1.4.3 (2026-10-05)
- preserve inserts when
updatespans several chunks (#361) (fb89bad) - replace the matched text when an offset is set (#362) (607e8e4)
1.4.2 (2026-09-23)
- keep the outro when splitting a removed chunk (#358) (2a665f6)
- skip empty matches inside removed content in replaceAll (#359) (2eb0f6f)
1.4.1 (2026-09-15)
1.4.0 (2026-09-15)
- add affinity option to move() (#351) (f849b39)
- bundle: add toMagicString() to flatten a Bundle into a MagicString (#353) (3a7c7b0)
1.3.2 (2026-09-15)
- carry trimStart and trimEnd into the outro and intro (#348) (07d2fcb)
- preserve inserts anchored to the edges of a removed range (#282) (#349) (bd7ee85)
- return an empty slice when the end index resolves to zero (#346) (5531971)
- treat moving a range to where it already sits as a no-op (#347) (22ed11b)
1.3.1 (2026-09-10)
1.3.0 (2026-09-10)
- count source appends and prepends in Bundle#length (#344) (f1797b4), closes Bundle#length
- count string-level appends and prepends in isEmpty (#345) (d489a75)
- expand
$substitutions inreplaceasString.prototypedoes (#340) (cd05874) - indent content added with
append/prepend(#343) (18986e0) - only pass the groups object to a replacer when the pattern has named groups (#342) (574366f)
- add hires mode source map mode using range mappings (#317) (708e379)
- support a function for
includeContentin Bundle (#165) (ead0c08)
- avoid split() when locating lines (#338) (7e0060b)
- walk unedited chunks line by line when generating mappings (#339) (910a39c)
1.2.3 (2026-08-26)
- clamp negative indices below -length instead of wrapping repeatedly (#337) (9391bb7)
- guess the most common indentation in a bundle (#334) (111b030)
- handle empty matches in
replaceandreplaceAll(#335) (b6a53f7) - trim the separators between sources (#333) (1bb4cce)
1.2.2 (2026-08-20)
hasChangedreports a change when an edit spans a chunk boundary (#331) (811de46)- keep the ignore-list hint and stored names when cloning (#329) (ddf02ca)
1.2.1 (2026-08-19)
- count separators in Bundle#isEmpty (#327) (0bc98c9), closes Bundle#isEmpty
- throw instead of corrupting the chunk list on an overlapping move (#326) (9a9207c)
1.2.0 (2026-08-13)
1.1.1 (2026-08-12)
- count separators in Bundle#length (#322) (b66f1e5), closes Bundle#length
- use a source's own separator in Bundle sourcemaps (#323) (58b4118)
- validate update() range and show indices in range errors (#318) (7c0b663)
1.1.0 (2026-07-23)
1.0.0 (2026-07-16)
0.30.21 (2025-10-24)
0.30.20 (2025-10-24)
0.30.19 (2025-09-08)
replace(All)support replacement for functions when the first parameter is a string (#304) (fd1d887)
0.30.18 (2025-08-22)
0.30.17 (2024-12-16)
- remove problematic
type: module(092697b)
0.30.16 (2024-12-16)
0.30.15 (2024-12-10)
0.30.14 (2024-11-26)
0.30.13 (2024-11-18)
0.30.12 (2024-10-11)
0.30.11 (2024-07-29)
0.30.10 (2024-04-17)
0.30.9 (2024-04-04)
- avoid create uncessary overrides for
replace(a1b857c)
0.30.8 (2024-03-03)
0.30.7 (2024-02-05)
0.30.6 (2024-01-31)
0.30.5 (2023-10-12)
0.30.4 (2023-09-29)
- correct mappings for update containing new line (#261) (adaece9)
- use global
btoa, support services worker, close #258 (#259) (2dea20b)
0.30.3 (2023-08-21)
0.30.2 (2023-07-28)
0.30.1 (2023-07-04)
0.30.0 (2023-02-22)
0.29.0 (2023-02-11)
- x_google_ignoreList: initial support for ignore lists (3c711cd)
0.28.0 (2023-02-11)
0.27.0 (2022-12-03)
- use @jridgewell/sourcemap-codec (e68f3e0)
0.26.7 (2022-10-09)
0.26.6 (2022-10-05)
0.26.5 (2022-09-30)
0.26.4 (2022-09-22)
0.26.3 (2022-08-30)
0.26.2 (2022-05-11)
0.26.1 (2022-03-03)
- replace: match replacer function signature with spec (902541f)
0.26.0 (2022-03-03)
- Support of Node.js v10 is dropped. Now
magic-stringrequires Node.js v12 or higher. (#204) - ESM bundle is now shipped with
.mjsextension (#197)
- "module": "dist/magic-string.es.js",
+ "module": "dist/magic-string.es.mjs",
+ "exports": {
+ "./package.json": "./package.json",
+ ".": {
+ "import": "./dist/magic-string.es.mjs",
+ "require": "./dist/magic-string.cjs.js"
+ }
+ },0.25.9 (2022-03-03)
- allowed overwrite across moved content preceded by split (#192) (403fa86)
- types: make options partial by default (2815e77)
- use defineProperty for appending prop in
storeName(#194) (96b7cd3)
0.25.8 (2022-03-02)
- fix bundle mappings after remove and move in multiple sources (#172)
- Use bitwise operators for small performance boost (#171)
- Use a bitset to reduce memory consumption (#167)
- Clone
introandoutro(#162)
- Fix typing of
SourceMap.version.
- Remove deprecated
new Buffer(...) - Handle characters outside Latin1 range when generating a sourcemap in browser (#154)
- Additional types for index.d.ts (#148)
- Add
lastLineandlastCharmethods (#142)
- Add
isEmptymethods (#137) - Fix a potential race condition (#136)
- Fix CJS/ES bundles inlining
sourcemap-codecin 0.23.2.
- Add
generateDecodedMapmethods (#134)
- Performance (#132)
- Use
sourcemap-codecfor improved performance (#133)
- Add TypeScript interfaces used by rollup (#131)
- Remove src directory from npm package
contentOnlyandstoreNameare both optional
- Add
originalto TS definitions
- Avoid
declare module(#127)
- Update TypeScript definitions (#124)
- Add
defaultproperty referencing self in index-legacy.js, to work around TypeScript bug (#121)
- Add typings file to package
- Add TypeScript bindings (#119)
- The fourth argument to
overwriteis a{storeName, contentOnly}options object.storeName: trueis equivalent totruebefore.contentOnlywill preserve existing appends/prepends to the chunk in question
- Prevent overwrites across a split point (i.e. following a
move) - Implement
removeseparately tooverwrite
- More accurate bundle sourcemaps (#114)
- Optimisation – remove empty chunks following
overwriteorremove(#113)
- Add
appendLeft,appendRight,prependLeft,prependRightmethods (#109) insertLeftandinsertRightare deprecated in favour ofappendLeftandprependRightrespectively
- Include inserts in range for
overwriteandremoveoperations (#89) - Make options optional for
bundle.generateMap(...)(#73)
- Generate correct bundle sourcemap with prepended/appended content
- Minor sourcemap fixes
- Use named export of
Bundlein ES build, so ES consumers of magic-string can tree-shake it out
- Throw if overwrite of zero-length range is attempted
- Correctly handle redundant move operations
- Fix a bevy of
s.slice()issues (#62)
- Breaking:
insertAfteris nowinsertLeft,insertBeforeis nowinsertRight - Breaking:
insertis no longer available. UseinsertLeftandinsertRight - Significant performance improvements
- Fix sourcemap generation with
insertAfterandinsertBefore
- Add
insertAfterandinsertBeforemethods
- Fix two regression bugs with
trim() - More informative error message on illegal removals
- Fix trim methods to ensure correct sourcemaps with trimmed content (#53)
- Support sourcemaps with moved content
- Use
findIndexhelper for 0.12 support
- Add experimental
move()method - Refactor internals to support
move()
- Do not overwrite inserts at the end of patched ranges (#35)
- Zero-length inserts are not removed on adjacent overwrites
- Complete rewrite, resulting in ~40x speed increase (#30)
- Breaking –
magicString.locateandlocateOriginare deprecated - More forgiving rules about contiguous patches, and which ranges are valid with
magicString.slice(...)
- Update deps
- Update build process
- Add an ES6 build, change default UMD build to CommonJS (but keeping existing UMD build with bundled dependencies)
- Make properties non-enumerable, for cleaner logging
- Update dependencies
- The
namesarray is populated when generating sourcemaps, and mappings include name indices where appropriate (#16) - Replaced content is mapped correctly in sourcemaps (#15)
- Adjust mappings correctly when removing replaced content
- Error correctly when removed characters are used as slice anchors
- Fix
jsnext:mainin package.json
- Fix bug with positive integer coercion
- Intro content is correctly indented
- Content following an intro with trailing newline is correctly indented
- Noop indents are still chainable (fixes bug introduced in 0.6.1)
- Indenting with an empty string is a noop
- Use rollup for bundling, instead of esperanto
- Correct sourcemap generation with bundles containing varied separators
s.clone()clones indent exclusion ranges and sourcemap locations
s.slice()accepts negative numbers, and the second argument can be omitted (means 'original string length'), just likeString.prototype.slice- More informative error message when trying to overwrite content illegally
- Allow bundle separator to be the empty string
- Indenting is handled correctly with empty string separator
s.replace()is deprecated in favour ofs.overwrite()(identical signature)bundle.addSource()can take aMagicStringinstance as its sole argument, for convenience- The
optionsinnew MagicString(str, options)can includefilenameandindentExclusionRangesoptions, which will be used when bundling - New method:
s.snip( start, end )
fileoption is optional when generating a bundle sourcemap
- Repeated insertions at position 0 behave the same as other positions (#10)
- Overlapping ranges can be removed
- Non-string content is rejected (#9)
- Implement
source.addSourcemapLocation()
- Another Windows fix, this time for file paths when bundling
- Handle Windows-style CRLF newlines when determining whether a line is empty
- Fix typo in package.json (d'oh again)
- Use only relative paths for internal modules - makes bundling with dependents (i.e. esperanto) possible
- Includes correct files in npm package (d'oh)
- Using experimental Esperanto feature (esperantojs/esperanto#68) to generate version with
vlqdependency included
- Fixes a bug whereby multiple insertions at the same location would cause text to repeat (#5)
- Breaking change -
source.indentStrisnullif no lines are indented. Usesource.getIndentString()for the old behaviour (guess, and if no lines are indented, return\t) bundle.getIndentString()ignores sources with no indented lines when guessing indentation (#3)
source.trimLines()removes empty lines from start/end of source, leaving other whitespace untouched- Indentation is not added to an empty source
- Performance improvement - adjustments are only made when necessary
- Single spaces are ignored when guessing indentation - experience shows these are more likely to be e.g. JSDoc comments than actual indentation
bundle.addSource()can take anindentExclusionRangesoption
- Empty lines are not indented
- Fixes edge case with bundle sourcemaps
- Make
sourcespaths in sourcemaps relative tooptions.file
- Minor fix for
bundle.indent()
- Implement
MagicString.Bundlefor concatenating magic strings
- Fix sourcemap encoding
- Better performance when indenting large chunks of code
- Sourcemaps generated with
s.generateMap()have atoUrl()method that generates a DataURI
- Implement
s.insert( index, content )- roughly equivalent tos.replace( index, index, content )
- Version bump for npm's benefit
s.indent({ exclude: [ x, y ] })prevents lines between (original) charactersxandyfrom being indented. Multiple exclusion ranges are also supported (e.g.exclude: [[a, b], [c, d]])
s.locate()doesn't throw out-of-bound error if index is equal to original string's length
s.trim()returnsthis(i.e. is chainable)
- Implement
s.slice()
- Implement
s.trim()
- First release