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Fix conversion of 1.5.x documents that conflict with mchchem

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@36437 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Georg Baum 2010-11-22 21:07:20 +00:00
parent c7a3864b13
commit f3ad535dbd
1 changed files with 26 additions and 2 deletions
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26
lib/lyx2lyx/lyx_2_0.py
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@ -816,6 +816,28 @@ def revert_suppress_date(document):
del document.header[i]
def convert_mhchem(document):
"Set mhchem to off for versions older than 1.6.x"
if document.start < 277:
# LyX 1.5.x and older did never load mhchem.
# Therefore we must switch it off: Documents that use mhchem have
# a manual \usepackage anyway, and documents not using mhchem but
# custom macros with the same names as mhchem commands might get
# corrupted if mhchem is automatically loaded.
mhchem = 0 # off
else:
# LyX 1.6.x did always load mhchem automatically.
mhchem = 1 # auto
i = find_token(document.header, "\\use_esint", 0)
if i == -1:
# pre-1.5.x document
i = find_token(document.header, "\\use_amsmath", 0)
if i == -1:
document.warning("Malformed LyX document: Could not find amsmath os esint setting.")
return
document.header.insert(i + 1, "\\use_mhchem %d" % mhchem)
def revert_mhchem(document):
"Revert mhchem loading to preamble code"
@ -1805,6 +1827,8 @@ def revert_flexnames(document):
def convert_mathdots(document):
" Load mathdots automatically "
i = find_token(document.header, "\\use_mhchem" , 0)
if i == -1:
i = find_token(document.header, "\\use_esint" , 0)
if i != -1:
document.header.insert(i + 1, "\\use_mathdots 1")
@ -2367,7 +2391,7 @@ convert = [[346, []],
[368, []],
[369, [convert_author_id]],
[370, []],
[371, []],
[371, [convert_mhchem]],
[372, []],
[373, [merge_gbrief]],
[374, []],