Function stdin_readlines::stdin_readlines_end_with

pub fn stdin_readlines_end_with(input: &mut String, eof: &String) -> bool

CMDS C_H: show help. C_C: clear all input data. C_D N: if N exist, delete the line N, else delete the last line C_I N: insert new lines start with line N. C_P: print the current inputed lines, if more the than 10 lines, every time print 10 lines, then you can input n to print the next, use q to quit print mode.