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//go:generate go run ../cmd/generator/main.go
//go:generate go fmt ucd_table.go
package compiler
import (
"fmt"
"github.com/nihei9/maleeni/ucd"
)
func findCodePointRanges(propName, propVal string) ([]*ucd.CodePointRange, bool, error) {
name, ok := propertyNameAbbs[ucd.NormalizeSymbolicValue(propName)]
if !ok {
return nil, false, fmt.Errorf("unsupported character property name: %v", propName)
}
switch name {
case "gc":
val, ok := generalCategoryValueAbbs[ucd.NormalizeSymbolicValue(propVal)]
if !ok {
return nil, false, fmt.Errorf("unsupported character property value: %v", propVal)
}
vals, ok := compositGeneralCategories[val]
if !ok {
vals = []string{val}
}
var ranges []*ucd.CodePointRange
for _, v := range vals {
rs, ok := generalCategoryCodePoints[v]
if !ok {
return nil, false, fmt.Errorf("invalid value of the General_Category property: %v", v)
}
ranges = append(ranges, rs...)
}
return ranges, false, nil
case "wspace":
yes, ok := binaryValues[ucd.NormalizeSymbolicValue(propVal)]
if !ok {
return nil, false, fmt.Errorf("unsupported character property value: %v", propVal)
}
if yes {
return whiteSpaceCodePoints, false, nil
} else {
return whiteSpaceCodePoints, true, nil
}
}
// If the process reaches this code, it's a bug. We must handle all of the properties registered with
// the `propertyNameAbbs`.
return nil, false, fmt.Errorf("character property '%v' is unavailable", propName)
}
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