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fix script matching bug.

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This commit is contained in:
fiatjaf
2023-12-25 22:52:05 -03:00
parent a7b56f046b
commit 1044c31900
1 changed files with 17 additions and 15 deletions
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32
image_utils.go
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@@ -18,11 +18,12 @@ import (
"github.com/pemistahl/lingua-go"
)
const nSupportedScripts = 11
const nSupportedScripts = 12
var (
supportedScripts = [nSupportedScripts]language.Script{
language.Unknown,
language.Latin,
language.Hiragana,
language.Katakana,
language.Hebrew,
@@ -62,8 +63,8 @@ func initializeImageDrawingStuff() error {
).WithLowAccuracyMode().Build()
// script detector material
for ssi, script := range supportedScripts {
for _, srange := range language.ScriptRanges {
for _, srange := range language.ScriptRanges {
for ssi, script := range supportedScripts {
if srange.Script == script {
scriptRanges = append(scriptRanges, ScriptRange{
Start: srange.Start,
@@ -86,16 +87,17 @@ func initializeImageDrawingStuff() error {
return face
}
fontMap[0] = loadFont("fonts/NotoSans.ttf")
fontMap[1] = loadFont("fonts/NotoSansJP.ttf")
fontMap[2] = fontMap[1]
fontMap[3] = loadFont("fonts/NotoSansHebrew.ttf")
fontMap[4] = loadFont("fonts/NotoSansThai.ttf")
fontMap[5] = loadFont("fonts/NotoSansArabic.ttf")
fontMap[6] = loadFont("fonts/NotoSansDevanagari.ttf")
fontMap[7] = loadFont("fonts/NotoSansBengali.ttf")
fontMap[8] = loadFont("fonts/NotoSansJavanese.ttf")
fontMap[9] = loadFont("fonts/NotoSansSC.ttf")
fontMap[10] = loadFont("fonts/NotoSansKR.ttf")
fontMap[1] = fontMap[0]
fontMap[2] = loadFont("fonts/NotoSansJP.ttf")
fontMap[3] = fontMap[1]
fontMap[4] = loadFont("fonts/NotoSansHebrew.ttf")
fontMap[5] = loadFont("fonts/NotoSansThai.ttf")
fontMap[6] = loadFont("fonts/NotoSansArabic.ttf")
fontMap[7] = loadFont("fonts/NotoSansDevanagari.ttf")
fontMap[8] = loadFont("fonts/NotoSansBengali.ttf")
fontMap[9] = loadFont("fonts/NotoSansJavanese.ttf")
fontMap[10] = loadFont("fonts/NotoSansSC.ttf")
fontMap[11] = loadFont("fonts/NotoSansKR.ttf")
emojiFont = loadFont("fonts/NotoEmoji.ttf")
return nil
@@ -167,7 +169,7 @@ func getLanguageAndScriptAndDirectionAndFont(paragraph []rune) (
for l := 0; l < nLetters; l++ {
idx := lookupScript(paragraph[l])
ranking[idx]++
if l > threshold && ranking[idx] > threshold {
if idx > 0 && l > threshold && ranking[idx] > threshold {
script = supportedScripts[idx]
face = fontMap[idx]
goto gotScript
@@ -249,7 +251,7 @@ func lookupScript(r rune) int {
} else if entry.End < r {
i = h + 1
} else {
return h // position in supportedScripts
return entry.Pos // position in supportedScripts
}
}
return 0 // unknown