glossaries.sty: LaTeX2e Package to Assist Generating ... - CTAN

\glsdoifnoexists \glsdoifnoexists{〈label〉}{〈code〉}
The opposite: only do second argument if the entry doesn’t exists. Generate
an error message if it exists.
976 \newcommand{\glsdoifnoexists}[2]{%
977 \ifglsentryexists{#1}{%
978 \PackageError{glossaries}{Glossary entry ‘#1’ has already
979 been defined}{}}{#2}%
980 }
\ifglshaschildren \ifglshaschildren{〈label〉}{〈true part〉}{〈false part〉}
981 \newcommand{\ifglshaschildren}[3]{%
982 \glsdoifexists{#1}%
983 {%
984 \def\do@glshaschildren{#3}%
985 \expandafter\forglsentries\expandafter[\csname glo@#1@type\endcsname]
986 {\glo@label}%
987 {%
988 \letcs\glo@parent{glo@\glo@label @parent}%
989 \ifthenelse{\equal{#1}{\glo@parent}}%
990 {%
991 \def\do@glshaschildren{#2}%
992 \@endfortrue
993 }%
994 {}%
995 }%
996 \do@glshaschildren
997 }%
998 }
\ifglshasparent \ifglshaschildren{〈label〉}{〈true part〉}{〈false part〉}
\@glo@types
999 \newcommand{\ifglshasparent}[3]{%
1000 \glsdoifexists{#1}%
1001 {%
1002 \ifcsempty{glo@#1@parent}{#3}{#2}%
1003 }%
1004 }
1.6 Defining new glossaries
A comma-separated list of glossary names is stored in \@glo@types. When
a new glossary type is created, its identifying name is added to this list. This is
used by commands that iterate through all glossaries (such as \makeglossaries
and \printglossaries).
1005 \newcommand*{\@glo@types}{,}
A new glossary type is defined using \newglossary. Syntax:
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