1if not modules then modules = { } end modules [ ' luat-usr ' ] = {
2 version = 1 . 001 ,
3 comment = " companion to luat-lib.mkiv " ,
4 author = " Hans Hagen, PRAGMA-ADE, Hasselt NL " ,
5 copyright = " PRAGMA ADE / ConTeXt Development Team " ,
6 license = " see context related readme files "
7}
8
9local global = global
10
11local moduledata = moduledata
12local thirddata = thirddata
13local userdata = userdata
14local documentdata = documentdata
15
16local context = context
17local tostring = tostring
18local tonumber = tonumber
19local print = print
20
21local string = string
22local table = table
23local lpeg = lpeg
24local math = math
25local io = io
26local os = os
27local lpeg = lpeg
28
29local setmetatableindex = table . setmetatableindex
30local load = load
31local xpcall = xpcall
32local instance_banner = string . formatters [ " =[instance: %s] " ]
33local tex_errormessage = context . errmessage
34
35local implement = interfaces . implement
36local reporter = logs . reporter
37
38local report_instance = reporter ( " lua instance " )
39local report_script = reporter ( " lua script " )
40local report_thread = reporter ( " lua thread " )
41local newline = logs . newline
42
43lua . numbers = lua . numbers or { }
44lua . messages = lua . messages or { }
45
46local numbers = lua . numbers
47local messages = lua . messages
48
49storage . register ( " lua/numbers " , numbers , " lua.numbers " )
50storage . register ( " lua/messages " , messages , " lua.messages " )
51
52
53
54
55local function runscript ( code )
56 local done , message = loadstring ( code )
57 if done then
58 done ( )
59 else
60 newline ( )
61 report_script ( " error : %s " , message or " unknown " )
62 report_script ( )
63 report_script ( " code : %s " , code )
64 newline ( )
65 end
66end
67
68local threads = setmetatableindex ( function ( t , k )
69 local v = setmetatableindex ( { } , global )
70 t [ k ] = v
71 return v
72end )
73
74local function runthread ( name , code )
75 if not code or code = = " " then
76 threads [ name ] = nil
77 else
78 local thread = threads [ name ]
79 local done , message = loadstring ( code , nil , nil , thread )
80 if done then
81 done ( )
82 else
83 newline ( )
84 report_thread ( " thread: %s " , name )
85 report_thread ( " error : %s " , message or " unknown " )
86 report_thread ( )
87 report_thread ( " code : %s " , code )
88 newline ( )
89 end
90 end
91end
92
93interfaces . implement {
94 name = " luascript " ,
95 actions = runscript ,
96 arguments = " string "
97}
98
99interfaces . implement {
100 name = " luathread " ,
101 actions = runthread ,
102 arguments = " 2 strings " ,
103}
104
105local function registername ( name , message )
106 if not name or name = = " " then
107 report_instance ( " no valid name given " )
108 return
109 end
110 if not message or message = = " " then
111 message = name
112 end
113 local lnn = numbers [ name ]
114 if not lnn then
115 lnn = # messages + 1
116 messages [ lnn ] = message
117 numbers [ name ] = lnn
118 end
119 local report = reporter ( " lua instance " , message )
120 local proxy = {
121
122 global = global ,
123
124 moduledata = setmetatableindex ( moduledata ) ,
125 thirddata = setmetatableindex ( thirddata ) ,
126
127 userdata = userdata ,
128 documentdata = documentdata ,
129
130 context = context ,
131
132 tostring = tostring ,
133 tonumber = tonumber ,
134
135 string = string ,
136 table = table ,
137 lpeg = lpeg ,
138 math = math ,
139 io = io ,
140 os = os ,
141 lpeg = lpeg ,
142
143 print = print ,
144 report = report ,
145 }
146 return function ( code )
147 local code , message = load ( code , nil , nil , proxy )
148 if not code then
149 report_instance ( " error: %s " , message or code )
150 elseif not xpcall ( code , report ) then
151 tex_errormessage ( " hit return to continue or quit this run " )
152 end
153 end
154end
155
156lua . registername = registername
157
158implement {
159 name = " registernamedlua " ,
160 arguments = " 3 strings " ,
161 actions = function ( name , message , csname )
162 if csname and csname ~ = " " then
163 implement {
164 name = csname ,
165 arguments = " string " ,
166 actions = registername ( name , message ) or report ,
167 scope = " private " ,
168 }
169 else
170 report_instance ( " unvalid csname for %a " , message or name or " ? " )
171 end
172 end
173}
174 |
