/**
* Given a string, replace all tabs with the appropriate number of spaces.
*
* @param tabLength the length of each tab.
* @param s the String to scan.
*/
public static void replaceTabs(int tabLength, StringBuilder s) {
if (whitespace == null || whitespace.length() < tabLength)
whitespace = String.format("%" + tabLength + "s", " ");
int index = 0;
while ((index = s.indexOf("\t", index)) != -1) {
int spaceCount = tabLength - index % tabLength;
s.replace(index, index + 1, whitespace.substring(0, spaceCount));
index += spaceCount;
}
}
private void addClassPathToScriptEngine(File jarFile) throws ConfigurationException {
try {
StringBuilder cmd = new StringBuilder(addClassPathCmd);
int tagStartPos = cmd.indexOf(parameterTag);
int tageEndPos = tagStartPos + parameterTag.length();
cmd.replace(tagStartPos, tageEndPos, jarFile.getAbsolutePath().replace("\\", "/"));
// System.out.println("cmd " + cmd.toString());
engine.eval("add-classpath", 1, 1, cmd.toString()); // $NON-NLS-1$
} catch (Exception ex) {
String msg = String.format("Failed to load class path %s", jarFile.getName()); // $NON-NLS-1$
System.err.println(msg + " " + ex);
throw new ConfigurationException(msg, ex);
}
}
/**
* Imports a package into the script engine
*
* @param pkgName the name of the package
* @throws ConfigurationException if the package cannot be imported
*/
private void importPkgToScriptEngine(String pkgName) throws ConfigurationException {
try {
StringBuilder cmd = new StringBuilder(importPackageCmd);
int tagStartPos = cmd.indexOf(parameterTag);
int tageEndPos = tagStartPos + parameterTag.length();
cmd.replace(tagStartPos, tageEndPos, pkgName);
// System.out.println("cmd " + cmd.toString());
engine.eval("load-packages", 1, 1, cmd.toString()); // $NON-NLS-1$
} catch (Exception ex) {
String msg = String.format("Failed to import package %s", pkgName); // $NON-NLS-1$
System.err.println(msg + " " + ex);
throw new ConfigurationException(msg, ex);
}
}
@Override
public void replace(
DocumentFilter.FilterBypass fp, int offset, int length, String string, AttributeSet aset)
throws BadLocationException {
Document doc = fp.getDocument();
String oldText = doc.getText(0, doc.getLength());
StringBuilder sb = new StringBuilder(oldText);
sb.replace(offset, offset + length, oldText);
int len = string.length();
boolean isValidInteger = true;
for (int i = 0; i < len; i++) {
if (!Character.isDigit(string.charAt(i))) {
isValidInteger = false;
break;
}
}
if (isValidInteger && verifyText(sb.toString())) {
super.replace(fp, offset, length, string, aset);
} else Toolkit.getDefaultToolkit().beep();
}
/*
* use webView.loadData() to load from an HTML string
* 1. fetch the template according to survey style
* 2. replace survey's question and survey's options in the template
*/
private String genSurvey() throws IOException {
Log.i(TAG, "the style is: " + style);
// String templatePath = "component" + File.separator + getTemplatePath(this.style);
String templatePath = "component" + java.io.File.separator + surveyTemplate.get(this.style);
BufferedInputStream in =
new BufferedInputStream(container.$context().getAssets().open(templatePath));
// BufferedInputStream in = new BufferedInputStream(MediaUtil.openMedia(container.$form(),
// templatePath));
// read it with BufferedReader
BufferedReader br = new BufferedReader(new InputStreamReader(in));
StringBuilder sb = new StringBuilder();
String line;
while ((line = br.readLine()) != null) {
sb.append(line);
}
Log.i(TAG, "Before replace:" + sb.toString());
// A. generate question
// find question block start with <h1 id="_txt_qt">
String questionBlk = "<h1 id=\"_txt_qt\">";
int insertPos = sb.indexOf(questionBlk) + questionBlk.length();
int insertQuestionPos = sb.indexOf("Question", insertPos);
sb.replace(insertQuestionPos, insertQuestionPos + "Question".length(), this.question);
Log.i(TAG, "after replace question:" + sb.toString());
// B. generate options
// 1. find options block (depends on style)
// only "multipleChoice", "checkBox", and "chooseList" need to replace with options;
// 2. For "scale" style, the first three options will be specifying the
// min, max and default value of the scale
if (this.style.equals(this.MULTIPLECHOICE) || this.style.equals(this.CHECKBOX)) {
int startPos = sb.indexOf("</legend>") + "</legend>".length();
int endPos = sb.indexOf("</fieldset>");
Log.i(TAG, "before replace options:");
sb.replace(startPos, endPos, genOptions()); // replace with the filled-in options
}
if (this.style.equals(this.CHOOSELIST)) {
int startPos = sb.indexOf("<select name=\"\">") + "<select name=\"\">".length();
int endPos = sb.indexOf("</select>");
sb.replace(startPos, endPos, genOptions());
}
if (this.style.equals(this.SCALE)) {
if (!this.options.isEmpty() && this.options.size() == 3) {
// replace min
int sliderPos = sb.indexOf("input name=\"slider\"");
int startPosOfMin = sb.indexOf("min=\"1\"", sliderPos + "input name=\"slider\"".length());
// example: min="1"
sb.replace(startPosOfMin, startPosOfMin + 7, "min=\"" + this.options.get(0) + "\"");
// replace max
// example: replace max="10" to max="100"
int startPosOfMax = sb.indexOf("max=\"10\"", sliderPos + "input name=\"slider\"".length());
sb.replace(startPosOfMax, startPosOfMax + 8, "max=\"" + this.options.get(1) + "\"");
// replace default initial scale
// example: value="5"
int startPosOfDefault =
sb.indexOf("value=\"5\"", sliderPos + "input name=\"slider\"".length());
sb.replace(
startPosOfDefault, startPosOfDefault + 9, "value=\"" + this.options.get(2) + "\"");
} else {; // do nothing, use the template
}
}
return sb.toString();
}