Files
archify-vscode-ext/src/util/textDiff.ts
T
root-at-skic 27d4794ff8 0.9.2: Source view, schema checks without the YAML extension
Every Archify page can show its file's YAML in place. Diagrams get
Diagram | Graph | Source (Graph only inside a model), main.archify
Model | Graph | Source, registry and decision pages View | Source, and the
Graph page a Source segment. 2D | 3D moves left of that switch and hides
while Source shows.

The YAML opens in a CodeMirror editor inside the page (dist/source.js,
loaded on first use), themed with the page's colours. Edits go to the VS
Code document as WorkspaceEdits; outside changes come back to the page.
Undo and redo are the editor's own, since VS Code sends ⌘Z in a focused
webview to the webview; save and find stay VS Code's. Problems come from
the host only (what the Problems panel holds for the file) and are
counted on the Source segment; completion and hover come from the schema,
folded into one draft-07 document per diagram type.

The host now checks .archify files against the extension's schema with
ajv on the YAML as written, before archify validate, and checks
.archify-registry files against the registry schema for the first time.
Registry and decision pages become text editor providers. While Source
shows, new renders wait and appear when the picture comes back.

Show Source switches the page to Source; Open in Text Editor (the editor
title button) opens the text beside it, as Show Source did. The decision
schema is no longer given to the YAML extension. Fixed: YAML errors in
registry and decision files were reported on line 1; "Webview is
disposed" when a diagram closed mid-render; the model heading under the
toolbar in narrow editors.
2026-10-27 23:46:05 +02:00

65 lines
2.3 KiB
TypeScript

// Text helpers shared by the host and the Source view in the page. The page's
// editor always works in "\n" text; documents may use "\r\n".
export interface TextChange {
from: number;
to: number;
insert: string;
}
/** The text with "\r\n" turned into "\n". */
export function normalizeEol(text: string): string {
return text.replace(/\r\n/g, '\n');
}
/**
* The smallest single change that turns `before` into `after`: the common
* start and end are kept, so a cursor outside the change stays put.
*/
export function minimalChange(before: string, after: string): TextChange | undefined {
if (before === after) return undefined;
let start = 0;
const max = Math.min(before.length, after.length);
while (start < max && before.charCodeAt(start) === after.charCodeAt(start)) start++;
let endBefore = before.length;
let endAfter = after.length;
while (endBefore > start && endAfter > start && before.charCodeAt(endBefore - 1) === after.charCodeAt(endAfter - 1)) {
endBefore--;
endAfter--;
}
return { from: start, to: endBefore, insert: after.slice(start, endAfter) };
}
/** Line and character of an offset into "\n" text. */
export function positionOf(text: string, offset: number): { line: number; character: number } {
const clamped = Math.max(0, Math.min(offset, text.length));
let line = 0;
let lineStart = 0;
for (let i = text.indexOf('\n'); i !== -1 && i < clamped; i = text.indexOf('\n', i + 1)) {
line++;
lineStart = i + 1;
}
return { line, character: clamped - lineStart };
}
/** Offset into "\n" text of a line and character (clamped to the line). */
export function offsetOf(text: string, line: number, character: number): number {
let start = 0;
for (let l = 0; l < line; l++) {
const next = text.indexOf('\n', start);
if (next === -1) return text.length;
start = next + 1;
}
const end = text.indexOf('\n', start);
return Math.min(start + Math.max(0, character), end === -1 ? text.length : end);
}
/** Applies changes given in the coordinates of `text` (as one editor transaction reports them). */
export function applyChanges(text: string, changes: TextChange[]): string {
let out = text;
for (const change of [...changes].sort((a, b) => b.from - a.from)) {
out = out.slice(0, change.from) + change.insert + out.slice(change.to);
}
return out;
}