Consume Javascipt strings character-by-character.
This module provides basic state management and functions for reading Javascipt strings character-by-character
npm install consumer
var Consumer = require'consumer';var c = "1234567890";var match = cconsume/\d/;console.logmatch;// ["1"]match = cadvance1consume//;console.logmatch;// ["34","3","4"]console.logccurrent;// 5console.logcposition;// 4
Constructs a new Consumer object.
Gets the character at the current index.
Gets or sets the current position.
Returns true when the
position is at the end.
regexp against the
source at the current
position. If the match fails, null is returned and the
position is not changed.
Note 1: This module fiddles with the RegExp's
lastIndex property to do the continuation matches. For it to work,
RegExp objects used will be re-compiled with the
g flag if it doesn't have one. This is a slight
performance hit- so should define them with the
g flag to avoid it.
Note 2: Since continuation matching is used, the
^ (start of input) anchor should not be used.
forces ALL matches start at the current
position. To skip over something, advance the
- manually setting the
consume()and discared the result.
Peeks at the next
n characters of the
source without advancing the
Advance the position ahead
The MIT License (MIT)
Copyright (c) 2013 William Wicks
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.