private void skipExpression()

in freemarker-docgen-core/src/main/java/org/freemarker/docgen/core/CJSONInterpreter.java [1153:1267]
97 lines of code
25 McCabe index (conditional complexity)

    private void skipExpression() throws EvaluationException {
        char c;
       
        if (p >= ln) { //!!a
            throw new BugException("Calling fetchExpression when p >= ln.");
        }
       
        c = tx.charAt(p);
       
        // Map:
        if (c == '{') {
            p++;
            skipListing('}');
            p++;
            return;
        }
       
        // List:
        if (c == '[') {
            p++;
            skipListing(']');
            p++;
            return;
        }

        // Unresolved object in a dump:
        if (c == '<') {
            p++;
            skipListing('>');
            p++;
            return;
        }

        // Just for durability:
        if (c == '(') {
            p++;
            skipListing(')');
            p++;
            return;
        }
       
        int b = p;
        
        // Quoted string:
        if (c == '"' || c == '\'') {
            char q = c;
            
            p++;
            while (p < ln) {
                c = tx.charAt(p);
                if (c == '\\') {
                    if (p != ln - 1) {
                        p++;
                    }
                }
                p++;
                if (c == q) {
                    return; //!
                }
            }
            throw newSyntaxError(
                    "The closing " + TextUtil.jQuoteOrName(q)
                    + " of the string is missing.",
                    b);
        } // if quoted string
       
        // Raw string:
        char c2;
        if (p < ln - 1) {
            c2 = tx.charAt(p + 1); 
        } else {
            c2 = 0x20;
        }
        if (c == 'r' && (c2 == '"' || c2 == '\'')) {
            char q = c2;
            p += 2;
            while (p < ln) {
                c = tx.charAt(p);
                p++;
                if (c == q) {
                    return; //!
                }
            }
            throw newSyntaxError(
                    "The closing " + TextUtil.jQuoteOrName(q)
                    + " of the string is missing.",
                    b);
        }
       
        // Unquoted string, boolean or number, or function call
        uqsLoop: while (true) {
            c = tx.charAt(p);
            if (!isUnquotedStringChar(c)
                    && !(p == b && c == '+')) {
                break uqsLoop;
            }
            p++;
            if (p == ln) {
                break uqsLoop;
            }
        }
        if (b == p) {
            throw newSyntaxError("Unexpected character.", b);
        } else {
            int oldP = p;
            c = skipWS();
            if (c == '(') {
                p++;
                skipListing(')');
                p++;
            } else {
                p = oldP;
            } // if not '('
        } // if b == p
    }