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node_modules/n8n-workflow/dist/cjs/extensions/expression-parser.js

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+(function (factory) {
+    if (typeof module === "object" && typeof module.exports === "object") {
+        var v = factory(require, exports);
+        if (v !== undefined) module.exports = v;
+    }
+    else if (typeof define === "function" && define.amd) {
+        define(["require", "exports"], factory);
+    }
+})(function (require, exports) {
+    "use strict";
+    Object.defineProperty(exports, "__esModule", { value: true });
+    exports.joinExpression = exports.splitExpression = exports.escapeCode = void 0;
+    const OPEN_BRACKET = /(?<escape>\\|)(?<brackets>\{\{)/;
+    const CLOSE_BRACKET = /(?<escape>\\|)(?<brackets>\}\})/;
+    const escapeCode = (text) => {
+        return text.replace('\\}}', '}}');
+    };
+    exports.escapeCode = escapeCode;
+    const splitExpression = (expression) => {
+        const chunks = [];
+        let searchingFor = 'open';
+        let activeRegex = OPEN_BRACKET;
+        let buffer = '';
+        let index = 0;
+        while (index < expression.length) {
+            const expr = expression.slice(index);
+            const res = activeRegex.exec(expr);
+            // No more brackets. If it's a closing bracket
+            // this is sort of valid so we accept it but mark
+            // that it has no closing bracket.
+            if (!res?.groups) {
+                buffer += expr;
+                if (searchingFor === 'open') {
+                    chunks.push({
+                        type: 'text',
+                        text: buffer,
+                    });
+                }
+                else {
+                    chunks.push({
+                        type: 'code',
+                        text: (0, exports.escapeCode)(buffer),
+                        hasClosingBrackets: false,
+                    });
+                }
+                break;
+            }
+            if (res.groups.escape) {
+                buffer += expr.slice(0, res.index + 3);
+                index += res.index + 3;
+            }
+            else {
+                buffer += expr.slice(0, res.index);
+                if (searchingFor === 'open') {
+                    chunks.push({
+                        type: 'text',
+                        text: buffer,
+                    });
+                    searchingFor = 'close';
+                    activeRegex = CLOSE_BRACKET;
+                }
+                else {
+                    chunks.push({
+                        type: 'code',
+                        text: (0, exports.escapeCode)(buffer),
+                        hasClosingBrackets: true,
+                    });
+                    searchingFor = 'open';
+                    activeRegex = OPEN_BRACKET;
+                }
+                index += res.index + 2;
+                buffer = '';
+            }
+        }
+        return chunks;
+    };
+    exports.splitExpression = splitExpression;
+    // Expressions only have closing brackets escaped
+    const escapeTmplExpression = (part) => {
+        return part.replace('}}', '\\}}');
+    };
+    const joinExpression = (parts) => {
+        return parts
+            .map((chunk) => {
+            if (chunk.type === 'code') {
+                return `{{${escapeTmplExpression(chunk.text)}${chunk.hasClosingBrackets ? '}}' : ''}`;
+            }
+            return chunk.text;
+        })
+            .join('');
+    };
+    exports.joinExpression = joinExpression;
+});
+//# sourceMappingURL=expression-parser.js.map