Hi,
Here's a small problem with luatex from trunk (notice the missing 'hello' in the
first line):
! \csname\endcsname.
l.2 \errmessage{hello \csname\endcsname}
More generally, print_cs() screws things up when printing null_cs while selector
is new_string, by indirectly calling make_string(). I think the attached patch
solves the problem.
Manuel.
PS: Btw, I wonder about two points in tokenlist_to_cstring()
- why did you comment out printing of \csname\endcsname?
- why is there two times Print_uchar(e) in the definition of Print_esc?
diff --git a/source/texk/web2c/luatexdir/tex/printing.c b/source/texk/web2c/luatexdir/tex/printing.c
index 641f52e..43d6b29 100644
--- a/source/texk/web2c/luatexdir/tex/printing.c
+++ b/source/texk/web2c/luatexdir/tex/printing.c
@@ -574,7 +574,7 @@ they may be unprintable.
void print_cs(integer p)
{ /* prints a purported control sequence */
- str_number t = zget_cs_text(p);
+ str_number t;
if (p < hash_base) { /* nullcs */
if (p == null_cs) {
tprint_esc("csname");
@@ -585,9 +585,10 @@ void print_cs(integer p)
} else if ((p >= undefined_control_sequence) &&
((p <= eqtb_size) || p > eqtb_size + hash_extra)) {
tprint_esc("IMPOSSIBLE.");
- } else if (t >= str_ptr) {
+ } else if (text(p) >= str_ptr) {
tprint_esc("NONEXISTENT.");
} else {
+ t = zget_cs_text(p);
if (is_active_cs(t)) {
print(active_cs_value(t));
} else {
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