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A program analyzer for source code search engine.
C Ruby OCaml
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ext/langscan
lib
script
tasks
test
.gitignore
AUTHORS.txt
BUILD.rdoc
History.txt
Manifest.txt
README.rdoc
Rakefile
metaconfig
setup.rb

README.rdoc

LangScan

DESCRIPTION:

LangScan is a program analyzer for source code search engine.

FEATURES/PROBLEMS:

  • Support Languages

    • C

    • C++

    • C#

    • Java

    • JavaScript

    • Ruby

    • Python

    • PHP

    • Perl

    • Objective Caml

    • Brainfuck

    • CSS

    • Shell Script

    • Emacs Lisp

    • Scheme

    • Plain Text

    • Io

    • Lua

    • Eiffel

SYNOPSIS:

Example1

% cat -n hello.c
     1  #include <stdio.h>
     2
     3  int main(int argc, char **argv)
     4  {
     5    printf("Hello World.\n");
     6    return 0;
     7  }
% ruby -rlangscan/c -e 'LangScan::C.scan(ARGF.readlines.join) {|f| p f}' < hello.c
#<LangScan::Fragment space " " 1 (8)>
#<LangScan::Fragment ident "stdio" 1 (10)>
#<LangScan::Fragment punct "." 1 (15)>
#<LangScan::Fragment space "\n" 2 (19)>
#<LangScan::Fragment space " " 3 (23)>
#<LangScan::Fragment preproc_beg "#" 1 (0)>
#<LangScan::Fragment ident "include" 1 (1)>
...

Example2

% cat -n display_fundef.rb
   1  require 'langscan'
   2
   3  # display all function definitions.
   4  ARGV.each {|arg|
   5    next unless scanner = LangScan.choose(arg)
   6    scanner.scan(File.open(arg).readlines.join) {|f|
   7      if f.type == :fundef
   8        puts f.text
   9      end
  10    }
  11  }
% ruby display_fundef.rb hello.c
main

REQUIREMENTS:

  • Ruby 1.8.2+

  • Perl + PPI module (for source codes written in Perl)

  • OCaml (for source codes written in OCaml)

INSTALL:

$ sudo gem install langscan

LICENSE:

Copyright (C) 2004-2005 Satoru Takabayashi <satoru@namazu.org>

All rights reserved.

This is free software with ABSOLUTELY NO WARRANTY.

You can redistribute it and/or modify it under the terms of the GNU General Public License version 2.

AUTHORS:

see 'AUTHORS.txt'

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