Bootstrap Scheme v0.1 (Integers) in Ada
I did decide to follow along with Peter Michaux's Scheme from Scratch series in Ada, and I just finished v0.1 (Integers), which you can find on GitHub.
$ gnatmake scheme.adb gcc-4.3 -c -gnatVa -gnatwa -g -gnato -fstack-check -gnat05 scheme.adb scheme.adb:131:15: warning: "others" choice is redundant scheme.adb:131:15: warning: previous choices cover all values gnatbind -x scheme.ali gnatlink scheme.ali -g -fstack-check $ ./scheme Welcome to Bootstrap Scheme -- Ada version. > 34 34 > 235 235 > 23543 23543 > ^C
Surprisingly, my v0.1 Ada implementation is only 119 LOC, while Peter's v0.1 C
implementation was 126 LOC1. I expect this to reverse very soon
because I feel that string manipulation in Ada is more obtuse than within C and
Read function which handles parsing will quickly become the
most unwieldy part of the code. How did I end up with a marginally shorter
number of lines this round, though? My guess is that all the brackets is what
racked up the LOC for Peter since my code is pretty much a straight one-to-one,
C-to-Ada port of his original code.
I'm having fun learning a lot about language implementations, Ada, and C too. I look forward to getting some free time to play catch up with Peter who is already at v0.8!
- According to GitHub's count for LOC.