In-Depth Coverage of the Icon Programming Language String Synthesis
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چکیده
Our solution is given below. First we need procedures analogous to the procedure used for modeling string scanning. In addition to a subject, there’s now an “object”, which is the result of string synthesis. There now also are two positions, one in the subject and one in the object. The global identifiers subject, object, s_pos, and o_pos are used for these four “state variables” in the procedures that follow. (In a real implementation, these would be keywords.)
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In-Depth Coverage of the Icon Programming Language
10. Avoid long lines. Instead, continue expressions on as many lines as are needed for easy readability. See the first two issues of The Icon Analyst for the proper techniques for breaking lines. Similarly, continue long string and cset literals on several lines if that’s necessary to make them readable. See Appendix A of the second edition of The Icon Programming Language for the method of con...
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Here's the challenge: Model string synthesis with the mapping expr1 ? expr2 → Eform(Bform(expr1),expr2) and provide appropriate procedures for Bform() and Eform(). Use the global variables subject, s_pos, object, and o_pos for the state variables. (Do not use &subject and &pos.) In addition, provide the following analysis and synthesis procedures: • smove(i) and stab(i), which are the same as m...
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