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Don’t ref past end of string 

fixes #830
This commit is contained in:
Phil Nash 2017-03-13 10:22:02 +00:00
parent 4101ff314a
commit db9866677e
1 changed files with 3 additions and 1 deletions
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4
include/external/clara.h vendored
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@ -554,12 +554,13 @@ namespace Clara {
} }
void parseIntoTokens( std::string const& arg, std::vector<Token>& tokens ) { void parseIntoTokens( std::string const& arg, std::vector<Token>& tokens ) {
for( std::size_t i = 0; i <= arg.size(); ++i ) { for( std::size_t i = 0; i < arg.size(); ++i ) {
char c = arg[i]; char c = arg[i];
if( c == '"' ) if( c == '"' )
inQuotes = !inQuotes; inQuotes = !inQuotes;
mode = handleMode( i, c, arg, tokens ); mode = handleMode( i, c, arg, tokens );
} }
mode = handleMode( arg.size(), '\0', arg, tokens );
} }
Mode handleMode( std::size_t i, char c, std::string const& arg, std::vector<Token>& tokens ) { Mode handleMode( std::size_t i, char c, std::string const& arg, std::vector<Token>& tokens ) {
switch( mode ) { switch( mode ) {
@ -592,6 +593,7 @@ namespace Clara {
default: from = i; return ShortOpt; default: from = i; return ShortOpt;
} }
} }
Mode handleOpt( std::size_t i, char c, std::string const& arg, std::vector<Token>& tokens ) { Mode handleOpt( std::size_t i, char c, std::string const& arg, std::vector<Token>& tokens ) {
if( std::string( ":=\0", 3 ).find( c ) == std::string::npos ) if( std::string( ":=\0", 3 ).find( c ) == std::string::npos )
return mode; return mode;