Snippet Testing 2

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Testing a runlatex JavaScript Parameterised as requested by Stefan for his forum sites. This drops the Overleaf link, just posting to TeXLive.net and supports adding a guessed default preamble to fragments that have no \documentclass or % !TEX ... ??tex comment.

br elements as newline

\documentclass{article}
\begin{document}
hello
world
\end{document}

error fragment from log

! Undefined control sequence.
l.5 \this
          one

error fragment from log with newlines marked as br

! Undefined control sequence.
l.5 \this
          one

one line no trailing newline

some text

one line trailing newline

some text

one TeX line no trailing newline

\textbf{some text}

one TeX line trailing newline

\textbf{some text}

plain tex

% !TEX jjjjjjjAAA5XAAFFFFFF5FF^^^^^HHHHHHCCCCCCCCCH*pdftex
\let~\catcode~`76~`A13~`F1~`j00~`P2jdefA71F~`7113jdefPALLF
PA''FwPA;;FPAZZFLaLPA//71F71iPAHHFLPAzzFenPASSFthP;A$$FevP
A@@FfPARR717273F737271P;ADDFRgniPAWW71FPATTFvePA**FstRsamP
AGGFRruoPAqq71.72.F717271PAYY7172F727171PA??Fi*LmPA&&71jfi
Fjfi71PAVVFjbigskipRPWGAUU71727374 75,76Fjpar71727375Djifx
:76jelse&U76jfiPLAKK7172F71l7271PAXX71FVLnOSeL71SLRyadR@oL
RrhC?yLRurtKFeLPFovPgaTLtReRomL;PABB71 72,73:Fjif.73.jelse
B73:jfiXF71PU71 72,73:PWs;AMM71F71diPAJJFRdriPAQQFRsreLPAI
I71Fo71dPA!!FRgiePBt'el@ lTLqdrYmu.Q.,Ke;vz vzLqpip.Q.,tz;
;Lql.IrsZ.eap,qn.i. i.eLlMaesLdRcna,;!;h htLqm.MRasZ.ilk,%
s$;z zLqs'.ansZ.Ymi,/sx ;LYegseZRyal,@i;@ TLRlogdLrDsW,@;G
LcYlaDLbJsW,SWXJW ree @rzchLhzsW,;WERcesInW qt.'oL.Rtrul;e
doTsW,Wk;Rri@stW aHAHHFndZPpqar.tridgeLinZpe.LtYer.W,:jbye

log files

This is pdfTeX, Version 3.141592653-2.6-1.40.22 (TeX Live 2021) (preloaded format=pdflatex 2021.3.8)  16 MAR 2021 19:02
entering extended mode
 restricted \write18 enabled.
 %&-line parsing enabled.
**small2e
(/usr/local/texlive/2021/texmf-dist/tex/latex/base/small2e.tex
LaTeX2e <2020-10-01> patch level 4
L3 programming layer <2021-02-18>
(/usr/local/texlive/2021/texmf-dist/tex/latex/base/article.cls
Document Class: article 2020/04/10 v1.4m Standard LaTeX document class
(/usr/local/texlive/2021/texmf-dist/tex/latex/base/size10.clo
File: size10.clo 2020/04/10 v1.4m Standard LaTeX file (size option)
)
\c@part=\count179
\c@section=\count180
\c@subsection=\count181
\c@subsubsection=\count182
\c@paragraph=\count183
\c@subparagraph=\count184
\c@figure=\count185
\c@table=\count186
\abovecaptionskip=\skip47
\belowcaptionskip=\skip48
\bibindent=\dimen138
)
(/usr/local/texlive/2021/texmf-dist/tex/latex/l3backend/l3backend-pdftex.def
File: l3backend-pdftex.def 2021-03-02 L3 backend support: PDF output (pdfTeX)
\l__color_backend_stack_int=\count187
\l__pdf_internal_box=\box47
)
(./small2e.aux)
\openout1 = `small2e.aux'.

LaTeX Font Info:    Checking defaults for OML/cmm/m/it on input line 12.
LaTeX Font Info:    ... okay on input line 12.
LaTeX Font Info:    Checking defaults for OMS/cmsy/m/n on input line 12.
LaTeX Font Info:    ... okay on input line 12.
LaTeX Font Info:    Checking defaults for OT1/cmr/m/n on input line 12.
LaTeX Font Info:    ... okay on input line 12.
LaTeX Font Info:    Checking defaults for T1/cmr/m/n on input line 12.
LaTeX Font Info:    ... okay on input line 12.
LaTeX Font Info:    Checking defaults for TS1/cmr/m/n on input line 12.
LaTeX Font Info:    ... okay on input line 12.
LaTeX Font Info:    Checking defaults for OMX/cmex/m/n on input line 12.
LaTeX Font Info:    ... okay on input line 12.
LaTeX Font Info:    Checking defaults for U/cmr/m/n on input line 12.
LaTeX Font Info:    ... okay on input line 12.
LaTeX Font Info:    Trying to load font information for OMS+cmr on input line 3
7.
 (/usr/local/texlive/2021/texmf-dist/tex/latex/base/omscmr.fd
File: omscmr.fd 2019/12/16 v2.5j Standard LaTeX font definitions
)
LaTeX Font Info:    Font shape `OMS/cmr/m/n' in size <10> not available
(Font)              Font shape `OMS/cmsy/m/n' tried instead on input line 37.

[1

{/usr/local/texlive/2021/texmf-var/fonts/map/pdftex/updmap/pdftex.map}]
(./small2e.aux) ) 
Here is how much of TeX's memory you used:
 410 strings out of 479015
 7367 string characters out of 5859248
 292647 words of memory out of 5000000
 17960 multiletter control sequences out of 15000+600000
 405629 words of font info for 34 fonts, out of 8000000 for 9000
 1141 hyphenation exceptions out of 8191
 44i,4n,50p,198b,100s stack positions out of 5000i,500n,10000p,200000b,80000s
{/usr/local/texlive/2021/texmf-dist/fonts/enc/dvips/cm-super/c
m-super-ts1.enc}
Output written on small2e.pdf (1 page, 62258 bytes).
PDF statistics:
 33 PDF objects out of 1000 (max. 8388607)
 23 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)

bib file

example from learnlatex

@article{Thomas2008,
  author  = {Thomas, Christine M. and Liu, Tianbiao and Hall, Michael B.
             and Darensbourg, Marcetta Y.},
  title   = {Series of Mixed Valent {Fe(II)Fe(I)} Complexes That Model the
             {H(OX)} State of [{FeFe}]Hydrogenase: Redox Properties,
             Density-Functional Theory Investigation, and Reactivity with
             Extrinsic {CO}},
  journal = {Inorg. Chem.},
  year    = {2008},
  volume  = {47},
  number  = {15},
  pages   = {7009-7024},
  doi     = {10.1021/ic800654a},
}
@book{Graham1995,
  author    = {Ronald L. Graham and Donald E. Knuth and Oren Patashnik},
  title     = {Concrete Mathematics},
  publisher = {Addison-Wesley},
  year      = {1995},
}