7d3303251d
* add support for basic on doc change event * move change API core into plug-api/lib; add docs * add overlap utility * Maintain modal focus * Federated URL backend handling * Fix small typo in Query.md (#483) * Federation progress * Cleanup and federation prep * Robustness and federation sync * Federation: rewrite page references in federated content * Don't sync service worker and index.json to client on silverbullet.md * Federation listing timeouts * Switching onboarding over to federation links * Reduce amount of sync related log messages a bit * Attribute indexing and code completion * Shift-Enter in the page navigator now takes the input literally * Updated changelog * Completion for handlebar template variables * Make 'pos' a number in tasks * Updated install instructions to include edge builds * WIP: CLI running of plugs * Upgrade deno in Docker to 1.36.0 * Implement CLI store using Deno store * Rerun directives * Fixes #485 * 0.3.8 * 0.3.9 * Changelog * Instantly sync updated pages when ticking off a task in a directive * Sync current open page every 5s * Optimize requests * Make attribute extensible * Debugging sync getting stuck * Misaligning sync cycles (to avoid no-op cycles) * Fixes #500: New apply page template command * Changelog * More sync debugging statements * More sync debugging * Even more debug * Dial down excessive debug logging * Fixes #115: By introducing MQ workers * Use MQ for updating directives in entire space * Work on plug:run * touch up docs * Fix htmlLanguage dependency --------- Co-authored-by: Zef Hemel <zef@zef.me> Co-authored-by: johnl <johnlunney@users.noreply.github.com>
44 lines
1.1 KiB
TypeScript
44 lines
1.1 KiB
TypeScript
// API for working with changes to document text
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/** Denotes a region in the document, based on character indicices
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*/
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export type Range = {
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/** The starting index of the span, 0-based, inclusive
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*/
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from: number;
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/** The ending index of the span, 0-based, exclusive
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*/
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to: number;
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};
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/** A modification to the document */
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export type TextChange = {
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/** The new text */
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inserted: string;
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/** The modified range **before** this change took effect.
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*
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* Example: "aaabbbccc" => "aaaccc", oldRange is [3, 6)
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*/
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oldRange: Range;
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/** The modified range **after** this change took effect.
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*
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* Example: "aaabbbccc" => "aaaccc", newRange is [3, 3)
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*/
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newRange: Range;
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};
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/** Get this distance between the start and end of a range */
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export function rangeLength(range: Range): number {
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return range.to - range.from;
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}
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export function rangesOverlap(a: Range, b: Range): boolean {
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// `b.from >= a.to` => "b" starts after "a"
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// `a.from >= b.to` => "b" ends before "a"
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// if neither is true these two ranges must overlap
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return !(b.from >= a.to || a.from >= b.to);
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}
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