Upload files to 'Data-Matrix'
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commit
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/**
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https://github.com/datalog/datamatrix-svg
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*/
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'use strict';
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function DATAMatrix( Q ) {
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var
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M = []
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,xx = 0
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,yy = 0
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,bit = function( x, y ) {
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M[ y ] = M[ y ] || [],
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M[ y ][ x ] = 1;
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}
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,toAscii = function( t ) {
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var
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r = [],
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l = t.length;
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for( var i = 0; i < l; i++ ) {
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var
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c = t.charCodeAt( i ),
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c1 = ( i + 1 < l ) ? t.charCodeAt( i + 1 ) : 0;
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if( c > 47 && c < 58 && c1 > 47 && c1 < 58 ) { /* 2 digits */
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r.push( ( c - 48 ) * 10 + c1 + 82 ), /* - 48 + 130 = 82 */
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i++;
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} else if( c > 127 ) { /* extended char */
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r.push( 235 ),
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r.push( ( c - 127 ) & 255 );
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} else r.push( c + 1 ); /* char */
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}
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return r;
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}
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,toBase = function( t ) {
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var
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r = [ 231 ], /* switch to Base 256 */
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l = t.length;
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if( 250 < l ) {
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r.push( 37 + ( l / 250 | 0 ) & 255 ); /* length high byte (in 255 state algo) */
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}
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r.push( l % 250 + 149 * ( r.length + 1 ) % 255 + 1 & 255 ); /* length low byte (in 255 state algo) */
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for( var i = 0; i < l; i++ ) {
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r.push( t.charCodeAt( i ) + 149 * ( r.length + 1 ) % 255 + 1 & 255 ); /* data in 255 state algo */
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}
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return r;
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}
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,toEdifact = function( t ) {
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var
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n = t.length,
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l = ( n + 1 ) & -4, cw = 0, ch,
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r = ( l > 0 ) ? [ 240 ] : []; /* switch to Edifact */
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for( var i = 0; i < l; i++ ) {
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if( i < l - 1 ) {
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/* encode char */
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ch = t.charCodeAt( i );
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if( ch < 32 || ch > 94 ) return []; /* not in set */
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} else ch = 31; /* return to ASCII */
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cw = cw * 64 + ( ch & 63 );
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if(( i & 3 ) == 3 ) {
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/* 4 data in 3 words */
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r.push( cw >> 16 ),
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r.push( cw >> 8& 255 ),
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r.push( cw & 255 ),
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cw = 0;
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}
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};
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return l > n ? r : r.concat( toAscii( t.substr( l == 0 ? 0 : l - 1 ) ) ); /* last chars*/
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}
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,toText = function( t, s ) {
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var
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i, j,
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cc = 0,
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cw = 0,
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l = t.length,
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r = [ s[ 0 ] ], /* start switch */
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push = function( v ) {
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/* pack 3 chars in 2 codes */
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cw = 40 * cw + v;
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/* add code */
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if( cc++ == 2 ) {
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r.push( ++cw >> 8 ),
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r.push( cw & 255 ),
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cc = cw = 0;
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}
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};
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for( i = 0; i < l; i++ ) {
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/* last char in ASCII is shorter */
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if( 0 == cc && i == l - 1 ) break;
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var
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ch = t.charCodeAt(i);
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if( ch > 127 && 238 != r[ 0 ] ) { /* extended char */
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push( 1 ),
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push( 30 ),
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ch -= 128; /* hi bit in C40 & TEXT */
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}
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for( j = 1; ch > s[ j ]; j += 3 ); /* select char set */
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var
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x = s[ j + 1 ]; /* shift */
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if( 8 == x || ( 9 == x && 0 == cc && i == l - 1 ) ) return []; /* char not in set or padding fails */
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if( x < 5 && cc == 2 && i == l-1) break; /* last char in ASCII */
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if( x < 5 ) push( x ); /* shift */
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push( ch - s[ j + 2 ] ); /* char offset */
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}
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if(2 == cc && 238 !== r[ 0 ] ) { /* add pad */
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push( 0 );
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}
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r.push( 254 ); /* return to ASCII */
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if( cc > 0 || i < l ) r = r.concat( toAscii( t.substr( i - cc ) ) ); /* last chars */
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return r;
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}
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,encodeMsg = function( text, rct ) {
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text = unescape( encodeURI( text ) );
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var
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M = [];
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var
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enc = toAscii( text ),
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el = enc.length,
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k = toText( text, [ /* C40 */
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230,
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31, 0, 0,
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32, 9, 29,
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47, 1, 33,
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57, 9, 44,
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64, 1, 43,
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90, 9, 51,
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95, 1, 69,
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127, 2, 96,
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255, 1, 0
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]),
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l = k.length;
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if( l > 0 && l < el ) enc = k, el = l;
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k = toText( text, [ /* TEXT */
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239,
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31, 0, 0,
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32, 9, 29,
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47, 1, 33,
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57, 9, 44,
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64, 1, 43,
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90, 2, 64,
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95, 1, 69,
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122, 9, 83,
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127, 2, 96,
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255, 1, 0
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]);
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l = k.length;
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if( l > 0 && l < el ) enc = k, el = l;
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k = toText( text, [ /* X12*/
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238,
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12, 8, 0,
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13, 9, 13,
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31, 8, 0,
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32, 9, 29,
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41, 8, 0,
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42, 9, 41,
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47, 8, 0,
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57, 9, 44,
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64, 8, 0,
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90, 9, 51,
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255, 8, 0
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]);
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l = k.length;
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if( l > 0 && l < el ) enc = k, el = l;
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k = toEdifact( text ); l = k.length;
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if( l > 0 && l < el ) enc = k, el = l;
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k = toBase( text ); l = k.length;
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if( l > 0 && l < el ) enc = k, el = l;
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//console.log('a', el )
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//console.log('b', l )
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var
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h, w, nc = 1, nr = 1, fw, fh, /* symbol size, regions, region size */
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i, j = - 1, c, r, s, b = 1, /* compute symbol size */
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rs = new Array( 70 ), /* reed / solomon code */
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rc = new Array( 70 ),
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lg = new Array( 256 ), /* log / exp table for multiplication */
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ex = new Array( 255 );
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if( rct && el < 50 ) {
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/* rect */
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k = [ /* symbol width, checkwords */
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16, 7,
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28, 11,
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24, 14,
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32, 18,
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32, 24,
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44, 28
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];
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do {
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w = k[ ++j ]; /* width */
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h = 6 + ( j & 12 ); /* height */
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l = w * h / 8; /* bytes count in symbol */
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} while( l - k[ ++j ] < el ); /* could we fill the rect? */
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/* column regions */
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if( w > 25 ) nc = 2;
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} else {
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/* square */
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w = h = 6;
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i = 2; /* size increment */
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k = [ 5, 7, 10, 12, 14, 18, 20, 24, 28, 36, 42, 48, 56, 68, 84, 112, 144, 192, 224, 272, 336, 408, 496, 620 ]; /* rs checkwords */
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do {
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if( ++j == k.length ) return [ 0, 0 ]; /* msg is too long */
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if( w > 11 * i ) i = 4 + i & 12; /* advance increment */
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w = h += i;
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l = ( w * h ) >> 3;
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} while( l - k[ j ] < el );
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if( w > 27 ) nr = nc = 2 * ( w / 54 | 0 ) + 2; /* regions */
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if( l > 255 ) b = 2 * ( l >> 9 ) + 2; /* blocks */
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}
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s = k[ j ], /* rs checkwords */
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fw = w / nc, /* region size */
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fh = h / nr;
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/* first padding */
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if( el < l - s ) enc[ el++ ] = 129;
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/* more padding */
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while( el < l - s ) {
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enc[ el++ ] = ( ( ( 149 * el ) % 253 ) + 130 ) % 254;
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}
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/* Reed Solomon error detection and correction */
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s /= b;
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/* log / exp table of Galois field */
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for( j = 1, i = 0; i < 255; i++ ) {
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ex[ i ] = j,
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lg[ j ] = i,
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j += j;
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if( j > 255 ) j ^= 301; /* 301 == a^8 + a^5 + a^3 + a^2 + 1 */
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}
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/* RS generator polynomial */
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for( rs[ s ] = 0, i = 1; i <= s; i++ )
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for( j = s - i, rs[ j ] = 1; j < s; j++ )
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rs[ j ] = rs[ j + 1 ] ^ ex[ ( lg[ rs[ j ] ] + i ) % 255 ];
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/* RS correction data for each block */
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for( c = 0; c < b; c++ ) {
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for( i = 0; i <= s; i++ ) rc[ i ] = 0;
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for( i = c; i < el; i += b )
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for( j = 0, x = rc[ 0 ] ^ enc[ i ]; j < s; j++ )
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rc[ j ] = rc[ j + 1 ] ^ ( x ? ex[ ( lg[ rs[ j ] ] + lg[ x ] ) % 255 ] : 0 );
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/* interleaved correction data */
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for( i = 0; i < s; i++ )
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enc[ el + c + i * b ] = rc[ i ];
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}
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/* layout perimeter finder pattern */
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/* horizontal */
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for( i = 0; i < h + 2 * nr; i += fh + 2 )
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for( j = 0; j < w + 2 * nc; j++ ) {
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bit( j, i + fh + 1 );
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if( ( j & 1 ) == 0 ) bit( j, i );
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}
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/* vertical */
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for( i = 0; i < w + 2 * nc; i += fw + 2 )
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for( j = 0; j < h; j++ ) {
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bit( i, j + ( j / fh | 0 ) * 2 + 1 );
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if( ( j & 1 ) == 1 ) bit( i + fw + 1, j + ( j / fh | 0 ) * 2 );
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}
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s = 2, /* step */
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c = 0, /* column */
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r = 4, /* row */
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b = [ /* nominal byte layout */
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0, 0,
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-1, 0,
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-2, 0,
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0, -1,
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-1, -1,
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-2, -1,
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-1, -2,
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-2, -2
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];
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/* diagonal steps */
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for( i = 0; i < l; r -= s, c += s ) {
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if( r == h - 3 && c == - 1 )
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k = [ /* corner A layout */
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w, 6 - h,
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w, 5 - h,
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w, 4 - h,
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w, 3 - h,
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w - 1, 3 - h,
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3, 2,
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2, 2,
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1, 2
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];
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else if( r == h + 1 && c == 1 && ( w & 7 ) == 0 && ( h & 7 ) == 6 )
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k = [ /* corner D layout */
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w - 2, -h,
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w - 3, -h,
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w - 4, -h,
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w - 2, -1 - h,
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w - 3, -1 - h,
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w - 4, -1 - h,
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w - 2, -2,
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-1, -2
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];
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else {
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if( r == 0 && c == w - 2 && ( w & 3 ) ) continue; /* corner B: omit upper left */
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if( r < 0 || c >= w || r >= h || c < 0 ) { /* outside */
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s = -s, /* turn around */
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r += 2 + s / 2,
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c += 2 - s / 2;
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while( r < 0 || c >= w || r >= h || c < 0 ) {
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r -= s,
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c += s;
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}
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}
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if( r == h - 2 && c == 0 && ( w & 3 ) )
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k = [ /* corner B layout */
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w - 1, 3 - h,
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w - 1, 2 - h,
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w - 2, 2 - h,
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w - 3, 2 - h,
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w - 4, 2 - h,
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0, 1,
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0, 0,
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0, -1
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];
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else if( r == h - 2 && c == 0 && ( w & 7 ) == 4 )
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k = [ /* corner C layout */
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w - 1, 5 - h,
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w - 1, 4 - h,
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w - 1, 3 - h,
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w - 1, 2 - h,
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w - 2, 2 - h,
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0, 1,
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0, 0,
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0, -1
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];
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else if( r == 1 && c == w - 1 && ( w & 7 ) == 0 && ( h & 7 ) == 6 ) continue; /* omit corner D */
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else k = b; /* nominal L - shape layout */
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}
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/* layout each bit */
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for( el = enc[ i++ ], j = 0; el > 0; j += 2, el >>= 1 ) {
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if( el & 1 ) {
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var
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x = c + k[ j ],
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y = r + k[ j + 1 ];
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/* wrap around */
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if( x < 0 ) x += w, y += 4 - ( ( w + 4 ) & 7 );
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if( y < 0 ) y += h, x += 4 - ( ( h + 4 ) & 7 );
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/* region gap */
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bit( x + 2 * ( x / fw | 0 ) + 1, y + 2 * ( y / fh | 0 ) + 1 );
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}
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}
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}
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/* unfilled corner */
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for( i = w; i & 3; i-- ) {
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bit( i, i );
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}
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xx = w + 2 * nc,
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yy = h + 2 * nr;
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}
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return ( function() {
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function ishex( c ) {
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return /^#[0-9a-f]{3}(?:[0-9a-f]{3})?$/i.test( c );
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}
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function svg( n, a ) {
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n = document.createElementNS( ns, n );
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for( var o in a || {} ) {
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n.setAttribute( o, a[ o ] );
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}
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return n;
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}
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var
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abs = Math.abs,
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r, x, y, d, sx, sy,
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ns = 'http://www.w3.org/2000/svg',
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path = '',
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q = ('string' == typeof Q ) ? { msg: Q } : Q || {},
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p = q.pal || ['#000'],
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dm = abs( q.dim ) || 256,
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pd = abs( q.pad ), pd = ( pd > -1 ) ? pd : 0,
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mx = [ 1, 0, 0, 1, pd, pd ],
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fg = p[ 0 ], fg = ishex( fg ) ? fg : '#000',
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bg = p[ 1 ], bg = ishex( bg ) ? bg : 0,
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/* render optimized or verbose svg */
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optimized = ( q.vrb ) ? 0 : 1;
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encodeMsg( q.msg || '', q.rct );
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sx = xx + pd * 2,
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sy = yy + pd * 2;
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y = yy;
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while( y-- ) {
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d = 0, x = xx;
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while( x-- ) {
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if( M[ y ][ x ] ) {
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if( optimized ) {
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d++;
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if( !M[ y ][ x - 1 ] )
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path += 'M' + x + ',' + y + 'h' + d +'v1h-' + d + 'v-1z', d = 0;
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} else path += 'M' + x + ',' + y + 'h1v1h-1v-1z';
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}
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}
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}
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r = svg('svg', {
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'viewBox' : [ 0, 0, sx, sy ].join(' ')
|
||||
,'width' : dm / sy * sx | 0
|
||||
,'height' : dm
|
||||
,'fill' : fg
|
||||
,'shape-rendering' : 'crispEdges'
|
||||
,'xmlns' : ns
|
||||
,'version' : '1.1'
|
||||
} );
|
||||
|
||||
if( bg ) r.appendChild( svg('path', {
|
||||
|
||||
'fill' : bg
|
||||
,'d' : 'M0,0v' + sy + 'h' + sx + 'V0H0Z'
|
||||
} ) );
|
||||
|
||||
r.appendChild( svg('path', {
|
||||
|
||||
'transform' : 'matrix(' + mx + ')'
|
||||
,'d' : path
|
||||
} ) );
|
||||
|
||||
return r;
|
||||
|
||||
} )();
|
||||
}
|
||||
@ -0,0 +1,2 @@
|
||||
/** https://github.com/datalog/datamatrix-svg under MIT license */
|
||||
'use strict';function DATAMatrix(r){var e=[],n=0,t=0,f=function(r,n){e[n]=e[n]||[],e[n][r]=1},o=function(r){for(var e=[],n=r.length,t=0;t<n;t++){var f=r.charCodeAt(t),o=t+1<n?r.charCodeAt(t+1):0;f>47&&f<58&&o>47&&o<58?(e.push(10*(f-48)+o+82),t++):f>127?(e.push(235),e.push(f-127&255)):e.push(f+1)}return e},h=function(r,e){var n,t,f=0,h=0,i=r.length,u=[e[0]],a=function(r){h=40*h+r,2==f++&&(u.push(++h>>8),u.push(255&h),f=h=0)};for(n=0;n<i&&(0!=f||n!=i-1);n++){var s=r.charCodeAt(n);for(s>127&&238!=u[0]&&(a(1),a(30),s-=128),t=1;s>e[t];t+=3);var l=e[t+1];if(8==l||9==l&&0==f&&n==i-1)return[];if(l<5&&2==f&&n==i-1)break;l<5&&a(l),a(s-e[t+2])}return 2==f&&238!==u[0]&&a(0),u.push(254),(f>0||n<i)&&(u=u.concat(o(r.substr(n-f)))),u},i=function(r,e){r=unescape(encodeURI(r));var i=o(r),u=i.length,a=h(r,[230,31,0,0,32,9,29,47,1,33,57,9,44,64,1,43,90,9,51,95,1,69,127,2,96,255,1,0]),s=a.length;s>0&&s<u&&(i=a,u=s),(s=(a=h(r,[239,31,0,0,32,9,29,47,1,33,57,9,44,64,1,43,90,2,64,95,1,69,122,9,83,127,2,96,255,1,0])).length)>0&&s<u&&(i=a,u=s),(s=(a=h(r,[238,12,8,0,13,9,13,31,8,0,32,9,29,41,8,0,42,9,41,47,8,0,57,9,44,64,8,0,90,9,51,255,8,0])).length)>0&&s<u&&(i=a,u=s),(s=(a=function(r){for(var e,n=r.length,t=n+1&-4,f=0,h=t>0?[240]:[],i=0;i<t;i++){if(i<t-1){if((e=r.charCodeAt(i))<32||e>94)return[]}else e=31;f=64*f+(63&e),3==(3&i)&&(h.push(f>>16),h.push(f>>8&255),h.push(255&f),f=0)}return t>n?h:h.concat(o(r.substr(0==t?0:t-1)))}(r)).length)>0&&s<u&&(i=a,u=s),(s=(a=function(r){var e=[231],n=r.length;250<n&&e.push(37+(n/250|0)&255),e.push(n%250+149*(e.length+1)%255+1&255);for(var t=0;t<n;t++)e.push(r.charCodeAt(t)+149*(e.length+1)%255+1&255);return e}(r)).length)>0&&s<u&&(i=a,u=s);var l,c,p,v,g,d,w,A,m=1,C=1,b=-1,y=1,M=new Array(70),x=new Array(70),z=new Array(256),E=new Array(255);if(e&&u<50){a=[16,7,28,11,24,14,32,18,32,24,44,28];do{s=(c=a[++b])*(l=6+(12&b))/8}while(s-a[++b]<u);c>25&&(m=2)}else{c=l=6,g=2,a=[5,7,10,12,14,18,20,24,28,36,42,48,56,68,84,112,144,192,224,272,336,408,496,620];do{if(++b==a.length)return[0,0];c>11*g&&(g=4+g&12),s=(c=l+=g)*l>>3}while(s-a[b]<u);c>27&&(C=m=2*(c/54|0)+2),s>255&&(y=2*(s>>9)+2)}for(p=c/m,v=l/C,u<s-(A=a[b])&&(i[u++]=129);u<s-A;)i[u++]=(149*u%253+130)%254;for(A/=y,b=1,g=0;g<255;g++)E[g]=b,z[b]=g,(b+=b)>255&&(b^=301);for(M[A]=0,g=1;g<=A;g++)for(M[b=A-g]=1;b<A;b++)M[b]=M[b+1]^E[(z[M[b]]+g)%255];for(d=0;d<y;d++){for(g=0;g<=A;g++)x[g]=0;for(g=d;g<u;g+=y)for(b=0,j=x[0]^i[g];b<A;b++)x[b]=x[b+1]^(j?E[(z[M[b]]+z[j])%255]:0);for(g=0;g<A;g++)i[u+d+g*y]=x[g]}for(g=0;g<l+2*C;g+=v+2)for(b=0;b<c+2*m;b++)f(b,g+v+1),0==(1&b)&&f(b,g);for(g=0;g<c+2*m;g+=p+2)for(b=0;b<l;b++)f(g,b+2*(b/v|0)+1),1==(1&b)&&f(g+p+1,b+2*(b/v|0));for(A=2,d=0,w=4,y=[0,0,-1,0,-2,0,0,-1,-1,-1,-2,-1,-1,-2,-2,-2],g=0;g<s;w-=A,d+=A){if(w==l-3&&-1==d)a=[c,6-l,c,5-l,c,4-l,c,3-l,c-1,3-l,3,2,2,2,1,2];else if(w==l+1&&1==d&&0==(7&c)&&6==(7&l))a=[c-2,-l,c-3,-l,c-4,-l,c-2,-1-l,c-3,-1-l,c-4,-1-l,c-2,-2,-1,-2];else{if(0==w&&d==c-2&&3&c)continue;if(w<0||d>=c||w>=l||d<0)for(w+=2+(A=-A)/2,d+=2-A/2;w<0||d>=c||w>=l||d<0;)w-=A,d+=A;if(w==l-2&&0==d&&3&c)a=[c-1,3-l,c-1,2-l,c-2,2-l,c-3,2-l,c-4,2-l,0,1,0,0,0,-1];else if(w==l-2&&0==d&&4==(7&c))a=[c-1,5-l,c-1,4-l,c-1,3-l,c-1,2-l,c-2,2-l,0,1,0,0,0,-1];else{if(1==w&&d==c-1&&0==(7&c)&&6==(7&l))continue;a=y}}for(u=i[g++],b=0;u>0;b+=2,u>>=1)if(1&u){var j=d+a[b],k=w+a[b+1];j<0&&(j+=c,k+=4-(c+4&7)),k<0&&(k+=l,j+=4-(l+4&7)),f(j+2*(j/p|0)+1,k+2*(k/v|0)+1)}}for(g=c;3&g;g--)f(g,g);n=c+2*m,t=l+2*C};return function(){function f(r){return/^#[0-9a-f]{3}(?:[0-9a-f]{3})?$/i.test(r)}function o(r,e){for(var n in r=document.createElementNS(g,r),e||{})r.setAttribute(n,e[n]);return r}var h,u,a,s,l,c,p,v=Math.abs,g="http://www.w3.org/2000/svg",d="",w="string"==typeof r?{msg:r}:r||{},A=w.pal||["#000"],m=v(w.dim)||256,C=[1,0,0,1,p=(p=v(w.pad))>-1?p:0,p],b=f(b=A[0])?b:"#000",y=f(y=A[1])?y:0,M=w.vrb?0:1;for(i(w.msg||"",w.rct),l=n+2*p,c=t+2*p,a=t;a--;)for(s=0,u=n;u--;)e[a][u]&&(M?(s++,e[a][u-1]||(d+="M"+u+","+a+"h"+s+"v1h-"+s+"v-1z",s=0)):d+="M"+u+","+a+"h1v1h-1v-1z");return h=o("svg",{viewBox:[0,0,l,c].join(" "),width:m/c*l|0,height:m,fill:b,"shape-rendering":"crispEdges",xmlns:g,version:"1.1"}),y&&h.appendChild(o("path",{fill:y,d:"M0,0v"+c+"h"+l+"V0H0Z"})),h.appendChild(o("path",{transform:"matrix("+C+")",d:d})),h}()}
|
||||
Loading…
Reference in New Issue