Template:Indic letters/Khmer with matras/doc

Usage
is used to add the boilerplate for Khmer script consonant letters in articles such as ka (Indic). It shows the vowel matras applied to the consonant and tells how the absence of a vowel is marked. While the system is simple for Pali and Sanskrit, it is more complicated for the Khmer language, and the description might need many revisions.

A typical usage would be as, for the letter Ka.

Parameters

 * 1 or first unnamed parameter. The transliteration of the letter.  The IAST-style transliteration is used, so this might not be the same as the usual name of the letter.
 * 2 or second unnamed parameter. The letter itself in Khmer script.
 * 3 or third unnamed parameter. The 'name' of the letter as used in the article.  It appears in the header of the table of matras.  For series 1 (old voiceless) consonants, the vowel in the name is 'a', the default, but for series 2 (formerly voiced) consonants, the vowel in the name is 'o'. Optional
 * no_viriam. The presence of this parameter suppresses the entry of the letter devowellised by viriam. It is intended for consonants that do not occur with viriam.  The recommended method of entry is 1. Optional