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The behavior of `truth` and `bool` is described in the corresponding test cases and examples. The decision-making around the behavior is a based on combination of the existing behavior of strconv.ParseBool in go and the MDN definition of "truthy" as JavaScript has the most interop with the Hugo ecosystem. Addresses #9160 and (indirectly) #5792
78 lines
1.8 KiB
Go
78 lines
1.8 KiB
Go
// Copyright 2017 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package cast
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import (
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"context"
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"github.com/gohugoio/hugo/deps"
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"github.com/gohugoio/hugo/tpl/internal"
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)
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const name = "cast"
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func init() {
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f := func(d *deps.Deps) *internal.TemplateFuncsNamespace {
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ctx := New()
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ns := &internal.TemplateFuncsNamespace{
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Name: name,
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Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
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}
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ns.AddMethodMapping(ctx.ToInt,
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[]string{"int"},
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[][2]string{
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{`{{ "1234" | int | printf "%T" }}`, `int`},
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},
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)
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ns.AddMethodMapping(ctx.ToString,
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[]string{"string"},
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[][2]string{
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{`{{ 1234 | string | printf "%T" }}`, `string`},
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},
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)
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ns.AddMethodMapping(ctx.ToFloat,
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[]string{"float"},
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[][2]string{
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{`{{ "1234" | float | printf "%T" }}`, `float64`},
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},
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)
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ns.AddMethodMapping(ctx.ToBool,
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[]string{"bool"},
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[][2]string{
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{`{{ "0" | bool | printf "%T" }}`, `bool`},
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{`{{ "true" | bool }}`, `true`},
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{`{{ "false" | bool }}`, `false`},
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},
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)
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ns.AddMethodMapping(ctx.ToTruth,
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[]string{"truth"},
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[][2]string{
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{`{{ "1234" | truth | printf "%T" }}`, `bool`},
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{`{{ "1234" | truth }}`, `true`},
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{`{{ "" | truth }}`, `false`},
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},
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)
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return ns
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}
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internal.AddTemplateFuncsNamespace(f)
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}
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