Merge pull request #1943 from pguyot/w44/add-stub-for-string-jaro_similarity-2

Add stub for `string:jaro_similarity/2`

These changes are made under both the "Apache 2.0" and the "GNU Lesser General
Public License 2.1 or later" license terms (dual license).

SPDX-License-Identifier: Apache-2.0 OR LGPL-2.1-or-later

Author: bettio

doc/src/stubbed-functions.md

@@ -31,6 +31,12 @@ The following functions are currently stubbed in AtomVM and always return a fixe
 |--------|----------|--------------|-------|
 | `io` | `set_ops/1,2` | `ok` | Standard IO options are currently ignored |
 
+### Other functions
+
+| Module | Function | Return Value | Notes |
+|--------|----------|--------------|-------|
+| `string` | `jaro_similarity/2` | `0.0` |  |
+
 ## Important Considerations
 
 When using AtomVM, be aware that stubbed functions will not provide the functionality you might

libs/estdlib/src/string.erl

@@ -27,7 +27,15 @@
 %%-----------------------------------------------------------------------------
 -module(string).
 
--export([to_upper/1, to_lower/1, split/2, split/3, trim/1, trim/2, find/2, find/3, length/1]).
+-export([
+    to_upper/1,
+    to_lower/1,
+    split/2, split/3,
+    trim/1, trim/2,
+    find/2, find/3,
+    length/1,
+    jaro_similarity/2
+]).
 
 %%-----------------------------------------------------------------------------
 %% @param Input a string or character to convert
@@ -262,3 +270,15 @@ length(String) when is_list(String) ->
     erlang:length(String);
 length(String) when is_binary(String) ->
     erlang:length(unicode:characters_to_list(String)).
+
+%%-----------------------------------------------------------------------------
+%% @param String1 first string to compare
+%% @param String2 second string to compare
+%% @doc Calculate the Jaro similarity between two strings (stub implementation).
+%%
+%% This is a stub implementation that always returns 0.0, used for compatibility.
+%% @end
+%%-----------------------------------------------------------------------------
+-spec jaro_similarity(String1 :: unicode:chardata(), String2 :: unicode:chardata()) -> float().
+jaro_similarity(_String1, _String2) ->
+    0.0.