Index: imaps-frontend/node_modules/es-module-lexer/README.md
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+# ES Module Lexer
+
+[![Build Status][actions-image]][actions-url]
+
+A JS module syntax lexer used in [es-module-shims](https://github.com/guybedford/es-module-shims).
+
+Outputs the list of exports and locations of import specifiers, including dynamic import and import meta handling.
+
+Supports new syntax features including import attributes and source phase imports.
+
+A very small single JS file (4KiB gzipped) that includes inlined Web Assembly for very fast source analysis of ECMAScript module syntax only.
+
+For an example of the performance, Angular 1 (720KiB) is fully parsed in 5ms, in comparison to the fastest JS parser, Acorn which takes over 100ms.
+
+_Comprehensively handles the JS language grammar while remaining small and fast. - ~10ms per MB of JS cold and ~5ms per MB of JS warm, [see benchmarks](#benchmarks) for more info._
+
+> [Built with](https://github.com/guybedford/es-module-lexer/blob/main/chompfile.toml) [Chomp](https://chompbuild.com/)
+
+### Usage
+
+```
+npm install es-module-lexer
+```
+
+See [src/lexer.ts](src/lexer.ts) for the type definitions.
+
+For use in CommonJS:
+
+```js
+const { init, parse } = require('es-module-lexer');
+
+(async () => {
+  // either await init, or call parse asynchronously
+  // this is necessary for the Web Assembly boot
+  await init;
+
+  const source = 'export var p = 5';
+  const [imports, exports] = parse(source);
+  
+  // Returns "p"
+  source.slice(exports[0].s, exports[0].e);
+  // Returns "p"
+  source.slice(exports[0].ls, exports[0].le);
+})();
+```
+
+An ES module version is also available:
+
+```js
+import { init, parse } from 'es-module-lexer';
+
+(async () => {
+  await init;
+
+  const source = `
+    import { name } from 'mod\\u1011';
+    import json from './json.json' assert { type: 'json' }
+    export var p = 5;
+    export function q () {
+
+    };
+    export { x as 'external name' } from 'external';
+
+    // Comments provided to demonstrate edge cases
+    import /*comment!*/ (  'asdf', { assert: { type: 'json' }});
+    import /*comment!*/.meta.asdf;
+
+    // Source phase imports:
+    import source mod from './mod.wasm';
+    import.source('./mod.wasm');
+  `;
+
+  const [imports, exports] = parse(source, 'optional-sourcename');
+
+  // Returns "modထ"
+  imports[0].n
+  // Returns "mod\u1011"
+  source.slice(imports[0].s, imports[0].e);
+  // "s" = start
+  // "e" = end
+
+  // Returns "import { name } from 'mod'"
+  source.slice(imports[0].ss, imports[0].se);
+  // "ss" = statement start
+  // "se" = statement end
+
+  // Returns "{ type: 'json' }"
+  source.slice(imports[1].a, imports[1].se);
+  // "a" = assert, -1 for no assertion
+
+  // Returns "external"
+  source.slice(imports[2].s, imports[2].e);
+
+  // Returns "p"
+  source.slice(exports[0].s, exports[0].e);
+  // Returns "p"
+  source.slice(exports[0].ls, exports[0].le);
+  // Returns "q"
+  source.slice(exports[1].s, exports[1].e);
+  // Returns "q"
+  source.slice(exports[1].ls, exports[1].le);
+  // Returns "'external name'"
+  source.slice(exports[2].s, exports[2].e);
+  // Returns -1
+  exports[2].ls;
+  // Returns -1
+  exports[2].le;
+
+  // Import type is provided by `t` value
+  // (1 for static, 2, for dynamic)
+  // Returns true
+  imports[2].t == 2;
+
+  // Returns "asdf" (only for string literal dynamic imports)
+  imports[2].n
+  // Returns "import /*comment!*/ (  'asdf', { assert: { type: 'json' } })"
+  source.slice(imports[3].ss, imports[3].se);
+  // Returns "'asdf'"
+  source.slice(imports[3].s, imports[3].e);
+  // Returns "(  'asdf', { assert: { type: 'json' } })"
+  source.slice(imports[3].d, imports[3].se);
+  // Returns "{ assert: { type: 'json' } }"
+  source.slice(imports[3].a, imports[3].se - 1);
+
+  // For non-string dynamic import expressions:
+  // - n will be undefined
+  // - a is currently -1 even if there is an assertion
+  // - e is currently the character before the closing )
+
+  // For nested dynamic imports, the se value of the outer import is -1 as end tracking does not
+  // currently support nested dynamic immports
+
+  // import.meta is indicated by imports[3].d === -2
+  // Returns true
+  imports[4].d === -2;
+  // Returns "import /*comment!*/.meta"
+  source.slice(imports[4].s, imports[4].e);
+  // ss and se are the same for import meta
+
+  // Returns "'./mod.wasm'"
+  source.slice(imports[5].s, imports[5].e);
+
+  // Import type 4 and 5 for static and dynamic source phase
+  imports[5].t === 4;
+  imports[6].t === 5;
+})();
+```
+
+### CSP asm.js Build
+
+The default version of the library uses Wasm and (safe) eval usage for performance and a minimal footprint.
+
+Neither of these represent security escalation possibilities since there are no execution string injection vectors, but that can still violate existing CSP policies for applications.
+
+For a version that works with CSP eval disabled, use the `es-module-lexer/js` build:
+
+```js
+import { parse } from 'es-module-lexer/js';
+```
+
+Instead of Web Assembly, this uses an asm.js build which is almost as fast as the Wasm version ([see benchmarks below](#benchmarks)).
+
+### Escape Sequences
+
+To handle escape sequences in specifier strings, the `.n` field of imported specifiers will be provided where possible.
+
+For dynamic import expressions, this field will be empty if not a valid JS string.
+
+### Facade Detection
+
+Facade modules that only use import / export syntax can be detected via the third return value:
+
+```js
+const [,, facade] = parse(`
+  export * from 'external';
+  import * as ns from 'external2';
+  export { a as b } from 'external3';
+  export { ns };
+`);
+facade === true;
+```
+
+### ESM Detection
+
+Modules that uses ESM syntaxes can be detected via the fourth return value:
+
+```js
+const [,,, hasModuleSyntax] = parse(`
+  export {}
+`);
+hasModuleSyntax === true;
+```
+
+Dynamic imports are ignored since they can be used in Non-ESM files.
+
+```js
+const [,,, hasModuleSyntax] = parse(`
+  import('./foo.js')
+`);
+hasModuleSyntax === false;
+```
+
+### Environment Support
+
+Node.js 10+, and [all browsers with Web Assembly support](https://caniuse.com/#feat=wasm).
+
+### Grammar Support
+
+* Token state parses all line comments, block comments, strings, template strings, blocks, parens and punctuators.
+* Division operator / regex token ambiguity is handled via backtracking checks against punctuator prefixes, including closing brace or paren backtracking.
+* Always correctly parses valid JS source, but may parse invalid JS source without errors.
+
+### Limitations
+
+The lexing approach is designed to deal with the full language grammar including RegEx / division operator ambiguity through backtracking and paren / brace tracking.
+
+The only limitation to the reduced parser is that the "exports" list may not correctly gather all export identifiers in the following edge cases:
+
+```js
+// Only "a" is detected as an export, "q" isn't
+export var a = 'asdf', q = z;
+
+// "b" is not detected as an export
+export var { a: b } = asdf;
+```
+
+The above cases are handled gracefully in that the lexer will keep going fine, it will just not properly detect the export names above.
+
+### Benchmarks
+
+Benchmarks can be run with `npm run bench`.
+
+Current results for a high spec machine:
+
+#### Wasm Build
+
+```
+Module load time
+> 5ms
+Cold Run, All Samples
+test/samples/*.js (3123 KiB)
+> 18ms
+
+Warm Runs (average of 25 runs)
+test/samples/angular.js (739 KiB)
+> 3ms
+test/samples/angular.min.js (188 KiB)
+> 1ms
+test/samples/d3.js (508 KiB)
+> 3ms
+test/samples/d3.min.js (274 KiB)
+> 2ms
+test/samples/magic-string.js (35 KiB)
+> 0ms
+test/samples/magic-string.min.js (20 KiB)
+> 0ms
+test/samples/rollup.js (929 KiB)
+> 4.32ms
+test/samples/rollup.min.js (429 KiB)
+> 2.16ms
+
+Warm Runs, All Samples (average of 25 runs)
+test/samples/*.js (3123 KiB)
+> 14.16ms
+```
+
+#### JS Build (asm.js)
+
+```
+Module load time
+> 2ms
+Cold Run, All Samples
+test/samples/*.js (3123 KiB)
+> 34ms
+
+Warm Runs (average of 25 runs)
+test/samples/angular.js (739 KiB)
+> 3ms
+test/samples/angular.min.js (188 KiB)
+> 1ms
+test/samples/d3.js (508 KiB)
+> 3ms
+test/samples/d3.min.js (274 KiB)
+> 2ms
+test/samples/magic-string.js (35 KiB)
+> 0ms
+test/samples/magic-string.min.js (20 KiB)
+> 0ms
+test/samples/rollup.js (929 KiB)
+> 5ms
+test/samples/rollup.min.js (429 KiB)
+> 3.04ms
+
+Warm Runs, All Samples (average of 25 runs)
+test/samples/*.js (3123 KiB)
+> 17.12ms
+```
+
+### Building
+
+This project uses [Chomp](https://chompbuild.com) for building.
+
+With Chomp installed, download the WASI SDK 12.0 from https://github.com/WebAssembly/wasi-sdk/releases/tag/wasi-sdk-12.
+
+- [Linux](https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-12/wasi-sdk-12.0-linux.tar.gz)
+- [Windows (MinGW)](https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-12/wasi-sdk-12.0-mingw.tar.gz)
+- [macOS](https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-12/wasi-sdk-12.0-macos.tar.gz)
+
+Locate the WASI-SDK as a sibling folder, or customize the path via the `WASI_PATH` environment variable.
+
+Emscripten emsdk is also assumed to be a sibling folder or via the `EMSDK_PATH` environment variable.
+
+Example setup:
+
+```
+git clone https://github.com:guybedford/es-module-lexer
+git clone https://github.com/emscripten-core/emsdk
+cd emsdk
+git checkout 1.40.1-fastcomp
+./emsdk install 1.40.1-fastcomp
+cd ..
+wget https://github.com/WebAssembly/wasi-sdk/releases/download/wasi-sdk-12/wasi-sdk-12.0-linux.tar.gz
+gunzip wasi-sdk-12.0-linux.tar.gz
+tar -xf wasi-sdk-12.0-linux.tar
+mv wasi-sdk-12.0-linux.tar wasi-sdk-12.0
+cargo install chompbuild
+cd es-module-lexer
+chomp test
+```
+
+For the `asm.js` build, git clone `emsdk` from  is assumed to be a sibling folder as well.
+
+### License
+
+MIT
+
+[actions-image]: https://github.com/guybedford/es-module-lexer/actions/workflows/build.yml/badge.svg
+[actions-url]: https://github.com/guybedford/es-module-lexer/actions/workflows/build.yml
