diff options
author | Luke Shumaker <lukeshu@lukeshu.com> | 2023-02-07 12:45:46 -0700 |
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committer | Luke Shumaker <lukeshu@lukeshu.com> | 2023-02-07 14:05:37 -0700 |
commit | 643cbc4d6e37d07619bec05039da1abb411d28d4 (patch) | |
tree | 68f771d5103d0243ed49b21ff896f01e49a81a72 /internal/jsonstruct/borrowed_tags.go | |
parent | 2b9473f5e8816eeea76b2fdada184532be00d3a2 (diff) |
Move struct-handling to internal/jsonstruct
Diffstat (limited to 'internal/jsonstruct/borrowed_tags.go')
-rw-r--r-- | internal/jsonstruct/borrowed_tags.go | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/internal/jsonstruct/borrowed_tags.go b/internal/jsonstruct/borrowed_tags.go new file mode 100644 index 0000000..f2ef71c --- /dev/null +++ b/internal/jsonstruct/borrowed_tags.go @@ -0,0 +1,40 @@ +// Copyright 2011 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. +// +// SPDX-License-Identifier: BSD-3-Clause + +package jsonstruct // MODIFIED: changed package name + +import ( + "strings" +) + +// tagOptions is the string following a comma in a struct field's "json" +// tag, or the empty string. It does not include the leading comma. +type tagOptions string + +// parseTag splits a struct field's json tag into its name and +// comma-separated options. +func parseTag(tag string) (string, tagOptions) { + tag, opt, _ := strings.Cut(tag, ",") + return tag, tagOptions(opt) +} + +// Contains reports whether a comma-separated list of options +// contains a particular substr flag. substr must be surrounded by a +// string boundary or commas. +func (o tagOptions) Contains(optionName string) bool { + if len(o) == 0 { + return false + } + s := string(o) + for s != "" { + var name string + name, s, _ = strings.Cut(s, ",") + if name == optionName { + return true + } + } + return false +} |