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

Introduction

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

Prototype

public static final boolean equals(char[] first, char[] second, int secondStart, int secondEnd) 

Source Link

Document

Answers true if the first array is identical character by character to a portion of the second array delimited from position secondStart (inclusive) to secondEnd(exclusive), otherwise false.

Usage

From source file:org.eclipse.tycho.compiler.jdt.JDTCompiler.java

License:Open Source License

/**
 * check the compiler arguments. Extract from files specified using @, lines marked with
 * ADAPTER_PREFIX These lines specify information that needs to be interpreted by us.
 * /*from  w w w. j av a2  s.c o  m*/
 * @param args
 *            compiler arguments to process
 */
private void checkCompilerArgs(Map<String, String> args) {
    for (String arg : args.keySet()) {
        if (arg.charAt(0) == '@') {
            try {
                char[] content = Util.getFileCharContent(new File(arg.substring(1)), null);
                int offset = 0;
                int prefixLength = ADAPTER_PREFIX.length;
                while ((offset = CharOperation.indexOf(ADAPTER_PREFIX, content, true, offset)) > -1) {
                    int start = offset + prefixLength;
                    int end = CharOperation.indexOf('\n', content, start);
                    if (end == -1)
                        end = content.length;
                    while (CharOperation.isWhitespace(content[end])) {
                        end--;
                    }

                    // end is inclusive, but in the API end is exclusive
                    if (CharOperation.equals(ADAPTER_ENCODING, content, start,
                            start + ADAPTER_ENCODING.length)) {
                        CharOperation.replace(content, SEPARATOR_CHARS, File.separatorChar, start, end + 1);
                        // file or folder level custom encoding
                        start += ADAPTER_ENCODING.length;
                        int encodeStart = CharOperation.lastIndexOf('[', content, start, end);
                        if (start < encodeStart && encodeStart < end) {
                            boolean isFile = CharOperation.equals(SuffixConstants.SUFFIX_java, content,
                                    encodeStart - 5, encodeStart, false);

                            String str = String.valueOf(content, start, encodeStart - start);
                            String enc = String.valueOf(content, encodeStart, end - encodeStart + 1);
                            if (isFile) {
                                if (fileEncodings == null)
                                    fileEncodings = new HashMap<String, String>();
                                // use File to translate the string into a
                                // path with the correct File.seperator
                                fileEncodings.put(str, enc);
                            } else {
                                if (dirEncodings == null)
                                    dirEncodings = new HashMap<String, String>();
                                dirEncodings.put(str, enc);
                            }
                        }
                    } else if (CharOperation.equals(ADAPTER_ACCESS, content, start,
                            start + ADAPTER_ACCESS.length)) {
                        // access rules for the classpath
                        start += ADAPTER_ACCESS.length;
                        int accessStart = CharOperation.indexOf('[', content, start, end);
                        // CharOperation.replace(content, SEPARATOR_CHARS,
                        // File.separatorChar, start, accessStart);
                        if (start < accessStart && accessStart < end) {
                            String path = String.valueOf(content, start, accessStart - start);
                            String access = String.valueOf(content, accessStart, end - accessStart + 1);
                            if (accessRules == null)
                                accessRules = new ArrayList<String>();
                            accessRules.add(path);
                            accessRules.add(access);
                        }
                    }
                    offset = end;
                }
            } catch (IOException e) {
                // ignore
            }
        }
    }

}

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