Mercurial > vim
changeset 32570:5d8cff99a027 v9.0.1617
patch 9.0.1617: charidx() result is not consistent with byteidx()
Commit: https://github.com/vim/vim/commit/577922b917e48285a7a312daf7b5bbc6e272939c
Author: Yegappan Lakshmanan <yegappan@yahoo.com>
Date: Thu Jun 8 17:09:45 2023 +0100
patch 9.0.1617: charidx() result is not consistent with byteidx()
Problem: charidx() and utf16idx() result is not consistent with byteidx().
Solution: When the index is equal to the length of the text return the
lenght of the text instead of -1. (Yegappan Lakshmanan,
closes #12503)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Thu, 08 Jun 2023 18:15:04 +0200 |
| parents | 6b110a59975a |
| children | 8543c6038230 |
| files | runtime/doc/builtin.txt src/evalfunc.c src/strings.c src/testdir/test_functions.vim src/testdir/test_vim9_builtin.vim src/version.c |
| diffstat | 6 files changed, 132 insertions(+), 52 deletions(-) [+] |
line wrap: on
line diff
--- a/runtime/doc/builtin.txt +++ b/runtime/doc/builtin.txt @@ -1528,11 +1528,13 @@ charidx({string}, {idx} [, {countcc} [, When {utf16} is present and TRUE, {idx} is used as the UTF-16 index in the String {expr} instead of as the byte index. - Returns -1 if the arguments are invalid or if {idx} is greater - than the index of the last byte in {string}. An error is - given if the first argument is not a string, the second - argument is not a number or when the third argument is present - and is not zero or one. + Returns -1 if the arguments are invalid or if there are less + than {idx} bytes. If there are exactly {idx} bytes the length + of the string in characters is returned. + + An error is given and -1 is returned if the first argument is + not a string, the second argument is not a number or when the + third argument is present and is not zero or one. See |byteidx()| and |byteidxcomp()| for getting the byte index from the character index and |utf16idx()| for getting the @@ -10119,8 +10121,8 @@ uniq({list} [, {func} [, {dict}]]) *un < *utf16idx()* utf16idx({string}, {idx} [, {countcc} [, {charidx}]]) - Same as |charidx()| but returns the UTF-16 index of the byte - at {idx} in {string} (after converting it to UTF-16). + Same as |charidx()| but returns the UTF-16 code unit index of + the byte at {idx} in {string} (after converting it to UTF-16). When {charidx} is present and TRUE, {idx} is used as the character index in the String {string} instead of as the byte @@ -10128,6 +10130,10 @@ utf16idx({string}, {idx} [, {countcc} [, An {idx} in the middle of a UTF-8 sequence is rounded upwards to the end of that sequence. + Returns -1 if the arguments are invalid or if there are less + than {idx} bytes in {string}. If there are exactly {idx} bytes + the length of the string in UTF-16 code units is returned. + See |byteidx()| and |byteidxcomp()| for getting the byte index from the UTF-16 index and |charidx()| for getting the character index from the UTF-16 index.
--- a/src/evalfunc.c +++ b/src/evalfunc.c @@ -1099,6 +1099,7 @@ static argcheck_T arg3_string_string_num static argcheck_T arg4_number_number_string_any[] = {arg_number, arg_number, arg_string, NULL}; static argcheck_T arg4_string_string_any_string[] = {arg_string, arg_string, NULL, arg_string}; static argcheck_T arg4_string_string_number_string[] = {arg_string, arg_string, arg_number, arg_string}; +static argcheck_T arg4_string_number_bool_bool[] = {arg_string, arg_number, arg_bool, arg_bool}; /* Function specific argument types (not covered by the above) */ static argcheck_T arg15_assert_fails[] = {arg_string_or_nr, arg_string_or_list_any, NULL, arg_number, arg_string}; static argcheck_T arg34_assert_inrange[] = {arg_float_or_nr, arg_float_or_nr, arg_float_or_nr, arg_string}; @@ -1814,7 +1815,7 @@ static funcentry_T global_functions[] = ret_number, f_charclass}, {"charcol", 1, 2, FEARG_1, arg2_string_or_list_number, ret_number, f_charcol}, - {"charidx", 2, 4, FEARG_1, arg3_string_number_bool, + {"charidx", 2, 4, FEARG_1, arg4_string_number_bool_bool, ret_number, f_charidx}, {"chdir", 1, 1, FEARG_1, arg1_string, ret_string, f_chdir}, @@ -2798,7 +2799,7 @@ static funcentry_T global_functions[] = ret_dict_any, f_undotree}, {"uniq", 1, 3, FEARG_1, arg13_sortuniq, ret_first_arg, f_uniq}, - {"utf16idx", 2, 4, FEARG_1, arg3_string_number_bool, + {"utf16idx", 2, 4, FEARG_1, arg4_string_number_bool_bool, ret_number, f_utf16idx}, {"values", 1, 1, FEARG_1, arg1_dict_any, ret_list_member, f_values}, @@ -3630,7 +3631,7 @@ f_copy(typval_T *argvars, typval_T *rett /* * Set the cursor position. - * If 'charcol' is TRUE, then use the column number as a character offset. + * If "charcol" is TRUE, then use the column number as a character offset. * Otherwise use the column number as a byte offset. */ static void
--- a/src/strings.c +++ b/src/strings.c @@ -1054,7 +1054,8 @@ byteidx_common(typval_T *argvars, typval if (in_vim9script() && (check_for_string_arg(argvars, 0) == FAIL - || check_for_number_arg(argvars, 1) == FAIL)) + || check_for_number_arg(argvars, 1) == FAIL + || check_for_opt_bool_arg(argvars, 2) == FAIL)) return; char_u *str = tv_get_string_chk(&argvars[0]); @@ -1158,7 +1159,14 @@ f_charidx(typval_T *argvars, typval_T *r for (p = str, len = 0; utf16idx ? idx >= 0 : p <= str + idx; len++) { if (*p == NUL) + { + // If the index is exactly the number of bytes or utf-16 code units + // in the string then return the length of the string in + // characters. + if (utf16idx ? (idx == 0) : (p == (str + idx))) + rettv->vval.v_number = len; return; + } if (utf16idx) { idx--; @@ -1775,7 +1783,14 @@ f_utf16idx(typval_T *argvars, typval_T * for (p = str, len = 0; charidx ? idx >= 0 : p <= str + idx; len++) { if (*p == NUL) + { + // If the index is exactly the number of bytes or characters in the + // string then return the length of the string in utf-16 code + // units. + if (charidx ? (idx == 0) : (p == (str + idx))) + rettv->vval.v_number = len; return; + } int clen = ptr2len(p); int c = (clen > 1) ? utf_ptr2char(p) : *p; if (c > 0xFFFF)
--- a/src/testdir/test_functions.vim +++ b/src/testdir/test_functions.vim @@ -1395,7 +1395,8 @@ func Test_charidx() call assert_equal(1, charidx(a, 3)) call assert_equal(2, charidx(a, 4)) call assert_equal(3, charidx(a, 7)) - call assert_equal(-1, charidx(a, 8)) + call assert_equal(4, charidx(a, 8)) + call assert_equal(-1, charidx(a, 9)) call assert_equal(-1, charidx(a, -1)) " count composing characters @@ -1403,14 +1404,18 @@ func Test_charidx() call assert_equal(2, a->charidx(2, 1)) call assert_equal(3, a->charidx(4, 1)) call assert_equal(5, a->charidx(7, 1)) - call assert_equal(-1, a->charidx(8, 1)) + call assert_equal(6, a->charidx(8, 1)) + call assert_equal(-1, a->charidx(9, 1)) " empty string - call assert_equal(-1, charidx('', 0)) - call assert_equal(-1, charidx('', 0, 1)) + call assert_equal(0, charidx('', 0)) + call assert_equal(-1, charidx('', 1)) + call assert_equal(0, charidx('', 0, 1)) + call assert_equal(-1, charidx('', 1, 1)) " error cases - call assert_equal(-1, charidx(test_null_string(), 0)) + call assert_equal(0, charidx(test_null_string(), 0)) + call assert_equal(-1, charidx(test_null_string(), 1)) call assert_fails('let x = charidx([], 1)', 'E1174:') call assert_fails('let x = charidx("abc", [])', 'E1210:') call assert_fails('let x = charidx("abc", 1, [])', 'E1212:') @@ -1422,10 +1427,10 @@ endfunc func Test_charidx_from_utf16_index() " string with single byte characters let str = "abc" - for i in range(3) + for i in range(4) call assert_equal(i, charidx(str, i, v:false, v:true)) endfor - call assert_equal(-1, charidx(str, 3, v:false, v:true)) + call assert_equal(-1, charidx(str, 4, v:false, v:true)) " string with two byte characters let str = "a漏漏b" @@ -1433,7 +1438,8 @@ func Test_charidx_from_utf16_index() call assert_equal(1, charidx(str, 1, v:false, v:true)) call assert_equal(2, charidx(str, 2, v:false, v:true)) call assert_equal(3, charidx(str, 3, v:false, v:true)) - call assert_equal(-1, charidx(str, 4, v:false, v:true)) + call assert_equal(4, charidx(str, 4, v:false, v:true)) + call assert_equal(-1, charidx(str, 5, v:false, v:true)) " string with four byte characters let str = "a馃槉馃槉b" @@ -1443,38 +1449,48 @@ func Test_charidx_from_utf16_index() call assert_equal(2, charidx(str, 3, v:false, v:true)) call assert_equal(2, charidx(str, 4, v:false, v:true)) call assert_equal(3, charidx(str, 5, v:false, v:true)) - call assert_equal(-1, charidx(str, 6, v:false, v:true)) + call assert_equal(4, charidx(str, 6, v:false, v:true)) + call assert_equal(-1, charidx(str, 7, v:false, v:true)) " string with composing characters let str = '-a虂-b虂' for i in str->strcharlen()->range() call assert_equal(i, charidx(str, i, v:false, v:true)) endfor - call assert_equal(-1, charidx(str, 4, v:false, v:true)) + call assert_equal(4, charidx(str, 4, v:false, v:true)) + call assert_equal(-1, charidx(str, 5, v:false, v:true)) for i in str->strchars()->range() call assert_equal(i, charidx(str, i, v:true, v:true)) endfor - call assert_equal(-1, charidx(str, 6, v:true, v:true)) + call assert_equal(6, charidx(str, 6, v:true, v:true)) + call assert_equal(-1, charidx(str, 7, v:true, v:true)) " string with multiple composing characters let str = '-a台虂-a台虂' for i in str->strcharlen()->range() call assert_equal(i, charidx(str, i, v:false, v:true)) endfor - call assert_equal(-1, charidx(str, 4, v:false, v:true)) + call assert_equal(4, charidx(str, 4, v:false, v:true)) + call assert_equal(-1, charidx(str, 5, v:false, v:true)) for i in str->strchars()->range() call assert_equal(i, charidx(str, i, v:true, v:true)) endfor - call assert_equal(-1, charidx(str, 8, v:true, v:true)) + call assert_equal(8, charidx(str, 8, v:true, v:true)) + call assert_equal(-1, charidx(str, 9, v:true, v:true)) " empty string - call assert_equal(-1, charidx('', 0, v:false, v:true)) - call assert_equal(-1, charidx('', 0, v:true, v:true)) + call assert_equal(0, charidx('', 0, v:false, v:true)) + call assert_equal(-1, charidx('', 1, v:false, v:true)) + call assert_equal(0, charidx('', 0, v:true, v:true)) + call assert_equal(-1, charidx('', 1, v:true, v:true)) " error cases - call assert_equal(-1, charidx('', 0, v:false, v:true)) - call assert_equal(-1, charidx('', 0, v:true, v:true)) - call assert_equal(-1, charidx(test_null_string(), 0, v:false, v:true)) + call assert_equal(0, charidx('', 0, v:false, v:true)) + call assert_equal(-1, charidx('', 1, v:false, v:true)) + call assert_equal(0, charidx('', 0, v:true, v:true)) + call assert_equal(-1, charidx('', 1, v:true, v:true)) + call assert_equal(0, charidx(test_null_string(), 0, v:false, v:true)) + call assert_equal(-1, charidx(test_null_string(), 1, v:false, v:true)) call assert_fails('let x = charidx("abc", 1, v:false, [])', 'E1212:') call assert_fails('let x = charidx("abc", 1, v:true, [])', 'E1212:') endfunc @@ -1483,10 +1499,10 @@ endfunc func Test_utf16idx_from_byteidx() " UTF-16 index of a string with single byte characters let str = "abc" - for i in range(3) + for i in range(4) call assert_equal(i, utf16idx(str, i)) endfor - call assert_equal(-1, utf16idx(str, 3)) + call assert_equal(-1, utf16idx(str, 4)) " UTF-16 index of a string with two byte characters let str = 'a漏漏b' @@ -1496,7 +1512,8 @@ func Test_utf16idx_from_byteidx() call assert_equal(2, str->utf16idx(3)) call assert_equal(2, str->utf16idx(4)) call assert_equal(3, str->utf16idx(5)) - call assert_equal(-1, str->utf16idx(6)) + call assert_equal(4, str->utf16idx(6)) + call assert_equal(-1, str->utf16idx(7)) " UTF-16 index of a string with four byte characters let str = 'a馃槉馃槉b' @@ -1510,7 +1527,8 @@ func Test_utf16idx_from_byteidx() call assert_equal(4, utf16idx(str, 7)) call assert_equal(4, utf16idx(str, 8)) call assert_equal(5, utf16idx(str, 9)) - call assert_equal(-1, utf16idx(str, 10)) + call assert_equal(6, utf16idx(str, 10)) + call assert_equal(-1, utf16idx(str, 11)) " UTF-16 index of a string with composing characters let str = '-a虂-b虂' @@ -1522,7 +1540,8 @@ func Test_utf16idx_from_byteidx() call assert_equal(3, utf16idx(str, 5)) call assert_equal(3, utf16idx(str, 6)) call assert_equal(3, utf16idx(str, 7)) - call assert_equal(-1, utf16idx(str, 8)) + call assert_equal(4, utf16idx(str, 8)) + call assert_equal(-1, utf16idx(str, 9)) call assert_equal(0, utf16idx(str, 0, v:true)) call assert_equal(1, utf16idx(str, 1, v:true)) call assert_equal(2, utf16idx(str, 2, v:true)) @@ -1531,7 +1550,8 @@ func Test_utf16idx_from_byteidx() call assert_equal(4, utf16idx(str, 5, v:true)) call assert_equal(5, utf16idx(str, 6, v:true)) call assert_equal(5, utf16idx(str, 7, v:true)) - call assert_equal(-1, utf16idx(str, 8, v:true)) + call assert_equal(6, utf16idx(str, 8, v:true)) + call assert_equal(-1, utf16idx(str, 9, v:true)) " string with multiple composing characters let str = '-a台虂-a台虂' @@ -1547,7 +1567,8 @@ func Test_utf16idx_from_byteidx() call assert_equal(3, utf16idx(str, 9)) call assert_equal(3, utf16idx(str, 10)) call assert_equal(3, utf16idx(str, 11)) - call assert_equal(-1, utf16idx(str, 12)) + call assert_equal(4, utf16idx(str, 12)) + call assert_equal(-1, utf16idx(str, 13)) call assert_equal(0, utf16idx(str, 0, v:true)) call assert_equal(1, utf16idx(str, 1, v:true)) call assert_equal(2, utf16idx(str, 2, v:true)) @@ -1560,16 +1581,21 @@ func Test_utf16idx_from_byteidx() call assert_equal(6, utf16idx(str, 9, v:true)) call assert_equal(7, utf16idx(str, 10, v:true)) call assert_equal(7, utf16idx(str, 11, v:true)) - call assert_equal(-1, utf16idx(str, 12, v:true)) + call assert_equal(8, utf16idx(str, 12, v:true)) + call assert_equal(-1, utf16idx(str, 13, v:true)) " empty string - call assert_equal(-1, utf16idx('', 0)) - call assert_equal(-1, utf16idx('', 0, v:true)) + call assert_equal(0, utf16idx('', 0)) + call assert_equal(-1, utf16idx('', 1)) + call assert_equal(0, utf16idx('', 0, v:true)) + call assert_equal(-1, utf16idx('', 1, v:true)) " error cases - call assert_equal(-1, utf16idx("", 0)) + call assert_equal(0, utf16idx("", 0)) + call assert_equal(-1, utf16idx("", 1)) call assert_equal(-1, utf16idx("abc", -1)) - call assert_equal(-1, utf16idx(test_null_string(), 0)) + call assert_equal(0, utf16idx(test_null_string(), 0)) + call assert_equal(-1, utf16idx(test_null_string(), 1)) call assert_fails('let l = utf16idx([], 0)', 'E1174:') call assert_fails('let l = utf16idx("ab", [])', 'E1210:') call assert_fails('let l = utf16idx("ab", 0, [])', 'E1212:') @@ -1581,14 +1607,16 @@ func Test_utf16idx_from_charidx() for i in str->strcharlen()->range() call assert_equal(i, utf16idx(str, i, v:false, v:true)) endfor - call assert_equal(-1, utf16idx(str, 3, v:false, v:true)) + call assert_equal(3, utf16idx(str, 3, v:false, v:true)) + call assert_equal(-1, utf16idx(str, 4, v:false, v:true)) " UTF-16 index of a string with two byte characters let str = "a漏漏b" for i in str->strcharlen()->range() call assert_equal(i, utf16idx(str, i, v:false, v:true)) endfor - call assert_equal(-1, utf16idx(str, 4, v:false, v:true)) + call assert_equal(4, utf16idx(str, 4, v:false, v:true)) + call assert_equal(-1, utf16idx(str, 5, v:false, v:true)) " UTF-16 index of a string with four byte characters let str = "a馃槉馃槉b" @@ -1596,36 +1624,44 @@ func Test_utf16idx_from_charidx() call assert_equal(2, utf16idx(str, 1, v:false, v:true)) call assert_equal(4, utf16idx(str, 2, v:false, v:true)) call assert_equal(5, utf16idx(str, 3, v:false, v:true)) - call assert_equal(-1, utf16idx(str, 4, v:false, v:true)) + call assert_equal(6, utf16idx(str, 4, v:false, v:true)) + call assert_equal(-1, utf16idx(str, 5, v:false, v:true)) " UTF-16 index of a string with composing characters let str = '-a虂-b虂' for i in str->strcharlen()->range() call assert_equal(i, utf16idx(str, i, v:false, v:true)) endfor - call assert_equal(-1, utf16idx(str, 4, v:false, v:true)) + call assert_equal(4, utf16idx(str, 4, v:false, v:true)) + call assert_equal(-1, utf16idx(str, 5, v:false, v:true)) for i in str->strchars()->range() call assert_equal(i, utf16idx(str, i, v:true, v:true)) endfor - call assert_equal(-1, utf16idx(str, 6, v:true, v:true)) + call assert_equal(6, utf16idx(str, 6, v:true, v:true)) + call assert_equal(-1, utf16idx(str, 7, v:true, v:true)) " string with multiple composing characters let str = '-a台虂-a台虂' for i in str->strcharlen()->range() call assert_equal(i, utf16idx(str, i, v:false, v:true)) endfor - call assert_equal(-1, utf16idx(str, 4, v:false, v:true)) + call assert_equal(4, utf16idx(str, 4, v:false, v:true)) + call assert_equal(-1, utf16idx(str, 5, v:false, v:true)) for i in str->strchars()->range() call assert_equal(i, utf16idx(str, i, v:true, v:true)) endfor - call assert_equal(-1, utf16idx(str, 8, v:true, v:true)) + call assert_equal(8, utf16idx(str, 8, v:true, v:true)) + call assert_equal(-1, utf16idx(str, 9, v:true, v:true)) " empty string - call assert_equal(-1, utf16idx('', 0, v:false, v:true)) - call assert_equal(-1, utf16idx('', 0, v:true, v:true)) + call assert_equal(0, utf16idx('', 0, v:false, v:true)) + call assert_equal(-1, utf16idx('', 1, v:false, v:true)) + call assert_equal(0, utf16idx('', 0, v:true, v:true)) + call assert_equal(-1, utf16idx('', 1, v:true, v:true)) " error cases - call assert_equal(-1, utf16idx(test_null_string(), 0, v:true, v:true)) + call assert_equal(0, utf16idx(test_null_string(), 0, v:true, v:true)) + call assert_equal(-1, utf16idx(test_null_string(), 1, v:true, v:true)) call assert_fails('let l = utf16idx("ab", 0, v:false, [])', 'E1212:') endfunc
--- a/src/testdir/test_vim9_builtin.vim +++ b/src/testdir/test_vim9_builtin.vim @@ -460,6 +460,7 @@ enddef def Test_byteidx() v9.CheckDefAndScriptFailure(['byteidx(1, 2)'], ['E1013: Argument 1: type mismatch, expected string but got number', 'E1174: String required for argument 1']) v9.CheckDefAndScriptFailure(['byteidx("a", "b")'], ['E1013: Argument 2: type mismatch, expected number but got string', 'E1210: Number required for argument 2']) + v9.CheckDefAndScriptFailure(['byteidx("a", 0, "")'], ['E1013: Argument 3: type mismatch, expected bool but got string', 'E1212: Bool required for argument 3']) byteidx('', 0)->assert_equal(0) byteidx('', 1)->assert_equal(-1) enddef @@ -467,6 +468,7 @@ enddef def Test_byteidxcomp() v9.CheckDefAndScriptFailure(['byteidxcomp(1, 2)'], ['E1013: Argument 1: type mismatch, expected string but got number', 'E1174: String required for argument 1']) v9.CheckDefAndScriptFailure(['byteidxcomp("a", "b")'], ['E1013: Argument 2: type mismatch, expected number but got string', 'E1210: Number required for argument 2']) + v9.CheckDefAndScriptFailure(['byteidxcomp("a", 0, "")'], ['E1013: Argument 3: type mismatch, expected bool but got string', 'E1212: Bool required for argument 3']) enddef def Test_call_call() @@ -702,7 +704,8 @@ def Test_charidx() v9.CheckDefAndScriptFailure(['charidx(0z10, 1)'], ['E1013: Argument 1: type mismatch, expected string but got blob', 'E1174: String required for argument 1']) v9.CheckDefAndScriptFailure(['charidx("a", "b")'], ['E1013: Argument 2: type mismatch, expected number but got string', 'E1210: Number required for argument 2']) v9.CheckDefAndScriptFailure(['charidx("a", 1, "")'], ['E1013: Argument 3: type mismatch, expected bool but got string', 'E1212: Bool required for argument 3']) - charidx('', 0)->assert_equal(-1) + v9.CheckDefAndScriptFailure(['charidx("a", 1, 0, "")'], ['E1013: Argument 4: type mismatch, expected bool but got string', 'E1212: Bool required for argument 4']) + charidx('', 0)->assert_equal(0) charidx('', 1)->assert_equal(-1) enddef @@ -4305,6 +4308,14 @@ def Test_strtrans() strtrans('')->assert_equal('') enddef +def Test_strutf16len() + v9.CheckDefAndScriptFailure(['strutf16len([])'], ['E1013: Argument 1: type mismatch, expected string but got list<unknown>', 'E1174: String required for argument 1']) + v9.CheckDefAndScriptFailure(['strutf16len("a", "")'], ['E1013: Argument 2: type mismatch, expected bool but got string', 'E1212: Bool required for argument 2']) + ""->strutf16len()->assert_equal(0) + '-a台虂-a台虂'->strutf16len(true)->assert_equal(8) + '-a台虂-a台虂'->strutf16len(false)->assert_equal(4) +enddef + def Test_strwidth() v9.CheckDefAndScriptFailure(['strwidth(10)'], ['E1013: Argument 1: type mismatch, expected string but got number', 'E1174: String required for argument 1']) assert_equal(4, strwidth('abcd')) @@ -4727,6 +4738,15 @@ def Test_uniq() v9.CheckDefFailure(['var l: list<number> = uniq(["a", "b"])'], 'E1012: Type mismatch; expected list<number> but got list<string>') enddef +def Test_utf16idx() + v9.CheckDefAndScriptFailure(['utf16idx(0z10, 1)'], ['E1013: Argument 1: type mismatch, expected string but got blob', 'E1174: String required for argument 1']) + v9.CheckDefAndScriptFailure(['utf16idx("a", "b")'], ['E1013: Argument 2: type mismatch, expected number but got string', 'E1210: Number required for argument 2']) + v9.CheckDefAndScriptFailure(['utf16idx("a", 1, "")'], ['E1013: Argument 3: type mismatch, expected bool but got string', 'E1212: Bool required for argument 3']) + v9.CheckDefAndScriptFailure(['utf16idx("a", 1, 0, "")'], ['E1013: Argument 4: type mismatch, expected bool but got string', 'E1212: Bool required for argument 4']) + utf16idx('', 0)->assert_equal(0) + utf16idx('', 1)->assert_equal(-1) +enddef + def Test_uniq_const() var lines =<< trim END const l = [1, 2, 3, 4]