Extension to the general sequence operator (tactical). Now in addition to the form expr_0 ; [ expr_1 | ... | expr_n ] where expr_i could be empty, expr_i may be ".." or "expr ..". Note that "..." is a part of the metasyntax while ".." is a part of the object syntax. It may be necessary to enclose expr in parentheses. There may be at most one expr_i ending with "..". The number of expr_j not ending with ".." must be less than or equal to the number of subgoals generated by expr_0.

The idea is that if expr_i is "expr .." or "..", then the value of expr (or idtac in case "..") is applied to as many intermediate subgoals as necessary to make the number of tactics equal to the number of subgoals. More precisely, if expr_0 generates n subgoals then the command
expr_0; [expr_1 | ... | expr_i .. | ... | expr_m], where 1 <= i <= m, applies (the values of) expr_1, ..., expr_{i-1} to the first i - 1 subgoals, expr_i to the next n - m + 1 subgoals, and expr_{i+1}, ..., expr_m to the last m - i subgoals.



git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@9742 85f007b7-540e-0410-9357-904b9bb8a0f7

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