PHP Classes

File: editor/codemirror/src/util/StringStream.js

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  Classes of Cedric Maenetja   Custom PHP HTML Parser   editor/codemirror/src/util/StringStream.js   Download  
File: editor/codemirror/src/util/StringStream.js
Role: Auxiliary data
Content type: text/plain
Description: Auxiliary data
Class: Custom PHP HTML Parser
Process HTML to replace it with parameter values
Author: By
Last change:
Date: 1 year ago
Size: 2,799 bytes
 

Contents

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import { countColumn } from "./misc.js" // STRING STREAM // Fed to the mode parsers, provides helper functions to make // parsers more succinct. class StringStream { constructor(string, tabSize, lineOracle) { this.pos = this.start = 0 this.string = string this.tabSize = tabSize || 8 this.lastColumnPos = this.lastColumnValue = 0 this.lineStart = 0 this.lineOracle = lineOracle } eol() {return this.pos >= this.string.length} sol() {return this.pos == this.lineStart} peek() {return this.string.charAt(this.pos) || undefined} next() { if (this.pos < this.string.length) return this.string.charAt(this.pos++) } eat(match) { let ch = this.string.charAt(this.pos) let ok if (typeof match == "string") ok = ch == match else ok = ch && (match.test ? match.test(ch) : match(ch)) if (ok) {++this.pos; return ch} } eatWhile(match) { let start = this.pos while (this.eat(match)){} return this.pos > start } eatSpace() { let start = this.pos while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos return this.pos > start } skipToEnd() {this.pos = this.string.length} skipTo(ch) { let found = this.string.indexOf(ch, this.pos) if (found > -1) {this.pos = found; return true} } backUp(n) {this.pos -= n} column() { if (this.lastColumnPos < this.start) { this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue) this.lastColumnPos = this.start } return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) } indentation() { return countColumn(this.string, null, this.tabSize) - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) } match(pattern, consume, caseInsensitive) { if (typeof pattern == "string") { let cased = str => caseInsensitive ? str.toLowerCase() : str let substr = this.string.substr(this.pos, pattern.length) if (cased(substr) == cased(pattern)) { if (consume !== false) this.pos += pattern.length return true } } else { let match = this.string.slice(this.pos).match(pattern) if (match && match.index > 0) return null if (match && consume !== false) this.pos += match[0].length return match } } current(){return this.string.slice(this.start, this.pos)} hideFirstChars(n, inner) { this.lineStart += n try { return inner() } finally { this.lineStart -= n } } lookAhead(n) { let oracle = this.lineOracle return oracle && oracle.lookAhead(n) } baseToken() { let oracle = this.lineOracle return oracle && oracle.baseToken(this.pos) } } export default StringStream