private XpmHeader parseXpmHeader()

in src/main/java/org/apache/commons/imaging/formats/xpm/XpmImageParser.java [356:409]
53 lines of code
15 McCabe index (conditional complexity)

    private XpmHeader parseXpmHeader(final BasicCParser cParser) throws ImagingException, IOException {
        String name;
        String token;
        token = cParser.nextToken();
        if (!"static".equals(token)) {
            throw new ImagingException("Parsing XPM file failed, no 'static' token");
        }
        token = cParser.nextToken();
        if (!"char".equals(token)) {
            throw new ImagingException("Parsing XPM file failed, no 'char' token");
        }
        token = cParser.nextToken();
        if (!"*".equals(token)) {
            throw new ImagingException("Parsing XPM file failed, no '*' token");
        }
        name = cParser.nextToken();
        if (name == null) {
            throw new ImagingException("Parsing XPM file failed, no variable name");
        }
        if (name.charAt(0) != '_' && !Character.isLetter(name.charAt(0))) {
            throw new ImagingException("Parsing XPM file failed, variable name " + "doesn't start with letter or underscore");
        }
        for (int i = 0; i < name.length(); i++) {
            final char c = name.charAt(i);
            if (!Character.isLetterOrDigit(c) && c != '_') {
                throw new ImagingException("Parsing XPM file failed, variable name " + "contains non-letter non-digit non-underscore");
            }
        }
        token = cParser.nextToken();
        if (!"[".equals(token)) {
            throw new ImagingException("Parsing XPM file failed, no '[' token");
        }
        token = cParser.nextToken();
        if (!"]".equals(token)) {
            throw new ImagingException("Parsing XPM file failed, no ']' token");
        }
        token = cParser.nextToken();
        if (!"=".equals(token)) {
            throw new ImagingException("Parsing XPM file failed, no '=' token");
        }
        token = cParser.nextToken();
        if (!"{".equals(token)) {
            throw new ImagingException("Parsing XPM file failed, no '{' token");
        }

        final StringBuilder row = new StringBuilder();
        final boolean hasMore = parseNextString(cParser, row);
        if (!hasMore) {
            throw new ImagingException("Parsing XPM file failed, " + "file too short");
        }
        final XpmHeader xpmHeader = parseXpmValuesSection(row.toString());
        parsePaletteEntries(xpmHeader, cParser);
        return xpmHeader;
    }