Package detail

@unified-latex/unified-latex-builder

siefkenj33.7kMIT1.8.3

Tools for constructing unified-latex ASTs

pegjs, latex, parser, prettier

readme

unified-latex-builder

What is this?

Functions to help build a unified-latex Abstract Syntax Tree (AST) with hyperscript-like syntax.

When should I use this?

If you want to programmatically create Ast.Node nodes.

Install

npm install @unified-latex/unified-latex-builder

This package contains both esm and commonjs exports. To explicitly access the esm export, import the .js file. To explicitly access the commonjs export, import the .cjs file.

Functions

arg(args, special)

Create an Argument. special.braces can optionally specify the signature of the open/close marks that each argument uses. For example

arg("a", { braces: "[]" });

will result in arguments [a]. Valid braces are *, [, {, <, and (.

null may be passed as the value of an empty optional argument. If null is passed, the openBrace and closeBrace of the argument will be set to empty strings and the contents will be set to an empty array. For example,

args([null, "b"], { braces: "[]{}" });

will produce the same structure as if the the first "optional argument" were omitted in regular parsing.

function arg(args: CoercibleArgument | Ast.Node[], special: ArgumentSpecialOptions): Ast.Argument

Parameters

Param Type
args Omitted
special ArgumentSpecialOptions

args(args, special)

Create an Argument list. special.braces can optionally specify the signature of the open/close marks that each argument uses. For example

args(["a", "b"], { braces: "[]{}" });

will result in arguments [a]{b}. Valid braces are *, [, {, (, and <.

null may be passed as the value of an empty optional argument. If null is passed, the openBrace and closeBrace of the argument will be set to empty strings and the contents will be set to an empty array. For example,

args([null, "b"], { braces: "[]{}" });

will produce the same structure as if the the first "optional argument" were omitted in regular parsing.

function args(args: CoercibleArgument | CoercibleArgument[], special: ArgumentsSpecialOptions): Ast.Argument[]

Parameters

Param Type
args Omitted
special ArgumentsSpecialOptions

env(name, body, envArgs, special)

Create an Environment node.

function env(name: String, body: CoercibleNode | CoercibleNode[], envArgs: CoercibleArgument | CoercibleArgument[], special: {}): Ast.Environment

Parameters

Param Type
name String
body Omitted
envArgs Omitted
special {}

m(name, marcoArgs, special)

Create a Macro with the given name. The macro may be followed by any number of arguments.

function m(name: String, marcoArgs: CoercibleArgument | CoercibleArgument[], special: MacroSpecialOptions): Ast.Macro

Parameters

Param Type
name String
marcoArgs Omitted
special MacroSpecialOptions

s(value)

Create a String node from value

function s(value: string | Ast.String): Ast.String

Parameters

Param Type
value `string \ Ast.String`

Constants

Name Type Description
SP Ast.Whitespace Whitespace node.

changelog

unified-latex Changelog

v1.8.3

  • Support \ref in PreTeXt conversion
  • Better use of UnifiedJS to parse but not print LaTeX
  • Support for \verb, \textsuperscript, \textsubscript, \sout, and \" i in HTML conversion

v1.8.2

  • Upgraded dependencies

v1.8.1

  • Changed Peggy to implement a caching parser to prevent large slowdown on some files.

v1.8.0

  • Added initial PreTeXt conversion support
  • Upgraded deps
  • Added amsart macros
  • Consume the whitespace after special character macros when expanding ligatures. For example \o y produces øy instead of ø y
  • Fix signatures of \hyphenation

v1.7.1

  • Types fix for @unified-latex/unified-latex-types
  • Fixed AST when expanding \sysdelim macros for rendering \systeme{} macros with KaTeX

v1.7.0

  • Switch build system to vite. Should result in smaller bundles.
  • Save default arguments when parsing if the macro signature specifies them e.g. {signature: "O{foo}"}. The defaults are substituted in when expanding the macros with the optional arguments omitted.
  • Preserve position information when comments are modified. (Sometimes, during a parse, but never during a parseMinimal, comments are modified to remove leading whitespace. Previously, modified comments would have their position information deleted. Position information is now preserved.)

v1.6.1

  • Pass VisitInfo as an additional argument ot macroReplacers and environmentReplacers in unifiedLatexToHast.
  • Allow skipping of HTML validation in unifiedLatexToHast.
  • The minted environment parses its contents as a verbatim.

v1.6.0

  • Embellishment tokens are now supported in macro signatures. E.g., a xxx: {signature: "e{^_}"} will allow \xxx_{foo}^{bar} and \xxx^{foo}_{bar} to parse correctly.
  • Stop tokens can now be regular string characters. For example xxx: {signature: "ua"} will allow \xxx YYYaBBB to consume YYY leaving BBB unconsumed.
  • Break after \\ macro when pretty printing (Issue #59)
  • [DEVELOPMENT] Added tsconfig.json files to each test/ folder for more granular control of the typescript settings.

v1.5.0

  • HTML conversion: vspace and hspace now give the amount in a data-amount attribute.
  • HTML conversion: unknown macros now have their arguments wrapped in spans instead of appearing as formatted LaTeX code.
  • Add basic Markdown conversion support.

v1.4.2

  • Avoid slowdown when paring incomplete environments (e.g. \newcommand{\x}{\begin{x}}). This is accomplished by enabling caching in PEGjs.
  • Added " ligature and \paragraph and \subparagraph to HTML conversion.

v1.4.1

  • Many more ligatures added to the HTML converter.
  • Fixed issue #40 where the optional argument to \\ was being parsed even if preceded by a space. (E.g., \\[10pt] and \\ [10pt]) were parsed the same. Not allowing the space should more closely match expected behavior.
  • Bump Prettier to v2.8.8

v1.4.0

  • Better CJS support (now unified is compiled in rather than left as an external dependency. This is needed because unified is ESM-only).
  • minted and listings environments now accept optional arguments and parse their contents verbatim. This makes them much more efficient.

v1.3.0

  • Initial support for parsing and pretty-printing of tikz environments.
  • Added support for xparse u-type arguments.
  • Can now pass an argumentParser attribute for custom argument parsing (instead of relying on an xparse signature)