schnee effeckt und fehler Korektur
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node_modules/semver/README.md
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163
node_modules/semver/README.md
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semver(1) -- The semantic versioner for npm
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===========================================
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## Install
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```bash
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npm install --save semver
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````
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## Usage
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$ npm install semver
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As a node module:
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semver.valid('1.2.3') // '1.2.3'
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semver.valid('a.b.c') // null
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semver.clean(' =v1.2.3 ') // '1.2.3'
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semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true
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semver.gt('1.2.3', '9.8.7') // false
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semver.lt('1.2.3', '9.8.7') // true
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```js
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const semver = require('semver')
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semver.valid('1.2.3') // '1.2.3'
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semver.valid('a.b.c') // null
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semver.clean(' =v1.2.3 ') // '1.2.3'
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semver.satisfies('1.2.3', '1.x || >=2.5.0 || 5.0.0 - 7.2.3') // true
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semver.gt('1.2.3', '9.8.7') // false
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semver.lt('1.2.3', '9.8.7') // true
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semver.minVersion('>=1.0.0') // '1.0.0'
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semver.valid(semver.coerce('v2')) // '2.0.0'
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semver.valid(semver.coerce('42.6.7.9.3-alpha')) // '42.6.7'
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```
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As a command-line utility:
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$ semver -h
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```
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$ semver -h
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Usage: semver <version> [<version> [...]] [-r <range> | -i <inc> | --preid <identifier> | -l | -rv]
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Test if version(s) satisfy the supplied range(s), and sort them.
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A JavaScript implementation of the https://semver.org/ specification
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Copyright Isaac Z. Schlueter
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Multiple versions or ranges may be supplied, unless increment
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option is specified. In that case, only a single version may
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be used, and it is incremented by the specified level
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Usage: semver [options] <version> [<version> [...]]
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Prints valid versions sorted by SemVer precedence
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Program exits successfully if any valid version satisfies
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all supplied ranges, and prints all satisfying versions.
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Options:
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-r --range <range>
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Print versions that match the specified range.
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If no versions are valid, or ranges are not satisfied,
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then exits failure.
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-i --increment [<level>]
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Increment a version by the specified level. Level can
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be one of: major, minor, patch, premajor, preminor,
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prepatch, or prerelease. Default level is 'patch'.
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Only one version may be specified.
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Versions are printed in ascending order, so supplying
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multiple versions to the utility will just sort them.
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--preid <identifier>
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Identifier to be used to prefix premajor, preminor,
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prepatch or prerelease version increments.
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-l --loose
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Interpret versions and ranges loosely
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-p --include-prerelease
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Always include prerelease versions in range matching
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-c --coerce
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Coerce a string into SemVer if possible
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(does not imply --loose)
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Program exits successfully if any valid version satisfies
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all supplied ranges, and prints all satisfying versions.
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If no satisfying versions are found, then exits failure.
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Versions are printed in ascending order, so supplying
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multiple versions to the utility will just sort them.
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```
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## Versions
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A "version" is described by the `v2.0.0` specification found at
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<http://semver.org/>.
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<https://semver.org/>.
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A leading `"="` or `"v"` character is stripped off and ignored.
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@@ -101,26 +138,33 @@ the user is indicating that they are aware of the risk. However, it
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is still not appropriate to assume that they have opted into taking a
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similar risk on the *next* set of prerelease versions.
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Note that this behavior can be suppressed (treating all prerelease
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versions as if they were normal versions, for the purpose of range
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matching) by setting the `includePrerelease` flag on the options
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object to any
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[functions](https://github.com/npm/node-semver#functions) that do
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range matching.
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#### Prerelease Identifiers
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The method `.inc` takes an additional `identifier` string argument that
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will append the value of the string as a prerelease identifier:
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```javascript
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> semver.inc('1.2.3', 'pre', 'beta')
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'1.2.4-beta.0'
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semver.inc('1.2.3', 'prerelease', 'beta')
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// '1.2.4-beta.0'
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```
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command-line example:
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```shell
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```bash
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$ semver 1.2.3 -i prerelease --preid beta
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1.2.4-beta.0
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```
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Which then can be used to increment further:
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```shell
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```bash
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$ semver 1.2.4-beta.0 -i prerelease
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1.2.4-beta.1
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```
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@@ -228,11 +272,45 @@ zero.
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* `^1.x` := `>=1.0.0 <2.0.0`
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* `^0.x` := `>=0.0.0 <1.0.0`
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### Range Grammar
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Putting all this together, here is a Backus-Naur grammar for ranges,
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for the benefit of parser authors:
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```bnf
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range-set ::= range ( logical-or range ) *
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logical-or ::= ( ' ' ) * '||' ( ' ' ) *
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range ::= hyphen | simple ( ' ' simple ) * | ''
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hyphen ::= partial ' - ' partial
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simple ::= primitive | partial | tilde | caret
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primitive ::= ( '<' | '>' | '>=' | '<=' | '=' ) partial
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partial ::= xr ( '.' xr ( '.' xr qualifier ? )? )?
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xr ::= 'x' | 'X' | '*' | nr
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nr ::= '0' | ['1'-'9'] ( ['0'-'9'] ) *
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tilde ::= '~' partial
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caret ::= '^' partial
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qualifier ::= ( '-' pre )? ( '+' build )?
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pre ::= parts
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build ::= parts
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parts ::= part ( '.' part ) *
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part ::= nr | [-0-9A-Za-z]+
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```
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## Functions
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All methods and classes take a final `loose` boolean argument that, if
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true, will be more forgiving about not-quite-valid semver strings.
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The resulting output will always be 100% strict, of course.
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All methods and classes take a final `options` object argument. All
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options in this object are `false` by default. The options supported
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are:
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- `loose` Be more forgiving about not-quite-valid semver strings.
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(Any resulting output will always be 100% strict compliant, of
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course.) For backwards compatibility reasons, if the `options`
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argument is a boolean value instead of an object, it is interpreted
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to be the `loose` param.
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- `includePrerelease` Set to suppress the [default
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behavior](https://github.com/npm/node-semver#prerelease-tags) of
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excluding prerelease tagged versions from ranges unless they are
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explicitly opted into.
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Strict-mode Comparators and Ranges will be strict about the SemVer
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strings that they parse.
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@@ -248,9 +326,15 @@ strings that they parse.
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same as `prepatch`. It increments the patch version, then makes a
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prerelease. If the input version is already a prerelease it simply
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increments it.
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* `prerelease(v)`: Returns an array of prerelease components, or null
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if none exist. Example: `prerelease('1.2.3-alpha.1') -> ['alpha', 1]`
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* `major(v)`: Return the major version number.
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* `minor(v)`: Return the minor version number.
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* `patch(v)`: Return the patch version number.
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* `intersects(r1, r2, loose)`: Return true if the two supplied ranges
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or comparators intersect.
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* `parse(v)`: Attempt to parse a string as a semantic version, returning either
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a `SemVer` object or `null`.
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### Comparison
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@@ -274,6 +358,9 @@ strings that they parse.
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(`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),
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or null if the versions are the same.
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### Comparators
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* `intersects(comparator)`: Return true if the comparators intersect
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### Ranges
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@@ -282,6 +369,10 @@ strings that they parse.
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range.
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* `maxSatisfying(versions, range)`: Return the highest version in the list
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that satisfies the range, or `null` if none of them do.
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* `minSatisfying(versions, range)`: Return the lowest version in the list
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that satisfies the range, or `null` if none of them do.
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* `minVersion(range)`: Return the lowest version that can possibly match
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the given range.
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* `gtr(version, range)`: Return `true` if version is greater than all the
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versions possible in the range.
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* `ltr(version, range)`: Return `true` if version is less than all the
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@@ -290,6 +381,7 @@ strings that they parse.
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the bounds of the range in either the high or low direction. The
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`hilo` argument must be either the string `'>'` or `'<'`. (This is
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the function called by `gtr` and `ltr`.)
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* `intersects(range)`: Return true if any of the ranges comparators intersect
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Note that, since ranges may be non-contiguous, a version might not be
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greater than a range, less than a range, *or* satisfy a range! For
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@@ -301,3 +393,20 @@ satisfy the range.
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If you want to know if a version satisfies or does not satisfy a
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range, use the `satisfies(version, range)` function.
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### Coercion
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* `coerce(version)`: Coerces a string to semver if possible
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This aims to provide a very forgiving translation of a non-semver string to
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semver. It looks for the first digit in a string, and consumes all
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remaining characters which satisfy at least a partial semver (e.g., `1`,
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`1.2`, `1.2.3`) up to the max permitted length (256 characters). Longer
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versions are simply truncated (`4.6.3.9.2-alpha2` becomes `4.6.3`). All
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surrounding text is simply ignored (`v3.4 replaces v3.3.1` becomes
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`3.4.0`). Only text which lacks digits will fail coercion (`version one`
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is not valid). The maximum length for any semver component considered for
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coercion is 16 characters; longer components will be ignored
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(`10000000000000000.4.7.4` becomes `4.7.4`). The maximum value for any
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semver component is `Number.MAX_SAFE_INTEGER || (2**53 - 1)`; higher value
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components are invalid (`9999999999999999.4.7.4` is likely invalid).
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