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Fix reversion of mathtools xarrows (bug #9620).

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This commit is contained in:
Juergen Spitzmueller 2015-06-14 10:47:31 +02:00
parent a7a43d0866
commit aa4d41d282
1 changed files with 14 additions and 8 deletions
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22
lib/lyx2lyx/lyx_2_2.py
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@ -292,17 +292,20 @@ def revert_swissgerman(document):
j = j + 1
def revert_use_package(document, pkg, commands, oldauto):
def revert_use_package(document, pkg, commands, oldauto, supported):
# oldauto defines how the version we are reverting to behaves:
# if it is true, the old version uses the package automatically.
# if it is false, the old version never uses the package.
# If "supported" is true, the target version also supports this
# package natively.
regexp = re.compile(r'(\\use_package\s+%s)' % pkg)
i = find_re(document.header, regexp, 0)
p = find_re(document.header, regexp, 0)
value = "1" # default is auto
if i != -1:
value = get_value(document.header, "\\use_package" , i).split()[1]
del document.header[i]
if value == "2": # on
if p != -1:
value = get_value(document.header, "\\use_package" , p).split()[1]
if not supported:
del document.header[p]
if value == "2" and not supported: # on
add_to_preamble(document, ["\\usepackage{" + pkg + "}"])
elif value == "1" and not oldauto: # auto
i = 0
@ -318,7 +321,10 @@ def revert_use_package(document, pkg, commands, oldauto):
code = "\n".join(document.body[i:j])
for c in commands:
if code.find("\\%s" % c) != -1:
add_to_preamble(document, ["\\usepackage{" + pkg + "}"])
if supported:
document.header[p] = "\\use_package " + pkg + " 2"
else:
add_to_preamble(document, ["\\usepackage{" + pkg + "}"])
return
i = j
@ -331,7 +337,7 @@ mathtools_commands = ["xhookrightarrow", "xhookleftarrow", "xRightarrow", \
def revert_xarrow(document):
"remove use_package mathtools"
revert_use_package(document, "mathtools", mathtools_commands, False)
revert_use_package(document, "mathtools", mathtools_commands, False, True)
def revert_beamer_lemma(document):