mirror of
https://github.com/Stirling-Tools/Stirling-PDF.git
synced 2025-04-19 19:21:18 +00:00
Migrating shared-operations to TS (WIP)
This commit is contained in:
Saud Fatayerji
parent
0a43660e55
commit
0f35c77074
53
client-ionic/declarations/shared-operations.d.ts
vendored
53
client-ionic/declarations/shared-operations.d.ts
vendored
@ -1,53 +0,0 @@
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declare module '@stirling-pdf/shared-operations/functions/editMetadata' {
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export type Metadata = {
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Title: string | null | undefined; // The title of the document.
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Author: string | null | undefined; // The author of the document.
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Subject: string | null | undefined; // The subject of the document.
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Keywords: string[] | null | undefined; // An array of keywords associated with the document.
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Producer: string | null | undefined; // The producer of the document.
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Creator: string | null | undefined; // The creator of the document.
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CreationDate: Date | null | undefined; // The date when the document was created.
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ModificationDate: Date | null | undefined; // The date when the document was last modified.
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}
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export async function editMetadata(snapshot: string | Uint8Array | ArrayBuffer, metadata: Metadata): Promise<Uint8Array>;
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}
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declare module '@stirling-pdf/shared-operations/functions/extractPages' {
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export async function extractPages(snapshot: string | Uint8Array | ArrayBuffer, pagesToExtractArray: number[]): Promise<Uint8Array>;
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export async function createSubDocument(pdfDoc: typeof import("pdf-lib").PDFDocument, pagesToExtractArray: number[])
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}
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declare module '@stirling-pdf/shared-operations/functions/mergePDFs' {
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export async function mergePDFs(snapshots: (string | Uint8Array | ArrayBuffer)[]): Promise<Uint8Array>;
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}
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declare module '@stirling-pdf/shared-operations/functions/organizePages' {
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export async function organizePages(
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snapshot: string | Uint8Array | ArrayBuffer,
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operation: "CUSTOM_PAGE_ORDER" |
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"REVERSE_ORDER" |
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"DUPLEX_SORT" |
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"BOOKLET_SORT" |
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"ODD_EVEN_SPLIT" |
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"REMOVE_FIRST" |
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"REMOVE_LAST" |
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"REMOVE_FIRST_AND_LAST",
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customOrderString: string): Promise<Uint8Array>;
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}
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declare module '@stirling-pdf/shared-operations/functions/rotatePages' {
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export async function rotatePages(snapshot: string | Uint8Array | ArrayBuffer, rotation: number): Promise<Uint8Array>;
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}
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declare module '@stirling-pdf/shared-operations/functions/scaleContent' {
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export async function scaleContent(snapshot: string | Uint8Array | ArrayBuffer, scaleFactor: number): Promise<Uint8Array>;
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}
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declare module '@stirling-pdf/shared-operations/functions/scalePage' {
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export async function scalePage(snapshot: string | Uint8Array | ArrayBuffer, pageSize: {width:number,height:number}): Promise<Uint8Array>;
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}
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declare module '@stirling-pdf/shared-operations/functions/splitPDF' {
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export async function splitPDF(snapshot: string | Uint8Array | ArrayBuffer, splitAfterPageArray: number[]): Promise<Uint8Array>;
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}
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470
package-lock.json
generated
470
package-lock.json
generated
@ -3866,6 +3866,14 @@
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"resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
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},
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"node_modules/@swiftcarrot/color-fns": {
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"version": "3.2.0",
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"resolved": "https://registry.npmjs.org/@swiftcarrot/color-fns/-/color-fns-3.2.0.tgz",
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"integrity": "sha512-6SCpc4LwmGGqWHpBY9WaBzJwPF4nfgvFfejOX7Ub0kTehJysFkLUAvGID8zEx39n0pGlfr9pTiQE/7/buC7X5w==",
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"dependencies": {
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"@babel/runtime": "^7.10.3"
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}
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},
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"node_modules/@tauri-apps/api": {
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"version": "1.5.1",
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"resolved": "https://registry.npmjs.org/@tauri-apps/api/-/api-1.5.1.tgz",
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@ -4146,6 +4154,11 @@
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"undici-types": "~5.26.4"
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}
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},
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"node_modules/@types/pako": {
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"version": "2.0.3",
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"resolved": "https://registry.npmjs.org/@types/pako/-/pako-2.0.3.tgz",
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},
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"node_modules/@types/prop-types": {
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"version": "15.7.9",
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"resolved": "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.7.9.tgz",
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@ -5098,8 +5111,7 @@
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"node_modules/blob-util": {
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"version": "2.0.2",
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"resolved": "https://registry.npmjs.org/blob-util/-/blob-util-2.0.2.tgz",
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"integrity": "sha512-T7JQa+zsXXEa6/8ZhHcQEW1UFfVM49Ts65uBkFL6fz2QmrElqmbajIDJvuA0tEhRe5eIjpV9ZF+0RfZR9voJFQ==",
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"dev": true
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"integrity": "sha512-T7JQa+zsXXEa6/8ZhHcQEW1UFfVM49Ts65uBkFL6fz2QmrElqmbajIDJvuA0tEhRe5eIjpV9ZF+0RfZR9voJFQ=="
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},
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"node_modules/bluebird": {
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"version": "3.7.2",
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@ -5339,6 +5351,11 @@
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}
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]
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},
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"node_modules/canny-edge-detector": {
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"version": "1.0.0",
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"resolved": "https://registry.npmjs.org/canny-edge-detector/-/canny-edge-detector-1.0.0.tgz",
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"integrity": "sha512-SpewmkHDE1PbJ1/AVAcpvZKOufYpUXT0euMvhb5C4Q83Q9XEOmSXC+yR7jl3F4Ae1Ev6OtQKbFgdcPrOdHjzQg=="
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},
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"node_modules/canvas": {
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"version": "2.11.2",
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"resolved": "https://registry.npmjs.org/canvas/-/canvas-2.11.2.tgz",
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@ -6997,6 +7014,14 @@
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"node >=0.6.0"
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]
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},
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"node_modules/fast-bmp": {
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"version": "2.0.1",
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"resolved": "https://registry.npmjs.org/fast-bmp/-/fast-bmp-2.0.1.tgz",
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"integrity": "sha512-MOSG2rHYJCjIfL3/Llseuj39yl5U3d3XLtWFLFm5ZSTublGEXyvNcwi4Npyv6nzDPRSbAP53rvVRUswgftWCcQ==",
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"dependencies": {
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"iobuffer": "^5.1.0"
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}
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},
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"node_modules/fast-deep-equal": {
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"version": "3.1.3",
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"resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
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@ -7041,6 +7066,28 @@
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"node": ">= 6"
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}
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},
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"node_modules/fast-jpeg": {
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"version": "1.0.1",
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"resolved": "https://registry.npmjs.org/fast-jpeg/-/fast-jpeg-1.0.1.tgz",
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"integrity": "sha512-nyoYDzmdxgLOBfEhJGwYRsRLqGKziG/wic0SMct17dTVHkseTPvNwHCfihE47tcpGA1cTJO2MNsYYHezmkuA6w==",
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"dependencies": {
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"iobuffer": "^2.1.0",
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"tiff": "^2.0.0"
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}
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},
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"node_modules/fast-jpeg/node_modules/iobuffer": {
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"version": "2.1.0",
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"resolved": "https://registry.npmjs.org/iobuffer/-/iobuffer-2.1.0.tgz",
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"integrity": "sha512-0XZfU0STJ6NVHBZdMRPjF7jtkDEC5f4AxM/n5DSZOu11SQ+7tAl1csuEnEPoSPYWdaGZ/HOfn5Q837IEHddL2w=="
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},
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"node_modules/fast-jpeg/node_modules/tiff": {
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"version": "2.1.0",
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"resolved": "https://registry.npmjs.org/tiff/-/tiff-2.1.0.tgz",
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"integrity": "sha512-Q4zLT4+Csn/ZhFVacYCAl+w/1J51NW/m2y2yx7Qxp/bsHYOEsK7+5JOID2kfk+EvsaF0LbA6ccAkqiuXOmAbYw==",
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"dependencies": {
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"iobuffer": "^2.1.0"
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}
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},
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"node_modules/fast-json-stable-stringify": {
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"version": "2.1.0",
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"resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz",
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@ -7053,6 +7100,26 @@
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"integrity": "sha512-DCXu6Ifhqcks7TZKY3Hxp3y6qphY5SJZmrWMDrKcERSOXWQdMhU9Ig/PYrzyw/ul9jOIyh0N4M0tbC5hodg8dw==",
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"dev": true
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},
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"node_modules/fast-list": {
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"version": "1.0.3",
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"resolved": "https://registry.npmjs.org/fast-list/-/fast-list-1.0.3.tgz",
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"integrity": "sha512-Lm56Ci3EqefHNdIneRFuzhpPcpVVBz9fgqVmG3UQIxAefJv1mEYsZ1WQLTWqmdqeGEwbI2t6fbZgp9TqTYARuA=="
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},
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"node_modules/fast-png": {
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"version": "6.2.0",
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"resolved": "https://registry.npmjs.org/fast-png/-/fast-png-6.2.0.tgz",
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"integrity": "sha512-fO4DewoEd9WwuP8DQcfj8Tlc88Jno6lJAjlDYzvJSqMIZwxUpRT4zuzPXgqygjJqngBdCbeQRaL/FVz3InExhA==",
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"dependencies": {
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"@types/pako": "^2.0.0",
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"iobuffer": "^5.3.2",
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"pako": "^2.1.0"
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}
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},
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"node_modules/fast-png/node_modules/pako": {
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"version": "2.1.0",
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"resolved": "https://registry.npmjs.org/pako/-/pako-2.1.0.tgz",
|
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"integrity": "sha512-w+eufiZ1WuJYgPXbV/PO3NCMEc3xqylkKHzp8bxp1uW4qaSNQUkwmLLEc3kKsfz8lpV1F8Ht3U1Cm+9Srog2ug=="
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},
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"node_modules/fastq": {
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"version": "1.15.0",
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"resolved": "https://registry.npmjs.org/fastq/-/fastq-1.15.0.tgz",
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@ -7071,6 +7138,11 @@
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"pend": "~1.2.0"
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}
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},
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"node_modules/fft.js": {
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"version": "4.0.4",
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"resolved": "https://registry.npmjs.org/fft.js/-/fft.js-4.0.4.tgz",
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"integrity": "sha512-f9c00hphOgeQTlDyavwTtu6RiK8AIFjD6+jvXkNkpeQ7rirK3uFWVpalkoS4LAwbdX7mfZ8aoBfFVQX1Re/8aw=="
|
||||
},
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||||
"node_modules/figures": {
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"version": "3.2.0",
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"resolved": "https://registry.npmjs.org/figures/-/figures-3.2.0.tgz",
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@ -7107,6 +7179,14 @@
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"node": "^10.12.0 || >=12.0.0"
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}
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},
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"node_modules/file-type": {
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"version": "10.11.0",
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"resolved": "https://registry.npmjs.org/file-type/-/file-type-10.11.0.tgz",
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"integrity": "sha512-uzk64HRpUZyTGZtVuvrjP0FYxzQrBf4rojot6J65YMEbwBLB0CWm0CLojVpwpmFmxcE/lkvYICgfcGozbBq6rw==",
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"engines": {
|
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"node": ">=6"
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|
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"node_modules/filelist": {
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"version": "1.0.4",
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"resolved": "https://registry.npmjs.org/filelist/-/filelist-1.0.4.tgz",
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@ -7563,6 +7643,11 @@
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"node": ">=8"
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}
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},
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"node_modules/has-own": {
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"version": "1.0.1",
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"resolved": "https://registry.npmjs.org/has-own/-/has-own-1.0.1.tgz",
|
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"integrity": "sha512-RDKhzgQTQfMaLvIFhjahU+2gGnRBK6dYOd5Gd9BzkmnBneOCRYjRC003RIMrdAbH52+l+CnMS4bBCXGer8tEhg=="
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},
|
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"node_modules/has-property-descriptors": {
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"version": "1.0.1",
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"resolved": "https://registry.npmjs.org/has-property-descriptors/-/has-property-descriptors-1.0.1.tgz",
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@ -7860,6 +7945,52 @@
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"node": ">= 4"
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}
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},
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"node_modules/image-js": {
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"version": "0.35.5",
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"resolved": "https://registry.npmjs.org/image-js/-/image-js-0.35.5.tgz",
|
||||
"integrity": "sha512-JCtn+ggFG6qkVaKZkJDnMMLO6Xg9/WVDK+BIWcXHwT+XEdu8dzp/nlYzB5opxBkIoitWB2GGYRpF69WQmucJhQ==",
|
||||
"dependencies": {
|
||||
"@swiftcarrot/color-fns": "^3.2.0",
|
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"blob-util": "^2.0.2",
|
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"canny-edge-detector": "^1.0.0",
|
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"fast-bmp": "^2.0.1",
|
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"fast-jpeg": "^1.0.1",
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"fast-list": "^1.0.3",
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"fast-png": "^6.1.0",
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"has-own": "^1.0.1",
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"image-type": "^4.1.0",
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"is-array-type": "^1.0.0",
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"is-integer": "^1.0.7",
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"jpeg-js": "^0.4.3",
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"js-priority-queue": "^0.1.5",
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"js-quantities": "^1.7.6",
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"median-quickselect": "^1.0.1",
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"ml-convolution": "0.2.0",
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"ml-disjoint-set": "^1.0.0",
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"ml-matrix": "^6.8.0",
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"ml-matrix-convolution": "0.4.3",
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"ml-regression": "^5.0.0",
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"monotone-chain-convex-hull": "^1.0.0",
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"new-array": "^1.0.0",
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"robust-point-in-polygon": "^1.0.3",
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"tiff": "^5.0.2",
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"web-worker-manager": "^0.2.0"
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},
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"engines": {
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"node": ">= 12.0.0"
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}
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},
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"node_modules/image-type": {
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"version": "4.1.0",
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"resolved": "https://registry.npmjs.org/image-type/-/image-type-4.1.0.tgz",
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"integrity": "sha512-CFJMJ8QK8lJvRlTCEgarL4ro6hfDQKif2HjSvYCdQZESaIPV4v9imrf7BQHK+sQeTeNeMpWciR9hyC/g8ybXEg==",
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"dependencies": {
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"file-type": "^10.10.0"
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},
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"engines": {
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"node": ">=6"
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}
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},
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"node_modules/import-fresh": {
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"version": "3.3.0",
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"resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-3.3.0.tgz",
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@ -7939,6 +8070,11 @@
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"loose-envify": "^1.0.0"
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}
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},
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"node_modules/iobuffer": {
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"version": "5.3.2",
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|
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},
|
||||
"node_modules/ionicons": {
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"version": "7.2.1",
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"resolved": "https://registry.npmjs.org/ionicons/-/ionicons-7.2.1.tgz",
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@ -7955,6 +8091,11 @@
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"node": ">= 0.10"
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}
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"node_modules/is-any-array": {
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"version": "2.0.1",
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"node_modules/is-arguments": {
|
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"resolved": "https://registry.npmjs.org/is-arguments/-/is-arguments-1.1.1.tgz",
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@ -7985,6 +8126,11 @@
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"url": "https://github.com/sponsors/ljharb"
|
||||
}
|
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},
|
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"node_modules/is-array-type": {
|
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"version": "1.0.0",
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"resolved": "https://registry.npmjs.org/is-array-type/-/is-array-type-1.0.0.tgz",
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"integrity": "sha512-LLwKQdMAO/XUkq4XTed1VYqwR2OahiwkBg+yUtZT88LXX4MLXP28qGsVfSNVP8X0wc7fzDhcZD3nns/IK8UfKw=="
|
||||
},
|
||||
"node_modules/is-async-function": {
|
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"version": "2.0.0",
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"resolved": "https://registry.npmjs.org/is-async-function/-/is-async-function-2.0.0.tgz",
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@ -8115,6 +8261,17 @@
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"url": "https://github.com/sponsors/ljharb"
|
||||
}
|
||||
},
|
||||
"node_modules/is-finite": {
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|
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"engines": {
|
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"node": ">=0.10.0"
|
||||
},
|
||||
"funding": {
|
||||
"url": "https://github.com/sponsors/sindresorhus"
|
||||
}
|
||||
},
|
||||
"node_modules/is-fullwidth-code-point": {
|
||||
"version": "3.0.0",
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"resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
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||||
@ -8167,6 +8324,14 @@
|
||||
"url": "https://github.com/sponsors/sindresorhus"
|
||||
}
|
||||
},
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@ -8665,6 +8830,21 @@
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@ -9163,6 +9343,11 @@
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@ -9343,6 +9528,204 @@
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@ -9355,6 +9738,11 @@
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@ -9478,6 +9866,16 @@
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@ -10757,6 +11155,44 @@
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"node": "*"
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"node_modules/robust-point-in-polygon": {
|
||||
"version": "1.0.3",
|
||||
"resolved": "https://registry.npmjs.org/robust-point-in-polygon/-/robust-point-in-polygon-1.0.3.tgz",
|
||||
"integrity": "sha512-pPzz7AevOOcPYnFv4Vs5L0C7BKOq6C/TfAw5EUE58CylbjGiPyMjAnPLzzSuPZ2zftUGwWbmLWPOjPOz61tAcA==",
|
||||
"dependencies": {
|
||||
"robust-orientation": "^1.0.2"
|
||||
}
|
||||
},
|
||||
"node_modules/robust-scale": {
|
||||
"version": "1.0.2",
|
||||
"resolved": "https://registry.npmjs.org/robust-scale/-/robust-scale-1.0.2.tgz",
|
||||
"integrity": "sha512-jBR91a/vomMAzazwpsPTPeuTPPmWBacwA+WYGNKcRGSh6xweuQ2ZbjRZ4v792/bZOhRKXRiQH0F48AvuajY0tQ==",
|
||||
"dependencies": {
|
||||
"two-product": "^1.0.2",
|
||||
"two-sum": "^1.0.0"
|
||||
}
|
||||
},
|
||||
"node_modules/robust-subtract": {
|
||||
"version": "1.0.0",
|
||||
"resolved": "https://registry.npmjs.org/robust-subtract/-/robust-subtract-1.0.0.tgz",
|
||||
"integrity": "sha512-xhKUno+Rl+trmxAIVwjQMiVdpF5llxytozXJOdoT4eTIqmqsndQqFb1A0oiW3sZGlhMRhOi6pAD4MF1YYW6o/A=="
|
||||
},
|
||||
"node_modules/robust-sum": {
|
||||
"version": "1.0.0",
|
||||
"resolved": "https://registry.npmjs.org/robust-sum/-/robust-sum-1.0.0.tgz",
|
||||
"integrity": "sha512-AvLExwpaqUqD1uwLU6MwzzfRdaI6VEZsyvQ3IAQ0ZJ08v1H+DTyqskrf2ZJyh0BDduFVLN7H04Zmc+qTiahhAw=="
|
||||
},
|
||||
"node_modules/rollup": {
|
||||
"version": "3.29.4",
|
||||
"resolved": "https://registry.npmjs.org/rollup/-/rollup-3.29.4.tgz",
|
||||
@ -11607,6 +12043,20 @@
|
||||
"readable-stream": "3"
|
||||
}
|
||||
},
|
||||
"node_modules/tiff": {
|
||||
"version": "5.0.3",
|
||||
"resolved": "https://registry.npmjs.org/tiff/-/tiff-5.0.3.tgz",
|
||||
"integrity": "sha512-R0WckwRGhawWDNdha8iPQCjHyOiaEEmfFjhmalUVCIEELsON7Y/XO3eeGmBkoCXQp0Gg2nmTozN92Z4hlwbsow==",
|
||||
"dependencies": {
|
||||
"iobuffer": "^5.0.4",
|
||||
"pako": "^2.0.4"
|
||||
}
|
||||
},
|
||||
"node_modules/tiff/node_modules/pako": {
|
||||
"version": "2.1.0",
|
||||
"resolved": "https://registry.npmjs.org/pako/-/pako-2.1.0.tgz",
|
||||
"integrity": "sha512-w+eufiZ1WuJYgPXbV/PO3NCMEc3xqylkKHzp8bxp1uW4qaSNQUkwmLLEc3kKsfz8lpV1F8Ht3U1Cm+9Srog2ug=="
|
||||
},
|
||||
"node_modules/tiny-invariant": {
|
||||
"version": "1.3.1",
|
||||
"resolved": "https://registry.npmjs.org/tiny-invariant/-/tiny-invariant-1.3.1.tgz",
|
||||
@ -11750,6 +12200,16 @@
|
||||
"integrity": "sha512-KXXFFdAbFXY4geFIwoyNK+f5Z1b7swfXABfL7HXCmoIWMKU3dmS26672A4EeQtDzLKy7SXmfBu51JolvEKwtGA==",
|
||||
"dev": true
|
||||
},
|
||||
"node_modules/two-product": {
|
||||
"version": "1.0.2",
|
||||
"resolved": "https://registry.npmjs.org/two-product/-/two-product-1.0.2.tgz",
|
||||
"integrity": "sha512-vOyrqmeYvzjToVM08iU52OFocWT6eB/I5LUWYnxeAPGXAhAxXYU/Yr/R2uY5/5n4bvJQL9AQulIuxpIsMoT8XQ=="
|
||||
},
|
||||
"node_modules/two-sum": {
|
||||
"version": "1.0.0",
|
||||
"resolved": "https://registry.npmjs.org/two-sum/-/two-sum-1.0.0.tgz",
|
||||
"integrity": "sha512-phP48e8AawgsNUjEY2WvoIWqdie8PoiDZGxTDv70LDr01uX5wLEQbOgSP7Z/B6+SW5oLtbe8qaYX2fKJs3CGTw=="
|
||||
},
|
||||
"node_modules/type-check": {
|
||||
"version": "0.4.0",
|
||||
"resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
|
||||
@ -12399,6 +12859,11 @@
|
||||
"loose-envify": "^1.0.0"
|
||||
}
|
||||
},
|
||||
"node_modules/web-worker-manager": {
|
||||
"version": "0.2.0",
|
||||
"resolved": "https://registry.npmjs.org/web-worker-manager/-/web-worker-manager-0.2.0.tgz",
|
||||
"integrity": "sha512-WmGabA4GLth1ju9VLm/oMDcPMhMngHoBSdY1OMhrEJvNsPl7z2p+7RBOXjEi5zlP0dK+Shd3Wm+BdD5WZrNYBA=="
|
||||
},
|
||||
"node_modules/webidl-conversions": {
|
||||
"version": "7.0.0",
|
||||
"resolved": "https://registry.npmjs.org/webidl-conversions/-/webidl-conversions-7.0.0.tgz",
|
||||
@ -13191,6 +13656,7 @@
|
||||
"version": "0.0.0",
|
||||
"license": "ISC",
|
||||
"dependencies": {
|
||||
"image-js": "^0.35.5",
|
||||
"pdf-lib": "^1.17.1",
|
||||
"pdfjs-dist": "^4.0.189"
|
||||
}
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
import { PDFDocument } from 'pdf-lib';
|
||||
|
||||
export async function createSubDocument(pdfDoc, pagesToExtractArray) {
|
||||
export async function createSubDocument(pdfDoc: PDFDocument, pagesToExtractArray: number[]): Promise<Uint8Array> {
|
||||
const subDocument = await PDFDocument.create();
|
||||
|
||||
// Check that array max number is not larger pdf pages number
|
||||
@ -1,62 +0,0 @@
|
||||
import { getImagesOnPage } from "./getImagesOnPage.js";
|
||||
import PDFJS from 'pdfjs-dist';
|
||||
|
||||
export async function detectEmptyPages(snapshot, whiteThreashold, OpenCV) {
|
||||
const pdfDoc = await PDFJS.getDocument(snapshot).promise;
|
||||
|
||||
const emptyPages = [];
|
||||
for (let i = 1; i <= pdfDoc.numPages; i++) {
|
||||
const page = await pdfDoc.getPage(i);
|
||||
console.log("Checking page " + i);
|
||||
|
||||
if(!await hasText(page)) {
|
||||
console.log(`Found text on Page ${i}, page is not empty`);
|
||||
continue;
|
||||
}
|
||||
|
||||
if(!await areImagesBlank(page, whiteThreashold)) {
|
||||
console.log(`Found non white image on Page ${i}, page is not empty`);
|
||||
continue;
|
||||
}
|
||||
|
||||
console.log(`Page ${i} is empty.`);
|
||||
emptyPages.push(i - 1);
|
||||
}
|
||||
return emptyPages;
|
||||
|
||||
async function hasText(page) {
|
||||
const textContent = await page.getTextContent();
|
||||
return textContent.items.length === 0;
|
||||
}
|
||||
|
||||
async function areImagesBlank(page, threshold) {
|
||||
const images = await getImagesOnPage(page);
|
||||
for (const image of images) {
|
||||
if(!isImageBlank(image, threshold))
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
function isImageBlank(image, threshold) {
|
||||
const src = new OpenCV.cv.Mat(image.width, image.height, OpenCV.cv.CV_8UC4);
|
||||
src.data.set(image.data);
|
||||
// Convert the image to grayscale
|
||||
const gray = new OpenCV.cv.Mat();
|
||||
OpenCV.cv.cvtColor(src, gray, OpenCV.cv.COLOR_RGBA2GRAY);
|
||||
|
||||
// Calculate the mean value of the grayscale image
|
||||
const meanValue = OpenCV.cv.mean(gray);
|
||||
|
||||
// Free memory
|
||||
src.delete();
|
||||
gray.delete();
|
||||
|
||||
// Check if the mean value is below the threshold
|
||||
if (meanValue[0] <= threshold) {
|
||||
return true;
|
||||
} else {
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
50
shared-operations/functions/detectEmptyPages.ts
Normal file
50
shared-operations/functions/detectEmptyPages.ts
Normal file
@ -0,0 +1,50 @@
|
||||
import { DocumentInitParameters, PDFPageProxy } from "pdfjs-dist/types/src/display/api.js";
|
||||
import PDFJS from 'pdfjs-dist';
|
||||
import { Image } from 'image-js';
|
||||
|
||||
import { getImagesOnPage } from "./getImagesOnPage.js";
|
||||
|
||||
export async function detectEmptyPages(snapshot: string | URL | ArrayBuffer | DocumentInitParameters, whiteThreashold: number) {
|
||||
const pdfDoc = await PDFJS.getDocument(snapshot).promise;
|
||||
|
||||
const emptyPages: number[] = [];
|
||||
for (let i = 1; i <= pdfDoc.numPages; i++) {
|
||||
const page = await pdfDoc.getPage(i);
|
||||
console.log("Checking page " + i);
|
||||
|
||||
if(!await hasText(page)) {
|
||||
console.log(`Found text on Page ${i}, page is not empty`);
|
||||
continue;
|
||||
}
|
||||
|
||||
if(!await areImagesBlank(page, whiteThreashold)) {
|
||||
console.log(`Found non white image on Page ${i}, page is not empty`);
|
||||
continue;
|
||||
}
|
||||
|
||||
console.log(`Page ${i} is empty.`);
|
||||
emptyPages.push(i - 1);
|
||||
}
|
||||
return emptyPages;
|
||||
}
|
||||
|
||||
async function hasText(page: PDFPageProxy): Promise<boolean> {
|
||||
const textContent = await page.getTextContent();
|
||||
return textContent.items.length === 0;
|
||||
}
|
||||
|
||||
async function areImagesBlank(page: PDFPageProxy, threshold: number): Promise<boolean> {
|
||||
const images = await getImagesOnPage(page);
|
||||
for (const image of images) {
|
||||
if(!await isImageBlank(image, threshold))
|
||||
return false;
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
async function isImageBlank(image: string | Uint8Array | ArrayBuffer, threshold: number): Promise<boolean> {
|
||||
var img = await Image.load(image);
|
||||
var grey = img.grey();
|
||||
var mean = grey.getMean();
|
||||
return mean[0] <= threshold;
|
||||
}
|
||||
@ -1,55 +0,0 @@
|
||||
|
||||
import { PDFDocument, ParseSpeeds } from 'pdf-lib';
|
||||
|
||||
|
||||
/**
|
||||
* @typedef {Object} Metadata
|
||||
* @property {string | null | undefined} Title - The title of the document.
|
||||
* @property {string | null | undefined} Author - The author of the document.
|
||||
* @property {string | null | undefined} Subject - The subject of the document.
|
||||
* @property {string[] | null | undefined} Keywords - An array of keywords associated with the document.
|
||||
* @property {string | null | undefined} Producer - The producer of the document.
|
||||
* @property {string | null | undefined} Creator - The creator of the document.
|
||||
* @property {Date | null | undefined} CreationDate - The date when the document was created.
|
||||
* @property {Date | null | undefined} ModificationDate - The date when the document was last modified.
|
||||
*/
|
||||
|
||||
/**
|
||||
*
|
||||
* @param {Uint16Array} snapshot
|
||||
* @param {Metadata} metadata - Set property to null or "" to clear, undefined properties will be skipped.
|
||||
* @returns Promise<Uint8Array>
|
||||
*/
|
||||
export async function editMetadata(snapshot, metadata) {
|
||||
// Load the original PDF file
|
||||
const pdfDoc = await PDFDocument.load(snapshot, {
|
||||
parseSpeed: ParseSpeeds.Fastest,
|
||||
});
|
||||
|
||||
if(metadata.Title !== undefined)
|
||||
pdfDoc.setTitle(metadata.Title);
|
||||
|
||||
if(metadata.Author !== undefined)
|
||||
pdfDoc.setAuthor(metadata.Author)
|
||||
|
||||
if(metadata.Subject !== undefined)
|
||||
pdfDoc.setSubject(metadata.Subject)
|
||||
|
||||
if(metadata.Keywords !== undefined)
|
||||
pdfDoc.setKeywords(metadata.Keywords)
|
||||
|
||||
if(metadata.Producer !== undefined)
|
||||
pdfDoc.setProducer(metadata.Producer)
|
||||
|
||||
if(metadata.Creator !== undefined)
|
||||
pdfDoc.setCreator(metadata.Creator)
|
||||
|
||||
if(metadata.CreationDate !== undefined)
|
||||
pdfDoc.setCreationDate(metadata.CreationDate)
|
||||
|
||||
if(metadata.ModificationDate !== undefined)
|
||||
pdfDoc.setModificationDate(metadata.ModificationDate)
|
||||
|
||||
// Serialize the modified document
|
||||
return pdfDoc.save();
|
||||
};
|
||||
53
shared-operations/functions/editMetadata.ts
Normal file
53
shared-operations/functions/editMetadata.ts
Normal file
@ -0,0 +1,53 @@
|
||||
|
||||
import { PDFDocument, ParseSpeeds } from 'pdf-lib';
|
||||
|
||||
|
||||
export type Metadata = {
|
||||
Title: string | null | undefined; // The title of the document.
|
||||
Author: string | null | undefined; // The author of the document.
|
||||
Subject: string | null | undefined; // The subject of the document.
|
||||
Keywords: string[] | null | undefined; // An array of keywords associated with the document.
|
||||
Producer: string | null | undefined; // The producer of the document.
|
||||
Creator: string | null | undefined; // The creator of the document.
|
||||
CreationDate: Date | null | undefined; // The date when the document was created.
|
||||
ModificationDate: Date | null | undefined; // The date when the document was last modified.
|
||||
}
|
||||
/**
|
||||
*
|
||||
* @param {Uint16Array} snapshot
|
||||
* @param {Metadata} metadata - Set property to null or "" to clear, undefined properties will be skipped.
|
||||
* @returns Promise<Uint8Array>
|
||||
*/
|
||||
export async function editMetadata(snapshot: string | Uint8Array | ArrayBuffer, metadata: Metadata): Promise<Uint8Array> {
|
||||
// Load the original PDF file
|
||||
const pdfDoc = await PDFDocument.load(snapshot, {
|
||||
parseSpeed: ParseSpeeds.Fastest,
|
||||
});
|
||||
|
||||
if(metadata.Title)
|
||||
pdfDoc.setTitle(metadata.Title);
|
||||
|
||||
if(metadata.Author)
|
||||
pdfDoc.setAuthor(metadata.Author)
|
||||
|
||||
if(metadata.Subject)
|
||||
pdfDoc.setSubject(metadata.Subject)
|
||||
|
||||
if(metadata.Keywords)
|
||||
pdfDoc.setKeywords(metadata.Keywords)
|
||||
|
||||
if(metadata.Producer)
|
||||
pdfDoc.setProducer(metadata.Producer)
|
||||
|
||||
if(metadata.Creator)
|
||||
pdfDoc.setCreator(metadata.Creator)
|
||||
|
||||
if(metadata.CreationDate)
|
||||
pdfDoc.setCreationDate(metadata.CreationDate)
|
||||
|
||||
if(metadata.ModificationDate)
|
||||
pdfDoc.setModificationDate(metadata.ModificationDate)
|
||||
|
||||
// Serialize the modified document
|
||||
return pdfDoc.save();
|
||||
};
|
||||
@ -2,7 +2,7 @@
|
||||
import { PDFDocument } from 'pdf-lib';
|
||||
import { createSubDocument } from './createSubDocument';
|
||||
|
||||
export async function extractPages(snapshot, pagesToExtractArray) {
|
||||
export async function extractPages(snapshot: string | Uint8Array | ArrayBuffer, pagesToExtractArray: number[]): Promise<Uint8Array>{
|
||||
const pdfDoc = await PDFDocument.load(snapshot)
|
||||
|
||||
// TODO: invent a better format for pagesToExtractArray and convert it.
|
||||
@ -1,11 +1,12 @@
|
||||
|
||||
import { PDFPageProxy } from "pdfjs-dist/types/src/display/api.js";
|
||||
import PDFJS from 'pdfjs-dist';
|
||||
|
||||
export async function getImagesOnPage(page) {
|
||||
export async function getImagesOnPage(page: PDFPageProxy) {
|
||||
const ops = await page.getOperatorList();
|
||||
const images = [];
|
||||
const images: any = [];
|
||||
for (var j=0; j < ops.fnArray.length; j++) {
|
||||
if (ops.fnArray[j] == PDFJS.OPS.paintJpegXObject || ops.fnArray[j] == PDFJS.OPS.paintImageXObject) {
|
||||
if (ops.fnArray[j] == PDFJS.OPS.paintImageXObject) {
|
||||
const image = page.objs.get(ops.argsArray[j][0]);
|
||||
images.push(image);
|
||||
}
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
import { PDFDocument } from 'pdf-lib';
|
||||
|
||||
export const mergePDFs = async (snapshots) => {
|
||||
export async function mergePDFs(snapshots: (string | Uint8Array | ArrayBuffer)[]): Promise<Uint8Array> {
|
||||
|
||||
const mergedPdf = await PDFDocument.create();
|
||||
|
||||
@ -1,19 +1,17 @@
|
||||
|
||||
import { PDFDocument } from 'pdf-lib';
|
||||
|
||||
/**
|
||||
* @typedef {"CUSTOM_PAGE_ORDER"|"REVERSE_ORDER"|"DUPLEX_SORT"|"BOOKLET_SORT"|"ODD_EVEN_SPLIT"|"REMOVE_FIRST"|"REMOVE_LAST"|"REMOVE_FIRST_AND_LAST"} OrderOperation
|
||||
*/
|
||||
|
||||
/**
|
||||
*
|
||||
* @param {Uint16Array} snapshot
|
||||
* @param {OrderOperation} operation
|
||||
* @param {string} customOrderString
|
||||
* @param {import('pdf-lib')} PDFLib
|
||||
* @returns
|
||||
*/
|
||||
export async function organizePages(snapshot, operation, customOrderString) {
|
||||
export async function organizePages(
|
||||
snapshot: string | Uint8Array | ArrayBuffer,
|
||||
operation: "CUSTOM_PAGE_ORDER" |
|
||||
"REVERSE_ORDER" |
|
||||
"DUPLEX_SORT" |
|
||||
"BOOKLET_SORT" |
|
||||
"ODD_EVEN_SPLIT" |
|
||||
"REMOVE_FIRST" |
|
||||
"REMOVE_LAST" |
|
||||
"REMOVE_FIRST_AND_LAST",
|
||||
customOrderString: string): Promise<Uint8Array> {
|
||||
const pdfDoc = await PDFDocument.load(snapshot);
|
||||
let subDocument = await PDFDocument.create();
|
||||
const copiedPages = await subDocument.copyPages(pdfDoc, pdfDoc.getPageIndices());
|
||||
@ -90,8 +88,8 @@ export async function organizePages(snapshot, operation, customOrderString) {
|
||||
return subDocument.save();
|
||||
};
|
||||
|
||||
function parseCustomPageOrder(customOrder, pageCount) {
|
||||
const pageOrderArray = [];
|
||||
function parseCustomPageOrder(customOrder: string, pageCount: number) {
|
||||
const pageOrderArray: number[] = [];
|
||||
const ranges = customOrder.split(',');
|
||||
|
||||
ranges.forEach((range) => {
|
||||
@ -1,9 +1,9 @@
|
||||
import { PDFDocument } from 'pdf-lib';
|
||||
import { detectEmptyPages } from "./detectEmptyPages.js";
|
||||
|
||||
export async function removeBlankPages(snapshot, whiteThreashold, OpenCV) {
|
||||
export async function removeBlankPages(snapshot, whiteThreashold) {
|
||||
|
||||
const emptyPages = await detectEmptyPages(snapshot, whiteThreashold, OpenCV);
|
||||
const emptyPages = await detectEmptyPages(snapshot, whiteThreashold);
|
||||
|
||||
console.log("Empty Pages: ", emptyPages);
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
import { PDFDocument, ParseSpeeds, degrees } from 'pdf-lib';
|
||||
|
||||
export async function rotatePages(snapshot, rotation) {
|
||||
export async function rotatePages(snapshot: string | Uint8Array | ArrayBuffer, rotation: number): Promise<Uint8Array> {
|
||||
// Load the original PDF file
|
||||
const pdfDoc = await PDFDocument.load(snapshot, {
|
||||
parseSpeed: ParseSpeeds.Fastest,
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
import { PDFDocument, ParseSpeeds } from 'pdf-lib';
|
||||
|
||||
export async function scaleContent(snapshot, scaleFactor) {
|
||||
export async function scaleContent(snapshot: string | Uint8Array | ArrayBuffer, scaleFactor: number): Promise<Uint8Array> {
|
||||
// Load the original PDF file
|
||||
const pdfDoc = await PDFDocument.load(snapshot, {
|
||||
parseSpeed: ParseSpeeds.Fastest,
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
import { PDFDocument, ParseSpeeds } from 'pdf-lib';
|
||||
|
||||
export async function scalePage(snapshot, pageSize) {
|
||||
export async function scalePage(snapshot: string | Uint8Array | ArrayBuffer, pageSize: {width:number,height:number}): Promise<Uint8Array> {
|
||||
// Load the original PDF file
|
||||
const pdfDoc = await PDFDocument.load(snapshot, {
|
||||
parseSpeed: ParseSpeeds.Fastest,
|
||||
@ -1,60 +1,52 @@
|
||||
import { detectEmptyPages } from "./shared/detectEmptyPages.js";
|
||||
import { getImagesOnPage } from "./shared/getImagesOnPage.js";
|
||||
import { createSubDocument } from "./shared/createSubDocument.js";
|
||||
|
||||
import { PDFDocument } from 'pdf-lib';
|
||||
import PDFJS from 'pdfjs-dist';
|
||||
|
||||
/**
|
||||
* @typedef {"BAR_CODE"|"QR_CODE"|"BLANK_PAGE"} SplitType
|
||||
*/
|
||||
import { detectEmptyPages } from "./detectEmptyPages.js";
|
||||
import { getImagesOnPage } from "./getImagesOnPage.js";
|
||||
import { createSubDocument } from "./createSubDocument.js";
|
||||
import { TypedArray, DocumentInitParameters } from 'pdfjs-dist/types/src/display/api.js';
|
||||
|
||||
/**
|
||||
*
|
||||
* @param {Uint16Array} snapshot
|
||||
* @param {SplitType} type
|
||||
* @param {} PDFJS
|
||||
* @param {import('opencv-wasm')} OpenCV
|
||||
* @param {} PDFLib
|
||||
* @returns
|
||||
*/
|
||||
export async function splitOn(snapshot, type, whiteThreashold, OpenCV, PDFLib, jsQR) {
|
||||
|
||||
let splitAtPages = [];
|
||||
export async function splitOn(
|
||||
snapshot: string | ArrayBuffer | Uint8Array,
|
||||
type: "BAR_CODE"|"QR_CODE"|"BLANK_PAGE",
|
||||
whiteThreashold: number,
|
||||
jsQR: (arg0: any, arg1: number, arg2: number) => any) {
|
||||
let splitAtPages: number[] = [];
|
||||
|
||||
switch (type) {
|
||||
case "BAR_CODE":
|
||||
// TODO: Implement
|
||||
throw new Error("This split-type has not been implemented yet");
|
||||
break;
|
||||
|
||||
case "QR_CODE":
|
||||
splitAtPages = await getPagesWithQRCode(snapshot);
|
||||
break;
|
||||
|
||||
case "BLANK_PAGE":
|
||||
splitAtPages = await detectEmptyPages(snapshot, whiteThreashold, OpenCV);
|
||||
splitAtPages = await detectEmptyPages(snapshot, whiteThreashold);
|
||||
break;
|
||||
|
||||
default:
|
||||
throw new Error("An invalid split-type was provided.")
|
||||
break;
|
||||
throw new Error("An invalid split-type was provided.");
|
||||
}
|
||||
|
||||
console.log("Split At Pages: ", splitAtPages);
|
||||
|
||||
// Remove detected Pages & Split
|
||||
const pdfDoc = await PDFLib.PDFDocument.load(snapshot);
|
||||
const pdfDoc = await PDFDocument.load(snapshot);
|
||||
|
||||
const numberOfPages = pdfDoc.getPages().length;
|
||||
|
||||
let pagesArray = [];
|
||||
let pagesArray: number[] = [];
|
||||
let splitAfter = splitAtPages.shift();
|
||||
const subDocuments = [];
|
||||
const subDocuments: Uint8Array[] = [];
|
||||
|
||||
for (let i = 0; i < numberOfPages; i++) {
|
||||
console.log(i);
|
||||
if(i == splitAfter) {
|
||||
if(pagesArray.length > 0) {
|
||||
subDocuments.push(await createSubDocument(pdfDoc, pagesArray, PDFLib));
|
||||
subDocuments.push(await createSubDocument(pdfDoc, pagesArray));
|
||||
pagesArray = [];
|
||||
}
|
||||
splitAfter = splitAtPages.shift();
|
||||
@ -65,16 +57,16 @@ export async function splitOn(snapshot, type, whiteThreashold, OpenCV, PDFLib, j
|
||||
}
|
||||
}
|
||||
if(pagesArray.length > 0) {
|
||||
subDocuments.push(await createSubDocument(pdfDoc, pagesArray, PDFLib));
|
||||
subDocuments.push(await createSubDocument(pdfDoc, pagesArray));
|
||||
}
|
||||
pagesArray = [];
|
||||
|
||||
return subDocuments;
|
||||
|
||||
async function getPagesWithQRCode(snapshot) {
|
||||
async function getPagesWithQRCode(snapshot: string | ArrayBuffer | URL | TypedArray | DocumentInitParameters) {
|
||||
const pdfDoc = await PDFJS.getDocument(snapshot).promise;
|
||||
|
||||
const pagesWithQR = [];
|
||||
const pagesWithQR: number[] = [];
|
||||
for (let i = 0; i < pdfDoc.numPages; i++) {
|
||||
console.log("Page:", i, "/", pdfDoc.numPages);
|
||||
const page = await pdfDoc.getPage(i + 1);
|
||||
@ -1,9 +1,10 @@
|
||||
|
||||
import { PDFDocument } from 'pdf-lib';
|
||||
|
||||
import { createSubDocument } from "./shared/extractPages.js";
|
||||
import { createSubDocument } from "./createSubDocument.js";
|
||||
|
||||
export async function splitPDF(snapshot: string | Uint8Array | ArrayBuffer, splitAfterPageArray: number[]): Promise<Uint8Array[]> {
|
||||
|
||||
export async function splitPDF(snapshot, splitAfterPageArray) {
|
||||
const pdfDoc = await PDFDocument.load(snapshot)
|
||||
|
||||
const numberOfPages = pdfDoc.getPages().length;
|
||||
@ -13,7 +14,7 @@ export async function splitPDF(snapshot, splitAfterPageArray) {
|
||||
const subDocuments = [];
|
||||
|
||||
for (let i = 0; i < numberOfPages; i++) {
|
||||
if(i > splitAfter && pagesArray.length > 0) {
|
||||
if(splitAfter && i > splitAfter && pagesArray.length > 0) {
|
||||
subDocuments.push(await createSubDocument(pdfDoc, pagesArray));
|
||||
splitAfter = splitAfterPageArray.shift();
|
||||
pagesArray = [];
|
||||
@ -9,6 +9,7 @@
|
||||
"author": "",
|
||||
"license": "ISC",
|
||||
"dependencies": {
|
||||
"image-js": "^0.35.5",
|
||||
"pdf-lib": "^1.17.1",
|
||||
"pdfjs-dist": "^4.0.189"
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user