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codemirror-lang-inform7 - npm

This package implements Inform 7 syntax highlighting for the CodeMirror 6 code editor.

Inform 7 extensions are not fully supported. (They are mostly fine, only extension-specific parts such as the documentation are not highlighted.)

Inform 6 inclusions have basic highlighting, and Preform inclusions are not supported at all.

import { EditorState, EditorView, basicSetup } from "@codemirror/basic-setup"

import { inform7 } from "codemirror-lang-inform7"

const editor = new EditorView({
	state: EditorState.create({
		extensions: [
			basicSetup,
			EditorView.lineWrapping,
			inform7(),
		],
	}),
	parent: document.body,
})

The highlighter uses the following tags in Inform 7:

• blockComment for comments
• bracket for (- and -) surrounding I6 inclusions
• definitionKeyword for table names (might change in the future)
• escape for text substitutions (might change in the future)
• heading1 for the story title (e.g. "My awesome IF" by Natrium729)
• heading2 for Volume headings
• heading3 for Book headings
• heading4 for Part headings
• heading5 for Chapter headings
• heading6 for Section headings
• invalid for unpaired brackets in I7 texts and substitutions
• string for texts

Inside I6 inclusions, the following are used:

• atom for dictionary words
• bool for true and false
• controlKeywords for keywords (e.g. if, but those that are not really for control, like new_line, might be attributed another tag in the future)
• escape for escape sequences in strings (e.g. ~ or @:e)
• float for floats (e.g. $+9.3e-2)
• integer for numbers, binary numbers (e.g. $$10), hex number (e.g. $E9) and characters (e.g. 'n')
• lineComment for comments
• null for nothing
• operatorKeyword for e.g. has or ofclass
• processingInstruction for directives (might change in the future)
• self for self
• string for strings

The syntax highlighting is implemented with a stream parser in src/index.ts.

To build, use:

$ npm run prepare

To test the highlighting in a CodeMirror editor, use:

$ npm run build-preview

Then you can open the file preview/index.html in your favourite browser and type some Inform 7 code.

MIT. See the file LICENSE at the root of the repository.

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