Adding forceformat option: format invalid output just like jsonlint.com

When using jsonlint.com, even invalid JSON is pretty printed. It seemed like a good option to have in the cli version as well. This is simply inserting the char-by-char formatter from https://github.com/umbrae/jsonlintdotcom and adding an option to cli.js.
2025-12-17 11:58:13 +08:00 · 2012-09-12 23:11:11 -05:00
parent 1d7ed8ab13
commit 92ac817d17
2 changed files with 130 additions and 7 deletions
--- a/lib/formatter.js
+++ b/lib/formatter.js
@@ -0,0 +1,92 @@
+#!/usr/bin/env node
+
+/**
+ * Manual formatter taken straight from https://github.com/umbrae/jsonlintdotcom
+**/
+
+/*jslint white: true, devel: true, onevar: true, browser: true, undef: true, nomen: true, regexp: true, plusplus: false, bitwise: true, newcap: true, maxerr: 50, indent: 4 */
+
+/**
+ * jsl.format - Provide json reformatting in a character-by-character approach, so that even invalid JSON may be reformatted (to the best of its ability).
+ *
+**/
+var formatter = (function () {
+
+    function repeat(s, count) {
+        return new Array(count + 1).join(s);
+    }
+
+    function formatJson(json, indentChars) {
+        var i           = 0,
+            il          = 0,
+            tab         = (typeof indentChars !== "undefined") ? indentChars : "    ",
+            newJson     = "",
+            indentLevel = 0,
+            inString    = false,
+            currentChar = null;
+
+        for (i = 0, il = json.length; i < il; i += 1) { 
+            currentChar = json.charAt(i);
+
+            switch (currentChar) {
+            case '{': 
+            case '[': 
+                if (!inString) { 
+                    newJson += currentChar + "\n" + repeat(tab, indentLevel + 1);
+                    indentLevel += 1; 
+                } else { 
+                    newJson += currentChar; 
+                }
+                break; 
+            case '}': 
+            case ']': 
+                if (!inString) { 
+                    indentLevel -= 1; 
+                    newJson += "\n" + repeat(tab, indentLevel) + currentChar; 
+                } else { 
+                    newJson += currentChar; 
+                } 
+                break; 
+            case ',': 
+                if (!inString) { 
+                    newJson += ",\n" + repeat(tab, indentLevel); 
+                } else { 
+                    newJson += currentChar; 
+                } 
+                break; 
+            case ':': 
+                if (!inString) { 
+                    newJson += ": "; 
+                } else { 
+                    newJson += currentChar; 
+                } 
+                break; 
+            case ' ':
+            case "\n":
+            case "\t":
+                if (inString) {
+                    newJson += currentChar;
+                }
+                break;
+            case '"': 
+                if (i > 0 && json.charAt(i - 1) !== '\\') {
+                    inString = !inString; 
+                }
+                newJson += currentChar; 
+                break;
+            default: 
+                newJson += currentChar; 
+                break;                    
+            } 
+        } 
+
+        return newJson; 
+    }
+
+    return { "formatJson": formatJson };
+
+}());
+
+if (typeof require !== 'undefined' && typeof exports !== 'undefined') {
+  exports.formatter = formatter;
+}