Update

Author: odow

src/FileFormats/LP/read.jl

@@ -664,7 +664,7 @@ function _parse_quad_expression(
         end
     end
     t = _next_non_newline(state)
-    if t.kind == _TOKEN_DIVISION
+    if t !== nothing && t.kind == _TOKEN_DIVISION
         _skip_newlines(state)
         _ = read(state, _Token, _TOKEN_DIVISION) # /
         # Must be /2
@@ -729,7 +729,10 @@ function _parse_term(
             # This could either be NUMBER \nEND-OF-TERM, or it could be a term
             # split by a new line, like `2\nx`.
             t = _next_non_newline(state)
-            if t.kind == _TOKEN_MULTIPLICATION
+            if t === nothing
+                # NUMBER
+                return coef
+            elseif t.kind == _TOKEN_MULTIPLICATION
                 # NUMBER \n * [\n] IDENTIFIER
                 _skip_newlines(state)
                 _ = read(state, _Token, _TOKEN_MULTIPLICATION)

test/FileFormats/LP/LP.jl

@@ -1613,6 +1613,40 @@ function test_parse_newline_in_objective_expression()
     return
 end
 
+function test_parse_subject_eof()
+    io = IOBuffer("maximize\nobj:\nsubject")
+    seekstart(io)
+    model = LP.Model()
+    MOI.read!(io, model)
+    x = MOI.get(model, MOI.VariableIndex, "subject")
+    @test x isa MOI.VariableIndex
+    return
+end
+
+function test_parse_expr_eof()
+    io = IOBuffer("maximize\nobj: x + 2\n")
+    seekstart(io)
+    model = LP.Model()
+    MOI.read!(io, model)
+    x = MOI.get(model, MOI.VariableIndex, "x")
+    f = 1.0 * x + 2.0
+    g = MOI.get(model, MOI.ObjectiveFunction{typeof(f)}())
+    @test isapprox(f, g)
+    return
+end
+
+function test_parse_quadratic_expr_eof()
+    io = IOBuffer("maximize\nobj: [x * x]\n")
+    seekstart(io)
+    model = LP.Model()
+    MOI.read!(io, model)
+    x = MOI.get(model, MOI.VariableIndex, "x")
+    f = 1.0 * x * x
+    g = MOI.get(model, MOI.ObjectiveFunction{typeof(f)}())
+    @test isapprox(f, g)
+    return
+end
+
 end  # module
 
 TestLP.runtests()