|
||
return new_img, []
|
||
def display(self,mode=None,window_title=None,window_info=None,grep=None):
|
||
if window_title:
|
||
print(self._window_title(window_title,info=window_info))
|
||
terminal_image(self.body)
|
||
return True
|
||
|
||
class HtmlRenderer(AbstractRenderer):
|
||
def get_mime(self):
|
||
return "text/html"
|
||
def is_valid(self):
|
||
if not _DO_HTML:
|
||
print("HTML document detected. Please install python-bs4 and python-readability.")
|
||
return _DO_HTML and self.validity
|
||
def get_subscribe_links(self):
|
||
subs = [[self.url,self.get_mime(),self.get_title()]]
|
||
soup = BeautifulSoup(self.body, 'html.parser')
|
||
links = soup.find_all("link",rel="alternate",recursive=True)
|
||
for l in links:
|
||
ty = l.get("type")
|
||
if ty :
|
||
if "rss" in ty or "atom" in ty or "feed" in ty:
|
||
# some rss links are relatives: we absolutise_url
|
||
sublink = urllib.parse.urljoin(self.url, l.get("href"))
|
||
subs.append([sublink,ty,l.get("title")])
|
||
return subs
|
||
|
||
def get_title(self):
|
||
if self.title:
|
||
return self.title
|
||
elif self.body:
|
||
if _HAS_READABILITY:
|
||
try:
|
||
readable = Document(self.body)
|
||
self.title = readable.short_title()
|
||
return self.title
|
||
except Exception as err:
|
||
pass
|
||
soup = BeautifulSoup(self.body,"html.parser")
|
||
self.title = str(soup.title.string)
|
||
else:
|
||
return ""
|
||
|
||
# Our own HTML engine (crazy, isn’t it?)
|
||
# Return [rendered_body, list_of_links]
|
||
# mode is either links_only, readable or full
|
||
def render(self,body,mode=None,width=None,add_title=True):
|
||
if not mode: mode = self.last_mode
|
||
if not width:
|
||
width = term_width()
|
||
if not _DO_HTML:
|
||
print("HTML document detected. Please install python-bs4 and python-readability.")
|
||
return
|
||
# This method recursively parse the HTML
|
||
r = self.representation(width,title=self.get_title(),center=self.center)
|
||
links = []
|
||
# You know how bad html is when you realize that space sometimes meaningful, somtimes not.
|
||
# CR are not meaniningful. Except that, somethimes, they should be interpreted as spaces.
|
||
# HTML is real crap. At least the one people are generating.
|
||
|
||
def render_image(src,width=40,mode=None):
|
||
ansi_img = ""
|
||
imgurl,imgdata = looks_like_base64(src,self.url)
|
||
if _RENDER_IMAGE and mode != "links_only" and imgurl:
|
||
try:
|
||
#4 followings line are there to translate the URL into cache path
|
||
img = netcache.get_cache_path(imgurl)
|
||
if imgdata:
|
||
with open(img,"wb") as cached:
|
||
cached.write(base64.b64decode(imgdata))
|
||
cached.close()
|
||
if netcache.is_cache_valid(img):
|
||
renderer = ImageRenderer(img,imgurl)
|
||
# Image are 40px wide except if terminal is smaller
|
||
if width > 40:
|
||
size = 40
|
||
else:
|
||
size = width
|
||
ansi_img = "\n" + renderer.get_body(width=size,mode="inline")
|
||
except Exception as err:
|
||
#we sometimes encounter really bad formatted files or URL
|
||
ansi_img = textwrap.fill("[BAD IMG] %s - %s"%(err,src),width) + "\n"
|
||
return ansi_img
|
||
def sanitize_string(string):
|
||
#never start with a "\n"
|
||
#string = string.lstrip("\n")
|
||
string = string.replace("\r","").replace("\n", " ").replace("\t"," ")
|
||
endspace = string.endswith(" ") or string.endswith("\xa0")
|
||
startspace = string.startswith(" ") or string.startswith("\xa0")
|
||
toreturn = string.replace("\n", " ").replace("\t"," ").strip()
|
||
while " " in toreturn:
|
||
toreturn = toreturn.replace(" "," ")
|
||
toreturn = html.unescape(toreturn)
|
||
if endspace and not toreturn.endswith(" ") and not toreturn.endswith("\xa0"):
|
||
toreturn += " "
|
||
if startspace and not toreturn.startswith(" ") and not toreturn.startswith("\xa0"):
|
||
toreturn = " " + toreturn
|
||
return toreturn
|
||
def recursive_render(element,indent="",preformatted=False):
|
||
if element.name == "blockquote":
|
||
r.newparagraph()
|
||
r.startindent(" ",reverse=" ")
|
||
for child in element.children:
|
||
r.open_color("italic")
|
||
recursive_render(child,indent="\t")
|
||
r.close_color("italic")
|
||
r.endindent()
|
||
elif element.name in ["div","p"]:
|
||
r.newparagraph()
|
||
for child in element.children:
|
||
recursive_render(child,indent=indent)
|
||
r.newparagraph()
|
||
elif element.name in ["span"]:
|
||
r.add_space()
|
||
for child in element.children:
|
||
recursive_render(child,indent=indent)
|
||
r.add_space()
|
||
elif element.name in ["h1","h2","h3","h4","h5","h6"]:
|
||
r.open_color("blue")
|
||
if element.name in ["h1"]:
|
||
r.open_color("bold")
|
||
r.open_color("underline")
|
||
elif element.name in ["h2"]:
|
||
r.open_color("bold")
|
||
elif element.name in ["h5","h6"]:
|
||
r.open_color("faint")
|
||
for child in element.children:
|
||
r.newparagraph()
|
||
recursive_render(child)
|
||
r.newparagraph()
|
||
r.close_all()
|
||
elif element.name in ["code","tt"]:
|
||
for child in element.children:
|
||
recursive_render(child,indent=indent,preformatted=True)
|
||
elif element.name in ["pre"]:
|
||
r.newparagraph()
|
||
r.add_block(element.text)
|
||
r.newparagraph()
|
||
elif element.name in ["li"]:
|
||
r.startindent(" • ",sub=" ")
|
||
for child in element.children:
|
||
recursive_render(child,indent=indent)
|
||
r.endindent()
|
||
elif element.name in ["tr"]:
|
||
r.startindent("|",reverse="|")
|
||
for child in element.children:
|
||
recursive_render(child,indent=indent)
|
||
r.endindent()
|
||
elif element.name in ["td","th"]:
|
||
r.add_text("| ")
|
||
for child in element.children:
|
||
recursive_render(child)
|
||
r.add_text(" |")
|
||
# italics
|
||
elif element.name in ["em","i"]:
|
||
r.open_color("italic")
|
||
for child in element.children:
|
||
recursive_render(child,indent=indent,preformatted=preformatted)
|
||
r.close_color("italic")
|
||
#bold
|
||
elif element.name in ["b","strong"]:
|
||
r.open_color("bold")
|
||
for child in element.children:
|
||
recursive_render(child,indent=indent,preformatted=preformatted)
|
||
r.close_color("bold")
|
||
elif element.name == "a":
|
||
link = element.get('href')
|
||
# support for images nested in links
|
||
if link:
|
||
text = ""
|
||
imgtext = ""
|
||
#we display images first in a link
|
||
for child in element.children:
|
||
if child.name == "img":
|
||
recursive_render(child)
|
||
imgtext = "[IMG LINK %s]"
|
||
links.append(link+" "+text)
|
||
link_id = str(len(links))
|
||
r.open_color("blue")
|
||
r.open_color("faint")
|
||
for child in element.children:
|
||
if child.name != "img":
|
||
recursive_render(child,preformatted=preformatted)
|
||
if imgtext != "":
|
||
r.center_line()
|
||
r.add_text(imgtext%link_id)
|
||
else:
|
||
r.add_text(" [%s]"%link_id)
|
||
r.close_color("blue")
|
||
r.close_color("faint")
|
||
else:
|
||
#No real link found
|
||
for child in element.children:
|
||
recursive_render(child,preformatted=preformatted)
|
||
elif element.name == "img":
|
||
src = element.get("src")
|
||
text = ""
|
||
ansi_img = render_image(src,width=width,mode=mode)
|
||
alt = element.get("alt")
|
||
if alt:
|
||
alt = sanitize_string(alt)
|
||
text += "[IMG] %s"%alt
|
||
else:
|
||
text += "[IMG]"
|
||
if src:
|
||
links.append(src+" "+text)
|
||
if not mode in self.images:
|
||
self.images[mode] = []
|
||
abs_url = urllib.parse.urljoin(self.url, src)
|
||
self.images[mode].append(abs_url)
|
||
link_id = " [%s]"%(len(links))
|
||
r.add_block(ansi_img)
|
||
r.open_color("faint")
|
||
r.open_color("yellow")
|
||
r.center_line()
|
||
r.add_text(text + link_id)
|
||
r.close_color("faint")
|
||
r.close_color("yellow")
|
||
r.newline()
|
||
elif element.name == "br":
|
||
r.newline()
|
||
elif element.name not in ["script","style","template"] and type(element) != Comment:
|
||
if element.string:
|
||
if preformatted :
|
||
r.open_color("faint")
|
||
r.add_text(element.string)
|
||
r.close_color("faint")
|
||
else:
|
||
s = sanitize_string(element.string)
|
||
if len(s.strip()) > 0:
|
||
r.add_text(s)
|
||
else:
|
||
for child in element.children:
|
||
recursive_render(child,indent=indent)
|
||
# the real render_html hearth
|
||
if mode == "full":
|
||
summary = body
|
||
elif _HAS_READABILITY:
|
||
try:
|
||
readable = Document(body)
|
||
summary = readable.summary()
|
||
except Exception as err:
|
||
summary = body
|
||
else:
|
||
summary = body
|
||
soup = BeautifulSoup(summary, 'html.parser')
|
||
#soup = BeautifulSoup(summary, 'html5lib')
|
||
if soup :
|
||
if soup.body :
|
||
recursive_render(soup.body)
|
||
else:
|
||
recursive_render(soup)
|
||
return r.get_final(),links
|
||
|
||
|
||
# Mapping mimetypes with renderers
|
||
# (any content with a mimetype text/* not listed here will be rendered with as GemText)
|
||
_FORMAT_RENDERERS = {
|
||
"text/gemini": GemtextRenderer,
|
||
"text/html" : HtmlRenderer,
|
||
"text/xml" : FeedRenderer,
|
||
"application/xml" : FeedRenderer,
|
||
"application/rss+xml" : FeedRenderer,
|
||
"application/atom+xml" : FeedRenderer,
|
||
"text/gopher": GopherRenderer,
|
||
"image/*": ImageRenderer
|
||
}
|
||
def get_mime(path):
|
||
#Beware, this one is really a shaddy ad-hoc function
|
||
if path.startswith("mailto:"):
|
||
mime = "mailto"
|
||
elif os.path.isdir(path):
|
||
mime = "Local Folder"
|
||
elif path.endswith(".gmi"):
|
||
mime = "text/gemini"
|
||
elif shutil.which("file") :
|
||
mime = run("file -b --mime-type %s", parameter=path).strip()
|
||
mime2,encoding = mimetypes.guess_type(path,strict=False)
|
||
#If we hesitate between html and xml, takes the xml one
|
||
#because the FeedRendered fallback to HtmlRenderer
|
||
if mime2 and mime != mime2 and "html" in mime and "xml" in mime2:
|
||
mime = "text/xml"
|
||
# If it’s a xml file, consider it as such, regardless of what file thinks
|
||
elif path.endswith(".xml"):
|
||
mime = "text/xml"
|
||
#Some xml/html document are considered as octet-stream
|
||
if mime == "application/octet-stream":
|
||
mime = "text/xml"
|
||
else:
|
||
mime,encoding = mimetypes.guess_type(path,strict=False)
|
||
#gmi Mimetype is not recognized yet
|
||
if not mime and not shutil.which("file") :
|
||
print("Cannot guess the mime type of the file. Please install \"file\".")
|
||
print("(and send me an email, I’m curious of systems without \"file\" installed!")
|
||
if mime.startswith("text") and mime not in _FORMAT_RENDERERS:
|
||
if mime2 and mime2 in _FORMAT_RENDERERS:
|
||
mime = mime2
|
||
else:
|
||
#by default, we consider it’s gemini except for html
|
||
mime = "text/gemini"
|
||
return mime
|
||
|
||
def renderer_from_file(path,url=None):
|
||
mime = get_mime(path)
|
||
if not url:
|
||
url = path
|
||
if os.path.exists(path):
|
||
if mime.startswith("text/"):
|
||
with open(path) as f:
|
||
print("DEBUG: opening %s"%path)
|
||
content = f.read()
|
||
f.close()
|
||
else:
|
||
content = path
|
||
return set_renderer(content,url,mime)
|
||
else:
|
||
return None
|
||
|
||
def set_renderer(content,url,mime):
|
||
renderer = None
|
||
if mime == "Local Folder":
|
||
renderer = FolderRenderer("",url,datadir=_DATA_DIR)
|
||
return renderer
|
||
mime_to_use = []
|
||
for m in _FORMAT_RENDERERS:
|
||
if fnmatch.fnmatch(mime, m):
|
||
mime_to_use.append(m)
|
||
if len(mime_to_use) > 0:
|
||
current_mime = mime_to_use[0]
|
||
func = _FORMAT_RENDERERS[current_mime]
|
||
if current_mime.startswith("text"):
|
||
renderer = func(content,url)
|
||
# We double check if the renderer is correct.
|
||
# If not, we fallback to html
|
||
# (this is currently only for XHTML, often being
|
||
# mislabelled as xml thus RSS feeds)
|
||
if not renderer.is_valid():
|
||
func = _FORMAT_RENDERERS["text/html"]
|
||
#print("Set (fallback)RENDERER to html instead of %s"%mime)
|
||
renderer = func(content,url)
|
||
else:
|
||
#TODO: check this code and then remove one if.
|
||
#we don’t parse text, we give the file to the renderer
|
||
renderer = func(content,url)
|
||
if not renderer.is_valid():
|
||
renderer = None
|
||
return renderer
|
||
|
||
|
||
def render(input,path=None,format="auto",mime=None,url=None):
|
||
if format == "gemtext":
|
||
r = GemtextRenderer(input,url)
|
||
elif format == "html":
|
||
r = HtmlRenderer(input,url)
|
||
elif format == "feed":
|
||
r = FeedRenderer(input,url)
|
||
elif format == "gopher":
|
||
r = GopherRenderer(input,url)
|
||
elif format == "image":
|
||
r = ImageRenderer(input,url)
|
||
elif format == "folder":
|
||
r = FolderRenderer(input,url)
|
||
else:
|
||
if not mime and path:
|
||
r= renderer_from_file(path,url)
|
||
else:
|
||
r = set_renderer(input,url,mime)
|
||
print("DEBUG: renderer is %s"%r)
|
||
if r:
|
||
r.display()
|
||
else:
|
||
print("Could not render %s"%input)
|
||
|
||
|
||
def main():
|
||
parser = argparse.ArgumentParser(description=__doc__)
|
||
parser.add_argument("--format", choices=["auto","gemtext","html","feed","gopher","image","folder"],
|
||
help="Renderer to use. Available: auto, gemtext, html, feed, gopher, image, folder")
|
||
parser.add_argument("--mime", help="Mime of the content to parse")
|
||
## The argument needs to be a path to a file. If none, then stdin is used which allows
|
||
## to pipe text directly into ansirenderer
|
||
parser.add_argument("--url",metavar="URL", nargs="*",
|
||
help="Original URL of the content")
|
||
parser.add_argument("content",metavar="INPUT", nargs="*", type=argparse.FileType("r"),
|
||
default=sys.stdin, help="Path to the text to render (default to stdin)")
|
||
args = parser.parse_args()
|
||
# Detect if we are running interactively or in a pipe
|
||
if sys.stdin.isatty():
|
||
#we are interactive, not in stdin, we can have multiple files as input
|
||
for f in args.content:
|
||
path = os.path.abspath(f.name)
|
||
try:
|
||
content = f.read()
|
||
except UnicodeDecodeError:
|
||
content = f
|
||
render(content,path=path,format=args.format,url=args.url,mime=args.mime)
|
||
else:
|
||
#we are in stdin
|
||
if not args.format and not args.mime:
|
||
print("Format or mime should be specified when running with stdin")
|
||
else:
|
||
render(args.content.read(),path=None,format=args.format,url=args.url,mime=args.mime)
|
||
|
||
if __name__ == '__main__':
|
||
main()
|