X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2FDEVEL%2Fmathml_editor%2Fdoc%2Fspec.tex;h=504825ae6bf8306126e5beda26f780d2c2928c6f;hb=ab1ea1988436efdac3c8148cd8310997d0122a39;hp=55e17218a5ac2b11195f426def7c3c55852b1796;hpb=d861d72d1e53f4f3252c91ed14615fdbf5686301;p=helm.git

diff --git a/helm/DEVEL/mathml_editor/doc/spec.tex b/helm/DEVEL/mathml_editor/doc/spec.tex
index 55e17218a..504825ae6 100644
--- a/helm/DEVEL/mathml_editor/doc/spec.tex
+++ b/helm/DEVEL/mathml_editor/doc/spec.tex
@@ -28,13 +28,8 @@
 \newcommand{\CELL}{\texttt{cell}}
 \newcommand{\ROW}{\texttt{row}}
 \newcommand{\SLDROP}{\blacktriangleleft}
-\newcommand{\SLDSCRIPT}{\blacktriangleleft_{s}}
 \newcommand{\NLDROP}{\vartriangleleft}
-\newcommand{\RGROUP}{\vartriangleleft_{rg}}
-\newcommand{\NLDGP}{\vartriangleleft_{g}}
-\newcommand{\NLDSCRIPT}{\vartriangleleft_{s}}
-\newcommand{\NLDMACRO}{\vartriangleleft_{c}}
-\newcommand{\NLDTABLE}{\vartriangleleft_{t}}
+\newcommand{\RDROP}{\vartriangleright}
 
 \begin{document}
 
@@ -523,48 +518,34 @@ cursor with \ONODE{}, append $\tadvance$ after the \ONODE{} node
 
 \begin{description}
 
-  %*******************************************************************************************************
-  %************** rules handling the case in which the cursor has a preceding node ***********************
-  %*******************************************************************************************************
-
-  %************** cursor's parent is a group or a parameter (a p node)
-
-  \item{\verb+<g|p>[(i|n|o|s|c[!*])#]/cursor+}\\
-  remove the token.
-
-  \item{\verb+<g|p>[g#]/cursor+}\\
-  remove the cursor and append it to the \G{} node.
-
-  \item{\verb+<g|p>[<sp|sb>#]cursor+}\\
-  remove the cursor and append the $\SLDSCRIPT$
+  \item{\verb+cursor+}\\
+  replace the cursor with the $\SLDROP$.
 
-  \item{\verb+<g|p>[c[p[@right-open="1"]$]#]/cursor+}\\
-  remove the cursor and append the it to the \PNODE{} node.
+\end{description}
 
-  % remember to add the rules handling the primes
+\section{Right Drop Rules}
 
-  %*************************************************************************************************
-  %*********** rules handling the case in which the cursor has no preceding nodes ******************
-  %*************************************************************************************************
+\begin{description}
 
-  \item{\verb+g[@id][^#$]/cursor+}\\
-  replace the \G{} node with the cursor.
+  \item{\verb+cursor+}\\
+  replace the cursor with the $\RDROP$.
 
 \end{description}
 
-\section{Right Drop Rules}
-
 \section{$\varepsilon$-rules}
 
 \paragraph{Nromal Left Drop}
 
 \begin{description}
 
+  \item{\verb+math/g[^#]/+$\NLDROP$}\\
+  repalce the $\NLDROP$ with the cursor.
+
   %**************************************************************************************
   %****************************** epsilon-rules with \NLDROP ****************************
   %**************************************************************************************
 
-  %***************************** \NLDROP has no preceding nodes *************************
+  %**************  \NLDROP has neither preceding nor following nodes ********************
 
   \item{\verb+math[^#$]/+$\NLDROP$}\\
   replace the $\NLDROP$ with the cursor.
@@ -572,19 +553,10 @@ cursor with \ONODE{}, append $\tadvance$ after the \ONODE{} node
   \item{\verb+g[^#$]/+$\NLDROP$}\\
   replace the \G{} node with the $\NLDROP$.
 
-  % this rule overrides the rule above
-  \item{\verb+math/g[^#$]/+$\NLDROP$}\\
-  replace the $\NLDROP$ with the cursor.
-
+  % this rule is overridden by the two ones below
   \item{\verb+c/p[^#$]/+$\NLDROP$}\\
   remove the $\NLDROP$ and insert it before the \PNODE{} node.
 
-  \item{\verb+cell[^#$]/+$\NLDROP$}\\
-  replace the cell with the $\NLDROP_n$.
-
-  \item{\verb+table[^#$]/+$\NLDROP$}\\
-  replace the \TABLE{} node with the $\NLDROP$.
-
   \item{\verb+c[p[@left-open='1'][*]#$]/p[@right-open='1'][^#$]/+$\NLDROP$}\\
   replace the \CNODE{} node with the content of the first \PNODE{} node and insert the $\NLDROP$ after this content
 
@@ -594,6 +566,12 @@ cursor with \ONODE{}, append $\tadvance$ after the \ONODE{} node
   \item{\verb+c[^#][!p(*)]/+$\NLDROP$}\\
   replace the \CNODE{} node with the $\NLDROP$.
 
+  \item{\verb+cell[^#$]/+$\NLDROP$}\\
+  replace the cell with the $\NLDROP_n$.
+
+  \item{\verb+table[^#$]/+$\NLDROP$}\\
+  replace the \TABLE{} node with the $\NLDROP$.
+
   %************************* \NLDROP has at least one preceding node *********************
 
   % general rules
@@ -603,7 +581,7 @@ cursor with \ONODE{}, append $\tadvance$ after the \ONODE{} node
   remove the $\NLDROP$ and append it as the last child of its ex preceding brother.
 
   % this rule overrides the one above
-  \item{\verb+*[<i|n|o|s>#]/+$\NLDROP$}\\
+  \item{\verb+*[(i|n|o|s|c[!*])#]/+$\NLDROP$}\\
   remove the $\NLDROP$ and replace the token with the $\NLDROP_n$.
 
   % special rules
@@ -637,13 +615,104 @@ cursor with \ONODE{}, append $\tadvance$ after the \ONODE{} node
 
   % special rules
 
-  \item{\verb+math/g[^#*]/+$\NLDROP$}\\
-  replace the $\NLDROP$ with the cursor.
-
   % this rule is applicable to all macros.
   \item{\verb+c[^#][p[*]]/+$\NLDROP$}\\
   remove the $\NLDROP$ and insert it before the \CNODE{} node.
 
+\end{description}
+
+\paragraph{Special Left Drop}
+
+\begin{description}
+
+  %********************************************************************************************************
+  %************************************ epsilon-rules with \SLDROP ****************************************
+  %********************************************************************************************************
+
+  \item{\verb+math/+$\SLDROP$}\\
+  replace the $\SLDROP$ with the cursor.
+
+  \item{\verb+math/g[^#]/+$\NLDROP$}\\
+  replace the $\NLDROP$ with the cursor.
+
+  %************************ \SLDROP has neither preceding nor following nodes *****************************
+
+  \item{\verb+g[^#$]/+$\SLDROP$}\\
+  replace the \G{} node with the cursor.
+
+  \item{\verb+c[p[@left-open='1'][*]#$]/p[@right-open='1'][^#$]/+$\SLDROP$}\\
+  replace the \CNODE{} node with the content of the first \PNODE{} node and insert the cursor after this content
+
+  \item{\verb+c[p[@left-open='1'][!*]#$]/p[@right-open='1'][^#$]/+$\SLDROP$}\\
+  replace the \CNODE{} node with the cursor.
+
+  \item{\verb+c/p[^#$]/+$\SLDROP$}\\
+  remove the $\SLDROP$ and insert it before the \PNODE{} node.
+
+  \item{\verb+c[^#][!p(*)]/+$\SLDROP$}\\
+  replace the \CNODE{} node with the cursor.
+
+  \item{\verb+cell[^#$]/+$\SLDROP$}\\
+  replace the cell with the $\NLDROP_n$.
+
+  \item{\verb+table[^#$]/+$\SLDROP$}\\
+  replace the \TABLE{} node with the cursor.
+
+  %*********************** \SLDROP has at least one preceding node ***********************************
+
+  \item{\verb+*[sp[!@id][^*g[!@id][^o[@name='prime']++\verb+o[@name='prime']$]]#]/+$\SLDROP$}\\
+  remove the last \ONODE{} node and replace the $\SLDROP$ with the cursor.
+
+  \item{\verb+*[sp[!@id][^*g[!@id][^o[@name='prime']$]]#]/+$\SLDROP$}\\
+  replace the script with its first child and replace the $\SLDROP$ with the cursor.%$\NLDROP_n$.
+
+  \item{\verb+<sp|sb>[^g[!@id][!*]#$]/+$\SLDROP$}\\
+  replace the script with the cursor.
+
+  % this rule is overridden by the three rules above.
+  \item{\verb+<sp|sb>[^*#$]+/$\SLDROP$}\\
+  replace the script node with its first child and insert the cursor after it.
+
+  \item{\verb+c[(i|n|o|s|c[!*])#]/+$\SLDROP$}\\
+  remove the $\SLDROP$ and insert the cursor before the delimiter.
+
+  \item{\verb+c[p#(i|n|o|s|c[!*])]/+$\SLDROP$}\\
+  remove the $\SLDROP$ and insert the cursor into the \PNODE{} node.
+
+  \item{\verb+c[p[@right-open='1']#]+}\\
+  remove the $\SLDROP$ and append the curor as last child of the \PNODE{} node.
+
+  % this rule is overridden by the two ones above.
+  \item{\verb+c[p#]/+$\SLDROP$}\\
+  move the $\SLDROP$ into the \PNODE{} node.
+
+  \item{\verb+*[(i|n|o|s|c[!*])#]/+$\SLDROP$}\\
+  remove the $\SLDROP$ and replace the token with the cursor.
+
+  \item{\verb+*[table#]/+$\SLDROP$}\\
+  remove the $\SLDROP$ and append the $\NLDROP_n$ as the last child of the \TABLE{} node.
+
+  \item{\verb+*[c#]/+$\SLDROP$}\\
+  move the $\SLDROP$ into the \CNODE{} node.
+
+  \item{\verb+*[g#]/+$\SLDROP$}\\
+  remove the $\SLDROP$ and append the cursor as the last child of the \G{} node.
+
+  %********** \SLDROP has no preceding node, but has following ones **************
+
+  \item{\verb+c[^#p][p(*)]/+$\SLDROP$}\\
+  remove the $\SLDROP$ and insert the cursor before the \CNODE{} node.
+
+  % general rule
+  \item{\verb+*[^#*]/+$\SLDROP$}\\
+  remove the $\SLDROP$ and insert the cursor before its parent.
+
+\end{description}
+
+\paragraph{Normalize Left Drop}
+
+\begin{description}
+
   %****************************************************************************************
   %***************************** epsilon-rules with \NLDROP_n *****************************
   %****************************************************************************************
@@ -661,18 +730,57 @@ cursor with \ONODE{}, append $\tadvance$ after the \ONODE{} node
   remove the $\NLDROP_n$ and append it as last child of the \ROW{} node.
 
   \item{\verb+table[^#$]/+$\NLDROP_n$}\\
-  replace the \texttt{table} with the cursor.%$\NLDROP_n$.
+  replace the \TABLE{} with the cursor.%$\NLDROP_n$.
 
   \item{\verb+g[@id][^#$]/+$\NLDROP_n$}\\
   replace the \G{} node with the $\NLDROP_n$.
 
+  \item{$\NLDROP_n$}\\
+  replace the $\NLDROP_n$ with the cursor.
+
 \end{description}
 
-\paragraph{Special Left Drop}
+\paragraph{Right Drop}
+
+\begin{description}
+
+  %************************* \RDROP has at least a following node ****************************************
+
+  \item{\verb+c[#(i|n|o|s|c[!*])]/+$\RDROP$}\\
+  remove the $\RDROP$ and append it after the delimiter
+
+  \item{\verb+*[#(i|n|o|s|c[!*])]/+$\RDROP$}\\
+  remove the token and replace the $\RDROP$ with the cursor $\RDROP_n$.
+
+  % this rule is overridden by those ones above.
+  \item{\verb+*[#*]/+$\RDROP$}\\
+  remove the $\RDROP$ and append it as the first child of the following node.
 
-%\begin{description}
+  %************************** \RDROP has neither following nor preceding nodes ******************************
 
-%\end{description}
+  \item{\verb+c[#$][!p[*]]/+$\RDROP$}\\
+  replace the \CNODE{} with the $\RDROP$.
+
+  \item{\verb+p[^#$]/+$\RDROP$}\\
+  move the $\RDROP$ after the \PNODE{} node.
+
+  \item{\verb+g[^#$]/+$\RDROP$}\\
+  replace the \G{} node with the $\RDROP$.
+
+\end{description}
+
+\paragraph{Normalize Right Drop}
+
+\begin{description}
+
+  % at the moment it's the only rule, defined for this symbol.
+  \item{\verb+g[@id][^#$]/+$\RDROP_n$}\\
+  replace the \G{} node with the $\RDROP_n$.
+
+  \item{$\RDROP_n$}\\
+  replace the $\RDROP$ with the cursor.
+
+\end{description}
 
 \paragraph{Advance}