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author | Dimitri Staessens <dimitri@ouroboros.rocks> | 2019-10-06 21:37:45 +0200 |
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committer | Dimitri Staessens <dimitri@ouroboros.rocks> | 2019-10-06 21:37:45 +0200 |
commit | 3c51c3be85bb0d1bdb87ea0d6632f1c256912f27 (patch) | |
tree | c7ccc8279b12c4f7bdbbb4270d617e48f51722e4 /node_modules/expand-brackets/lib/compilers.js | |
parent | 412c104bebc507bea9c94fd53b5bdc4b64cbfe31 (diff) | |
download | website-3c51c3be85bb0d1bdb87ea0d6632f1c256912f27.tar.gz website-3c51c3be85bb0d1bdb87ea0d6632f1c256912f27.zip |
build: Add some required modules for node
Diffstat (limited to 'node_modules/expand-brackets/lib/compilers.js')
-rw-r--r-- | node_modules/expand-brackets/lib/compilers.js | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/node_modules/expand-brackets/lib/compilers.js b/node_modules/expand-brackets/lib/compilers.js new file mode 100644 index 0000000..fbf7fe8 --- /dev/null +++ b/node_modules/expand-brackets/lib/compilers.js @@ -0,0 +1,87 @@ +'use strict'; + +var posix = require('posix-character-classes'); + +module.exports = function(brackets) { + brackets.compiler + + /** + * Escaped characters + */ + + .set('escape', function(node) { + return this.emit('\\' + node.val.replace(/^\\/, ''), node); + }) + + /** + * Text + */ + + .set('text', function(node) { + return this.emit(node.val.replace(/([{}])/g, '\\$1'), node); + }) + + /** + * POSIX character classes + */ + + .set('posix', function(node) { + if (node.val === '[::]') { + return this.emit('\\[::\\]', node); + } + + var val = posix[node.inner]; + if (typeof val === 'undefined') { + val = '[' + node.inner + ']'; + } + return this.emit(val, node); + }) + + /** + * Non-posix brackets + */ + + .set('bracket', function(node) { + return this.mapVisit(node.nodes); + }) + .set('bracket.open', function(node) { + return this.emit(node.val, node); + }) + .set('bracket.inner', function(node) { + var inner = node.val; + + if (inner === '[' || inner === ']') { + return this.emit('\\' + node.val, node); + } + if (inner === '^]') { + return this.emit('^\\]', node); + } + if (inner === '^') { + return this.emit('^', node); + } + + if (/-/.test(inner) && !/(\d-\d|\w-\w)/.test(inner)) { + inner = inner.split('-').join('\\-'); + } + + var isNegated = inner.charAt(0) === '^'; + // add slashes to negated brackets, per spec + if (isNegated && inner.indexOf('/') === -1) { + inner += '/'; + } + if (isNegated && inner.indexOf('.') === -1) { + inner += '.'; + } + + // don't unescape `0` (octal literal) + inner = inner.replace(/\\([1-9])/g, '$1'); + return this.emit(inner, node); + }) + .set('bracket.close', function(node) { + var val = node.val.replace(/^\\/, ''); + if (node.parent.escaped === true) { + return this.emit('\\' + val, node); + } + return this.emit(val, node); + }); +}; |