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fix parenthesis matching for JSON validation.

This commit is contained in:
Alfonso 2024-10-02 10:19:12 +02:00
parent e8a0bba072
commit 29484b2927
1 changed files with 25 additions and 4 deletions
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29
org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/json/parser/JsonLexer.java
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@ -51,6 +51,8 @@ public class JsonLexer {
private boolean isUnquoted;
private String sourceName;
private final Stack<String> parenthesis = new Stack<>();
public JsonLexer(String source, boolean allowComments, boolean allowUnquotedStrings, int line) throws IOException {
this.source = source;
this.allowComments = allowComments;
@ -162,6 +164,7 @@ public class JsonLexer {
return lastLocationAWS;
}
public void next() throws IOException {
lastLocationBWS = location.copy();
char ch;
@ -185,15 +188,25 @@ public class JsonLexer {
} while (more() && Utilities.charInSet(ch, ' ', '\r', '\n', '\t'));
lastLocationAWS = location.copy().prev();
isUnquoted = false;
if (!more()) {
type = TokenType.Eof;
if(!parenthesis.empty()) {
throw error("parenthesis matching is not respected. One or more parenthesis were not closed : " + parenthesis);
}
} else {
switch (ch) {
case '{' :
type = TokenType.Open;
parenthesis.push("{");
break;
case '}' :
case '}' :
if(parenthesis.empty()) {
throw error("Unexpected close marker '}'. No '{' before.");
}
String par = parenthesis.pop();
if(!par.equals("{")) {
throw error("Unexpected close marker '}'. Expected ']'.");
}
type = TokenType.Close;
break;
case '"' :
@ -229,10 +242,18 @@ public class JsonLexer {
case ',' :
type = TokenType.Comma;
break;
case '[' :
case '[' :
parenthesis.push("[");
type = TokenType.OpenArray;
break;
case ']' :
case ']' :
if(parenthesis.empty()) {
throw error("Unexpected close marker ']'. No '[' before.");
}
par = parenthesis.pop();
if(!par.equals("[")) {
throw error("Unexpected close marker ']'. Expected '}'");
}
type = TokenType.CloseArray;
break;
default: