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Hi. I need program using Flex and Bison doing operations on strings. It has to be able to: merge strings, reverse them, taking only first/last word, cutting first/last word, looking for maximal prefix-sufix. Also it needs to have the ability to assign string to variable. The simpler, the better. It should be connected in a way like in this tutorial: [login to view URL] Operations ofcourse should be done in c functions or c++. Examplary runtime: Input: a = test text it is Output: assigned Input: a Output: test text it is Input: b = second test yeah Output: assigned Input: merge(a,b) Output: test text it is second test yeah Input: reverse(a) Output: si ti txet tset Input: takefirst(a) Output: test Input: takelast(a) Output: is Input: cutfirst Output: text it is Input: cutlast(a) Output: test text it At the end I will need Flex file, Bison file and Makefile. Comments would be also welcome.