khufu/lib/grammar.js

A template language for incremental-dom or DSL for javascript views

'use strict';

Object.defineProperty(exports, "__esModule", {
    value: true
});
exports.parser = undefined;

var _jison = require('jison');

var _lexer = require('./lexer');

var _lexer2 = _interopRequireDefault(_lexer);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var statement;

function list(item) {
    return [[item + ' ' + item + 's', "$$ = add_location(@$, [$1].concat($2));"], ["", "$$ = [];"]];
}

function add_location(info, node) {
    Object.defineProperty(node, '_location', { value: info, enumerable: false });
    return node;
}
function node(info) {
    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
        args[_key - 1] = arguments[_key];
    }

    return add_location(info, args);
}

var parser = exports.parser = new _jison.Parser({
    actionInclude: node.toString() + add_location.toString(),
    "operators": [["left", "?"], ["left", "or"], ["left", "and"], ["left", "not"], ["left", "==", "!=", "===", "!=="], ["left", ">", "<", "<=", ">="], ["left", "+", "-"], ["left", "*", "/", "%"], ["left", "^"], ["left", "(", ".", "["], ["left", "UNARY"], ["left", "TEMPLATE_BEGIN", "TEMPLATE_END", "TEMPLATE_INTER"]],
    "start": "file",
    "bnf": {
        "file": [["blocks EOF", "return $1;"], ["NL blocks EOF", "return $2;"]],
        "blocks": list('block'),
        "block": [["import { impnames } from STRING NL", "$$ = node(@$, 'import_names', $3, $6);"], ["import IDENT from STRING NL", "$$ = node(@$, 'import_default', $2, $4);"], ["import * as IDENT from STRING NL", "$$ = node(@$, 'import_namespace', $4, $6);"], ["style : NL INDENT styleitems DEDENT", "$$ = node(@$, 'style', $5);"], ["style : NL", "$$ = node(@$, 'style', [])"], ["view func_name ( args ) { kwargs } : NL stmtblock", "$$ = node(@$, 'view', $2, $4, $7, $11)"], ["view func_name ( args ) : NL stmtblock", "$$ = node(@$, 'view', $2, $4, [], $8)"]],
        "func_name": [["IDENT", "$1"], ["IDENT . IDENT", "$$ = $1 + '.' + $3"]],
        "impnames": [["IDENT , impnames", "$$ = [[$1, $1]].concat($3);"], ["STORE , impnames", "$$ = [['@' + $1, '@' + $1]].concat($3);"], ["IDENT as IDENT , impnames", "$$ = [[$1, $3]].concat($5);"], ["STORE as STORE , impnames", "$$ = [['@' + $1, '@' + $3]].concat($5);"], ["IDENT", "$$ = node(@$, [$1, $1]);"], ["STORE", "$$ = node(@$, ['@' + $1, '@' + $1]);"], ["IDENT as IDENT", "$$ = [[$1, $3]];"], ["STORE as STORE", "$$ = [['@' + $1, '@' + $3]];"]],
        // CSS
        "styleitems": [["styleitem styleitems", "$$ = [$1].concat($2);"], ["", "$$ = [];"]],
        "rules": [["rule rules", "$$ = [$1].concat($2);"], ["", "$$ = [];"]],
        "styleitem": [["MEDIA media_queries NL INDENT rules DEDENT", "$$ = node(@$, 'media', $2, $5)"], ["MEDIA media_queries NL", "$$ = node(@$, 'media', $2, [])"], ["rule", "$$ = $1"]],
        "rule": [["selectors NL INDENT properties DEDENT", "$$ = node(@$, 'rule', $1, $4)"], ["selectors NL", "$$ = node(@$, 'rule', $1, [])"]],
        "media_queries": [["media_query , media_queries", "$$ = $1 + ', ' + $3"], ["media_query", "$$ = $1"]],
        "media_query": [["IDENT_TOKEN", "$$ = $1"], ["( media_query )", "$$ = '(' + $1 + ')'"], ["( IDENT_TOKEN : css_item )", "$$ = '(' + $2 + ': ' + $4 + ')'"], ["media_query and media_query", "$$ = $1 + ' and ' + $3"]],
        "selectors": [["selector", "$$ = [$1]"], ["selector , selectors", "$$ = [$1].concat($3)"]],
        "selector": [["IDENT_TOKEN", "$$ = $1;"], ["css_classes", "$$ = $1;"], ["IDENT_TOKEN css_classes", "$$ = $1 + $2;"]],
        "css_classes": [[". IDENT_TOKEN", "$$ = '.' +$2"], [": IDENT_TOKEN", "$$ = ':' +$2"], [". IDENT_TOKEN css_classes", "$$ = '.' + $2 + $3"], [": IDENT_TOKEN css_classes", "$$ = ':' + $2 + $3"]],
        "properties": [["property properties", "$$ = [$1].concat($2);"], ["", "$$ = [];"]],
        "property": [["IDENT_TOKEN : property_value", "$$ = node(@$, 'property', $1, $3)"]],
        "property_value": [["NL", "$$ = '';"], ["NL INDENT css_lines DEDENT", "$$ = $3"], ["css_value NL", "$$ = $1;"], ["css_value NL INDENT css_lines DEDENT", "$$ = $1 + ' ' + $4"]],
        "css_lines": [["css_value NL", "$$ = $1"], ["css_value NL css_lines", "$$ = $1 + ' ' + $3"]],
        "css_value": [["css_item", "$$ = $1;"], ["css_item ,", "$$ = $1 + ',';"], ["css_item css_value", "$$ = $1 + ' ' + $2"], ["css_item , css_value", "$$ = $1 + ', ' + $3"]],
        "css_item": [["IDENT_TOKEN", "$$ = $1"], ["PERCENTAGE_TOKEN", "$$ = $1"], ["HASH_TOKEN", "$$ = $1"], ["URL", "$$ = $1"], ["CSS_STRING", "$$ = $1"], ["DIMENSION", "$$ = $1"], ["NUMBER", "$$ = $1"], ["css_item ( css_value ) ", "$$ = $1 + '(' + $3 + ')'"]],
        // HTML
        "assign_tgt": [["IDENT", "$$ = ['name', $1];"], ["STORE", "$$ = ['store', $1];"], ["complex_assign_tgt", "$$ = $1;"]],
        "complex_assign_tgt": [["[ tgt_list ]", "$$ = ['unpack_list', $2];"], ["{ tgt_map }", "$$ = ['unpack_map', $2];"]],
        "arg_def": [["assign_tgt", "$$ = $1;"]],
        "tgt_list": [["assign_tgt , tgt_list", "$$ = [$1].concat($3);"], ["assign_tgt", "$$ = [$1];"], ["", "$$ = [];"]],
        "tgt_map": [["IDENT , tgt_map", "$$ = [[$1, ['name', $1]]].concat($3);"], ["IDENT", "$$ = [[$1, ['name', $1]]];"], ["IDENT : assign_tgt , tgt_map", "$$ = [[$1, $3]].concat($5);"], ["IDENT : assign_tgt", "$$ = [[$1, $3]];"], ["", "$$ = [];"]],
        "args": [["arg_def , args", "$$ = [$1].concat($3);"], ["arg_def", "$$ = [$1];"], ["", "$$ = [];"]],
        "kwargs": [["IDENT , kwargs", "$$ = [['name', $1]].concat($3);"], ["IDENT", "$$ = [['name', $1]];"], ["", "$$ = [];"]],
        "stmtblock": [["INDENT statements DEDENT", "$$ = $2"], ["", "$$ = []"]],
        "statements": list('statement'),
        "elstatements": list('elstatement'),
        "statement": [["< TAG_NAME classes attributes > NL", "$$ = node(@$, 'element', $2, $3, $4, []);"], ["< TAG_NAME classes attributes > simplevalue NL", "$$ = node(@$, 'element', $2, $3, $4, " + "[['expression', $6]]);"], ["< TAG_NAME classes attributes > NL INDENT elstatements DEDENT", "$$ = node(@$, 'element', $2, $3, $4, $8);"], ["let assign_tgt = expr NL", "$$ = node(@$, 'assign', $2, $4)"], ["if let assign_tgt = expr : NL stmtblock elifblocks", "$$ = node(@$, 'if', [['let', $3, $5], $8], $9)"], ["if let assign_tgt = expr : NL stmtblock elifblocks elseblock", "$$ = node(@$, 'if', [['let', $3, $5], $8], $9, $10)"], ["if expr : NL stmtblock elifblocks", "$$ = node(@$, 'if', [$2, $5], $6)"], ["if expr : NL stmtblock elifblocks elseblock", "$$ = node(@$, 'if', [$2, $5], $6, $7)"], ["for IDENT of expr : NL stmtblock", "$$ = node(@$, 'for', ['name', $2], $4, ['name', $2], $7)"], ["for IDENT of expr key expr : NL stmtblock", "$$ = node(@$, 'for', ['name', $2], $4, $6, $9)"], ["for complex_assign_tgt of expr key expr : NL stmtblock", "$$ = node(@$, 'for', $2, $4, $6, $9)"], ["catch * expr -> STORE : NL stmtblock", "$$ = node(@$, 'catch', '*', $3, ['store', $5], $8);"], ["expr NL INDENT statements DEDENT", "$$ = node(@$, 'block_call', $1, [['body', $4]]);"], ["expr : NL INDENT subblocks DEDENT", "$$ = node(@$, 'block_call', $1, $5);"], ["expr NL", "$$ = node(@$, 'expression', $1);"]],
        "subblocks": list('subblock'),
        "subblock": [["IDENT : NL stmtblock", "$$ = node(@$, $1, $4);"], ["IDENT : simplevalue NL", "$$ = node(@$, $1, [['expression', $3]]);"]],
        "classes": list('classe'),
        "classe": [[". TAG_NAME", "$$ = [$2];"], [". TAG_NAME ? ( expr )", "$$ = [$2, $5];"]],
        "elifblocks": list('elifblock'),
        "elifblock": [["elif let assign_tgt = expr : NL stmtblock", "$$ = [['let', $3, $5], $8]"], ["elif expr : NL stmtblock", "$$ = [$2, $5]"]],
        "elseblock": [["else : NL stmtblock", "$$ = $4;"]],
        "elstatement": [["statement", "$$ = $1;"],
        // TODO(tailhook) support other targets than stores
        ["link { linknames } expr -> STORE NL", "$$ = node(@$, 'link', $3, $5, ['store', $7]);"], ["store STORE = expr row_enhancers NL", "$$ = node(@$, 'store', $2, $4, $5)"], ["store STORE = expr row_enhancers NL INDENT col_enhancers DEDENT", "$$ = node(@$, 'store', $2, $4, $5.concat($8))"]],
        "row_enhancers": list('row_enhancer'),
        "col_enhancers": list('col_enhancer'),
        "row_enhancer": [["| expr", "$$ = $2"]],
        "col_enhancer": [["| expr NL", "$$ = $2"]],
        "attributes": list('attribute'),
        "attribute": [["TAG_NAME = attrvalue", "$$ = [$1, $3];"], ["TAG_NAME", "$$ = [$1];"]],
        "attrvalue": [// This is similar to simplevalue but IDENT = TAG_NAME
        ["NUMBER", "$$ = node(@$, 'number', $1);"], ["- NUMBER", "$$ = node(@$, 'number', '-' + $2)"], ["+ NUMBER", "$$ = node(@$, 'number', '+' + $2)"], ["STRING", "$$ = node(@$, 'string', $1);"], ["TAG_NAME", "$$ = node(@$, 'name', $1);"], ["STORE", "$$ = node(@$, 'store', $1);"], ["attrvalue . TAG_NAME", "$$ = node(@$, 'attr', $1, $3);"], ["( expr )", "$$ = $2;"], ["{ object_entries }", "$$ = node(@$, 'object', $2);"], ["attrvalue ( comma_separated )", "$$ = node(@$, 'call', $1, $3);"], ["template", "$$ = node(@$, 'template', $1);"]],
        "simplevalue": [// This is similar to attrvalue but TAG_NAME = IDENT
        ["NUMBER", "$$ = node(@$, 'number', $1);"], ["- NUMBER", "$$ = node(@$, 'number', '-' + $2)"], ["+ NUMBER", "$$ = node(@$, 'number', '+' + $2)"], ["STRING", "$$ = node(@$, 'string', $1);"], ["IDENT", "$$ = node(@$, 'name', $1);"], ["STORE", "$$ = node(@$, 'store', $1);"], ["simplevalue . IDENT", "$$ = node(@$, 'attr', $1, $3);"], ["( expr )", "$$ = $2;"], ["{ object_entries }", "$$ = node(@$, 'object', $2);"], ["simplevalue ( comma_separated )", "$$ = node(@$, 'call', $1, $3);"], ["template", "$$ = node(@$, 'template', $1);"]],
        "linknames": [["IDENT , linknames", "$$ = [$1].concat($3);"], ["IDENT", "$$ = [$1];"]],
        "comma_separated": [["expr , comma_separated", "$$ = [$1].concat($3);"], ["expr", "$$ = [$1];"], ["", "$$ = [];"]],
        "object_entries": [["IDENT : expr , object_entries", "$$ = [[$1, $3]].concat($5);"], ["IDENT , object_entries", "$$ = [[$1, ['name', $1]]].concat($3);"], ["STRING : expr , object_entries", "$$ = [[$1, $3]].concat($5);"], ["IDENT : expr", "$$ = [[$1, $3]];"], ["IDENT", "$$ = [[$1, ['name', $1]]];"], ["STRING : expr", "$$ = [[$1, $3]];"], ["", "$$ = [];"]],
        "template": [["TEMPLATE_BEGIN template_pair TEMPLATE_END", "$$ = [['const', $1]].concat($2).concat([['const', $3]])"], ["TEMPLATE_STRING", "$$ = [['const', $1]]"]],
        "template_pair": [["expr", "$$ = [['expr', $1]]"], ["expr TEMPLATE_INTER template_pair", "$$ = [['expr', $1], ['const', $2]].concat($3)"]],
        "expr": [["e", "$$ = $1"], ["e template", "$$ = node(@$, 'apply_template', $1, $2);"]],
        "e": [["e ? e : e", "$$ = node(@$, 'ternary', $1, $3, $5);"], ["e and e", "$$ = node(@$, 'logop', '&&', $1, $3);"], ["e or e", "$$ = node(@$, 'logop', '||', $1, $3);"], ["e + e", "$$ = node(@$, 'binop', '+', $1, $3);"], ["e - e", "$$ = node(@$, 'binop', '-', $1, $3);"], ["e * e", "$$ = node(@$, 'binop', '*', $1, $3);"], ["e / e", "$$ = node(@$, 'binop', '/', $1, $3);"], ["e % e", "$$ = node(@$, 'binop', '%', $1, $3);"], ["e == e", "$$ = node(@$, 'binop', '==', $1, $3);"], ["e != e", "$$ = node(@$, 'binop', '!=', $1, $3);"], ["e === e", "$$ = node(@$, 'binop', '===', $1, $3);"], ["e !== e", "$$ = node(@$, 'binop', '!==', $1, $3);"], ["e > e", "$$ = node(@$, 'binop', '>', $1, $3);"], ["e < e", "$$ = node(@$, 'binop', '<', $1, $3);"], ["e >= e", "$$ = node(@$, 'binop', '>=', $1, $3);"], ["e <= e", "$$ = node(@$, 'binop', '<=', $1, $3);"], ["e ^ e", "$$ = node(@$, 'binop', '**', $1, $3);"], ["-> STORE", "$$ = node(@$, 'raw_store', $2);", { "prec": "UNARY" }], ["- e", "$$ = node(@$, 'unary', '-', $2);", { "prec": "UNARY" }], ["+ e", "$$ = node(@$, 'unary', '+', $2);", { "prec": "UNARY" }], ["not e", "$$ = node(@$, 'unary', '!', $2);"], ["( e )", "$$ = $2;"], ["{ object_entries }", "$$ = node(@$, 'object', $2);"], ["e ( comma_separated )", "$$ = node(@$, 'call', $1, $3);"], ["e [ e ]", "$$ = node(@$, 'index', $1, $3);"], ["e . IDENT", "$$ = node(@$, 'attr', $1, $3);"], ["[ comma_separated ]", "$$ = node(@$, 'list', $2);"], ["template", "$$ = node(@$, 'template', $1);"], ["NUMBER", "$$ = node(@$, 'number', $1);"], ["STRING", "$$ = node(@$, 'string', $1);"], ["IDENT", "$$ = node(@$, 'name', $1);"], ["STORE", "$$ = node(@$, 'store', $1);"]]
    }
});

parser.lexer = new _lexer2.default();