Convert coding style from Open Document to Markdown
Markdown is easily readable in text editors. Unlike ODT, markdown can be patched. GitHub shows markdown with pretty formatting. Remove bad examples. Improve explanations for good examples. Use Unicode finger sign to work around the issue of code block after a list. Make coding_style.md distributable.
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Coding_Style.odt
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Coding_Style.odt
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ACLOCAL_AMFLAGS = -I m4
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AM_DISTCHECK_CONFIGURE_FLAGS = --without-systemdsystemunitdir
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EXTRA_DIST = bootstrap COPYING design.txt faq-compile.txt faq-general.txt file-loc.txt install.txt prog_std.txt readme.txt
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EXTRA_DIST = bootstrap COPYING coding_style.md design.txt faq-compile.txt \
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faq-general.txt file-loc.txt install.txt prog_std.txt readme.txt
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if XRDP_NEUTRINORDP
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NEUTRINORDPDIR = neutrinordp
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195
coding_style.md
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195
coding_style.md
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XRdp Coding Style
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=================
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The coding style used by XRdp is described below.
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The XRdp project uses astyle (artistic style) to format the code. Astyle
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requires a configuration file that describes how you want your code
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formatted. This file is present in the XRdp root directory and is named
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`astyle_config.as`.
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Here is how we run the astyle command:
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astyle --options=/path/to/file/astyle_config.as "*.c"
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This coding style is a work in progress and is still evolving.
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Indentation
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-----------
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* 4 spaces per indent
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* No tabs for any indents
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☞
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if (fd < 0)
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{
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return -1;
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}
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Line wrapping
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-------------
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* Keep lines shorter than 80 chars
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* Align wrapped argument to the first argument
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☞
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log_message("connection aborted: error %d",
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ret);
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Variable names
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--------------
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* Use lowercase with underscores as needed
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* Don't use camelCase
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☞
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int fd;
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int bytes_in_stream;
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Variable declaration
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--------------------
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* Each variable is declared on a separate line
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☞
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int i;
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int j;
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Whitespace
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----------
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* Use blank lines to group statements
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* Use at most one empty line between statements
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* For pointers and references, use a single space before * or & but not after
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* Use one space after a cast
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* No space before square brackets
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☞
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char *cptr;
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int *iptr;
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cptr = (char *) malloc(1024);
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write(fd, &buf[12], 16);
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Function declarations
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---------------------
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* Use newline before function name
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☞
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static int
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value_ok(int val)
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{
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return (val >= 0);
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}
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Braces
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------
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* Opening brace is always on a separate line
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* Align braces with the line preceding the opening brace
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☞
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struct stream
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{
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int flags;
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char *data;
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};
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void
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process_data(struct stream *s)
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{
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if (stream == NULL)
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{
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return;
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}
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}
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`if` statements
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---------------
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* Always use braces
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* Put both braces on separate lines
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☞
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if (val <= 0xff)
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{
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out_uint8(s, val);
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}
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else if (val <= 0xffff)
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{
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out_uint16_le(s, val);
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}
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else
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{
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out_uint32_le(s, val);
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}
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`for` statements
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----------------
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* Always use braces
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* Put both braces on separate lines
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☞
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for (i = 0; i < 10; i++)
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{
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printf("i = %d\n", i);
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}
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`while` and `do while` statements
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---------------------------------
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* Always use braces
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* `while` after the closing brace is on the same line
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☞
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while (cptr)
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{
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cptr—;
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}
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do
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{
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cptr--;
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} while (cptr);
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`switch` statements
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-------------------
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* Indent `case` once
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* Indent statements under `case` one more time
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* Put both braces on separate lines
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☞
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switch (cmd)
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{
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case READ:
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read(fd, buf, 1024);
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break;
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default:
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printf("bad cmd\n");
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}
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