Examples with FHIRLexer org.hl7.fhir.r4b.utils.FHIRLexer used on opensource projects

Example 11 with FHIRLexer

use of org.hl7.fhir.r4b.utils.FHIRLexer in project org.hl7.fhir.core by hapifhir.

the class StructureMapUtilities method parseUses.

private void parseUses(StructureMap result, FHIRLexer lexer) throws FHIRException {
    lexer.token("uses");
    StructureMapStructureComponent st = result.addStructure();
    st.setUrl(lexer.readConstant("url"));
    lexer.token("as");
    st.setMode(StructureMapModelMode.fromCode(lexer.take()));
    lexer.skipToken(";");
    if (lexer.hasComment()) {
        st.setDocumentation(lexer.take().substring(2).trim());
    }
    lexer.skipComments();
}

Example 12 with FHIRLexer

use of org.hl7.fhir.r4b.utils.FHIRLexer in project org.hl7.fhir.core by hapifhir.

the class StructureMapUtilities method parseUses.

private void parseUses(StructureMap result, FHIRLexer lexer) throws FHIRException {
    lexer.token("uses");
    StructureMapStructureComponent st = result.addStructure();
    st.setUrl(lexer.readConstant("url"));
    if (lexer.hasToken("alias")) {
        lexer.token("alias");
        st.setAlias(lexer.take());
    }
    lexer.token("as");
    st.setMode(StructureMapModelMode.fromCode(lexer.take()));
    lexer.skipToken(";");
    if (lexer.hasComment()) {
        st.setDocumentation(lexer.take().substring(2).trim());
    }
    lexer.skipComments();
}

Example 13 with FHIRLexer

use of org.hl7.fhir.r4b.utils.FHIRLexer in project org.hl7.fhir.core by hapifhir.

the class StructureMapUtilities method parseConceptMap.

private void parseConceptMap(StructureMap result, FHIRLexer lexer) throws FHIRLexerException {
    lexer.token("conceptmap");
    ConceptMap map = new ConceptMap();
    String id = lexer.readConstant("map id");
    if (!id.startsWith("#"))
        lexer.error("Concept Map identifier must start with #");
    map.setId(id);
    // todo: how to add this to the text format
    map.setStatus(PublicationStatus.DRAFT);
    result.getContained().add(map);
    lexer.token("{");
    lexer.skipComments();
    // lexer.token("source");
    // map.setSource(new UriType(lexer.readConstant("source")));
    // lexer.token("target");
    // map.setSource(new UriType(lexer.readConstant("target")));
    Map<String, String> prefixes = new HashMap<String, String>();
    while (lexer.hasToken("prefix")) {
        lexer.token("prefix");
        String n = lexer.take();
        lexer.token("=");
        String v = lexer.readConstant("prefix url");
        prefixes.put(n, v);
    }
    while (lexer.hasToken("unmapped")) {
        lexer.token("unmapped");
        lexer.token("for");
        String n = readPrefix(prefixes, lexer);
        ConceptMapGroupComponent g = getGroup(map, n, null);
        lexer.token("=");
        String v = lexer.take();
        if (v.equals("provided")) {
            g.getUnmapped().setMode(ConceptMapGroupUnmappedMode.PROVIDED);
        } else
            lexer.error("Only unmapped mode PROVIDED is supported at this time");
    }
    while (!lexer.hasToken("}")) {
        String srcs = readPrefix(prefixes, lexer);
        lexer.token(":");
        String sc = lexer.getCurrent().startsWith("\"") ? lexer.readConstant("code") : lexer.take();
        ConceptMapEquivalence eq = readEquivalence(lexer);
        String tgts = (eq != ConceptMapEquivalence.UNMATCHED) ? readPrefix(prefixes, lexer) : "";
        ConceptMapGroupComponent g = getGroup(map, srcs, tgts);
        SourceElementComponent e = g.addElement();
        e.setCode(sc);
        if (e.getCode().startsWith("\""))
            e.setCode(lexer.processConstant(e.getCode()));
        TargetElementComponent tgt = e.addTarget();
        if (eq != ConceptMapEquivalence.EQUIVALENT)
            tgt.setEquivalence(eq);
        if (tgt.getEquivalence() != ConceptMapEquivalence.UNMATCHED) {
            lexer.token(":");
            tgt.setCode(lexer.take());
            if (tgt.getCode().startsWith("\""))
                tgt.setCode(lexer.processConstant(tgt.getCode()));
        }
        if (lexer.hasComment())
            tgt.setComment(lexer.take().substring(2).trim());
    }
    lexer.token("}");
}

Example 14 with FHIRLexer

use of org.hl7.fhir.r4b.utils.FHIRLexer 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 15 with FHIRLexer

use of org.hl7.fhir.r4b.utils.FHIRLexer 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;
}