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- ccccaaaasssseeee((((3333TTTTccccllll)))) ccccaaaasssseeee((((3333TTTTccccllll))))
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- NNNNAAAAMMMMEEEE
- case - Evaluate one of several scripts, depending on a given value
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- ccccaaaasssseeee _s_t_r_i_n_g ?iiiinnnn? _p_a_t_L_i_s_t _b_o_d_y ?_p_a_t_L_i_s_t _b_o_d_y ...?
- ccccaaaasssseeee _s_t_r_i_n_g ?iiiinnnn? {_p_a_t_L_i_s_t _b_o_d_y ?_p_a_t_L_i_s_t _b_o_d_y ...?}
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- _N_o_t_e: _t_h_e ccccaaaasssseeee _c_o_m_m_a_n_d _i_s _o_b_s_o_l_e_t_e _a_n_d _i_s _s_u_p_p_o_r_t_e_d _o_n_l_y _f_o_r _b_a_c_k_w_a_r_d
- _c_o_m_p_a_t_i_b_i_l_i_t_y. _A_t _s_o_m_e _p_o_i_n_t _i_n _t_h_e _f_u_t_u_r_e _i_t _m_a_y _b_e _r_e_m_o_v_e_d _e_n_t_i_r_e_l_y.
- _Y_o_u _s_h_o_u_l_d _u_s_e _t_h_e sssswwwwiiiittttcccchhhh _c_o_m_m_a_n_d _i_n_s_t_e_a_d.
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- The ccccaaaasssseeee command matches _s_t_r_i_n_g against each of the _p_a_t_L_i_s_t arguments in
- order. Each _p_a_t_L_i_s_t argument is a list of one or more patterns. If any
- of these patterns matches _s_t_r_i_n_g then ccccaaaasssseeee evaluates the following _b_o_d_y
- argument by passing it recursively to the Tcl interpreter and returns the
- result of that evaluation. Each _p_a_t_L_i_s_t argument consists of a single
- pattern or list of patterns. Each pattern may contain any of the wild-
- cards described under ssssttttrrrriiiinnnngggg mmmmaaaattttcccchhhh. If a _p_a_t_L_i_s_t argument is ddddeeeeffffaaaauuuulllltttt,
- the corresponding body will be evaluated if no _p_a_t_L_i_s_t matches _s_t_r_i_n_g.
- If no _p_a_t_L_i_s_t argument matches _s_t_r_i_n_g and no default is given, then the
- ccccaaaasssseeee command returns an empty string.
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- Two syntaxes are provided for the _p_a_t_L_i_s_t and _b_o_d_y arguments. The first
- uses a separate argument for each of the patterns and commands; this form
- is convenient if substitutions are desired on some of the patterns or
- commands. The second form places all of the patterns and commands
- together into a single argument; the argument must have proper list
- structure, with the elements of the list being the patterns and commands.
- The second form makes it easy to construct multi-line case commands,
- since the braces around the whole list make it unnecessary to include a
- backslash at the end of each line. Since the _p_a_t_L_i_s_t arguments are in
- braces in the second form, no command or variable substitutions are
- performed on them; this makes the behavior of the second form different
- than the first form in some cases.
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- KKKKEEEEYYYYWWWWOOOORRRRDDDDSSSS
- case, match, regular expression
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- PPPPaaaaggggeeee 1111
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