I recently updated a mom file that uses \*[COND] in the string passed to HEADING and noticed that the PDF outline has started prepending u] (i.e. the letter u and a square bracket) to the outline entries. Unsurprisingly, \*[EXT] is also affected. Process this little example with pdfmom to see what I mean:
.TITLE "PDF Outline Test .PRINTSTYLE TYPESET .CONDENSE 80 .EXTEND 120 .START .HEADING 1 "\*[COND]Condensed heading\*[CONDX]" .PP Normal text. .br \*[COND]Condensed text.\*[CONDX] .HEADING 1 "\*[EXT]Extended heading\*[EXTX]" .PP Normal text. .br \*[EXT]Extended text.\*[EXTX] I can't say when this started happening because I haven't updated the file in question in a very long time and it's the only one I have where \*[COND] is part of the HEADING string. Previous PDF versions of the file do not exhibit the behaviour. The issue appears to stem from (recent?) changes to pdf.tmac's pdfbookmark definition. The pdfbookmark macro is called in HEADING via om.tmac's PDF_BOOKMARK macro. The CONDENSE macro in om.tmac defines a long string (COND) that creates several registers inline and uses them to establish the width-to-height ratio of subsequent text. .ds COND \ \R'#PT_SIZE_IN_UNITS \En[.ps]'\ \R'#CONDENSE 1'\ \R'#COND_WIDTH (\En[#PT_SIZE_IN_UNITS]*\E*[$COND_PERCENT])/100'\ \s[\En[#COND_WIDTH]u]\H'\En[#PT_SIZE_IN_UNITS]u' ^^ The extraneous u] seems to result from the scaling unit and closing delimiter of the \s inline being interpreted as literal text when the text of a heading with \*[COND] is passed to pdfbookmark. -- Peter Schaffter https://www.schaffter.ca