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2023 Jul 21
1
tools::parseLatex() crashes on "\\verb{}"
...9;r');
> TEXT_PUSH('b');
> TEXT_PUSH(c);
> - while ((c = xxgetc()) != delim) TEXT_PUSH(c);
> - TEXT_PUSH(c);
> + while (((c = xxgetc()) != delim) && c != R_EOF) TEXT_PUSH(c);
> + if (c != R_EOF) TEXT_PUSH(c);
>
> PRESERVE_SV(yylval = mkString2(stext, bp - stext));
> if(stext != st0) free(stext);
>
> This seems to have been the only remaining while loop in gramLatex.y
> that didn't check for R_EOF.
>
> More correctness work is needed: mkMarkup() should avoid calling
> mkVerb(R_EOF) when running tools::parseLa...