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namespace Wixl {
public errordomain Error {
FAILED,
FIXME,
}
namespace UUID {
[CCode (cname = "uuid_generate", cheader_filename = "uuid/uuid.h")]
internal extern static void generate ([CCode (array_length = false)] uchar[] uuid);
[CCode (cname = "uuid_unparse", cheader_filename = "uuid/uuid.h")]
internal extern static void unparse ([CCode (array_length = false)] uchar[] uuid,
[CCode (array_length = false)] uchar[] output);
}
public string uuid_generate () {
var udn = new uchar[50];
var id = new uchar[16];
UUID.generate (id);
UUID.unparse (id, udn);
return (string) udn;
}
public int enum_from_string (Type t, string str) throws GLib.Error {
var k = (EnumClass)t.class_ref ();
var v = k.get_value_by_nick (str);
if (v == null)
throw new Wixl.Error.FAILED ("Can't convert string to enum");
return v.value;
}
public void hash_table_add<G> (HashTable<G, G*> h, G o) {
h.replace (o, o);
}
public string add_braces (string str) {
if (str[0] == '{')
return str;
return "{" + str + "}";
}
public string get_uuid (owned string uuid) throws GLib.Error {
if (uuid == "*")
uuid = uuid_generate ();
uuid = add_braces (uuid);
uuid = uuid.up ();
// FIXME: validate
return uuid;
}
public long now () {
var tv = TimeVal ();
tv.get_current_time ();
return tv.tv_sec;
}
public uint64 time_to_filetime (long t) {
return (t + 134774ULL * 86400ULL) * 10000000ULL;
}
public string indent (string space, string text) {
var indented = "";
foreach (var l in text.split ("\n")) {
if (indented.length != 0)
indented += "\n";
if (l.length != 0)
indented += space + l;
}
return indented;
}
public string generate_id (string prefix, uint n, ...) {
var l = va_list ();
var args = new string[n];
for (var i = 0; n > 0; n--) {
string? val = l.arg ();
if (val == null)
continue;
args[i] = val; // FIXME: misc vala bug when +=
i += 1;
}
var data = string.joinv ("|", args);
var hash = Checksum.compute_for_string (ChecksumType.MD5, data);
var str = prefix + hash[0:32].up ();
return str;
}
public string random_id (string prefix) {
var data = new uint32[8] {};
for (var i = 0; i < 8; i++)
data[i] = Random.next_int ();
var hash = Checksum.compute_for_data (ChecksumType.MD5, (uint8[])data);
return prefix + hash[0:32].up ();
}
public bool parse_yesno (string? str, bool default = false) {
if (str == null)
return default;
return (str[0] == 'Y' || str[0] == 'y');
}
public string unquote (string str) {
if ((str[0] == '\'' && str[str.length-1] == '\'') ||
(str[0] == '"' && str[str.length-1] == '"'))
return str[1:-1];
return str;
}
public string remove_prefix (string prefix, string str) {
if (str.has_prefix (prefix))
return str[prefix.length:str.length];
return str;
}
public int find_closing_paren (string str) {
return_val_if_fail (str[0] == '(', -1);
var open_count = 1;
var close_count = 0;
for (var pos = 1; pos < str.length; pos++) {
if (str[pos] == '(')
open_count++;
else if (str[pos] == ')') {
close_count++;
if (open_count == close_count)
return pos;
}
}
return -1;
}
} // Wixl
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