diff options
Diffstat (limited to 'web/server/h2o/libh2o/misc/oktavia/src/query-string-parser.jsx')
-rw-r--r-- | web/server/h2o/libh2o/misc/oktavia/src/query-string-parser.jsx | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/web/server/h2o/libh2o/misc/oktavia/src/query-string-parser.jsx b/web/server/h2o/libh2o/misc/oktavia/src/query-string-parser.jsx new file mode 100644 index 000000000..71d015c91 --- /dev/null +++ b/web/server/h2o/libh2o/misc/oktavia/src/query-string-parser.jsx @@ -0,0 +1,128 @@ +import "query.jsx"; + + +class QueryStringParser +{ + var queries : Query[]; + function constructor() + { + this.queries = [] : Query[]; + } + + function parse (queryString : string) : Query[] + { + var nextOr = false; + var nextNot = false; + var currentWordStart = 0; + var status = 0; + // 0: free + // 1: in unquoted word + // 2: in quote + var isSpace = /[\s\u3000]/; + for (var i = 0; i < queryString.length; i++) + { + var ch = queryString.charAt(i); + switch (status) + { + case 0: // free + if (!isSpace.test(ch)) + { + if (ch == '-') + { + nextNot = true; + } + else if (ch == '"') + { + currentWordStart = i + 1; + status = 2; + } + else + { + currentWordStart = i; + status = 1; + } + } + else + { + nextNot = false; + } + break; + case 1: // unquoted word + if (isSpace.test(ch)) + { + var word = queryString.slice(currentWordStart, i); + if (word == 'OR') + { + nextOr = true; + } + else + { + var query = new Query(); + query.word = word; + query.or = nextOr; + query.not = nextNot; + this.queries.push(query); + nextOr = false; + nextNot = false; + } + status = 0; + } + break; + case 2: // in quote + if (ch == '"') + { + var word = queryString.slice(currentWordStart, i); + var query = new Query(); + query.word = word; + query.or = nextOr; + query.not = nextNot; + query.raw = true; + this.queries.push(query); + nextOr = false; + nextNot = false; + status = 0; + } + break; + } + } + switch (status) + { + case 0: + break; + case 1: + var query = new Query(); + var word = queryString.slice(currentWordStart, queryString.length); + if (word != 'OR') + { + query.word = word; + query.or = nextOr; + query.not = nextNot; + this.queries.push(query); + } + break; + case 2: + var query = new Query(); + query.word = queryString.slice(currentWordStart, queryString.length); + query.or = nextOr; + query.not = nextNot; + query.raw = true; + this.queries.push(query); + break; + } + return this.queries; + } + + function highlight () : string + { + var result = [] : string[]; + for (var i = 0; i < this.queries.length; i++) + { + var query = this.queries[i]; + if (!query.not) + { + result.push("highlight=" + String.encodeURIComponent(query.word)); + } + } + return '?' + result.join('&'); + } +} |