private int getExplicitSizeFromTypeName(String name) {
		if (name == null) {
			return -1;
		}
		Matcher m = FIXED_SIZED_TYPE_NAME_PATTERN.matcher(name);
		if (m.matches()) {
			try {
				return Integer.parseInt(m.group(1));
			}
			catch (NumberFormatException e) {
				// shouldn't happen
			}
		}
		return -1;
	}
Regex to match common fixed-size type names like "int64", "int64_t", etc, by triggering
off some known size designators in the string.
<pre>
\D+ &larr; one or more non-digits
   (8|16|32|64|128) &larr; list of common sizes that we are triggering on
                   \D* &larr; with optional non-digit trailing characters
</pre>
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/dwarf/DWARFDataTypeManager.java