Colophon

The overall layout of the PDF files on this site differs from both the original British Burns, Oates, & Washbourne and the American Benzinger editions, although it owes more to Benzinger due to the page dimensions. The typesetting of sentences, paragraphs, and notes should generally agree with both editions. In very few places where the Burns, Oates, & Washbourne and Benzinger editions differ, Burns, Oates, & Washbourne has been followed. The following conscious changes have been made:

• Article lists at the beginning of questions have been set with each article forming a new paragraph in the list instead of setting all the articles in a single paragraph as in the printed editions.
• At the beginning of questions in the printed edition, paragraphs which end with a colon also include an em-dash (":—"). If a colon occurs in the middle of a paragraph, it lacks the em-dash (":"). In this edition, the same practice has been followed, which, because paragraphs are broken before article lists, results in the addition of an em dash to paragraphs which lack them in the printed editions.
• Articles do not begin with the phrase, "We proceed thus to the nth article:—", although arguably they should as this phrase forms part of both the printed English editions and the Latin text.
• "Objection n", "On the contrary," "I answer that," and "Reply to Objection n" have been set in bold type rather than italics, which aids in finding the sections quickly.
• Lowercase letters have been used in citations to other questions and articles in the Summa; e.g., qq. instead of QQ.
• All quotations are contained within quotation marks rather than italicized. Differentiating between quotations and individual quoted words would simply consume too much time.
• Latin abbreviations such as "i.e." and "e.g." have not been italicized.

The PDF files were generated from an XML source file in the ThML format available at CCEL (registration required). The source file was produced through the kindness of Sandra K. Perry, Perrysburg, Ohio. Many changes have been made to the original file in order to produce these PDF files. Previously, the files had been created from an XML file in the OSIS 1.1 format.

Other differences may be considered either errors, corrections not yet made, or conscious decisions not yet discovered.

Two perl scripts utilizing the Libxml2 XML parser and Libxslt XSLT processor with EXSLT extensions turned the source XML file into all the various kinds of output. The first script generated the webpages from the XML file. All HTML output was run through Tidy to validate and format it nicely. The second script translated the XML file into multiple LaTeX files which were processed by pdflatex.

The documents were typeset using the LaTeX document preparation system, based on the TeX typesetting system developed by Donald Knuth. The teTeX TeX distribution, obtained from the Fink project, was used for the actual typesetting. pdflatex was used to translate the LaTeX source files directly into PDF files. TeXShop was used to test various TeX constructs. The documents were typeset in Times and Wingreek Regular.

BBEdit and TextWrangler were used to edit the perl scripts and the XML files when needed. Other than BBEdit, all of the software used to produce these documents is available for free. The entire process was performed on an Apple iBook running Mac OS X and an old PC rescued from a dumpster running Gentoo Linux.