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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
if not modules then modules = { } end modules ['publ-fnd'] = {
version = 1.001,
comment = "this module part of publication support",
author = "Hans Hagen, PRAGMA-ADE, Hasselt NL",
copyright = "PRAGMA ADE / ConTeXt Development Team",
license = "see context related readme files"
}
if not characters then
dofile(resolvers.findfile("char-def.lua"))
dofile(resolvers.findfile("char-utf.lua"))
end
if not publications then
publications = { }
end
local tonumber, next, type = tonumber, next, type
local P, R, C, Cs, Cp, Cc, Carg = lpeg.P, lpeg.R, lpeg.C, lpeg.Cs, lpeg.Cp, lpeg.Cc, lpeg.Carg
local lpegmatch, lpegpatterns = lpeg.match, lpeg.patterns
local concat = table.concat
local formatters = string.formatters
local lowercase = characters.lower
local report = logs.reporter("publications")
local colon = P(":")
local dash = P("-")
local lparent = P("(")
local rparent = P(")")
local space = lpegpatterns.whitespace
local valid = 1 - colon - space - lparent - rparent
----- key = C(valid^1)
local key = C(R("az","AZ")^1)
local word = Cs(lpegpatterns.unquoted + lpegpatterns.argument + valid^1)
local number = C(valid^1)
----- f_string_key = formatters[" local s_%s = entry[%q]"]
local f_string_key = formatters[" local s_%s = entry[%q] if s_%s then s_%s = lower(s_%s) end "]
local f_number_key = formatters[" local n_%s = tonumber(entry[%q]) or 0"]
local f_field_key = formatters[" local f_%s = entry[%q] or ''"]
----- f_string_match = formatters["(s_%s and find(lower(s_%s),%q))"]
local f_string_match = formatters["(s_%s and find(s_%s,%q))"]
local f_number_match = formatters["(n_%s and n_%s >= %s and n_%s <= %s)"]
local f_field_match = formatters["f_%s"]
local match = key * (colon/"") * word * Carg(1) / function(key,_,word,keys)
-- keys[key] = f_string_key(key,key)
keys[key] = f_string_key(key,key,key,key,key)
return f_string_match(key,key,lowercase(word))
end
local range = key * (colon/"") * number * (dash/"") * number * Carg(1) / function(key,_,first,_,last,keys)
keys[key] = f_number_key(key,key)
return f_number_match(key,key,tonumber(first) or 0,key,tonumber(last) or 0)
end
local field = (P("field:")/"") * key * Carg(1) / function(_,key,keys)
keys[key] = f_field_key(key,key)
return f_field_match(key)
end
----- b_match = lparent
----- e_match = rparent * space^0 * P(-1)
----- pattern = Cs(b_match * ((field + range + match + space + P(1))-e_match)^1 * e_match)
local b_match = lparent
local e_match = rparent * space^0 * (P(-1) + P(",")/" or ")
local p_match = b_match * ((field + range + match + space + P(1))-e_match)^1 * e_match
local pattern = Cs(Cc("(") * (P("match")/"" * p_match)^1 * Cc(")"))
-- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- --
-- no longer faster
--
-- local tolower = lpegpatterns.tolower
-- local lower = string.lower
--
-- local allascii = R("\000\127")^1 * P(-1)
--
-- function characters.checkedlower(str)
-- return lpegmatch(allascii,str) and lower(str) or lpegmatch(tolower,str) or str
-- end
-- -- -- -- -- -- -- -- -- -- -- -- --
-- -- -- -- -- -- -- -- -- -- -- -- --
local f_template = string.formatters[ [[
local find = string.find
local lower = characters.lower
return function(entry)
%s
return %s and true or false
end
]] ]
----- function compile(expr,start)
local function compile(expr)
local keys = { }
-- local expression = lpegmatch(pattern,expr,start,keys)
local expression = lpegmatch(pattern,expr,1,keys)
-- report("compiling expression: %s",expr)
local definitions = { }
for k, v in next, keys do
definitions[#definitions+1] = v
end
definitions = concat(definitions,"\n")
local code = f_template(definitions,expression)
-- report("generated code: %s",code)
code = loadstring(code)
if type(code) == "function" then
code = code()
if type(code) == "function" then
return code
end
end
report("invalid expression: %s",expr)
return false
end
-- compile([[match(key:"foo bar")]])
-- compile([[match(key:'foo bar')]])
-- compile([[match(key:{foo bar})]])
local cache = { } -- todo: make weak, or just remember the last one (trial typesetting)
local check = P("match") -- * space^0 * Cp()
local function finder(expression)
local found = cache[expression]
if found == nil then
-- local e = lpegmatch(check,expression)
-- found = e and compile(expression,e) or false
found = lpegmatch(check,expression) and compile(expression) or false
if found then
local okay, message = pcall(found,{})
if not okay then
found = false
report("error in match: %s",message)
end
end
cache[expression] = found
end
return found
end
-- finder("match(author:foo)")
-- finder("match(author:foo and author:bar)")
-- finder("match(author:foo or (author:bar and page:123))")
-- finder("match(author:foo),match(author:foo)")
publications.finder = finder
function publications.search(dataset,expression)
local find = finder(expression)
if find then
local ordered = dataset.ordered
local target = { }
for i=1,#ordered do
local entry = ordered[i]
if find(entry) then
target[entry.tag] = entry
end
end
return target
else
return { source[expression] }
end
end
-- local dataset = publications.new()
-- publications.load(dataset,"t:/manuals/hybrid/tugboat.bib")
--
-- local n = 500
--
-- local function test(dataset,str)
-- local found
-- local start = os.clock()
-- for i=1,n do
-- found = search(dataset,str)
-- end
-- local elapsed = os.clock() - start
-- print(elapsed,elapsed/500,#table.keys(dataset.luadata),str)
-- print(table.concat(table.sortedkeys(found)," "))
-- return found
-- end
--
-- local found = test(dataset,[[match(author:hagen)]])
-- local found = test(dataset,[[match(author:hagen and author:hoekwater and year:1990-2010)]])
-- local found = test(dataset,[[match(author:"Bogusław Jackowski")]])
-- local found = test(dataset,[[match(author:"Bogusław Jackowski" and (tonumber(field:year) or 0) > 2000)]])
-- local found = test(dataset,[[Hagen:TB19-3-304]])
-- 1.328 0.002656 2710 author:hagen
-- Berdnikov:TB21-2-129 Guenther:TB5-1-24 Hagen:TB17-1-54 Hagen:TB19-3-304 Hagen:TB19-3-311 Hagen:TB19-3-317 Hagen:TB22-1-58 Hagen:TB22-3-118 Hagen:TB22-3-136 Hagen:TB22-3-160 Hagen:TB23-1-49 Hagen:TB25-1-108 Hagen:TB25-1-48 Hagen:TB26-2-152
-- 1.812 0.003624 2710 author:hagen and author:hoekwater and year:1990-2010
-- Berdnikov:TB21-2-129
-- 1.344 0.002688 2710 author:"Bogusław Jackowski"
-- Berdnikov:TB21-2-129 Jackowski:TB16-4-388 Jackowski:TB19-3-267 Jackowski:TB19-3-272 Jackowski:TB20-2-104 Jackowski:TB24-1-64 Jackowski:TB24-3-575 Nowacki:TB19-3-242 Rycko:TB14-3-171
-- 1.391 0.002782 2710 author:"Bogusław Jackowski" and (tonumber(field:year) or 0) > 2000
-- Jackowski:TB24-1-64 Jackowski:TB24-3-575
|