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@@ -33,6 +33,7 @@ public sealed class FormatFunction : LuaFunction
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}
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var leftJustify = false;
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+ var plusSign = false;
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var zeroPadding = false;
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var alternateForm = false;
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var blank = false;
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@@ -48,6 +49,9 @@ public sealed class FormatFunction : LuaFunction
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case '-':
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leftJustify = true;
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break;
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+ case '+':
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+ plusSign = true;
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+ break;
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case '0':
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zeroPadding = true;
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break;
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@@ -64,7 +68,7 @@ public sealed class FormatFunction : LuaFunction
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i++;
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}
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- PROCESS_WIDTH:
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+ PROCESS_WIDTH:
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// Process width
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if (char.IsDigit(format[i]))
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@@ -130,6 +134,10 @@ public sealed class FormatFunction : LuaFunction
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break;
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}
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+ if (plusSign && f >= 0)
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+ {
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+ formattedValue = $"+{formattedValue}";
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+ }
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break;
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case 's':
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using (var strBuffer = new PooledArray<LuaValue>(1))
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@@ -209,6 +217,11 @@ public sealed class FormatFunction : LuaFunction
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formattedValue = Convert.ToString(integer, 8);
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break;
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}
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+
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+ if (plusSign && integer >= 0)
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+ {
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+ formattedValue = $"+{formattedValue}";
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+ }
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break;
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default:
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throw new LuaRuntimeException(context.State.GetTraceback(), $"invalid option '%{specifier}' to 'format'");
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