def revert_diagram(document):
" Add the feyn package if \\Diagram is used in math "
i = 0
- re_diagram = re.compile(r'\\begin_inset Formula .*\\Diagram', re.DOTALL)
while True:
i = find_token(document.body, '\\begin_inset Formula', i)
if i == -1:
if j == -1:
document.warning("Malformed LyX document: Can't find end of Formula inset.")
return
- m = re_diagram.search("\n".join(document.body[i:j]))
- if not m:
- i += 1
+ lines = "\n".join(document.body[i:j])
+ if lines.find("\\Diagram") == -1:
+ i = j
continue
- add_to_preamble(document, ["% this command was inserted by lyx2lyx"])
- add_to_preamble(document, "\\usepackage{feyn}")
+ add_to_preamble(document, ["% lyx2lyx feyn package insertion ", "\\usepackage{feyn}"])
# only need to do it once!
return