use std::{cmp::Ordering, path::PathBuf};

use once_cell::sync::Lazy;
use regex::{Match, Regex};

#[derive(Debug, PartialEq, Eq, Clone, Copy, PartialOrd, Ord, Hash)]
pub enum BuildErrorLevel {
    Error,
    Warning,
}

#[derive(Debug, PartialEq, Eq, Clone, Hash)]
pub struct BuildError {
    pub relative_path: PathBuf,
    pub level: BuildErrorLevel,
    pub message: String,
    pub line: Option<u32>,
}

const MAX_LINE_LENGTH: usize = 79;

pub static PACKAGE_MESSAGE_REGEX: Lazy<Regex> =
    Lazy::new(|| Regex::new("^\\([a-zA-Z_\\-]+\\)\\s*(?P<msg>.*)$").unwrap());

pub static FILE_REGEX: Lazy<Regex> =
    Lazy::new(|| Regex::new("\\((?P<file>[^\r\n()]+\\.(tex|sty|cls))").unwrap());

pub static TEX_ERROR_REGEX: Lazy<Regex> = Lazy::new(|| {
    Regex::new("(?m)^! ((?P<msg1>(.|\r|\n)*?)\r?\nl\\.(?P<line>\\d+)|(?P<msg2>[^\r\n]*))").unwrap()
});

pub static WARNING_REGEX: Lazy<Regex> =
    Lazy::new(|| Regex::new("(LaTeX|Package [a-zA-Z_\\-]+) Warning: (?P<msg>[^\r\n]*)").unwrap());

pub static BAD_BOX_REGEX: Lazy<Regex> = Lazy::new(|| {
    Regex::new("(?P<msg>(Ov|Und)erfull \\\\[hv]box[^\r\n]*lines? (?P<line>\\d+)[^\r\n]*)").unwrap()
});

#[derive(Debug, PartialEq, Eq, Clone, Hash)]
pub struct Parse {
    pub errors: Vec<BuildError>,
}

pub fn parse(log: &str) -> Parse {
    let log = prepare_log(log);
    let mut ranges: Vec<FileRange> = FILE_REGEX
        .find_iter(&log)
        .map(|result| FileRange::create(&log, result))
        .collect();
    ranges.sort();

    let tex_errors = extract_matches(&log, &ranges, &TEX_ERROR_REGEX, BuildErrorLevel::Error);
    let warnings = extract_matches(&log, &ranges, &WARNING_REGEX, BuildErrorLevel::Warning);
    let bad_boxes = extract_matches(&log, &ranges, &BAD_BOX_REGEX, BuildErrorLevel::Warning);

    Parse {
        errors: vec![tex_errors, warnings, bad_boxes].concat(),
    }
}

fn extract_matches(
    log: &str,
    ranges: &[FileRange],
    regex: &Regex,
    level: BuildErrorLevel,
) -> Vec<BuildError> {
    let mut errors = Vec::new();
    for result in regex.find_iter(log) {
        let captures = regex.captures(&log[result.start()..result.end()]).unwrap();
        let message = captures
            .name("msg")
            .or_else(|| captures.name("msg1"))
            .or_else(|| captures.name("msg2"))
            .unwrap()
            .as_str()
            .lines()
            .next()
            .unwrap_or_default()
            .to_owned();

        if let Some(range) = ranges.iter().find(|range| range.contains(result.start())) {
            let line = captures
                .name("line")
                .map(|result| result.as_str().parse::<u32>().unwrap() - 1);

            errors.push(BuildError {
                relative_path: range.path.clone(),
                level,
                message,
                line,
            });
        }
    }
    errors
}

fn prepare_log(log: &str) -> String {
    let mut old_lines = log.lines();
    let mut new_lines: Vec<String> = Vec::new();
    while let Some(line) = old_lines.next() {
        if PACKAGE_MESSAGE_REGEX.is_match(line) {
            let captures = PACKAGE_MESSAGE_REGEX.captures(line).unwrap();
            if let Some(last_line) = new_lines.last_mut() {
                last_line.push(' ');
                last_line.push_str(captures.name("msg").unwrap().as_str());
            }
        } else if line.ends_with("...") {
            let mut new_line = line[line.len() - 3..].to_owned();
            if let Some(old_line) = old_lines.next() {
                new_line.push_str(old_line);
            }
            new_lines.push(new_line);
        } else if line.chars().count() == MAX_LINE_LENGTH {
            let mut new_line = String::new();
            new_line.push_str(line);
            if let Some(old_line) = old_lines.next() {
                new_line.push_str(old_line);
            }
            new_lines.push(new_line);
        } else {
            new_lines.push(line.to_owned());
        }
    }
    new_lines.join("\n")
}

#[derive(Debug, PartialEq, Eq, Clone)]
struct FileRange {
    pub path: PathBuf,
    pub start: usize,
    pub end: usize,
}

impl FileRange {
    fn create(log: &str, result: Match) -> Self {
        let mut balance = 1;
        let mut end = result.start() + 1;
        let chars = (&log[result.start() + 1..]).chars();
        for c in chars {
            if balance <= 0 {
                break;
            }

            if c == '(' {
                balance += 1;
            } else if c == ')' {
                balance -= 1;
            }
            end += c.len_utf8();
        }

        let captures = FILE_REGEX.captures(result.as_str()).unwrap();
        let path = PathBuf::from(captures.name("file").unwrap().as_str());
        Self {
            path,
            start: result.start(),
            end,
        }
    }

    fn len(&self) -> usize {
        self.end - self.start + 1
    }

    fn contains(&self, index: usize) -> bool {
        index >= self.start && index <= self.end
    }
}

impl Ord for FileRange {
    fn cmp(&self, other: &Self) -> Ordering {
        self.len().cmp(&other.len())
    }
}

impl PartialOrd for FileRange {
    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
        Some(self.cmp(other))
    }
}

#[cfg(test)]
mod tests {
    use super::*;
    use insta::assert_debug_snapshot;

    #[test]
    fn parse_001() {
        let log = r#"
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/W32TeX) (preloaded format=pdflatex 2018.3.30)  26 DEC 2018 16:50
entering extended mode
restricted \write18 enabled.
%&-line parsing enabled.
**./parent.tex
(./parent.tex
LaTeX2e <2017-04-15>
Babel <3.10> and hyphenation patterns for 84 language(s) loaded.
(/TexLive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/TexLive/texmf-dist/tex/latex/base/size10.clo
File: size10.clo 2014/09/29 v1.4h Standard LaTeX file (size option)
)
\c@part=\count79
\c@section=\count80
\c@subsection=\count81
\c@subsubsection=\count82
\c@paragraph=\count83
\c@subparagraph=\count84
\c@figure=\count85
\c@table=\count86
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
)
(/TexLive/texmf-dist/tex/latex/multirow/bigstrut.sty
Package: bigstrut 2016/11/25 v2.2 Provide larger struts in tabulars
\bigstrutjot=\dimen103
)
(/TexLive/texmf-dist/tex/latex/multirow/multirow.sty
Package: multirow 2016/11/25 v2.2 Span multiple rows of a table
\multirow@colwidth=\skip43
\multirow@cntb=\count87
\multirow@dima=\skip44
) (./parent.aux)
\openout1 = `parent.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.

Overfull \hbox (200.00162pt too wide) in paragraph at lines 8--9
[]\OT1/cmr/m/n/10 aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
[]

LaTeX Font Info:    External font `cmex10' loaded for size
(Font)              <7> on input line 11.
LaTeX Font Info:    External font `cmex10' loaded for size
(Font)              <5> on input line 11.

Overfull \vbox (3.19998pt too high) detected at line 23
[]

[1

{/TexLive/texmf-var/fonts/map/pdftex/updmap/pdftex.map}] (./parent.aux) )
Here is how much of TeX's memory you used:
265 strings out of 492995
3121 string characters out of 6138727
55074 words of memory out of 5000000
3896 multiletter control sequences out of 15000+600000
3640 words of font info for 14 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
23i,20n,20p,124b,282s stack positions out of 5000i,500n,10000p,200000b,80000s
</
TexLive/texmf-dist/fonts/type1/public/amsfonts/cm/cmr10.pfb></TexLive/texmf-d
ist/fonts/type1/public/amsfonts/cm/cmr7.pfb>
Output written on parent.pdf (1 page, 17505 bytes).
PDF statistics:
16 PDF objects out of 1000 (max. 8388607)
10 compressed objects within 1 object stream
0 named destinations out of 1000 (max. 500000)
1 words of extra memory for PDF output out of 10000 (max. 10000000)"#;

        assert_eq!(
            parse(log).errors,
            vec![
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Warning,
                    message: "Overfull \\hbox (200.00162pt too wide) in paragraph at lines 8--9"
                        .into(),
                    line: Some(7),
                },
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Warning,
                    message: "Overfull \\vbox (3.19998pt too high) detected at line 23".into(),
                    line: Some(22),
                }
            ]
        );
    }

    #[test]
    fn parse_002() {
        let log = r#"
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/W32TeX) (preloaded format=pdflatex 2018.3.30)  26 DEC 2018 16:52
entering extended mode
restricted \write18 enabled.
%&-line parsing enabled.
**./parent.tex
(./parent.tex
LaTeX2e <2017-04-15>
Babel <3.10> and hyphenation patterns for 84 language(s) loaded.
(/TexLive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/TexLive/texmf-dist/tex/latex/base/size10.clo
File: size10.clo 2014/09/29 v1.4h Standard LaTeX file (size option)
)
\c@part=\count79
\c@section=\count80
\c@subsection=\count81
\c@subsubsection=\count82
\c@paragraph=\count83
\c@subparagraph=\count84
\c@figure=\count85
\c@table=\count86
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
) (./parent.aux (./child.aux))
\openout1 = `parent.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 4.
LaTeX Font Info:    ... okay on input line 4.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 4.
LaTeX Font Info:    ... okay on input line 4.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 4.
LaTeX Font Info:    ... okay on input line 4.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 4.
LaTeX Font Info:    ... okay on input line 4.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 4.
LaTeX Font Info:    ... okay on input line 4.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 4.
LaTeX Font Info:    ... okay on input line 4.
(./child.tex
! Undefined control sequence.
l.1 \foo

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

) (./parent.aux) )
Here is how much of TeX's memory you used:
205 strings out of 492995
2149 string characters out of 6138727
54074 words of memory out of 5000000
3841 multiletter control sequences out of 15000+600000
3640 words of font info for 14 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
23i,1n,17p,116b,36s stack positions out of 5000i,500n,10000p,200000b,80000s

No pages of output.
PDF statistics:
0 PDF objects out of 1000 (max. 8388607)
0 named destinations out of 1000 (max. 500000)
1 words of extra memory for PDF output out of 10000 (max. 10000000)"#;

        assert_eq!(
            parse(log).errors,
            vec![BuildError {
                relative_path: "./child.tex".into(),
                level: BuildErrorLevel::Error,
                message: "Undefined control sequence.".into(),
                line: Some(0)
            }]
        );
    }

    #[test]
    fn parse_003() {
        let log = r#"
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/W32TeX) (preloaded format=pdflatex 2018.3.30)  26 DEC 2018 16:51
entering extended mode
restricted \write18 enabled.
%&-line parsing enabled.
**./parent.tex
(./parent.tex
LaTeX2e <2017-04-15>
Babel <3.10> and hyphenation patterns for 84 language(s) loaded.
(/TexLive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/TexLive/texmf-dist/tex/latex/base/size10.clo
File: size10.clo 2014/09/29 v1.4h Standard LaTeX file (size option)
)
\c@part=\count79
\c@section=\count80
\c@subsection=\count81
\c@subsubsection=\count82
\c@paragraph=\count83
\c@subparagraph=\count84
\c@figure=\count85
\c@table=\count86
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
) (./parent.aux)
\openout1 = `parent.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 4.
LaTeX Font Info:    ... okay on input line 4.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 4.
LaTeX Font Info:    ... okay on input line 4.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 4.
LaTeX Font Info:    ... okay on input line 4.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 4.
LaTeX Font Info:    ... okay on input line 4.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 4.
LaTeX Font Info:    ... okay on input line 4.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 4.
LaTeX Font Info:    ... okay on input line 4.

LaTeX Warning: Citation `foo' on page 1 undefined on input line 6.

[1

{/TexLive/texmf-var/fonts/map/pdftex/updmap/pdftex.map}] (./parent.aux)

LaTeX Warning: There were undefined references.

)
Here is how much of TeX's memory you used:
204 strings out of 492995
2142 string characters out of 6138727
54074 words of memory out of 5000000
3842 multiletter control sequences out of 15000+600000
3948 words of font info for 15 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
23i,4n,21p,116b,107s stack positions out of 5000i,500n,10000p,200000b,80000s
</TexLive/texmf-dist/fonts/type1/public/amsfonts/cm/cmbx10.pfb></TexLive/
texmf-dist/fonts/type1/public/amsfonts/cm/cmr10.pfb>
Output written on parent.pdf (1 page, 17339 bytes).
PDF statistics:
16 PDF objects out of 1000 (max. 8388607)
10 compressed objects within 1 object stream
0 named destinations out of 1000 (max. 500000)
1 words of extra memory for PDF output out of 10000 (max. 10000000)"#;

        assert_eq!(
            parse(log).errors,
            vec![
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Warning,
                    message: "Citation `foo' on page 1 undefined on input line 6.".into(),
                    line: None
                },
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Warning,
                    message: "There were undefined references.".into(),
                    line: None,
                }
            ]
        );
    }

    #[test]
    fn parse_004() {
        let log = r#"
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/W32TeX) (preloaded format=pdflatex 2018.3.30)  26 DEC 2018 16:40
entering extended mode
restricted \write18 enabled.
%&-line parsing enabled.
**./parent.tex
(./parent.tex
LaTeX2e <2017-04-15>
Babel <3.10> and hyphenation patterns for 84 language(s) loaded.
(/TexLive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/TexLive/texmf-dist/tex/latex/base/size10.clo
File: size10.clo 2014/09/29 v1.4h Standard LaTeX file (size option)
)
\c@part=\count79
\c@section=\count80
\c@subsection=\count81
\c@subsubsection=\count82
\c@paragraph=\count83
\c@subparagraph=\count84
\c@figure=\count85
\c@table=\count86
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
)
(/TexLive/texmf-dist/tex/generic/babel/babel.sty
Package: babel 2017/05/19 3.10 The Babel package

! Package babel Error: Unknown option `foo'. Either you misspelled it
(babel)                or the language definition file foo.ldf was not found.

See the babel package documentation for explanation.
Type  H <return>  for immediate help.
...

l.393 \ProcessOptions*

Valid options are: shorthands=, KeepShorthandsActive,
activeacute, activegrave, noconfigs, safe=, main=, math=
headfoot=, strings=, config=, hyphenmap=, or a language name.

! Package babel Error: You haven't specified a language option.

See the babel package documentation for explanation.
Type  H <return>  for immediate help.
...

l.426 ...ry to proceed from here, type x to quit.}

You need to specify a language, either as a global option
or as an optional argument to the \usepackage command;
You shouldn't try to proceed from here, type x to quit.

) (./parent.aux)
\openout1 = `parent.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 5.
LaTeX Font Info:    ... okay on input line 5.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 5.
LaTeX Font Info:    ... okay on input line 5.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 5.
LaTeX Font Info:    ... okay on input line 5.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 5.
LaTeX Font Info:    ... okay on input line 5.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 5.
LaTeX Font Info:    ... okay on input line 5.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 5.
LaTeX Font Info:    ... okay on input line 5.
(./parent.aux) )
Here is how much of TeX's memory you used:
304 strings out of 492995
3421 string characters out of 6138727
56035 words of memory out of 5000000
3938 multiletter control sequences out of 15000+600000
3640 words of font info for 14 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
23i,1n,17p,116b,36s stack positions out of 5000i,500n,10000p,200000b,80000s

No pages of output.
PDF statistics:
0 PDF objects out of 1000 (max. 8388607)
0 named destinations out of 1000 (max. 500000)
1 words of extra memory for PDF output out of 10000 (max. 10000000)"#;

        assert_eq!(
            parse(log).errors,
            vec![
                BuildError {
                    relative_path: "/TexLive/texmf-dist/tex/generic/babel/babel.sty".into(),
                    level: BuildErrorLevel::Error,
                    message: "Package babel Error: Unknown option `foo'. Either you misspelled it or the language definition file foo.ldf was not found.".into(),
                    line: Some(392)
                },
                BuildError {
                    relative_path: "/TexLive/texmf-dist/tex/generic/babel/babel.sty".into(),
                    level: BuildErrorLevel::Error,
                    message: "Package babel Error: You haven't specified a language option.".into(),
                    line: Some(425)
                }
            ]
        );
    }

    #[test]
    fn parse_005() {
        let log = r#"
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/W32TeX) (preloaded format=pdflatex 2018.3.30)  26 DEC 2018 16:45
entering extended mode
restricted \write18 enabled.
%&-line parsing enabled.
**./parent.tex
(./parent.tex
LaTeX2e <2017-04-15>
Babel <3.10> and hyphenation patterns for 84 language(s) loaded.
(/TexLive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/TexLive/texmf-dist/tex/latex/base/size10.clo
File: size10.clo 2014/09/29 v1.4h Standard LaTeX file (size option)
)
\c@part=\count79
\c@section=\count80
\c@subsection=\count81
\c@subsubsection=\count82
\c@paragraph=\count83
\c@subparagraph=\count84
\c@figure=\count85
\c@table=\count86
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
)
(/TexLive/texmf-dist/tex/generic/babel/babel.sty
Package: babel 2017/05/19 3.10 The Babel package

(/TexLive/texmf-dist/tex/generic/babel-spanish/spanish.ldf
Language: spanish.ldf 2016/03/03 v5.0p Spanish support from the babel system

(/TexLive/texmf-dist/tex/generic/babel/babel.def
File: babel.def 2017/05/19 3.10 Babel common definitions
\babel@savecnt=\count87
\U@D=\dimen103
)
\es@quottoks=\toks14
\es@quotdepth=\count88
Package babel Info: Making " an active character on input line 561.
Package babel Info: Making . an active character on input line 662.
Package babel Info: Making < an active character on input line 707.
Package babel Info: Making > an active character on input line 707.
))
(/TexLive/texmf-dist/tex/latex/biblatex/biblatex.sty
Package: biblatex 2016/12/05 v3.7 programmable bibliographies (PK/JW/AB)

(/TexLive/texmf-dist/tex/generic/oberdiek/pdftexcmds.sty
Package: pdftexcmds 2017/03/19 v0.25 Utility functions of pdfTeX for LuaTeX (HO
)

(/TexLive/texmf-dist/tex/generic/oberdiek/infwarerr.sty
Package: infwarerr 2016/05/16 v1.4 Providing info/warning/error messages (HO)
)
(/TexLive/texmf-dist/tex/generic/oberdiek/ifluatex.sty
Package: ifluatex 2016/05/16 v1.4 Provides the ifluatex switch (HO)
Package ifluatex Info: LuaTeX not detected.
)
(/TexLive/texmf-dist/tex/generic/oberdiek/ltxcmds.sty
Package: ltxcmds 2016/05/16 v1.23 LaTeX kernel commands for general use (HO)
)
(/TexLive/texmf-dist/tex/generic/oberdiek/ifpdf.sty
Package: ifpdf 2017/03/15 v3.2 Provides the ifpdf switch
)
Package pdftexcmds Info: LuaTeX not detected.
Package pdftexcmds Info: \pdf@primitive is available.
Package pdftexcmds Info: \pdf@ifprimitive is available.
Package pdftexcmds Info: \pdfdraftmode found.
)
(/TexLive/texmf-dist/tex/latex/etoolbox/etoolbox.sty
Package: etoolbox 2017/01/02 v2.4 e-TeX tools for LaTeX (JAW)
\etb@tempcnta=\count89
)
(/TexLive/texmf-dist/tex/latex/graphics/keyval.sty
Package: keyval 2014/10/28 v1.15 key=value parser (DPC)
\KV@toks@=\toks15
)
(/TexLive/texmf-dist/tex/latex/oberdiek/kvoptions.sty
Package: kvoptions 2016/05/16 v3.12 Key value format for package options (HO)

(/TexLive/texmf-dist/tex/generic/oberdiek/kvsetkeys.sty
Package: kvsetkeys 2016/05/16 v1.17 Key value parser (HO)

(/TexLive/texmf-dist/tex/generic/oberdiek/etexcmds.sty
Package: etexcmds 2016/05/16 v1.6 Avoid name clashes with e-TeX commands (HO)
Package etexcmds Info: Could not find \expanded.
(etexcmds)             That can mean that you are not using pdfTeX 1.50 or
(etexcmds)             that some package has redefined \expanded.
(etexcmds)             In the latter case, load this package earlier.
)))
(/TexLive/texmf-dist/tex/latex/logreq/logreq.sty
Package: logreq 2010/08/04 v1.0 xml request logger
\lrq@indent=\count90

(/TexLive/texmf-dist/tex/latex/logreq/logreq.def
File: logreq.def 2010/08/04 v1.0 logreq spec v1.0
))
(/TexLive/texmf-dist/tex/latex/base/ifthen.sty
Package: ifthen 2014/09/29 v1.1c Standard LaTeX ifthen package (DPC)
)
(/TexLive/texmf-dist/tex/latex/url/url.sty
\Urlmuskip=\muskip10
Package: url 2013/09/16  ver 3.4  Verb mode for urls, etc.
)
(/TexLive/texmf-dist/tex/generic/xstring/xstring.sty
(/TexLive/texmf-dist/tex/generic/xstring/xstring.tex
\@xs@message=\write3
\integerpart=\count91
\decimalpart=\count92
)
Package: xstring 2013/10/13  v1.7c  String manipulations (C Tellechea)
)
\c@tabx@nest=\count93
\c@listtotal=\count94
\c@listcount=\count95
\c@liststart=\count96
\c@liststop=\count97
\c@citecount=\count98
\c@citetotal=\count99
\c@multicitecount=\count100
\c@multicitetotal=\count101
\c@instcount=\count102
\c@maxnames=\count103
\c@minnames=\count104
\c@maxitems=\count105
\c@minitems=\count106
\c@citecounter=\count107
\c@savedcitecounter=\count108
\c@uniquelist=\count109
\c@uniquename=\count110
\c@refsection=\count111
\c@refsegment=\count112
\c@maxextratitle=\count113
\c@maxextratitleyear=\count114
\c@maxextrayear=\count115
\c@maxextraalpha=\count116
\c@abbrvpenalty=\count117
\c@highnamepenalty=\count118
\c@lownamepenalty=\count119
\c@maxparens=\count120
\c@parenlevel=\count121
\blx@tempcnta=\count122
\blx@tempcntb=\count123
\blx@tempcntc=\count124
\blx@maxsection=\count125
\blx@maxsegment@0=\count126
\blx@notetype=\count127
\blx@parenlevel@text=\count128
\blx@parenlevel@foot=\count129
\blx@sectionciteorder@0=\count130
\labelnumberwidth=\skip43
\labelalphawidth=\skip44
\biblabelsep=\skip45
\bibitemsep=\skip46
\bibnamesep=\skip47
\bibinitsep=\skip48
\bibparsep=\skip49
\bibhang=\skip50
\blx@bcfin=\read1
\blx@bcfout=\write4
\c@mincomprange=\count131
\c@maxcomprange=\count132
\c@mincompwidth=\count133
Package biblatex Info: Trying to load biblatex default data model...
Package biblatex Info: ... file 'blx-dm.def' found.

(/TexLive/texmf-dist/tex/latex/biblatex/blx-dm.def)
Package biblatex Info: Trying to load biblatex style data model...
Package biblatex Info: ... file 'ieee.dbx' not found.
Package biblatex Info: Trying to load biblatex custom data model...
Package biblatex Info: ... file 'biblatex-dm.cfg' not found.
\c@afterword=\count134
\c@savedafterword=\count135
\c@annotator=\count136
\c@savedannotator=\count137
\c@author=\count138
\c@savedauthor=\count139
\c@bookauthor=\count140
\c@savedbookauthor=\count141
\c@commentator=\count142
\c@savedcommentator=\count143
\c@editor=\count144
\c@savededitor=\count145
\c@editora=\count146
\c@savededitora=\count147
\c@editorb=\count148
\c@savededitorb=\count149
\c@editorc=\count150
\c@savededitorc=\count151
\c@foreword=\count152
\c@savedforeword=\count153
\c@holder=\count154
\c@savedholder=\count155
\c@introduction=\count156
\c@savedintroduction=\count157
\c@namea=\count158
\c@savednamea=\count159
\c@nameb=\count160
\c@savednameb=\count161
\c@namec=\count162
\c@savednamec=\count163
\c@translator=\count164
\c@savedtranslator=\count165
\c@shortauthor=\count166
\c@savedshortauthor=\count167
\c@shorteditor=\count168
\c@savedshorteditor=\count169
\c@labelname=\count170
\c@savedlabelname=\count171
\c@institution=\count172
\c@savedinstitution=\count173
\c@lista=\count174
\c@savedlista=\count175
\c@listb=\count176
\c@savedlistb=\count177
\c@listc=\count178
\c@savedlistc=\count179
\c@listd=\count180
\c@savedlistd=\count181
\c@liste=\count182
\c@savedliste=\count183
\c@listf=\count184
\c@savedlistf=\count185
\c@location=\count186
\c@savedlocation=\count187
\c@organization=\count188
\c@savedorganization=\count189
\c@origlocation=\count190
\c@savedoriglocation=\count191
\c@origpublisher=\count192
\c@savedorigpublisher=\count193
\c@publisher=\count194
\c@savedpublisher=\count195
\c@language=\count196
\c@savedlanguage=\count197
\c@pageref=\count198
\c@savedpageref=\count199
\shorthandwidth=\skip51
\shortjournalwidth=\skip52
\shortserieswidth=\skip53
\shorttitlewidth=\skip54
\shortauthorwidth=\skip55
\shorteditorwidth=\skip56
Package biblatex Info: Trying to load compatibility code...
Package biblatex Info: ... file 'blx-compat.def' found.

(/TexLive/texmf-dist/tex/latex/biblatex/blx-compat.def
File: blx-compat.def 2016/12/05 v3.7 biblatex compatibility (PK/JW/AB)
)
Package biblatex Info: Trying to load generic definitions...
Package biblatex Info: ... file 'biblatex.def' found.

(/TexLive/texmf-dist/tex/latex/biblatex/biblatex.def
File: biblatex.def 2016/12/05 v3.7 biblatex compatibility (PK/JW/AB)
\c@textcitecount=\count266
\c@textcitetotal=\count267
\c@textcitemaxnames=\count268
\c@biburlnumpenalty=\count269
\c@biburlucpenalty=\count270
\c@biburllcpenalty=\count271
\c@smartand=\count272
)
Package biblatex Info: Trying to load bibliography style 'ieee'...
Package biblatex Info: ... file 'ieee.bbx' found.

(/TexLive/texmf-dist/tex/latex/biblatex-ieee/ieee.bbx
File: ieee.bbx 2017/03/27 v1.2d biblatex bibliography style
Package biblatex Info: Trying to load bibliography style 'numeric-comp'...
Package biblatex Info: ... file 'numeric-comp.bbx' found.

(/TexLive/texmf-dist/tex/latex/biblatex/bbx/numeric-comp.bbx
File: numeric-comp.bbx 2016/12/05 v3.7 biblatex bibliography style (PK/JW/AB)
Package biblatex Info: Trying to load bibliography style 'numeric'...
Package biblatex Info: ... file 'numeric.bbx' found.

(/TexLive/texmf-dist/tex/latex/biblatex/bbx/numeric.bbx
File: numeric.bbx 2016/12/05 v3.7 biblatex bibliography style (PK/JW/AB)
Package biblatex Info: Trying to load bibliography style 'standard'...
Package biblatex Info: ... file 'standard.bbx' found.

(/TexLive/texmf-dist/tex/latex/biblatex/bbx/standard.bbx
File: standard.bbx 2016/12/05 v3.7 biblatex bibliography style (PK/JW/AB)
\c@bbx:relatedcount=\count273
\c@bbx:relatedtotal=\count274
))))
Package biblatex Info: Trying to load citation style 'ieee'...
Package biblatex Info: ... file 'ieee.cbx' found.

(/TexLive/texmf-dist/tex/latex/biblatex-ieee/ieee.cbx
File: ieee.cbx 2017/03/27 v1.2d biblatex citation style
Package biblatex Info: Trying to load citation style 'numeric-comp'...
Package biblatex Info: ... file 'numeric-comp.cbx' found.

(/TexLive/texmf-dist/tex/latex/biblatex/cbx/numeric-comp.cbx
File: numeric-comp.cbx 2016/12/05 v3.7 biblatex citation style (PK/JW/AB)
\c@cbx@tempcnta=\count275
\c@cbx@tempcntb=\count276
Package biblatex Info: Redefining '\cite'.
Package biblatex Info: Redefining '\parencite'.
Package biblatex Info: Redefining '\footcite'.
Package biblatex Info: Redefining '\footcitetext'.
Package biblatex Info: Redefining '\smartcite'.
Package biblatex Info: Redefining '\supercite'.
Package biblatex Info: Redefining '\textcite'.
Package biblatex Info: Redefining '\textcites'.
Package biblatex Info: Redefining '\cites'.
Package biblatex Info: Redefining '\parencites'.
Package biblatex Info: Redefining '\smartcites'.
)
Package biblatex Info: Redefining '\cite'.
Package biblatex Info: Redefining '\cites'.
)
Package biblatex Info: Trying to load configuration file...
Package biblatex Info: ... file 'biblatex.cfg' found.

(/TexLive/texmf-dist/tex/latex/biblatex/biblatex.cfg
File: biblatex.cfg
))
Package biblatex Info: Trying to load language 'spanish'...
Package biblatex Info: ... file 'spanish.lbx' found.

(/TexLive/texmf-dist/tex/latex/biblatex/lbx/spanish.lbx
File: spanish.lbx 2016/12/05 v3.7 biblatex localization (PK/JW/AB)
)

Package biblatex Warning: 'babel/polyglossia' detected but 'csquotes' missing.
(biblatex)                Loading 'csquotes' recommended.

\@quotelevel=\count277
\@quotereset=\count278
(./parent.aux)
\openout1 = `parent.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 6.
LaTeX Font Info:    ... okay on input line 6.
LaTeX Info: Redefining \sptext on input line 6.
LaTeX Info: Redefining \. on input line 6.
LaTeX Info: Redefining \% on input line 6.
Package biblatex Info: No input encoding detected.
(biblatex)             Assuming 'ascii'.
Package biblatex Info: Automatic encoding selection.
(biblatex)             Assuming data encoding 'ascii'.
\openout4 = `parent.bcf'.

Package biblatex Info: Trying to load bibliographic data...
Package biblatex Info: ... file 'parent.bbl' not found.

No file parent.bbl.
Package biblatex Info: Reference section=0 on input line 6.
Package biblatex Info: Reference segment=0 on input line 6.
(./parent.aux)

LaTeX Warning: There were undefined references.

Package biblatex Warning: Please (re)run Biber on the file:
(biblatex)                parent
(biblatex)                and rerun LaTeX afterwards.

Package logreq Info: Writing requests to 'parent.run.xml'.
\openout1 = `parent.run.xml'.

)
Here is how much of TeX's memory you used:
7717 strings out of 492995
133301 string characters out of 6138727
557258 words of memory out of 5000000
11248 multiletter control sequences out of 15000+600000
3640 words of font info for 14 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
35i,1n,30p,856b,700s stack positions out of 5000i,500n,10000p,200000b,80000s

No pages of output.
PDF statistics:
0 PDF objects out of 1000 (max. 8388607)
0 named destinations out of 1000 (max. 500000)
1 words of extra memory for PDF output out of 10000 (max. 10000000)"#;

        assert_eq!(
            parse(log).errors,
            vec![
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Warning,
                    message: "'babel/polyglossia' detected but 'csquotes' missing. Loading 'csquotes' recommended.".into(),
                    line: None
                },
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Warning,
                    message: "There were undefined references.".into(),
                    line: None,
                },
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Warning,
                    message: "Please (re)run Biber on the file: parent and rerun LaTeX afterwards.".into(),
                    line: None
                }
            ]
        );
    }

    #[test]
    fn parse_006() {
        let log = r#"
This is pdfTeX, Version 3.14159265-2.6-1.40.18 (TeX Live 2017/W32TeX) (preloaded format=pdflatex 2018.3.30)  26 DEC 2018 16:33
entering extended mode
restricted \write18 enabled.
%&-line parsing enabled.
**./parent.tex
(./parent.tex
LaTeX2e <2017-04-15>
Babel <3.10> and hyphenation patterns for 84 language(s) loaded.
(/TexLive/texmf-dist/tex/latex/base/article.cls
Document Class: article 2014/09/29 v1.4h Standard LaTeX document class
(/TexLive/texmf-dist/tex/latex/base/size10.clo
File: size10.clo 2014/09/29 v1.4h Standard LaTeX file (size option)
)
\c@part=\count79
\c@section=\count80
\c@subsection=\count81
\c@subsubsection=\count82
\c@paragraph=\count83
\c@subparagraph=\count84
\c@figure=\count85
\c@table=\count86
\abovecaptionskip=\skip41
\belowcaptionskip=\skip42
\bibindent=\dimen102
) (./parent.aux
(./child.tex.aux))
\openout1 = `parent.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
\openout2 = `child.aux'.

(./child.tex)
! Undefined control sequence.
l.7 \foo

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Missing $ inserted.
<inserted text>
                $
l.8 \bar

I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.

LaTeX Font Info:    External font `cmex10' loaded for size
(Font)              <7> on input line 8.
LaTeX Font Info:    External font `cmex10' loaded for size
(Font)              <5> on input line 8.
! Undefined control sequence.
l.9 \baz

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

! Missing { inserted.
<to be read again>
                \par
l.10

A left brace was mandatory here, so I've put one in.
You might want to delete and/or insert some corrections
so that I will find a matching right brace soon.
(If you're confused by all this, try typing `I}' now.)

! Missing $ inserted.
<inserted text>
                $
l.10

I've inserted a begin-math/end-math symbol since I think
you left one out. Proceed, with fingers crossed.

! Missing } inserted.
<inserted text>
                }
l.10

I've inserted something that you may have forgotten.
(See the <inserted text> above.)
With luck, this will get me unwedged. But if you
really didn't forget anything, try typing `2' now; then
my insertion and my current dilemma will both disappear.

[1

{/TexLive/texmf-var/fonts/map/pdftex/updmap/pdftex.map}] (./parent.aux
(./child.aux)) )
Here is how much of TeX's memory you used:
212 strings out of 492995
2238 string characters out of 6138727
54074 words of memory out of 5000000
3843 multiletter control sequences out of 15000+600000
3640 words of font info for 14 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
23i,4n,17p,116b,107s stack positions out of 5000i,500n,10000p,200000b,80000s
</TexLive/texmf-dist/fonts/type1/public/amsfonts/cm/cmr10.pfb
>
Output written on parent.pdf (1 page, 8329 bytes).
PDF statistics:
12 PDF objects out of 1000 (max. 8388607)
7 compressed objects within 1 object stream
0 named destinations out of 1000 (max. 500000)
1 words of extra memory for PDF output out of 10000 (max. 10000000)"#;

        assert_eq!(
            parse(log).errors,
            vec![
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Error,
                    message: "Undefined control sequence.".into(),
                    line: Some(6)
                },
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Error,
                    message: "Missing $ inserted.".into(),
                    line: Some(7)
                },
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Error,
                    message: "Undefined control sequence.".into(),
                    line: Some(8)
                },
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Error,
                    message: "Missing { inserted.".into(),
                    line: Some(9)
                },
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Error,
                    message: "Missing $ inserted.".into(),
                    line: Some(9)
                },
                BuildError {
                    relative_path: "./parent.tex".into(),
                    level: BuildErrorLevel::Error,
                    message: "Missing } inserted.".into(),
                    line: Some(9)
                },
            ]
        );
    }

    #[test]
    fn parse_007() {
        let log = r#"
This is pdfTeX, Version 3.141592653-2.6-1.40.22 (TeX Live 2021/W32TeX) (preloaded format=pdflatex 2021.6.19)  5 NOV 2021 19:10
entering extended mode
restricted \write18 enabled.
%&-line parsing enabled.
**/some/folder/a.tex
(/some/folder/a.tex
LaTeX2e <2021-06-01> patch level 1
L3 programming layer <2021-06-18>
(/texlive/2021/texmf-dist/tex/latex/koma-script/scrartcl.cls
Document Class: scrartcl 2021/03/17 v3.33 KOMA-Script document class (article)
(/texlive/2021/texmf-dist/tex/latex/koma-script/scrkbase.sty
Package: scrkbase 2021/03/17 v3.33 KOMA-Script package (KOMA-Script-dependent b
asics and keyval usage)

(/texlive/2021/texmf-dist/tex/latex/koma-script/scrbase.sty
Package: scrbase 2021/03/17 v3.33 KOMA-Script package (KOMA-Script-independent 
basics and keyval usage)

(/texlive/2021/texmf-dist/tex/latex/koma-script/scrlfile.sty
Package: scrlfile 2021/03/17 v3.33 KOMA-Script package (file load hooks)

(/texlive/2021/texmf-dist/tex/latex/koma-script/scrlfile-hook.sty
Package: scrlfile-hook 2021/03/17 v3.33 KOMA-Script package (using LaTeX hooks)


(/texlive/2021/texmf-dist/tex/latex/koma-script/scrlogo.sty
Package: scrlogo 2021/03/17 v3.33 KOMA-Script package (logo)
)))
(/texlive/2021/texmf-dist/tex/latex/graphics/keyval.sty
Package: keyval 2014/10/28 v1.15 key=value parser (DPC)
\KV@toks@=\toks16
)
Applying: [2021/05/01] Usage of raw option list on input line 252.
Already applied: [0000/00/00] compatibility for LaTeX before 2021/05/01 on inpu
t line 337.
))
==> First Aid for scrkbase.sty no longer applied!
(/texlive/2021/texmf-dist/tex/latex/koma-script/tocbasic.sty
Package: tocbasic 2021/03/17 v3.33 KOMA-Script package (handling toc-files)
\scr@dte@tocline@numberwidth=\skip47
\scr@dte@tocline@numbox=\box50
)
Package tocbasic Info: babel extension for `toc' omitted
(tocbasic)             because of missing \bbl@set@language on input line 135.
Class scrartcl Info: File `scrsize11pt.clo' used instead of
(scrartcl)           file `scrsize11.clo' to setup font sizes on input line 223
9.

(/texlive/2021/texmf-dist/tex/latex/koma-script/scrsize11pt.clo
File: scrsize11pt.clo 2021/03/17 v3.33 KOMA-Script font size class option (11pt
)
)
(/texlive/2021/texmf-dist/tex/latex/koma-script/typearea.sty
Package: typearea 2021/03/17 v3.33 KOMA-Script package (type area)
\ta@bcor=\skip48
\ta@div=\count182
\ta@hblk=\skip49
\ta@vblk=\skip50
\ta@temp=\skip51
\footheight=\skip52
Package typearea Info: These are the values describing the layout:
(typearea)             DIV  = 10
(typearea)             BCOR = 0.0pt
(typearea)             \paperwidth      = 597.50793pt
(typearea)              \textwidth      = 418.25555pt
(typearea)              DIV departure   = -6%
(typearea)              \evensidemargin = 17.3562pt
(typearea)              \oddsidemargin  = 17.3562pt
(typearea)             \paperheight     = 845.04694pt
(typearea)              \textheight     = 595.80026pt
(typearea)              \topmargin      = -25.16531pt
(typearea)              \headheight     = 17.0pt
(typearea)              \headsep        = 20.40001pt
(typearea)              \topskip        = 11.0pt
(typearea)              \footskip       = 47.6pt
(typearea)              \baselineskip   = 13.6pt
(typearea)              on input line 1741.
)
\c@part=\count183
\c@section=\count184
\c@subsection=\count185
\c@subsubsection=\count186
\c@paragraph=\count187
\c@subparagraph=\count188
\scr@dte@section@maxnumwidth=\skip53
Class scrartcl Info: using compatibility default `runin=bysign'
(scrartcl)           for `\section on input line 4846.
Class scrartcl Info: using compatibility default `afterindent=bysign'
(scrartcl)           for `\section on input line 4846.
\scr@dte@part@maxnumwidth=\skip54
Class scrartcl Info: using compatibility default `afterindent=false'
(scrartcl)           for `\part on input line 4854.
\scr@dte@subsection@maxnumwidth=\skip55
Class scrartcl Info: using compatibility default `runin=bysign'
(scrartcl)           for `\subsection on input line 4864.
Class scrartcl Info: using compatibility default `afterindent=bysign'
(scrartcl)           for `\subsection on input line 4864.
\scr@dte@subsubsection@maxnumwidth=\skip56
Class scrartcl Info: using compatibility default `runin=bysign'
(scrartcl)           for `\subsubsection on input line 4874.
Class scrartcl Info: using compatibility default `afterindent=bysign'
(scrartcl)           for `\subsubsection on input line 4874.
\scr@dte@paragraph@maxnumwidth=\skip57
Class scrartcl Info: using compatibility default `runin=bysign'
(scrartcl)           for `\paragraph on input line 4885.
Class scrartcl Info: using compatibility default `afterindent=bysign'
(scrartcl)           for `\paragraph on input line 4885.
\scr@dte@subparagraph@maxnumwidth=\skip58
Class scrartcl Info: using compatibility default `runin=bysign'
(scrartcl)           for `\subparagraph on input line 4895.
Class scrartcl Info: using compatibility default `afterindent=bysign'
(scrartcl)           for `\subparagraph on input line 4895.
\abovecaptionskip=\skip59
\belowcaptionskip=\skip60
\c@pti@nb@sid@b@x=\box51
Package tocbasic Info: babel extension for `lof' omitted
(tocbasic)             because of missing \bbl@set@language on input line 6127.

\scr@dte@figure@maxnumwidth=\skip61
\c@figure=\count189
Package tocbasic Info: babel extension for `lot' omitted
(tocbasic)             because of missing \bbl@set@language on input line 6139.

\scr@dte@table@maxnumwidth=\skip62
\c@table=\count190
Class scrartcl Info: Redefining `\numberline' on input line 6303.
\bibindent=\dimen138
)
(/texlive/2021/texmf-dist/tex/latex/l3backend/l3backend-pdftex.def
File: l3backend-pdftex.def 2021-05-07 L3 backend support: PDF output (pdfTeX)
\l__color_backend_stack_int=\count191
\l__pdf_internal_box=\box52
) (./a.aux)
\openout1 = `a.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for TS1/cmr/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 3.
LaTeX Font Info:    ... okay on input line 3.
Package scrbase Info: activating english \contentsname on input line 3.
Package scrbase Info: activating english \listfigurename on input line 3.
Package scrbase Info: activating english \listtablename on input line 3.
! Undefined control sequence.
l.4     \lsdkfjlskdfj
                    
The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

(./a.aux) ) 
Here is how much of TeX's memory you used:
3199 strings out of 478510
74549 string characters out of 5853586
510929 words of memory out of 5000000
21227 multiletter control sequences out of 15000+600000
403730 words of font info for 28 fonts, out of 8000000 for 9000
1141 hyphenation exceptions out of 8191
108i,1n,108p,10625b,270s stack positions out of 5000i,500n,10000p,200000b,80000s

No pages of output.
PDF statistics:
0 PDF objects out of 1000 (max. 8388607)
0 named destinations out of 1000 (max. 500000)
1 words of extra memory for PDF output out of 10000 (max. 10000000)"#;

        assert_debug_snapshot!(parse(log).errors);
    }
}
