b83e24e2f7
md2txt is a suite of minimal text-based markup exporters, and every other
renderer in it (text, micron, ama, gemini, nex) is a straight transform of
a document into a flat text format. The WML renderer is neither: it emits
an XML tree, and it restructures the document rather than transforming it
-- splitting one file into many <card>s, inventing navigation between
them, building a menu card that exists in no source document, and
paginating on a byte budget. That is why it needed levers no sibling
renderer needed, and why it alone forced a CARD_BREAK block kind and a
{.card} directive into the shared parser that every other renderer
ignores.
wapdown is that renderer given a repository of its own, where
restructuring a document into a navigable deck is the point.
Ported: the Markdown parser, block event models, and pipeline core, each
trimmed to what a deck compiler actually uses (no FIGlet, no hyphenation,
no ASCII-art includes, no text-layout frontmatter), plus the eight inline
regexes the renderer had been borrowing from a 1039-line text renderer.
The plugin registry comes along so other WAP-era targets can register
alongside wml later. Zero runtime dependencies.
Config is now first-class: every lever is an argparse flag with
validation and a frontmatter equivalent, layered CLI > frontmatter >
default, replacing the generic --renderer-option KEY=VALUE passthrough.
Five defects found while reading the code, each with a regression test:
- Link and image URLs were shredded by the emphasis patterns, which ran
before LINK_RE: a path like /v1_2_3/ became /v1<i>2</i>3/ inside the
href. Links and images are now resolved and stashed first.
- <table> was emitted as a direct child of <card>. The WML 1.3 content
model is (onevent*, timer?, (do | p | pre)*), so it must sit in a <p>.
- Link labels carried emphasis, but <a> is declared (#PCDATA | br | img)*
-- there is nowhere valid for a <b> inside one. Markers are now stripped.
- The menu card was built directly and never byte-packed, so the one card
most likely to be large was the one card exempt from the budget.
- Output was written with CRLF line endings. WML is XML served over HTTP.
New, WAP-idiomatic rather than Markdown-idiomatic:
- deck-level <template> hoisting nav that would otherwise repeat per card
- <select> menus, picked with a keypad digit instead of scrolled to
- --deck-per-card, one file per section cross-linked by filename, which
is the real answer to per-deck cache limits
- <head> metadata: Cache-Control max-age and <access>
- a Home options softkey, which <prev/> alone cannot provide
- an image policy (keep/alt/drop) for the WBMP-only reality of WAP 1.x
browsers -- no conversion is performed
186 tests, where neither repo had any. Golden files pin whole-document
output; every deck is validated against the real WML 1.3 DTD, vendored at
tests/dtd/wml13.dtd. Rendering examples/trail.md still matches md2txt's
committed output byte for byte, modulo the CRLF fix.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
38 lines
1.3 KiB
XML
38 lines
1.3 KiB
XML
<?xml version="1.0"?>
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<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.3//EN" "http://www.wapforum.org/DTD/wml13.dtd">
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<wml>
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<template>
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<do type="prev" label="Back"><prev/></do>
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</template>
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<card id="menu">
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<do type="prev"><noop/></do>
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<do type="accept" label="More"><go href="#menu-p2"/></do>
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<p>Live updates for the ridge trail network. Reception is spotty past the tree line, check before you go.</p>
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</card>
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<card id="menu-p2">
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<do type="prev" label="Prev"><prev/></do>
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<do type="accept" label="More"><go href="#menu-p3"/></do>
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<p><a href="#card1">Weather</a></p>
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<p><a href="#card2">Trail Status</a></p>
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</card>
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<card id="menu-p3">
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<do type="prev" label="Prev"><prev/></do>
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<p><a href="#card3">Contact</a></p>
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</card>
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<card id="card1" title="Weather">
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<p>Cold and clear. Wind: <b>15 mph</b> gusting from the <i>northwest</i>. Permit fee: $$5.</p>
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</card>
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<card id="card2" title="Trail Status">
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<p>- North Loop: open</p>
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<p>- South Loop: closed</p>
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<p>- Summit Spur: open, ice above 2000m</p>
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</card>
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<card id="card3" title="Contact">
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<do type="accept" label="More"><go href="#card3-p2"/></do>
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<p>Ranger station: <a href="tel:+15555550123">call dispatch</a></p>
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</card>
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<card id="card3-p2">
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<do type="prev" label="Prev"><prev/></do>
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<p><img src="https://example.com/map.png" alt="Trail map"/></p>
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</card>
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</wml>
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