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-rw-r--r--runtime/doc/develop.txt53
1 files changed, 43 insertions, 10 deletions
diff --git a/runtime/doc/develop.txt b/runtime/doc/develop.txt
index 6e6feb32d..34ff38d15 100644
--- a/runtime/doc/develop.txt
+++ b/runtime/doc/develop.txt
@@ -1,4 +1,4 @@
-*develop.txt* For Vim version 7.4. Last change: 2014 Mar 27
+*develop.txt* For Vim version 7.4. Last change: 2016 Jan 19
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -166,12 +166,27 @@ This list is not complete. Look in the source code for more examples.
MAKING CHANGES *style-changes*
The basic steps to make changes to the code:
-1. Adjust the documentation. Doing this first gives you an impression of how
+1. Get the code from github. That makes it easier to keep your changed
+ version in sync with the main code base (it may be a while before your
+ changes will be included). You do need to spend some time learning git,
+ it's not the most user friendly tool.
+2. Adjust the documentation. Doing this first gives you an impression of how
your changes affect the user.
-2. Make the source code changes.
-3. Check ../doc/todo.txt if the change affects any listed item.
-4. Make a patch with "diff -c" against the unmodified code and docs.
-5. Make a note about what changed and include it with the patch.
+3. Make the source code changes.
+4. Check ../doc/todo.txt if the change affects any listed item.
+5. Make a patch with "git diff". You can also create a pull request on
+ github, but it's the diff that matters.
+6. Make a note about what changed, preferably mentioning the problem and the
+ solution. Send an email to the vim-dev maillist with an explanation and
+ include the diff. Or create a pull request on github.
+
+
+C COMPILER *style-compiler*
+
+The minimal C compiler version supported is C89, also known as ANSI C.
+Later standards don't add much and C89 is the widest supported.
+
+One restriction that this implies: no // comments, only /* comments */.
USE OF COMMON FUNCTIONS *style-functions*
@@ -197,7 +212,7 @@ NAMES *style-names*
Function names can not be more than 31 characters long (because of VMS).
-Don't use "delete" as a variable name, C++ doesn't like it.
+Don't use "delete" or "this" as a variable name, C++ doesn't like it.
Because of the requirement that Vim runs on as many systems as possible, we
need to avoid using names that are already defined by the system. This is a
@@ -288,6 +303,24 @@ OK: do
a = 1;
while (cond);
+Wrong: if (cond) {
+ cmd;
+ cmd;
+ } else {
+ cmd;
+ cmd;
+ }
+
+OK: if (cond)
+ {
+ cmd;
+ cmd;
+ }
+ else
+ {
+ cmd;
+ cmd;
+ }
Functions start with:
@@ -299,9 +332,9 @@ OK: /*
* Return value explanation.
*/
int
- function_name(arg1, arg2)
- int arg1; /* short comment about arg1 */
- int arg2; /* short comment about arg2 */
+ function_name(
+ int arg1, /* short comment about arg1 */
+ int arg2) /* short comment about arg2 */
{
int local; /* comment about local */