NAME

       "LaTeXML::Common::Locator" - represents a reference to a point or range in the source
       file.

DESCRIPTION

       "LaTeXML::Common::Locator" contains a reference to a point or range within a source file.
       This data structure is intended to be used both programtically (for "source references")
       and to display error messages to the user.

       It extends LaTeXML::Common::Object.

   Locator Creation
       "$locator = LaTeXML::Common::Locator->new($source, $fromLine, $fromCol, $toLine, $toCol);"
           Creates a new locator. $source should be a string containing the full path of the
           source file, an empty string in case of a literal string, or undef in case of an
           anonymous string. $fromLine and $fromCol should be integers containing the line and
           column numbers of the start of the range in the source file, or undef if unknown.
           $toLine and $toCol should be the integers containing the line and column numbers of
           the end of the range, or undef if a point is being refered to.

       "$locator = LaTeXML::Common::Locator->newRange($from, $to);"
           Creates a new locator, starting at the locator $from and ending at the locator $to.
           Either locator may be undef, in which case the other one is returned.

   Methods
       "$str = $locator->toString;"
           Turns this locator into a short string for output in user messages.

       "$str = $locator->stringify;"
           Turns this locator into a long string, including the full filename of the input.

       "$attr = $locator->toAttribute;"
           Turns this locator into an XPointer expression, for usage within an XML attribute.

       "$isRange = $locator->isRange;"
           Checks if this locator points to a range or a point.

       "$source = $locator->getShortSource($stringSource);"
           Gets a short string refering to the source of this locator.  $stringSource will be
           used if the source refers to an anonymous or literal string input.

       "$from = $locator->getFromLocator;"
           Gets a locator pointing to the first point in the range of this locator.  Works for
           both point and range locators.

       "$from = $locator->getToLocator;"
           Gets a locator pointing to the last point in the range of this locator.  Does not work
           for point locators.

AUTHOR

       Bruce Miller <bruce.miller@nist.gov> Tom Wiesing <tom.wiesing@gmail.com>

COPYRIGHT

       Public domain software, produced as part of work done by the United States Government &
       not subject to copyright in the US.