mirror of
https://github.com/msojocs/wx-compiler.git
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49 lines
1.9 KiB
JavaScript
49 lines
1.9 KiB
JavaScript
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const keyword = `abstract|arguments|boolean|break|byte|case|catch|char|class|const|continue|debugger|default|delete|do|double|else|enum|eval|export|extends|false|final|finally|float|for|function|goto|if|implements|import|in|instanceof|int|interface|let|long|native|new|null|package|private|protected|public|return|short|static|super|switch|synchronized|this|throw|throws|transient|true|try|typeof|var|void|volatile|while|with|yield|Array|Date|eval|function|hasOwnProperty|Infinity|isFinite|isNaN|isPrototypeOf|length|Math|NaN|name|Number|Object|prototype|String|toString|undefined|valueOf`;
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const keywords = keyword.split("|");
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function delVariables(code) {
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code = " " + code + " ";
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let pos1 = 0,
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pos2 = 0;
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let len = code.length;
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let isVariables = false;
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let ret = "";
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while (pos1 < len) {
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pos2++;
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if (isVariables) {
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if (
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code
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.substring(pos2, pos2 + 2)
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.replace(/[0-9a-zA-Z_][^a-zA-Z_0-9]/g, "") == ""
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) {
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isVariables = false;
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const vv = code.substring(pos1, pos2 + 1);
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if (keywords.includes(vv)) {
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ret += vv;
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//System.out.println("vv="+vv);
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}
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pos1 = pos2 + 1;
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}
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} else {
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if (
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code
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.substring(pos2, pos2 + 2)
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.replace(/[^\._a-zA-Z][_a-zA-Z]/, "") == ""
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) {
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isVariables = true;
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ret += code.substring(pos1, pos2 + 1);
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//System.out.println(code.substring(pos1,pos2+1));
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pos1 = pos2 + 1;
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}
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}
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if (pos2 == len) break;
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}
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return ret.toString().trim();
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//return code.replaceAll("(?<=([^\\._a-zA-Z]))[a-zA-Z_]+[0-9_a-zA-Z]*(?=([^a-zA-Z_]))", "");
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}
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export{
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delVariables
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}
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