/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */
import * as html from './ast';
import { NGSP_UNICODE } from './entities';
import { ParseTreeResult } from './parser';
export const PRESERVE_WS_ATTR_NAME = 'ngPreserveWhitespaces';
const SKIP_WS_TRIM_TAGS = new Set(['pre', 'template', 'textarea', 'script', 'style']);
// Equivalent to \s with \u00a0 (non-breaking space) excluded.
// Based on https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp
const WS_CHARS = ' \f\n\r\t\v\u1680\u180e\u2000-\u200a\u2028\u2029\u202f\u205f\u3000\ufeff';
const NO_WS_REGEXP = new RegExp(`[^${WS_CHARS}]`);
const WS_REPLACE_REGEXP = new RegExp(`[${WS_CHARS}]{2,}`, 'g');
function hasPreserveWhitespacesAttr(attrs) {
    return attrs.some((attr) => attr.name === PRESERVE_WS_ATTR_NAME);
}
/**
 * &ngsp; is a placeholder for non-removable space
 * &ngsp; is converted to the 0xE500 PUA (Private Use Areas) unicode character
 * and later on replaced by a space.
 */
export function replaceNgsp(value) {
    // lexer is replacing the &ngsp; pseudo-entity with NGSP_UNICODE
    return value.replace(new RegExp(NGSP_UNICODE, 'g'), ' ');
}
/**
 * This visitor can walk HTML parse tree and remove / trim text nodes using the following rules:
 * - consider spaces, tabs and new lines as whitespace characters;
 * - drop text nodes consisting of whitespace characters only;
 * - for all other text nodes replace consecutive whitespace characters with one space;
 * - convert &ngsp; pseudo-entity to a single space;
 *
 * Removal and trimming of whitespaces have positive performance impact (less code to generate
 * while compiling templates, faster view creation). At the same time it can be "destructive"
 * in some cases (whitespaces can influence layout). Because of the potential of breaking layout
 * this visitor is not activated by default in Angular 5 and people need to explicitly opt-in for
 * whitespace removal. The default option for whitespace removal will be revisited in Angular 6
 * and might be changed to "on" by default.
 */
export class WhitespaceVisitor {
    visitElement(element, context) {
        if (SKIP_WS_TRIM_TAGS.has(element.name) || hasPreserveWhitespacesAttr(element.attrs)) {
            // don't descent into elements where we need to preserve whitespaces
            // but still visit all attributes to eliminate one used as a market to preserve WS
            return new html.Element(element.name, html.visitAll(this, element.attrs), element.children, element.sourceSpan, element.startSourceSpan, element.endSourceSpan, element.i18n);
        }
        return new html.Element(element.name, element.attrs, visitAllWithSiblings(this, element.children), element.sourceSpan, element.startSourceSpan, element.endSourceSpan, element.i18n);
    }
    visitAttribute(attribute, context) {
        return attribute.name !== PRESERVE_WS_ATTR_NAME ? attribute : null;
    }
    visitText(text, context) {
        const isNotBlank = text.value.match(NO_WS_REGEXP);
        const hasExpansionSibling = context &&
            (context.prev instanceof html.Expansion || context.next instanceof html.Expansion);
        if (isNotBlank || hasExpansionSibling) {
            // Process the whitespace in the tokens of this Text node
            const tokens = text.tokens.map(token => token.type === 5 /* TokenType.TEXT */ ? createWhitespaceProcessedTextToken(token) : token);
            // Process the whitespace of the value of this Text node
            const value = processWhitespace(text.value);
            return new html.Text(value, text.sourceSpan, tokens, text.i18n);
        }
        return null;
    }
    visitComment(comment, context) {
        return comment;
    }
    visitExpansion(expansion, context) {
        return expansion;
    }
    visitExpansionCase(expansionCase, context) {
        return expansionCase;
    }
    visitBlockGroup(group, context) {
        return new html.BlockGroup(visitAllWithSiblings(this, group.blocks), group.sourceSpan, group.startSourceSpan, group.endSourceSpan);
    }
    visitBlock(block, context) {
        return new html.Block(block.name, block.parameters, visitAllWithSiblings(this, block.children), block.sourceSpan, block.startSourceSpan);
    }
    visitBlockParameter(parameter, context) {
        return parameter;
    }
}
function createWhitespaceProcessedTextToken({ type, parts, sourceSpan }) {
    return { type, parts: [processWhitespace(parts[0])], sourceSpan };
}
function processWhitespace(text) {
    return replaceNgsp(text).replace(WS_REPLACE_REGEXP, ' ');
}
export function removeWhitespaces(htmlAstWithErrors) {
    return new ParseTreeResult(html.visitAll(new WhitespaceVisitor(), htmlAstWithErrors.rootNodes), htmlAstWithErrors.errors);
}
function visitAllWithSiblings(visitor, nodes) {
    const result = [];
    nodes.forEach((ast, i) => {
        const context = { prev: nodes[i - 1], next: nodes[i + 1] };
        const astResult = ast.visit(visitor, context);
        if (astResult) {
            result.push(astResult);
        }
    });
    return result;
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"html_whitespaces.js","sourceRoot":"","sources":["../../../../../../../packages/compiler/src/ml_parser/html_whitespaces.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAEH,OAAO,KAAK,IAAI,MAAM,OAAO,CAAC;AAC9B,OAAO,EAAC,YAAY,EAAC,MAAM,YAAY,CAAC;AACxC,OAAO,EAAC,eAAe,EAAC,MAAM,UAAU,CAAC;AAGzC,MAAM,CAAC,MAAM,qBAAqB,GAAG,uBAAuB,CAAC;AAE7D,MAAM,iBAAiB,GAAG,IAAI,GAAG,CAAC,CAAC,KAAK,EAAE,UAAU,EAAE,UAAU,EAAE,QAAQ,EAAE,OAAO,CAAC,CAAC,CAAC;AAEtF,8DAA8D;AAC9D,mGAAmG;AACnG,MAAM,QAAQ,GAAG,0EAA0E,CAAC;AAC5F,MAAM,YAAY,GAAG,IAAI,MAAM,CAAC,KAAK,QAAQ,GAAG,CAAC,CAAC;AAClD,MAAM,iBAAiB,GAAG,IAAI,MAAM,CAAC,IAAI,QAAQ,OAAO,EAAE,GAAG,CAAC,CAAC;AAE/D,SAAS,0BAA0B,CAAC,KAAuB;IACzD,OAAO,KAAK,CAAC,IAAI,CAAC,CAAC,IAAoB,EAAE,EAAE,CAAC,IAAI,CAAC,IAAI,KAAK,qBAAqB,CAAC,CAAC;AACnF,CAAC;AAED;;;;GAIG;AACH,MAAM,UAAU,WAAW,CAAC,KAAa;IACvC,gEAAgE;IAChE,OAAO,KAAK,CAAC,OAAO,CAAC,IAAI,MAAM,CAAC,YAAY,EAAE,GAAG,CAAC,EAAE,GAAG,CAAC,CAAC;AAC3D,CAAC;AAED;;;;;;;;;;;;;GAaG;AACH,MAAM,OAAO,iBAAiB;IAC5B,YAAY,CAAC,OAAqB,EAAE,OAAY;QAC9C,IAAI,iBAAiB,CAAC,GAAG,CAAC,OAAO,CAAC,IAAI,CAAC,IAAI,0BAA0B,CAAC,OAAO,CAAC,KAAK,CAAC,EAAE;YACpF,oEAAoE;YACpE,kFAAkF;YAClF,OAAO,IAAI,IAAI,CAAC,OAAO,CACnB,OAAO,CAAC,IAAI,EAAE,IAAI,CAAC,QAAQ,CAAC,IAAI,EAAE,OAAO,CAAC,KAAK,CAAC,EAAE,OAAO,CAAC,QAAQ,EAAE,OAAO,CAAC,UAAU,EACtF,OAAO,CAAC,eAAe,EAAE,OAAO,CAAC,aAAa,EAAE,OAAO,CAAC,IAAI,CAAC,CAAC;SACnE;QAED,OAAO,IAAI,IAAI,CAAC,OAAO,CACnB,OAAO,CAAC,IAAI,EAAE,OAAO,CAAC,KAAK,EAAE,oBAAoB,CAAC,IAAI,EAAE,OAAO,CAAC,QAAQ,CAAC,EACzE,OAAO,CAAC,UAAU,EAAE,OAAO,CAAC,eAAe,EAAE,OAAO,CAAC,aAAa,EAAE,OAAO,CAAC,IAAI,CAAC,CAAC;IACxF,CAAC;IAED,cAAc,CAAC,SAAyB,EAAE,OAAY;QACpD,OAAO,SAAS,CAAC,IAAI,KAAK,qBAAqB,CAAC,CAAC,CAAC,SAAS,CAAC,CAAC,CAAC,IAAI,CAAC;IACrE,CAAC;IAED,SAAS,CAAC,IAAe,EAAE,OAAmC;QAC5D,MAAM,UAAU,GAAG,IAAI,CAAC,KAAK,CAAC,KAAK,CAAC,YAAY,CAAC,CAAC;QAClD,MAAM,mBAAmB,GAAG,OAAO;YAC/B,CAAC,OAAO,CAAC,IAAI,YAAY,IAAI,CAAC,SAAS,IAAI,OAAO,CAAC,IAAI,YAAY,IAAI,CAAC,SAAS,CAAC,CAAC;QAEvF,IAAI,UAAU,IAAI,mBAAmB,EAAE;YACrC,yDAAyD;YACzD,MAAM,MAAM,GAAG,IAAI,CAAC,MAAM,CAAC,GAAG,CAC1B,KAAK,CAAC,EAAE,CACJ,KAAK,CAAC,IAAI,2BAAmB,CAAC,CAAC,CAAC,kCAAkC,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC,KAAK,CAAC,CAAC;YAC3F,wDAAwD;YACxD,MAAM,KAAK,GAAG,iBAAiB,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;YAC5C,OAAO,IAAI,IAAI,CAAC,IAAI,CAAC,KAAK,EAAE,IAAI,CAAC,UAAU,EAAE,MAAM,EAAE,IAAI,CAAC,IAAI,CAAC,CAAC;SACjE;QAED,OAAO,IAAI,CAAC;IACd,CAAC;IAED,YAAY,CAAC,OAAqB,EAAE,OAAY;QAC9C,OAAO,OAAO,CAAC;IACjB,CAAC;IAED,cAAc,CAAC,SAAyB,EAAE,OAAY;QACpD,OAAO,SAAS,CAAC;IACnB,CAAC;IAED,kBAAkB,CAAC,aAAiC,EAAE,OAAY;QAChE,OAAO,aAAa,CAAC;IACvB,CAAC;IAED,eAAe,CAAC,KAAsB,EAAE,OAAY;QAClD,OAAO,IAAI,IAAI,CAAC,UAAU,CACtB,oBAAoB,CAAC,IAAI,EAAE,KAAK,CAAC,MAAM,CAAC,EAAE,KAAK,CAAC,UAAU,EAAE,KAAK,CAAC,eAAe,EACjF,KAAK,CAAC,aAAa,CAAC,CAAC;IAC3B,CAAC;IAED,UAAU,CAAC,KAAiB,EAAE,OAAY;QACxC,OAAO,IAAI,IAAI,CAAC,KAAK,CACjB,KAAK,CAAC,IAAI,EAAE,KAAK,CAAC,UAAU,EAAE,oBAAoB,CAAC,IAAI,EAAE,KAAK,CAAC,QAAQ,CAAC,EAAE,KAAK,CAAC,UAAU,EAC1F,KAAK,CAAC,eAAe,CAAC,CAAC;IAC7B,CAAC;IAED,mBAAmB,CAAC,SAA8B,EAAE,OAAY;QAC9D,OAAO,SAAS,CAAC;IACnB,CAAC;CACF;AAED,SAAS,kCAAkC,CAAC,EAAC,IAAI,EAAE,KAAK,EAAE,UAAU,EAAY;IAC9E,OAAO,EAAC,IAAI,EAAE,KAAK,EAAE,CAAC,iBAAiB,CAAC,KAAK,CAAC,CAAC,CAAC,CAAC,CAAC,EAAE,UAAU,EAAC,CAAC;AAClE,CAAC;AAED,SAAS,iBAAiB,CAAC,IAAY;IACrC,OAAO,WAAW,CAAC,IAAI,CAAC,CAAC,OAAO,CAAC,iBAAiB,EAAE,GAAG,CAAC,CAAC;AAC3D,CAAC;AAED,MAAM,UAAU,iBAAiB,CAAC,iBAAkC;IAClE,OAAO,IAAI,eAAe,CACtB,IAAI,CAAC,QAAQ,CAAC,IAAI,iBAAiB,EAAE,EAAE,iBAAiB,CAAC,SAAS,CAAC,EACnE,iBAAiB,CAAC,MAAM,CAAC,CAAC;AAChC,CAAC;AAOD,SAAS,oBAAoB,CAAC,OAA0B,EAAE,KAAkB;IAC1E,MAAM,MAAM,GAAU,EAAE,CAAC;IAEzB,KAAK,CAAC,OAAO,CAAC,CAAC,GAAG,EAAE,CAAC,EAAE,EAAE;QACvB,MAAM,OAAO,GAA0B,EAAC,IAAI,EAAE,KAAK,CAAC,CAAC,GAAG,CAAC,CAAC,EAAE,IAAI,EAAE,KAAK,CAAC,CAAC,GAAG,CAAC,CAAC,EAAC,CAAC;QAChF,MAAM,SAAS,GAAG,GAAG,CAAC,KAAK,CAAC,OAAO,EAAE,OAAO,CAAC,CAAC;QAC9C,IAAI,SAAS,EAAE;YACb,MAAM,CAAC,IAAI,CAAC,SAAS,CAAC,CAAC;SACxB;IACH,CAAC,CAAC,CAAC;IACH,OAAO,MAAM,CAAC;AAChB,CAAC","sourcesContent":["/**\n * @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\nimport * as html from './ast';\nimport {NGSP_UNICODE} from './entities';\nimport {ParseTreeResult} from './parser';\nimport {TextToken, TokenType} from './tokens';\n\nexport const PRESERVE_WS_ATTR_NAME = 'ngPreserveWhitespaces';\n\nconst SKIP_WS_TRIM_TAGS = new Set(['pre', 'template', 'textarea', 'script', 'style']);\n\n// Equivalent to \\s with \\u00a0 (non-breaking space) excluded.\n// Based on https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp\nconst WS_CHARS = ' \\f\\n\\r\\t\\v\\u1680\\u180e\\u2000-\\u200a\\u2028\\u2029\\u202f\\u205f\\u3000\\ufeff';\nconst NO_WS_REGEXP = new RegExp(`[^${WS_CHARS}]`);\nconst WS_REPLACE_REGEXP = new RegExp(`[${WS_CHARS}]{2,}`, 'g');\n\nfunction hasPreserveWhitespacesAttr(attrs: html.Attribute[]): boolean {\n  return attrs.some((attr: html.Attribute) => attr.name === PRESERVE_WS_ATTR_NAME);\n}\n\n/**\n * &ngsp; is a placeholder for non-removable space\n * &ngsp; is converted to the 0xE500 PUA (Private Use Areas) unicode character\n * and later on replaced by a space.\n */\nexport function replaceNgsp(value: string): string {\n  // lexer is replacing the &ngsp; pseudo-entity with NGSP_UNICODE\n  return value.replace(new RegExp(NGSP_UNICODE, 'g'), ' ');\n}\n\n/**\n * This visitor can walk HTML parse tree and remove / trim text nodes using the following rules:\n * - consider spaces, tabs and new lines as whitespace characters;\n * - drop text nodes consisting of whitespace characters only;\n * - for all other text nodes replace consecutive whitespace characters with one space;\n * - convert &ngsp; pseudo-entity to a single space;\n *\n * Removal and trimming of whitespaces have positive performance impact (less code to generate\n * while compiling templates, faster view creation). At the same time it can be \"destructive\"\n * in some cases (whitespaces can influence layout). Because of the potential of breaking layout\n * this visitor is not activated by default in Angular 5 and people need to explicitly opt-in for\n * whitespace removal. The default option for whitespace removal will be revisited in Angular 6\n * and might be changed to \"on\" by default.\n */\nexport class WhitespaceVisitor implements html.Visitor {\n  visitElement(element: html.Element, context: any): any {\n    if (SKIP_WS_TRIM_TAGS.has(element.name) || hasPreserveWhitespacesAttr(element.attrs)) {\n      // don't descent into elements where we need to preserve whitespaces\n      // but still visit all attributes to eliminate one used as a market to preserve WS\n      return new html.Element(\n          element.name, html.visitAll(this, element.attrs), element.children, element.sourceSpan,\n          element.startSourceSpan, element.endSourceSpan, element.i18n);\n    }\n\n    return new html.Element(\n        element.name, element.attrs, visitAllWithSiblings(this, element.children),\n        element.sourceSpan, element.startSourceSpan, element.endSourceSpan, element.i18n);\n  }\n\n  visitAttribute(attribute: html.Attribute, context: any): any {\n    return attribute.name !== PRESERVE_WS_ATTR_NAME ? attribute : null;\n  }\n\n  visitText(text: html.Text, context: SiblingVisitorContext|null): any {\n    const isNotBlank = text.value.match(NO_WS_REGEXP);\n    const hasExpansionSibling = context &&\n        (context.prev instanceof html.Expansion || context.next instanceof html.Expansion);\n\n    if (isNotBlank || hasExpansionSibling) {\n      // Process the whitespace in the tokens of this Text node\n      const tokens = text.tokens.map(\n          token =>\n              token.type === TokenType.TEXT ? createWhitespaceProcessedTextToken(token) : token);\n      // Process the whitespace of the value of this Text node\n      const value = processWhitespace(text.value);\n      return new html.Text(value, text.sourceSpan, tokens, text.i18n);\n    }\n\n    return null;\n  }\n\n  visitComment(comment: html.Comment, context: any): any {\n    return comment;\n  }\n\n  visitExpansion(expansion: html.Expansion, context: any): any {\n    return expansion;\n  }\n\n  visitExpansionCase(expansionCase: html.ExpansionCase, context: any): any {\n    return expansionCase;\n  }\n\n  visitBlockGroup(group: html.BlockGroup, context: any): any {\n    return new html.BlockGroup(\n        visitAllWithSiblings(this, group.blocks), group.sourceSpan, group.startSourceSpan,\n        group.endSourceSpan);\n  }\n\n  visitBlock(block: html.Block, context: any): any {\n    return new html.Block(\n        block.name, block.parameters, visitAllWithSiblings(this, block.children), block.sourceSpan,\n        block.startSourceSpan);\n  }\n\n  visitBlockParameter(parameter: html.BlockParameter, context: any) {\n    return parameter;\n  }\n}\n\nfunction createWhitespaceProcessedTextToken({type, parts, sourceSpan}: TextToken): TextToken {\n  return {type, parts: [processWhitespace(parts[0])], sourceSpan};\n}\n\nfunction processWhitespace(text: string): string {\n  return replaceNgsp(text).replace(WS_REPLACE_REGEXP, ' ');\n}\n\nexport function removeWhitespaces(htmlAstWithErrors: ParseTreeResult): ParseTreeResult {\n  return new ParseTreeResult(\n      html.visitAll(new WhitespaceVisitor(), htmlAstWithErrors.rootNodes),\n      htmlAstWithErrors.errors);\n}\n\ninterface SiblingVisitorContext {\n  prev: html.Node|undefined;\n  next: html.Node|undefined;\n}\n\nfunction visitAllWithSiblings(visitor: WhitespaceVisitor, nodes: html.Node[]): any[] {\n  const result: any[] = [];\n\n  nodes.forEach((ast, i) => {\n    const context: SiblingVisitorContext = {prev: nodes[i - 1], next: nodes[i + 1]};\n    const astResult = ast.visit(visitor, context);\n    if (astResult) {\n      result.push(astResult);\n    }\n  });\n  return result;\n}\n"]}