chore(deps-dev): Bump jscpd from 4.1.0 to 4.2.3

[dependabot]

Bumps jscpd from 4.1.0 to 4.2.3.

Release notes

Sourced from jscpd's releases.

jscpd v4.2.0

Breaking Changes

• Vue SFC tokenization — .vue files are no longer tokenized as markup. Each block is now dispatched to its own sub-format: <script> → javascript, <script lang="ts"> → typescript, \<template> → markup, <style> → css, <style lang="scss"> → scss, <style lang="less"> → less. Clone reports for .vue files now appear under these resolved sub-format names. Any tooling or configuration that relied on .vue clones being reported under markup must be updated.
• --formatsExts users — custom mappings that pointed .vue to markup (e.g. "formatsExts": { "markup": ["vue"] }) will no longer take effect because .vue is handled by the dedicated vue format processor. Remove or update such mappings.

New Features

• Custom tokenizer backend — replaced the prismjs npm package with a self-contained reprism-based grammar engine. ~11.5% faster tokenization on real projects (avg 1126 ms → 997 ms on a 548-file, 223-format scan).
• Cross-format detection — Vue SFC (.vue), Svelte (.svelte), Astro (.astro), and Markdown files are now tokenized per-block/per-section. A <script> block in a .vue file can match a .ts file; a fenced code block in Markdown can match a .py file.
• 223 supported formats — Apex, CFML/ColdFusion, GDScript, Svelte, Astro, and 70+ additional languages added (up from 152). See https://github.com/kucherenko/jscpd/blob/HEAD/supported_formats.md.
• Shebang detection — extensionless executable scripts (e.g. /usr/bin/env python3) are auto-detected by their #! shebang line and tokenized in the correct language.
• --store-path — configure a custom directory for the LevelDB cache, eliminating collisions when multiple jscpd processes run in parallel on the same machine.
• --skipComments — shorthand flag for --mode weak, which strips comments before detection.
• --formats-names — map specific filenames (e.g. Makefile, Dockerfile) to a detection format.

Bug Fixes

• Entire-file duplicates silently dropped (@jscpd/core #728) — RabinKarp flushed the pending clone on a store hit at end-of-file instead of on a miss. Files that are complete copies of each other were undetected. Fixed.
• ReDoS hang on Lisp/Elisp files (@jscpd/tokenizer #737) — the Lisp string regex /"(?:[^"\\]*|\\.)*"/ could catastrophically backtrack (O(2ⁿ)) on unterminated strings. Replaced with a linear /"(?:[^"\\]|\\[\s\S])*"/ pattern.
• Process crash on malformed package.json (#739) — readJSONSync threw an unhandled SyntaxError when package.json contained invalid JSON, killing the process. Now emits a warning and continues with an empty config.
• Vue SFC cross-file detection broken — the detector used the file-level format (vue) as the store namespace for all SFC blocks, preventing a <script> block in one .vue file from ever matching a <script> block in another. The namespace now reflects each block's resolved sub-format.
• Vue SFC incorrect column numbers — tokens on the first line of a block carried block-relative column 1 instead of file-absolute column numbers. Fixed in @jscpd/tokenizer.
• 50 dependency security vulnerabilities remediated across the monorepo (Dependabot batches).

Known Limitations

• Malformed SFC blocks (e.g. unclosed tags, invalid attributes) are silently skipped and do not contribute tokens.

Changelog

Sourced from jscpd's changelog.

Changelog

All notable changes to jscpd are documented here. Releases follow Semantic Versioning.

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4.2.0 — 2026-05-14

Breaking Changes

• Vue SFC tokenization — .vue files are no longer tokenized as markup. Each block is now dispatched to its own sub-format: <script> → javascript, <script lang="ts"> → typescript, \<template> → markup, <style> → css, <style lang="scss"> → scss, <style lang="less"> → less. Clone reports for .vue files now appear under these resolved sub-format names. Any tooling or configuration that relied on .vue clones being reported under markup must be updated.
• --formatsExts users — custom mappings that pointed .vue to markup (e.g. "formatsExts": { "markup": ["vue"] }) will no longer take effect because .vue is handled by the dedicated vue format processor. Remove or update such mappings.

New Features

• Custom tokenizer backend — replaced the prismjs npm package with a self-contained reprism-based grammar engine. ~11.5% faster tokenization on real projects (avg 1126 ms → 997 ms on a 548-file, 223-format scan).
• Cross-format detection — Vue SFC (.vue), Svelte (.svelte), Astro (.astro), and Markdown files are now tokenized per-block/per-section. A <script> block in a .vue file can match a .ts file; a fenced code block in Markdown can match a .py file.
• 223 supported formats — Apex, CFML/ColdFusion, GDScript, Svelte, Astro, and 70+ additional languages added (up from 152). See https://github.com/kucherenko/jscpd/blob/master/FORMATS.md.
• Shebang detection — extensionless executable scripts (e.g. /usr/bin/env python3) are auto-detected by their #! shebang line and tokenized in the correct language.
• --store-path — configure a custom directory for the LevelDB cache, eliminating collisions when multiple jscpd processes run in parallel on the same machine.
• --skipComments — shorthand flag for --mode weak, which strips comments before detection.
• --formats-names — map specific filenames (e.g. Makefile, Dockerfile) to a detection format.

Bug Fixes

• Entire-file duplicates silently dropped (@jscpd/core #728) — RabinKarp flushed the pending clone on a store hit at end-of-file instead of on a miss. Files that are complete copies of each other were undetected. Fixed.
• ReDoS hang on Lisp/Elisp files (@jscpd/tokenizer #737) — the Lisp string regex /"(?:[^"\\]*|\\.)*"/ could catastrophically backtrack (O(2ⁿ)) on unterminated strings. Replaced with a linear /"(?:[^"\\]|\\[\s\S])*"/ pattern.
• Process crash on malformed package.json (#739) — readJSONSync threw an unhandled SyntaxError when package.json contained invalid JSON, killing the process. Now emits a warning and continues with an empty config.
• Vue SFC cross-file detection broken — the detector used the file-level format (vue) as the store namespace for all SFC blocks, preventing a <script> block in one .vue file from ever matching a <script> block in another. The namespace now reflects each block's resolved sub-format.
• Vue SFC incorrect column numbers — tokens on the first line of a block carried block-relative column 1 instead of file-absolute column numbers. Fixed in @jscpd/tokenizer.
• 50 dependency security vulnerabilities remediated across the monorepo (Dependabot batches).

Known Limitations

• Malformed SFC blocks (e.g. unclosed tags, invalid attributes) are silently skipped and do not contribute tokens.

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