feat: implement matrix indexing

mgreminger · Jul 9, 2023 · c0d29a1 · c0d29a1
1 parent 93132b2
commit c0d29a1
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Showing 4 changed files with 295 additions and 225 deletions.
diff --git a/src/parser/LatexParser.g4 b/src/parser/LatexParser.g4
@@ -70,6 +70,7 @@ expr: <assoc=right> id CARET_SINGLE_CHAR_ID_UNDERSCORE_SUBSCRIPT            #exp
     | <assoc=right> id CARET L_BRACE expr R_BRACE UNDERSCORE_SUBSCRIPT      #exponent
     | <assoc=right> expr (CARET_SINGLE_CHAR_ID | CARET_SINGLE_CHAR_NUMBER)  #exponent
     | <assoc=right> expr CARET L_BRACE expr R_BRACE                         #exponent
+    | expr UNDERSCORE L_BRACE expr COMMA expr R_BRACE                       #index
     | CMD_SQRT_INT                                                          #singleIntSqrt
     | CMD_SQRT L_BRACE expr R_BRACE                                         #sqrt
     | BEGIN_MATRIX matrix_row (DOUBLE_BACKSLASH matrix_row)* END_MATRIX     #matrix