@angular/compiler
Version:
Angular - the compiler library
96 lines • 12.4 kB
JavaScript
/**
* @license
* Copyright Google Inc. 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
*/
/**
* Parses string representation of a style and converts it into object literal.
*
* @param value string representation of style as used in the `style` attribute in HTML.
* Example: `color: red; height: auto`.
* @returns an object literal. `{ color: 'red', height: 'auto'}`.
*/
export function parseStyle(value) {
var styles = {};
var i = 0;
var parenDepth = 0;
var quote = 0 /* QuoteNone */;
var valueStart = 0;
var propStart = 0;
var currentProp = null;
var valueHasQuotes = false;
while (i < value.length) {
var token = value.charCodeAt(i++);
switch (token) {
case 40 /* OpenParen */:
parenDepth++;
break;
case 41 /* CloseParen */:
parenDepth--;
break;
case 39 /* QuoteSingle */:
// valueStart needs to be there since prop values don't
// have quotes in CSS
valueHasQuotes = valueHasQuotes || valueStart > 0;
if (quote === 0 /* QuoteNone */) {
quote = 39 /* QuoteSingle */;
}
else if (quote === 39 /* QuoteSingle */ && value.charCodeAt(i - 1) !== 92 /* BackSlash */) {
quote = 0 /* QuoteNone */;
}
break;
case 34 /* QuoteDouble */:
// same logic as above
valueHasQuotes = valueHasQuotes || valueStart > 0;
if (quote === 0 /* QuoteNone */) {
quote = 34 /* QuoteDouble */;
}
else if (quote === 34 /* QuoteDouble */ && value.charCodeAt(i - 1) !== 92 /* BackSlash */) {
quote = 0 /* QuoteNone */;
}
break;
case 58 /* Colon */:
if (!currentProp && parenDepth === 0 && quote === 0 /* QuoteNone */) {
currentProp = hyphenate(value.substring(propStart, i - 1).trim());
valueStart = i;
}
break;
case 59 /* Semicolon */:
if (currentProp && valueStart > 0 && parenDepth === 0 && quote === 0 /* QuoteNone */) {
var styleVal = value.substring(valueStart, i - 1).trim();
styles[currentProp] = valueHasQuotes ? stripUnnecessaryQuotes(styleVal) : styleVal;
propStart = i;
valueStart = 0;
currentProp = null;
valueHasQuotes = false;
}
break;
}
}
if (currentProp && valueStart) {
var styleVal = value.substr(valueStart).trim();
styles[currentProp] = valueHasQuotes ? stripUnnecessaryQuotes(styleVal) : styleVal;
}
return styles;
}
export function stripUnnecessaryQuotes(value) {
var qS = value.charCodeAt(0);
var qE = value.charCodeAt(value.length - 1);
if (qS == qE && (qS == 39 /* QuoteSingle */ || qS == 34 /* QuoteDouble */)) {
var tempValue = value.substring(1, value.length - 1);
// special case to avoid using a multi-quoted string that was just chomped
// (e.g. `font-family: "Verdana", "sans-serif"`)
if (tempValue.indexOf('\'') == -1 && tempValue.indexOf('"') == -1) {
value = tempValue;
}
}
return value;
}
export function hyphenate(value) {
return value.replace(/[a-z][A-Z]/g, function (v) {
return v.charAt(0) + '-' + v.charAt(1);
}).toLowerCase();
}
//# sourceMappingURL=data:application/json;base64,{"version":3,"file":"styling.js","sourceRoot":"","sources":["../../../../../../../../../../../packages/compiler/src/render3/view/styling.ts"],"names":[],"mappings":"AAAA;;;;;;GAMG;AAcH;;;;;;GAMG;AACH,MAAM,qBAAqB,KAAa;IACtC,IAAM,MAAM,GAAyB,EAAE,CAAC;IAExC,IAAI,CAAC,GAAG,CAAC,CAAC;IACV,IAAI,UAAU,GAAG,CAAC,CAAC;IACnB,IAAI,KAAK,oBAAuB,CAAC;IACjC,IAAI,UAAU,GAAG,CAAC,CAAC;IACnB,IAAI,SAAS,GAAG,CAAC,CAAC;IAClB,IAAI,WAAW,GAAgB,IAAI,CAAC;IACpC,IAAI,cAAc,GAAG,KAAK,CAAC;IAC3B,OAAO,CAAC,GAAG,KAAK,CAAC,MAAM,EAAE;QACvB,IAAM,KAAK,GAAG,KAAK,CAAC,UAAU,CAAC,CAAC,EAAE,CAAS,CAAC;QAC5C,QAAQ,KAAK,EAAE;YACb;gBACE,UAAU,EAAE,CAAC;gBACb,MAAM;YACR;gBACE,UAAU,EAAE,CAAC;gBACb,MAAM;YACR;gBACE,uDAAuD;gBACvD,qBAAqB;gBACrB,cAAc,GAAG,cAAc,IAAI,UAAU,GAAG,CAAC,CAAC;gBAClD,IAAI,KAAK,sBAAmB,EAAE;oBAC5B,KAAK,uBAAmB,CAAC;iBAC1B;qBAAM,IAAI,KAAK,yBAAqB,IAAI,KAAK,CAAC,UAAU,CAAC,CAAC,GAAG,CAAC,CAAC,uBAAmB,EAAE;oBACnF,KAAK,oBAAiB,CAAC;iBACxB;gBACD,MAAM;YACR;gBACE,sBAAsB;gBACtB,cAAc,GAAG,cAAc,IAAI,UAAU,GAAG,CAAC,CAAC;gBAClD,IAAI,KAAK,sBAAmB,EAAE;oBAC5B,KAAK,uBAAmB,CAAC;iBAC1B;qBAAM,IAAI,KAAK,yBAAqB,IAAI,KAAK,CAAC,UAAU,CAAC,CAAC,GAAG,CAAC,CAAC,uBAAmB,EAAE;oBACnF,KAAK,oBAAiB,CAAC;iBACxB;gBACD,MAAM;YACR;gBACE,IAAI,CAAC,WAAW,IAAI,UAAU,KAAK,CAAC,IAAI,KAAK,sBAAmB,EAAE;oBAChE,WAAW,GAAG,SAAS,CAAC,KAAK,CAAC,SAAS,CAAC,SAAS,EAAE,CAAC,GAAG,CAAC,CAAC,CAAC,IAAI,EAAE,CAAC,CAAC;oBAClE,UAAU,GAAG,CAAC,CAAC;iBAChB;gBACD,MAAM;YACR;gBACE,IAAI,WAAW,IAAI,UAAU,GAAG,CAAC,IAAI,UAAU,KAAK,CAAC,IAAI,KAAK,sBAAmB,EAAE;oBACjF,IAAM,QAAQ,GAAG,KAAK,CAAC,SAAS,CAAC,UAAU,EAAE,CAAC,GAAG,CAAC,CAAC,CAAC,IAAI,EAAE,CAAC;oBAC3D,MAAM,CAAC,WAAW,CAAC,GAAG,cAAc,CAAC,CAAC,CAAC,sBAAsB,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,QAAQ,CAAC;oBACnF,SAAS,GAAG,CAAC,CAAC;oBACd,UAAU,GAAG,CAAC,CAAC;oBACf,WAAW,GAAG,IAAI,CAAC;oBACnB,cAAc,GAAG,KAAK,CAAC;iBACxB;gBACD,MAAM;SACT;KACF;IAED,IAAI,WAAW,IAAI,UAAU,EAAE;QAC7B,IAAM,QAAQ,GAAG,KAAK,CAAC,MAAM,CAAC,UAAU,CAAC,CAAC,IAAI,EAAE,CAAC;QACjD,MAAM,CAAC,WAAW,CAAC,GAAG,cAAc,CAAC,CAAC,CAAC,sBAAsB,CAAC,QAAQ,CAAC,CAAC,CAAC,CAAC,QAAQ,CAAC;KACpF;IAED,OAAO,MAAM,CAAC;AAChB,CAAC;AAED,MAAM,iCAAiC,KAAa;IAClD,IAAM,EAAE,GAAG,KAAK,CAAC,UAAU,CAAC,CAAC,CAAC,CAAC;IAC/B,IAAM,EAAE,GAAG,KAAK,CAAC,UAAU,CAAC,KAAK,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC;IAC9C,IAAI,EAAE,IAAI,EAAE,IAAI,CAAC,EAAE,wBAAoB,IAAI,EAAE,wBAAoB,CAAC,EAAE;QAClE,IAAM,SAAS,GAAG,KAAK,CAAC,SAAS,CAAC,CAAC,EAAE,KAAK,CAAC,MAAM,GAAG,CAAC,CAAC,CAAC;QACvD,0EAA0E;QAC1E,gDAAgD;QAChD,IAAI,SAAS,CAAC,OAAO,CAAC,IAAI,CAAC,IAAI,CAAC,CAAC,IAAI,SAAS,CAAC,OAAO,CAAC,GAAG,CAAC,IAAI,CAAC,CAAC,EAAE;YACjE,KAAK,GAAG,SAAS,CAAC;SACnB;KACF;IACD,OAAO,KAAK,CAAC;AACf,CAAC;AAED,MAAM,oBAAoB,KAAa;IACrC,OAAO,KAAK,CAAC,OAAO,CAAC,aAAa,EAAE,UAAA,CAAC;QACvB,OAAO,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,GAAG,GAAG,GAAG,CAAC,CAAC,MAAM,CAAC,CAAC,CAAC,CAAC;IACzC,CAAC,CAAC,CAAC,WAAW,EAAE,CAAC;AAC/B,CAAC","sourcesContent":["/**\n * @license\n * Copyright Google Inc. 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\nconst enum Char {\n  OpenParen = 40,\n  CloseParen = 41,\n  Colon = 58,\n  Semicolon = 59,\n  BackSlash = 92,\n  QuoteNone = 0,  // indicating we are not inside a quote\n  QuoteDouble = 34,\n  QuoteSingle = 39,\n}\n\n\n/**\n * Parses string representation of a style and converts it into object literal.\n *\n * @param value string representation of style as used in the `style` attribute in HTML.\n *   Example: `color: red; height: auto`.\n * @returns an object literal. `{ color: 'red', height: 'auto'}`.\n */\nexport function parseStyle(value: string): {[key: string]: any} {\n  const styles: {[key: string]: any} = {};\n\n  let i = 0;\n  let parenDepth = 0;\n  let quote: Char = Char.QuoteNone;\n  let valueStart = 0;\n  let propStart = 0;\n  let currentProp: string|null = null;\n  let valueHasQuotes = false;\n  while (i < value.length) {\n    const token = value.charCodeAt(i++) as Char;\n    switch (token) {\n      case Char.OpenParen:\n        parenDepth++;\n        break;\n      case Char.CloseParen:\n        parenDepth--;\n        break;\n      case Char.QuoteSingle:\n        // valueStart needs to be there since prop values don't\n        // have quotes in CSS\n        valueHasQuotes = valueHasQuotes || valueStart > 0;\n        if (quote === Char.QuoteNone) {\n          quote = Char.QuoteSingle;\n        } else if (quote === Char.QuoteSingle && value.charCodeAt(i - 1) !== Char.BackSlash) {\n          quote = Char.QuoteNone;\n        }\n        break;\n      case Char.QuoteDouble:\n        // same logic as above\n        valueHasQuotes = valueHasQuotes || valueStart > 0;\n        if (quote === Char.QuoteNone) {\n          quote = Char.QuoteDouble;\n        } else if (quote === Char.QuoteDouble && value.charCodeAt(i - 1) !== Char.BackSlash) {\n          quote = Char.QuoteNone;\n        }\n        break;\n      case Char.Colon:\n        if (!currentProp && parenDepth === 0 && quote === Char.QuoteNone) {\n          currentProp = hyphenate(value.substring(propStart, i - 1).trim());\n          valueStart = i;\n        }\n        break;\n      case Char.Semicolon:\n        if (currentProp && valueStart > 0 && parenDepth === 0 && quote === Char.QuoteNone) {\n          const styleVal = value.substring(valueStart, i - 1).trim();\n          styles[currentProp] = valueHasQuotes ? stripUnnecessaryQuotes(styleVal) : styleVal;\n          propStart = i;\n          valueStart = 0;\n          currentProp = null;\n          valueHasQuotes = false;\n        }\n        break;\n    }\n  }\n\n  if (currentProp && valueStart) {\n    const styleVal = value.substr(valueStart).trim();\n    styles[currentProp] = valueHasQuotes ? stripUnnecessaryQuotes(styleVal) : styleVal;\n  }\n\n  return styles;\n}\n\nexport function stripUnnecessaryQuotes(value: string): string {\n  const qS = value.charCodeAt(0);\n  const qE = value.charCodeAt(value.length - 1);\n  if (qS == qE && (qS == Char.QuoteSingle || qS == Char.QuoteDouble)) {\n    const tempValue = value.substring(1, value.length - 1);\n    // special case to avoid using a multi-quoted string that was just chomped\n    // (e.g. `font-family: \"Verdana\", \"sans-serif\"`)\n    if (tempValue.indexOf('\\'') == -1 && tempValue.indexOf('\"') == -1) {\n      value = tempValue;\n    }\n  }\n  return value;\n}\n\nexport function hyphenate(value: string): string {\n  return value.replace(/[a-z][A-Z]/g, v => {\n                return v.charAt(0) + '-' + v.charAt(1);\n              }).toLowerCase();\n}\n"]}