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如何定位「Invalid UTF-8 byte or sequence at line ...」行？

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如何定位「Invalid UTF-8 byte or sequence at line ...」行？

在我的 report.log 中，我有很多這樣的消息：

(/usr/share/texlive/texmf-dist/tex/generic/xstring/xstring.sty
(/usr/share/texlive/texmf-dist/tex/generic/xstring/xstring.tex
\integerpart=\count405
Invalid UTF-8 byte or sequence at line 35 replaced by U+FFFD.
\decimalpart=\count406
Invalid UTF-8 byte or sequence at line 79 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 79 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 83 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 86 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 102 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 114 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 120 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 125 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 147 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 147 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 147 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 182 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 182 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 182 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 183 replaced by U+FFFD.
Invalid UTF-8 byte or sequence at line 184 replaced by U+FFFD.

不幸的是，提到的行號與我的文件中的內容不對應report.tex。如何正確定位這些錯誤？

這是我的.latexmkrc：

system ("mkdir -p build/figures");

@default_files = ('report.tex');
@cus_dep_list = (@cus_dep_list, "glo gls 0 makenomenclature");
sub makenomenclature {
   system("makeindex $_[0].glo -s nomencl.ist -o $_[0].gls"); }
@generated_exts = (@generated_exts, 'glo');

# Custom dependency and function for nomencl package
  add_cus_dep( 'nlo', 'nls', 0, 'makenlo2nls' );
  sub makenlo2nls {
  system( "makeindex -s nomencl.ist -o \"$_[0].nls\" \"$_[0].nlo\"" );
}

$out_dir = 'build';
$pdflatex = 'xelatex --synctex=1 -interaction=nonstopmode -shell-escape';
$latex = 'latex --synctex=1 -interaction=nonstopmode -shell-escape';

答案1

查看日誌片段

(/usr/share/texlive/texmf-dist/tex/generic/xstring/xstring.sty
(/usr/share/texlive/texmf-dist/tex/generic/xstring/xstring.tex
\integerpart=\count405
Invalid UTF-8 byte or sequence at line 35 replaced by U+FFFD.

您會看到(asxstring.sty被打開，然後 (asxstring.tex被打開，因為錯誤訊息中沒有任何行號與目前開啟的檔案堆疊中的最新檔案)相關 。xstring.tex

該文件確實有非 ascii 註釋，但在其當前版本中（至少在 texlive 2022 中），它被正確編碼為 UTF-8 並開始：

% !TeX encoding = UTF-8
% Ce fichier contient le code de l'extension "xstring"
%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%                                                                    %
\def\xstringname               {xstring}                             %
\def\xstringversion              {1.84}                              %
%                                                                    %
\def\xstringdate              {2021/07/21}                           %

第 35 行，您看到的第一個錯誤是：

\newcount\decimalpart% compteurs utilisés par xstring

評論中帶有 UTF-8 e-acute

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