[VELOCITY-873] Subtraction without spaces results in parse error

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Environment: VTL in user macro in Atlassian Confluence 5.9.4
• Assignee: Unassigned
• Reporter: Alexander Rosenberg
• Created: 09/May/16 03:46
• Updated: 09/May/16 08:16
• Resolved: 09/May/16 08:16

Description

This works as expected:

## @noparams

#set ($list = ["a", "b", "c"])
#set ($num = $list.size()+1)
<p>$num</p>

However, changing it to subtraction results in a ParseErrorException:

## @noparams

#set ($list = ["a", "b", "c"])
#set ($num = $list.size()-1)
<p>$num</p>

The error message given in atlassian-confluence.log:

org.apache.velocity.exception.ParseErrorException: Encountered "-1" at getRenderedContent[line 4, column 26]
Was expecting one of:
    <RPAREN> ...
    <WHITESPACE> ...
    "-" ...
    "+" ...
    "*" ...
    "/" ...
    "%" ...
    <LOGICAL_AND> ...
    <LOGICAL_OR> ...
    <LOGICAL_LT> ...
    <LOGICAL_LE> ...
    <LOGICAL_GT> ...
    <LOGICAL_GE> ...
    <LOGICAL_EQUALS> ...
    <LOGICAL_NOT_EQUALS> ...
    <DOT> ...

        at org.apache.velocity.runtime.RuntimeInstance.evaluate(RuntimeInstance.java:1202)
        at org.apache.velocity.runtime.RuntimeInstance.evaluate(RuntimeInstance.java:1164)
        at org.apache.velocity.app.VelocityEngine.evaluate(VelocityEngine.java:219)
        at com.atlassian.confluence.util.velocity.VelocityUtils.writeRenderedContent(VelocityUtils.java:148)
        at com.atlassian.confluence.util.velocity.VelocityUtils.getRenderedContent(VelocityUtils.java:130)
        at com.atlassian.confluence.util.velocity.VelocityUtils.getRenderedContent(VelocityUtils.java:117)
        at com.atlassian.confluence.util.velocity.VelocityUtils.getRenderedContent(VelocityUtils.java:113)
        at com.atlassian.confluence.macro.GenericVelocityMacro.execute(GenericVelocityMacro.java:101)
~~~snipped~~~

Issue Links

• relates to: VELOCITY-874 Subtraction doesn't work as expected