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"args-out-of-range" error when using data from external process on Windo

From: Alexis
Subject: "args-out-of-range" error when using data from external process on Windows
Date: Thu, 18 Apr 2024 15:39:10 +1000
User-agent: mu4e 1.12.4; emacs 29.3

[Not currently subscribed to the list, so please cc me on replies.] Hi all, A user of my `Ebuku` package has reported an "args-out-of-range" error that i'm out of my depth trying to diagnose. Here's the GitHub issue: https://github.com/flexibeast/ebuku/issues/32 i can't reproduce the issue on my own system: * Gentoo + Emacs 29.3. * LANG=en_AU.UTF-8 * The only set LC_* variables are: LC_MESSAGES=C LC_TIME=en_AU.UTF-8 * current-language-environment = "English" locale-coding-system = * utf-8-unix Their system: Windows 11, using Emacs 29.2 * obtained via Scoop package manager; not using WSL * LANG=zh_CN.UTF-8, LC_ALL=zh_CN.UTF-8 * current-language-environment: UTF-8 locale-coding-system = cp936 * default-process-coding-system = '(utf-8-dos . utf-8-unix) * `Ebuku` uses `call-process` to call the Python-based `buku` * bookmark database manager and present the resulting output in * Emacs. buku stores data in an SQLite database. https://github.com/jarun/buku/ The link: https://google.github.io/comprehensive-rust/ in the buku database results in: ``` Debugger entered--Lisp error: (args-out-of-range "1884. Welcome to Comprehensive Rust 🦀 - Comprehens..." 15862 15893) match-string(1 "1884. Welcome to Comprehensive Rust 🦀 - Comprehensive Rust 🦀") ebuku--search-helper("--print" "[all]" "-1000" "") ebuku-show-all() ebuku() funcall-interactively(ebuku)1 command-execute(ebuku record) execute-extended-command(nil "ebuku" "ebuku") funcall-interactively(execute-extended-command nil "ebuku" "ebuku") command-execute(execute-extended-command) ``` Once the Unicode CRAB emoji is removed, there's no issue. The link: https://coredumped.dev/2021/05/26/taking-org-roam-everywhere-with-logseq/ in the buku database results in: ``` Debugger entered--Lisp error: (args-out-of-range "2027. Taking org-roam everywhere with logseq • Core Dumped" 32318 32355) match-string(1 "2027. Taking org-roam everywhere with logseq • Cor...") (setq tags (match-string 1 line)) (progn (string-match "^\\s-*[#] \\(.*\\)$" line) (setq tags (match-string 1 line))) [snip rest of traceback] ``` The user has confirmed that the buku database is UTF-8. Does anyone have any suggestions about what might be happening? i presume my code is making some incorrect assumptions, or not doing some encoding stuff that it should be. i really want to get encoding and language support right, so even outside of this specific issue, general comments about things i need to fix in this regard would be most welcome. :-)


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