[#BloombergLP-balxml-Formatter_CompactImplUtil-addValidComment]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/balxml.adoc[balxml]::xref:BloombergLP/balxml/Formatter_CompactImplUtil.adoc[Formatter_CompactImplUtil]::addValidComment
:relfileprefix: ../../../
:mrdocs:

Write the specified `comment` into the specified `stream`, with formatting depending on the specified `state`, and update the `state` accordingly. If the optionally specified `forceNewline` is `true` then a new line is inserted for comments not already on a new line. Also optionally specify an `omitEnclosingWhitespace` that specifies if a space character should be omitted before and after `comment`. If `omitEnclosingWhitespace` is not specified then a space character is inserted before and after `comment`. Return 0 on success, and non‐zero value otherwise. Note that a non‐zero return value is returned if either `comment` contains `‐‐` or if `omitEnclosingWhitespace` is `true` and `comment` ends with `‐`. Also note that if an element‐opening tag is not completed with a `>`, `addValidComment` will add `>`.

== Synopsis

Declared in `<balxml_formatter_compactimpl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
static
int
addValidComment(
    std::ostream& stream,
    xref:BloombergLP/balxml/Formatter_CompactImplUtil/State.adoc[State]* state,
    std::string_view const& comment,
    bool forceNewline = true,
    bool omitEnclosingWhitespace = false);
----


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