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authorDan McGee <dan@archlinux.org>2007-11-19 15:46:02 -0600
committerDan McGee <dan@archlinux.org>2007-11-19 15:47:20 -0600
commit4576000c39ea350fc563163c4deb2e2e4031e386 (patch)
tree8103aff69c30c3aa675848fe2c17ce09b73bc123
parent84ebf8231985ff285f7995cd7ecaceb750a3c78b (diff)
Spruce up HACKING a bit
Signed-off-by: Dan McGee <dan@archlinux.org>
-rw-r--r--HACKING28
1 files changed, 22 insertions, 6 deletions
diff --git a/HACKING b/HACKING
index ea8936db..140b11c7 100644
--- a/HACKING
+++ b/HACKING
@@ -1,21 +1,23 @@
Contributing to pacman
======================
-Please read 'submitting-patches' and 'translation-help' in the same directory
-as this file.
+In addition to this file, please read 'submitting-patches' and
+'translation-help' in the same directory for additional info on contributing.
Coding style
------------
1. All code should be indented with tabs. (Ignore the use of only spaces in
this file) By default, source files contain the following VIM modeline:
+
/* vim: set ts=2 sw=2 noet: */
2. When opening new blocks such as 'while', 'if', or 'for', leave the opening
brace on the same line as the beginning of the codeblock. The closing brace
gets its own line (the only exception being 'else'). Do not use extra
spaces around the parentheses of the block. ALWAYS use opening/closing
- braces, even if it's just a one-line block.
+ braces, even if it's just a one-line block. This reduces future error when
+ blocks are expanded beyond one line.
for(lp = list; lp; lp = lp->next) {
newlist = _alpm_list_add(newlist, strdup(lp->data));
@@ -36,18 +38,22 @@ Coding style
own line. Also, when declaring a pointer, do not put a space between the
asterisk and the variable name.
- pmlist_t *_alpm_list_add(pmlist_t *list, void *data)
+ alpm_list_t *alpm_list_add(alpm_list_t *list, void *data)
{
- pmlist_t *ptr, *lp;
+ alpm_list_t *ptr, *lp;
ptr = list;
if(ptr == NULL) {
- ...
+ ...
}
4. Comments should be ANSI-C89 compliant. That means no "// Comment" style;
use only "/* Comment */" style.
+ /* This is a comment */
+ NOT
+ // This is a comment
+
5. Return statements should be written like a function call.
return(0);
@@ -62,6 +68,16 @@ Coding style
NOT
sizeof(*mylist);
+7. When using strcmp() (or any function that returns 0 on success) in a
+ conditional statement, use != 0 or == 0 and not the negation (!) operator.
+ It reads much cleaner for humans (using a negative to check for success is
+ confusing) and the compiler will treat it correctly anyway.
+
+ if(strcmp(a, b) == 0)
+ NOT
+ if(!strcmp(a, b))
+
+
Other Concerns
--------------