Skip whitespace at the beginning of eqn(7) nodes,

in particular ~ and ^ that misrendered;
found by bentley@ in glCopyTexSubImage1D(3); also affected
glAccum(3), glClipPlane(3), glDrawPixels(3), glEvalMesh(3), and others.

1 files changed, 1 insertions, 1 deletions

diff --git a/eqn.c b/eqn.c
index d1e2bf7b..c6bd121a 100644
--- a/eqn.c
+++ b/eqn.c
@@ -683,7 +683,7 @@ eqn_parse(struct eqn_node *ep, struct eqn_box *parent)
 	if (ep->data == NULL)
 		return ROFF_IGN;
 
-	ep->start = ep->end = ep->data;
+	ep->start = ep->end = ep->data + strspn(ep->data, " ^~");
 
 next_tok:
 	tok = eqn_next(ep, MODE_TOK);