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Display: add option --fraction-ndigits

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to control number of digits to print when formatting ordinary fraction numbers
This commit is contained in:
李通洲
2025-07-16 10:30:45 +08:00
parent 6851e7b082
commit 468d1e0903
5 changed files with 61 additions and 2 deletions
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src/common/format.c
+9 -2
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@@ -32,10 +32,16 @@ void ffFormatAppendFormatArg(FFstrbuf* buffer, const FFformatarg* formatarg)
ffStrbufAppend(buffer, (FFstrbuf*)formatarg->value);
break;
case FF_FORMAT_ARG_TYPE_FLOAT:
ffStrbufAppendF(buffer, "%f", *(float*)formatarg->value);
if (instance.config.display.fractionNdigits >= 0)
ffStrbufAppendF(buffer, "%.*f", instance.config.display.fractionNdigits, *(float*)formatarg->value);
else
ffStrbufAppendF(buffer, "%g", *(float*)formatarg->value);
break;
case FF_FORMAT_ARG_TYPE_DOUBLE:
ffStrbufAppendF(buffer, "%g", *(double*)formatarg->value);
if (instance.config.display.fractionNdigits >= 0)
ffStrbufAppendF(buffer, "%.*f", instance.config.display.fractionNdigits, *(double*)formatarg->value);
else
ffStrbufAppendF(buffer, "%g", *(double*)formatarg->value);
break;
case FF_FORMAT_ARG_TYPE_BOOL:
ffStrbufAppendS(buffer, *(bool*)formatarg->value ? "true" : "false");
@@ -108,6 +114,7 @@ static inline bool formatArgSet(const FFformatarg* arg)
{
return arg->value != NULL && (
(arg->type == FF_FORMAT_ARG_TYPE_DOUBLE && *(double*)arg->value > 0.0) || //Also is false for NaN
(arg->type == FF_FORMAT_ARG_TYPE_FLOAT && *(float*)arg->value > 0.0) || //Also is false for NaN
(arg->type == FF_FORMAT_ARG_TYPE_INT && *(int*)arg->value > 0) ||
(arg->type == FF_FORMAT_ARG_TYPE_STRBUF && ((FFstrbuf*)arg->value)->length > 0) ||
(arg->type == FF_FORMAT_ARG_TYPE_STRING && ffStrSet((char*)arg->value)) ||