Handle ^^Ms inside formatted "lines"
#46
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When `listings`-`fancyverb` interface is switched on `\FancyVerbFormatLine` command set by `listings` can't handle carriage return (`^^M`) characters passed to it. Although it's intended to format individual lines, when `commandchars` are set, commands with arguments containing newlines are passed to `\FancyVerbFormatLine` as single "lines". This leads to infinite compilation. As a workaround all `^^M`s are replaced by `\empty`s before tokens are passed to formatting command.
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When
listings-fancyverbinterface is switched on\FancyVerbFormatLinecommand set bylistingscan't handle carriage return (^^M) characters passed to it. Although it's intended to format individual lines, whencommandcharsare set, commands with arguments containing newlines are passed to\FancyVerbFormatLineas single "lines". This leads to infinite compilation.As a workaround all
^^Ms are replaced by\emptys before tokens are passed to formatting command.Fixes newline issue from #20#issuecomment-212977239.