fix: parser should preserve inner quotes (#407)

Author: jly36963

lib/yargs-parser.ts

@@ -59,6 +59,9 @@ export class YargsParser {
     // allow a string argument to be passed in rather
     // than an argv array.
     const args = tokenizeArgString(argsInput)
+    // tokenizeArgString adds extra quotes to args if argsInput is a string
+    // only strip those extra quotes in processValue if argsInput is a string
+    const inputIsString = typeof argsInput === 'string'
 
     // aliases might have transitive relationships, normalize this.
     const aliases = combineAliases(Object.assign(Object.create(null), opts.alias))
@@ -243,7 +246,7 @@ export class YargsParser {
             // nargs format = '--f=monkey washing cat'
             i = eatNargs(i, m[1], args, m[2])
           } else {
-            setArg(m[1], m[2])
+            setArg(m[1], m[2], true)
           }
         }
       } else if (arg.match(negatedBoolean) && configuration['boolean-negation']) {
@@ -516,15 +519,15 @@ export class YargsParser {
       } else {
         // value in --option=value is eaten as is
         if (!isUndefined(argAfterEqualSign)) {
-          argsToSet.push(processValue(key, argAfterEqualSign))
+          argsToSet.push(processValue(key, argAfterEqualSign, true))
         }
         for (let ii = i + 1; ii < args.length; ii++) {
           if ((!configuration['greedy-arrays'] && argsToSet.length > 0) ||
             (nargsCount && typeof nargsCount === 'number' && argsToSet.length >= nargsCount)) break
           next = args[ii]
           if (/^-/.test(next) && !negative.test(next) && !isUnknownOptionAsArg(next)) break
           i = ii
-          argsToSet.push(processValue(key, next))
+          argsToSet.push(processValue(key, next, inputIsString))
         }
       }
 
@@ -540,15 +543,15 @@ export class YargsParser {
       return i
     }
 
-    function setArg (key: string, val: any): void {
+    function setArg (key: string, val: any, shouldStripQuotes: boolean = inputIsString): void {
       if (/-/.test(key) && configuration['camel-case-expansion']) {
         const alias = key.split('.').map(function (prop) {
           return camelCase(prop)
         }).join('.')
         addNewAlias(key, alias)
       }
 
-      const value = processValue(key, val)
+      const value = processValue(key, val, shouldStripQuotes)
       const splitKey = key.split('.')
       setKey(argv, splitKey, value)
 
@@ -605,13 +608,10 @@ export class YargsParser {
       }
     }
 
-    function processValue (key: string, val: any) {
+    function processValue (key: string, val: any, shouldStripQuotes: boolean) {
       // strings may be quoted, clean this up as we assign values.
-      if (typeof val === 'string' &&
-        (val[0] === "'" || val[0] === '"') &&
-        val[val.length - 1] === val[0]
-      ) {
-        val = val.substring(1, val.length - 1)
+      if (shouldStripQuotes) {
+        val = stripQuotes(val)
       }
 
       // handle parsing boolean arguments --foo=true --bar false.
@@ -1116,3 +1116,13 @@ function sanitizeKey (key: string): string {
   if (key === '__proto__') return '___proto___'
   return key
 }
+
+function stripQuotes (val: string): string {
+  return (
+    typeof val === 'string' &&
+    (val[0] === "'" || val[0] === '"') &&
+    val[val.length - 1] === val[0]
+  )
+    ? val.substring(1, val.length - 1)
+    : val
+}

test/yargs-parser.cjs

@@ -3569,7 +3569,7 @@ describe('yargs-parser', function () {
       args.foo.should.equal('hello world')
       args.bar.should.equal('goodnight\'moon')
       const args2 = parser(['--foo', '"hello world"', '--bar="goodnight\'moon"'])
-      args2.foo.should.equal('hello world')
+      args2.foo.should.equal('"hello world"')
       args2.bar.should.equal('goodnight\'moon')
     })
 
@@ -3578,7 +3578,7 @@ describe('yargs-parser', function () {
       args.foo.should.equal('hello world')
       args.bar.should.equal('goodnight"moon')
       const args2 = parser(['--foo', "'hello world'", "--bar='goodnight\"moon'"])
-      args2.foo.should.equal('hello world')
+      args2.foo.should.equal("'hello world'")
       args2.bar.should.equal('goodnight"moon')
     })
 
@@ -3587,6 +3587,20 @@ describe('yargs-parser', function () {
       args.foo.should.equal('-hello world')
       args.bar.should.equal('--goodnight moon')
     })
+
+    it('respects inner quotes (string)', function () {
+      const args = parser('cmd --foo ""Hello"" --bar ""World"" --baz="":)""')
+      args.foo.should.equal('"Hello"')
+      args.bar.should.equal('"World"')
+      args.baz.should.equal('":)"')
+    })
+
+    it('respects inner quotes (array)', function () {
+      const args = parser(['cmd', '--foo', '"Hello"', '--bar', '"World"', '--baz="":)""'])
+      args.foo.should.equal('"Hello"')
+      args.bar.should.equal('"World"')
+      args.baz.should.equal('":)"')
+    })
   })
 
   // see: https://github.com/yargs/yargs-parser/issues/144