mirror of
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570 lines
21 KiB
Plaintext
570 lines
21 KiB
Plaintext
# vim:fileencoding=utf-8
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# License: BSD Copyright: 2015, Kovid Goyal <kovid at kovidgoyal.net>
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# noqa: eol-semicolon
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# The Plural-Forms parser {{{
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# From: https://github.com/SlexAxton/Jed/blob/master/jed.js licensed under the WTFPL
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Jed = {}
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vr'''
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Jed.PF = {};
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Jed.PF.parse = function ( p ) {
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var plural_str = Jed.PF.extractPluralExpr( p );
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return Jed.PF.parser.parse.call(Jed.PF.parser, plural_str);
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};
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Jed.PF.compile = function ( p ) {
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// Handle trues and falses as 0 and 1
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function imply( val ) {
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return (val === true ? 1 : val ? val : 0);
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}
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var ast = Jed.PF.parse( p );
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return function ( n ) {
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return imply( Jed.PF.interpreter( ast )( n ) );
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};
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};
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Jed.PF.interpreter = function ( ast ) {
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return function ( n ) {
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var res;
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switch ( ast.type ) {
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case 'GROUP':
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return Jed.PF.interpreter( ast.expr )( n );
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case 'TERNARY':
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if ( Jed.PF.interpreter( ast.expr )( n ) ) {
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return Jed.PF.interpreter( ast.truthy )( n );
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}
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return Jed.PF.interpreter( ast.falsey )( n );
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case 'OR':
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return Jed.PF.interpreter( ast.left )( n ) || Jed.PF.interpreter( ast.right )( n );
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case 'AND':
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return Jed.PF.interpreter( ast.left )( n ) && Jed.PF.interpreter( ast.right )( n );
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case 'LT':
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return Jed.PF.interpreter( ast.left )( n ) < Jed.PF.interpreter( ast.right )( n );
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case 'GT':
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return Jed.PF.interpreter( ast.left )( n ) > Jed.PF.interpreter( ast.right )( n );
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case 'LTE':
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return Jed.PF.interpreter( ast.left )( n ) <= Jed.PF.interpreter( ast.right )( n );
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case 'GTE':
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return Jed.PF.interpreter( ast.left )( n ) >= Jed.PF.interpreter( ast.right )( n );
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case 'EQ':
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return Jed.PF.interpreter( ast.left )( n ) == Jed.PF.interpreter( ast.right )( n );
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case 'NEQ':
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return Jed.PF.interpreter( ast.left )( n ) != Jed.PF.interpreter( ast.right )( n );
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case 'MOD':
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return Jed.PF.interpreter( ast.left )( n ) % Jed.PF.interpreter( ast.right )( n );
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case 'VAR':
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return n;
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case 'NUM':
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return ast.val;
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default:
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throw new Error("Invalid Token found.");
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}
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};
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};
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Jed.PF.extractPluralExpr = function ( p ) {
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// trim first
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p = p.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
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if (! /;\s*$/.test(p)) {
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p = p.concat(';');
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}
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var nplurals_re = /nplurals\=(\d+);/,
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plural_re = /plural\=(.*);/,
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nplurals_matches = p.match( nplurals_re ),
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res = {},
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plural_matches;
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// Find the nplurals number
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if ( nplurals_matches.length > 1 ) {
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res.nplurals = nplurals_matches[1];
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}
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else {
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throw new Error('nplurals not found in plural_forms string: ' + p );
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}
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// remove that data to get to the formula
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p = p.replace( nplurals_re, "" );
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plural_matches = p.match( plural_re );
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if (!( plural_matches && plural_matches.length > 1 ) ) {
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throw new Error('`plural` expression not found: ' + p);
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}
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return plural_matches[ 1 ];
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};
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/* Jison generated parser */
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Jed.PF.parser = (function(){
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var parser = {trace: function trace() { },
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yy: {},
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symbols_: {"error":2,"expressions":3,"e":4,"EOF":5,"?":6,":":7,"||":8,"&&":9,"<":10,"<=":11,">":12,">=":13,"!=":14,"==":15,"%":16,"(":17,")":18,"n":19,"NUMBER":20,"$accept":0,"$end":1},
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terminals_: {2:"error",5:"EOF",6:"?",7:":",8:"||",9:"&&",10:"<",11:"<=",12:">",13:">=",14:"!=",15:"==",16:"%",17:"(",18:")",19:"n",20:"NUMBER"},
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productions_: [0,[3,2],[4,5],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,3],[4,1],[4,1]],
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performAction: function anonymous(yytext,yyleng,yylineno,yy,yystate,$$,_$) {
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var $0 = $$.length - 1;
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switch (yystate) {
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case 1: return { type : 'GROUP', expr: $$[$0-1] };
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case 2:this.$ = { type: 'TERNARY', expr: $$[$0-4], truthy : $$[$0-2], falsey: $$[$0] };
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break;
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case 3:this.$ = { type: "OR", left: $$[$0-2], right: $$[$0] };
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break;
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case 4:this.$ = { type: "AND", left: $$[$0-2], right: $$[$0] };
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break;
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case 5:this.$ = { type: 'LT', left: $$[$0-2], right: $$[$0] };
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break;
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case 6:this.$ = { type: 'LTE', left: $$[$0-2], right: $$[$0] };
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break;
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case 7:this.$ = { type: 'GT', left: $$[$0-2], right: $$[$0] };
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break;
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case 8:this.$ = { type: 'GTE', left: $$[$0-2], right: $$[$0] };
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break;
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case 9:this.$ = { type: 'NEQ', left: $$[$0-2], right: $$[$0] };
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break;
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case 10:this.$ = { type: 'EQ', left: $$[$0-2], right: $$[$0] };
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break;
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case 11:this.$ = { type: 'MOD', left: $$[$0-2], right: $$[$0] };
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break;
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case 12:this.$ = { type: 'GROUP', expr: $$[$0-1] };
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break;
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case 13:this.$ = { type: 'VAR' };
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break;
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case 14:this.$ = { type: 'NUM', val: Number(yytext) };
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break;
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}
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},
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table: [{3:1,4:2,17:[1,3],19:[1,4],20:[1,5]},{1:[3]},{5:[1,6],6:[1,7],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16]},{4:17,17:[1,3],19:[1,4],20:[1,5]},{5:[2,13],6:[2,13],7:[2,13],8:[2,13],9:[2,13],10:[2,13],11:[2,13],12:[2,13],13:[2,13],14:[2,13],15:[2,13],16:[2,13],18:[2,13]},{5:[2,14],6:[2,14],7:[2,14],8:[2,14],9:[2,14],10:[2,14],11:[2,14],12:[2,14],13:[2,14],14:[2,14],15:[2,14],16:[2,14],18:[2,14]},{1:[2,1]},{4:18,17:[1,3],19:[1,4],20:[1,5]},{4:19,17:[1,3],19:[1,4],20:[1,5]},{4:20,17:[1,3],19:[1,4],20:[1,5]},{4:21,17:[1,3],19:[1,4],20:[1,5]},{4:22,17:[1,3],19:[1,4],20:[1,5]},{4:23,17:[1,3],19:[1,4],20:[1,5]},{4:24,17:[1,3],19:[1,4],20:[1,5]},{4:25,17:[1,3],19:[1,4],20:[1,5]},{4:26,17:[1,3],19:[1,4],20:[1,5]},{4:27,17:[1,3],19:[1,4],20:[1,5]},{6:[1,7],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[1,28]},{6:[1,7],7:[1,29],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16]},{5:[2,3],6:[2,3],7:[2,3],8:[2,3],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[2,3]},{5:[2,4],6:[2,4],7:[2,4],8:[2,4],9:[2,4],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[2,4]},{5:[2,5],6:[2,5],7:[2,5],8:[2,5],9:[2,5],10:[2,5],11:[2,5],12:[2,5],13:[2,5],14:[2,5],15:[2,5],16:[1,16],18:[2,5]},{5:[2,6],6:[2,6],7:[2,6],8:[2,6],9:[2,6],10:[2,6],11:[2,6],12:[2,6],13:[2,6],14:[2,6],15:[2,6],16:[1,16],18:[2,6]},{5:[2,7],6:[2,7],7:[2,7],8:[2,7],9:[2,7],10:[2,7],11:[2,7],12:[2,7],13:[2,7],14:[2,7],15:[2,7],16:[1,16],18:[2,7]},{5:[2,8],6:[2,8],7:[2,8],8:[2,8],9:[2,8],10:[2,8],11:[2,8],12:[2,8],13:[2,8],14:[2,8],15:[2,8],16:[1,16],18:[2,8]},{5:[2,9],6:[2,9],7:[2,9],8:[2,9],9:[2,9],10:[2,9],11:[2,9],12:[2,9],13:[2,9],14:[2,9],15:[2,9],16:[1,16],18:[2,9]},{5:[2,10],6:[2,10],7:[2,10],8:[2,10],9:[2,10],10:[2,10],11:[2,10],12:[2,10],13:[2,10],14:[2,10],15:[2,10],16:[1,16],18:[2,10]},{5:[2,11],6:[2,11],7:[2,11],8:[2,11],9:[2,11],10:[2,11],11:[2,11],12:[2,11],13:[2,11],14:[2,11],15:[2,11],16:[2,11],18:[2,11]},{5:[2,12],6:[2,12],7:[2,12],8:[2,12],9:[2,12],10:[2,12],11:[2,12],12:[2,12],13:[2,12],14:[2,12],15:[2,12],16:[2,12],18:[2,12]},{4:30,17:[1,3],19:[1,4],20:[1,5]},{5:[2,2],6:[1,7],7:[2,2],8:[1,8],9:[1,9],10:[1,10],11:[1,11],12:[1,12],13:[1,13],14:[1,14],15:[1,15],16:[1,16],18:[2,2]}],
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defaultActions: {6:[2,1]},
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parseError: function parseError(str, hash) {
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throw new Error(str);
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},
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parse: function parse(input) {
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var self = this,
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stack = [0],
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vstack = [null], // semantic value stack
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lstack = [], // location stack
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table = this.table,
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yytext = '',
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yylineno = 0,
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yyleng = 0,
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recovering = 0,
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TERROR = 2,
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EOF = 1;
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//this.reductionCount = this.shiftCount = 0;
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this.lexer.setInput(input);
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this.lexer.yy = this.yy;
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this.yy.lexer = this.lexer;
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if (typeof this.lexer.yylloc == 'undefined')
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this.lexer.yylloc = {};
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var yyloc = this.lexer.yylloc;
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lstack.push(yyloc);
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if (typeof this.yy.parseError === 'function')
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this.parseError = this.yy.parseError;
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function popStack (n) {
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stack.length = stack.length - 2*n;
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vstack.length = vstack.length - n;
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lstack.length = lstack.length - n;
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}
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function lex() {
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var token;
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token = self.lexer.lex() || 1; // $end = 1
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// if token isn't its numeric value, convert
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if (typeof token !== 'number') {
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token = self.symbols_[token] || token;
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}
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return token;
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}
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var symbol, preErrorSymbol, state, action, a, r, yyval={},p,len,newState, expected, errStr;
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while (true) {
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// retreive state number from top of stack
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state = stack[stack.length-1];
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// use default actions if available
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if (this.defaultActions[state]) {
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action = this.defaultActions[state];
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} else {
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if (symbol === null || symbol === undefined)
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symbol = lex();
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// read action for current state and first input
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action = table[state] && table[state][symbol];
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}
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// handle parse error
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_handle_error:
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if (typeof action === 'undefined' || !action.length || !action[0]) {
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if (!recovering) {
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// Report error
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expected = [];
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for (p in table[state]) if (this.terminals_[p] && p > 2) {
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expected.push("'"+this.terminals_[p]+"'");
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}
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errStr = '';
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if (this.lexer.showPosition) {
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errStr = 'Parse error on line '+(yylineno+1)+":\n"+this.lexer.showPosition()+"\nExpecting "+expected.join(', ') + ", got '" + this.terminals_[symbol]+ "'";
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} else {
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errStr = 'Parse error on line '+(yylineno+1)+": Unexpected " +
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(symbol == 1 /*EOF*/ ? "end of input" :
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("'"+(this.terminals_[symbol] || symbol)+"'"));
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}
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this.parseError(errStr,
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{text: this.lexer.match, token: this.terminals_[symbol] || symbol, line: this.lexer.yylineno, loc: yyloc, expected: expected});
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}
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// just recovered from another error
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if (recovering == 3) {
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if (symbol == EOF) {
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throw new Error(errStr || 'Parsing halted.');
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}
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// discard current lookahead and grab another
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yyleng = this.lexer.yyleng;
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yytext = this.lexer.yytext;
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yylineno = this.lexer.yylineno;
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yyloc = this.lexer.yylloc;
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symbol = lex();
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}
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// try to recover from error
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while (1) {
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// check for error recovery rule in this state
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if ((TERROR.toString()) in table[state]) {
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break;
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}
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if (state === 0) {
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throw new Error(errStr || 'Parsing halted.');
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}
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popStack(1);
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state = stack[stack.length-1];
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}
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preErrorSymbol = symbol; // save the lookahead token
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symbol = TERROR; // insert generic error symbol as new lookahead
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state = stack[stack.length-1];
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action = table[state] && table[state][TERROR];
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recovering = 3; // allow 3 real symbols to be shifted before reporting a new error
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}
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// this shouldn't happen, unless resolve defaults are off
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if (action[0] instanceof Array && action.length > 1) {
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throw new Error('Parse Error: multiple actions possible at state: '+state+', token: '+symbol);
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}
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switch (action[0]) {
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case 1: // shift
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//this.shiftCount++;
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stack.push(symbol);
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vstack.push(this.lexer.yytext);
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lstack.push(this.lexer.yylloc);
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stack.push(action[1]); // push state
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symbol = null;
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if (!preErrorSymbol) { // normal execution/no error
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yyleng = this.lexer.yyleng;
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yytext = this.lexer.yytext;
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yylineno = this.lexer.yylineno;
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yyloc = this.lexer.yylloc;
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if (recovering > 0)
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recovering--;
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} else { // error just occurred, resume old lookahead f/ before error
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symbol = preErrorSymbol;
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preErrorSymbol = null;
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}
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break;
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case 2: // reduce
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//this.reductionCount++;
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len = this.productions_[action[1]][1];
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// perform semantic action
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yyval.$ = vstack[vstack.length-len]; // default to $$ = $1
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// default location, uses first token for firsts, last for lasts
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yyval._$ = {
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first_line: lstack[lstack.length-(len||1)].first_line,
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last_line: lstack[lstack.length-1].last_line,
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first_column: lstack[lstack.length-(len||1)].first_column,
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last_column: lstack[lstack.length-1].last_column
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};
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r = this.performAction.call(yyval, yytext, yyleng, yylineno, this.yy, action[1], vstack, lstack);
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if (typeof r !== 'undefined') {
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return r;
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}
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// pop off stack
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if (len) {
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stack = stack.slice(0,-1*len*2);
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vstack = vstack.slice(0, -1*len);
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lstack = lstack.slice(0, -1*len);
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}
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stack.push(this.productions_[action[1]][0]); // push nonterminal (reduce)
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vstack.push(yyval.$);
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lstack.push(yyval._$);
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// goto new state = table[STATE][NONTERMINAL]
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newState = table[stack[stack.length-2]][stack[stack.length-1]];
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stack.push(newState);
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break;
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case 3: // accept
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return true;
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}
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}
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return true;
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}};/* Jison generated lexer */
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var lexer = (function(){
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var lexer = ({EOF:1,
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parseError:function parseError(str, hash) {
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if (this.yy.parseError) {
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this.yy.parseError(str, hash);
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} else {
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throw new Error(str);
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}
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},
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setInput:function (input) {
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this._input = input;
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this._more = this._less = this.done = false;
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this.yylineno = this.yyleng = 0;
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this.yytext = this.matched = this.match = '';
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this.conditionStack = ['INITIAL'];
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this.yylloc = {first_line:1,first_column:0,last_line:1,last_column:0};
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return this;
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},
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input:function () {
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var ch = this._input[0];
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this.yytext+=ch;
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this.yyleng++;
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this.match+=ch;
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this.matched+=ch;
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var lines = ch.match(/\n/);
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if (lines) this.yylineno++;
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this._input = this._input.slice(1);
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return ch;
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},
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unput:function (ch) {
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this._input = ch + this._input;
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return this;
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},
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more:function () {
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this._more = true;
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return this;
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},
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pastInput:function () {
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var past = this.matched.substr(0, this.matched.length - this.match.length);
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return (past.length > 20 ? '...':'') + past.substr(-20).replace(/\n/g, "");
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},
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upcomingInput:function () {
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var next = this.match;
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if (next.length < 20) {
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next += this._input.substr(0, 20-next.length);
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}
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return (next.substr(0,20)+(next.length > 20 ? '...':'')).replace(/\n/g, "");
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},
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showPosition:function () {
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var pre = this.pastInput();
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var c = new Array(pre.length + 1).join("-");
|
|
return pre + this.upcomingInput() + "\n" + c+"^";
|
|
},
|
|
next:function () {
|
|
if (this.done) {
|
|
return this.EOF;
|
|
}
|
|
if (!this._input) this.done = true;
|
|
|
|
var token,
|
|
match,
|
|
col,
|
|
lines;
|
|
if (!this._more) {
|
|
this.yytext = '';
|
|
this.match = '';
|
|
}
|
|
var rules = this._currentRules();
|
|
for (var i=0;i < rules.length; i++) {
|
|
match = this._input.match(this.rules[rules[i]]);
|
|
if (match) {
|
|
lines = match[0].match(/\n.*/g);
|
|
if (lines) this.yylineno += lines.length;
|
|
this.yylloc = {first_line: this.yylloc.last_line,
|
|
last_line: this.yylineno+1,
|
|
first_column: this.yylloc.last_column,
|
|
last_column: lines ? lines[lines.length-1].length-1 : this.yylloc.last_column + match[0].length};
|
|
this.yytext += match[0];
|
|
this.match += match[0];
|
|
this.matches = match;
|
|
this.yyleng = this.yytext.length;
|
|
this._more = false;
|
|
this._input = this._input.slice(match[0].length);
|
|
this.matched += match[0];
|
|
token = this.performAction.call(this, this.yy, this, rules[i],this.conditionStack[this.conditionStack.length-1]);
|
|
if (token) return token;
|
|
else return;
|
|
}
|
|
}
|
|
if (this._input === "") {
|
|
return this.EOF;
|
|
} else {
|
|
this.parseError('Lexical error on line '+(this.yylineno+1)+'. Unrecognized text.\n'+this.showPosition(),
|
|
{text: "", token: null, line: this.yylineno});
|
|
}
|
|
},
|
|
lex:function lex() {
|
|
var r = this.next();
|
|
if (typeof r !== 'undefined') {
|
|
return r;
|
|
} else {
|
|
return this.lex();
|
|
}
|
|
},
|
|
begin:function begin(condition) {
|
|
this.conditionStack.push(condition);
|
|
},
|
|
popState:function popState() {
|
|
return this.conditionStack.pop();
|
|
},
|
|
_currentRules:function _currentRules() {
|
|
return this.conditions[this.conditionStack[this.conditionStack.length-1]].rules;
|
|
},
|
|
topState:function () {
|
|
return this.conditionStack[this.conditionStack.length-2];
|
|
},
|
|
pushState:function begin(condition) {
|
|
this.begin(condition);
|
|
}});
|
|
lexer.performAction = function anonymous(yy,yy_,$avoiding_name_collisions,YY_START) {
|
|
|
|
var YYSTATE=YY_START;
|
|
switch($avoiding_name_collisions) {
|
|
case 0:/* skip whitespace */
|
|
break;
|
|
case 1:return 20
|
|
break;
|
|
case 2:return 19
|
|
break;
|
|
case 3:return 8
|
|
break;
|
|
case 4:return 9
|
|
break;
|
|
case 5:return 6
|
|
break;
|
|
case 6:return 7
|
|
break;
|
|
case 7:return 11
|
|
break;
|
|
case 8:return 13
|
|
break;
|
|
case 9:return 10
|
|
break;
|
|
case 10:return 12
|
|
break;
|
|
case 11:return 14
|
|
break;
|
|
case 12:return 15
|
|
break;
|
|
case 13:return 16
|
|
break;
|
|
case 14:return 17
|
|
break;
|
|
case 15:return 18
|
|
break;
|
|
case 16:return 5
|
|
break;
|
|
case 17:return 'INVALID'
|
|
break;
|
|
}
|
|
};
|
|
lexer.rules = [/^\s+/,/^[0-9]+(\.[0-9]+)?\b/,/^n\b/,/^\|\|/,/^&&/,/^\?/,/^:/,/^<=/,/^>=/,/^</,/^>/,/^!=/,/^==/,/^%/,/^\(/,/^\)/,/^$/,/^./];
|
|
lexer.conditions = {"INITIAL":{"rules":[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17],"inclusive":true}};return lexer;})()
|
|
parser.lexer = lexer;
|
|
return parser;
|
|
})();
|
|
'''
|
|
plural_forms_parser = Jed.PF
|
|
# }}}
|
|
|
|
def _get_plural_forms_function(plural_forms_string):
|
|
return plural_forms_parser.compile(plural_forms_string or "nplurals=2; plural=(n != 1);")
|
|
|
|
_gettext = def(text): return text
|
|
|
|
_ngettext = def(text, plural, n): return text if n is 1 else plural
|
|
|
|
def gettext(text):
|
|
return _gettext(text)
|
|
|
|
def ngettext(text, plural, n):
|
|
return _ngettext(text, plural, n)
|
|
|
|
def install(translation_data):
|
|
t = new Translations(translation_data)
|
|
t.install()
|
|
for func in register_callback.install_callbacks:
|
|
try:
|
|
func(t)
|
|
except:
|
|
pass
|
|
return t
|
|
|
|
has_prop = Object.prototype.hasOwnProperty.call.bind(Object.prototype.hasOwnProperty)
|
|
|
|
def register_callback(func):
|
|
# Register callbacks that will be called when new translation data is
|
|
# installed
|
|
register_callback.install_callbacks.push(func)
|
|
register_callback.install_callbacks = v'[]'
|
|
|
|
empty_translation_data = {'entries': {}}
|
|
|
|
class Translations:
|
|
|
|
def __init__(self, translation_data):
|
|
translation_data = translation_data or empty_translation_data
|
|
func = _get_plural_forms_function(translation_data.plural_forms)
|
|
self.translations = [[translation_data, func]]
|
|
self.language = translation_data['language']
|
|
|
|
def add_fallback(self, fallback):
|
|
fallback = fallback or empty_translation_data
|
|
func = _get_plural_forms_function(fallback.plural_forms)
|
|
self.translations.push([fallback, func])
|
|
|
|
def gettext(self, text):
|
|
for t in self.translations:
|
|
m = t[0].entries
|
|
if has_prop(m, text):
|
|
return m[text][0]
|
|
return text
|
|
|
|
def ngettext(self, text, plural, n):
|
|
for t in self.translations:
|
|
m = t[0].entries
|
|
if has_prop(m, text):
|
|
idx = t[1](n)
|
|
return m[text][idx] or (text if n is 1 else plural)
|
|
return text if n is 1 else plural
|
|
|
|
def install(self):
|
|
nonlocal _gettext, _ngettext
|
|
_gettext = def ():
|
|
return self.gettext.apply(self, arguments)
|
|
_ngettext = def ():
|
|
return self.ngettext.apply(self, arguments)
|