Texworks word count7/31/2023 ![]() When a row of characters is typeset, every character rests on an imaginary line called the baseline. The distinction between height and depth is a bit subtle. There are three parameters that define a box: width, height, and depth. The simplest boxes, individual characters have a set shape defined by the font they come from. Boxes and Glueĭespite the apparent complexity of TeX's job, it uses a very simple metaphor: all typographic elements are boxes. When you understand the concepts discussed here, you'll be ready to write really, really simple documents in TeX. This section will help you understand how TeX interprets the things you type into your input file. If you are already familiar with TeX, you may find some of the material in this section repetitive. It means that a large community of TeX users can transparently share documents. This feature has contributed greatly to TeX's success. This means that the TeX you use behaves exactly like the TeX I use. These features of an application are typically the most difficult to port from one system to another.īeyond the technical details that make translation from one system to another possible, Donald Knuth added an important stipulation to the free distribution of TeX: in order for any program to be called “TeX,” it must pass a rigorous test suite. Unlike a word processor, TeX never deals directly with displaying text on the screen or interacting with input from the keyboard (except in a very basic way). Compiling TeX on different systems has been possible, in large part, because TeX is a text formatter and not a word processor. Over the years, TeX has been made available on almost every computer platform, so it is probably available for the computer system that you use. Producing TeX documents involves a series of steps, including editing the document, running TeX itself, and processing TeX's output in various ways. The other program is MetaFont, a tool for creating fonts. One of them is TeX itself, the program that reads your input files and transforms them into typeset form. Two programs form the core of the TeX typesetting system. TeX is not a simple program, but a set of programs, tools, fonts, and other types of files. I will describe more of TeX's approach to text formatting and how it differs from that of word processors, desktop publishers, and other markup languages in the following sections. After you've gained a little bit of experience with TeX, you'll be able to override any one, or all, of the rules it uses to compute badness, but in most situations you won't want to. ![]() Because TeX searches for an optimal solution, changing the last word of a paragraph can affect the spacing of the first line of the paragraph. ![]() Every paragraph that TeX produces is optimal in terms of the total amount of badness present. ![]() Anything that detracts from the appearance of a line (tight or loose spacing, a hyphen, etc.) increases the badness associated with that line. Internally, TeX computes a value called badness for each line of the paragraph. TeX processes documents a paragraph at a time, rather than a line at a time like most other programs.
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