Examples with FHIRLexerException org.hl7.fhir.r4.utils.FHIRLexer.FHIRLexerException used on opensource projects

Example 16 with FHIRLexerException

use of org.hl7.fhir.r4.utils.FHIRLexer.FHIRLexerException in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method parsePartial.

/**
 * Parse a path for later use using execute
 *
 * @param path
 * @return
 * @throws PathEngineException
 * @throws Exception
 */
public ExpressionNodeWithOffset parsePartial(String path, int i) throws FHIRLexerException {
    FHIRLexer lexer = new FHIRLexer(path, i);
    if (lexer.done()) {
        throw lexer.error("Path cannot be empty");
    }
    ExpressionNode result = parseExpression(lexer, true);
    result.check();
    return new ExpressionNodeWithOffset(lexer.getCurrentStart(), result);
}

Example 17 with FHIRLexerException

use of org.hl7.fhir.r4.utils.FHIRLexer.FHIRLexerException in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method parse.

public ExpressionNode parse(String path, String name) throws FHIRLexerException {
    FHIRLexer lexer = new FHIRLexer(path, name);
    if (lexer.done()) {
        throw lexer.error("Path cannot be empty");
    }
    ExpressionNode result = parseExpression(lexer, true);
    if (!lexer.done()) {
        throw lexer.error("Premature ExpressionNode termination at unexpected token \"" + lexer.getCurrent() + "\"");
    }
    result.check();
    return result;
}

Example 18 with FHIRLexerException

use of org.hl7.fhir.r4.utils.FHIRLexer.FHIRLexerException in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method parse.

/**
 * Parse a path that is part of some other syntax
 *
 * @return
 * @throws PathEngineException
 * @throws Exception
 */
public ExpressionNode parse(FHIRLexer lexer) throws FHIRLexerException {
    ExpressionNode result = parseExpression(lexer, true);
    result.check();
    return result;
}

Example 19 with FHIRLexerException

use of org.hl7.fhir.r4.utils.FHIRLexer.FHIRLexerException in project org.hl7.fhir.core by hapifhir.

the class FHIRLexer method processConstant.

public String processConstant(String s) throws FHIRLexerException {
    StringBuilder b = new StringBuilder();
    int i = 1;
    while (i < s.length() - 1) {
        char ch = s.charAt(i);
        if (ch == '\\') {
            i++;
            switch(s.charAt(i)) {
                case 't':
                    b.append('\t');
                    break;
                case 'r':
                    b.append('\r');
                    break;
                case 'n':
                    b.append('\n');
                    break;
                case 'f':
                    b.append('\f');
                    break;
                case '\'':
                    b.append('\'');
                    break;
                case '"':
                    b.append('"');
                    break;
                case '`':
                    b.append('`');
                    break;
                case '\\':
                    b.append('\\');
                    break;
                case '/':
                    b.append('/');
                    break;
                case 'u':
                    i++;
                    int uc = Integer.parseInt(s.substring(i, i + 4), 16);
                    b.append((char) uc);
                    i = i + 4;
                    break;
                default:
                    throw new FHIRLexerException("Unknown character escape \\" + s.charAt(i));
            }
        } else {
            b.append(ch);
            i++;
        }
    }
    return b.toString();
}

Example 20 with FHIRLexerException

use of org.hl7.fhir.r4.utils.FHIRLexer.FHIRLexerException in project org.hl7.fhir.core by hapifhir.

the class FHIRLexer method processFixedName.

public String processFixedName(String s) throws FHIRLexerException {
    StringBuilder b = new StringBuilder();
    int i = 1;
    while (i < s.length() - 1) {
        char ch = s.charAt(i);
        if (ch == '\\') {
            i++;
            switch(s.charAt(i)) {
                case 't':
                    b.append('\t');
                    break;
                case 'r':
                    b.append('\r');
                    break;
                case 'n':
                    b.append('\n');
                    break;
                case 'f':
                    b.append('\f');
                    break;
                case '\'':
                    b.append('\'');
                    break;
                case '"':
                    b.append('"');
                    break;
                case '\\':
                    b.append('\\');
                    break;
                case '/':
                    b.append('/');
                    break;
                case 'u':
                    i++;
                    int uc = Integer.parseInt(s.substring(i, i + 4), 16);
                    b.append((char) uc);
                    i = i + 4;
                    break;
                default:
                    throw new FHIRLexerException("Unknown character escape \\" + s.charAt(i));
            }
        } else {
            b.append(ch);
            i++;
        }
    }
    return b.toString();
}