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node_modules/eslint-plugin-vue/lib/rules/no-multi-spaces.js

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+/**
+ * @fileoverview This rule warns about the usage of extra whitespaces between attributes
+ * @author Armano
+ */
+'use strict'
+
+const path = require('path')
+
+// ------------------------------------------------------------------------------
+// Rule Definition
+// ------------------------------------------------------------------------------
+
+/**
+ * @param {RuleContext} context
+ * @param {Token} node
+ */
+const isProperty = (context, node) => {
+  const sourceCode = context.getSourceCode()
+  return node.type === 'Punctuator' && sourceCode.getText(node) === ':'
+}
+
+module.exports = {
+  meta: {
+    type: 'layout',
+    docs: {
+      description: 'disallow multiple spaces',
+      categories: ['vue3-strongly-recommended', 'strongly-recommended'],
+      url: 'https://eslint.vuejs.org/rules/no-multi-spaces.html'
+    },
+    fixable: 'whitespace', // or "code" or "whitespace"
+    schema: [
+      {
+        type: 'object',
+        properties: {
+          ignoreProperties: {
+            type: 'boolean'
+          }
+        },
+        additionalProperties: false
+      }
+    ]
+  },
+
+  /**
+   * @param {RuleContext} context - The rule context.
+   * @returns {RuleListener} AST event handlers.
+   */
+  create(context) {
+    const options = context.options[0] || {}
+    const ignoreProperties = options.ignoreProperties === true
+
+    return {
+      Program(node) {
+        if (context.parserServices.getTemplateBodyTokenStore == null) {
+          const filename = context.getFilename()
+          if (path.extname(filename) === '.vue') {
+            context.report({
+              loc: { line: 1, column: 0 },
+              message:
+                'Use the latest vue-eslint-parser. See also https://eslint.vuejs.org/user-guide/#what-is-the-use-the-latest-vue-eslint-parser-error.'
+            })
+          }
+          return
+        }
+        if (!node.templateBody) {
+          return
+        }
+        const sourceCode = context.getSourceCode()
+        const tokenStore = context.parserServices.getTemplateBodyTokenStore()
+        const tokens = tokenStore.getTokens(node.templateBody, {
+          includeComments: true
+        })
+
+        let prevToken = /** @type {Token} */ (tokens.shift())
+        for (const token of tokens) {
+          const spaces = token.range[0] - prevToken.range[1]
+          const shouldIgnore =
+            ignoreProperties &&
+            (isProperty(context, token) || isProperty(context, prevToken))
+          if (
+            spaces > 1 &&
+            token.loc.start.line === prevToken.loc.start.line &&
+            !shouldIgnore
+          ) {
+            context.report({
+              node: token,
+              loc: {
+                start: prevToken.loc.end,
+                end: token.loc.start
+              },
+              message: "Multiple spaces found before '{{displayValue}}'.",
+              fix: (fixer) =>
+                fixer.replaceTextRange(
+                  [prevToken.range[1], token.range[0]],
+                  ' '
+                ),
+              data: {
+                displayValue: sourceCode.getText(token)
+              }
+            })
+          }
+          prevToken = token
+        }
+      }
+    }
+  }
+}