New answers tagged regular-expressions
1
I will give the same answer as @Drew, but phrased a little differently.
Your expression 《.+IJ》will match the first 《, then will match the minimum number of characters (because of the ?) until the IJ》 sequence.
You cannot use the "non-greediness" of the ? to un-match the first matching 《 in order to find a later one.
An expression you can use to do what ...
5
The problem is not about using non-greedy matching. It is about which chars you're matching. Specifically, you want to match 《 followed by any number of non-《 chars, followed by IJ》.
This is a regexp that finds that: 《[^《]+IJ》.
This is a typical operation, for searching text that has paired delimiters. For example, you do the same thing when searching ...
2
You'll want to use the function buffer-substring-no-properties. In the documentation for M-x describe-function buffer-substring it says this:
This function copies the text properties of that part of the buffer
into the result string; if you don’t want the text properties,
use buffer-substring-no-properties instead.
3
You can simulate the \ze construct using repeated matching. See also (info "(elisp) Search-based Fontification").
(defun my-matcher (limit)
(when (re-search-forward
"\\([0-9]\\{1,3\\}\\)\\(?:[0-9]\\{6\\}\\)*\\(?:[0-9]\\{3\\}\\)\\_>" limit t)
(goto-char (match-beginning 1))
(re-search-forward "[0-9]+" (match-end 1))))
(font-lock-add-...
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