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== Annot 0.9.1 == This is the source code for Annot, a tool to lookup annotations for Objective Caml source code. The main purpose is to lookup the type annotation for a given identifier in an OCaml source file from within an editor. Annot works by taking the line and column of the identifier and looking up the information in an annotations file produced by the OCaml compiler: $ annot -type 57 5 main.annot string -> (in_channel -> 'a) -> 'a The code above looks up the type annotation for an identifier in main.ml, at line 57, column 5. The invocation of this command is typically bound to a key in an editor rather than invoked explicitly in a shell. For full documentation, please refer to the manual page annot.pod. OCaml 3.09 introduced the -dtypes compiler flag that causes the compiler to write annotation files. Hence, invoking compiler runs with -dtypes keeps the annotation files up to date. Currently the compiler only generates type annotations; however, in principle other annotations could be looked up as well. INSTALLATION Annot is implemented in Objective Caml. To compile it from source code, try the following: ./configure --prefix=/usr/local make make install The configure script tries to locate all necessary tools and generates a file config.mk that is included by the main Makefile. If something goes wrong, try running "./configure -v". The latest tested version is OCaml 3.11.0 and 3.11.1. USING ANNOT FROM AN EDITOR To use Annot from Vim, include the following code into your ~/.vimrc file (also provided in editors/): function! OCamlType() let col = col('.') let line = line('.') let file = expand("%:p:r") echo system("annot -n -type ".line." ".col." ".file.".annot") endfunction map ,t :call OCamlType()<return> The key combination ",t" (without quotes) looks up the type annotation for the identifier under the cursor. Instructions for other editors can be found in the editors/ directory. SOURCE CODE The source code is a literate program for the NoWeb literate programming tools and resides in the *.nw file in directory src/. However, you don't need NoWeb to compile and install the Annot. The configure detects when NoWeb is installed otherwise uses Perl script tools/nofake to extract the Objective Caml code code from the *.nw files. If you have the NoWeb tool chain installs you can use make to produce PDF files from *.nw files by executing "make main.pdf", for example. Note that the Nofake tool that comes as part of the Annot source code is not enough to build the PDF documentation. For this you need the real NoWeb tools. These are available on Debian as package "nowebm". COPYRIGHT Please see the manual page annot.pod for the exact copyright. AUTHOR AND CONTACT Anil Madhavapeddy firstname.lastname@example.org http://anil.recoil.org Christian Lindig (original author) email@example.com http://www.cs.uni-sb.de/~lindig/