Introduction: From WEB to C, a bit of history/background For some time I’d wanted to build TeX (the original Knuth version) from the WEB source code, but the relatively complex process to generate C from WEB meant it was…
Regular expressions are part of many programmer’s toolkit but they can be quite fiddly to get right. At the moment, I’m trying to “sanitize” the C code generated for TeX (via Web2C) by post-processing the TeX.c file to make the…
TeX uses the concept of “badness” as a measure of how much the glue in a box has to stretch or shrink. In the following C function, t is the difference between the total of the natural sizes (N) of…
Just a brief post, partly to record this for my own use. If you read the source code of TeX you will see references to a data structure called a memoryword. It is very carefully defined in the source file…
I kept hitting a stack overflow problem when using the PCRE regular expression C library under windows. To fix it, put the following line in PCRE’s config.h to tell it not to use recursion but to use the heap instead.…
Introduction I needed to create an updated font map for some work with dvipng/dvips and had to update psfonts.map to contain the mapping between tfm/pfb files and the corresponding PostScript name for each font. To do that I wrote a…