Sorry to be sending this out late. Composed in Friday, just as my internet connection was about to go down big time. Finally up&running today, Tuesday.]
On 28-Sep-2012 21:21:05 Dave Kemper wrote: > Hi, > > I'm having trouble understanding why the values of \n[rst] and \n[rsb], > when used inside a string after a \w, are different depending on where > the string is called from. > > In the first case below, I call the string \*[direct] directly, and the > values are as expected. > > In the second case, I wrap the call to the string inside macro .indirect, > and the values are 0, although the width is reported correctly. > > If I add another call to \*[direct] at the bottom of the file, below > the call to .indirect, this call again displays the correct values for > \n[rst] and \n[rsb]. > > Thanks for any advice. .ds direct \ Howdy: \w'Howdy', rst = \\n[rst], rsb = \\n[rsb] . .de indirect \*[direct] .. . \*[direct] .br . .indirect Ths point is that your definition of .indirect, because it uses "\*[direct]", evaluates \*[direct] as it finds it at the time of reading the definition of .indirect. Since \*[direct] has not yet been issued as a command (at that stage it is merely a definition), \n[rst] and \n[rsb] might be anything. When you want to call .indirect, it is the results of this first evaluation which will be in the definition of .indirect. If you re-write .indirect as: .de indirect \\*[direct] .. you should find that it does the right thing, since now, when called, .indirect re-reads \*[direct] and evaluates \n[rst] and \n[rsb] at their ambient values. Hoping this helps, Ted. ------------------------------------------------- E-Mail: (Ted Harding) <ted.hard...@wlandres.net> Date: 28-Sep-2012 Time: 22:52:59 This message was sent by XFMail -------------------------------------------------
