Press n or j to go to the next uncovered block, b, p or k for the previous block.
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* @license Apache-2.0
*
* Copyright (c) 2022 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/* eslint-disable no-underscore-dangle */
'use strict';
// MODULES //
var logger = require( 'debug' );
var state2enum = require( './state2enum.js' );
// VARIABLES //
var debug = logger( 'state:skipped_invalid_quote_end' );
// Possible transition states...
var SKIPPED_FIELD = state2enum[ 'skipped_field' ];
var INIT = state2enum[ 'init' ];
// MAIN //
/**
* Returns a function for processing field characters after an ending quote sequence within a skipped line.
*
* @private
* @param {Parser} parser - parser instance
* @returns {Function} processing function
*/
function processor( parser ) {
var delimiterLastIndex;
var newlineLastIndex;
var delimiter;
var newline;
delimiterLastIndex = parser._delimiterLastIndex;
delimiter = parser._delimiter;
newlineLastIndex = parser._newlineLastIndex;
newline = parser._newline;
return next;
/**
* Processes a character.
*
* @private
* @param {string} ch - character
* @returns {void}
*/
function next( ch ) {
debug( 'Char: %s', ch );
/*
* Check for a field delimiter.
*/
if (
ch === delimiter[ delimiterLastIndex ] &&
parser._scan( delimiter, delimiterLastIndex )
) {
debug( 'Delimiter.' );
parser._push( ch )._changeState( SKIPPED_FIELD );
return;
}
/*
* Check for a row separator.
*/
if (
ch === newline[ newlineLastIndex ] &&
parser._scan( newline, newlineLastIndex )
) {
// Rewind the cursor to point to the last character before the newline character sequence:
debug( 'Newline.' );
parser._rewind( newlineLastIndex )._changeState( INIT );
return;
}
// Continue processing until we can transition to a new state:
parser._push( ch );
}
}
// EXPORTS //
module.exports = processor;
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