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terryburtonterryburton
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channelcode: Uplift
1 parent 6d33e2b commit 7710148

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‎src/channelcode.ps.src‎

Lines changed: 118 additions & 105 deletions
Original file line numberDiff line numberDiff line change
@@ -38,16 +38,108 @@
3838
currentglobal
3939
true setglobal
4040
/setpacking where {pop currentpacking true setpacking} if
41-
10 dict
42-
dup /loadctx dup /uk.co.terryburton.bwipp findresource put
43-
dup /unloadctx dup /uk.co.terryburton.bwipp findresource put
41+
50 dict
4442
dup /raiseerror dup /uk.co.terryburton.bwipp findresource put
4543
dup /processoptions dup /uk.co.terryburton.bwipp findresource put
4644
dup /renlinear dup /uk.co.terryburton.bwipp findresource put
4745
begin
46+
47+
%
48+
% Accelerate generation of bar patterns
49+
%
50+
/channelcode.memo [
51+
[ % CH3
52+
[ 0 [1 1 1 1 1 2 1 2] [1 1 1 1 1 1 1 3] [1 1 1 1 1 3 2] [1 1 1 1 1 3 3] ]
53+
]
54+
[ % CH4
55+
[ 0 [1 1 1 1 2 1 1 3] [1 1 1 1 1 1 1 4] [1 1 1 1 4 3 3] [1 1 1 1 4 4 4] ]
56+
]
57+
[ % CH5
58+
[ 0 [1 1 1 2 1 1 2 3] [1 1 1 1 1 1 1 5] [1 1 1 5 4 4 4] [1 1 1 5 5 5 5] ]
59+
]
60+
[ % CH6
61+
[ 0 [1 1 2 1 1 2 1 4] [1 1 1 1 1 1 1 6] [1 1 6 5 5 5 4] [1 1 6 6 6 6 6] ]
62+
]
63+
[ % CH7
64+
[ 0 [1 2 1 1 2 1 1 5] [1 1 1 1 1 1 1 7] [1 7 6 6 6 5 5] [1 7 7 7 7 7 7] ]
65+
[ 150000 [1 3 1 1 2 4 1 1] [1 1 3 1 2 3 2 1] [1 7 5 5 5 4 1] [1 7 7 5 5 4 2] ]
66+
[ 300000 [1 1 4 2 1 1 1 3] [1 2 4 1 1 1 2 2] [1 7 7 4 3 3 3] [1 7 6 3 3 3 3] ]
67+
[ 450000 [1 1 4 1 1 4 1 1] [1 3 2 1 2 1 2 2] [1 7 7 4 4 4 1] [1 7 5 4 4 3 3] ]
68+
]
69+
[ % CH8
70+
[ 0 [2 1 1 2 1 1 2 5] [1 1 1 1 1 1 1 8] [8 7 7 7 6 6 6] [8 8 8 8 8 8 8] ]
71+
[ 150000 [2 1 1 2 1 1 5 2] [1 1 2 1 5 2 1 2] [8 7 7 7 6 6 6] [8 8 8 7 7 3 2] ]
72+
[ 300000 [2 1 1 4 2 2 2 1] [1 1 4 2 1 2 1 3] [8 7 7 7 4 3 2] [8 8 8 5 4 4 3] ]
73+
[ 450000 [2 2 2 1 1 3 1 3] [1 1 2 1 1 2 4 3] [8 7 6 5 5 5 3] [8 8 8 7 7 7 6] ]
74+
[ 600000 [2 3 1 1 4 2 1 1] [1 1 3 1 3 1 2 3] [8 7 5 5 5 2 1] [8 8 8 6 6 4 4] ]
75+
[ 750000 [2 1 3 1 2 3 2 1] [1 2 1 1 3 4 1 2] [8 7 7 5 5 4 2] [8 8 7 7 7 5 2] ]
76+
[ 900000 [2 2 1 4 1 2 2 1] [1 2 1 2 1 5 1 2] [8 7 6 6 3 3 2] [8 8 7 7 6 6 2] ]
77+
[ 1050000 [2 4 1 1 1 2 2 2] [1 2 1 2 1 3 1 4] [8 7 4 4 4 4 3] [8 8 7 7 6 6 4] ]
78+
[ 1200000 [2 2 1 5 2 1 1 1] [1 3 1 3 2 1 1 3] [8 7 6 6 2 1 1] [8 8 6 6 4 3 3] ]
79+
[ 1350000 [2 2 1 3 3 1 1 2] [1 4 1 2 1 1 4 1] [8 7 6 6 4 2 2] [8 8 5 5 4 4 4] ]
80+
[ 1500000 [3 1 2 2 2 1 1 3] [1 1 1 1 2 2 4 3] [8 6 6 5 4 3 3] [8 8 8 8 8 7 6] ]
81+
[ 1650000 [3 2 1 2 3 1 2 1] [1 1 1 1 3 2 4 2] [8 6 5 5 4 2 2] [8 8 8 8 8 6 5] ]
82+
[ 1800000 [3 1 1 3 2 3 1 1] [1 2 1 1 3 4 2 1] [8 6 6 6 4 3 1] [8 8 7 7 7 5 2] ]
83+
[ 1950000 [3 2 1 2 1 2 2 2] [1 2 4 1 2 2 1 2] [8 6 5 5 4 4 3] [8 8 7 4 4 3 2] ]
84+
[ 2100000 [3 1 2 1 4 2 1 1] [1 4 1 2 1 1 2 3] [8 6 6 5 5 2 1] [8 8 5 5 4 4 4] ]
85+
[ 2250000 [4 1 1 4 1 1 2 1] [1 1 4 2 1 1 1 4] [8 5 5 5 2 2 2] [8 8 8 5 4 4 4] ]
86+
[ 2400000 [4 3 1 2 1 2 1 1] [1 2 4 2 2 2 1 1] [8 5 3 3 2 2 1] [8 8 7 4 3 2 1] ]
87+
[ 2550000 [5 1 1 1 1 1 3 2] [1 2 2 4 3 1 1 1] [8 4 4 4 4 4 4] [8 8 7 6 3 1 1] ]
88+
[ 2700000 [1 1 3 6 1 1 1 1] [2 1 1 2 1 1 6 1] [8 8 8 6 1 1 1] [8 7 7 7 6 6 6] ]
89+
[ 2850000 [1 1 1 2 2 3 2 3] [2 1 3 3 2 1 1 2] [8 8 8 8 7 6 4] [8 7 7 5 3 2 2] ]
90+
[ 3000000 [1 2 3 3 3 1 1 1] [2 1 1 1 5 1 2 2] [8 8 7 5 3 1 1] [8 7 7 7 7 3 3] ]
91+
[ 3150000 [1 3 1 2 2 2 3 1] [2 1 1 3 2 1 3 2] [8 8 6 6 5 4 3] [8 7 7 7 5 4 4] ]
92+
[ 3300000 [1 5 1 1 3 1 1 2] [2 1 1 4 3 2 1 1] [8 8 4 4 4 2 2] [8 7 7 7 4 2 1] ]
93+
[ 3450000 [1 1 2 2 2 5 1 1] [2 2 2 2 3 1 1 2] [8 8 8 7 6 5 1] [8 7 6 5 4 2 2] ]
94+
[ 3600000 [1 2 1 1 3 4 2 1] [2 2 3 1 1 1 2 3] [8 8 7 7 7 5 2] [8 7 6 4 4 4 4] ]
95+
[ 3750000 [1 1 2 1 1 5 3 1] [2 3 1 1 4 1 2 1] [8 8 8 7 7 7 3] [8 7 5 5 5 2 2] ]
96+
[ 3900000 [1 3 1 2 4 2 1 1] [2 3 3 1 1 1 2 2] [8 8 6 6 5 2 1] [8 7 5 3 3 3 3] ]
97+
[ 4050000 [1 3 1 2 3 1 2 2] [2 6 2 1 1 1 1 1] [8 8 6 6 5 3 3] [8 7 2 1 1 1 1] ]
98+
[ 4200000 [2 1 1 2 1 2 2 4] [2 1 3 1 3 3 1 1] [8 7 7 7 6 6 5] [8 7 7 5 5 3 1] ]
99+
[ 4350000 [2 2 1 4 1 2 2 1] [2 1 4 1 3 1 2 1] [8 7 6 6 3 3 2] [8 7 7 4 4 2 2] ]
100+
[ 4500000 [2 1 1 1 2 1 3 4] [2 2 2 1 2 1 3 2] [8 7 7 7 7 6 6] [8 7 6 5 5 4 4] ]
101+
[ 4650000 [2 4 2 1 2 2 1 1] [2 2 2 1 2 1 2 3] [8 7 4 3 3 2 1] [8 7 6 5 5 4 4] ]
102+
[ 4800000 [2 3 2 1 1 2 2 2] [2 4 1 2 1 1 3 1] [8 7 5 4 4 4 3] [8 7 4 4 3 3 3] ]
103+
[ 4950000 [3 2 2 1 2 1 1 3] [2 1 1 2 1 1 1 6] [8 6 5 4 4 3 3] [8 7 7 7 6 6 6] ]
104+
[ 5100000 [3 2 1 1 1 3 3 1] [2 2 3 2 1 1 3 1] [8 6 5 5 5 5 3] [8 7 6 4 3 3 3] ]
105+
[ 5250000 [4 1 2 1 2 2 1 2] [2 1 4 1 2 1 1 3] [8 5 5 4 4 3 2] [8 7 7 4 4 3 3] ]
106+
[ 5400000 [5 1 2 1 2 1 1 2] [2 2 1 1 4 1 3 1] [8 4 4 3 3 2 2] [8 7 6 6 6 3 3] ]
107+
[ 5550000 [1 1 4 4 1 2 1 1] [3 1 2 1 1 3 2 2] [8 8 8 5 2 2 1] [8 6 6 5 5 5 3] ]
108+
[ 5700000 [1 2 1 1 2 1 3 4] [3 1 4 1 2 2 1 1] [8 8 7 7 7 6 6] [8 6 6 3 3 2 1] ]
109+
[ 5850000 [1 1 3 3 2 2 2 1] [3 2 1 1 2 1 4 1] [8 8 8 6 4 3 2] [8 6 5 5 5 4 4] ]
110+
[ 6000000 [1 4 3 1 1 2 1 2] [3 2 2 1 2 2 1 2] [8 8 5 3 3 3 2] [8 6 5 4 4 3 2] ]
111+
[ 6150000 [2 1 1 4 1 2 1 3] [3 1 1 2 1 2 1 4] [8 7 7 7 4 4 3] [8 6 6 6 5 5 4] ]
112+
[ 6300000 [2 2 2 1 3 2 2 1] [3 1 4 1 3 1 1 1] [8 7 6 5 5 3 2] [8 6 6 3 3 1 1] ]
113+
[ 6450000 [2 5 1 3 1 1 1 1] [3 2 1 1 2 3 1 2] [8 7 3 3 1 1 1] [8 6 5 5 5 4 2] ]
114+
[ 6600000 [3 2 3 1 2 1 2 1] [3 1 3 2 2 1 1 2] [8 6 5 3 3 2 2] [8 6 6 4 3 2 2] ]
115+
[ 6750000 [4 1 2 2 1 1 3 1] [3 2 1 3 1 1 3 1] [8 5 5 4 3 3 3] [8 6 5 5 3 3 3] ]
116+
[ 6900000 [1 2 1 4 2 2 2 1] [4 1 1 2 2 2 2 1] [8 8 7 7 4 3 2] [8 5 5 5 4 3 2] ]
117+
[ 7050000 [1 2 5 2 1 2 1 1] [4 2 1 3 2 1 1 1] [8 8 7 3 2 2 1] [8 5 4 4 2 1 1] ]
118+
[ 7200000 [2 2 2 1 3 1 3 1] [4 1 3 1 3 1 1 1] [8 7 6 5 5 3 3] [8 5 5 3 3 1 1] ]
119+
[ 7350000 [3 1 4 2 1 1 1 2] [4 2 2 1 1 1 2 2] [8 6 6 3 2 2 2] [8 5 4 3 3 3 3] ]
120+
[ 7500000 [1 1 1 4 1 1 3 3] [5 2 1 2 2 1 1 1] [8 8 8 8 5 5 5] [8 4 3 3 2 1 1] ]
121+
[ 7650000 [5 2 1 2 1 2 1 1] [5 2 2 1 1 2 1 1] [8 4 3 3 2 2 1] [8 4 3 2 2 2 1] ]
122+
]
123+
] readonly def
124+
125+
/channelcode.mod23map [
126+
[] []
127+
[ 13 12 4 9 3 1 ]
128+
[ 8 2 12 3 18 16 4 1 ]
129+
[ 11 16 17 8 20 4 10 2 5 1 ]
130+
[ 1 4 16 18 3 12 2 8 9 13 6 1 ]
131+
[ 20 16 22 13 15 12 5 4 17 9 21 3 7 1 ]
132+
[ 2 6 18 8 1 3 9 4 12 13 16 2 6 18 8 1 ]
133+
] readonly def
134+
135+
/channelcode.maxvals [ 26 292 3493 44072 576688 7742862 ] readonly def
136+
137+
/channelcode.shortfinder [ 1 1 1 1 1 ] readonly def
138+
/channelcode.longfinder [ 1 1 1 1 1 1 1 1 1 ] readonly def
139+
48140
/channelcode {
49141

50-
20 dict begin % Confine variables to local scope
142+
20 dict begin
51143

52144
/ctx null def
53145
/dontdraw false def
@@ -59,22 +151,26 @@ begin
59151
//processoptions exec /options exch def
60152
/barcode exch def
61153

62-
/channelcode //loadctx exec
154+
/barlen barcode length def
63155

156+
%
64157
% Validate the input
65-
barcode length 2 lt barcode length 7 gt or {
158+
%
159+
barlen 2 lt barlen 7 gt or {
66160
/bwipp.channelcodeBadLength (Channel Code must be 2 to 7 digits) //raiseerror exec
67161
} if
68162
barcode {
69163
dup 48 lt exch 57 gt or {
70164
/bwipp.channelcodeBadCharacter (Channel Code must contain only digits) //raiseerror exec
71165
} if
72166
} forall
73-
barcode cvi [ 26 292 3493 44072 576688 7742862 ] barcode length 2 sub get gt {
167+
barcode cvi //channelcode.maxvals barlen 2 sub get gt {
74168
/bwipp.channelcodeTooBig (The Channel Code value is too big for the number of channels) //raiseerror exec
75169
} if
76170

171+
%
77172
% Tail-call optimisation FTW!
173+
%
78174
/loops1 { /s2max s1max 1 add s1 sub def /b1 1 def
79175
s1 1 eq {nextb1} {loopb1} ifelse } def
80176
/loopb1 { /b2max b1max 1 add b1 sub def /s2 1 def loops2 } def
@@ -119,89 +215,14 @@ begin
119215
/nextb1 { /b1 b1 1 add def b1 b1max le {loopb1} {nexts1} ifelse } def
120216
/nexts1 { /s1 s1 1 add def s1 s1max le {loops1} if } def
121217

122-
{
123-
/memo [ % Accelerate generation of bar patterns
124-
[ % CH3
125-
[ 0 [1 1 1 1 1 2 1 2] [1 1 1 1 1 1 1 3] [1 1 1 1 1 3 2] [1 1 1 1 1 3 3] ]
126-
]
127-
[ % CH4
128-
[ 0 [1 1 1 1 2 1 1 3] [1 1 1 1 1 1 1 4] [1 1 1 1 4 3 3] [1 1 1 1 4 4 4] ]
129-
]
130-
[ % CH5
131-
[ 0 [1 1 1 2 1 1 2 3] [1 1 1 1 1 1 1 5] [1 1 1 5 4 4 4] [1 1 1 5 5 5 5] ]
132-
]
133-
[ % CH6
134-
[ 0 [1 1 2 1 1 2 1 4] [1 1 1 1 1 1 1 6] [1 1 6 5 5 5 4] [1 1 6 6 6 6 6] ]
135-
]
136-
[ % CH7
137-
[ 0 [1 2 1 1 2 1 1 5] [1 1 1 1 1 1 1 7] [1 7 6 6 6 5 5] [1 7 7 7 7 7 7] ]
138-
[ 150000 [1 3 1 1 2 4 1 1] [1 1 3 1 2 3 2 1] [1 7 5 5 5 4 1] [1 7 7 5 5 4 2] ]
139-
[ 300000 [1 1 4 2 1 1 1 3] [1 2 4 1 1 1 2 2] [1 7 7 4 3 3 3] [1 7 6 3 3 3 3] ]
140-
[ 450000 [1 1 4 1 1 4 1 1] [1 3 2 1 2 1 2 2] [1 7 7 4 4 4 1] [1 7 5 4 4 3 3] ]
141-
]
142-
[ % CH8
143-
[ 0 [2 1 1 2 1 1 2 5] [1 1 1 1 1 1 1 8] [8 7 7 7 6 6 6] [8 8 8 8 8 8 8] ]
144-
[ 150000 [2 1 1 2 1 1 5 2] [1 1 2 1 5 2 1 2] [8 7 7 7 6 6 6] [8 8 8 7 7 3 2] ]
145-
[ 300000 [2 1 1 4 2 2 2 1] [1 1 4 2 1 2 1 3] [8 7 7 7 4 3 2] [8 8 8 5 4 4 3] ]
146-
[ 450000 [2 2 2 1 1 3 1 3] [1 1 2 1 1 2 4 3] [8 7 6 5 5 5 3] [8 8 8 7 7 7 6] ]
147-
[ 600000 [2 3 1 1 4 2 1 1] [1 1 3 1 3 1 2 3] [8 7 5 5 5 2 1] [8 8 8 6 6 4 4] ]
148-
[ 750000 [2 1 3 1 2 3 2 1] [1 2 1 1 3 4 1 2] [8 7 7 5 5 4 2] [8 8 7 7 7 5 2] ]
149-
[ 900000 [2 2 1 4 1 2 2 1] [1 2 1 2 1 5 1 2] [8 7 6 6 3 3 2] [8 8 7 7 6 6 2] ]
150-
[ 1050000 [2 4 1 1 1 2 2 2] [1 2 1 2 1 3 1 4] [8 7 4 4 4 4 3] [8 8 7 7 6 6 4] ]
151-
[ 1200000 [2 2 1 5 2 1 1 1] [1 3 1 3 2 1 1 3] [8 7 6 6 2 1 1] [8 8 6 6 4 3 3] ]
152-
[ 1350000 [2 2 1 3 3 1 1 2] [1 4 1 2 1 1 4 1] [8 7 6 6 4 2 2] [8 8 5 5 4 4 4] ]
153-
[ 1500000 [3 1 2 2 2 1 1 3] [1 1 1 1 2 2 4 3] [8 6 6 5 4 3 3] [8 8 8 8 8 7 6] ]
154-
[ 1650000 [3 2 1 2 3 1 2 1] [1 1 1 1 3 2 4 2] [8 6 5 5 4 2 2] [8 8 8 8 8 6 5] ]
155-
[ 1800000 [3 1 1 3 2 3 1 1] [1 2 1 1 3 4 2 1] [8 6 6 6 4 3 1] [8 8 7 7 7 5 2] ]
156-
[ 1950000 [3 2 1 2 1 2 2 2] [1 2 4 1 2 2 1 2] [8 6 5 5 4 4 3] [8 8 7 4 4 3 2] ]
157-
[ 2100000 [3 1 2 1 4 2 1 1] [1 4 1 2 1 1 2 3] [8 6 6 5 5 2 1] [8 8 5 5 4 4 4] ]
158-
[ 2250000 [4 1 1 4 1 1 2 1] [1 1 4 2 1 1 1 4] [8 5 5 5 2 2 2] [8 8 8 5 4 4 4] ]
159-
[ 2400000 [4 3 1 2 1 2 1 1] [1 2 4 2 2 2 1 1] [8 5 3 3 2 2 1] [8 8 7 4 3 2 1] ]
160-
[ 2550000 [5 1 1 1 1 1 3 2] [1 2 2 4 3 1 1 1] [8 4 4 4 4 4 4] [8 8 7 6 3 1 1] ]
161-
[ 2700000 [1 1 3 6 1 1 1 1] [2 1 1 2 1 1 6 1] [8 8 8 6 1 1 1] [8 7 7 7 6 6 6] ]
162-
[ 2850000 [1 1 1 2 2 3 2 3] [2 1 3 3 2 1 1 2] [8 8 8 8 7 6 4] [8 7 7 5 3 2 2] ]
163-
[ 3000000 [1 2 3 3 3 1 1 1] [2 1 1 1 5 1 2 2] [8 8 7 5 3 1 1] [8 7 7 7 7 3 3] ]
164-
[ 3150000 [1 3 1 2 2 2 3 1] [2 1 1 3 2 1 3 2] [8 8 6 6 5 4 3] [8 7 7 7 5 4 4] ]
165-
[ 3300000 [1 5 1 1 3 1 1 2] [2 1 1 4 3 2 1 1] [8 8 4 4 4 2 2] [8 7 7 7 4 2 1] ]
166-
[ 3450000 [1 1 2 2 2 5 1 1] [2 2 2 2 3 1 1 2] [8 8 8 7 6 5 1] [8 7 6 5 4 2 2] ]
167-
[ 3600000 [1 2 1 1 3 4 2 1] [2 2 3 1 1 1 2 3] [8 8 7 7 7 5 2] [8 7 6 4 4 4 4] ]
168-
[ 3750000 [1 1 2 1 1 5 3 1] [2 3 1 1 4 1 2 1] [8 8 8 7 7 7 3] [8 7 5 5 5 2 2] ]
169-
[ 3900000 [1 3 1 2 4 2 1 1] [2 3 3 1 1 1 2 2] [8 8 6 6 5 2 1] [8 7 5 3 3 3 3] ]
170-
[ 4050000 [1 3 1 2 3 1 2 2] [2 6 2 1 1 1 1 1] [8 8 6 6 5 3 3] [8 7 2 1 1 1 1] ]
171-
[ 4200000 [2 1 1 2 1 2 2 4] [2 1 3 1 3 3 1 1] [8 7 7 7 6 6 5] [8 7 7 5 5 3 1] ]
172-
[ 4350000 [2 2 1 4 1 2 2 1] [2 1 4 1 3 1 2 1] [8 7 6 6 3 3 2] [8 7 7 4 4 2 2] ]
173-
[ 4500000 [2 1 1 1 2 1 3 4] [2 2 2 1 2 1 3 2] [8 7 7 7 7 6 6] [8 7 6 5 5 4 4] ]
174-
[ 4650000 [2 4 2 1 2 2 1 1] [2 2 2 1 2 1 2 3] [8 7 4 3 3 2 1] [8 7 6 5 5 4 4] ]
175-
[ 4800000 [2 3 2 1 1 2 2 2] [2 4 1 2 1 1 3 1] [8 7 5 4 4 4 3] [8 7 4 4 3 3 3] ]
176-
[ 4950000 [3 2 2 1 2 1 1 3] [2 1 1 2 1 1 1 6] [8 6 5 4 4 3 3] [8 7 7 7 6 6 6] ]
177-
[ 5100000 [3 2 1 1 1 3 3 1] [2 2 3 2 1 1 3 1] [8 6 5 5 5 5 3] [8 7 6 4 3 3 3] ]
178-
[ 5250000 [4 1 2 1 2 2 1 2] [2 1 4 1 2 1 1 3] [8 5 5 4 4 3 2] [8 7 7 4 4 3 3] ]
179-
[ 5400000 [5 1 2 1 2 1 1 2] [2 2 1 1 4 1 3 1] [8 4 4 3 3 2 2] [8 7 6 6 6 3 3] ]
180-
[ 5550000 [1 1 4 4 1 2 1 1] [3 1 2 1 1 3 2 2] [8 8 8 5 2 2 1] [8 6 6 5 5 5 3] ]
181-
[ 5700000 [1 2 1 1 2 1 3 4] [3 1 4 1 2 2 1 1] [8 8 7 7 7 6 6] [8 6 6 3 3 2 1] ]
182-
[ 5850000 [1 1 3 3 2 2 2 1] [3 2 1 1 2 1 4 1] [8 8 8 6 4 3 2] [8 6 5 5 5 4 4] ]
183-
[ 6000000 [1 4 3 1 1 2 1 2] [3 2 2 1 2 2 1 2] [8 8 5 3 3 3 2] [8 6 5 4 4 3 2] ]
184-
[ 6150000 [2 1 1 4 1 2 1 3] [3 1 1 2 1 2 1 4] [8 7 7 7 4 4 3] [8 6 6 6 5 5 4] ]
185-
[ 6300000 [2 2 2 1 3 2 2 1] [3 1 4 1 3 1 1 1] [8 7 6 5 5 3 2] [8 6 6 3 3 1 1] ]
186-
[ 6450000 [2 5 1 3 1 1 1 1] [3 2 1 1 2 3 1 2] [8 7 3 3 1 1 1] [8 6 5 5 5 4 2] ]
187-
[ 6600000 [3 2 3 1 2 1 2 1] [3 1 3 2 2 1 1 2] [8 6 5 3 3 2 2] [8 6 6 4 3 2 2] ]
188-
[ 6750000 [4 1 2 2 1 1 3 1] [3 2 1 3 1 1 3 1] [8 5 5 4 3 3 3] [8 6 5 5 3 3 3] ]
189-
[ 6900000 [1 2 1 4 2 2 2 1] [4 1 1 2 2 2 2 1] [8 8 7 7 4 3 2] [8 5 5 5 4 3 2] ]
190-
[ 7050000 [1 2 5 2 1 2 1 1] [4 2 1 3 2 1 1 1] [8 8 7 3 2 2 1] [8 5 4 4 2 1 1] ]
191-
[ 7200000 [2 2 2 1 3 1 3 1] [4 1 3 1 3 1 1 1] [8 7 6 5 5 3 3] [8 5 5 3 3 1 1] ]
192-
[ 7350000 [3 1 4 2 1 1 1 2] [4 2 2 1 1 1 2 2] [8 6 6 3 2 2 2] [8 5 4 3 3 3 3] ]
193-
[ 7500000 [1 1 1 4 1 1 3 3] [5 2 1 2 2 1 1 1] [8 8 8 8 5 5 5] [8 4 3 3 2 1 1] ]
194-
[ 7650000 [5 2 1 2 1 2 1 1] [5 2 2 1 1 2 1 1] [8 4 3 3 2 2 1] [8 4 3 2 2 2 1] ]
195-
]
196-
] def
197-
} ctxdef
198-
199218
/encode {
200219
/chan exch def
201220
/target exch def
202221

222+
%
203223
% Lookup memoized starting value close to the target
204-
memo chan 3 sub get {
224+
%
225+
//channelcode.memo chan 3 sub get {
205226
/m exch def
206227
m 0 get target gt {exit} if
207228
/mv m 0 get def
@@ -217,54 +238,49 @@ begin
217238
msmax aload pop [/s7max /s6max /s5max /s4max /s3max /s2max /s1max] {exch def} forall
218239

219240
1 {chkchr} repeat 8 chan sub 2 mul dup 16 exch sub getinterval
220-
221241
} def
222242

223-
/barlen barcode length def
224-
243+
%
225244
% Determine finder
226-
/finder shortfinder { [ 1 1 1 1 1 ] } { [ 1 1 1 1 1 1 1 1 1 ] } ifelse def
245+
%
246+
/finder shortfinder { //channelcode.shortfinder } { //channelcode.longfinder } ifelse def
227247

248+
%
228249
% Encode the main data
250+
%
229251
/data barcode cvi barlen 1 add encode def
230252

253+
%
231254
% Determine check data
232-
{
233-
/mod23map [
234-
[] []
235-
[ 13 12 4 9 3 1 ]
236-
[ 8 2 12 3 18 16 4 1 ]
237-
[ 11 16 17 8 20 4 10 2 5 1 ]
238-
[ 1 4 16 18 3 12 2 8 9 13 6 1 ]
239-
[ 20 16 22 13 15 12 5 4 17 9 21 3 7 1 ]
240-
[ 2 6 18 8 1 3 9 4 12 13 16 2 6 18 8 1 ]
241-
] def
242-
} ctxdef
255+
%
243256
/check [] def
244257
includecheck {
245-
/mod23 mod23map barlen get def
258+
/mod23 //channelcode.mod23map barlen get def
246259
0
247260
0 1 data length 1 sub {
248261
dup data exch get 1 sub exch mod23 exch get mul add
249262
} for
250263
23 mod 3 encode /check exch def
251264
} if
252265

266+
%
253267
% Construct the symbol
268+
%
254269
/sbs [
255270
finder aload pop
256271
data aload pop
257272
check aload pop
258273
] def
259274

275+
%
260276
% Create the human readable text
277+
%
261278
/txt barlen array def
262279
0 1 barlen 1 sub {
263280
/i exch def
264281
txt i [barcode i 1 getinterval 0 0 () 0] put
265282
} for
266283

267-
% Return the arguments
268284
<<
269285
/ren /renlinear
270286
/sbs sbs
@@ -278,9 +294,6 @@ begin
278294
>>
279295

280296
dontdraw not //renlinear if
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//unloadctx exec
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end
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286299
}

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