Re: [NTG-context] Lua conditionals fail inside \starttexdefinition

On Tue, Sep 4, 2012 at 9:35 PM, Marco Patzer wrote:

On 2012-09-04 Herbert Voss wrote:

...

voss@shania:~/ConTeXt> lua zzz.lua lua: zzz.lua:1: unexpected symbol near ';'

marco@homerow:/tmp$ lua t.lua true

...

voss@shania:~/ConTeXt> lua -v Lua 5.1.4 Copyright (C) 1994-2008 Lua.org, PUC-Rio

marco@homerow:/tmp$ lua -v Lua 5.2.1 Copyright (C) 1994-2012 Lua.org, PUC-Rio

Because in Lua 5.2 there is the empty statements http://www.lua.org/manual/5.2/manual.html#3 """ 3.3.1 – Blocks A block is a list of statements, which are executed sequentially: block ::= {stat} Lua has empty statements that allow you to separate statements with semicolons, start a block with a semicolon or write two semicolons in sequence: stat ::= ‘;’ """ So stat ::= if exp then block {elseif exp then block} [else block] end means that if exp then ; else ; end is valid. Luatex still uses lua 5.1.4 -- luigi