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木农
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Sep 28, 2017
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,180 @@ | ||
| // Based on pretty-data (https://github.com/vkiryukhin/pretty-data) | ||
| module.exports = class XmlFormatter { | ||
| constructor(options) { | ||
| options = options || {}; | ||
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| if (typeof options.preferSpaces === "undefined") { | ||
| options.preferSpaces = false; | ||
| } | ||
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| if (typeof options.splitNamespaces === "undefined") { | ||
| options.splitNamespaces = true; | ||
| } | ||
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| options.tabSize = options.tabSize || 4; | ||
| options.newLine = options.newLine || "\n"; | ||
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| this.newLine = options.newLine || "\n"; | ||
| this.indentPattern = (options.preferSpaces) ? " ".repeat(options.tabSize) : "\t"; | ||
| this.splitNamespaces = options.splitNamespaces; | ||
| } | ||
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| format(xml) { | ||
| xml = this.minify(xml, false); | ||
| xml = xml.replace(/</g, "~::~<"); | ||
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| if (this.splitNamespaces) { | ||
| xml = xml | ||
| .replace(/xmlns\:/g, "~::~xmlns:") | ||
| .replace(/xmlns\=/g, "~::~xmlns="); | ||
| } | ||
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| let parts = xml.split("~::~"); | ||
| let inComment = false; | ||
| let level = 0; | ||
| let output = ""; | ||
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| for (let i = 0; i < parts.length; i++) { | ||
| // <! | ||
| if (parts[i].search(/<!/) > -1) { | ||
| output += this._getIndent(level, parts[i]); | ||
| inComment = true; | ||
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| // end <! | ||
| if (parts[i].search(/-->/) > -1 || parts[i].search(/\]>/) > -1 || parts[i].search(/!DOCTYPE/) > -1) { | ||
| inComment = false; | ||
| } | ||
| } | ||
|
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| // end <! | ||
| else if (parts[i].search(/-->/) > -1 || parts[i].search(/\]>/) > -1) { | ||
| output += parts[i]; | ||
| inComment = false; | ||
| } | ||
|
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| // <elm></elm> | ||
| else if (/^<(\w|:)/.test(parts[i - 1]) && /^<\/(\w|:)/.test(parts[i]) | ||
| && /^<[\w:\-\.\,\/]+/.exec(parts[i - 1])[0] == /^<\/[\w:\-\.\,]+/.exec(parts[i])[0].replace("/", "")) { | ||
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| output += parts[i]; | ||
| if (!inComment) level--; | ||
| } | ||
|
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| // <elm> | ||
| else if (parts[i].search(/<(\w|:)/) > -1 && parts[i].search(/<\//) == -1 && parts[i].search(/\/>/) == -1) { | ||
| output = (!inComment) ? output += this._getIndent(level++, parts[i]) : output += parts[i]; | ||
| } | ||
|
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| // <elm>...</elm> | ||
| else if (parts[i].search(/<(\w|:)/) > -1 && parts[i].search(/<\//) > -1) { | ||
| output = (!inComment) ? output += this._getIndent(level, parts[i]) : output += parts[i]; | ||
| } | ||
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| // </elm> | ||
| else if (parts[i].search(/<\//) > -1) { | ||
| output = (!inComment) ? output += this._getIndent(--level, parts[i]) : output += parts[i]; | ||
| } | ||
|
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| // <elm /> | ||
| else if (parts[i].search(/\/>/) > -1 && (!this.splitNamespaces || parts[i].search(/xmlns(:|=)/) == -1)) { | ||
| output = (!inComment) ? output += this._getIndent(level, parts[i]) : output += parts[i]; | ||
| } | ||
|
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| // xmlns /> | ||
| else if (parts[i].search(/\/>/) > -1 && parts[i].search(/xmlns(:|=)/) > -1 && this.splitNamespaces) { | ||
| output = (!inComment) ? output += this._getIndent(level--, parts[i]) : output += parts[i]; | ||
| } | ||
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| // <?xml ... ?> | ||
| else if (parts[i].search(/<\?/) > -1) { | ||
| output += this._getIndent(level, parts[i]); | ||
| } | ||
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| // xmlns | ||
| else if (this.splitNamespaces && (parts[i].search(/xmlns\:/) > -1 || parts[i].search(/xmlns\=/) > -1)) { | ||
| output += this._getIndent(level, parts[i]); | ||
| } | ||
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| else { | ||
| output += parts[i]; | ||
| } | ||
| } | ||
|
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| // remove leading newline | ||
| if (output[0] == this.newLine) { | ||
| output = output.slice(1); | ||
| } | ||
|
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| else if (output.substring(0, 1) == this.newLine) { | ||
| output = output.slice(2); | ||
| } | ||
|
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| return output; | ||
| } | ||
|
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| minify(xml, removeComments) { | ||
| if (typeof removeComments === "undefined") { | ||
| removeComments = false; | ||
| } | ||
|
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| xml = this._stripLineBreaks(xml); // all line breaks outside of CDATA elements | ||
| xml = (removeComments) ? xml.replace(/\<![ \r\n\t]*(--([^\-]|[\r\n]|-[^\-])*--[ \r\n\t]*)\>/g, "") : xml; | ||
| xml = xml.replace(/>\s{0,}</g, "><"); // insignificant whitespace between tags | ||
| xml = xml.replace(/"\s+(?=[^\s]+=)/g, "\" "); // spaces between attributes | ||
| xml = xml.replace(/"\s+(?=>)/g, "\""); // spaces between the last attribute and tag close (>) | ||
| xml = xml.replace(/"\s+(?=\/>)/g, "\" "); // spaces between the last attribute and tag close (/>) | ||
| xml = xml.replace(/[^ <>="]\s+[^ <>="]+=/g, (match) => { // spaces between the node name and the first attribute | ||
| return match.replace(/\s+/g, " "); | ||
| }); | ||
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| return xml; | ||
| } | ||
|
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| _getIndent(level, trailingValue) { | ||
| trailingValue = trailingValue || ""; | ||
|
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| return `${this.newLine}${this.indentPattern.repeat(level)}${trailingValue}`; | ||
| } | ||
|
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| _stripLineBreaks(xml) { | ||
| let output = ""; | ||
| let inTag = false; | ||
| let inTagName = false; | ||
| let inCdata = false; | ||
| let inAttribute = false; | ||
|
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| for (let i = 0; i < xml.length; i++) { | ||
| let char = xml.charAt(i); | ||
| let prev = xml.charAt(i - 1); | ||
| let next = xml.charAt(i + 1); | ||
|
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| if (char == "!" && (xml.substr(i, 8) == "![CDATA[" || xml.substr(i, 3) == "!--")) { | ||
| inCdata = true; | ||
| } | ||
|
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| else if (char == "]" && (xml.substr(i, 3) == "]]>")) { | ||
| inCdata = false; | ||
| } | ||
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| else if (char == "-" && (xml.substr(i, 3) == "-->")) { | ||
| inCdata = false; | ||
| } | ||
|
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| else if (char.search(/[\r\n]/g) > -1 && !inCdata) { | ||
| if (/\r/.test(char) && /\S|\r|\n/.test(prev) && /\S|\r|\n/.test(xml.charAt(i + this.newLine.length))) { | ||
| output += char; | ||
| } | ||
|
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| else if (/\n/.test(char) && /\S|\r|\n/.test(xml.charAt(i - this.newLine.length)) && /\S|\r|\n/.test(next)) { | ||
| output += char; | ||
| } | ||
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| continue; | ||
| } | ||
|
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| output += char; | ||
| } | ||
|
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| return output; | ||
| } | ||
| } |
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This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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