If I have the following in my flex file, what does it do?
[\\[\\];] { return yytext[0]; }
If I have the following in my flex file, what does it do? [\\[\\];]
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If I have the following in my flex file, what does it do?
[\\[\\];] { return yytext[0]; }
It matches a token consisting of one of the characters
[,]or;. @AAT is is right in his explanation, though terminology wise “character class” is more common than “character range”.return yytext[0];returns the first character of the matched token. Since the regexp here matches only single character tokens, it returns the matched token itself as a character.