Small script to convert a markdown file into a tex file using some template and copying onto the clipboard.

md_to_latex.py

#!/usr/bin/env python3

import sys
import os
import re
import subprocess

# Function to display help information
def display_help():
    print("A script to build tex files for your papers")
    print("Usage: {} [OPTION]... INPUT".format(sys.argv[0]))
    print("Options:")
    print("  -h, --help     Display this help message")
    sys.exit(1)

def to_kebab_case(s : str):
    return s.lower().replace(' ', '-')

# Parse command line arguments
input1 = None
for arg in sys.argv[1:]:
    if arg in ("-h", "--help"):
        display_help()
    else:
        if input1 is None:
            input1 = arg
        else:
            print("Error: Too many arguments.")
            display_help()

if input1 is None:
    print("Error: Inputs are required.")
    display_help()

# Get script directory
script_dir = os.path.dirname(os.path.realpath(__file__))

# Read the input file and apply regex substitutions
with open(os.path.join(script_dir, input1), 'r') as f:
    content = f.read()

# Apply regex substitution for removing escaped brackets
# content = re.sub(r'\\\[(.*?)\\\]', r'\1', content)

# Find internal references and substitute with \ref command
# e.g. [[#Section]] -> ~\ref{section}, and use kebab case for the label
content = re.sub(r'\[\[#(.*?)\]\]', lambda x: '\\ \\ref{' + to_kebab_case(x.group(1)) + '}', content)

# Apply pandoc conversion with the specified template
proc = subprocess.Popen(['pandoc', '-f', 'markdown+wikilinks_title_after_pipe+hard_line_breaks', '-t', 'latex', '--template', os.path.join(script_dir, 'projects', 'Tesi', 'template.tex')], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
converted_content, _ = proc.communicate(input=content.encode())
converted_content = converted_content.decode()

# Apply regex substitution for URL citations
converted_content = re.sub(r'\\url{@([^}]*)}', r'\\cite{\1}', converted_content)

# Join multiple citations into one
# e.g. \cite{a}\cite{b} -> \cite{a,b}
# e.g. \cite{a}\cite{b}\cite{c} -> \cite{a,b,c}
while re.search(r'\\cite{([^}]*)}\\cite{([^}]*)}', converted_content):
    converted_content = re.sub(r'\\cite{([^}]*)}\\cite{([^}]*)}', r'\\cite{\1,\2}', converted_content)

# Add ~ before \cite to avoid line breaks
converted_content = re.sub(r'\s+\\cite{', r'~\\cite{', converted_content)

# Copy the converted content to clipboard
proc = subprocess.Popen(['xclip', '-sel', 'c'], stdin=subprocess.PIPE)
proc.communicate(input=converted_content.encode())

# print(converted_content)

This assumes you are using wikilinks linking style, for example [[link]]