- return ""
- return string.split(lines[i])[1]
-
-def set_format(lines, number):
- i = find_token(lines, "\\lyxformat", 0)
- lines[i] = "\\lyxformat %s" % number
+ return ""
+ if len(lines[i].split()) > 1:
+ return lines[i].split()[1]
+ else:
+ return default
+
+
+def del_token(lines, token, start, end):
+ """ del_token(lines, token, start, end) -> int
+
+ Find the lower line in lines where token is the first element and
+ delete that line.
+
+ Returns the number of lines remaining."""
+
+ k = find_token_exact(lines, token, start, end)
+ if k == -1:
+ return end
+ else:
+ del lines[k]
+ return end - 1
+
+
+def find_beginning_of(lines, i, start_token, end_token):
+ count = 1
+ while i > 0:
+ i = find_tokens_backwards(lines, [start_token, end_token], i-1)
+ if i == -1:
+ return -1
+ if check_token(lines[i], end_token):
+ count = count+1
+ else:
+ count = count-1
+ if count == 0:
+ return i
+ return -1
+
+
+def find_end_of(lines, i, start_token, end_token):
+ count = 1
+ n = len(lines)
+ while i < n:
+ i = find_tokens(lines, [end_token, start_token], i+1)
+ if i == -1:
+ return -1
+ if check_token(lines[i], start_token):
+ count = count+1
+ else:
+ count = count-1
+ if count == 0:
+ return i
+ return -1
+
+
+def find_nonempty_line(lines, start, end = 0):
+ if end == 0:
+ end = len(lines)
+ for i in xrange(start, end):
+ if is_nonempty_line(lines[i]):
+ return i
+ return -1