e8a87b0f50
Standalone grammar-aware translation engine with: - 3-tier verb/noun fallback (JSON locale → irregular maps → regular rules) - 6 built-in i18n.* namespace handlers (label, progress, count, done, fail, numeric) - Nested en.json with gram/prompt/time/lang sections (no flat command keys) - CLDR plural rules for 10 languages - Subject fluent API, number/time formatting, RTL detection - 55 tests passing Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
129 lines
2.9 KiB
Go
129 lines
2.9 KiB
Go
package i18n
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import (
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"bytes"
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"errors"
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"strings"
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"text/template"
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)
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// T translates a message using the default service.
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func T(messageID string, args ...any) string {
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if svc := Default(); svc != nil {
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return svc.T(messageID, args...)
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}
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return messageID
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}
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// Raw translates without i18n.* namespace magic.
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func Raw(messageID string, args ...any) string {
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if svc := Default(); svc != nil {
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return svc.Raw(messageID, args...)
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}
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return messageID
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}
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// ErrServiceNotInitialized is returned when the service is not initialised.
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var ErrServiceNotInitialized = errors.New("i18n: service not initialized")
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// SetLanguage sets the language for the default service.
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func SetLanguage(lang string) error {
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svc := Default()
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if svc == nil {
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return ErrServiceNotInitialized
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}
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return svc.SetLanguage(lang)
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}
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// CurrentLanguage returns the current language code.
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func CurrentLanguage() string {
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if svc := Default(); svc != nil {
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return svc.Language()
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}
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return "en"
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}
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// SetMode sets the translation mode for the default service.
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func SetMode(m Mode) {
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if svc := Default(); svc != nil {
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svc.SetMode(m)
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}
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}
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// CurrentMode returns the current translation mode.
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func CurrentMode() Mode {
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if svc := Default(); svc != nil {
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return svc.Mode()
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}
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return ModeNormal
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}
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// N formats a number using the i18n.numeric.* namespace.
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//
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// N("number", 1234567) // "1,234,567"
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// N("percent", 0.85) // "85%"
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// N("bytes", 1536000) // "1.5 MB"
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// N("ordinal", 1) // "1st"
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func N(format string, value any) string {
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return T("i18n.numeric."+format, value)
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}
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// AddHandler appends a handler to the default service's handler chain.
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func AddHandler(h KeyHandler) {
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if svc := Default(); svc != nil {
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svc.AddHandler(h)
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}
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}
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// PrependHandler inserts a handler at the start of the default service's handler chain.
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func PrependHandler(h KeyHandler) {
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if svc := Default(); svc != nil {
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svc.PrependHandler(h)
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}
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}
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func executeIntentTemplate(tmplStr string, data templateData) string {
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if tmplStr == "" {
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return ""
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}
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if cached, ok := templateCache.Load(tmplStr); ok {
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var buf bytes.Buffer
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if err := cached.(*template.Template).Execute(&buf, data); err != nil {
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return tmplStr
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}
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return buf.String()
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}
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tmpl, err := template.New("").Funcs(TemplateFuncs()).Parse(tmplStr)
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if err != nil {
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return tmplStr
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}
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templateCache.Store(tmplStr, tmpl)
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var buf bytes.Buffer
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if err := tmpl.Execute(&buf, data); err != nil {
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return tmplStr
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}
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return buf.String()
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}
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func applyTemplate(text string, data any) string {
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if !strings.Contains(text, "{{") {
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return text
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}
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if cached, ok := templateCache.Load(text); ok {
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var buf bytes.Buffer
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if err := cached.(*template.Template).Execute(&buf, data); err != nil {
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return text
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}
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return buf.String()
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}
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tmpl, err := template.New("").Parse(text)
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if err != nil {
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return text
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}
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templateCache.Store(text, tmpl)
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var buf bytes.Buffer
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if err := tmpl.Execute(&buf, data); err != nil {
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return text
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}
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return buf.String()
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}
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