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https://issues.apache.org/jira/browse/SOLR-10883?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16047923#comment-16047923
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Steve Rowe edited comment on SOLR-10883 at 6/13/17 1:50 PM:
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Patch, backslash escapes {{=>}}, {{<=}}, {{\->}} and {{<\-}}. (Even though
{{\->}} renders properly in the PDF, I think it's better to be consistent.)
I found that some of the other substitutions (for {{...}}, {{--}}, {{'}})
looked fine in the PDF, and the others weren't present outside of code blocks:
{{(C)}}, {{(R)}}, {{(TM)}}.
I went the individual escaping route after determining that there is no way to
globally turn off this kind of substitution - there is an open feature request
for this: [https://github.com/asciidoctor/asciidoctor/issues/1061].
was (Author: steve_rowe):
Patch, backslash escapes {{=>}}, {{<=}}, {{->}} and {{<-}}. (Even though
{{->}} renders properly in the PDF, I think it's better to be consistent.)
I found that some of the other substitutions (for {{...}}, {{--}}, {{'}})
looked fine in the PDF, and the others weren't present outside of code blocks:
{{(C)}}, {{(R)}}, {{(TM)}}.
I went the individual escaping route after determining that there is no way to
globally turn off this kind of substitution - there is an open feature request
for this: [https://github.com/asciidoctor/asciidoctor/issues/1061].
> Ref guide: some replacement substitutions, e.g. => to right arrow, are
> rendered invisibly in the PDF
> -----------------------------------------------------------------------------------------------------
>
> Key: SOLR-10883
> URL: https://issues.apache.org/jira/browse/SOLR-10883
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Components: documentation
> Reporter: Steve Rowe
> Assignee: Steve Rowe
> Attachments: Screen Shot 2017-06-12 at 7.23.07 PM.png,
> SOLR-10883.patch
>
>
> {{=>}}, {{<=}}, and {{<-}} are rendered as invisible in the PDF. These
> “replacement substitutions” aka “textual symbol replacements” (
> http://asciidoctor.org/docs/asciidoc-writers-guide/#replacements ) render as
> invisible characters in the PDF, though they are visible in the HTML format,
> when substitution is in effect.
> This is only a problem outside of code blocks (e.g. {{-->}} close comment
> syntax in XML is never improperly substituted).
> In the screenshot below, a table from the
> CharFilterFactories|solr.MappingCharFilterFactory section is shown in the
> HTML format on the left, and in PDF format to the right; in the PDF format
> the {{=>}} is invisible.
> !Screen Shot 2017-06-12 at 7.23.07 PM.png|width=800!
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