1 files changed, 88 insertions, 0 deletions
diff --git a/tools/dc_md/simples.py b/tools/dc_md/simples.py
new file mode 100644
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+++ b/tools/dc_md/simples.py
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+
+# literaly the example at https://python-markdown.github.io/extensions/api/#inlineprocessors
+# but modified to use ~~text~~ instead of --text--
+
+from markdown.inlinepatterns import InlineProcessor
+from markdown.blockprocessors import BlockProcessor
+from markdown import util
+from markdown.extensions import Extension
+import xml.etree.ElementTree as etree
+import re
+
+
+class DelInlineProcessor(InlineProcessor):
+    def handleMatch(self, m, data):
+        el = etree.Element('del')
+        el.text = m.group(1)
+        return el, m.start(0), m.end(0)
+
+class DelExtension(Extension):
+    def extendMarkdown(self, md):
+        DEL_PATTERN = r'~~(.*?)~~'  # like ~~del~~
+        md.inlinePatterns.register(DelInlineProcessor(DEL_PATTERN, md), 'del', 175)
+
+
+# once again, but this time for __underlined__
+# works a bit weird with italic-underlined like ___this___. use __*this*__ instead.
+
+class UInlineProcessor(InlineProcessor):
+    def handleMatch(self, m, data):
+        el = etree.Element('u')
+        el.text = m.group(1)
+        return el, m.start(0), m.end(0)
+
+class UExtension(Extension):
+    def extendMarkdown(self, md):
+        U_PATTERN = r'__(.*?)__'  # like __underline__
+        md.inlinePatterns.register(UInlineProcessor(U_PATTERN, md), 'u', 175)
+
+
+# for small text
+# taken from https://github.com/Python-Markdown/markdown/blob/6347c57c8f309dcb0aaaa67b60d0f0039ff44484/markdown/blockprocessors.py#L284
+# and modified to use `-# ` instead of `> `
+class SmallTextProcessor(BlockProcessor):
+    """ Process small text. """
+
+    RE = re.compile(r'(^|\n)[ ]{0,3}-\#[ ]?(.*)')
+
+    def test(self, parent: etree.Element, block: str) -> bool:
+        return bool(self.RE.search(block)) and not util.nearing_recursion_limit()
+
+    def run(self, parent: etree.Element, blocks: list[str]) -> None:
+        block = blocks.pop(0)
+        m = self.RE.search(block)
+        if m:
+            before = block[:m.start()]  # Lines before small
+            # Pass lines before small in recursively for parsing first.
+            self.parser.parseBlocks(parent, [before])
+            # Remove `-# ` from beginning of each line.
+            block = '\n'.join(
+                [self.clean(line) for line in block[m.start():].split('\n')]
+            )
+        sibling = self.lastChild(parent)
+        if sibling is not None and sibling.tag == "small":
+            # Previous block was a small so set that as this blocks parent
+            quote = sibling
+        else:
+            # This is a new small. Create a new parent element.
+            quote = etree.SubElement(parent, 'small')
+        # Recursively parse block with small as parent.
+        # change parser state so smalls embedded in lists use `p` tags
+        self.parser.state.set('small')
+        self.parser.parseChunk(quote, block)
+        self.parser.state.reset()
+
+    def clean(self, line: str) -> str:
+        """ Remove `-#` from beginning of a line. """
+        m = self.RE.match(line)
+        if line.strip() == "-#":
+            return ""
+        elif m:
+            return m.group(2)
+        else:
+            return line
+
+
+class SmallExtension(Extension):
+   def extendMarkdown(self, md):
+       md.parser.blockprocessors.register(SmallTextProcessor(md.parser), 'small', 175)