mirror of https://github.com/texmacs/doc.git
Fixed some typos in docs
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@ -1,4 +1,4 @@
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<TeXmacs|1.0.7.15>
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<TeXmacs|1.0.7.19>
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<style|tmdoc>
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@ -45,7 +45,7 @@
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procedures, one to handle the requests, another to create the document.
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<\session|scheme|default>
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<\unfolded-io|Scheme] >
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<\folded-io|Scheme] >
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(tm-define (simple-load header body)
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\ \ `(document
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@ -55,13 +55,9 @@
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\ \ \ \ \ (style (tuple "generic"))
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\ \ \ \ \ (body (document (section ,header) ,body))))
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<|unfolded-io>
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((guile-user))
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</unfolded-io>
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<\input|Scheme] >
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<|folded-io>
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\;
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</input>
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</folded-io>
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</session>
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As you can see, we don't do much other than creating a <TeXmacs> document.
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@ -70,7 +66,7 @@
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possible buffers.
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<\session|scheme|default>
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<\unfolded-io|Scheme] >
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<\folded-io|Scheme] >
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(tmfs-load-handler (simple qry)
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\ \ (let ((type (query-ref qry "type"))
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@ -88,9 +84,9 @@
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\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ (string-append "Query
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unknown: " what)))))))
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<|unfolded-io>
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#\<less\>procedure #f (qry)\<gtr\>
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</unfolded-io>
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<|folded-io>
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\;
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</folded-io>
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</session>
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We can test this right away with:
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@ -111,22 +107,22 @@
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and the window's title using a <em|title handler>:
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<\session|scheme|default>
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<\unfolded-io|Scheme] >
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<\folded-io|Scheme] >
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(tmfs-permission-handler (simple name type)\
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\ \ (display* "Name= " name "\\nType= " type "\\n")
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\ \ #t)
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<|unfolded-io>
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#\<less\>procedure #f (name type)\<gtr\>
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</unfolded-io>
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<|folded-io>
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\;
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</folded-io>
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<\unfolded-io|Scheme] >
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<\folded-io|Scheme] >
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(tmfs-title-handler (simple qry doc) "Simple handler - Some title
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here")
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<|unfolded-io>
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#\<less\>procedure #f (qry doc)\<gtr\>
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</unfolded-io>
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<|folded-io>
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\;
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</folded-io>
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</session>
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<\explain>
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@ -219,4 +215,7 @@
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</explain>
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<tmdoc-copyright|2012|the <TeXmacs> team.>
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</body>
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</body>
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<initial|<\collection>
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</collection>>
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@ -1,18 +1,18 @@
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<TeXmacs|1.0.1.11>
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<TeXmacs|1.0.7.19>
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<style|tmdoc>
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<\body>
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<expand|tmdoc-title|The boxes produced by the typesetter>
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<tmdoc-title|The boxes produced by the typesetter>
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<section|Introduction>
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The <apply|TeXmacs> typesetter essentially translates a document
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represented by a tree into a graphical box, which can either be displayed
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on the screen or on a printer. Contrary to a system like <apply|LaTeX>, the
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graphical box actually contains much more information than is necessary for
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a graphical rendering. Roughly speaking, this information can be subdivided
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into the following categories:
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The <TeXmacs> typesetter essentially translates a document represented by a
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tree into a graphical box, which can either be displayed on the screen or
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on a printer. Contrary to a system like <LaTeX>, the graphical box actually
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contains much more information than is necessary for a graphical rendering.
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Roughly speaking, this information can be subdivided into the following
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categories:
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<\itemize>
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<item>Logical and physical bounding boxes.
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@ -21,7 +21,7 @@
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<item>Miscellaneous typesetting information.
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<item>Keeping track of the source subtree which led to box.
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<item>Keeping track of the source subtree which led to the box.
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<item>Computing the positions of cursors and selections.
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@ -81,28 +81,27 @@
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More precisely, we have to deal with three kinds of paths:
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<\description>
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<expand|item*|Tree paths.>These paths correspond to paths in the source
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tree. Actually, the path minus its last item points to a subtree of the
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source tree. The last item gives a position in this subtree: if the
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subtree is a leaf, i.e. a string, it is a position in this string.
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Otherwise a zero indicates a position before the subtree and a one a
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position after the subtree.
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<item*|Tree paths>These paths correspond to paths in the source tree.
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Actually, the path minus its last item points to a subtree of the source
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tree. The last item gives a position in this subtree: if the subtree is a
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leaf, i.e. a string, it is a position in this string. Otherwise a zero
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indicates a position before the subtree and a one a position after the
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subtree.
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<expand|item*|Inverse paths.>These are just reverted tree paths (with
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shared tails), with an optional negative head. A negative head indicates
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that the tree path is not accessible, i.e. the corresponding subtree does
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not correspond to editable content. If the negative value is
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<with|mode|math|-2>, <with|mode|math|-3> or <with|mode|math|-4>, then a
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zero or one has to be put behind the tree path, depending on the value
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and the cursor position.
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<item*|Inverse paths>These are just reverted tree paths (with shared
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tails), with an optional negative head. A negative head indicates that
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the tree path is not accessible, i.e. the corresponding subtree does not
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correspond to editable content. If the negative value is <math|-2>,
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<math|-3> or <math|-4>, then a zero or one has to be put behind the tree
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path, depending on the value and the cursor position.
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<expand|item*|Box paths.>These paths correspond to logical paths in the
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box tree. Again, the path minus its last item points to a subbox of the
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main box, and the last item gives a position in this subtree: if the
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subbox corresponds to a text box it is a position in this text. Otherwise
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a zero indicates a position before the subbox and a one a position after
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it. In the case of side boxes, a two and a three may also indicate the
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position after the left script resp. before the right script.
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<item*|Box paths>These paths correspond to logical paths in the box tree.
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Again, the path minus its last item points to a subbox of the main box,
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and the last item gives a position in this subtree: if the subbox
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corresponds to a text box it is a position in this text. Otherwise a zero
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indicates a position before the subbox and a one a position after it. In
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the case of side boxes, a two and a three may also indicate the position
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after the left script resp. before the right script.
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</description>
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<subsection|The conversion routines>
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@ -138,21 +137,19 @@
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<section|The cursor and selections>
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In order to fulfill the requirement of being a ``structured editor'',
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<apply|TeXmacs> needs to provide a (reasonably) complete correspondence
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between logical tree paths and physical cursor positions. This yields an
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additional difficulty in the case of ``environment changes'', such as a
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change in font or color. Indeed, when you are on the border of such a
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change, it is not clear <with|font shape|italic|a priori> which environment
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you are in.
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<TeXmacs> needs to provide a (reasonably) complete correspondence between
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logical tree paths and physical cursor positions. This yields an additional
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difficulty in the case of ``environment changes'', such as a change in font
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or color. Indeed, when you are on the border of such a change, it is not
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clear <with|font-shape|italic|a priori> which environment you are in.
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In <apply|TeXmacs>, the cursor position therefore contains an
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<with|mode|math|x> and a <with|mode|math|y> coordinate, as well as an
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additional infinitesimal <with|mode|math|x>-coordinate, called
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<with|mode|math|\<delta\>>. A change in environment is then represented by
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a box with an infinitesimal width. Although the
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<with|mode|math|\<delta\>>-position of the cursor is always zero when you
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select using the mouse, it may be non zero when moving around using the
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cursor keys. The linear time routine:\
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In <TeXmacs>, the cursor position therefore contains an <math|x> and a
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<math|y> coordinate, as well as an additional infinitesimal
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<math|x>-coordinate, called <math|\<delta\>>. A change in environment is
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then represented by a box with an infinitesimal width. Although the
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<math|\<delta\>>-position of the cursor is always zero when you select
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using the mouse, it may be non zero when moving around using the cursor
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keys. The linear time routine:\
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<\verbatim>
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\ \ \ \ virtual path box_rep::find_box_path (SI x, SI y, SI delta)
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@ -166,10 +163,10 @@
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</verbatim>
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yields a graphical representation for the cursor at a certain box path. The
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cursor is given by its <with|mode|math|x>, <with|mode|math|y> and
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<with|mode|math|\<delta\>> coordinates and a line segment relative to this
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origin, given by its extremities <with|mode|math|(x<rsub|1>,y<rsub|1>)> and
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<with|mode|math|(x<rsub|2>,y<rsub|2>)>.
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cursor is given by its <math|x>, <math|y> and <math|\<delta\>> coordinates
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and a line segment relative to this origin, given by its extremities
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<math|<around|(|x<rsub|1>,y<rsub|1>|)>> and
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<math|<around|(|x<rsub|2>,y<rsub|2>|)>>.
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In a similar way, the routine:\
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@ -181,68 +178,18 @@
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comprises two delimiting tree paths and a graphical representation in the
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form of a list of rectangles.
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<apply|tmdoc-copyright|1998--2002|Joris van der Hoeven>
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<tmdoc-copyright|1998--2002|Joris van der Hoeven>
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<expand|tmdoc-license|Permission is granted to copy, distribute and/or
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modify this document under the terms of the GNU Free Documentation License,
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Version 1.1 or any later version published by the Free Software Foundation;
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with no Invariant Sections, with no Front-Cover Texts, and with no
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Back-Cover Texts. A copy of the license is included in the section entitled
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"GNU Free Documentation License".>
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<tmdoc-license|Permission is granted to copy, distribute and/or modify this
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document under the terms of the GNU Free Documentation License, Version 1.1
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or any later version published by the Free Software Foundation; with no
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Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
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Texts. A copy of the license is included in the section entitled "GNU Free
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Documentation License".>
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</body>
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<\initial>
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<\collection>
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<associate|paragraph width|150mm>
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<associate|odd page margin|30mm>
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<associate|shrinking factor|4>
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<associate|page right margin|30mm>
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<associate|page top margin|30mm>
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<associate|reduction page right margin|25mm>
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<associate|page type|a4>
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<associate|reduction page bottom margin|15mm>
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<associate|even page margin|30mm>
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<associate|reduction page left margin|25mm>
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<associate|page bottom margin|30mm>
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<associate|reduction page top margin|15mm>
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<associate|language|english>
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</collection>
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</initial>
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<\references>
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<\collection>
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<associate|idx-1|<tuple|<uninit>|?>>
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<associate|toc-1|<tuple|1|?>>
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<associate|toc-2|<tuple|2|?>>
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<associate|idx-2|<tuple|<uninit>|?>>
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<associate|toc-3|<tuple|2.1|?>>
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<associate|toc-4|<tuple|2.2|?>>
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<associate|toc-5|<tuple|2.3|?>>
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<associate|toc-6|<tuple|3|?>>
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<associate|toc-7|<tuple|4.|?>>
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</collection>
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</references>
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<\auxiliary>
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<\collection>
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<\associate|toc>
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<vspace*|1fn><with|font series|<quote|bold>|math font
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series|<quote|bold>|1<space|2spc>Introduction><value|toc-dots><pageref|toc-1><vspace|0.5fn>
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<vspace*|1fn><with|font series|<quote|bold>|math font
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series|<quote|bold>|2<space|2spc>The correspondence between a box and
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its source><value|toc-dots><pageref|toc-2><vspace|0.5fn>
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2.1<space|2spc>Discussion of the problems being
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encountered<value|toc-dots><pageref|toc-3>
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2.2<space|2spc>The three kinds of paths<value|toc-dots><pageref|toc-4>
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2.3<space|2spc>The conversion routines<value|toc-dots><pageref|toc-5>
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<vspace*|1fn><with|font series|<quote|bold>|math font
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series|<quote|bold>|3<space|2spc>The cursor and
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selections><value|toc-dots><pageref|toc-6><vspace|0.5fn>
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</associate>
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</collection>
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</auxiliary>
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</initial>
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@ -1,4 +1,4 @@
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<TeXmacs|1.0.7.14>
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<TeXmacs|1.0.7.19>
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<style|tmdoc>
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@ -72,8 +72,8 @@
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<scm|texmacs-main-icons>, <scm|texmacs-mode-icons>,
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<scm|texmacs-focus-icons> and <scm|texmacs-extra-icons>. Other standard
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indirect menus are <scm|file-menu>, <scm|edit-menu>, <scm|insert-menu>,
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<scm|text-menu>, <scm|paragraph-menu>, <scm|document-menu>,
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<scm|options-menu> and <scm|help-menu>.
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<scm|text-menu>, <scm|paragraph-menu>, <scm|document-menu> and
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<scm|help-menu>.
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<tmdoc-copyright|1998--2002|Joris van der Hoeven>
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