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LaTeXFeatures.cpp: fix bug #9266

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mhchem loads amsmath and needs therefore be loaded after it but before packages that redefine commands of amsmath. We already take care of esint but not of wasysym
This commit is contained in:
Uwe Stöhr 2014-09-10 22:01:29 +02:00
parent efb8584ba1
commit 96ca121fc9
1 changed files with 16 additions and 15 deletions
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31
src/LaTeXFeatures.cpp
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@ -893,19 +893,7 @@ string const LaTeXFeatures::getPackages() const
if (mustProvide("cancel") &&
params_.use_package("cancel") != BufferParams::package_off)
packages << "\\usepackage{cancel}\n";
// wasysym is a simple feature, but it must be after amsmath if both
// are used
// wasysym redefines some integrals (e.g. iint) from amsmath. That
// leads to inconsistent integrals. We only load this package if
// the document does not contain integrals (then isRequired("esint")
// is false) or if esint is used, since esint redefines all relevant
// integral symbols from wasysym and amsmath.
// See http://www.lyx.org/trac/ticket/1942
if (mustProvide("wasysym") &&
params_.use_package("wasysym") != BufferParams::package_off &&
(params_.use_package("esint") != BufferParams::package_off || !isRequired("esint")))
packages << "\\usepackage{wasysym}\n";
// accents must be loaded after amsmath
if (mustProvide("accents") &&
params_.use_package("accents") != BufferParams::package_off)
@ -963,14 +951,27 @@ string const LaTeXFeatures::getPackages() const
if (mustProvide("setspace") && !isProvided("SetSpace"))
packages << "\\usepackage{setspace}\n";
// we need to assure that mhchem is loaded before esint
// because esint must be loaded AFTER amslatex and mhchem loads amlatex
// we need to assure that mhchem is loaded before esint and every other
// package that redefines command of amsmath because mhchem loads amlatex
// (this info is from the author of mhchem from June 2013)
if (mustProvide("mhchem") &&
params_.use_package("mhchem") != BufferParams::package_off)
packages << "\\PassOptionsToPackage{version=3}{mhchem}\n"
"\\usepackage{mhchem}\n";
// wasysym is a simple feature, but it must be after amsmath if both
// are used
// wasysym redefines some integrals (e.g. iint) from amsmath. That
// leads to inconsistent integrals. We only load this package if
// the document does not contain integrals (then isRequired("esint")
// is false) or if esint is used, since esint redefines all relevant
// integral symbols from wasysym and amsmath.
// See http://www.lyx.org/trac/ticket/1942
if (mustProvide("wasysym") &&
params_.use_package("wasysym") != BufferParams::package_off &&
(params_.use_package("esint") != BufferParams::package_off || !isRequired("esint")))
packages << "\\usepackage{wasysym}\n";
// esint must be after amsmath (and packages requiring amsmath, like mhchem)
// and wasysym, since it will redeclare inconsistent integral symbols
if (mustProvide("esint") &&