string_escape
Parses all C-style escape sequences in the given string and returns the parsed string.
// Escape Sequence | Meaning
// -----------------+--------------------------------
// \\ | Literal backslash
// \n | ASCII linefeed (LF)
// \r | ASCII carriage return (CR)
// \t | ASCII horizontal tab (TAB)
// \0 | ASCII null character (NUL)
// \ooo | Character with octal value ooo
// \xhh | Character with hex value hh- string_escape(str)
- Returns the given string with all escape sequences parsed.
COPY/// string_escape(str)
//
// Returns the given string with all escape sequences parsed.
//
// str string with C-style escape sequences, string
//
/// GMLscripts.com/license
{
var str,out,pos,tmp,ref,val;
str = argument0;
out = "";
ref = "0123456789abcdef";
while (str != "") {
pos = string_pos("\",str);
out += string_copy(str,1,pos-1);
str = string_delete(str,1,pos);
if (pos > 0) {
tmp = string_copy(str,1,1);
str = string_delete(str,1,1);
}
else {
out += str;
str = "";
tmp = "";
}
switch (tmp) {
case "\":
out += "\";
break;
case "r":
out += chr(13);
break;
case "n":
out += chr(10);
break;
case "t":
out += chr(9);
break;
case "x":
val = string_pos(string_copy(str,2,1),ref)-1;
if (val < 0) {
break;
}
val += 16*(string_pos(string_copy(str,1,1),ref)-1);
if (val >= 0) {
out += chr(val);
str = string_delete(str,1,2);
}
break;
case "0":
case "1":
case "2":
case "3":
if (string_copy(str,1,2) == string_digits(string_copy(str,1,2))) {
val = 64 * (string_pos(tmp,ref)-1);
val += 8 * (string_pos(string_copy(str,1,1),ref)-1);
val += string_pos(string_copy(str,2,1),ref)-1;
out += chr(val)
str = string_delete(str,1,2);
}
else if (tmp == "0") {
out += chr(0);
}
break;
}
}
return out;
}
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