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Topics in TeX and LaTeX: Selected packages, programming, and Overleaf updates

H
Hoffman Lab

This document outlines the agenda for a technical lab meeting on topics in TEX and LATEX. The talk will cover TEX engines, selected LATEX packages including microtype, siunitx, and todonotes, programming tools for TEX/LATEX like conditionals and patching, Overleaf updates, and references. Attendees will learn about typesetting documents, adding notes, formatting numbers and units, programming techniques, and compiling on Overleaf.

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Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Lab meeting—technical talk Topics in TEX and LATEX Selected packages, programming, and Overleaf updates Coby Viner Hoffman Lab Wednesday January 31, 2018
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overview TEX Engines Selected LATEX Packages Microtypography: the microtype package siunitx: SI units & number formatting todonotes: Todo notes within your document The xifthen and ifdraft packages Selected programming tools and methods Patching other packages or classes ε-TEX programming: expandafter ε-TEX programming: expandafter ε-TEX programming: csname…endcsname Overleaf Overleaf compilation Overleaf version 2
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References TEX Engines TEX engines TEX (dvi) pdfTEX XETEX LuaTEX ConTEXt S. Kottwitz. (2015), Example: a diagram of tex engines, http://www.texample.net/tikz/examples/smart-bubbles/.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Microtypography: the microtype package H. T. Thành, “Micro-typographic extensions of pdfTEX in practice”, TUGboat, vol. 25, no. 1, pp. 35–38, 2004. S. Khirevich. (2018), Tips on writing a thesis in latex,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Microtypography: the microtype package H. T. Thành, “Micro-typographic extensions of pdfTEX in practice”, TUGboat, vol. 25, no. 1, pp. 35–38, 2004. S. Khirevich. (2018), Tips on writing a thesis in latex,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Microtypography: the microtype package H. T. Thành, “Micro-typographic extensions of pdfTEX in practice”, TUGboat, vol. 25, no. 1, pp. 35–38, 2004. S. Khirevich. (2018), Tips on writing a thesis in latex,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References siunitx: SI units & number formatting Use for all quantities that have units: $SI{10}{gpermicrolitre}$ 10g/µl
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References siunitx: SI units & number formatting Use for all quantities that have units: $SI{10}{gpermicrolitre}$ 10g/µl Typeset units: $si{dalton} = si{grampermole}$ and $si{angstrom} = SI{0.1}{nanometer}$ Da = gmol−1 and Å = 0.1000nm
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References siunitx: SI units & number formatting Use for all quantities that have units: $SI{10}{gpermicrolitre}$ 10g/µl Typeset units: $si{dalton} = si{grampermole}$ and $si{angstrom} = SI{0.1}{nanometer}$ Da = gmol−1 and Å = 0.1000nm Typeset numbers, $num{2.718281828459045}$, $num{200000}$: 2.7183, 200000
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References siunitx: SI units & number formatting Use for all quantities that have units: $SI{10}{gpermicrolitre}$ 10g/µl Typeset units: $si{dalton} = si{grampermole}$ and $si{angstrom} = SI{0.1}{nanometer}$ Da = gmol−1 and Å = 0.1000nm Typeset numbers, $num{2.718281828459045}$, $num{200000}$: 2.7183, 200000 Define new units: DeclareSIUnit[number-unit-product = ;] basepair{bp}
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References siunitx: SI units & number formatting Use for all quantities that have units: $SI{10}{gpermicrolitre}$ 10g/µl Typeset units: $si{dalton} = si{grampermole}$ and $si{angstrom} = SI{0.1}{nanometer}$ Da = gmol−1 and Å = 0.1000nm Typeset numbers, $num{2.718281828459045}$, $num{200000}$: 2.7183, 200000 Define new units: DeclareSIUnit[number-unit-product = ;] basepair{bp} Options: detect-all
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References siunitx: SI units & number formatting Use for all quantities that have units: $SI{10}{gpermicrolitre}$ 10g/µl Typeset units: $si{dalton} = si{grampermole}$ and $si{angstrom} = SI{0.1}{nanometer}$ Da = gmol−1 and Å = 0.1000nm Typeset numbers, $num{2.718281828459045}$, $num{200000}$: 2.7183, 200000 Define new units: DeclareSIUnit[number-unit-product = ;] basepair{bp} Options: detect-all
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References siunitx: SI units & number formatting Use for all quantities that have units: $SI{10}{gpermicrolitre}$ 10g/µl Typeset units: $si{dalton} = si{grampermole}$ and $si{angstrom} = SI{0.1}{nanometer}$ Da = gmol−1 and Å = 0.1000nm Typeset numbers, $num{2.718281828459045}$, $num{200000}$: 2.7183, 200000 Define new units: DeclareSIUnit[number-unit-product = ;] basepair{bp} Options: detect-all, binary-units
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References siunitx: SI units & number formatting Use for all quantities that have units: $SI{10}{gpermicrolitre}$ 10g/µl Typeset units: $si{dalton} = si{grampermole}$ and $si{angstrom} = SI{0.1}{nanometer}$ Da = gmol−1 and Å = 0.1000nm Typeset numbers, $num{2.718281828459045}$, $num{200000}$: 2.7183, 200000 Define new units: DeclareSIUnit[number-unit-product = ;] basepair{bp} Options: detect-all, binary-units, round-mode=places,round-precision=4
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References todonotes: Todo notes within your document The todonotes package lets you mark items that you need to complete… This note was created with todo[inline].
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References todonotes: Todo notes within your document The todonotes package lets you mark items that you need to complete… This note was created with todo[inline]. Mark missing figures: missingfigure[fig- width=6cm, figheight=4cm] Missing figure
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References todonotes: Todo notes within your document The todonotes package lets you mark items that you need to complete… This note was created with todo[inline]. Mark missing figures: missingfigure[fig- width=6cm, figheight=4cm] Missing figure Lots of options…colour combos: blue!20!white
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References todonotes: Todo notes within your document The todonotes package lets you mark items that you need to complete… This note was created with todo[inline]. Mark missing figures: missingfigure[fig- width=6cm, figheight=4cm] Missing figure Lots of options…colour combos: blue!20!white Load with obeyFinal to remove all notes when passing final to your class.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References The xifthen and ifdraft packages Use xifthen to provide simple conditional syntax
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References The xifthen and ifdraft packages Use xifthen to provide simple conditional syntax newboolean{〈boolean〉}
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References The xifthen and ifdraft packages Use xifthen to provide simple conditional syntax newboolean{〈boolean〉} setboolean{〈boolean〉}{〈true|false}
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References The xifthen and ifdraft packages Use xifthen to provide simple conditional syntax newboolean{〈boolean〉} setboolean{〈boolean〉}{〈true|false} ifthenelse{〈test expression〉}{〈true code〉}{〈false code〉}
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References The xifthen and ifdraft packages Use xifthen to provide simple conditional syntax newboolean{〈boolean〉} setboolean{〈boolean〉}{〈true|false} ifthenelse{〈test expression〉}{〈true code〉}{〈false code〉} boolean{〈boolean〉}, 〈value1〉 = 〈value2〉, equal{〈string1〉}{〈string2〉} AND endswith{〈string2〉}{〈suffix〉}
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References The xifthen and ifdraft packages Use xifthen to provide simple conditional syntax newboolean{〈boolean〉} setboolean{〈boolean〉}{〈true|false} ifthenelse{〈test expression〉}{〈true code〉}{〈false code〉} boolean{〈boolean〉}, 〈value1〉 = 〈value2〉, equal{〈string1〉}{〈string2〉} AND endswith{〈string2〉}{〈suffix〉} With the setspace and ifdraft packages: ifoptionfinal{}{doublespacing}
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Patching other packages or classes Often want to edit a macro in an external package or class
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Patching other packages or classes Often want to edit a macro in an external package or class regexpatch provides advanced functionality to do so
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Patching other packages or classes Often want to edit a macro in an external package or class regexpatch provides advanced functionality to do so Some useful patches for the BioMed Central’s bmcart.cls:
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Patching other packages or classes Often want to edit a macro in an external package or class regexpatch provides advanced functionality to do so Some useful patches for the BioMed Central’s bmcart.cls: Contains: defdoi@base{http://dx.doi.org/}
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Patching other packages or classes Often want to edit a macro in an external package or class regexpatch provides advanced functionality to do so Some useful patches for the BioMed Central’s bmcart.cls: Contains: defdoi@base{http://dx.doi.org/} patchcmd{doi@base}{http://dx.doi.org} {https://doi.org}{}{}
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Patching other packages or classes appto{ figure@ setting s}{% i f @ f i g u r e s t a r captionsetup { . . . , s i n g l e l i n e c h e c k=f a l s e , j u s t i f i c a t i o n=RaggedRight} f i% }
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Patching other packages or classes appto{ figure@ setting s}{% i f @ f i g u r e s t a r captionsetup { . . . , s i n g l e l i n e c h e c k=f a l s e , j u s t i f i c a t i o n=RaggedRight} f i% } def bmcart@hyperref@settings{% . . . @ifundefined { hy@title }{}{ p d f s t r i n g d e f @pdftitle { hy@title }} }
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Patching other packages or classes appto{ figure@ setting s}{% i f @ f i g u r e s t a r captionsetup { . . . , s i n g l e l i n e c h e c k=f a l s e , j u s t i f i c a t i o n=RaggedRight} f i% } def bmcart@hyperref@settings{% . . . @ifundefined { hy@title }{}{ p d f s t r i n g d e f @pdftitle { hy@title }} } regexpatchcmd { bmcart@hyperref@settings } {.* @title .*}{}{}{}
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter There are typesetting instructions and instructions with other effects S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter There are typesetting instructions and instructions with other effects def is like a simpler version of newcommand*, in TEX and not LATEX S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter There are typesetting instructions and instructions with other effects def is like a simpler version of newcommand*, in TEX and not LATEX expandafter is a macro that influences the expansion of macros S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter There are typesetting instructions and instructions with other effects def is like a simpler version of newcommand*, in TEX and not LATEX expandafter is a macro that influences the expansion of macros defxx{ABC}; replacement text and expansion of xx is ABC S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter expandafter〈tokene〉〈token1〉〈token2〉…〈tokenn〉 S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter expandafter〈tokene〉〈token1〉〈token2〉…〈tokenn〉 tokene is saved without expansion S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter expandafter〈tokene〉〈token1〉〈token2〉…〈tokenn〉 tokene is saved without expansion Process 〈token1〉 S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter expandafter〈tokene〉〈token1〉〈token2〉…〈tokenn〉 tokene is saved without expansion Process 〈token1〉 〈token1〉 is a macro: it gets expanded. S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter expandafter〈tokene〉〈token1〉〈token2〉…〈tokenn〉 tokene is saved without expansion Process 〈token1〉 〈token1〉 is a macro: it gets expanded. 〈token1〉 is another expandafter: TEX continues performing expandafters S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter expandafter〈tokene〉〈token1〉〈token2〉…〈tokenn〉 tokene is saved without expansion Process 〈token1〉 〈token1〉 is a macro: it gets expanded. 〈token1〉 is another expandafter: TEX continues performing expandafters 〈token1〉 is csname: TEX looks for the matching endcsname and expands the resulting token S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter expandafter〈tokene〉〈token1〉〈token2〉…〈tokenn〉 tokene is saved without expansion Process 〈token1〉 〈token1〉 is a macro: it gets expanded. 〈token1〉 is another expandafter: TEX continues performing expandafters 〈token1〉 is csname: TEX looks for the matching endcsname and expands the resulting token 〈token1〉 is an opening curly brace: the opening brace is temporarily suspended S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter expandafter〈tokene〉〈token1〉〈token2〉…〈tokenn〉 tokene is saved without expansion Process 〈token1〉 〈token1〉 is a macro: it gets expanded. 〈token1〉 is another expandafter: TEX continues performing expandafters 〈token1〉 is csname: TEX looks for the matching endcsname and expands the resulting token 〈token1〉 is an opening curly brace: the opening brace is temporarily suspended 〈token1〉 is the: operation is performed, reading the token after it S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter expandafter〈tokene〉〈token1〉〈token2〉…〈tokenn〉 tokene is saved without expansion Process 〈token1〉 〈token1〉 is a macro: it gets expanded. 〈token1〉 is another expandafter: TEX continues performing expandafters 〈token1〉 is csname: TEX looks for the matching endcsname and expands the resulting token 〈token1〉 is an opening curly brace: the opening brace is temporarily suspended 〈token1〉 is the: operation is performed, reading the token after it 〈token1〉 is any other primitive: nothing S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61,
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter tokene is placed back in front of the generated tokens and processing continues S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter tokene is placed back in front of the generated tokens and processing continues expandafter reverses expansion, not execution S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter tokene is placed back in front of the generated tokens and processing continues expandafter reverses expansion, not execution Common use case: calling a macro with the result of another S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter tokene is placed back in front of the generated tokens and processing continues expandafter reverses expansion, not execution Common use case: calling a macro with the result of another defxx[#1]{...} defyy{[ABC]} S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter tokene is placed back in front of the generated tokens and processing continues expandafter reverses expansion, not execution Common use case: calling a macro with the result of another defxx[#1]{...} defyy{[ABC]} xxyy fails; expandafterxxyy works S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter tokene is placed back in front of the generated tokens and processing continues expandafter reverses expansion, not execution Common use case: calling a macro with the result of another defxx[#1]{...} defyy{[ABC]} xxyy fails; expandafterxxyy works defzz{yy}. expandafterxxzz fails, since expansion only occurs once S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter tokene is placed back in front of the generated tokens and processing continues expandafter reverses expansion, not execution Common use case: calling a macro with the result of another defxx[#1]{...} defyy{[ABC]} xxyy fails; expandafterxxyy works defzz{yy}. expandafterxxzz fails, since expansion only occurs once Solved using edeftemp{noexpandxxzz} S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter Multiple expandafters: ex1ex1ex1aex4bc S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter Multiple expandafters: ex1ex1ex1aex4bc ex1 is executed, saving ex2. S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter Multiple expandafters: ex1ex1ex1aex4bc ex1 is executed, saving ex2. ex3 is executed, saving a S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter Multiple expandafters: ex1ex1ex1aex4bc ex1 is executed, saving ex2. ex3 is executed, saving a Saved token list: ex2· a S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter Multiple expandafters: ex1ex1ex1aex4bc ex1 is executed, saving ex2. ex3 is executed, saving a Saved token list: ex2· a ex4 is executed, saving b and expanding c S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter Multiple expandafters: ex1ex1ex1aex4bc ex1 is executed, saving ex2. ex3 is executed, saving a Saved token list: ex2· a ex4 is executed, saving b and expanding c All saved tokens ex2· a · b are reinserted in front of the replacement of c S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter Multiple expandafters: ex1ex1ex1aex4bc ex1 is executed, saving ex2. ex3 is executed, saving a Saved token list: ex2· a ex4 is executed, saving b and expanding c All saved tokens ex2· a · b are reinserted in front of the replacement of c Now ex2 s executed, saving a and expanding b S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter Multiple expandafters: ex1ex1ex1aex4bc ex1 is executed, saving ex2. ex3 is executed, saving a Saved token list: ex2· a ex4 is executed, saving b and expanding c All saved tokens ex2· a · b are reinserted in front of the replacement of c Now ex2 s executed, saving a and expanding b a is reinserted and then expanded S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter Multiple expandafters: ex1ex1ex1aex4bc ex1 is executed, saving ex2. ex3 is executed, saving a Saved token list: ex2· a ex4 is executed, saving b and expanding c All saved tokens ex2· a · b are reinserted in front of the replacement of c Now ex2 s executed, saving a and expanding b a is reinserted and then expanded Execution continues with the replacement text of a S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter Reverse expansion of 4 tokens: 7 expandafters, token a, 3 expandafters, token b, expandafter, token c, token d S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: expandafter Reverse expansion of 4 tokens: 7 expandafters, token a, 3 expandafters, token b, expandafter, token c, token d For n tokens, the ith token must be preceded by 2n−i −1 expandafters S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: csname…endcsname csname–endcsname are TEX primatives used to define and call macros A. Hendrickson, “The joy of csname…endcsname”, TUGboat, vol. 33, no. 2, pp. 219–224, 2012.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: csname…endcsname csname–endcsname are TEX primatives used to define and call macros def can only used letters A. Hendrickson, “The joy of csname…endcsname”, TUGboat, vol. 33, no. 2, pp. 219–224, 2012.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: csname…endcsname csname–endcsname are TEX primatives used to define and call macros def can only used letters Can do: expandafterdefcsname $&3endcsname{Hi!} A. Hendrickson, “The joy of csname…endcsname”, TUGboat, vol. 33, no. 2, pp. 219–224, 2012.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: csname…endcsname csname–endcsname are TEX primatives used to define and call macros def can only used letters Can do: expandafterdefcsname $&3endcsname{Hi!} Then csname $&3endcsname produces “Hi!” A. Hendrickson, “The joy of csname…endcsname”, TUGboat, vol. 33, no. 2, pp. 219–224, 2012.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References ε-TEX programming: csname…endcsname csname–endcsname are TEX primatives used to define and call macros def can only used letters Can do: expandafterdefcsname $&3endcsname{Hi!} Then csname $&3endcsname produces “Hi!” Can expand commands within this and use for building dynamic macros A. Hendrickson, “The joy of csname…endcsname”, TUGboat, vol. 33, no. 2, pp. 219–224, 2012.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overleaf compilation Uses latexmk
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overleaf compilation Uses latexmk Configure with a .latexmkrc file
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overleaf compilation Uses latexmk Configure with a .latexmkrc file https: //www.overleaf.com/help/216-how-does-overleaf-compile-my-project
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overleaf compilation Uses latexmk Configure with a .latexmkrc file https: //www.overleaf.com/help/216-how-does-overleaf-compile-my-project To use our local timezone: $ENV{'TZ'}='Canada/Eastern';
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overleaf compilation Uses latexmk Configure with a .latexmkrc file https: //www.overleaf.com/help/216-how-does-overleaf-compile-my-project To use our local timezone: $ENV{'TZ'}='Canada/Eastern'; Sandboxed via Docker
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overleaf compilation Uses latexmk Configure with a .latexmkrc file https: //www.overleaf.com/help/216-how-does-overleaf-compile-my-project To use our local timezone: $ENV{'TZ'}='Canada/Eastern'; Sandboxed via Docker Permit shell-escape: $pdflatex = 'pdflatex --shell-escape';
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overleaf version 2
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overleaf version 2 Try it out yourself: v2.overleaf.com Import of V1 projects available. Not yet for production uses.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overleaf version 2 Try it out yourself: v2.overleaf.com Import of V1 projects available. Not yet for production uses.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overleaf version 2 Try it out yourself: v2.overleaf.com Import of V1 projects available. Not yet for production uses.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References Overleaf version 2 Try it out yourself: v2.overleaf.com Import of V1 projects available. Not yet for production uses.
Lab meeting— technical talk Coby Viner Engines Packages Microtypography Siunitx Todonotes Conditionals Patching & Programming Patching Programming Programming Programming Overleaf Compilation Upcoming References S. Kottwitz. (2015), Example: a diagram of tex engines, http://www.texample.net/tikz/examples/smart-bubbles/. H. T. Thành, “Micro-typographic extensions of pdfTEX in practice”, TUGboat, vol. 25, no. 1, pp. 35–38, 2004. S. Khirevich. (2018), Tips on writing a thesis in latex, http://www.khirevich.com/latex/microtype/. S. v. Bechtolsheim, “A tutorial on expandafter”, TUGboat, vol. 9, no. 1, pp. 57–61, 1988. A. Hendrickson, “The joy of csname…endcsname”, TUGboat, vol. 33, no. 2, pp. 219–224, 2012. J. Wright, “siunitx: a comprehensive (SI) units package”, TUGboat, vol. 32, no. 1, pp. 95–98, 2011.

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Topics in TeX and LaTeX: Selected packages, programming, and Overleaf updates