vim 配置文件加载顺序笔记

来源：互联网发布：echart 数据加载不合并编辑：程序博客网时间：2024/06/03 21:15

最新代码：git clone https://github.com/vim/vim.git

1. VIM执行入口 src/main.c，source_startup_scripts()执行初始化。

    /*
   * Try to read initialization commands from the following places:
   * - environment variable VIMINIT
   * - user vimrc file (s:.vimrc for Amiga, ~/.vimrc otherwise)
   * - second user vimrc file ($VIM/.vimrc for Dos)
   * - environment variable EXINIT
   * - user exrc file (s:.exrc for Amiga, ~/.exrc otherwise)
   * - second user exrc file ($VIM/.exrc for Dos)
   * The first that exists is used, the rest is ignored.
   */
   if (process_env((char_u *)"VIMINIT", TRUE) != OK)
   {
        if (do_source((char_u *)USR_VIMRC_FILE, TRUE, DOSO_VIMRC) == FAIL
#ifdef USR_VIMRC_FILE2
       && do_source((char_u *)USR_VIMRC_FILE2, TRUE,
                               DOSO_VIMRC) == FAIL
#endif
#ifdef USR_VIMRC_FILE3
       && do_source((char_u *)USR_VIMRC_FILE3, TRUE,
                               DOSO_VIMRC) == FAIL
#endif
#ifdef USR_VIMRC_FILE4
       && do_source((char_u *)USR_VIMRC_FILE4, TRUE,
                               DOSO_VIMRC) == FAIL
#endif
       && process_env((char_u *)"EXINIT", FALSE) == FAIL
       && do_source((char_u *)USR_EXRC_FILE, FALSE, DOSO_NONE) == FAIL
#ifdef USR_EXRC_FILE2
       && do_source((char_u *)USR_EXRC_FILE2, FALSE, DOSO_NONE) == FAIL
#endif
       && !has_dash_c_arg)
        {
       /* When no .vimrc file was found: source defaults.vim. */
       do_source((char_u *)VIM_DEFAULTS_FILE, FALSE, DOSO_NONE);
        }
   }

2. Autoload

/*
* Return the autoload script name for a function or variable name.
* Returns NULL when out of memory.
*/
    char_u *
autoload_name(char_u *name)
{
    char_u   *p;
    char_u   *scriptname;

    /* Get the script file name: replace '#' with '/', append ".vim". */
    scriptname = alloc((unsigned)(STRLEN(name) + 14));
    if (scriptname == NULL)
   return FALSE;
    STRCPY(scriptname, "autoload/");
    STRCAT(scriptname, name);
    *vim_strrchr(scriptname, AUTOLOAD_CHAR) = NUL;
    STRCAT(scriptname, ".vim");
    while ((p = vim_strchr(scriptname, AUTOLOAD_CHAR)) != NULL)
   *p = '/';
    return scriptname;
}

3. 参考starting.txt文档，help initialization 或者 help startup。

0 0