private void replace(Reader in, Writer out, boolean refs) throws IOException {
final String template = IoUtils.read(in);
final Matcher matcher = refStart.matcher(template);
int matchPos = 0;
int appendPos = 0;
while (matcher.find(matchPos)) {
final String name = matcher.group(1);
if (!snippets.containsKey(name)) {
throw new IllegalArgumentException("Snippet '" + name + "' not defined.");
}
if (refs) {
out.write(template.substring(appendPos, matcher.start()));
matchPos = appendPos = matcher.end();
} else {
out.write(template.substring(appendPos, matcher.end()));
appendPos = template.indexOf(refEnd, matcher.end());
if (appendPos < 0) {
throw new IllegalArgumentException(
"No refEnd marker found for refStart '"
+ template.substring(matcher.start(), matcher.end())
+ "'");
}
matchPos = appendPos + refEnd.length();
}
out.write(prefix);
out.write(snippets.get(name));
out.write(postfix);
}
out.write(template.substring(appendPos));
}
private Map<String, String> parse(Reader in, Map<String, String> snippets) throws IOException {
final String code = IoUtils.read(in);
final Matcher matcher = snippetStart.matcher(code);
int endPos = 0;
while (matcher.find(endPos)) {
endPos = code.indexOf(snippetEnd, matcher.end());
if (endPos < 0) {
throw new IllegalArgumentException(
"No snippetEnd marker found for snippetStart '"
+ code.substring(matcher.start(), matcher.end())
+ "'");
}
final String name = matcher.group(1);
if (snippets.containsKey(name)) {
throw new IllegalArgumentException("Snippet with name '" + name + "' already existing.");
}
snippets.put(name, trim(code.substring(matcher.end(), endPos)));
endPos += snippetEnd.length();
}
return snippets;
}