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<h4 class="subsection">4.1.1 Syntax Common to All OOGL File Formats</h4>
<p>Most OOGL object file formats are free-format ASCII — any amount of
white space (blanks, tabs, newlines) may appear between tokens (numbers,
key words, etc.). Line breaks are almost always insignificant, with a
couple of exceptions as noted. Comments begin with # and continue to
the end of the line; they're allowed anywhere a newline is.
<p>Binary formats are also defined for several objects; See <a href="Binary-format.html#Binary-format">Binary format</a>, and the individual object descriptions.
<p>Typical OOGL objects begin with a key word designating object type,
possibly with modifiers indicating presence of color information etc.
In some formats the key word is optional, for compatibility with file
formats defined elsewhere. Object type is then determined by
guessing from the file suffix (if any) or from the data itself.
<p>Key words are case sensitive. Some have optional prefix letters
indicating presence of color or other data; in this case the order of
prefixes is significant, e.g. <code>CNMESH</code> is meaningful but
<code>NCMESH</code> is invalid.
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