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;;; compiler.skb  --  The Skribilo compiler.
;;;
;;; Copyright 2008  Ludovic Court�s <ludo@gnu.org>
;;; Copyright 2001, 2002, 2003, 2004  Manuel Serrano
;;;
;;;
;;; This program is free software; you can redistribute it and/or modify
;;; it under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 2 of the License, or
;;; (at your option) any later version.
;;;
;;; This program is distributed in the hope that it will be useful,
;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with this program; if not, write to the Free Software
;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
;;; USA.

;*---------------------------------------------------------------------*/
;*    The compiler                                                     */
;*---------------------------------------------------------------------*/
(chapter :title "Skribilo Compiler"
         :ident "compiler"

(index "skribilo" :note "compiler")
(p [This chapter introduces the Skribilo compiler, i.e., the tool that
turns input documents into various output formats.])

;; Synopsis
(section :title "Synopsis" :number #f 

   (p (compiler-command "skribilo" "options" "input")))

;; Description
(section :title "Description" :number #f

   (p [The ,(tt [skribilo]) compiler turns Skribilo input documents into
one of a variety of output formats, including HTML, LaTeX and Lout.  The
input format is specified using the ,(tt [--reader]) command-line
option, while the output format is specified using the ,(tt [--target])
option.  These options and others are described below.]))

;; Suffixes
(section :title "Suffixes" :number #f

   (p [A number of file name extensions are used by convention:

,(description
    (item :key (tt ".skb")  [a Skribilo or Skribe source file.])
    (item :key (tt ".html") [an HTML target file.])
    (item :key (tt ".lout") [a Lout target file.])
    (item :key (tt ".tex")  [a TeX, LaTeX or ConTeXt target file.])
    (item :key (tt ".sui")  [a Skribe URL index file.]))]))


;; Options
(section :title "Options" :number #f

   (mark "skribilo compiler options")
   (p [The options supported by the ,(tt [skribilo]) compiler are listed
below.  They follow the usual GNU convention, i.e., each option can have
both a short name (a hyphen followed by a single character) and a long
name (two hyphens followed by a name).])

   (index "compatibility" :note "Skribe compatibility mode")

   (p (compiler-options '(skribilo)
        `(#\h          ,[Produce a help message.])
	`(#\V          ,[Show program version.])
	`(#\R "reader" ,[Use ,(tt "reader") to read the input file,
i.e., as the format of the input file.  Currently, two formats are
supported: ,(tt [skribe]), which corresponds to the Skribe syntax (see
,(numref :text [Chapter] :ident "syntax")), or ,(tt [outline]), which
corresponds to plain text (markup-less) following the structuring
conventions of ,(ref :text [Emacs' Outline mode] :url
"http://www.gnu.org/software/emacs/manual/html_node/emacs/Outline-Mode.html").])
	`(#\t "engine" ,[Use ,(tt "engine") as the engine, i.e., as
the output format.  For details on engines and for a list of supported
engines, see ,(numref :text [Chapter] :ident "engines").])
	`("compat" "compat" ,[Use ,(tt "compat") as the compatibility
mode.  This defaults to ,(tt [skribilo]).  Specifying ,(tt [skribe])
enables the ,(ref :text [Skribe] :url
"http://www-sop.inria.fr/mimosa/fp/Skribe/") compatibility mode, making
it possible to compile most Skribe documents.  Technically, the ,(tt
[skribe]) compatibility mode populates the name space of Skribilo
documents with bindings available to Skribe documents and that are not
available by default to Skribilo documents,(footnote [Skribe uses a
single name space for all the code of packages, documents, in addition
to bindings provided by the underlying Scheme implementation.]) (e.g.,
,(srfi-ref 1) functions, Bigloo's hash table API, etc.); for Skribe
functions not available in Skribilo, such as ,(tt [skribe-load]), a
compatible implementation is provided.])
        `(#\o "file" ,[Write output to ,(tt [file]).])

	`(#\I "dir"  ,[Prepend ,(tt [dir]) to the document include path.])
	`(#\B "dir"  ,[Prepend ,(tt [dir]) to the bibliography include path.])
	`(#\S "dir"  ,[Prepend ,(tt [dir]) to the source include path.])
	`(#\P "dir"  ,[Prepend ,(tt [dir]) to the image include path.])

	`(#\b "base" ,[Strip ,(tt [base]) (an arbitrary string,
typically an URL) from all hyperlinks when producing ,(ref :mark
"html-engine" :text [HTML files]).])
	`(#\e "expr" ,[Prepend ,(tt [expr]) to the list of expressions
to be evaluated before the input document is processed.  ,(tt [expr]) is
evaluated in the document's environment/module; thus, this option can be
used to pass parameters to the document, e.g., with ,(tt [-e '(define
chbouib-enabled? "yes")']).])
        `(#\p "file" ,[Pre-load ,(tt [file]) before processing the input
document.  ,(tt [file]) is evaluated in the document's name space and
should be a regular Scheme file, i.e., it cannot use the ,(ref :text
[Skribe syntax] :ident "syntax").])
	
	`(#\v "level" ,[Be verbose, unless ,(tt [level]) is ,(tt [0]).])
	`(#\w "level" ,[Issue warnings, unless ,(tt [level]) is ,(tt [0]).])
	`(#\g "arg"   ,[Issue debugging output, unless ,(tt [arg]) is ,(tt
[0]).  If ,(tt [arg]) is not a number, it is interpreted as a symbol to
be watched.])
        `("no-color"  ,[By default, debugging output is colored on
capable terminals such as ,(tt [xterm]) or the Linux console (check your
,(tt [TERM]) environment variable).  This option turns coloring off.]))))


;; Environment variables
(section :title "Environment Variables" :number #f
   
   (p [The ,(tt [skribilo]) command does not pay attention to any
specific environment variable.  In particular, it does not honor the
,(tt [SKRIBEPATH]) variable that is recognized by Skribe.  Instead, you
should use the ,(tt [-I]) command-line option to specify the load path
of ,(emph [documents]) (see ,(markup-ref "include")), or, alternatively,
change the value of the ,(tt [GUILE_LOAD_PATH]) variable, which affects
Guile's own module load path.])))


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