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render.py
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import pygments
from pygments import highlight
from pygments.lexers import get_lexer_by_name
from pygments.formatters import TerminalFormatter
import re
def process_markdown(markdown: str, screen_w: int):
md_lst = (markdown+"\n").split("\n")
result = ""
code_str = ""
code_mode = 0
code_leftsp = 0
link_lst = []
for line in md_lst:
endline_str = ""
l = line.strip(" ")
b_level = len(line)-len(line.lstrip(" "))
# s_level = b_level//2
if (code_mode == 1 and not l.startswith("```")):
code_str += line[min(code_leftsp, len(line)):]+"\n"
continue
if (result == "" or result[-1] == "\n"):
result += " "*b_level
l = re.sub(r'\s+', ' ', l)
if (l.startswith("#")):
ln_flag = True
result += "\033[90m"
for i in l:
if (ln_flag):
if (i == "#"):
result += "#"
else:
result += "\033[0m \033[34m\033[1m"
ln_flag = False
if (i != " "):
result += i
else:
result += i
result += "\033[0m\n"
elif (l == ""):
result = result.rstrip("\n")
result += "\033[0m\n\n"
elif (l.startswith("```")):
if (code_mode == 0):
result = result.rstrip("\n")
result += "\033[0m\n"
code_mode = 1
code_lang = l[3:].strip(" ")
code_leftsp = b_level
else:
code_mode = 0
try:
code_str = highlight(code_str,
get_lexer_by_name(code_lang), TerminalFormatter())
except pygments.util.ClassNotFound:
pass
result = result.rstrip(" ")
for i in code_str.split("\n"):
result += "\033[0m"+" "*(code_leftsp)+i+"\n"
code_str = ""
elif (l.startswith("---")):
result += "\033[90m"+"-"*screen_w+"\033[0m"
continue
else:
if (l.startswith(">")):
result += "\033[32m\033[2m"+"||\033[0m"
l = l.lstrip(">")
elif (l.startswith("* ")):
result += "\033[34m\033[2m"+"* \033[0m"
l = l.lstrip("* ")
endline_str = "\n"
elif (l.startswith("- ")):
result += "\033[34m\033[2m"+"* \033[0m"
l = l.lstrip("- ")
endline_str = "\n"
elif (l.startswith("+ ")):
result += "\033[34m\033[2m"+"* \033[0m"
l = l.lstrip("+ ")
endline_str = "\n"
elif (bool(re.match(r'^\d\.', l))):
num_t = l.split(".")[0]
result += "\033[34m\033[2m"+" " * \
(2-len(num_t))+num_t+". \033[0m"
l = l[3:].rstrip(" ")
endline_str = "\n"
if (l.startswith("|") and l.endswith("|")):
endline_str = "\n"
star_cnt = 0
bold_mode = 0
italic_mode = 0
ignore_mode = 0
inlinecode_mode = 0
img_mode = 0
link_str = ""
link_mode = 0
quote_mode = 0
quote_str = ""
for i in l:
if (i == "\\"):
ignore_mode = 1
continue
elif (ignore_mode == 1):
result += i
ignore_mode = 0
else:
ignore_mode = 0
if (i == "`"):
inlinecode_mode = 1-inlinecode_mode
if (inlinecode_mode):
result += "\033[33m\033[2m[\033[0m\033[33m\033[1m"
else:
result += "\033[0m\033[33m\033[2m]\033[0m"
if (bold_mode):
result += "\033[1m"
else:
result += "\033[22m"
if (italic_mode):
result += "\033[3m"
else:
result += "\033[23m"
continue
if (inlinecode_mode):
result += i
continue
if (img_mode > 0):
if (img_mode == 1 and i != "["):
img_mode = 0
result += "!"
continue
elif (img_mode == 1 and i == "["):
img_mode = 2
continue
elif (img_mode == 2 and i == "("):
img_mode = 3
link_str = ""
continue
elif (img_mode == 3 and i == ")"):
img_mode = 0
result = result.rstrip("\n")
result += '\n\033[47m \033[0m\n'\
f'\033[30;47m IMG[{len(link_lst)+1}] \033[0m\n'\
'\033[47m \033[0m\n'
link_lst.append({
"type": "img", "link": link_str})
continue
elif (img_mode == 2):
continue
elif (img_mode == 3):
link_str += i
continue
elif (i == "!"):
img_mode = 1
continue
if (i == "@"):
quote_mode = 1
quote_str = ""
continue
if (quote_mode > 0):
if (quote_mode == 1 and i == "["):
quote_mode = 2
result += "\033[34m\033[2m[\033[0m\033[34m^ \033[4m"
continue
elif (quote_mode == 1):
result += "@"
result += i
quote_mode = 0
continue
elif (quote_mode == 2 and i == "]"):
quote_mode = 3
result += f"\033[0m\033[34m\033[2m]\033[0m\033[34m[{len(link_lst)+1}]\033[0m"
if (bold_mode):
result += "\033[1m"
else:
result += "\033[22m"
if (italic_mode):
result += "\033[3m"
else:
result += "\033[23m"
continue
elif (quote_mode == 2):
result += i
continue
elif (quote_mode == 3 and i == "("):
quote_mode = 4
quote_str = ""
continue
elif (quote_mode == 4 and i == ")"):
quote_mode = 0
link_lst.append({
"type": "quote", "link": quote_str
})
continue
elif (quote_mode == 4):
quote_str += i
continue
if (i == "["):
link_mode = 1
link_str = ""
result += "\033[34m\033[4m"
continue
if (link_mode > 0):
if (link_mode == 1 and i == "]"):
link_mode = 2
result += f"[{len(link_lst)+1}]\033[0m"
if (bold_mode):
result += "\033[1m"
else:
result += "\033[22m"
if (italic_mode):
result += "\033[3m"
else:
result += "\033[23m"
continue
elif (link_mode == 2 and i == "("):
link_mode = 3
link_str = ""
continue
elif (link_mode == 3 and i == ")"):
link_mode = 0
link_lst.append({
"type": "link", "link": link_str
})
continue
elif (link_mode == 1):
result += i
continue
elif (link_mode == 3):
link_str += i
continue
if (i == "*"):
star_cnt += 1
continue
elif (i == "_"):
star_cnt += 1
continue
else:
if (star_cnt == 3):
bold_mode = 1-bold_mode
italic_mode = 1-italic_mode
star_cnt = 0
if (bold_mode):
result += "\033[1m"
else:
result += "\033[22m"
if (italic_mode):
result += "\033[3m"
else:
result += "\033[23m"
elif (star_cnt == 2):
bold_mode = 1-bold_mode
star_cnt = 0
if (bold_mode):
result += "\033[1m"
else:
result += "\033[22m"
if (italic_mode):
result += "\033[3m"
else:
result += "\033[23m"
elif (star_cnt == 1):
italic_mode = 1-italic_mode
star_cnt = 0
if (bold_mode):
result += "\033[1m"
else:
result += "\033[22m"
if (italic_mode):
result += "\033[3m"
else:
result += "\033[23m"
result += i
result += endline_str
result = result.rstrip().replace("\033[0m\033[0m", "\033[0m")
return result, link_lst