micro-editor / micro-editor/micro

Cannot match the standalone beginning of line regex

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Dominant language
Go
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Avg merge
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Merged PRs (30d)
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Description

Description of the problem or steps to reproduce

Micro cannot find/match/replace the standalone beginning of line regex ^. E.g.

> replace "^" "^"

always returns

Nothing matched ^

This seems to be a regression, and quite disruptive, as a pattern recall, e.g.

> replace "\(^.*$\)" "\1",

(or more precisely, \1) also fails

Specifications

Commit hash: 1856891
OS: Xubuntu 18.04.2 LTS
Terminal: xfce4-terminal``

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Reproduce the issue with the replace "^" "^" command and the backreference example, then trace the regex matching path used by Micro's replace command. Done means standalone beginning-of-line matching works and the documented \1 pattern recall succeeds without breaking ordinary replacements.

Written by the indexing model from the issue text.

Assessment

Tech stack
go
Domain
cli, search
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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