m4

This should be possible, but as I am a novice with m4, I'm not sure how to go about it, or how to write an algorithm to do so (in m4). edit: Just solved it, anyway for future reference, I have a series of characters, they need to be translated to their equivalent ASCII code points, e.g. ascii(-{COLON}-, -{:}-) => #define TKN_COLON 58 For the benefit of others interested in a pure m4 implementation I've managed to create the following conversion macro. It has to meddle with the quoting characters to support normal m4 quote chars. It could be simplified a bit if that isn't important. changequote

I am writing a pre-processor for Free-Pascal (Course Work) using m4 . I was reading the thread at stackoverflow here and from there reached a blog which essentially shows the basic usage of m4 for pre-processing for C . The blogger uses a testing C file test.c.m4 like this: #include define(`DEF', `3') int main(int argc, char *argv[]) { printf("%d\n", DEF); return 0; } and generates processed C file like this using m4 , which is fine. $ m4 test.c.m4 > test.c $ cat test.c #include <stdio.h> int main(int argc, char *argv[]) { printf("%dn", 3); return 0; } My doubts are: 1. The programmer will

I'm trying to use M4 macros to generate css files. I'm willing to enter my values in px and do simple math using eval() to get results in em. Unfortunatly I didn't find how to get floats. define(`FONTSIZE', `13')dnl define(`LINEHEIGHT', `17')dnl .content {padding : eval(LINEHEIGHT / FONTSIZE)em} >>> m4 style.css.m4 >>> .content {padding : 1em} Any ideas? Thanks! For your particular purpose the expression may become something like eval(LINEHEIGHT/FONTSIZE).substr(eval(((LINEHEIGHT%FONTSIZE)*1000)/FONTSIZE + 1000),1) (of course, use the power of 10 that meets your precision requirements) This is