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Arguments that are opened with more than one square brackets [ or curly braces { are literal arguments.
In literal arguments, OurBigBook is not parsed, and the entire argument is considered as text until a corresponding close with the same number of characters.
Therefore, you cannot have nested content, but it makes it extremely convenient to write code blocks or mathematics.
For example, a multiline code block with double open and double close square brackets inside can be enclosed in triple square brackets:
A literal argument looks like this in OurBigBook:

\C[[
\C[
A multiline

code block.
]
]]

And another paragraph.
which renders as:
A literal argument looks like this in OurBigBook:
\C[
A multiline

code block.
]
And another paragraph.
The same works for inline code:
The program \c[[puts("]");]] is very complex.
which renders as:
The program puts("]"); is very complex.
Within literal blocks, only one thing can be escaped with backslashes are:
  • leading open square bracket [
  • trailing close square bracket ]
The rule is that:
  • if the first character of a literal argument is a sequence of backslashes (\), and it is followed by another argument open character (e.g. [, remove the first \ and treat the other characters as regular text
  • if the last character of a literal argument is a \, ignore it and treat the following closing character (e.g. ]) as regular text
See the following open input/output pairs:
\c[[\ b]]
<code>\ b</code>

\c[[\a b]]
<code>\a b</code>

\c[[\[ b]]
<code>[ b</code>

\c[[\\[ b]]
<code>\[ b</code>

\c[[\\\[ b]]
<code>\\[ b</code>
and close examples:
\c[[a \]]
<code>a \</code>

\c[[a \]]]
<code>a ]</code>

\c[[a \\]]]
<code>a \]</code>

Ancestors (4)

  1. Macro argument
  2. OurBigBook Markup syntax
  3. OurBigBook Markup
  4. Home

Synonyms (1)