javascript - How to RegEx in Codemirror to match paragraph first and last words? -

javascript - How to RegEx in Codemirror to match paragraph first and last words? -

i'm using codemirror build texteditor nice feats such syntax highlighting, using language modes in simple mode, , trying write couple of regex match first , lastly words of paragraph. instance, in:

one first 1 of numbers 2 sec

the first regex (first word in paragraph) should match one , two, , sec 1 (last word in paragraph) should match numbers , second.

i've been trying different expressions couldn't find right one. closest got, still not right:

/[^\r\n]+[a-za-z]\s/

could point me in right direction? in advance.

tested using notepad++ , rubular.com

find what: ^([a-z]\w+)(\s\w+)?((\r?\n|\r)([a-z]+\s)+)+(\w+)$

replace with: \1\n\6

input

one first 1 of numbers 2 sec 3 3rd 4 4th of numbers

output

one numbers 2 sec 3 3rd 4 numbers

rubular

javascript regex codemirror codemirror-modes