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feat: add support for custom patch delimiters in PatchDocumentOptions (#3036)

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* feat: add support for custom patch delimiters in PatchDocumentOptions

* chore: add validation for placeholder delimiters
This commit is contained in:
Venkateshwar Reddy
2025-04-16 12:48:55 +05:30
committed by GitHub
parent 4d1a351649
commit 5af1045a59
4 changed files with 275 additions and 1 deletions
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13
src/patcher/from-docx.ts
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@ -55,6 +55,10 @@ export type PatchDocumentOptions<T extends PatchDocumentOutputType = PatchDocume
readonly data: InputDataType;
readonly patches: Readonly<Record<string, IPatch>>;
readonly keepOriginalStyles?: boolean;
readonly placeholderDelimiters?: Readonly<{
readonly start: string;
readonly end: string;
}>;
};
const imageReplacer = new ImageReplacer();
@ -64,6 +68,7 @@ export const patchDocument = async <T extends PatchDocumentOutputType = PatchDoc
data,
patches,
keepOriginalStyles,
placeholderDelimiters = { start: "{{", end: "}}" } as const,
}: PatchDocumentOptions<T>): Promise<OutputByType[T]> => {
const zipContent = await JSZip.loadAsync(data);
const contexts = new Map<string, IContext>();
@ -132,8 +137,14 @@ export const patchDocument = async <T extends PatchDocumentOutputType = PatchDoc
};
contexts.set(key, context);
if (!placeholderDelimiters?.start.trim() || !placeholderDelimiters?.end.trim()) {
throw new Error("Both start and end delimiters must be non-empty strings.");
}
const { start, end } = placeholderDelimiters;
for (const [patchKey, patchValue] of Object.entries(patches)) {
const patchText = `{{${patchKey}}}`;
const patchText = `${start}${patchKey}${end}`;
// TODO: mutates json. Make it immutable
// We need to loop through to catch every occurrence of the patch text
// It is possible that the patch text is in the same run