74 lines
3.2 KiB
Markdown
74 lines
3.2 KiB
Markdown
# md2amb utilities
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This repository contains command line helpers for transforming Markdown into formats that work well on retro hardware or constrained text viewers.
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## Tools
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- `md2amb.py` – converts Markdown into Amber-screen formatted text (see script for details).
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- `md2txt.py` – converts Markdown into 80-column, DOS-compatible plain text with extensive formatting support:
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- FIGlet-rendered headings (H1–H3) driven by optional YAML frontmatter (`h1_font`, `h2_font`, `h3_font`).
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- H4+ headings rendered in uppercase with dashed underlines.
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- 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~`.
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- Blockquotes prefixed by `| `, lists preserved, inline code untouched.
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- Code blocks numbered (`01 | line`), with both fenced and indented fences supported.
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- Links transformed into `[label](n)` references, with footnote-style URL list at the end.
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- Optional alignment and margin controls via HTML `<p>` attributes or MultiMarkdown attribute blocks (e.g. `{:.center margin=20px}`) applied as leading spaces.
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## Requirements
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- Python 3.9+.
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- Optional: `PyHyphen` (preferred) or `pyphen` for dictionary-driven hyphenation.
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- Optional: `pyfiglet` for FIGlet headings (`pip install pyfiglet`). When unavailable, headings fall back to the H4-style renderer automatically.
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## Usage
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```bash
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python md2txt.py input.md -o output.txt # convert to DOS-friendly text
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python md2txt.py input.md # write result to stdout
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python md2txt.py input.md --width 72 # override column width
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```
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Both scripts accept `--help` for the full option list.
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## FIGlet Fonts via Frontmatter
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You can set FIGlet fonts for H1–H3 per document using YAML frontmatter:
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```markdown
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---
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h1_font: slant
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h2_font: standard
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h3_font: small
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margin_left: 4
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margin_right: 4
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hyphenate: true
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hyphen_lang: en_US
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---
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# Main Title
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## Section Heading
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### Subsection
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```
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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, enabling `hyphenate` activates PyHyphen-based wrapping (optional `hyphen_lang` defaults to `en_US`), and `header_spacing` controls how many blank lines precede headings (default `2`). Set `figlet_fallback: true` to force an H4-style fallback when a FIGlet banner would overflow; when omitted (the default), the banner is kept even if it extends beyond the width.
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## Styling via Attribute Blocks
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You can influence alignment and margins in the source Markdown using either HTML paragraphs or MultiMarkdown attribute blocks:
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```markdown
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<p align="center" style="margin: 10px 20px;">
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Centered paragraph with custom margins.
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</p>
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Paragraph styled via MMD attributes.
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{: .right margin=12px }
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## Centered Heading {: .center margin=8px }
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```
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Margins are interpreted as spaces; values using `px` are rounded to the nearest integer, and `margin: 0 auto;` centers content.
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## Output Line Endings
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Generated text uses CRLF line endings to maintain DOS compatibility.
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