Method parseParamNames

java/org/apache/catalina/ssi/SSIProcessor.java:198–260

Parse a StringBuilder and take out the param type token. Called from requestHandler @param cmd a value of type 'StringBuilder' @param start index on which parsing will start @return an array with the parameter names

(StringBuilder cmd, int start)

     * @return an array with the parameter names
     */
    protected String[] parseParamNames(StringBuilder cmd, int start) {
        // Count parameters first
        int count = 0;
        int bIdx = start;
        // Tracks the quote character that will close any currently quoted text. 0 means not currently quoted.
        char endQuote = 0;
        boolean escaped = false;
        while (bIdx < cmd.length()) {
            char c = cmd.charAt(bIdx);
            if (escaped) {
                escaped = false;
            } else if (c == '\\') {
                escaped = true;
            } else if (endQuote == 0 && (c == '"' || c == '\'' || c == '`')) {
                endQuote = c;
            } else if (endQuote == c) {
                endQuote = 0;
            } else if (c == '=' && endQuote == 0) {
                count++;
            }
            bIdx++;
        }
        String[] retString = new String[count];
        // Extract parameter names (characters between spaces and the first unquoted '=')
        bIdx = start;
        int idx = 0;
        StringBuilder nameBuf = new StringBuilder();
        boolean collectingName = false;
        endQuote = 0;
        escaped = false;
        while (bIdx < cmd.length() && idx < count) {
            char c = cmd.charAt(bIdx);
            if (escaped) {
                escaped = false;
                if (collectingName && endQuote == 0) {
                    nameBuf.append(c);
                }
            } else if (c == '\\') {
                escaped = true;
                if (collectingName && endQuote == 0) {
                    nameBuf.append(c);
                }
            } else if (endQuote == 0 && (c == '"' || c == '\'' || c == '`')) {
                endQuote = c;
            } else if (endQuote == c) {
                endQuote = 0;
            } else if (endQuote == 0 && isSpace(c)) {
                if (collectingName) {
                    nameBuf.setLength(0);
                    collectingName = false;
                }
            } else if (endQuote == 0 && c == '=') {
                retString[idx++] = nameBuf.toString().trim();
                nameBuf.setLength(0);
                collectingName = false;
            } else if (endQuote == 0) {
                collectingName = true;
                nameBuf.append(c);