convert unicode prime to apostrophe in latex (#52)

Doenet · Oct 29, 2023 · bf37648 · bf37648
1 parent 20e2ca7
commit bf37648
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Showing 2 changed files with 51 additions and 2 deletions.
diff --git a/packages/doenetml-worker/src/utils/math.ts b/packages/doenetml-worker/src/utils/math.ts
@@ -421,6 +421,7 @@ export function normalizeLatexString(
         ["\u2229", " \\cap "], // ∩
         ["\u221E", " \\infty "], // ∞
         ["\u2205", " \\emptyset "], // ∅
+        ["\u2032", "'"], // ′
     ];
 
     for (let sub of substitutions) {

diff --git a/packages/test-cypress/cypress/e2e/tagSpecific/mathinput.cy.js b/packages/test-cypress/cypress/e2e/tagSpecific/mathinput.cy.js
@@ -10702,7 +10702,7 @@ describe("MathInput Tag Tests", function () {
             expect(stateVariables["/a3"].stateValues.value).eq(Infinity);
         });
 
-        cy.log(`unicode µ U+u00B5 becomes mu`);
+        cy.log(`unicode µ U+00B5 becomes mu`);
 
         cy.get(cesc("#\\/a") + " textarea").type(
             "{ctrl+home}{shift+end}{backspace}\u00B5{enter}",
@@ -10744,7 +10744,7 @@ describe("MathInput Tag Tests", function () {
             expect(stateVariables["/a3"].stateValues.value).eq("mu");
         });
 
-        cy.log(`unicode μ U+u03BC becomes mu`);
+        cy.log(`unicode μ U+03BC becomes mu`);
 
         cy.get(cesc("#\\/a") + " textarea").type(
             "{ctrl+home}{shift+end}{backspace}\u03BC{enter}",
@@ -10785,6 +10785,54 @@ describe("MathInput Tag Tests", function () {
             expect(stateVariables["/a2"].stateValues.value).eq("mu");
             expect(stateVariables["/a3"].stateValues.value).eq("mu");
         });
+
+        cy.log(`unicode ′ U+2032 becomes apostrophe`);
+
+        cy.get(cesc("#\\/a") + " textarea").type(
+            "{ctrl+home}{shift+end}{backspace}f\u2032{enter}",
+            { force: true },
+        );
+
+        cy.get(cesc("#\\/a") + " .mq-editable-field").should(
+            "contain.text",
+            "f\u2032",
+        );
+        cy.get(cesc("#\\/a2") + " .mjx-mrow").should("contain.text", "f\u2032");
+        cy.get(cesc("#\\/a3") + " .mjx-mrow").should("contain.text", "f\u2032");
+
+        cy.get(cesc("#\\/a") + " .mq-editable-field")
+            .invoke("text")
+            .then((text) => {
+                expect(text.replace(/[\s\u200B-\u200D\uFEFF]/g, "")).equal(
+                    "f\u2032",
+                );
+            });
+        cy.get(cesc("#\\/a2"))
+            .find(".mjx-mrow")
+            .eq(0)
+            .invoke("text")
+            .then((text) => {
+                expect(text.trim()).equal("f\u2032");
+            });
+        cy.get(cesc("#\\/a3"))
+            .find(".mjx-mrow")
+            .eq(0)
+            .invoke("text")
+            .then((text) => {
+                expect(text.trim()).equal("f\u2032");
+            });
+        cy.window().then(async (win) => {
+            let stateVariables = await win.returnAllStateVariables1();
+            expect(stateVariables["/a"].stateValues.value).eqls(["prime", "f"]);
+            expect(stateVariables["/a2"].stateValues.value).eqls([
+                "prime",
+                "f",
+            ]);
+            expect(stateVariables["/a3"].stateValues.value).eqls([
+                "prime",
+                "f",
+            ]);
+        });
     });
 
     it("exponent with numbers", () => {