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42 lines
1.2 KiB
42 lines
1.2 KiB
7 years ago
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Encoding special chars
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The LaTeX Info pages lists under "2.18 Special Characters"
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The following characters play a special role in LaTeX and are called
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"special printing characters", or simply "special characters".
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# $ % & ~ _ ^ \\ { }
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The special chars verbatim::
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# $ % & ~ _ ^ \ { }
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However also *square brackets* [] need special care.
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Commands with optional arguments (e.g. ``\item``) check
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if the token right after the macro name is an opening bracket.
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In that case the contents between that bracket and the following
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closing bracket on the same grouping level are taken as the
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optional argument. What makes this unintuitive is the fact that
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the square brackets aren't grouping characters themselves, so in
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your last example \item[[...]] the optional argument consists of
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[... (without the closing bracket).
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Compare the items in the following lists:
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* simple item
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* [bracketed] item
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simple
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description term
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[bracketed]
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description term
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The OT1 font-encoding has different characters for the less-than,
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greater-than and bar, < | >, except for typewriter font `cmtt`::
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< | >
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