Take any number of versions of a text, compare them, and view and study all the text differences in an HTML page. The HTML output allows you to see precisely where one version differs from the other. A small Javascript library allows you to change focus, remove versions, and explore statistics that show quantitatively how close the versions are to each other. Parameters allow you to make normalizations before making the comparison, and to weigh statistics accordingly. This application has been used not only for individual comparisons, but for more demanding needs: to analyze changes in documents passing through a multistep editorial workflow, to compare the quality of OCR results, and to study the relationship between ancient/medieval manuscripts (stemmatology). any XML file, including this one (input is ignored) one or more files perhaps diagnostics for each detectable language in the secondary input: (1) an XML file with the results of tan:diff() or tan:collate(), infused with select statistical analyses; (2) a rendering of #1 in an interactive, visually engaging HTML form https://textalign.net/output/CFR-2017-title1-vol1-compared.xml XML master output file, comparing four years of the United States Code of Federal Regulations, vol. 1 https://textalign.net/output/CFR-2017-title1-vol1-compared.html HTML comparison of four years of the United States Code of Federal Regulations, vol. 1 https://textalign.net/output/diff-grc-2021-02-08-five-versions.html Comparison of results from four OCR processes against a benchmark, classical Greek https://textalign.net/clio/darwin-3diff.html Comparison of three editions of Darwin's works, sample https://textalign.net/clio/hom-01-coll-ignore-uv.html Comparison of five versions of Griffolini's translation of John Chrysostom's Homily 1 on the Gospel of John Debugged, esp. for space-normalization problems. Edited, prepared for TAN 2021 release. Added new functionality: serialization of input XML, to compare XML structures more closely; supported output suffixes; ellision of lengthy text in HTML output; finer control of location of target CSS and JavaScript libraries; more grouping options, based on adjusted filenames and languages. Added new parameter $resolved-uris-to-lists-of-main-input-resolved-uris and batch file, for more convenient processing. Made some patches to underlying code. Revise process that reinfuses a class 1 file with a diff/collate into a standard extra TAN function. Injecting @n values into the input before making comparisons.
There may be discrepancies between the statistics and the displayed text. The original texts may have been altered before the text comparison and statistics were generated (see any attached notices), but for legibility the results styled according to the original text form. To see the difference that justifies the statistics, see the original input or any supplementary output.
 xhtml-noindent <xsl:value-of select="string-join(($this-title, $this-subtitle), ': ')"/>

…[{$this-text-length - (2 * ($elision-trigger-point-norm idiv 2))} chars]…