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README
¶
go-queryparser 
go-queryparser parses a common "q" http GET variable to strip out filters, which can be used for advanced searching, like:
Hello World tags:example,world foo:"something quoted" author:lrstanley
Use:
This will pull from master (currently v2):
$ go get -u -v github.com/lrstanley/go-queryparser
v1
$ go get -u -v gopkg.in/lrstanley/go-queryparser.v1
Example:
package main
import (
"fmt"
"net/http"
"github.com/lrstanley/go-queryparser"
)
func main() {
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
q := queryparser.Parse(r.FormValue("q"))
if q.Has("author") {
fmt.Fprintf(w, "filtering by author %q!\n", q.GetOne("author"))
return
}
fmt.Fprint(w, "no filtering requested!\n")
})
http.ListenAndServe(":8080", nil)
}
$ curl -s localhost:8080
no filtering requested!
$ curl -s 'localhost:8080?q=author:"liam"'
filtering by author "liam"!
The main benefit is for user input boxes where you want additional filtering, like the Github issues search box, or similar.
Contributing
Please review the CONTRIBUTING doc for submitting issues/a guide on submitting pull requests and helping out.
License
LICENSE: The MIT License (MIT)
Copyright (c) 2017 Liam Stanley <me@liamstanley.io>
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.
Documentation
¶
Overview ¶
Package queryparser parses a common "q" http GET variable to look for text filters, which can be used for advanced searching. For example:
Hello World tags:example,world foo:"something quoted" author:lrstanley
go-queryparser also strips out not very safe/useful characters by default. See the DefaultCut function for details (and New() for how you can do this yourself.)
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func DefaultCut ¶
DefaultCut is the default cut function, which allowed stripping out potentially unwanted characters from filter fields and raw text. Only allows " _,-.:A-Za-z0-9" (or unicode equivalents).
Types ¶
type Options ¶
type Options struct {
// CutFn allows excluding specific characters from being allowed within
// the filter fields. When the function returns true on a rune, it will
// be excluded from the filter field.
CutFn func(rune) bool
// Allowed is a slice of allowed filter names. If no allowed filter names
// are provided, all are considered allowed.
Allowed []string
}
Options allow the adjustment of allowed filters and characters.
type Parser ¶
type Parser struct {
// contains filtered or unexported fields
}
Parser represents a parser.
type Query ¶
type Query struct {
// Raw is the raw (trailing) text of items that weren't filters.
Raw string
// contains filtered or unexported fields
}
Query represents filtered input.
func (*Query) Get ¶
Get returns the results of the filter if it exists, and if it successfully found a result.
func (*Query) GetOne ¶
GetOne returns the last known result for the filter, if it exists. Useful if you only want a user to define a filter once. The resulting string is empty if no filter of that key was found.
Source Files