How to use regjsparser - 7 common examples
To help you get started, we’ve selected a few regjsparser examples, based on popular ways it is used in public projects.
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alan-ai / alan-sdk-reactnative / testtools / node_modules / regexpu-core / rewrite-pattern.js View on Github 
config.useUnicodeFlag = options && options.useUnicodeFlag;
config.unicodePropertyEscape = options && options.unicodePropertyEscape;
if (supportDotAllFlag && config.useDotAllFlag) {
throw new Error('`useDotAllFlag` and `dotAllFlag` cannot both be true!');
}
const regenerateOptions = {
'hasUnicodeFlag': config.useUnicodeFlag,
'bmpOnly': !config.unicode
};
const groups = {
'onNamedGroup': options && options.onNamedGroup,
'lastIndex': 0,
'names': Object.create(null), // { [name]: index }
'unmatchedReferences': Object.create(null) // { [name]: Array }
};
const tree = parse(pattern, flags, regjsparserFeatures);
// Note: `processTerm` mutates `tree` and `groups`.
processTerm(tree, regenerateOptions, groups);
assertNoUnmatchedReferences(groups);
return generate(tree);
};const update = (item, pattern) => {
let tree = parse(pattern, config.useUnicodeFlag ? 'u' : '');
switch (tree.type) {
case 'characterClass':
case 'group':
case 'value':
// No wrapping needed.
break;
default:
// Wrap the pattern in a non-capturing group.
tree = wrap(tree, pattern);
}
Object.assign(item, tree);
};const update = (item, pattern) => {
let tree = parse(pattern, config.useUnicodeFlag ? 'u' : '');
switch (tree.type) {
case 'characterClass':
case 'group':
case 'value':
// No wrapping needed.
break;
default:
// Wrap the pattern in a non-capturing group.
tree = wrap(tree, pattern);
}
Object.assign(item, tree);
};function update(item, pattern) {
// TODO: Test if memoizing `pattern` here is worth the effort.
if (!pattern) {
return;
}
var tree = parse(pattern, '');
switch (tree.type) {
case 'characterClass':
case 'group':
case 'value':
// No wrapping needed.
break;
default:
// Wrap the pattern in a non-capturing group.
tree = wrap(tree, pattern);
}
assign(item, tree);
}const supportDotAllFlag = options && options.dotAllFlag;
config.dotAll = supportDotAllFlag && flags && flags.includes('s');
config.namedGroup = options && options.namedGroup;
config.useUnicodeFlag = options && options.useUnicodeFlag;
config.unicodePropertyEscape = options && options.unicodePropertyEscape;
const regenerateOptions = {
'hasUnicodeFlag': config.useUnicodeFlag,
'bmpOnly': !config.unicode
};
const groups = {
'onNamedGroup': options && options.onNamedGroup,
'lastIndex': 0,
'names': Object.create(null), // { [name]: index }
'unmatchedReferences': Object.create(null) // { [name]: Array }
};
const tree = parse(pattern, flags, regjsparserFeatures);
// Note: `processTerm` mutates `tree` and `groups`.
processTerm(tree, regenerateOptions, groups);
assertNoUnmatchedReferences(groups);
return generate(tree);
};function update(item, pattern) {
// TODO: Test if memoizing `pattern` here is worth the effort.
if (!pattern) {
return;
}
var tree = parse(pattern, '');
switch (tree.type) {
case 'characterClass':
case 'group':
case 'value':
// No wrapping needed.
break;
default:
// Wrap the pattern in a non-capturing group.
tree = wrap(tree, pattern);
}
assign(item, tree);
}constructor(regex) {
super();
var pattern = parseRegex(regex);
this.nfa = new NFA();
this.walk(pattern, this.nfa.start, this.nfa.end);
}regjsparser
Parsing the JavaScript's RegExp in JavaScript.
