[VELOCITY-709] String literal "\\" parses incorrectly

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7
• Fix Version/s: 1.7, 2.0
• Component/s: Engine
• Assignee: Unassigned
• Reporter: Byron Foster
• Created: 05/Mar/09 00:35
• Updated: 07/Jan/18 15:40
• Resolved: 28/Mar/10 18:29

Description

Given the following VTL:

#set($var = "
" )
#set($var2 = "${var}")

results in the following parse error:

Encountered "${" at test.vm[line 2, column 15]
Was expecting one of:
<RPAREN> ...
...

the problem is that when parsing the string literal "
" the second double quote is escaped. This was actually a bug that was introduced in 1.6.x, but I don't think we necessarily need to fix it in that branch.

Issue Links

• is related to: VELOCITY-520 "\u0061" causes lexer exception
• is related to: VELOCITY-587 Backslashes throw lexical errors in double-quoted strings
• is related to: VELOCITY-519 Java escape sequences should work in Velocity macros
• is related to: VELOCITY-555 Escape quotes in interpolated strings (both ' and ") by doubling them ('' and "")