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rocambole-whitespace
Advanced tools
Readme
Helpers to manipulate rocambole
WhiteSpace
tokens.
Used mainly by esformatter and its plugins.
var ws = require('rocambole-whitespace');
setOptions
is just a way to store some constants so later on the
limit
/limitBefore
/limitAfter
you can reference the values by Id.
setOptions({
// sets "value" used by `WhiteSpace` tokens (defaults to single space)
value: ' ',
// values inside "before" are used by `limitBefore`
before: {
// setting to `0` will remove all spaces before the token
parenthesis: 0
},
// values inside "after" are used by `limitAfter`
after: {
// setting to `1` will add/keep a single `WhiteSpace` after the token
parenthesis: 1
}
});
Important: calling this method will override all the options.
limits the amount of WhiteSpace
before a given token.
// remove all white spaces before `node.startToken`
limitBefore(node.startToken, 0);
// add/keep 2 white spaces before `node.startToken`
limitBefore(node.startToken, 2);
// will use value stored on `setOptions` for `before.parenthesis`
limitBefore(node.startToken, 'parenthesis');
// values smaller than zero are ignored (this won't change anything)
limitBefore(node.startToken, -1);
limits the amount of WhiteSpace
after a given token.
// remove all white spaces after `node.startToken`
limitAfter(node.startToken, 0);
// add/keep 1 white space after `node.startToken`
limitAfter(node.startToken, 1);
// will use value stored on `setOptions` for `after.parenthesis`
limitAfter(node.startToken, 'parenthesis');
// values smaller than zero are ignored (this won't change anything)
limitAfter(node.startToken, -1);
limits the amount of WhiteSpace
around a given token.
// add/keep 1 white space before and after `node.startToken`
limit(node.startToken, 1);
// it's just an alias to
limitBefore(node.startToken, 1);
limitAfter(node.startToken, 1);
reads value stored during setOptions
for a given type
, or returns -1
if
not found.
assert( expectedBefore('parenthesis') === 0 );
reads value stored during setOptions
for a given type
, or returns -1
if
not found.
assert( expectedAfter('parenthesis') === 1 );
This module uses debug internally. To
make it easier to identify what is wrong we sometimes run the esformatter tests
with a DEBUG
flag, like:
DEBUG=rocambole:ws:* npm test
Released under the MIT License
FAQs
helpers for rocambole AST whitespace manipulation
We found that rocambole-whitespace demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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