github.com/linchen2chris/hugo@v0.0.0-20230307053224-cec209389705/tpl/compare/init.go (about)

     1  // Copyright 2017 The Hugo Authors. All rights reserved.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  // http://www.apache.org/licenses/LICENSE-2.0
     7  //
     8  // Unless required by applicable law or agreed to in writing, software
     9  // distributed under the License is distributed on an "AS IS" BASIS,
    10  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    11  // See the License for the specific language governing permissions and
    12  // limitations under the License.
    13  
    14  package compare
    15  
    16  import (
    17  	"context"
    18  
    19  	"github.com/gohugoio/hugo/deps"
    20  	"github.com/gohugoio/hugo/langs"
    21  	"github.com/gohugoio/hugo/tpl/internal"
    22  )
    23  
    24  const name = "compare"
    25  
    26  func init() {
    27  	f := func(d *deps.Deps) *internal.TemplateFuncsNamespace {
    28  		if d.Language == nil {
    29  			panic("language must be set")
    30  		}
    31  
    32  		ctx := New(langs.GetLocation(d.Language), false)
    33  
    34  		ns := &internal.TemplateFuncsNamespace{
    35  			Name:    name,
    36  			Context: func(cctx context.Context, args ...any) (any, error) { return ctx, nil },
    37  		}
    38  
    39  		ns.AddMethodMapping(ctx.Default,
    40  			[]string{"default"},
    41  			[][2]string{
    42  				{`{{ "Hugo Rocks!" | default "Hugo Rules!" }}`, `Hugo Rocks!`},
    43  				{`{{ "" | default "Hugo Rules!" }}`, `Hugo Rules!`},
    44  			},
    45  		)
    46  
    47  		ns.AddMethodMapping(ctx.Eq,
    48  			[]string{"eq"},
    49  			[][2]string{
    50  				{`{{ if eq .Section "blog" }}current-section{{ end }}`, `current-section`},
    51  			},
    52  		)
    53  
    54  		ns.AddMethodMapping(ctx.Ge,
    55  			[]string{"ge"},
    56  			[][2]string{
    57  				{`{{ if ge hugo.Version "0.80" }}Reasonable new Hugo version!{{ end }}`, `Reasonable new Hugo version!`},
    58  			},
    59  		)
    60  
    61  		ns.AddMethodMapping(ctx.Gt,
    62  			[]string{"gt"},
    63  			[][2]string{},
    64  		)
    65  
    66  		ns.AddMethodMapping(ctx.Le,
    67  			[]string{"le"},
    68  			[][2]string{},
    69  		)
    70  
    71  		ns.AddMethodMapping(ctx.Lt,
    72  			[]string{"lt"},
    73  			[][2]string{},
    74  		)
    75  
    76  		ns.AddMethodMapping(ctx.Ne,
    77  			[]string{"ne"},
    78  			[][2]string{},
    79  		)
    80  
    81  		ns.AddMethodMapping(ctx.Conditional,
    82  			[]string{"cond"},
    83  			[][2]string{
    84  				{`{{ cond (eq (add 2 2) 4) "2+2 is 4" "what?" | safeHTML }}`, `2+2 is 4`},
    85  			},
    86  		)
    87  
    88  		return ns
    89  	}
    90  
    91  	internal.AddTemplateFuncsNamespace(f)
    92  }