diff options
Diffstat (limited to 'src/urubu/ucd/api.go')
-rw-r--r-- | src/urubu/ucd/api.go | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/src/urubu/ucd/api.go b/src/urubu/ucd/api.go deleted file mode 100644 index 8265d54..0000000 --- a/src/urubu/ucd/api.go +++ /dev/null @@ -1,180 +0,0 @@ -//go:generate go run ../cmd/ucdgen/main.go -//go:generate go fmt codepoint.go - -package ucd - -import ( - "fmt" - "strings" -) - -const ( - // https://www.unicode.org/versions/Unicode13.0.0/ch03.pdf - // 3.4 Characters and Encoding - // > D9 Unicode codespace: A range of integers from 0 to 10FFFF16. - codePointMin = 0x0 - codePointMax = 0x10FFFF -) - -func NormalizeCharacterProperty(propName, propVal string) (string, error) { - if propName == "" { - propName = "gc" - } - - name, ok := propertyNameAbbs[normalizeSymbolicValue(propName)] - if !ok { - return "", fmt.Errorf("unsupported character property name: %v", propName) - } - props, ok := derivedCoreProperties[name] - if !ok { - return "", nil - } - var b strings.Builder - yes, ok := binaryValues[normalizeSymbolicValue(propVal)] - if !ok { - return "", fmt.Errorf("unsupported character property value: %v", propVal) - } - if yes { - fmt.Fprint(&b, "[") - } else { - fmt.Fprint(&b, "[^") - } - for _, prop := range props { - fmt.Fprint(&b, prop) - } - fmt.Fprint(&b, "]") - - return b.String(), nil -} - -func IsContributoryProperty(propName string) bool { - if propName == "" { - return false - } - - for _, p := range contributoryProperties { - if propName == p { - return true - } - } - return false -} - -func FindCodePointRanges(propName, propVal string) ([]*CodePointRange, bool, error) { - if propName == "" { - propName = "gc" - } - - name, ok := propertyNameAbbs[normalizeSymbolicValue(propName)] - if !ok { - return nil, false, fmt.Errorf("unsupported character property name: %v", propName) - } - switch name { - case "gc": - val, ok := generalCategoryValueAbbs[normalizeSymbolicValue(propVal)] - if !ok { - return nil, false, fmt.Errorf("unsupported character property value: %v", propVal) - } - if val == generalCategoryValueAbbs[normalizeSymbolicValue(generalCategoryDefaultValue)] { - var allCPs []*CodePointRange - if generalCategoryDefaultRange.From > codePointMin { - allCPs = append(allCPs, &CodePointRange{ - From: codePointMin, - To: generalCategoryDefaultRange.From - 1, - }) - } - if generalCategoryDefaultRange.To < codePointMax { - allCPs = append(allCPs, &CodePointRange{ - From: generalCategoryDefaultRange.To + 1, - To: codePointMax, - }) - } - for _, cp := range generalCategoryCodePoints { - allCPs = append(allCPs, cp...) - } - return allCPs, true, nil - } - vals, ok := compositGeneralCategories[val] - if !ok { - vals = []string{val} - } - var ranges []*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 "sc": - val, ok := scriptValueAbbs[normalizeSymbolicValue(propVal)] - if !ok { - return nil, false, fmt.Errorf("unsupported character property value: %v", propVal) - } - if val == scriptValueAbbs[normalizeSymbolicValue(scriptDefaultValue)] { - var allCPs []*CodePointRange - if scriptDefaultRange.From > codePointMin { - allCPs = append(allCPs, &CodePointRange{ - From: codePointMin, - To: scriptDefaultRange.From - 1, - }) - } - if scriptDefaultRange.To < codePointMax { - allCPs = append(allCPs, &CodePointRange{ - From: scriptDefaultRange.To + 1, - To: codePointMax, - }) - } - for _, cp := range scriptCodepoints { - allCPs = append(allCPs, cp...) - } - return allCPs, true, nil - } - return scriptCodepoints[val], false, nil - case "oalpha": - yes, ok := binaryValues[normalizeSymbolicValue(propVal)] - if !ok { - return nil, false, fmt.Errorf("unsupported character property value: %v", propVal) - } - if yes { - return otherAlphabeticCodePoints, false, nil - } else { - return otherAlphabeticCodePoints, true, nil - } - case "olower": - yes, ok := binaryValues[normalizeSymbolicValue(propVal)] - if !ok { - return nil, false, fmt.Errorf("unsupported character property value: %v", propVal) - } - if yes { - return otherLowercaseCodePoints, false, nil - } else { - return otherLowercaseCodePoints, true, nil - } - case "oupper": - yes, ok := binaryValues[normalizeSymbolicValue(propVal)] - if !ok { - return nil, false, fmt.Errorf("unsupported character property value: %v", propVal) - } - if yes { - return otherUppercaseCodePoints, false, nil - } else { - return otherUppercaseCodePoints, true, nil - } - case "wspace": - yes, ok := binaryValues[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) -} |