Merge main and localize surveyor units

locales/ar-SA/opencadstudio.ftl

@@ -3599,6 +3599,7 @@ dimstyle =
     .move-text-outside-first = نقل النص إلى الخارج أولًا
     .period = نقطة
     .space = مسافة
+    .surveyors-units = وحدات المسّاح
 
 style-manager =
     .alignment-spacing = تباعد المحاذاة

locales/bg-BG/opencadstudio.ftl

@@ -3587,6 +3587,7 @@ dimstyle =
     .move-text-outside-first = Първо премести текста навън
     .period = Точка
     .space = Интервал
+    .surveyors-units = Геодезически единици
 
 style-manager =
     .alignment-spacing = Разстояние на подравняване

locales/cs-CZ/opencadstudio.ftl

@@ -3586,6 +3586,7 @@ dimstyle =
     .move-text-outside-first = Nejprve přesuňte text ven
     .period = Období
     .space = Mezerník
+    .surveyors-units = Zeměměřické jednotky
 
 style-manager =
     .alignment-spacing = Rozteč zarovnání

locales/de-DE/opencadstudio.ftl

@@ -3585,6 +3585,7 @@ dimstyle =
     .move-text-outside-first = Zuerst Text nach außen verschieben
     .period = Punkt
     .space = Leerzeichen
+    .surveyors-units = Vermessungseinheiten
 
 style-manager =
     .alignment-spacing = Ausrichtungsabstand

locales/en-US/opencadstudio.ftl

@@ -3588,6 +3588,7 @@ dimstyle =
     .move-text-outside-first = Move text outside first
     .period = Period
     .space = Space
+    .surveyors-units = Surveyor's units
 
 style-manager =
     .alignment-spacing = Alignment spacing

locales/es-ES/opencadstudio.ftl

@@ -3587,6 +3587,7 @@ dimstyle =
     .move-text-outside-first = Mover primero el texto fuera
     .period = Punto
     .space = Espacio
+    .surveyors-units = Unidades de topografía
 
 style-manager =
     .alignment-spacing = Espaciado de alineación

locales/fi-FI/opencadstudio.ftl

@@ -3586,6 +3586,7 @@ dimstyle =
     .move-text-outside-first = Siirrä teksti ensin ulos
     .period = Kausi
     .space = Välilyönti
+    .surveyors-units = Maanmittausyksiköt
 
 style-manager =
     .alignment-spacing = Tasausvälit

locales/fr-FR/opencadstudio.ftl

@@ -3586,6 +3586,7 @@ dimstyle =
     .move-text-outside-first = Déplacer d’abord le texte à l’extérieur
     .period = Point
     .space = Espace
+    .surveyors-units = Unités d’arpentage
 
 style-manager =
     .alignment-spacing = Espacement d’alignement

locales/hi-IN/opencadstudio.ftl

@@ -3575,6 +3575,7 @@ dimstyle =
     .move-text-outside-first = पहले पाठ बाहर ले जाएँ
     .period = दशमलव बिंदु
     .space = रिक्त स्थान
+    .surveyors-units = सर्वेक्षण इकाइयाँ
 
 style-manager =
     .alignment-spacing = संरेखण अंतराल

locales/hu-HU/opencadstudio.ftl

@@ -3586,6 +3586,7 @@ dimstyle =
     .move-text-outside-first = Először mozgassa ki a szöveget
     .period = Időszak
     .space = Szóköz
+    .surveyors-units = Földmérési egységek
 
 style-manager =
     .alignment-spacing = Igazítási távolság

locales/it-IT/opencadstudio.ftl

@@ -3586,6 +3586,7 @@ dimstyle =
     .move-text-outside-first = Sposta prima il testo all'esterno
     .period = Periodo
     .space = Spazio
+    .surveyors-units = Unità topografiche
 
 style-manager =
     .alignment-spacing = Spaziatura di allineamento

locales/ja-JP/opencadstudio.ftl

@@ -3575,6 +3575,7 @@ dimstyle =
     .move-text-outside-first = 先に寸法値を外側へ移動
     .period = ピリオド
     .space = 空白
+    .surveyors-units = 測量単位
 
 style-manager =
     .alignment-spacing = 位置合わせ間隔

locales/ko-KR/opencadstudio.ftl

@@ -3586,6 +3586,7 @@ dimstyle =
     .move-text-outside-first = 먼저 텍스트를 외부로 이동하세요.
     .period = 기간
     .space = 스페이스바
+    .surveyors-units = 측량 단위
 
 style-manager =
     .alignment-spacing = 정렬 간격

locales/nl-NL/opencadstudio.ftl

@@ -3587,6 +3587,7 @@ dimstyle =
     .move-text-outside-first = Eerst tekst naar buiten verplaatsen
     .period = Punt
     .space = Spatie
+    .surveyors-units = Landmeeteenheden
 
 style-manager =
     .alignment-spacing = Uitlijningsafstand

locales/pl-PL/opencadstudio.ftl

@@ -3586,6 +3586,7 @@ dimstyle =
     .move-text-outside-first = Najpierw przenieś tekst na zewnątrz
     .period = Okres
     .space = Spacja
+    .surveyors-units = Jednostki geodezyjne
 
 style-manager =
     .alignment-spacing = Rozstaw wyrównania

locales/pt-BR/opencadstudio.ftl

@@ -3587,6 +3587,7 @@ dimstyle =
     .move-text-outside-first = Mover primeiro o texto para fora
     .period = Ponto
     .space = Espaço
+    .surveyors-units = Unidades de agrimensura
 
 style-manager =
     .alignment-spacing = Espaçamento de alinhamento

locales/ru-RU/opencadstudio.ftl

@@ -3590,6 +3590,7 @@ dimstyle =
     .move-text-outside-first = Сначала вынести текст
     .period = Точка
     .space = Пробел
+    .surveyors-units = Геодезические единицы
 
 style-manager =
     .alignment-spacing = Интервал выравнивания

locales/tr-TR/opencadstudio.ftl

@@ -3511,6 +3511,7 @@ dimstyle =
     .move-text-outside-first = Önce metni dışarı taşı
     .period = Nokta
     .space = Boşluk
+    .surveyors-units = Haritacılık birimleri
 
 style-manager =
     .alignment-spacing = Hizalama aralığı

locales/zh-CN/opencadstudio.ftl

@@ -3570,6 +3570,7 @@ dimstyle =
     .move-text-outside-first = 优先将文字移到外部
     .period = 句点
     .space = 空格
+    .surveyors-units = 测量单位
 
 style-manager =
     .alignment-spacing = 对齐间距

locales/zh-TW/opencadstudio.ftl

@@ -3582,6 +3582,7 @@ dimstyle =
     .move-text-outside-first = 優先將文字移到外部
     .period = 句點
     .space = 空白鍵
+    .surveyors-units = 測量單位
 
 style-manager =
     .alignment-spacing = 對齊間距

src/app/expr_eval.rs

@@ -207,7 +207,13 @@ impl Parser {
         Ok(left)
     }
 
-    // power → unary ('^' unary)?
+    // power → unary ('^' power)?
+    //
+    // The exponent recurses into `parse_power`, not `parse_unary`, so `^` is
+    // right-associative — `2^3^2` is `2^(3^2)`, the standard reading. Binding
+    // it to the left both gave the wrong number and left the trailing `^2`
+    // unconsumed, which the caller's scan then handed back as literal text:
+    // `2^3^2` evaluated to the string "8^2" instead of 512.
     fn parse_power(&mut self, depth: usize) -> Result<f64, ()> {
         if depth > MAX_RECURSION {
             return Err(());
@@ -215,7 +221,7 @@ impl Parser {
         let base = self.parse_unary(depth + 1)?;
         if let Some(Token::Caret) = self.peek() {
             self.advance();
-            let exp = self.parse_unary(depth + 1)?;
+            let exp = self.parse_power(depth + 1)?;
             return Ok(base.powf(exp));
         }
         Ok(base)
@@ -591,6 +597,21 @@ mod tests {
         assert_eq!(eval_to_string("(((10)))"), "10");
     }
 
+    // `^` is right-associative, so a chained exponent evaluates as one number
+    // instead of stopping at the first `^` and leaving the rest as text.
+    #[test]
+    fn power_is_right_associative() {
+        assert_eq!(eval_to_string("2^3^2"), "512");
+        assert_eq!(eval_to_string("2^3^2+1"), "513");
+        assert_eq!(eval_to_string("4^0.5^2"), "1.4142135623730951"); // 4^(1/4)
+        assert_eq!(eval_to_string("2^2^2^2"), "65536");
+        // A single exponent, and a parenthesised one, are unaffected.
+        assert_eq!(eval_to_string("2^3"), "8");
+        assert_eq!(eval_to_string("2^(3^2)"), "512");
+        assert_eq!(eval_to_string("(2^3)^2"), "64");
+        assert_eq!(eval_to_string("2^-1"), "0.5");
+    }
+
     #[test]
     fn unary_ops() {
         assert_eq!(eval_to_string("--5"), "5");

src/entities/dimension.rs

@@ -3803,28 +3803,45 @@ fn tessellate_dimension_inner(
     );
 
     // Per-spec colours: DIMCLRD (dim/arrows), DIMCLRE (ext), DIMCLRT (text).
-    // 0=ByBlock and 256=ByLayer fall through to entity_color. DIMCLRD also
+    // 0=ByBlock and 256=ByLayer fall through to entity_color. Each honours the
-    // honours a per-object ACAD_DSTYLE override (code 176) so an edited
+    // per-object ACAD_DSTYLE override (codes 176/177/178) the Properties panel
-    // dim-line colour renders even without touching the style.
+    // reads and writes, so an edited colour renders without touching the style.
+    let xd = &dim.base().common.extended_data;
     let dim_color = if selected {
         WireModel::SELECTED
     } else {
-        let dim_clr = crate::entities::dim_override::int(
+        resolve_dim_color(
-            &dim.base().common.extended_data,
+            dim_color_index(
-            crate::entities::dim_override::DIMCLRD,
+                xd,
+                crate::entities::dim_override::DIMCLRD,
+                style.map(|s| s.dimclrd).unwrap_or(0),
+            ),
+            entity_color,
         )
-        .unwrap_or_else(|| style.map(|s| s.dimclrd).unwrap_or(0));
-        resolve_dim_color(dim_clr, entity_color)
     };
     let ext_color = if selected {
         WireModel::SELECTED
     } else {
-        resolve_dim_color(style.map(|s| s.dimclre).unwrap_or(0), entity_color)
+        resolve_dim_color(
+            dim_color_index(
+                xd,
+                crate::entities::dim_override::DIMCLRE,
+                style.map(|s| s.dimclre).unwrap_or(0),
+            ),
+            entity_color,
+        )
     };
     let text_color = if selected {
         entity_color // text wire color set by inner tessellate; keep entity tint
     } else {
-        resolve_dim_color(style.map(|s| s.dimclrt).unwrap_or(0), entity_color)
+        resolve_dim_color(
+            dim_color_index(
+                xd,
+                crate::entities::dim_override::DIMCLRT,
+                style.map(|s| s.dimclrt).unwrap_or(0),
+            ),
+            entity_color,
+        )
     };
 
     let snap_pts = dimension_snap_pts(dim);
@@ -4194,6 +4211,18 @@ fn tessellate_dimension_inner(
 
     wires
 }
+/// The ACI index a dimension colour renders with: the per-object ACAD_DSTYLE
+/// override when the entity carries one, else the dimension style's value.
+/// The Properties panel reads and writes these same overrides, so the renderer
+/// has to consult them or an edited colour shows in the panel and nowhere else.
+fn dim_color_index(
+    xd: &acadrust::xdata::ExtendedData,
+    code: i16,
+    inherited: i16,
+) -> i16 {
+    crate::entities::dim_override::int(xd, code).unwrap_or(inherited)
+}
+
 fn resolve_dim_color(idx: i16, fallback: [f32; 4]) -> [f32; 4] {
     // DIMCLR* convention: 0 = BYBLOCK, 256 = BYLAYER → entity colour wins.
     if idx == 0 || idx == 256 {
@@ -6432,10 +6461,16 @@ fn format_with_unit(
 }
 
 fn format_engineering(inches: f64, dec: usize) -> String {
-    let sign = if inches < 0.0 { "-" } else { "" };
+    // Round to the printed precision *first*, then split, so inches that round
-    let abs = inches.abs();
+    // up to a full foot carry into the feet instead of printing an
-    let feet = (abs / 12.0).trunc();
+    // out-of-range "2'-12.00"". Same reasoning as `format_architectural`,
-    let rem_in = abs - feet * 12.0;
+    // where the grid is the fraction denominator rather than a decimal place.
+    let scale = 10f64.powi(dec.min(15) as i32);
+    let ticks = (inches.abs() * scale).round();
+    let per_foot = 12.0 * scale;
+    let sign = if inches < 0.0 && ticks != 0.0 { "-" } else { "" };
+    let feet = (ticks / per_foot).trunc();
+    let rem_in = (ticks - feet * per_foot) / scale;
     format!("{}{:.0}'-{:.*}\"", sign, feet, dec, rem_in)
 }
 
@@ -7349,9 +7384,71 @@ mod angular_unit_tests {
     }
 }
 
+#[cfg(test)]
+mod dim_color_override_tests {
+    use super::dim_color_index;
+    use crate::entities::dim_override::{DIMCLRD, DIMCLRE, DIMCLRT};
+    use acadrust::xdata::{ExtendedData, ExtendedDataRecord, XDataValue};
+
+    // An ACAD/DSTYLE record holding the overrides the Properties panel writes.
+    fn xdata(overrides: &[(i16, i16)]) -> ExtendedData {
+        let mut values = vec![
+            XDataValue::String("DSTYLE".to_string()),
+            XDataValue::ControlString("{".to_string()),
+        ];
+        for (code, aci) in overrides {
+            values.push(XDataValue::Integer16(*code));
+            values.push(XDataValue::Integer16(*aci));
+        }
+        values.push(XDataValue::ControlString("}".to_string()));
+        let mut record = ExtendedDataRecord::new("ACAD");
+        for value in values {
+            record.add_value(value);
+        }
+        let mut xd = ExtendedData::new();
+        xd.add_record(record);
+        xd
+    }
+
+    // Every dim colour honours its per-object override, not just DIMCLRD.
+    // Text and extension-line colours edited on the Properties panel used to
+    // show there and render with the style/layer colour anyway. (#898)
+    #[test]
+    fn override_wins_over_style_for_every_dim_colour() {
+        let xd = xdata(&[(DIMCLRD, 1), (DIMCLRE, 3), (DIMCLRT, 5)]);
+        assert_eq!(dim_color_index(&xd, DIMCLRD, 256), 1);
+        assert_eq!(dim_color_index(&xd, DIMCLRE, 256), 3);
+        assert_eq!(dim_color_index(&xd, DIMCLRT, 256), 5);
+    }
+
+    // Only the overridden variable changes; the rest still inherit the style.
+    #[test]
+    fn absent_override_falls_back_to_the_style_value() {
+        let xd = xdata(&[(DIMCLRT, 5)]);
+        assert_eq!(dim_color_index(&xd, DIMCLRT, 256), 5);
+        assert_eq!(dim_color_index(&xd, DIMCLRD, 7), 7);
+        assert_eq!(dim_color_index(&xd, DIMCLRE, 256), 256);
+    }
+
+    // An entity with no override record at all is unaffected.
+    #[test]
+    fn no_record_uses_the_style_value() {
+        let xd = ExtendedData::new();
+        assert_eq!(dim_color_index(&xd, DIMCLRT, 2), 2);
+    }
+
+    // ByLayer (256) and ByBlock (0) stay meaningful as override values, so an
+    // explicit "back to ByLayer" edit is not mistaken for "no override".
+    #[test]
+    fn bylayer_override_is_kept() {
+        let xd = xdata(&[(DIMCLRT, 256)]);
+        assert_eq!(dim_color_index(&xd, DIMCLRT, 5), 256);
+    }
+}
+
 #[cfg(test)]
 mod arch_format_tests {
-    use super::{format_architectural, format_fractional};
+    use super::{format_architectural, format_engineering, format_fractional};
 
     // A 3ft object that measures 35.99" (float noise) must carry the rounded
     // fraction up through inches into feet — not print "2'-11 1"". (Regression
@@ -7384,4 +7481,27 @@ mod arch_format_tests {
         assert_eq!(format_fractional(11.999, 4, 2), "12");
         assert_eq!(format_fractional(6.5, 4, 2), "6 1/2");
     }
+
+    // Engineering units round to DIMDEC before the feet/inches split, so a
+    // remainder that rounds up to 12" carries instead of printing "2'-12.00"".
+    #[test]
+    fn engineering_carries_inches_up_to_feet() {
+        assert_eq!(format_engineering(35.999, 2), "3'-0.00\"");
+        assert_eq!(format_engineering(11.999, 2), "1'-0.00\"");
+        assert_eq!(format_engineering(11.9, 0), "1'-0\"");
+    }
+
+    #[test]
+    fn engineering_normal_values_unchanged() {
+        assert_eq!(format_engineering(30.5, 2), "2'-6.50\"");
+        assert_eq!(format_engineering(36.0, 2), "3'-0.00\"");
+        assert_eq!(format_engineering(0.0, 2), "0'-0.00\"");
+        assert_eq!(format_engineering(-30.25, 2), "-2'-6.25\"");
+    }
+
+    // A magnitude that rounds away to zero must not keep a lone minus sign.
+    #[test]
+    fn engineering_negative_zero_has_no_sign() {
+        assert_eq!(format_engineering(-0.001, 2), "0'-0.00\"");
+    }
 }

src/locale_catalog.rs

@@ -3224,6 +3224,7 @@ pub(super) fn message_attribute(source: &str) -> Option<(&'static str, &'static
         "Suppress second extension line" => Some(("dimstyle", "suppress-second-extension-line")),
         "Suppress zero feet and zero inches" => Some(("dimstyle", "suppress-zero-feet-and-inches")),
         "Suppress zero feet; show zero inches" => Some(("dimstyle", "suppress-zero-feet-show-zero-inches")),
+        "Surveyor's units" => Some(("dimstyle", "surveyors-units")),
         "Symbols and Arrows" => Some(("dimstyle", "symbols-and-arrows")),
         "Symmetrical" => Some(("dimstyle", "symmetrical")),
         "Text background" => Some(("dimstyle", "text-background")),