mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-11-11 07:11:39 +00:00
8c95516224
- updaterevision for automated revision string generation - re2c as a prerequisite to use sc_man in the future - zipdir to automatically generate an engine resource file.
21 lines
692 B
Text
21 lines
692 B
Text
re2c lesson 002_strip_comments, (c) M. Boerger 2006
|
|
|
|
In this lesson you will learn how to use multiple scanner blocks and how to
|
|
read the input from a file instead of a zero terminated string. In the end you
|
|
will have a scanner that filters comments out of c source files but keeps re2c
|
|
comments.
|
|
|
|
The first scanner can be generated with:
|
|
|
|
re2c -s -o t.c strip_001.s.re
|
|
|
|
In the second step we will learn about YYMARKER that stores backtracking
|
|
information.
|
|
|
|
re2c -s -0 t.c strip_002.b.re
|
|
|
|
The third step brings trailing contexts that are stored in YYCTXMARKER. We also
|
|
change to use -b instead of -s option since the scanner gets more and more
|
|
complex.
|
|
|
|
re2c -b -0 t.c strip_002.b.re
|