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https://issues.apache.org/jira/browse/FREEMARKER-106?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16671573#comment-16671573
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Daniel Dekany commented on FREEMARKER-106:
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Then {{$\{#array[@]}}} is not meant to be a FreeMarker interpolation at all,
but static text. So, there's an clash between the Bash syntax and the
FreeMarker syntax, and traditionally you had to use
{{<#noparse>...</#noparse>}} and similar verbose workarounds. But since 2.3.28
there's an {{interpolationSyntax}} or {{interpolation_syntax}} configuration
setting, and you should chose square bracket interpolation syntax with that.
Then {{$\{...}}} is just static text, and {{[=...]}} is used for FreeMarker
interpolations. (I would also use square bracket tag syntax together with that,
but that's just aesthetics.) See also:
[https://freemarker.apache.org/docs/dgui_misc_alternativesyntax.html]
> Unable to parse variable containing special char ${# with
> freemarker.template.Template.process(object,writer)
> -------------------------------------------------------------------------------------------------------------
>
> Key: FREEMARKER-106
> URL: https://issues.apache.org/jira/browse/FREEMARKER-106
> Project: Apache Freemarker
> Issue Type: Bug
> Components: engine
> Affects Versions: 2.3.23
> Reporter: Amar Gurung
> Priority: Major
>
> Unable to parse variable containing $\{# e.g ${#marker_files[@]} or
> $\{#array[@]}
> Sample snippet:
> -----------------------------
> Configuration cfg = new Configuration(Configuration.VERSION_2_3_28);
> cfg.setLogTemplateExceptions(false);
> cfg.setClassForTemplateLoading(FtlExpressionEvaluator.class, "templates");
> cfg.setDefaultEncoding("UTF-8");
> cfg.setLocale(Locale.US);
> cfg.setTemplateExceptionHandler(TemplateExceptionHandler.IGNORE_HANDLER);
> cfg.setNumberFormat("0.######");
> Template t = new Template("freeMarkerTemplate", new StringReader(line), cfg);
>
> Error stack:
> freemarker.core.ParseException: Syntax error in template "freeMarkerTemplate"
> in line 1, column 13:
> Lexical error: encountered "m" (109), after "#".
> at freemarker.core.TokenMgrError.toParseException(TokenMgrError.java:260)
> at freemarker.template.Template.<init>(Template.java:269)
> at freemarker.template.Template.<init>(Template.java:203)
> at freemarker.template.Template.<init>(Template.java:182)
> at freemarker.template.Template.<init>(Template.java:125)
>
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