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Improve reporting of undefined control sequences in preamble
Fixes #11844
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parent
3f89dd0b48
commit
05c7c65d93
@ -1051,10 +1051,15 @@ int LaTeX::scanLogFile(TeXErrors & terr)
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// get the next line
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int count = 0;
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// We also collect intermediate lines
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// This is needed for errors in preamble
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string intermediate;
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do {
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if (!getline(ifs, tmp))
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break;
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tmp = rtrim(tmp, "\r");
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if (!prefixIs(tmp, "l."))
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intermediate += tmp;
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// 15 is somewhat arbitrarily chosen, based on practice.
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// We used 10 for 14 years and increased it to 15 when we
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// saw one case.
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@ -1076,6 +1081,15 @@ int LaTeX::scanLogFile(TeXErrors & terr)
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sscanf(tmp.c_str(), "l.%d", &line);
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// get the rest of the message:
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string errstr(tmp, tmp.find(' '));
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bool preamble_error = false;
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if (suffixIs(errstr, "\\begin{document}")) {
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// this is an error in preamble
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// the real error is in the
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// intermediate lines
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errstr = intermediate;
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tmp = intermediate;
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preamble_error = true;
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}
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errstr += '\n';
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getline(ifs, tmp);
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tmp = rtrim(tmp, "\r");
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@ -1088,6 +1102,9 @@ int LaTeX::scanLogFile(TeXErrors & terr)
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getline(ifs, tmp);
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tmp = rtrim(tmp, "\r");
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}
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if (preamble_error)
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// Add a note that the error is to be found in preamble
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errstr += "\n" + to_utf8(_("(NOTE: The erroneous command is in the preamble)"));
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LYXERR(Debug::LATEX, "line: " << line << '\n'
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<< "Desc: " << desc << '\n' << "Text: " << errstr);
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if (line == last_line)
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