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- ffffoooorrrr((((3333TTTTccccllll)))) ffffoooorrrr((((3333TTTTccccllll))))
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- NNNNAAAAMMMMEEEE
- for - ``For'' loop
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- SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
- ffffoooorrrr _s_t_a_r_t _t_e_s_t _n_e_x_t _b_o_d_y
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- DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
- FFFFoooorrrr is a looping command, similar in structure to the C ffffoooorrrr statement.
- The _s_t_a_r_t, _n_e_x_t, and _b_o_d_y arguments must be Tcl command strings, and _t_e_s_t
- is an expression string. The ffffoooorrrr command first invokes the Tcl
- interpreter to execute _s_t_a_r_t. Then it repeatedly evaluates _t_e_s_t as an
- expression; if the result is non-zero it invokes the Tcl interpreter on
- _b_o_d_y, then invokes the Tcl interpreter on _n_e_x_t, then repeats the loop.
- The command terminates when _t_e_s_t evaluates to 0. If a ccccoooonnnnttttiiiinnnnuuuueeee command
- is invoked within _b_o_d_y then any remaining commands in the current
- execution of _b_o_d_y are skipped; processing continues by invoking the Tcl
- interpreter on _n_e_x_t, then evaluating _t_e_s_t, and so on. If a bbbbrrrreeeeaaaakkkk command
- is invoked within _b_o_d_y or _n_e_x_t, then the ffffoooorrrr command will return
- immediately. The operation of bbbbrrrreeeeaaaakkkk and ccccoooonnnnttttiiiinnnnuuuueeee are similar to the
- corresponding statements in C. FFFFoooorrrr returns an empty string.
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- KKKKEEEEYYYYWWWWOOOORRRRDDDDSSSS
- for, iteration, looping
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- PPPPaaaaggggeeee 1111
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