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I want to highlight in multiple colors using highlight.el.
I'm trying to use:
(highlight-regexp regexp1)
followed by
hlt-next-face
But it seems to be consistently using the same face. How do I get highlight-regexp to use a different face. I'd prefer to not keep track faces myself, just get it to use a new one, which hlt-next-face claims to do.
highlight-regexp is not part of library Highlight (highlight.el). It's part of vanilla Emacs. Functions and variables defined by library highlight.el use prefix hlt-. Only library highlight.el lets you use hlt-next-face.
The main highlight.el command for highlighting regexp matches in the region (or the buffer) is hlt-highlight-regexp-region. Try that, instead of highlight-regexp.
Be aware too that vanilla command highlight-regexp works with hi-lock-mode, which means it works (only) with font-lock-mode turned on.
Features of library highlight.el can be used to highlight text whether or not font locking is on. To understand how to do this, see Interaction with Font Lock for using highlight.el with and without font-lock-mode being on.
point-min and point-max for this (hlt-unhighlight-regexp-region (point-min) (point-max) 't) and (hlt-highlight-regexp-region (point-min) (point-max) "regexp") `
hlt-region-or-buffer-limits for how args START and END are defaulted.
START and END if I want to specify the regular expression though?
nil values for any such optional variables you want to have that default value.