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core: fix cut of chars in "cutscr" of evaluated strings

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This fixes two problems:
- stop before max char displayed with wide chars
- preserve combining chars in the output

Before the fix (wrong):

>> ${cutscr:3,+,こんにちは世界}
== [こん+]
>> ${cutscr:1,+,a${\u0308}}
== [a+]

After the fix (OK):

>> ${cutscr:3,+,こんにちは世界}
== [こ+]
>> ${cutscr:1,+,a${\u0308}}
== [ä]
This commit is contained in:
Sébastien Helleu
2017-03-28 20:45:31 +02:00
parent ee82ba7461
commit 3045021430
2 changed files with 33 additions and 1 deletions
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tests/unit/core/test-eval.cpp
+30
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@@ -220,16 +220,46 @@ TEST(Eval, EvalExpression)
/* test cut of chars */
WEE_CHECK_EVAL("", "${cut:0,,}");
WEE_CHECK_EVAL("", "${cutscr:0,,}");
WEE_CHECK_EVAL("", "${cut:0,+,}");
WEE_CHECK_EVAL("", "${cutscr:0,+,}");
WEE_CHECK_EVAL("", "${cut:0,,test}");
WEE_CHECK_EVAL("", "${cutscr:0,,test}");
WEE_CHECK_EVAL("+", "${cut:0,+,test}");
WEE_CHECK_EVAL("+", "${cutscr:0,+,test}");
WEE_CHECK_EVAL("te", "${cut:2,,test}");
WEE_CHECK_EVAL("te", "${cutscr:2,,test}");
WEE_CHECK_EVAL("te+", "${cut:2,+,test}");
WEE_CHECK_EVAL("te+", "${cutscr:2,+,test}");
WEE_CHECK_EVAL("éà", "${cut:2,,éàô}");
WEE_CHECK_EVAL("éà", "${cutscr:2,,éàô}");
WEE_CHECK_EVAL("éà+", "${cut:2,+,éàô}");
WEE_CHECK_EVAL("éà+", "${cutscr:2,+,éàô}");
WEE_CHECK_EVAL("こ+", "${cut:1,+,こんにちは世界}");
WEE_CHECK_EVAL("+", "${cutscr:1,+,こんにちは世界}");
WEE_CHECK_EVAL("こん+", "${cut:2,+,こんにちは世界}");
WEE_CHECK_EVAL("こ+", "${cutscr:2,+,こんにちは世界}");
WEE_CHECK_EVAL("こんに+", "${cut:3,+,こんにちは世界}");
WEE_CHECK_EVAL("こ+", "${cutscr:3,+,こんにちは世界}");
WEE_CHECK_EVAL("こんにち+", "${cut:4,+,こんにちは世界}");
WEE_CHECK_EVAL("こん+", "${cutscr:4,+,こんにちは世界}");
WEE_CHECK_EVAL("こんにちは+", "${cut:5,+,こんにちは世界}");
WEE_CHECK_EVAL("こん+", "${cutscr:4,+,こんにちは世界}");
WEE_CHECK_EVAL("こん+", "${cutscr:4,+,こんにちは世界}");
/* test color */
WEE_CHECK_EVAL(gui_color_get_custom ("green"), "${color:green}");
WEE_CHECK_EVAL(gui_color_get_custom ("*214"), "${color:*214}");