md2amb utilities

This repository contains command line helpers for transforming Markdown into formats that work well on retro hardware or constrained text viewers.

Tools

md2amb.py – converts Markdown into Amber-screen formatted text (see script for details).
md2txt.py – converts Markdown into 80-column, DOS-compatible plain text with extensive formatting support:
- FIGlet-rendered headings (H1–H3) driven by optional YAML frontmatter (h1_font, h2_font, h3_font).
- H4+ headings rendered in uppercase with dashed underlines.
- Emphasis styles converted to spaced or delimited characters, e.g. **bold** → B O L D, __strong__ → _s_t_r_o_n_g_, ~~strike~~ → ~s~t~r~i~k~e~.
- Blockquotes prefixed by | , lists preserved, inline code untouched.
- Code blocks numbered (01 | line), with both fenced and indented fences supported.
- Links transformed into [label](n) references, with footnote-style URL list at the end.
- Optional alignment and margin controls via HTML <p> attributes or MultiMarkdown attribute blocks (e.g. {:.center margin=20px}) applied as leading spaces.

Requirements

Python 3.9+.
Optional: PyHyphen (preferred) or pyphen for dictionary-driven hyphenation.
Optional: pyfiglet for FIGlet headings (pip install pyfiglet). When unavailable, headings fall back to the H4-style renderer automatically.

Usage

python md2txt.py input.md -o output.txt          # convert to DOS-friendly text
python md2txt.py input.md                         # write result to stdout
python md2txt.py input.md --width 72             # override column width

Both scripts accept --help for the full option list.

FIGlet Fonts via Frontmatter

You can set FIGlet fonts for H1–H3 per document using YAML frontmatter:

---
h1_font: slant
h2_font: standard
h3_font: small
margin_left: 4
margin_right: 4
paragraph_spacing: 1
hyphenate: true
hyphen_lang: en_US
---

# Main Title
## Section Heading
### Subsection

Font names also accept the special keywords caps (force uppercase) and title (title case) for any heading. margin_left and margin_right add leading/trailing spaces to body text, paragraph_spacing (or lines_between_paragraphs) inserts blank lines between paragraphs, and enabling hyphenate activates PyHyphen-based wrapping (optional hyphen_lang defaults to en_US).

If the rendered FIGlet text would exceed the configured width, the converter automatically falls back to the H4-style uppercase heading with a dashed underline.

Styling via Attribute Blocks

You can influence alignment and margins in the source Markdown using either HTML paragraphs or MultiMarkdown attribute blocks:

<p align="center" style="margin: 10px 20px;">
Centered paragraph with custom margins.
</p>

Paragraph styled via MMD attributes.
{: .right margin=12px }

## Centered Heading {: .center margin=8px }

Margins are interpreted as spaces; values using px are rounded to the nearest integer, and margin: 0 auto; centers content.

Output Line Endings

Generated text uses CRLF line endings to maintain DOS compatibility.

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