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Now is a good time to try typing if you haven’t already done so. You may find yourself wanting to learn more about cursor movement and editing; that’s fine. Feel free to skim the rest of this chapter and go on toChapter 2. We recommend that you read the sections on saving files and exiting Emacs. There’s also a table of commands at the end of this chapter for future reference. If you’d like to learn more about working with files as well as some shortcuts, stay with us through the rest of the chapter.. Before M-tAfter M-tCharles,DickensDickens, Charles_. One word of advice: if you have a lot of buffers with names likeproposal,proposal<2>, andproposal<3> around, you’re probably forgetting to edit the directory when you ask for a file. If you try to find a file but get the directory wrong, Emacs assumes you want to start a new file. For example, let’s say you want to edit the file~/work/proposal, but instead ask for the file~/novel/proposal. Since~/novel/proposal doesn’t exist, Emacs creates a new, empty buffer namedproposal. If you correct your mistake (C-x C-f ~/work/proposal), Emacs renames your buffers accordingly: your empty bufferproposal is associated with~/novel/proposal; the buffer you want is namedproposal<2>.. Bookmark not relocated, consider removing it. Emacs displays the output from the command in a separate window (Mac OS X).. Inserting an HTML template. Compiling the JDEE Lisp files is not required, but as noted in “Byte-Compiling Lisp Files” inChapter 11, it’s a good idea and speeds up several operations including general startup times. The JDEE makes this step simple. After you have it installed, start Emacs and runM-x jde-compile-jde. You run this command only once, so it is definitely worthwhile.. Finally we show you how to program a simple major mode, illustrating that this “summit” of Emacs Lisp programming isn’t so hard to scale. After that, you will see how easy it is to customize Emacs’s built-in major modes without having to change (or even look at) the code that implements them. We finish the chapter by describing how to build your own library of Lisp packages.. • Floating point numbers are real numbers that you can represent with decimal points and scientific notation (with lowercase “e” for the power of 10). For example, the number 5489 can be written 5489, 5.489e3, 548.9e1, and so on.. Combining these two helper functions into a mechanism to report the change count for our fancy command is easy.. (report-change-count 1329). • Check whether there is an appropriate template file somewhere in a parent directory.. В В “Calculator mode, using H-P style postfix notation.. Start the info tutorial.. TableВ A-6.В Programming (Chapter 9)VariableDefaultDescriptioncompile-command”make -k”Default compilation command to use when compiling files via Emacs language modes. For example, to set ant as the default compilation tool, set this to “ant -emacs”.compilation-error-regexp-alist(very long regular expression)Regular expression designed to match error messages from all the compilers supported by Emacs.comment-column32The column at which Emacs should insert comments. If code reaches this column, inserts comment one space beyond code.comment-multi-linenilIft, continue comment on the next line. Ifnil, start a new comment on the next line.c-style-alist(seeChapter 9)The code indentation style to use. Many are available; seeChapter 9.debug-on-errornilIf non-nil, emacs will go into debug mode when an error occurs in evaluating Lisp code. This can be handy when you’re trying out a new function, but you probably want to read the debugger’s help first to learn your way around.c-macro-preprocessor”/lib/cpp -C”Defines which command is used to invoke C preprocessor when you typeC-c C-e.stack-trace-on-errornilIf non-nil, Emacs displays a stack trace when an error occurs in evaluating Lisp code. This is useful in similar situations asdebug-on-error and might give you enough information without having to learn the debugger interface..