Don't consider empty strings or strings beginning with numbers as variable names.

This commit is contained in:
Scott Olson 2016-02-14 01:50:47 -06:00
parent 2111098a3a
commit f30fd9c47b

View file

@ -250,8 +250,9 @@ static int runProgram(const string & program, const Strings & args)
bool isVarName(const string & s)
{
if (s.size() > 0 && (s[0] == '-' || s[0] == '\''))
return false;
if (s.size() == 0) return false;
char c = s[0];
if ((c >= '0' && c <= '9') || c == '-' || c == '\'') return false;
for (auto & i : s)
if (!((i >= 'a' && i <= 'z') ||
(i >= 'A' && i <= 'Z') ||