\newcommand{\SLDROP}{\blacktriangleleft}
\newcommand{\NLDROP}{\vartriangleleft}
\newcommand{\RGROUP}{\vartriangleleft_{rg}}
+\newcommand{\NLDGP}{\vartriangleleft_{g}}
+\newcommand{\NLDSCRIPT}{\vartriangleleft_{s}}
+\newcommand{\NLDMACRO}{\vartriangleleft_{c}} % at the moment it's not used.
\begin{document}
\begin{description}
- %********* rules that try to express situations completely specified (there is an effective deletion) ******
-
% in the rules below, a token is either an i node, an n node, an o node, an s node or an empty c node.
% an empty c node is either an undefined macro or an empty macro. These c node are handled as they actually were
% tokens (i, n, o, s).
% <g id="id1"><g id="id2">...<g id="idn"><cursor/></g>...</g></g> is equivalent to:
% <cursor/>
- \item{\verb+<g|p>[(i|n|o|s|c[ ])#]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ %************************************************************************************************************
+ %************************** there is at least one node preceding the cursor *********************************
+ %************************************************************************************************************
+
+ %************************** cursor's parent is a group or a parameter (p node).
+
+ \item{\verb+<g|p>[(i|n|o|s|c[!*])#]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ remove the cursor (and eventually the sequence of \G{} nodes with attribute \texttt{id}) and replace the token with the cursor.
+
+ \item{\verb+g[@id][(i|n|o|s|c[!*])#]/(g[@id][^#$]/++\verb+)?cursor+}\\
remove the cursor (and eventually the sequence of \G{} nodes with attribute \texttt{id}) and replace the token with the $\RGROUP$.
\item{\verb+<g|p>[g#]/(g[@id][^#$]/++\verb+)?cursor+}\\
- remove the cursor (and eventually the sequence of \G{} nodes with attribute \texttt{id}) and append $\NLDG$ to the \G{} node preceding the cursor
-
- %% there is an optional sequence of groups with id, all of which having one and only one child. The last
- %% child of this sequence (or the root, if the sequence is empty) is a group with id, has as first element a
- %% token and has as second and last element an eventually empty sequence of groups with id, all of which having
- %%one and only one child. The last element of this sequence has the cursor as its child.
- %\item{\verb+(g[@id][^#$]/++\verb+)?g[@id][^(i|n|o|s|c[ ])#$]/(g[@id][^#$]/++\verb+)?cursor+}\\
- %replace the whole fragment with the cursor.
-
- % the cursor is a macro's child. There is an eventually empty sequence of delimiters, which precedes the
- % cursor. Before this sequence, there is a p node. This p node has as its last child a token
- \item{\verb+c[p[(i|n|o|s|c[ ])$]((i|n|o|s|c[ ])*)#]/cursor+}\\
- remove the cursor and replace the token with the cursor.
-
- % there is a token, which precedes the cursor. The cursor is child of either a group or a parameter.
- % the case where the cursor is child of a group with id, there are no nodes after the cusror and there
- % are no nodes preceding the token, is handled by the first rule.
- % This rule is duplicated below, but that one could have a wrong syntax. This one has been tested.
- \item{\verb+<g|p>[(i|n|o|c[ ])#]/cursor+}\\
- remove the cursor and replace the token with the cursor.
-
- % cursor's parent is a script (the cursor is not the base). The script's base is an empty group with id.
- % The script is preceded by a token.The script's parent is group or a parameter.
- % The case where the script's parent is a group with id and the token is the first child, while
- % the script is the last one, is handled some rules later.
- \item{\verb+<g|p>[(i|n|o|s|c[ ])#]/<sp|sb>[^(g[@id][ ])#$]/cursor+}\\
- remove the script and replace the token with the cursor.
-
- % As above, but: we don't care who precedes the script (we do not have to remove it); the script's base
- % is still an empty group, but it has no id.
- % Ad above, we have to precise that the situation where the script is the only child of a group with id
- % is handled some rules later.
- \item{\verb+<g|p>/<sp|sb>[^(g[!@id][ ])#$]/curosr+}\\
- replace the script with the cursor.
-
- % The cursor is the last child of a script. The script's base is token.
- \item{\verb+<g|p>/<sp|sb>[^(i|n|o|s|c[ ])#$]/cursor+}\\
- repalce the script with the cursor.
-
+ remove the cursor (and eventually the sequence of \G{} nodes with attribute \texttt{id}) and append $\NLDGP$ to the \G{} node preceding the cursor.
- %*******************************************************************************************************
- %************** rules handling the case in which the cursor has a preceding node ***********************
- %*******************************************************************************************************
+ \item{\verb+<g|p>[<sp|sb>#]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ remove the cursor (and eventually the sequence of \G{} nodes with attribute \texttt{id}) and append the $\NLDSCRIPT$ to script node.
- %************************* the cursor's parent is a group or a parameter *******************************
-
- %we consider an empty macro as a token. An empty macro is either undefined or simply empty.
-
- %rule handling the case where the cursor has a preceding token and this is the first node of a group with id
- \item{\verb+g[@id][^(i||n||o||s||c[^$])#]/cursor+}\\
- remove the cursor and replace the \INODE{}, \NNODE{}, \ONODE{}, \SNODE{} or \CNODE{} node with the $\NLDROP$.
- \item{\verb+<g|p>[(i||n||o||s||c[^$])#]/cursor+}\\
- remove the \INODE{}, \NNODE{}, \ONODE{}, \SNODE{} or \CNODE{} node.
- %it corresponds to the drop_prev_group(false).
- \item{\verb+<g|p>[g#]/cursor+}\\
- remove the cursor and append the $\NLDROP$ to the \G{} node.
- %corresponds to the drop_prev_script(false).
- \item{\verb+<g|p>[(<sp|sb>)#]/cursor+}\\
- remove the cursor and append the $\NLDROP$ to the \SP{} or \SB{} node.
- %rules handling the right open macros preceding the cursor.
- \item{\verb+<g|p>[(c[^p[@right-open='1']$])#]/cursor+}\\
- remove the cursor and append the $\NLDROP$ to the \PNODE{} node.
- %we don't have a macro of this kind, but we don't know the future...
- \item{\verb+<g|p>[(c[^p[!(@right-open='1')][@left-open='1'][^$]$])#]/cursor+}\\
- remove the cursor and replace the \CNODE node with the $\NLDROP$.
- \item{\verb+<g|p>[(c[^p[!(@right-open='1')][@left-open='1']$])#]/cursor+}\\
- replace the \CNODE{} node with the content of the \PNODE node and replace the cursor with the $\NLDROP$.
- %rules handling macro with parameter(s) and preceding the cursor.
- \item{\verb+<g|p>[c#]/cursor+}\\
- remove the cursor and append the $\NLDROP$ to the \CNODE{} node.
- %rule handling table with rows preceding the cursor.
- \item{\verb+<g|p>[(table[row[cell[^g$]$]$])#]/cursor+}\\
- remove the cursor and append the $\NLDROP$ to the \G{} node, which is child of the \CELL{} node.
- %rule handling tables without rows preceding the cursor.
- \item{\verb+<g|p>[table#]/cursor+}\\
- remove the cursor and append the $\NLDROP$ to the \TABLE{} node
-
- %********************************* the cursor's parent is a script ******************************
-
- %rule handling the case where the script's base is an empty group with id.
- \item{\verb+<sp|sb>[^(g[@id][^$])#$]/cursor+}\\
- replace the \SP{} or \SB{} node with the $\NLDROP$.
- %rule handling the case where the script's base is an empty group without id
- \item{\verb+<sp|sb>[^(g[^$])#$]/cursor+}\\
- replace the \SP{} or \SB{} node with the cursor.
- %rule handling the case where the script's base is something else
- \item{\verb+<sp|sb>[^*#$]/cursor+}\\
- replace the \SP{} or \SB{} node with it's first child and insert the $\NLDROP$ after it.
-
- %********************************* the cursor's parent is a macro ********************************
-
- %rule handling the case where the preceding node is a parameter
- \item{\verb+c[p#]/cursor+}\\
- remove the cursor and append the $\NLDROP$ to the PNODE{} node.
- %rule handling the case where the preceding node is a delimiter
- \item{\verb+c[(<i|n|o|s|c>)#]/cursor+}\\
- remove the cursor and insert the $\NLDROP$ before the \INODE{}, \NNODE{}, \ONODE{}, \SNODE{} or \CNODE{} node.
+ \item{\verb+<g|p>[c[p[@right-open="1"]$]#]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ remove the cursor (and eventually the sequence of \G{} nodes with attribute \texttt{id}) and apeend the $\NLDGP$ to the \PNODE{} node.
- %*************************************************************************************************
- %*********** rules handling the case in which the cursor has no preceding nodes ******************
- %*************************************************************************************************
+ % we don't have this kind of macro
+ %\item{\verb+<g|p>[c[^p[@left-open="1"]$]#]/(g[@id][^#$]/++\verb+)?cursor+}\\
- %rule handling the case where the cursor has something else after it
- \item{\verb+<g|p>[#*]/cursor+}\\
- nothing to drop.
-
- %rules handling the case where the cursor's parent is a p node and the cursor has no nodes after it.
-
- %rule handling the case where the p node is a left and right open macro's child and the first p node has no elements.
- \item{\verb+c[^(p[@left-open='1'][^$])#$]/p[@right-open='1'][^#$]/cursor+}\\
- replace the \CNODE{} with the $\NLDROP$.
- %rule handling the case where the p node is a left and right open macro's child and the first p node has elements.
- \item{\verb+c[^(p[@left-open='1']#$]/p[@right-open='1'][^#$]/cursor+}\\
- replace the \CNODE{} with the content of the PNODE{} with attribute texttt{left-open='1'} and insert $\NLDROP$ after this.
- %rule handling the case where the p node is right open macro's child.
- \item{\verb+c[^#$]/p[@right-open='1'][^#$]/cursor+}\\
- replace the \CNODE{} with the $\NLDROP$.
- %rule handling the case where the p node is a macro's child and this macro has parameter.
- \item{\verb+c/p[^#$]/cursor+}\\
- remove the cursor and insert the $\NLDROP$ before the \PNODE{} node.
-
- %rule handling the case where the cursor has no nodes after it and its parent is a group with id
- \item{\verb+g[@id][^#$]/cursor+}\\
- replace the \G{} node with the $\NLDROP$.
+ \item{\verb+<g|p>[c[p[!@left-open="1"][!@right-open="1"](c[!*]|i|n|o|s)*$]#]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ remove the cursor (and eventually the sequence of \G{} nodes with attribute \texttt{id}) and append the $\NLDGP$ to the \PNODE{} node.
+
+ \item{\verb+*[sp[^*g[!@id][^o[@name="prime"]$]]#]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ replace (if present) the sequence of \G{} nodes with attribute \texttt{id} with the cursor and replace the \SP{} node with its first child.
+
+ \item{\verb+*[sp[^*g[!@id][^o[@name="prime"]++\verb+o[@name="prime"]$]]#]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ replace (if present) the sequence of \G{} nodes with attribute \texttt{id} with the cursor and remove the last \ONODE{}, which is \G{} node's child.
+
+ %************************************ cursor's parent is a script
+
+ \item{\verb+<g|p>/<sp|sb>[(i|n|o|s|c[!*])#$]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ remove replace the script with the cursor.
+
+ \item{\verb+g[@id]/<sp|sb>[(i|n|o|s|c[!*])#$]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ replace the script with the $\RGROUP$.
+
+ \item{\verb+<sp|sb>[g#$]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ repalce the script with it's first child (the \G{} node) and append the $\NLDGP$ to it.
+
+ \item{\verb+<sp|sb>[^c[p[@right-open="1"]$]#$]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ remove the cursor (and eventually the sequence of \G{} nodes with attribute \texttt{id}) and append the $\NLDGP$ to the \PNODE{} node.
+
+ % we don't have a macro of this kind
+ %\item{\verb+<sp|sb>[^c[^p[@left-open="1"]$]#$]/(g[@id][^#$]/++\verb+)?cursor+}\\
+
+ \item{\verb+<sp|sb>[^c[p[!@left-open="1"][!@right-open="1"](c[!*]|i|n|o|s)*$]#$]/(g[@id][^#$]/++\verb+)?cursor+}\\
+ replace the script with the \CNODE{} node and append the $\NLDGP$ to the \PNODE{} node.
\end{description}
\paragraph{Special Left Drop:} $\SLDROP$
-\begin{description}
+%\begin{description}
%*******************************************************************************************************
%************** rules handling the case in which the cursor has a preceding node ***********************
%*******************************************************************************************************
- %************************* the cursor's parent is a group or a parameter *******************************
-
- %this rule is more specific than the one below which handle the case of the cursor preceded by a c node
- \item{\verb+<g|p>[(i||n||o||s||c[^$])#]/cursor+}\\
- remove the \INODE{}, \NNODE{}, \ONODE{}, \SNODE{} or \CNODE{} node.
- %it corresponds to the drop_prev_group(true).
- \item{\verb+<g|p>[g#]/cursor+}\\
- remove the cursor and append the it to the \G{} node.
- %corresponds to the drop_prev_script(true).
- \item{\verb+<g|p>[(<sp|sb>)#]/cursor+}\\
- remove the cursor and append the $\SLDROP$ to the \SP{} or \SB{} node.
- %rules handling the right open macros preceding the cursor.
- \item{\verb+<g|p>[(c[^p[@right-open='1']$])#]/cursor+}\\
- remove the cursor and append the $\SLDROP$ to the \PNODE{} node.
- %we don't have a macro of this kind, but we don't know the future...
- \item{\verb+<g|p>[(c[^p[!(@right-open='1')][@left-open='1'][^$]$])#]/cursor+}\\
- remove the cursor and replace the \CNODE node with the cursor.
- \item{\verb+<g|p>[(c[^p[!(@right-open='1')][@left-open='1']$])#]/cursor+}\\
- replace the \CNODE{} node with the content of the \PNODE node.
- %rule handling macro with parameter(s) and preceding the cursor.
- \item{\verb+<g|p>[c#]/cursor+}\\
- remove the cursor and append the $\SLDROP$ to the \CNODE{} node.
- %rule handling table with rows preceding the cursor.
- \item{\verb+<g|p>[(table[row[cell[^g$]$]$])#]/cursor+}\\
- remove the cursor and append the it to the \G{} node, which is child of the \CELL{} node.
- %rule handling tables without rows preceding the cursor.
- \item{\verb+<g|p>[table#]/cursor+}\\
- remove the cursor and append the $\SLDROP$ to the \TABLE{} node
-
- %********************************* the cursor's parent is a script ******************************
-
- %rule handling the case where the script's base is an empty group with id.
- \item{\verb+<sp|sb>[^(g[@id][^$])#$]/cursor+}\\
- replace the \SP{} or \SB{} node with the \G{} node and insert the cursor after it.
- %rule handling the case where the script's base is an empty group without id
- \item{\verb+<sp|sb>[^(g[^$])#$]/cursor+}\\
- replace the \SP{} or \SB{} node with the cursor.
- %rule handling the case where the scrip's base is something else
- \item{\verb+<sp|sb>[^*#$]/cursor+}\\
- replace the \SP{} or \SB{} node with it's first child and insert the cursor after it.
-
- %********************************* the cursor's parent is a macro ********************************
-
- %rule handling the case where the preceding node is a parameter
- \item{\verb+c[p#]/cursor+}\\
- remove the cursor and append the $\SLDROP$ to the PNODE{} node.
- %rule handling the case where the preceding node is a delimiter
- \item{\verb+c[(<i|n|o|s|c>)#]/cursor+}\\
- remove the cursor and insert the it before the \INODE{}, \NNODE{}, \ONODE{}, \SNODE{} or \CNODE{} node.
-
%*************************************************************************************************
%*********** rules handling the case in which the cursor has no preceding nodes ******************
%*************************************************************************************************
- %rule handling the case where the cursor has something else after it
- \item{\verb+<g|p>[#*]/cursor+}\\
- nothing to drop.
-
- %rules handling the case where the cursor's parent is a p node and the cursor has no nodes after it.
-
- %rule handling the case where the p node is a left and right open macro's child and the first p node has no elements.
- \item{\verb+c[^(p[@left-open='1'][^$])#$]/p[@right-open='1'][^#$]/cursor+}\\
- replace the \CNODE{} with the cursor.
- %rule handling the case where the p node is a left and right open macro's child and the first p node has elements.
- \item{\verb+c[^(p[@left-open='1']#$]/p[@right-open='1'][^#$]/cursor+}\\
- replace the \CNODE{} with the content of the PNODE{} with attribute texttt{left-open='1'} and insert cursor after this.
- %rule handling the case where the p node is right open macro's child.
- \item{\verb+c[^#$]/p[@right-open='1'][^#$]/cursor+}\\
- replace the \CNODE{} with the cursor.
- %rule handling the case where the p node is a macro's child and this macro has parameter.
- \item{\verb+c/p[^#$]/cursor+}\\
- remove the cursor and insert the $\SLDROP$ before the \PNODE{} node.
-
- %rule handling the case where the cursor has no nodes after it and its parent is a group with id
- \item{\verb+g[@id][^#$]/cursor+}\\
- replace the \G{} node with the cursor.
-
-\end{description}
+%\end{description}
\section{Right Drop Rules}
replace the $\RGROUP$ with the cursor.
% maybe it's not the correct action
-
-
- %********************************************* \NLDROP has a preceding node *********************************************
-
- %rule handling the case where the preceding node is a token or an empty macro.
- \item{\verb+*[(i||n||o||s||c[^$])#]/+$\NLDROP$}\\
- remove the \INODE{}, \NNODE{}, \ONODE{}, \SNODE{} or the \CNODE{} node.
- %rule handling the case where the preceding node is a group
- \item{\verb+*[g#]/+$\NLDROP$}\\
- remove the $\NLDROP$ append it to the \G{} node.
- %rule handling the case where the preceding node is a script
- \item{\verb+*[<sp|sb>#]/+$\NLDROP$}\\
- remove the $\NLDROP$ append it to the \SP{} or \SB{} node.
- %rule handling the case where the preceding node is an open-right macro
- \item{\verb+*[(c[^p[@right-open='1']$])#]/+$\NLDROP$}\\
- remove the $\NLDROP$ and append it to the \PNODE{} node.
- %rule handling the case where the preceding node is a left-open macro (and not right-open), and the p node of this macro has no children
- \item{\verb+*[(c[^p[!(@right-open='1')][@left-open='1'][^$]$])#]/+$\NLDROP$}\\
- remove the \CNODE node.
- %rule handling the case where the preceding node is a left-open macro (and not right-open), and the p node of this macro has children
- \item{\verb+*[(c[^p[!(@right-open='1')][@left-open='1']$])#]/+$\NLDROP$}\\
- replace the \CNODE{} node with the content of the \PNODE{} node.
- %rule handling the case where the preceding node is a macro with parameter(s)
- \item{\verb+*[c#]/+$\NLDROP$}\\
- remove the $\NLDROP$ and append it to the \CNODE{} node.
-
- %rule handling the deletion of primes in superscript
-
- %there are more than one prime in the phantom group
- \item{\verb+sp[!(@id)][*#$]/g[!(@id)][o#]/+$\NLDROP$}\\
- remove the \ONODE node, remove the $\NLDROP$ and insert the cursor after the \SP{} node.
- %there is one and only one prime in the phantom group
- \item{\verb+sp[!(@id)][*#$]/g[!(@id)][^o#]/+$\NLDROP$}\\
- replace the \SP{} node with it's first child and insert the cursor after it
-
- %*** rules handling the case where the \NLDROP's parent is a macro (with parameter) ***
-
- %the node preceding the \NLDROP is a delimiter
- \item{\verb+c[(<i|n|o|s|c>)#]/+$\NLDROP$}\\
- remove the $\NLDROP$ and insert it before the \INODE{}, \NNODE{}, \ONODE{}, \SNODE{} or \CNODE{} node.
- %the node preceding the \NLDROP is parameter
- \item{\verb+c[p#]/+$\NLDROP$}\\
- remove the $\NLDROP$ and append it to the \PNODE{} node.
-
- %********************************************* the \NLDROP has no preceding nodes ****************************************************
-
- %if the \NLDROP has no preceding nodes, but has following nodes...
- \item{\verb+<g|p>[#*]/+$\NLDROP$}\\
- replace the $\NLDROP$ with the cursor.
- %rule handling the case where the $\NLDROP$ is the only child of a group with id.
- \item{\verb+g[@id][^#$]/+$\NLDROP$}\\
- replace the \G{} node with the $\NLDROP$.
- %\NLDROP is the first child of a macro with no inserted parameter
- \item{\verb+c[!(p[*])][^#]/+$\NLDROP$}\\
- replace the \CNODE{} with the $\NLDROP$.
- %\NLDROP is the first child of a macro with some inserted parameter
- \item{\verb+c[p[*]][^#]/+$\NLDROP$}\\
- put the cursor in the first \PNODE{} node.
-
-
- %**** rule handling the case where the \NLDROP has a preceding token or a preceding empty macro, which is either undefined or empty ****
-
- %%the \NLDROP's parent is neither a macro nor a phantom group which in turn is a sp's child and the token is a prime
- %\item{\verb+*[(i||n||o||s||c[^$])#]/+$\NLDROP$}\\
- %replace the \INODE{}, \NNODE{}, \SNODE{}, \ONODE{}, \SNODE{} or \CNODE{} node with the cursor and remove the $\NLDROP$.
- %%the \NLDROP's parent is a macro with argument
- %\item{\verb+c[((!(p[@left-open='1']))&(!(p[@right-open+'1'])))][(i||n||o||s||c[^$])#]/+$\NLDROP$}\\
- %remove the $\NLDROP$ and insert it before the \INODE{}, \NNODE{}, \ONODE{}, \SNODE{} or \CNODE{} node.
- %%rule handling the case where the \NLDROP's parent is a phantom group, which in turn is a sp's child
- %\item{\verb+sp[!(@id)][^*#$]/g[!(@id)][o#$]/+$\NLDROP$}\\
- %remove the \ONODE{} node
-
- %********************************* rules handling the case where the \NLDROP has a preceding group **************************************
- \item{\verb+*[g#]/+$\NLDROP$}\\
- remove the $\NLDROP$ and append it to the \G{} node.
-
\end{description}
\paragraph{Special Left Drop}
-\begin{description}
-
- \item{special left}\\
+%\begin{description}
-\end{description}
+%\end{description}
\paragraph{Advance}
projects / helm.git / commitdiff