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Handle gracefully break requests of an empty string

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This commit is contained in:
Alayan 2018-10-14 17:44:37 +02:00
parent 893ac9d994
commit de2d24a571
1 changed files with 4 additions and 0 deletions
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4
src/utils/string_utils.cpp
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@ -926,6 +926,7 @@ namespace StringUtils
irr::core::dimension2du area; irr::core::dimension2du area;
// Algorithm : // Algorithm :
// 1)If the index exceed the work_copy string size, go to step 7a) // 1)If the index exceed the work_copy string size, go to step 7a)
// unless it is 0, in which case there is nothing to copy at all and it exits immediately.
// 2)We look at the character at the index // 2)We look at the character at the index
// 3)We check if the current character is a linebreak. If yes, go to step 7a) // 3)We check if the current character is a linebreak. If yes, go to step 7a)
// 4)We check if it is part of a multi-wchar unicode character. // 4)We check if it is part of a multi-wchar unicode character.
@ -947,6 +948,9 @@ namespace StringUtils
// Step 1 // Step 1
if (index >= work_copy.size()) if (index >= work_copy.size())
{ {
if (index==0)
break;
break_index = index-1; break_index = index-1;
goto push_text; // Avoid complicating things with checks on every single step goto push_text; // Avoid complicating things with checks on every single step
} }