From 5e52622b266cf353f039f274ed8db934148f8039 Mon Sep 17 00:00:00 2001
From: Darks <pc@gatin.cloud>
Date: Wed, 10 Feb 2021 22:18:02 +0100
Subject: [PATCH] First version of script Adds support for: - # H1 title - ##
 H2 title - ### H3 title - *emphasis text* - **strong text** -
 [link](https://domain.tld) - {{ tableofcontents }}

---
 md2bbc.py | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 sample.md | 17 +++++++++++
 2 files changed, 102 insertions(+)
 create mode 100755 md2bbc.py
 create mode 100644 sample.md

diff --git a/md2bbc.py b/md2bbc.py
new file mode 100755
index 0000000..b33c617
--- /dev/null
+++ b/md2bbc.py
@@ -0,0 +1,85 @@
+#!/usr/bin/env python3
+
+# Maintainer: Darks
+# Disclaimer: this script has been done as a quick n' dirty way to convert
+# markdown to Planète Casio's BBcode. As it, it does support only those
+# features:
+#  - # H1 title
+#  - ## H2 title
+#  - ### H3 title
+#  - *emphasis text*
+#  - **strong text**
+#  - [link](https://domain.tld)
+#  - {{ tableofcontents }}
+#
+# More features may be added in the future, but this script is provided as it.
+
+
+import argparse, re, sys
+
+
+# Manage arguments
+parser = argparse.ArgumentParser(
+    description="Convert Markdown to PC's BBcode")
+parser.add_argument("input", type=argparse.FileType('r'), help="input file")
+args = parser.parse_args()
+
+# Useful regex
+r_h1 = re.compile("^# (.+)$", re.I|re.M)
+r_h2 = re.compile("^## (.+)$", re.I|re.M)
+r_h3 = re.compile("^### (.+)$", re.I|re.M)
+r_link = re.compile("(\W)\[(.+?)\]\((.+?)\)(\W)", re.I|re.M)
+r_em = re.compile("(\s)\*(\w.+\w)\*(\s)", re.I|re.M)
+r_strong = re.compile("(\s)\*\*(\w.+\w)\*\*(\s)", re.I|re.M)
+
+# Open and extract document
+markdown = args.input.read().splitlines()
+
+# Manage titles
+table_of_contents = ""
+n_h1 = 0
+n_h2 = 0
+n_h3 = 0
+output = []
+
+# TODO: factorize this pile of shit
+for line in markdown:
+    if (res := r_h1.search(line)):
+        n_h1 += 1
+        n_h2 = 0
+        n_h3 = 0
+        header = res.group(1)
+        index = f"{n_h1}"
+        table_of_contents += f"[target={index}]{index} — {header}[/target]\n"
+        output.append(f"[big][brown][b]{index} — {header}[/b][/brown][/big]"
+            f"[label={index}]")
+    elif (res := r_h2.search(line)):
+        n_h2 += 1
+        n_h3 = 0
+        header = res.group(1)
+        index = f"{n_h1}.{n_h2}"
+        table_of_contents += f"[target={index}]{index} — {header}[/target]\n"
+        output.append(f"[brown][b]{index} — {header}[/b][/brown]"
+            f"[label={index}]")
+    elif (res := r_h3.search(line)):
+        n_h3 += 1
+        header = res.group(1)
+        index = f"{n_h1}.{n_h2}.{n_h3}"
+        table_of_contents += f"[target={index}]{index} — {header}[/target]\n"
+        output.append(f"[b]{index} — {header}[/b]"
+            f"[label={index}]")
+    else:
+        res = r_link.sub(
+            lambda m: f"{m.group(1)}[url={m.group(3)}]{m.group(2)}[/url]{m.group(4)}", line)
+        res = r_strong.sub(
+            lambda m: f"{m.group(1)}[b]{m.group(2)}[/b]{m.group(3)}", res)
+        res = r_em.sub(
+            lambda m: f"{m.group(1)}[i]{m.group(2)}[/i]{m.group(3)}", res)
+        output.append(res)
+
+# Add table of content
+output = '\n'.join(output)
+output = re.sub("{{ tableofcontents }}", table_of_contents, output)
+
+# Print output on stdout
+print(output)
diff --git a/sample.md b/sample.md
new file mode 100644
index 0000000..fa44905
--- /dev/null
+++ b/sample.md
@@ -0,0 +1,17 @@
+{{ tableofcontents }}
+
+# Heading 1
+
+## Heading 1.1
+
+Some text
+
+### Heading 1.1.1
+
+Another **strong text** with *emphasis* and [a link](https://domain.tld) and [another one](https://domain.tld).
+
+### Heading 1.1.2
+
+## Heading 1.2
+
+# Heading 2