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fast-xml-builder - npm Package Compare versions

Comparing version
1.3.0
 to
1.3.1
+3
-0
CHANGELOG.md
**1.3.1** (2026-08-14)
- fix: preserve negative sign for zero (By [rajanpanth](https://github.com/rajanpanth))
**1.3.0** (2026-07-11)

@@ -3,0 +6,0 @@ - upgrade:

+1
-1
lib/fxb.cjs

@@ -1,1 +0,1 @@

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t}const E={attributeNamePrefix:"@_",attributesGroupName:!1,textNodeName:"#text",ignoreAttributes:!0,cdataPropName:!1,format:!1,indentBy:" ",suppressEmptyNode:!1,suppressUnpairedNode:!0,suppressBooleanAttributes:!0,tagValueProcessor:function(t,e){return e},attributeValueProcessor:function(t,e){return e},preserveOrder:!1,commentPropName:!1,unpairedTags:[],entities:[{regex:new RegExp("&","g"),val:"&amp;"},{regex:new RegExp(">","g"),val:"&gt;"},{regex:new RegExp("<","g"),val:"&lt;"},{regex:new RegExp("'","g"),val:"&apos;"},{regex:new RegExp('"',"g"),val:"&quot;"}],processEntities:!0,stopNodes:[],oneListGroup:!1,maxNestedTags:100,jPath:!0,sanitizeName:!1};function O(t){if(this.options=Object.assign({},E,t),this.options.stopNodes&&Array.isArray(this.options.stopNodes)&&(this.options.stopNodes=this.options.stopNodes.map(t=>"string"==typeof t&&t.startsWith("*.")?".."+t.substring(2):t)),this.stopNodeExpressions=[],this.options.stopNodes&&Array.isArray(this.options.stopNodes))for(let t=0;t<this.options.stopNodes.length;t++){const e=this.options.stopNodes[t];"string"==typeof e?this.stopNodeExpressions.push(new s(e)):e instanceof s&&this.stopNodeExpressions.push(e)}var e;!0===this.options.ignoreAttributes||this.options.attributesGroupName?this.isAttribute=function(){return!1}:(this.ignoreAttributesFn="function"==typeof(e=this.options.ignoreAttributes)?e:Array.isArray(e)?t=>{for(const s of e){if("string"==typeof s&&t===s)return!0;if(s instanceof RegExp&&s.test(t))return!0}}:()=>!1,this.attrPrefixLen=this.options.attributeNamePrefix.length,this.isAttribute=T),this.processTextOrObjNode=j,this.options.format?(this.indentate=k,this.tagEndChar=">\n",this.newLine="\n"):(this.indentate=function(){return""},this.tagEndChar=">",this.newLine="")}function C(t,e,s,i,n){return s.sanitizeName?n(t)?t:s.sanitizeName(t,{isAttribute:e,matcher:i.readOnly()}):t}function j(t,e,s,i,n){const r=this.extractAttributes(t);if(i.push(e,r),this.checkStopNode(i)){const 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Date)r+=this.buildTextValNode(t[h],p,"",e,s);else if("object"!=typeof t[h]){const u=this.isAttribute(h);if(u&&!this.ignoreAttributesFn(u,o)){const e=C(u,!0,this.options,s,i);n+=this.buildAttrPairStr(e,""+t[h],a)}else if(!u)if(h===this.options.textNodeName){let e=this.options.tagValueProcessor(h,""+t[h]);r+=this.replaceEntitiesValue(e)}else{s.push(p);const i=this.checkStopNode(s);if(s.pop(),i){const s=""+t[h];r+=""===s?this.indentate(e)+"<"+p+this.closeTag(p)+this.tagEndChar:this.indentate(e)+"<"+p+">"+s+"</"+p+this.tagEndChar}else r+=this.buildTextValNode(t[h],p,"",e,s)}}else if(Array.isArray(t[h])){const n=t[h].length;let o="",a="";for(let u=0;u<n;u++){const n=t[h][u];if(void 0===n);else if(null===n)"?"===p[0]?r+=this.indentate(e)+"<"+p+"?"+this.tagEndChar:r+=this.indentate(e)+"<"+p+"/"+this.tagEndChar;else if("object"==typeof n)if(this.options.oneListGroup){s.push(p);const 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n=this.buildRawContent(t),r=this.buildAttributesForStopNode(t);return i.pop(),this.buildObjectNode(n,e,r,s)}const o=this.j2x(t,s+1,i,n);return i.pop(),"?"===e[0]?this.buildTextValNode("",e,o.attrStr,s,i):void 0!==t[this.options.textNodeName]&&1===Object.keys(t).length?this.buildTextValNode(t[this.options.textNodeName],e,o.attrStr,s,i):this.buildObjectNode(o.val,e,o.attrStr,s)}function T(t){return this.options.indentBy.repeat(t)}function V(t){return!(!t.startsWith(this.options.attributeNamePrefix)||t===this.options.textNodeName)&&t.substr(this.attrPrefixLen)}C.prototype.build=function(t){if(this.options.preserveOrder)return x(t,this.options);{Array.isArray(t)&&this.options.arrayNodeName&&this.options.arrayNodeName.length>1&&(t={[this.options.arrayNodeName]:t});const e=new n,s=function(t,e){const s=t["?xml"];if(s&&"object"==typeof s){if(e.attributesGroupName&&s[e.attributesGroupName]){const t=s[e.attributesGroupName][e.attributeNamePrefix+"version"];if(t)return t}const t=s[e.attributeNamePrefix+"version"];if(t)return t}return"1.0"}(t,this.options),i=b("qName",{xmlVersion:s});return this.j2x(t,0,e,i).val}},C.prototype.j2x=function(t,e,s,i){let n="",o="";if(this.options.maxNestedTags&&s.getDepth()>=this.options.maxNestedTags)throw new Error("Maximum nested tags exceeded");const a=this.options.jPath?s.toString():s,h=this.checkStopNode(s);for(let p in t){if(!Object.prototype.hasOwnProperty.call(t,p))continue;const u=p===this.options.textNodeName||p===this.options.cdataPropName||p===this.options.commentPropName||this.options.attributesGroupName&&p===this.options.attributesGroupName||this.isAttribute(p)||"?"===p[0]?p:j(p,!1,this.options,s,i);if(void 0===t[p])this.isAttribute(p)&&(o+="");else if(null===t[p])this.isAttribute(p)||u===this.options.cdataPropName||u===this.options.commentPropName?o+="":"?"===u[0]?o+=this.indentate(e)+"<"+u+"?"+this.tagEndChar:o+=this.indentate(e)+"<"+u+"/"+this.tagEndChar;else if(t[p]instanceof 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t=this.j2x(n,e+1,s,i);s.pop(),a+=t.val,this.options.attributesGroupName&&n.hasOwnProperty(this.options.attributesGroupName)&&(h+=t.attrStr)}else a+=this.processTextOrObjNode(n,u,e,s,i);else if(this.options.oneListGroup){let t=this.options.tagValueProcessor(u,n);t=this.replaceEntitiesValue(t),t=r(t),a+=t}else{s.push(u);const t=this.checkStopNode(s);if(s.pop(),t){const t=r(n);a+=""===t?this.indentate(e)+"<"+u+this.closeTag(u)+this.tagEndChar:this.indentate(e)+"<"+u+">"+t+"</"+u+this.tagEndChar}else a+=this.buildTextValNode(n,u,"",e,s)}}this.options.oneListGroup&&(a=this.buildObjectNode(a,u,h,e)),o+=a}else if(this.options.attributesGroupName&&p===this.options.attributesGroupName){const e=Object.keys(t[p]),o=e.length;for(let a=0;a<o;a++){const o=j(e[a],!0,this.options,s,i);n+=this.buildAttrPairStr(o,r(t[p][e[a]]),h)}}else o+=this.processTextOrObjNode(t[p],u,e,s,i)}return{attrStr:n,val:o}},C.prototype.buildAttrPairStr=function(t,e,s){return s||(e=this.options.attributeValueProcessor(t,r(e)),e=this.replaceEntitiesValue(e)),this.options.suppressBooleanAttributes&&"true"===e?" 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+1
-1
lib/fxb.min.js

@@ -1,2 +0,2 @@

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r=0,i="";for(;r<t.length;)t[r]===this.separator?r+1<t.length&&t[r+1]===this.separator?(i.trim()&&(e.push(this._parseSegment(i.trim())),i=""),e.push({type:"deep-wildcard"}),r+=2):(i.trim()&&e.push(this._parseSegment(i.trim())),i="",r++):(i+=t[r],r++);return i.trim()&&e.push(this._parseSegment(i.trim())),e}_parseSegment(t){const e={type:"tag"};let r=null,i=t;const s=t.match(/^([^\[]+)(\[[^\]]*\])(.*)$/);if(s&&(i=s[1]+s[3],s[2])){const t=s[2].slice(1,-1);t&&(r=t)}let n,a,o=i;if(i.includes("::")){const e=i.indexOf("::");if(n=i.substring(0,e).trim(),o=i.substring(e+2).trim(),!n)throw new Error(`Invalid namespace in pattern: ${t}`)}let h=null;if(o.includes(":")){const t=o.lastIndexOf(":"),e=o.substring(0,t).trim(),r=o.substring(t+1).trim();["first","last","odd","even"].includes(r)||/^nth\(\d+\)$/.test(r)?(a=e,h=r):a=o}else a=o;if(!a)throw new Error(`Invalid segment pattern: ${t}`);if(e.tag=a,n&&(e.namespace=n),r)if(r.includes("=")){const 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g=n(t[p]);a+=""===g?this.indentate(e)+"<"+u+this.closeTag(u)+this.tagEndChar:this.indentate(e)+"<"+u+">"+g+"</"+u+this.tagEndChar}else a+=this.buildTextValNode(t[p],u,"",e,r)}}else if(Array.isArray(t[p])){for(var m=t[p].length,b="",v="",N=0;N<m;N++){var y=t[p][N];if(void 0===y);else if(null===y)"?"===u[0]?a+=this.indentate(e)+"<"+u+"?"+this.tagEndChar:a+=this.indentate(e)+"<"+u+"/"+this.tagEndChar;else if("object"==typeof y)if(this.options.oneListGroup){r.push(u);var A=this.j2x(y,e+1,r,i);r.pop(),b+=A.val,this.options.attributesGroupName&&y.hasOwnProperty(this.options.attributesGroupName)&&(v+=A.attrStr)}else b+=this.processTextOrObjNode(y,u,e,r,i);else if(this.options.oneListGroup){var x=this.options.tagValueProcessor(u,y);b+=x=n(x=this.replaceEntitiesValue(x))}else{r.push(u);var P=this.checkStopNode(r);if(r.pop(),P){var S=n(y);b+=""===S?this.indentate(e)+"<"+u+this.closeTag(u)+this.tagEndChar:this.indentate(e)+"<"+u+">"+S+"</"+u+this.tagEndChar}else b+=this.buildTextValNode(y,u,"",e,r)}}this.options.oneListGroup&&(b=this.buildObjectNode(b,u,v,e)),a+=b}else if(this.options.attributesGroupName&&p===this.options.attributesGroupName)for(var _=Object.keys(t[p]),w=_.length,O=0;O<w;O++){var E=V(_[O],!0,this.options,r,i);s+=this.buildAttrPairStr(E,n(t[p][_[O]]),h)}else a+=this.processTextOrObjNode(t[p],u,e,r,i)}return{attrStr:s,val:a}},$.prototype.buildAttrPairStr=function(t,e,r){return r||(e=this.options.attributeValueProcessor(t,n(e)),e=this.replaceEntitiesValue(e)),this.options.suppressBooleanAttributes&&"true"===e?" "+t:" "+t+'="'+h(e)+'"'},$.prototype.extractAttributes=function(t){if(!t||"object"!=typeof t)return null;var e={},r=!1;if(this.options.attributesGroupName&&t[this.options.attributesGroupName]){var i=t[this.options.attributesGroupName];for(var s in i)Object.prototype.hasOwnProperty.call(i,s)&&(e[s.startsWith(this.options.attributeNamePrefix)?s.substring(this.options.attributeNamePrefix.length):s]=h(i[s]),r=!0)}else for(var n in t)if(Object.prototype.hasOwnProperty.call(t,n)){var a=this.isAttribute(n);a&&(e[a]=h(t[n]),r=!0)}return r?e:null},$.prototype.buildRawContent=function(t){if("string"==typeof t)return t;if("object"!=typeof t||null===t)return String(t);if(void 0!==t[this.options.textNodeName])return t[this.options.textNodeName];var e="";for(var r in t)if(Object.prototype.hasOwnProperty.call(t,r)&&!(this.isAttribute(r)||this.options.attributesGroupName&&r===this.options.attributesGroupName)){var i=t[r];if(r===this.options.textNodeName)e+=i;else if(Array.isArray(i))for(var s,n=C(i);!(s=n()).done;){var a=s.value;if("string"==typeof a||"number"==typeof a)e+="<"+r+">"+a+"</"+r+">";else if("object"==typeof a&&null!==a){var o=this.buildRawContent(a),h=this.buildAttributesForStopNode(a);e+=""===o?"<"+r+h+"/>":"<"+r+h+">"+o+"</"+r+">"}}else if("object"==typeof i&&null!==i){var p=this.buildRawContent(i),u=this.buildAttributesForStopNode(i);e+=""===p?"<"+r+u+"/>":"<"+r+u+">"+p+"</"+r+">"}else e+="<"+r+">"+i+"</"+r+">"}return e},$.prototype.buildAttributesForStopNode=function(t){if(!t||"object"!=typeof t)return"";var e="";if(this.options.attributesGroupName&&t[this.options.attributesGroupName]){var r=t[this.options.attributesGroupName];for(var i in r)if(Object.prototype.hasOwnProperty.call(r,i)){var s=i.startsWith(this.options.attributeNamePrefix)?i.substring(this.options.attributeNamePrefix.length):i,n=r[i];!0===n&&this.options.suppressBooleanAttributes?e+=" "+s:e+=" "+s+'="'+h(n)+'"'}}else for(var a in t)if(Object.prototype.hasOwnProperty.call(t,a)){var o=this.isAttribute(a);if(o){var p=t[a];!0===p&&this.options.suppressBooleanAttributes?e+=" "+o:e+=" "+o+'="'+h(p)+'"'}}return e},$.prototype.buildObjectNode=function(t,e,r,i){if(""===t)return"?"===e[0]?this.indentate(i)+"<"+e+r+"?"+this.tagEndChar:this.indentate(i)+"<"+e+r+this.closeTag(e)+this.tagEndChar;if("?"===e[0])return this.indentate(i)+"<"+e+r+"?"+this.tagEndChar;var s="</"+e+this.tagEndChar,n="";return"?"===e[0]&&(n="?",s=""),!r&&""!==r||-1!==t.indexOf("<")?!1!==this.options.commentPropName&&e===this.options.commentPropName&&0===n.length?this.indentate(i)+"\x3c!--"+a(t)+"--\x3e"+this.newLine:this.indentate(i)+"<"+e+r+n+this.tagEndChar+t+this.indentate(i)+s:this.indentate(i)+"<"+e+r+n+">"+t+s},$.prototype.closeTag=function(t){var e="";return-1!==this.options.unpairedTags.indexOf(t)?this.options.suppressUnpairedNode||(e="/"):e=this.options.suppressEmptyNode?"/":"></"+t,e},$.prototype.checkStopNode=function(t){if(!this.stopNodeExpressions||0===this.stopNodeExpressions.length)return!1;for(var e=0;e<this.stopNodeExpressions.length;e++)if(t.matches(this.stopNodeExpressions[e]))return!0;return!1},$.prototype.buildTextValNode=function(t,e,r,i,s){if(!1!==this.options.cdataPropName&&e===this.options.cdataPropName){var h=o(t);return this.indentate(i)+"<![CDATA["+h+"]]>"+this.newLine}if(!1!==this.options.commentPropName&&e===this.options.commentPropName){var p=a(t);return this.indentate(i)+"\x3c!--"+p+"--\x3e"+this.newLine}if("?"===e[0])return this.indentate(i)+"<"+e+r+"?"+this.tagEndChar;var u=this.options.tagValueProcessor(e,t);return""===(u=n(u=this.replaceEntitiesValue(u)))?this.indentate(i)+"<"+e+r+this.closeTag(e)+this.tagEndChar:this.indentate(i)+"<"+e+r+">"+u+"</"+e+this.tagEndChar},$.prototype.replaceEntitiesValue=function(t){if(t&&t.length>0&&this.options.processEntities)for(var e=0;e<this.options.entities.length;e++){var r=this.options.entities[e];t=t.replace(r.regex,r.val)}return t},e})());
//# sourceMappingURL=fxb.min.js.map
+2
-6
package.json
{
"name": "fast-xml-builder",
"version": "1.3.0",
"version": "1.3.1",
"description": "Build XML from JSON without C/C++ based libraries",

@@ -28,6 +28,3 @@ "main": "./lib/fxb.cjs",

"bundle": "webpack --config webpack.cjs.config.js",
"prettier": "prettier --write src/**/*.js",
"checkReadiness": "publish-please --dry-run",
"publish-please": "publish-please",
"prepublishOnly": "publish-please guard"
"prettier": "prettier --write src/**/*.js"
},

@@ -67,3 +64,2 @@ "files": [

"prettier": "^3.5.1",
"publish-please": "^5.5.2",
"typescript": "5",

@@ -70,0 +66,0 @@ "webpack": "^5.64.4",

+12
-7
src/fxb.js

@@ -6,3 +6,3 @@ 'use strict';

import { Expression, Matcher } from 'path-expression-matcher';
import { safeComment, safeCdata, escapeAttribute } from './util.js';
import { safeComment, safeCdata, escapeAttribute, valToStr } from './util.js';
import { createValidator } from 'xml-naming';

@@ -213,7 +213,7 @@

const resolvedAttr = resolveTagName(attr, true, this.options, matcher, qNameValidator);
attrStr += this.buildAttrPairStr(resolvedAttr, '' + jObj[key], isCurrentStopNode);
attrStr += this.buildAttrPairStr(resolvedAttr, valToStr(jObj[key]), isCurrentStopNode);
} else if (!attr) {
//tag value
if (key === this.options.textNodeName) {
let newval = this.options.tagValueProcessor(key, '' + jObj[key]);
let newval = this.options.tagValueProcessor(key, valToStr(jObj[key]));
val += this.replaceEntitiesValue(newval);

@@ -228,3 +228,3 @@ } else {

// Build as raw content without encoding
const textValue = '' + jObj[key];
const textValue = valToStr(jObj[key]);
if (textValue === '') {

@@ -271,2 +271,3 @@ val += this.indentate(level) + '<' + resolvedKey + this.closeTag(resolvedKey) + this.tagEndChar;

textValue = this.replaceEntitiesValue(textValue);
textValue = valToStr(textValue);
listTagVal += textValue;

@@ -281,3 +282,3 @@ } else {

// Build as raw content without encoding
const textValue = '' + item;
const textValue = valToStr(item);
if (textValue === '') {

@@ -306,3 +307,3 @@ listTagVal += this.indentate(level) + '<' + resolvedKey + this.closeTag(resolvedKey) + this.tagEndChar;

const resolvedAttr = resolveTagName(Ks[j], true, this.options, matcher, qNameValidator);
attrStr += this.buildAttrPairStr(resolvedAttr, '' + jObj[key][Ks[j]], isCurrentStopNode);
attrStr += this.buildAttrPairStr(resolvedAttr, valToStr(jObj[key][Ks[j]]), isCurrentStopNode);
}

@@ -319,3 +320,3 @@ } else {

if (!isStopNode) {
val = this.options.attributeValueProcessor(attrName, '' + val);
val = this.options.attributeValueProcessor(attrName, valToStr(val));
val = this.replaceEntitiesValue(val);

@@ -580,2 +581,6 @@ }

textValue = this.replaceEntitiesValue(textValue);
// tagValueProcessor may return the raw value unchanged (default is identity), and
// replaceEntitiesValue no-ops on non-strings, so a plain number can still reach here;
// stringify it now, sign-preserving, before it's implicitly ToString'd below.
textValue = valToStr(textValue);

@@ -582,0 +587,0 @@ if (textValue === '') {

+5
-4
src/orderedJs2Xml.js
import { Expression, Matcher } from 'path-expression-matcher';
import { safeComment, safeCdata, escapeAttribute } from "./util.js";
import { safeComment, safeCdata, escapeAttribute, valToStr } from "./util.js";
import { createValidator } from 'xml-naming';

@@ -91,3 +91,3 @@

if (arr !== undefined && arr !== null) {
let text = arr.toString();
let text = valToStr(arr);
text = replaceEntitiesValue(text, options);

@@ -131,2 +131,3 @@ return text;

}
tagText = valToStr(tagText);
if (isPreviousElementTag) {

@@ -240,3 +241,3 @@ xmlStr += indentation;

if (arr !== undefined && arr !== null) {
return arr.toString();
return valToStr(arr);
}

@@ -253,3 +254,3 @@ return "";

// Raw text content - NO processing, NO entity replacement
content += item[tagName];
content += valToStr(item[tagName]);
} else if (tagName === options.cdataPropName) {

@@ -256,0 +257,0 @@ // CDATA content

+10
-3
src/util.js
// String(val)/val.toString() drop the sign of -0 (e.g. String(-0) === '0'), silently
// corrupting a round-tripped negative-zero value. XML has no separate int/float syntax,
// so this is the single place every raw value gets turned into text.
export function valToStr(val) {
return typeof val === 'number' && Object.is(val, -0) ? '-0' : String(val)
}
export function safeComment(val) {
return String(val)
return valToStr(val)
.replace(/--/g, '- -') // -- is illegal anywhere in comment content

@@ -11,7 +18,7 @@ .replace(/--/g, '- -') // handle the scenario when 2 consiucative dashes appears

export function safeCdata(val) {
return String(val).replace(/\]\]>/g, ']]]]><![CDATA[>')
return valToStr(val).replace(/\]\]>/g, ']]]]><![CDATA[>')
}
export function escapeAttribute(val) {
return String(val).replace(/"/g, '&quot;').replace(/'/g, '&apos;')
return valToStr(val).replace(/"/g, '&quot;').replace(/'/g, '&apos;')
}
lib/fxb.min.js.map

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