From 40220a2365104a2807caf2fcf895f83e1a21539a Mon Sep 17 00:00:00 2001
From: Ludovic Courtes
Date: Sun, 24 Jun 2007 19:52:01 +0000
Subject: eq: Implemented equation numbering.
* src/guile/skribilo/package/base.scm (chapter): Augmented environment to
include `equation-env' and `equation-counter'.
* src/guile/skribilo/package/eq.scm: Use `(skribilo resolve)'.
(equation-number-string): New.
(eq)[:number]: New option.
Handle it.
* src/guile/skribilo/package/eq/lout.scm (eq): Prepare to handle
`:number'.
git-archimport-id: skribilo@sv.gnu.org--2006/skribilo--devo--1.2--patch-118
---
src/guile/skribilo/package/base.scm | 3 ++-
src/guile/skribilo/package/eq.scm | 34 +++++++++++++++++++++++++++++++---
src/guile/skribilo/package/eq/lout.scm | 19 +++++++++++--------
3 files changed, 44 insertions(+), 12 deletions(-)
(limited to 'src/guile')
diff --git a/src/guile/skribilo/package/base.scm b/src/guile/skribilo/package/base.scm
index 29eb2df..28cd0fb 100644
--- a/src/guile/skribilo/package/base.scm
+++ b/src/guile/skribilo/package/base.scm
@@ -203,7 +203,8 @@
,@(the-options opts :ident :class)))
(body (the-body opts))
(env (list (list 'section-counter 0) (list 'section-env '())
- (list 'footnote-counter 0) (list 'footnote-env '())))))
+ (list 'footnote-counter 0) (list 'footnote-env '())
+ (list 'equation-counter 0) (list 'equation-env '())))))
;*---------------------------------------------------------------------*/
;* section-number ... */
diff --git a/src/guile/skribilo/package/eq.scm b/src/guile/skribilo/package/eq.scm
index 9b03aef..211a9bd 100644
--- a/src/guile/skribilo/package/eq.scm
+++ b/src/guile/skribilo/package/eq.scm
@@ -27,7 +27,8 @@
:use-module (skribilo utils syntax)
:use-module (skribilo utils keywords) ;; `the-options', etc.
:autoload (skribilo package base) (it symbol sub sup)
- :autoload (skribilo engine lout) (lout-illustration)
+ :autoload (skribilo engine lout) (lout-illustration)
+ :autoload (skribilo resolve) (resolve-counter)
:use-module (srfi srfi-1)
:use-module (srfi srfi-39)
@@ -207,6 +208,18 @@ a symbol representing the mathematical operator denoted by @var{m} (e.g.,
(current-module)))
+(define-public (equation-number-string equation)
+ "Return an appropriate document-wide number for @var{equation}."
+ (and (is-markup? equation 'eq)
+ (not (inline-equation? equation))
+ (let ((num (markup-option equation :number)))
+ (and (number? num)
+ (let ((chapter (ast-chapter equation)))
+ (and (markup? chapter)
+ (string-append
+ (number->string (markup-option chapter :number)) "."
+ (number->string num))))))))
+
;;;
;;; Markup.
@@ -224,7 +237,8 @@ a symbol representing the mathematical operator denoted by @var{m} (e.g.,
(define-markup (eq :rest opts :key (ident #f) (class "eq")
(inline? 'auto) (align-with #f)
(renderer #f) (div-style 'over)
- (mul-style 'space))
+ (mul-style 'space)
+ (number #f))
(new container
(markup 'eq)
(ident (or ident (symbol->string (gensym "eq"))))
@@ -232,9 +246,23 @@ a symbol representing the mathematical operator denoted by @var{m} (e.g.,
(loc &invocation-location)
(options `((:div-style ,div-style) (:align-with ,align-with)
(:mul-style ,mul-style) (:inline? ,inline?)
+ (:number ,(cond ((not number) #f)
+ ((string? number) number)
+ (else
+ (new unresolved
+ (proc (lambda (n e env)
+ (let* ((p? (assq 'parent env))
+ (p (and (pair? p?)
+ (cadr p?))))
+ (and (is-markup? p 'eq)
+ (not (inline-equation? p))
+ (resolve-counter n env
+ 'equation
+ number)))))))))
,@(the-options opts
:ident :class :inline?
- :div-style :mul-style :align-with)))
+ :div-style :mul-style :align-with
+ :number)))
(body (let loop ((body (the-body opts))
(result '()))
(if (null? body)
diff --git a/src/guile/skribilo/package/eq/lout.scm b/src/guile/skribilo/package/eq/lout.scm
index 9b27a7e..017b1f8 100644
--- a/src/guile/skribilo/package/eq/lout.scm
+++ b/src/guile/skribilo/package/eq/lout.scm
@@ -57,20 +57,23 @@
:after "\n@EndAlignedDisplays\n")
(markup-writer 'eq (find-engine 'lout)
- :options '(:inline? :align-with :div-style :mul-style)
+ :options '(:inline? :align-with :div-style :mul-style :number)
:before (lambda (node engine)
(let* ((parent (ast-parent node))
- (displayed? (is-markup? parent 'eq-display)))
+ (displayed? (is-markup? parent 'eq-display))
+ ;;(number (equation-number-string node))
+ )
+ ;; FIXME: Use NUMBER when `@BypassNumber' is available.
(format #t "~a{ "
(if (and displayed? (not (*embedded-renderer*)))
"\n@IAD " ""))))
:action (lambda (node engine)
- (display (if (inline-equation? node)
- "@OneRow @OneCol @E { "
- "@Eq { "))
- (let ((eq (markup-body node)))
- ;;(fprint (current-error-port) "eq=" eq)
- (output eq engine)))
+ (display (if (inline-equation? node)
+ "@OneRow @OneCol @E { "
+ "@Eq { "))
+ (let ((eq (markup-body node)))
+ ;;(fprint (current-error-port) "eq=" eq)
+ (output eq engine)))
:after " } }")
--
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