The reference form of the image syntax had nowhere to go: Image only has a
url, so the parser was putting the label there and `![a][b]` came out
identical to ``, with nothing downstream aware the url still needed
resolving against a RefDef.
Adds a ReferenceImage constructor mirroring ReferenceLink and has the djot
parser emit it. As with reference links, an empty label falls back to the
alt text.
Note HTML.hs still renders neither reference form.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Fills out src/Djot.hs, which was a skeleton of `error "todo"` stubs.
Three layers, so container prefixes and indentation never have to be
threaded through the parser state:
- line primitives (rawLine/peekLine/lineWhen/dedent): block parsers peek
at the next line, decide whether they want it, then consume it
- container blocks strip their prefix off the lines they own and re-parse
the result with subParse, a rank-2 helper that runs a polymorphic parser
at Identity and shifts error offsets back into the outer input
- inline content is a second pass over the text a block collected
Blocks: headings, paragraphs, block quotes, fenced code, raw blocks, divs,
tables (alignments, `^` captions, escaped pipes), footnote and reference
definitions, block attributes, thematic breaks, and lists -- bullet,
ordered (decimal/alpha/roman, `.`/`)`/`(n)`), task, and definition. Tight
lists unwrap their paragraphs to Transparent.
Inlines: emphasis and its braced forms, verbatim, raw inline, math, links,
reference links, images, autolinks, spans, footnote references, symbols,
escapes, hard breaks, attribute sets, and smart punctuation.
Two spots where the IR came up short:
- there is no reference image, so for `![alt][ref]` the label lands in
the url field
- unordered lists get style = Nothing rather than the bullet character,
which HTML.hs would otherwise emit as an invalid type="-"
Also includes the psb.cabal fix dropping OverloadedRecordUpdate, without
which Psb.Main does not build.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
lists and task lists are a PITA to handle, I may need to handle them
myself in the future but that'll probably become clear via testing
rather than simply doing it as is because the parsing logic is annoying
This commit gets bundling to the point where it can be used now
TODO:
- Get ESBuild Stdout/stderr to not pop up in psb output
- figure out how to split off map files so I'm not shunting them into
script tags
Fixed three type errors preventing compilation:
- template_char: properly convert Tokens s to s for string literals and eol
- regex_literal: correctly apply fromString to parser result, not parser itself
- reg_first_char: use explicit list notation to resolve noneOf ambiguity
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
