--- /dev/null
+
+identifier #
+
+ insert(<mi>#</mi>)
+
+number #
+
+ insert(<mi>#</mi>)
+
+\sqrt
+
+ replace($, <msqrt>$</msqrt>)
+
+\root
+
+ replace($, <mroot><mrow/><mrow>$</mrow></mroot>)
+
+\of
+
+ when (isa($.parent, "mrow") && isa($.parent.parent, "mroot"))
+ let mroot = $.parent.parent
+ if ($.prev and !$.prev.prev and !$.next) replace($.parent, $.prev)
+ replace(mroot.child[0], $)
+
+\underline
+
+ insert(<munder>[$, <mo>_</mo>]</munder>)
+
+\overline
+
+ insert(<mover>[$, <mo>‾</mo>]</mover>)
+
+\cases
+
+ replace($, <mrow><mo>{</mo><mtable>$</mtable></mrow>)
+
+\matrix
+
+ replace($, <mtable>$</mtable>)
+
+\over
+
+ if isa($.parent, "mrow")
+ replace($.parent, <mfrac>[$.parent, $]</mfrac>)
+
+
+_ if isa($.parent, "mrow")
+ if eq($.prev, null)
+ replace($, new(mmultiscripts, [ new mrow, $, new none ]))
+ elseif (isa($.prev, msub))
+ let base = $.prev.children[0]
+ let script = $.prev.children[1]
+ replace($.rev, new(mmultiscripts, [ base, script, new none, $, new none ]))
+ elseif (isa($.prev, msup))
+ let base = $.prev.children[0]
+ let script = $.prev.children[1]
+ replace($.prev, new(msubsup, [ base, $, script ]))
+ elseif (isa($.prev, msubsup))
+ let base = $.prev.children[0]
+ let subscript = $.prev.children[1]
+ let superscript = $.prev.children[2]
+ replace($.prev, new(mmultiscripts, [ base, subscript, superscript, $, new none ]))
+ elseif isa($.prev, mmultiscripts)
+ if ($.prev.children[$.prev.children.size - 2] = null)
+ replace($.prev.children[$.prev.children.size - 2], $)
+ else
+ $.prev.children.append([$, new none])
+ else
+ replace($.prev, new(msub, [ $.prev, $ ]))
+ else if isa($.parent, msub) and $.parent.children[1] = $
+ let base = $.parent.children[0]
+ replace($.parent, new(munder, [ base, $ ]))
+
+
+_, \sb (subscript)
+
+ if parent.isa(mrow)
+ if cursor is first child then
+ sub = new mmultiscripts
+ parent.replace(cursor, sub);
+ sub.set_base(new mrow);
+ sub.set_subscript(cursor);
+ else
+ elem = element prior to cursor in parent
+ if elem.isa(msub) || elem.isa(msup) || elem.isa(mmultiscripts) then
+ append script to multiscript and/or replace single script with
+ multiscript
+ else if elem.isa(munder) || elem.isa(mover) || elem.isa(munderover) then
+ creates another munder
+ else
+ parent.replace(elem, sub);
+ sub.set_base(elem);
+ sub.set_subscript(cursor);
+ else if (parent.isa(msub) and cursor is subscript) or
+ change msub into a munder
+ cursor in same position
+ else
+ replace cursor with msub with empty base
+
+^, \sp (superscript)
+
+ symmetric to subscript
+
+', \prime (prime)
+
+ similar to superscript, but multiple prime superscripts should go
+ together in the same operator
+
+{ (group open)
+
+ replace cursor with mrow, put cursor inside mrow
+ if cursor is inside a table, create a new table row and a new table cell
+ and put the cursor inside the cell
+
+} (group close)
+
+ remove cursor from mrow
+ mrow.parent.advance(cursor, mrow)
+ if cursor inside a table cell then close table
+
+\over,\atop,\above (fraction)
+
+ if cursor.parent.isa(mrow) then
+ frac = new mfrac
+ cursor.parent.parent.replace(mrow, frac)
+ numerator is current content of cursor.parent except for the cursor
+ itself.
+ set denominator to cursor
+ else
+
+\choose
+
+ similar to fractions, but with stretchable parentheses around
+
+\sqrt
+
+ parent.replace(cursor, new msqrt)
+ set new msqrt.base to cursor
+
+\root
+
+ parent.replace(cursor, new mroot)
+ set empty base element
+ set root index to cursor
+
+\of
+
+ check if cursor.parent is mroot (or mrow inside mroot index)
+ or and cursor is in index position. move the cursor to the base element
+
+\underline
+
+ create munder element with stretchable horizontal line as underscript
+ substitute cursor with munder
+ move the cursor in the base element
+
+\overline
+
+ symmetric
+
+accents (\hat)
+
+ create an mover with accent=true and the operator has stretchy=false
+
+wide accents (\widehat)
+
+ as accents, but mover has accent=false and the operator has stretchy=true
+
+\scriptstyle, ...
+
+ create an appropriate mstyle, the cursor moves in. However, when the
+ subformula ends one has to skip the mstyle
+
+\cases
+
+ create mrow with stretchable brace and emtpy table, put cursor inside
+ table
+
+\matrix
+
+ create empty table, cursor inside table
+
+&
+
+ check that cursor is inside a table cell
+ create a new cell next to it
+
+\cr
+
+ check that cursor is inside a table cell inside a table row
+ create a new row
+
+\phantom
+
+ create a mphantom element, cursor inside
+
projects / helm.git / blobdiff