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Pretty print XML #694

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merged 10 commits into from
Oct 14, 2022
+1,715 −14
Merged

Pretty print XML #694

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b7f708b
Altered XML toString to allow indentation param
DeaneOC Oct 6, 2022
fa457a4
Test cases for XML toString indentation
DeaneOC Oct 6, 2022
4a8ff28
Reduced Test code length by using resources
DeaneOC Oct 7, 2022
153972a
Adding resources
DeaneOC Oct 7, 2022
a2c0562
Removed unused import
DeaneOC Oct 7, 2022
80c1479
Merge branch 'master' of https://github.com/stleary/JSON-java into Pr…
DeaneOC Oct 7, 2022
9cb8e15
Added JavaDocs
DeaneOC Oct 7, 2022
7aba3ac
System line seperator now being used in JUnit test
DeaneOC Oct 10, 2022
85495fa
Corrected test
DeaneOC Oct 10, 2022
bf92193
Merge branch 'master' of https://github.com/stleary/JSON-java into Pr…
DeaneOC Oct 10, 2022
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119 changes: 112 additions & 7 deletions src/main/java/org/json/XML.java
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Original file line number Diff line number Diff line change
Expand Up @@ -752,6 +752,28 @@ public static String toString(final Object object, final String tagName) {
*/
public static String toString(final Object object, final String tagName, final XMLParserConfiguration config)
throws JSONException {
return toString(object, tagName, config, 0, 0);
}

/**
* Convert a JSONObject into a well-formed, element-normal XML string,
* either pretty print or single-lined depending on indent factor.
*
* @param object
* A JSONObject.
* @param tagName
* The optional name of the enclosing tag.
* @param config
* Configuration that can control output to XML.
* @param indentFactor
* The number of spaces to add to each level of indentation.
* @param indent
* The current ident level in spaces.
* @return
* @throws JSONException
*/
private static String toString(final Object object, final String tagName, final XMLParserConfiguration config, int indentFactor, int indent)
throws JSONException {
StringBuilder sb = new StringBuilder();
JSONArray ja;
JSONObject jo;
Expand All @@ -761,9 +783,14 @@ public static String toString(final Object object, final String tagName, final X

// Emit <tagName>
if (tagName != null) {
sb.append(indent(indent));
sb.append('<');
sb.append(tagName);
sb.append('>');
if(indentFactor > 0){
sb.append("\n");
indent += indentFactor;
}
}

// Loop thru the keys.
Expand Down Expand Up @@ -806,31 +833,39 @@ public static String toString(final Object object, final String tagName, final X
sb.append('<');
sb.append(key);
sb.append('>');
sb.append(toString(val, null, config));
sb.append(toString(val, null, config, indentFactor, indent));
sb.append("</");
sb.append(key);
sb.append('>');
} else {
sb.append(toString(val, key, config));
sb.append(toString(val, key, config, indentFactor, indent));
}
}
} else if ("".equals(value)) {
sb.append(indent(indent));
sb.append('<');
sb.append(key);
sb.append("/>");
if(indentFactor > 0){
sb.append("\n");
}

// Emit a new tag <k>

} else {
sb.append(toString(value, key, config));
sb.append(toString(value, key, config, indentFactor, indent));
}
}
if (tagName != null) {

// Emit the </tagName> close tag
sb.append(indent(indent - indentFactor));
sb.append("</");
sb.append(tagName);
sb.append('>');
if(indentFactor > 0){
sb.append("\n");
}
}
return sb.toString();

Expand All @@ -849,15 +884,85 @@ public static String toString(final Object object, final String tagName, final X
// XML does not have good support for arrays. If an array
// appears in a place where XML is lacking, synthesize an
// <array> element.
sb.append(toString(val, tagName == null ? "array" : tagName, config));
sb.append(toString(val, tagName == null ? "array" : tagName, config, indentFactor, indent));
}
return sb.toString();
}


string = (object == null) ? "null" : escape(object.toString());
return (tagName == null) ? "\"" + string + "\""
: (string.length() == 0) ? "<" + tagName + "/>" : "<" + tagName
+ ">" + string + "</" + tagName + ">";

if(tagName == null){
return indent(indent) + "\"" + string + "\"" + ((indentFactor > 0) ? "\n" : "");
} else if(string.length() == 0){
return indent(indent) + "<" + tagName + "/>" + ((indentFactor > 0) ? "\n" : "");
} else {
return indent(indent) + "<" + tagName
+ ">" + string + "</" + tagName + ">" + ((indentFactor > 0) ? "\n" : "");
}
}

/**
* Convert a JSONObject into a well-formed, pretty printed element-normal XML string.
*
* @param object
* A JSONObject.
* @param indentFactor
* The number of spaces to add to each level of indentation.
* @return A string.
* @throws JSONException Thrown if there is an error parsing the string
*/
public static String toString(Object object, int indentFactor){
return toString(object, null, XMLParserConfiguration.ORIGINAL, indentFactor);
}

/**
* Convert a JSONObject into a well-formed, pretty printed element-normal XML string.
*
* @param object
* A JSONObject.
* @param tagName
* The optional name of the enclosing tag.
* @param indentFactor
* The number of spaces to add to each level of indentation.
* @return A string.
* @throws JSONException Thrown if there is an error parsing the string
*/
public static String toString(final Object object, final String tagName, int indentFactor) {
return toString(object, tagName, XMLParserConfiguration.ORIGINAL, indentFactor);
}

/**
* Convert a JSONObject into a well-formed, pretty printed element-normal XML string.
*
* @param object
* A JSONObject.
* @param tagName
* The optional name of the enclosing tag.
* @param config
* Configuration that can control output to XML.
* @param indentFactor
* The number of spaces to add to each level of indentation.
* @return A string.
* @throws JSONException Thrown if there is an error parsing the string
*/
public static String toString(final Object object, final String tagName, final XMLParserConfiguration config, int indentFactor)
throws JSONException {
return toString(object, tagName, config, indentFactor, 0);
}

/**
* Return a String consisting of a number of space characters specified by indent
*
* @param indent
* The number of spaces to be appended to the String.
* @return
*/
private static final String indent(int indent) {
StringBuilder sb = new StringBuilder();
for (int i = 0; i < indent; i++) {
sb.append(' ');
}
return sb.toString();
}
}