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Simplify and fix handling of incomplete substitution strings

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This commit is contained in:
Cameron Gutman 2024-02-10 00:04:54 -06:00
commit 11c8cf176c
1 changed files with 8 additions and 6 deletions
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14
src/platform/windows/misc.cpp
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@ -711,13 +711,15 @@ namespace platf {
while ((match_pos = cmd_string.find_first_of(L'%', match_pos)) != std::wstring::npos) {
std::wstring match_replacement;
// Shell command replacements are strictly '%' followed by a single non-'%' character
auto next_char = std::tolower(match_pos + 1 < cmd_string.size() ? cmd_string.at(match_pos + 1) : 0);
switch (next_char) {
// No next character
case 0:
break;
// If no additional character exists after the match, the dangling '%' is stripped
if (match_pos + 1 == cmd_string.size()) {
cmd_string.erase(match_pos, 1);
break;
}
// Shell command replacements are strictly '%' followed by a single non-'%' character
auto next_char = std::tolower(cmd_string.at(match_pos + 1));
switch (next_char) {
// Escape character
case L'%':
// Skip this character and the next one