| 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"> |
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| 2 | |
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| 3 | <html> |
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| 4 | |
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| 5 | <head> |
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| 6 | <title>J User's Guide - Compilation Buffers</title> |
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| 7 | <LINK REL="stylesheet" HREF="j.css" TYPE="text/css"> |
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| 8 | </head> |
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| 9 | |
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| 10 | <body> |
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| 11 | |
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| 12 | <a href="contents.html">Top</a> |
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| 13 | |
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| 14 | <hr> |
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| 15 | |
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| 16 | <h1>Compilation Buffers</h1> |
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| 17 | |
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| 18 | <hr> |
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| 19 | |
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| 20 | <p> |
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| 21 | J can run compilers for languages like Java and C, redirecting the output into |
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| 22 | a compilation buffer. For some compilers, including javac, jikes, gcc, and |
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| 23 | Microsoft C/C++, j can also parse the compiler's error messages and jump to |
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| 24 | the location in the source file where the error occurred. (Please note that on |
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| 25 | Windows, compilation buffers are only supported for Windows 2000 and Windows |
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| 26 | XP.) |
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| 27 | </p> |
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| 28 | <p> |
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| 29 | The command <a href="commands.html#compile">compile</a>, mapped by default to |
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| 30 | F9, can be used to run make, |
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| 31 | <a href="http://jakarta.apache.org/ant/index.html">Ant</a>, or a compiler. You |
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| 32 | will be prompted for the compile command. The current directory (the directory |
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| 33 | of the file in the current buffer) is used as the working directory for the |
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| 34 | execution of the compile command, so if you're using make or Ant, the Makefile |
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| 35 | or build.xml in the current directory will be used by default. |
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| 36 | </p> |
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| 37 | <p> |
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| 38 | The command <a href="commands.html#recompile">recompile</a>, mapped by default |
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| 39 | to Ctrl F9, repeats the last compile command you specified. To make this |
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| 40 | command more useful, you can use the dynamic alias "here" in your compile |
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| 41 | command to represent the full pathname of the current file (the file in the |
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| 42 | current buffer). |
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| 43 | <p> |
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| 44 | For example, you could specify the compile command: |
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| 45 | <pre> |
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| 46 | javac -classpath /home/peter/j/src here</pre> |
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| 47 | Then you could use <a href="commands.html#recompile">recompile</a> in any |
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| 48 | buffer containing a Java source file to run javac (with the specified |
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| 49 | classpath) on that particular file. |
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| 50 | <p> |
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| 51 | When you start a compilation, j displays the compilation buffer in another |
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| 52 | window, splitting the current window if necessary. Keyboard focus remains in |
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| 53 | the source window. |
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| 54 | </p> |
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| 55 | <p> |
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| 56 | If the compilation completes without error, you can use |
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| 57 | <a href="commands.html#escape">escape</a>, mapped by default to Escape, to |
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| 58 | kill the compilation buffer and unsplit the window. |
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| 59 | </p> |
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| 60 | <p> |
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| 61 | If there are errors, you can use the command |
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| 62 | <a href="commands.html#nextError">nextError</a>, mapped by default to F4, to |
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| 63 | jump to the location of each error in the source. |
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| 64 | </p> |
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| 65 | <p> |
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| 66 | In the compilation buffer itself, the command |
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| 67 | <a href="commands.html#thisError">thisError</a>, mapped by default to Enter, |
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| 68 | jumps to the location in the source file that corresponds to the error message |
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| 69 | at the current location of the caret. |
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| 70 | (<a href="commands.html#thisError">thisError</a> is also mapped by default to |
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| 71 | Ctrl Shift G, left button double click, and middle button single click.) |
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| 72 | </p> |
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| 73 | <p> |
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| 74 | The |
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| 75 | command <a href="commands.html#showMessage">showMessage</a>, mapped by default |
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| 76 | to Alt M, displays the full text of the current error message. |
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| 77 | </p> |
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| 78 | <p> |
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| 79 | Note that when using jikes, you must specify the +D flag in the compile |
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| 80 | command (or Makefile) in order for j to be able to parse the error messages |
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| 81 | correctly: |
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| 82 | <pre> |
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| 83 | jikes +D [...] here</pre> |
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| 84 | When using ant, you should set the build.compiler.emacs property: |
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| 85 | <pre> |
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| 86 | build.compiler.emacs=on</pre> |
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| 87 | </body> |
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| 88 | |
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| 89 | </html> |
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