Example usage for org.eclipse.jdt.core.compiler CharOperation prefixEquals

Introduction

In this page you can find the example usage for org.eclipse.jdt.core.compiler CharOperation prefixEquals.

Prototype

public static final boolean prefixEquals(char[] prefix, char[] name, boolean isCaseSensitive) 

Source Link

Document

Answers true if the given name starts with the given prefix, false otherwise.

Usage

From source file:com.codenvy.ide.ext.java.server.core.search.SearchPattern.java

License:Open Source License

/**
 * Returns whether the given name matches the given pattern.
 * <p>/*from w w  w. j  a  va  2  s  .  com*/
 * This method should be re-implemented in subclasses that need to define how
 * a name matches a pattern.
 * </p>
 *
 * @param pattern the given pattern, or <code>null</code> to represent "*"
 * @param name the given name
 * @return whether the given name matches the given pattern
 */
public boolean matchesName(char[] pattern, char[] name) {
    if (pattern == null)
        return true; // null is as if it was "*"
    if (name != null) {
        boolean isCaseSensitive = (this.matchRule & R_CASE_SENSITIVE) != 0;
        int matchMode = this.matchRule & MODE_MASK;
        boolean emptyPattern = pattern.length == 0;
        if (emptyPattern && (this.matchRule & R_PREFIX_MATCH) != 0)
            return true;
        boolean sameLength = pattern.length == name.length;
        boolean canBePrefix = name.length >= pattern.length;
        boolean matchFirstChar = !isCaseSensitive || emptyPattern || (name.length > 0 && pattern[0] == name[0]);
        switch (matchMode) {
        case R_EXACT_MATCH:
            if (sameLength && matchFirstChar) {
                return CharOperation.equals(pattern, name, isCaseSensitive);
            }
            break;

        case R_PREFIX_MATCH:
            if (canBePrefix && matchFirstChar) {
                return CharOperation.prefixEquals(pattern, name, isCaseSensitive);
            }
            break;

        case R_PATTERN_MATCH:
            if (!isCaseSensitive)
                pattern = CharOperation.toLowerCase(pattern);
            return CharOperation.match(pattern, name, isCaseSensitive);

        case SearchPattern.R_CAMELCASE_MATCH:
            if (matchFirstChar && CharOperation.camelCaseMatch(pattern, name, false)) {
                return true;
            }
            // only test case insensitive as CamelCase already verified prefix case sensitive
            if (!isCaseSensitive && matchFirstChar && CharOperation.prefixEquals(pattern, name, false)) {
                return true;
            }
            break;

        case SearchPattern.R_CAMELCASE_SAME_PART_COUNT_MATCH:
            return matchFirstChar && CharOperation.camelCaseMatch(pattern, name, true);

        case R_REGEXP_MATCH:
            // TODO implement regular expression match
            return true;
        }
    }
    return false;
}

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From source file:com.codenvy.ide.ext.java.server.internal.core.search.BasicSearchEngine.java

License:Open Source License

boolean match(char patternTypeSuffix, char[] patternPkg, int matchRulePkg, char[] patternTypeName,
        int matchRuleType, int typeKind, char[] pkg, char[] typeName) {
    switch (patternTypeSuffix) {
    case IIndexConstants.CLASS_SUFFIX:
        if (typeKind != TypeDeclaration.CLASS_DECL)
            return false;
        break;/* ww  w  . ja va  2s.c om*/
    case IIndexConstants.CLASS_AND_INTERFACE_SUFFIX:
        if (typeKind != TypeDeclaration.CLASS_DECL && typeKind != TypeDeclaration.INTERFACE_DECL)
            return false;
        break;
    case IIndexConstants.CLASS_AND_ENUM_SUFFIX:
        if (typeKind != TypeDeclaration.CLASS_DECL && typeKind != TypeDeclaration.ENUM_DECL)
            return false;
        break;
    case IIndexConstants.INTERFACE_SUFFIX:
        if (typeKind != TypeDeclaration.INTERFACE_DECL)
            return false;
        break;
    case IIndexConstants.INTERFACE_AND_ANNOTATION_SUFFIX:
        if (typeKind != TypeDeclaration.INTERFACE_DECL && typeKind != TypeDeclaration.ANNOTATION_TYPE_DECL)
            return false;
        break;
    case IIndexConstants.ENUM_SUFFIX:
        if (typeKind != TypeDeclaration.ENUM_DECL)
            return false;
        break;
    case IIndexConstants.ANNOTATION_TYPE_SUFFIX:
        if (typeKind != TypeDeclaration.ANNOTATION_TYPE_DECL)
            return false;
        break;
    case IIndexConstants.TYPE_SUFFIX: // nothing
    }

    boolean isPkgCaseSensitive = (matchRulePkg & SearchPattern.R_CASE_SENSITIVE) != 0;
    if (patternPkg != null && !CharOperation.equals(patternPkg, pkg, isPkgCaseSensitive))
        return false;

    boolean isCaseSensitive = (matchRuleType & SearchPattern.R_CASE_SENSITIVE) != 0;
    if (patternTypeName != null) {
        boolean isCamelCase = (matchRuleType
                & (SearchPattern.R_CAMELCASE_MATCH | SearchPattern.R_CAMELCASE_SAME_PART_COUNT_MATCH)) != 0;
        int matchMode = matchRuleType & JavaSearchPattern.MATCH_MODE_MASK;
        if (!isCaseSensitive && !isCamelCase) {
            patternTypeName = CharOperation.toLowerCase(patternTypeName);
        }
        boolean matchFirstChar = !isCaseSensitive || patternTypeName[0] == typeName[0];
        switch (matchMode) {
        case SearchPattern.R_EXACT_MATCH:
            return matchFirstChar && CharOperation.equals(patternTypeName, typeName, isCaseSensitive);
        case SearchPattern.R_PREFIX_MATCH:
            return matchFirstChar && CharOperation.prefixEquals(patternTypeName, typeName, isCaseSensitive);
        case SearchPattern.R_PATTERN_MATCH:
            return CharOperation.match(patternTypeName, typeName, isCaseSensitive);
        case SearchPattern.R_REGEXP_MATCH:
            // TODO (frederic) implement regular expression match
            break;
        case SearchPattern.R_CAMELCASE_MATCH:
            if (matchFirstChar && CharOperation.camelCaseMatch(patternTypeName, typeName, false)) {
                return true;
            }
            return !isCaseSensitive && matchFirstChar
                    && CharOperation.prefixEquals(patternTypeName, typeName, false);
        case SearchPattern.R_CAMELCASE_SAME_PART_COUNT_MATCH:
            return matchFirstChar && CharOperation.camelCaseMatch(patternTypeName, typeName, true);
        }
    }
    return true;

}

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From source file:com.codenvy.ide.ext.java.server.internal.core.search.matching.PackageReferenceLocator.java

License:Open Source License

protected int matchLevelForTokens(char[][] tokens) {
    if (this.pattern.pkgName == null)
        return ACCURATE_MATCH;

    switch (this.matchMode) {
    case SearchPattern.R_EXACT_MATCH:
    case SearchPattern.R_PREFIX_MATCH:
        if (CharOperation.prefixEquals(this.pattern.pkgName, CharOperation.concatWith(tokens, '.'),
                this.isCaseSensitive)) {
            return POSSIBLE_MATCH;
        }/*  w  w w .  j a va  2 s  . c  o m*/
        break;

    case SearchPattern.R_PATTERN_MATCH:
        char[] patternName = this.pattern.pkgName[this.pattern.pkgName.length - 1] == '*' ? this.pattern.pkgName
                : CharOperation.concat(this.pattern.pkgName, ".*".toCharArray()); //$NON-NLS-1$
        if (CharOperation.match(patternName, CharOperation.concatWith(tokens, '.'), this.isCaseSensitive)) {
            return POSSIBLE_MATCH;
        }
        break;

    case SearchPattern.R_REGEXP_MATCH:
        // TODO (frederic) implement regular expression match
        break;

    case SearchPattern.R_CAMELCASE_MATCH:
        char[] packageName = CharOperation.concatWith(tokens, '.');
        if (CharOperation.camelCaseMatch(this.pattern.pkgName, packageName, false)) {
            return POSSIBLE_MATCH;
        }
        // only test case insensitive as CamelCase already verified prefix case sensitive
        if (!this.isCaseSensitive && CharOperation.prefixEquals(this.pattern.pkgName, packageName, false)) {
            return POSSIBLE_MATCH;
        }
        break;

    case SearchPattern.R_CAMELCASE_SAME_PART_COUNT_MATCH:
        if (CharOperation.camelCaseMatch(this.pattern.pkgName, CharOperation.concatWith(tokens, '.'), true)) {
            return POSSIBLE_MATCH;
        }
        break;
    }
    return IMPOSSIBLE_MATCH;
}

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From source file:com.codenvy.ide.ext.java.server.internal.core.search.matching.PatternLocator.java

License:Open Source License

/**
 * Return how the given name matches the given pattern.
 * @see "https://bugs.eclipse.org/bugs/show_bug.cgi?id=79866"
 *
 * @param pattern/*from  www.  jav  a 2s  .c  om*/
 * @param name
 * @return Possible values are:
 * <ul>
 *    <li> {@link #ACCURATE_MATCH}</li>
 *    <li> {@link #IMPOSSIBLE_MATCH}</li>
 *    <li> {@link #POSSIBLE_MATCH} which may be flavored with following values:
 *       <ul>
 *       <li>{@link #EXACT_FLAVOR}: Given name is equals to pattern</li>
 *       <li>{@link #PREFIX_FLAVOR}: Given name prefix equals to pattern</li>
 *       <li>{@link #CAMELCASE_FLAVOR}: Given name matches pattern as Camel Case</li>
 *       <li>{@link #PATTERN_FLAVOR}: Given name matches pattern as Pattern (i.e. using '*' and '?' characters)</li>
 *       </ul>
 *    </li>
 * </ul>
 */
protected int matchNameValue(char[] pattern, char[] name) {
    if (pattern == null)
        return ACCURATE_MATCH; // null is as if it was "*"
    if (name == null)
        return IMPOSSIBLE_MATCH; // cannot match null name
    if (name.length == 0) { // empty name
        if (pattern.length == 0) { // can only matches empty pattern
            return ACCURATE_MATCH;
        }
        return IMPOSSIBLE_MATCH;
    } else if (pattern.length == 0) {
        return IMPOSSIBLE_MATCH; // need to have both name and pattern length==0 to be accurate
    }
    boolean matchFirstChar = !this.isCaseSensitive || pattern[0] == name[0];
    boolean sameLength = pattern.length == name.length;
    boolean canBePrefix = name.length >= pattern.length;
    switch (this.matchMode) {
    case SearchPattern.R_EXACT_MATCH:
        if (sameLength && matchFirstChar && CharOperation.equals(pattern, name, this.isCaseSensitive)) {
            return POSSIBLE_MATCH | EXACT_FLAVOR;
        }
        break;

    case SearchPattern.R_PREFIX_MATCH:
        if (canBePrefix && matchFirstChar && CharOperation.prefixEquals(pattern, name, this.isCaseSensitive)) {
            return POSSIBLE_MATCH;
        }
        break;

    case SearchPattern.R_PATTERN_MATCH:
        // TODO_PERFS (frederic) Not sure this lowercase is necessary
        if (!this.isCaseSensitive) {
            pattern = CharOperation.toLowerCase(pattern);
        }
        if (CharOperation.match(pattern, name, this.isCaseSensitive)) {
            return POSSIBLE_MATCH;
        }
        break;

    case SearchPattern.R_REGEXP_MATCH:
        // TODO (frederic) implement regular expression match
        break;

    case SearchPattern.R_CAMELCASE_MATCH:
        if (CharOperation.camelCaseMatch(pattern, name, false)) {
            return POSSIBLE_MATCH;
        }
        // only test case insensitive as CamelCase same part count already verified prefix case sensitive
        if (!this.isCaseSensitive && CharOperation.prefixEquals(pattern, name, false)) {
            return POSSIBLE_MATCH;
        }
        break;

    case SearchPattern.R_CAMELCASE_SAME_PART_COUNT_MATCH:
        if (CharOperation.camelCaseMatch(pattern, name, true)) {
            return POSSIBLE_MATCH;
        }
        break;
    }
    return IMPOSSIBLE_MATCH;
}

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From source file:com.codenvy.ide.ext.java.server.internal.core.search.matching.PatternLocator.java

License:Open Source License

/**
 * Returns whether the given type binding matches the given simple name pattern
 * and qualification pattern.//from w w  w.j  ava  2  s  .  c om
 * Note that from since 3.1, this method resolve to accurate member or local types
 * even if they are not fully qualified (i.e. X.Member instead of p.X.Member).
 * Returns ACCURATE_MATCH if it does.
 * Returns INACCURATE_MATCH if resolve failed.
 * Returns IMPOSSIBLE_MATCH if it doesn't.
 */
protected int resolveLevelForType(char[] simpleNamePattern, char[] qualificationPattern, TypeBinding binding) {
    //   return resolveLevelForType(qualifiedPattern(simpleNamePattern, qualificationPattern), type);
    char[] qualifiedPattern = getQualifiedPattern(simpleNamePattern, qualificationPattern);
    int level = resolveLevelForType(qualifiedPattern, binding);
    if (level == ACCURATE_MATCH || binding == null || !binding.isValidBinding())
        return level;
    TypeBinding type = binding instanceof ArrayBinding ? ((ArrayBinding) binding).leafComponentType : binding;
    char[] sourceName = null;
    if (type.isMemberType() || type.isLocalType()) {
        if (qualificationPattern != null) {
            sourceName = getQualifiedSourceName(binding);
        } else {
            sourceName = binding.sourceName();
        }
    } else if (qualificationPattern == null) {
        sourceName = getQualifiedSourceName(binding);
    }
    if (sourceName == null)
        return IMPOSSIBLE_MATCH;
    switch (this.matchMode) {
    case SearchPattern.R_PREFIX_MATCH:
        if (CharOperation.prefixEquals(qualifiedPattern, sourceName, this.isCaseSensitive)) {
            return ACCURATE_MATCH;
        }
        break;
    case SearchPattern.R_CAMELCASE_MATCH:
        if ((qualifiedPattern.length > 0 && sourceName.length > 0 && qualifiedPattern[0] == sourceName[0])) {
            if (CharOperation.camelCaseMatch(qualifiedPattern, sourceName, false)) {
                return ACCURATE_MATCH;
            }
            if (!this.isCaseSensitive && CharOperation.prefixEquals(qualifiedPattern, sourceName, false)) {
                return ACCURATE_MATCH;
            }
        }
        break;
    case SearchPattern.R_CAMELCASE_SAME_PART_COUNT_MATCH:
        if ((qualifiedPattern.length > 0 && sourceName.length > 0 && qualifiedPattern[0] == sourceName[0])) {
            if (CharOperation.camelCaseMatch(qualifiedPattern, sourceName, true)) {
                return ACCURATE_MATCH;
            }
        }
        break;
    default:
        if (CharOperation.match(qualifiedPattern, sourceName, this.isCaseSensitive)) {
            return ACCURATE_MATCH;
        }
    }
    return IMPOSSIBLE_MATCH;
}

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From source file:com.codenvy.ide.ext.java.server.internal.core.search.matching.TypeReferenceLocator.java

License:Open Source License

protected int matchLevel(ImportReference importRef) {
    if (this.pattern.qualification == null) {
        if (this.pattern.simpleName == null)
            return ACCURATE_MATCH;
        char[][] tokens = importRef.tokens;
        boolean onDemand = (importRef.bits & ASTNode.OnDemand) != 0;
        final boolean isStatic = importRef.isStatic();
        if (!isStatic && onDemand) {
            return IMPOSSIBLE_MATCH;
        }//from   www  .java  2 s  . c  om
        int length = tokens.length;
        if (matchesName(this.pattern.simpleName, tokens[length - 1])) {
            return ACCURATE_MATCH;
        }
        if (isStatic && !onDemand && length > 1) {
            if (matchesName(this.pattern.simpleName, tokens[length - 2])) {
                return ACCURATE_MATCH;
            }
        }
    } else {
        char[][] tokens = importRef.tokens;
        char[] qualifiedPattern = this.pattern.simpleName == null ? this.pattern.qualification
                : CharOperation.concat(this.pattern.qualification, this.pattern.simpleName, '.');
        char[] qualifiedTypeName = CharOperation.concatWith(tokens, '.');
        if (qualifiedPattern == null)
            return ACCURATE_MATCH; // null is as if it was "*"
        if (qualifiedTypeName == null)
            return IMPOSSIBLE_MATCH; // cannot match null name
        if (qualifiedTypeName.length == 0) { // empty name
            if (qualifiedPattern.length == 0) { // can only matches empty pattern
                return ACCURATE_MATCH;
            }
            return IMPOSSIBLE_MATCH;
        }
        boolean matchFirstChar = !this.isCaseSensitive || (qualifiedPattern[0] == qualifiedTypeName[0]);
        switch (this.matchMode) {
        case SearchPattern.R_EXACT_MATCH:
        case SearchPattern.R_PREFIX_MATCH:
            if (CharOperation.prefixEquals(qualifiedPattern, qualifiedTypeName, this.isCaseSensitive)) {
                return POSSIBLE_MATCH;
            }
            break;

        case SearchPattern.R_PATTERN_MATCH:
            if (CharOperation.match(qualifiedPattern, qualifiedTypeName, this.isCaseSensitive)) {
                return POSSIBLE_MATCH;
            }
            break;

        case SearchPattern.R_REGEXP_MATCH:
            // TODO (frederic) implement regular expression match
            break;
        case SearchPattern.R_CAMELCASE_MATCH:
            if (matchFirstChar && CharOperation.camelCaseMatch(qualifiedPattern, qualifiedTypeName, false)) {
                return POSSIBLE_MATCH;
            }
            // only test case insensitive as CamelCase already verified prefix case sensitive
            if (!this.isCaseSensitive
                    && CharOperation.prefixEquals(qualifiedPattern, qualifiedTypeName, false)) {
                return POSSIBLE_MATCH;
            }
            break;
        case SearchPattern.R_CAMELCASE_SAME_PART_COUNT_MATCH:
            if (matchFirstChar && CharOperation.camelCaseMatch(qualifiedPattern, qualifiedTypeName, true)) {
                return POSSIBLE_MATCH;
            }
            break;
        }
    }
    return IMPOSSIBLE_MATCH;
}

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From source file:net.harawata.mybatipse.mybatis.XmlCompletionProposalComputer.java

License:Open Source License

private void proposeJavaType(final ContentAssistRequest contentAssistRequest, IJavaProject project,
        String matchString, final int start, final int length, boolean includeAlias) throws JavaModelException {
    final List<ICompletionProposal> results = new ArrayList<ICompletionProposal>();
    if (includeAlias) {
        TypeAliasMap typeAliasMap = TypeAliasCache.getInstance().getTypeAliasMap(project, null);
        for (TypeAliasInfo typeAliasInfo : typeAliasMap.values()) {
            String alias = typeAliasInfo.getAliasToInsert();
            String qualifiedName = typeAliasInfo.getQualifiedName();
            char[] aliasChrs = alias.toCharArray();
            char[] matchChrs = matchString.toCharArray();
            if (matchString.length() == 0 || CharOperation.camelCaseMatch(matchChrs, aliasChrs)
                    || CharOperation.prefixEquals(matchChrs, aliasChrs, false)) {
                results.add(new CompletionProposal(alias, start, length, alias.length(),
                        Activator.getIcon("/icons/mybatis-alias.png"), alias + " - " + qualifiedName, null,
                        null));//from w  w  w.  ja  v a 2s  . c  om
            }
        }
        addProposals(contentAssistRequest, results);
    }

    results.clear();

    int includeMask = IJavaSearchScope.SOURCES | IJavaSearchScope.REFERENCED_PROJECTS;
    // Include application libraries only when package is specified (for better performance).
    boolean pkgSpecified = matchString != null && matchString.indexOf('.') > 0;
    if (pkgSpecified)
        includeMask |= IJavaSearchScope.APPLICATION_LIBRARIES;
    IJavaSearchScope scope = SearchEngine.createJavaSearchScope(new IJavaProject[] { project }, includeMask);
    TypeNameRequestor requestor = new JavaTypeNameRequestor() {
        @Override
        public void acceptType(int modifiers, char[] packageName, char[] simpleTypeName,
                char[][] enclosingTypeNames, String path) {
            if (Flags.isAbstract(modifiers) || Flags.isInterface(modifiers))
                return;

            addJavaTypeProposal(results, start, length, packageName, simpleTypeName, enclosingTypeNames);
        }
    };
    searchJavaType(matchString, scope, requestor);
    addProposals(contentAssistRequest, results);
}

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