Convert tabular version 2 -> version 3

[lyx.git] / lib / lyx2lyx / parser_tools.py

diff --git a/lib/lyx2lyx/parser_tools.py b/lib/lyx2lyx/parser_tools.py
index 62455364da2929786f0326a12276bad6bb67aafa..8d9c45e35ce45001e06606fd25f9b64bd6e71e74 100644 (file)
--- a/lib/lyx2lyx/parser_tools.py
+++ b/lib/lyx2lyx/parser_tools.py
@@ -33,6 +33,15 @@ def find_token(lines, token, start, end = 0):
            return i
     return -1
 
+def find_token2(lines, token, start, end = 0):
+    if end == 0:
+       end = len(lines)
+    for i in xrange(start, end):
+       x = string.split(lines[i])
+       if len(x) > 0 and x[0] == token:
+           return i
+    return -1
+
 def find_tokens(lines, tokens, start, end = 0):
     if end == 0:
        end = len(lines)
@@ -59,12 +68,95 @@ def find_token_backwards(lines, token, start):
            return i
     return -1
 
+def find_tokens_backwards(lines, tokens, start):
+    for i in xrange(start, -1, -1):
+       line = lines[i]
+       for token in tokens:
+           if line[:len(token)] == token:
+               return i
+    return -1
+
 def get_value(lines, token, start, end = 0):
-    i = find_token(lines, token, start, end)
+    i = find_token2(lines, token, start, end)
     if i == -1:
        return ""
     return string.split(lines[i])[1]
-    
+
+def del_token(lines, token, i, j):
+    k = find_token2(lines, token, i, j)
+    if k == -1:
+       return j
+    else:
+       del lines[k]
+       return j-1
+
+# Finds the paragraph that contains line i.
+def get_paragraph(lines, i):
+    while 1:
+       i = find_tokens_backwards(lines, ["\\end_inset", "\\layout"], i)
+       if check_token(lines[i], "\\layout"):
+           return i
+       i = find_beginning_of_inset(lines, i)
+
+# Finds the paragraph after the paragraph that contains line i.
+def get_next_paragraph(lines, i):
+    while 1:
+       i = find_tokens(lines, ["\\begin_inset", "\\layout"], i)
+       if check_token(lines[i], "\\layout"):
+           return i
+       i = find_end_of_inset(lines, i)
+
+# Finds the matching \end_inset
+def find_end_of_inset(lines, i):
+    count = 1
+    while 1:
+       i = find_tokens(lines, ["\\end_inset", "\\begin_inset"], i+1)
+       if check_token(lines[i], "\\begin_inset"):
+           count = count+1
+       else:
+           count = count-1
+       if count == 0:
+           return i
+
+# Finds the matching \end_inset
+def find_beginning_of_inset(lines, i):
+    count = 1
+    while 1:
+       i = find_tokens_backwards(lines, ["\\end_inset", "\\begin_inset"], i-1)
+       if check_token(lines[i], "\\end_inset"):
+           count = count+1
+       else:
+           count = count-1
+       if count == 0:
+           return i
+
+def is_nonempty_line(line):
+    return line != " "*len(line)
+
+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
+
+def set_comment(lines, number):
+    x = int(number)
+    if x < 216:
+       # It is not worth the trouble to handle this case
+       return
+    elif x < 220:
+       version = "1.1"
+    else:
+       version = str((x-220)/10.0+1.2)
+
+    lines[0] = "#LyX %s created this file. For more info see http://www.lyx.org/" % version
+    if lines[1][0] == '#':
+       del lines[1]
+
 def set_format(lines, number):
+    if int(number) <= 217:
+       number = float(number)/100
     i = find_token(lines, "\\lyxformat", 0)
     lines[i] = "\\lyxformat %s" % number