core: add range of chars in evaluation of expressions with `chars:xxx`

1 files changed, 19 insertions, 0 deletions

diff --git a/tests/unit/core/test-core-eval.cpp b/tests/unit/core/test-core-eval.cpp
index e1d9a3cff..248c680fe 100644
--- a/tests/unit/core/test-core-eval.cpp
+++ b/tests/unit/core/test-core-eval.cpp
@@ -516,6 +516,25 @@ TEST(CoreEval, EvalExpression)
     WEE_CHECK_EVAL("\t", "${\\t}");
     WEE_CHECK_EVAL("\t", "${esc:\t}");
 
+    /* test range of chars */
+    WEE_CHECK_EVAL("0123456789", "${chars:digit}");
+    WEE_CHECK_EVAL("0123456789abcdefABCDEF", "${chars:xdigit}");
+    WEE_CHECK_EVAL("abcdefghijklmnopqrstuvwxyz", "${chars:lower}");
+    WEE_CHECK_EVAL("ABCDEFGHIJKLMNOPQRSTUVWXYZ", "${chars:upper}");
+    WEE_CHECK_EVAL("abcdefghijklmnopqrstuvwxyz"
+                   "ABCDEFGHIJKLMNOPQRSTUVWXYZ", "${chars:alpha}");
+    WEE_CHECK_EVAL("abcdefghijklmnopqrstuvwxyz"
+                   "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                   "0123456789", "${chars:alnum}");
+    WEE_CHECK_EVAL("0123456789", "${chars:0-9}");
+    WEE_CHECK_EVAL("abcdefgh", "${chars:a-h}");
+    WEE_CHECK_EVAL("JKLMNOPQRSTUV", "${chars:J-V}");
+    WEE_CHECK_EVAL("é", "${chars:é-é}");
+    WEE_CHECK_EVAL("àáâãäåæçèé", "${chars:à-é}");
+    WEE_CHECK_EVAL("←↑→↓", "${chars:←-↓}");  /* U+2190 - U+2193 */
+    WEE_CHECK_EVAL("▁▂▃▄▅▆▇█▉▊▋▌▍▎▏", "${chars:▁-▏}");  /* U+2581 - U+258F */
+    WEE_CHECK_EVAL("", "${chars:Z-A}");  /* invalid (reverse) */
+
     /* test case conversion: to lower case */
     WEE_CHECK_EVAL("", "${lower:}");
     WEE_CHECK_EVAL("this is a test", "${lower:This is a TEST}");