export_test.go

Documentation: golang.org/x/text/collate

     1  // Copyright 2012 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package collate
     6  
     7  // Export for testing.
     8  // TODO: no longer necessary. Remove at some point.
     9  
    10  import (
    11  	"fmt"
    12  
    13  	"golang.org/x/text/internal/colltab"
    14  )
    15  
    16  const (
    17  	defaultSecondary = 0x20
    18  	defaultTertiary  = 0x2
    19  )
    20  
    21  type Weights struct {
    22  	Primary, Secondary, Tertiary, Quaternary int
    23  }
    24  
    25  func W(ce ...int) Weights {
    26  	w := Weights{ce[0], defaultSecondary, defaultTertiary, 0}
    27  	if len(ce) > 1 {
    28  		w.Secondary = ce[1]
    29  	}
    30  	if len(ce) > 2 {
    31  		w.Tertiary = ce[2]
    32  	}
    33  	if len(ce) > 3 {
    34  		w.Quaternary = ce[3]
    35  	}
    36  	return w
    37  }
    38  func (w Weights) String() string {
    39  	return fmt.Sprintf("[%X.%X.%X.%X]", w.Primary, w.Secondary, w.Tertiary, w.Quaternary)
    40  }
    41  
    42  func convertFromWeights(ws []Weights) []colltab.Elem {
    43  	out := make([]colltab.Elem, len(ws))
    44  	for i, w := range ws {
    45  		out[i], _ = colltab.MakeElem(w.Primary, w.Secondary, w.Tertiary, 0)
    46  		if out[i] == colltab.Ignore && w.Quaternary > 0 {
    47  			out[i] = colltab.MakeQuaternary(w.Quaternary)
    48  		}
    49  	}
    50  	return out
    51  }
    52
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