updated README, added sample .ycm_extra_conf.py

.ycm_extra_conf.py

+# Partially stolen from https://bitbucket.org/mblum/libgp/src/2537ea7329ef/.ycm_extra_conf.py
+import os
+import ycm_core
+
+# These are the compilation flags that will be used in case there's no
+# compilation database set (by default, one is not set).
+# CHANGE THIS LIST OF FLAGS. YES, THIS IS THE DROID YOU HAVE BEEN LOOKING FOR.
+flags = [
+    '-Wall',
+    '-Wextra',
+    '-Werror',
+    '-Wno-long-long',
+    '-Wno-variadic-macros',
+    '-fexceptions',
+    # THIS IS IMPORTANT! Without a "-std=<something>" flag, clang won't know which
+    # language to use when compiling headers. So it will guess. Badly. So C++
+    # headers will be compiled as C headers. You don't want that so ALWAYS specify
+    # a "-std=<something>".
+    # For a C project, you would set this to something like 'c99' instead of
+    # 'c++11'.
+    '-std=c++14',
+    # ...and the same thing goes for the magic -x option which specifies the
+    # language that the files to be compiled are written in. This is mostly
+    # relevant for c++ headers.
+    # For a C project, you would set this to 'c' instead of 'c++'.
+    '-x', 'c++',
+    # This path will only work on OS X, but extra paths that don't exist are not
+    # harmful
+    '-isystem', '/usr/local/include',
+    '-isystem', '/usr/local/include/eigen3',
+    '-I', 'include',
+    '-I.',
+]
+
+# Set this to the absolute path to the folder (NOT the file!) containing the
+# compile_commands.json file to use that instead of 'flags'. See here for
+# more details: http://clang.llvm.org/docs/JSONCompilationDatabase.html
+#
+# Most projects will NOT need to set this to anything; you can just change the
+# 'flags' list of compilation flags. Notice that YCM itself uses that approach.
+compilation_database_folder = ''
+
+if compilation_database_folder:
+  database = ycm_core.CompilationDatabase( compilation_database_folder )
+else:
+  database = None
+
+
+def DirectoryOfThisScript():
+  return os.path.dirname( os.path.abspath( __file__ ) )
+
+
+def MakeRelativePathsInFlagsAbsolute( flags, working_directory ):
+  if not working_directory:
+    return list( flags )
+  new_flags = []
+  make_next_absolute = False
+  path_flags = [ '-isystem', '-I', '-iquote', '--sysroot=' ]
+  for flag in flags:
+    new_flag = flag
+
+    if make_next_absolute:
+      make_next_absolute = False
+      if not flag.startswith( '/' ):
+        new_flag = os.path.join( working_directory, flag )
+
+    for path_flag in path_flags:
+      if flag == path_flag:
+        make_next_absolute = True
+        break
+
+      if flag.startswith( path_flag ):
+        path = flag[ len( path_flag ): ]
+        new_flag = path_flag + os.path.join( working_directory, path )
+        break
+
+    if new_flag:
+      new_flags.append( new_flag )
+  return new_flags
+
+
+def FlagsForFile( filename ):
+  if database:
+    # Bear in mind that compilation_info.compiler_flags_ does NOT return a
+    # python list, but a "list-like" StringVec object
+    compilation_info = database.GetCompilationInfoForFile( filename )
+    final_flags = MakeRelativePathsInFlagsAbsolute(
+      compilation_info.compiler_flags_,
+      compilation_info.compiler_working_dir_ )
+  else:
+    # relative_to = DirectoryOfThisScript()
+    relative_to = os.path.dirname(os.path.abspath(filename))
+    final_flags = MakeRelativePathsInFlagsAbsolute( flags, relative_to )
+
+  return {
+    'flags': final_flags,
+    'do_cache': True
+  }

README.md

@@ -22,19 +22,24 @@ If you opened a root-owned file but forgot to use `sudo`, use `:w!!` to write.
 - [Pathogen](https://github.com/tpope/vim-pathogen) - for autoloading plugins
 - [supertab](https://github.com/ervandew/supertab) - for completion awesomeness
 - [syntastic](https://github.com/scrooloose/syntastic) - for highlighting the living daylights out of syntax errors
-- [diffchar.vim](https://github.com/vim-scripts/diffchar.vim)
+- [YouCompleteMe](https://github.com/Valloric/YouCompleteMe.git)
 - [vim-airline](https://github.com/bling/vim-airline)
-- [ctrlp.vim](https://github.com/kien/ctrlp.vim)
-- [eregex.vim](https://github.com/othree/eregex.vim) - The regex will rise, moar powerful than ever before!
-- [nerdtree](https://github.com/scrooloose/nerdtree)
-- [vim-surround](https://github.com/tpope/vim-surround)
+- [ctrlp.vim](https://github.com/ctrlpvim/ctrlp.vim.git)
+- [diffchar.vim](https://github.com/vim-scripts/diffchar.vim)
+- [molokai](https://github.com/tomasr/molokai.git)
+- [nerdtree](https://github.com/scrooloose/nerdtree.git)
+- [tabular](https://github.com/godlygeek/tabular.git)
+- [tagbar](https://github.com/majutsushi/tagbar.git)
+- [vim-fugitive](https://github.com/tpope/vim-fugitive.git)
+- [vim-go](https://github.com/fatih/vim-go.git)
+- [vim-markdown](https://github.com/gabrielelana/vim-markdown)
+- [vim-surround](https://github.com/tpope/vim-surround.git)
+- [vimtex](https://github.com/lervag/vimtex)
 - [vim2hs](https://github.com/dag/vim2hs) - Haskell in all its visual beauty:
 
         symbol :: Eq s => s -> Parser s s
         symbol a x = satisfy (a == ) x
-Becomes:
+ Becomes:
 
         symbol :: Eq s ⇒ s → Parser s s
         symbol a x = satisfy (a ≡ ) x
-
-- [LaTeX-Box](https://github.com/LaTeX-Box-Team/LaTeX-Box)

vimrc

@@ -70,7 +70,6 @@ function! s:Help2Url (...)
 	python import urllib
 	let @+ = pyeval ('urllib.quote_plus ("' . @+ . '")')
 	let @+ = printf ('http://vimhelp.appspot.com/%s.html#%s', l:tagfile, @+)
-	endif
 endfunction
 
 command! -nargs=? -complete=help H call s:Help2Url (<f-args>)