feat: add trim/ltrim/rtrim with single input argument to remove spaces

Author: scgkiran

tests/cases/string/ltrim.test

@@ -24,7 +24,7 @@ ltrim('aaaaabc'::str, 'a'::str) [spaces_only:FALSE] = 'bc'::str
 ltrim('abcabcdef'::str, 'abc'::str) [spaces_only:FALSE] = 'def'::str
 ltrim('abccbadef'::str, 'abc'::str) [spaces_only:FALSE] = 'def'::str
 
-# ltrim with varchar
+# varchar
 ltrim('abc'::vchar<20>, ' '::vchar<5>) = 'abc'::vchar<20>
 ltrim('   abc'::vchar<20>, ' '::vchar<5>) = 'abc'::vchar<20>
 ltrim('abc   '::vchar<20>, ' '::vchar<5>) = 'abc   '::vchar<20>
@@ -35,3 +35,7 @@ ltrim('abc   '::vchar<20>) = 'abc   '::vchar<20>
 ltrim('   abc   '::vchar<20>) = 'abc   '::vchar<20>
 ltrim('aaaaabc'::vchar<20>, 'a'::vchar<9>) [spaces_only:False] = 'bc'::vchar<20>
 ltrim('abcabcdef'::vchar<20>, 'abc'::vchar<9>) [spaces_only:False] = 'def'::vchar<20>
+ltrim('   \t\tHello World'::vchar<30>) = '\t\tHello World'::vchar<30>
+ltrim('   \n\nHello World'::vchar<30>) = '\n\nHello World'::vchar<30>
+ltrim('   \r\rHello World'::vchar<30>) = '\r\rHello World'::vchar<30>
+ltrim('   \u2003Hello World'::vchar<30>) = '\u2003Hello World'::vchar<30>

tests/cases/string/rtrim.test

@@ -24,7 +24,7 @@ rtrim('aaaaabccccc'::str, 'c'::str) [spaces_only:FALSE] = 'aaaaab'::str
 rtrim('abcabcdef'::str, 'def'::str) [spaces_only:FALSE] = 'abcabc'::str
 rtrim('defabccba'::str, 'abc'::str) [spaces_only:FALSE] = 'def'::str
 
-# rtrim with varchar
+# varchar
 rtrim('abc'::vchar<20>, ' '::vchar<5>) = 'abc'::vchar<20>
 rtrim('   abc'::vchar<20>, ' '::vchar<5>) = '   abc'::vchar<20>
 rtrim('abc   '::vchar<20>, ' '::vchar<5>) = 'abc'::vchar<20>
@@ -35,3 +35,7 @@ rtrim('abc   '::vchar<20>) = 'abc'::vchar<20>
 rtrim('   abc   '::vchar<20>) = '   abc'::vchar<20>
 rtrim('aaaaabccccc'::vchar<20>, 'c'::vchar<9>) [spaces_only:False] = 'aaaaab'::vchar<20>
 rtrim('abcabcdef'::vchar<20>, 'def'::vchar<9>) [spaces_only:False] = 'abcabc'::vchar<20>
+rtrim('Hello World\t\t   '::vchar<30>) = 'Hello World\t\t'::vchar<30>
+rtrim('Hello World\n\n   '::vchar<30>) = 'Hello World\n\n'::vchar<30>
+rtrim('Hello World\r\r   '::vchar<30>) = 'Hello World\r\r'::vchar<30>
+rtrim('Hello World\u2003  '::vchar<30>) = 'Hello World\u2003'::vchar<30>

tests/cases/string/trim.test

@@ -24,7 +24,7 @@ trim('aaaaabcccccaaa'::str, 'a'::str) [spaces_only:False] = 'bccccc'::str
 trim('defabcabcdef'::str, 'def'::str) [spaces_only:False] = 'abcabc'::str
 trim('abcdefcbaa'::str, 'abc'::str) [spaces_only:False] = 'def'::str
 
-# trim with varchar
+# varchar
 trim('abc'::vchar<20>, ' '::vchar<5>) = 'abc'::vchar<20>
 trim('   abc'::vchar<20>, ' '::vchar<5>) = 'abc'::vchar<20>
 trim('abc   '::vchar<20>, ' '::vchar<5>) = 'abc'::vchar<20>
@@ -35,3 +35,7 @@ trim('abc   '::vchar<20>) = 'abc'::vchar<20>
 trim('   abc   '::vchar<20>) = 'abc'::vchar<20>
 trim('aaaaabcccccaaa'::vchar<20>, 'a'::vchar<9>) [spaces_only:False] = 'bccccc'::vchar<20>
 trim('defabcabcdef'::vchar<20>, 'def'::vchar<9>) [spaces_only:False] = 'abcabc'::vchar<20>
+trim('   \tHello World\t   '::vchar<30>) = '\tHello World\t'::vchar<30>
+trim('   \nHello World\n   '::vchar<30>) = '\nHello World\n'::vchar<30>
+trim('   \rHello World\r   '::vchar<30>) = '\rHello World\r'::vchar<30>
+trim('   \u2003Hello World\u2003  '::vchar<30>) = '\u2003Hello World\u2003'::vchar<30>

tests/test_extensions.py

@@ -24,7 +24,7 @@ def test_substrait_extension_coverage():
     all_test_files = load_all_testcases(test_case_dir)
     coverage = get_test_coverage(all_test_files, registry)
 
-    assert coverage.test_count >= 1128
+    assert coverage.test_count >= 1140
     assert (
         coverage.num_tests_with_no_matching_function == 0
     ), f"{coverage.num_tests_with_no_matching_function} tests with no matching function"