Update Vim and UltiSnips config

vim/.vim/own-snippets/asciidoc.snippets

@@ -0,0 +1,112 @@
+# Text formatting
+snippet "h(\d)" "Quick header snippet" biw
+`!p
+header_level = int(match.group(1))
+legit_header_level = True if header_level >= 1 and header_level <= 6 else False
+
+snip.rv = "#" * header_level if legit_header_level else ""
+`
+$0
+endsnippet
+
+snippet dt "Definition term" bi
+${1:<term>}::
+${2:<definition>}
+$0
+endsnippet
+
+snippet ul "Unordered list item" bi
+* ${1:<list item>}
+$0
+endsnippet
+
+snippet ol "Ordered list item" bi
+. ${1:<list item>}
+$0
+endsnippet
+
+snippet -ol "Reversed ordered list (use it only once in a list)" bi
+[%reversed]
+. ${1:<list item>}
+endsnippet
+
+snippet bquote "Blockquote" bi
+----
+$1
+----
+$0
+endsnippet
+
+snippet src "Source code listings" bi
+[source,${1:<language>}]
+----
+${2:<source code>}
+----
+$0
+endsnippet
+
+snippet "-table (\d+)-" "Make a quick table" bir
+[cols="`!p snip.rv = match.group(1)`*"]
+|===
+
+$1
+
+|===
+$0
+endsnippet
+
+# Images
+snippet figure "Image block with caption" bi
+.${2:<caption>}
+image::${1:<image path>}[${3:width=100%,height=100%}]
+$0
+endsnippet
+
+snippet -figure "Inline image" i
+image:${1:<image path>}[${2}] $0
+endsnippet
+
+# Video blocks
+snippet video "Video block" bi
+video::${1:<image path>}[$2]
+$0
+endsnippet
+
+snippet youtube "YouTube video block" bi
+video::${1:<YouTube video ID>}[youtube]
+$0
+endsnippet
+
+snippet vimeo "Vimeo video block" bi
+video::${1:<Vimeo video ID>}[vimeo]
+$0
+endsnippet
+
+# Other features
+snippet incl "Include document" bi
+include::${1:<file path>}[${2:<options>}]
+$0
+endsnippet
+
+snippet oblock "Open block" bi
+--
+$1
+--
+$0
+endsnippet
+
+snippet sidebar "Sidebar as an open block" bi
+[sidebar]
+.${1:<title>}
+--
+$2
+--
+$0
+endsnippet
+
+snippet abstract "Abstract block" bi
+[abstract]
+== ${1:Summary}
+$0
+endsnippet
+

vim/.vim/own-snippets/tex.snippets

@@ -199,12 +199,11 @@ snippet plot "Quickly plot a graph" bi
     xlabel=$x$,
     ylabel=$y$,
     xmin= ${2:-10}, xmax= ${3:10},
-    ymin= ${4:-10}, ymax = ${5:10},
     axis lines = middle,
     grid=major,
     axis equal=false,
-    major tick style=thick,
-    scale only axis,
+    tick style={very thick},
+    major tick style=thick,`!p snip.rv = smart_space(t[4], "\n\t")`$4
     ]
     \addplot[domain=$2:$3, samples=${6: `!p snip.rv = add_variable_numbers(t[2], t[3], absolute=True)`}]{$7};
     \end{axis}

vim/.vimrc

@@ -51,7 +51,7 @@ set number relativenumber
 set cursorline
 
 " set tab to enter spaces, instead
-set expandtab tabstop=4 shiftwidth=4
+set expandtab tabstop=4 shiftwidth=4 smartindent
 
 let template_list = [
 \    ["_minted-", ""],
@@ -83,6 +83,17 @@ augroup END
 " open nerd-tree at the start of each file opening
 autocmd vimenter * NERDTree
 
+" set list and other listing characters (:h listchars)
+set list listchars=tab:→\ ,trail:·
+
+" show leading spaces
+" SOURCE: https://www.reddit.com/r/vim/comments/5fxsfy/show_leading_spaces/
+hi Conceal guibg=NONE ctermbg=NONE ctermfg=DarkGrey
+autocmd BufWinEnter * setl conceallevel=2 concealcursor=nv
+autocmd BufWinEnter * syn match LeadingSpace /\(^ *\)\@<= / containedin=ALL conceal cchar=·
+autocmd BufReadPre * setl conceallevel=2 concealcursor=nv
+autocmd BufReadPre * syn match LeadingSpace /\(^ *\)\@<= / containedin=ALL conceal cchar=·
+
 " spell checker (for your local language, anyway)
 setlocal spell
 set spelllang=en_gb