These settings are also consulted for “pair movement”, i.e. ⌃↓/⌃↑ and ⇧⌘B, so by using regular expressions we can match begin/end tags and navigate between these.
The algorithm now handle overlapping character ranges like: ‘(f{o)o}’ and unpaired characters surrounded by character pairs.
This is for selecting (⇧⌘B) and moving to the begin or end of the range (⌃↓/⌃↑).
The methods going to “begin of indented line” will go to the first non-whitespace character on the line, unless the caret is already there or to the left of this character, in which case it will go to the actual beginning of the line.
The “end of indented line” methods work similarly.
If you want [⇪]⌘⇠/⇢ and ⌘⌫/⌦ to use this behavior, you can add the following to your key bindings file:
"@\UF702" = "moveToBeginningOfIndentedLine:";
"$@\UF702" = "moveToBeginningOfIndentedLineAndModifySelection:";
"@\UF703" = "moveToEndOfIndentedLine:";
"$@\UF703" = "moveToEndOfIndentedLineAndModifySelection:";
"@\U007F" = "deleteToBeginningOfIndentedLine:";
"@\UF728" = "deleteToEndOfIndentedLine:";
This will find (forwards or backwards) but preserve the existing selection.
Presently if the current selection is a zero-width selection (i.e. caret) then we still preserve it. This might not be desired, but one could imagine “extend selection” used with a regular expression which use a look-around assertion (resulting in zero-width matches).
