1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
if not modules then modules = { } end modules ['chem-ini'] = {
version = 1.001,
comment = "companion to chem-ini.mkiv",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
local format = string.format
local lpegmatch, patterns = lpeg.match, lpeg.patterns
local trace_molecules = false trackers.register("chemistry.molecules", function(v) trace_molecules = v end)
local report_chemistry = logs.reporter("chemistry")
local context = context
local cpatterns = patterns.context
chemistry = chemistry or { }
local chemistry = chemistry
--[[
<p>The next code started out as adaptation of code from Wolfgang Schuster as
posted on the mailing list. The current version supports nested braces and
unbraced integers as scripts.</p>
]]--
local moleculeparser = cpatterns.scripted
chemistry.moleculeparser = moleculeparser
function chemistry.molecule(str)
return lpegmatch(moleculeparser,str)
end
function commands.molecule(str)
if trace_molecules then
local rep = lpegmatch(moleculeparser,str)
report_chemistry("molecule %a becomes %a",str,rep)
context(rep)
else
context(lpegmatch(moleculeparser,str))
end
end
|
