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Misc_Helpers.ttcn: Add some more string handling API helpers 

These are currently used by code in AMI_Functions doing some workaround
for TEXT decoder limitations.

They can be merged independently now since anyway they are totally
generic and may be useful for future users.

Change-Id: I3d6da125a10807b7a2f3ecad8145a046a322c7d6
This commit is contained in:
Pau Espin 2024-05-08 16:54:21 +02:00
parent 4362dbd088
commit 9c83471a5b
1 changed files with 25 additions and 0 deletions
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25
library/Misc_Helpers.ttcn
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@ -79,6 +79,31 @@ function f_strstr_count(in charstring str, in charstring sub_str) return integer
return count;
}
/* Return true if str ends exactly with token: */
function f_str_endswith(charstring str, charstring token) return boolean
{
if (lengthof(str) < lengthof(token)) {
return false;
}
var charstring str_end := substr(str, lengthof(str) - lengthof(token), lengthof(token));
return str_end == token;
}
/* Replace all matches of token "find" with "repl" in "str" */
function f_str_replace(charstring str, charstring find, charstring repl) return charstring
{
var integer pos := f_strstr(str, find, 0);
if (pos < 0) {
return str;
}
var charstring prefix := substr(str, 0, pos);
var integer suffix_pos := pos + lengthof(find);
var charstring suffix := substr(str, suffix_pos, lengthof(str) - suffix_pos);
var charstring new_str := prefix & repl & f_str_replace(suffix, find, repl);
return new_str;
}
type record of charstring ro_charstring;
function f_str_split(charstring str, charstring delim := "\n") return ro_charstring
{