add expression separator ; to support one line variable

autoload/crunch.vim

@@ -78,7 +78,10 @@ function! crunch#eval(exprs) abort "{{{2
 "    Decho '== Inizilation =='
     let s:variables = deepcopy(g:crunch_user_variables, 0)
 
-    let expr_list = split(a:exprs, '\n', 1)
+    let separator_magic = "\t   \t  \t\n"
+
+    let processed_exprs = substitute(a:exprs, ';', separator_magic, 'g')
+    let expr_list = split(processed_exprs, '\n', 1)
 "    Decho 'expr_list = <'.string(expr_list).'>'
 
     for i in range(len(expr_list))
@@ -108,7 +111,9 @@ function! crunch#eval(exprs) abort "{{{2
         let expr_list[i] = s:build_result(orig_expr, result)
     endfor
 "    Decho string(expr_list).'= the expr_lines_list'
-    let expr_lines = join(expr_list, "\n")
+    let expr_separator = "\n"
+    let expr_lines = join(expr_list, expr_separator)
+    let expr_lines = substitute(expr_lines, separator_magic, ';', 'g')
 "    Decho expr_lines.'= the expr_lines'
     let s:variables = {}
     return expr_lines

doc/crunch.txt

@@ -160,6 +160,15 @@ evaluate the expressions and see the results.
 area = pow(radius,2)*pi = 78.5375
 volume = pow(radius,3)*pi*4/3 = 523.583333
 
+Could use ";" to separate different expressions in one line. For the following
+line:
+
+"a = 3; b = 7; c = a * b"
+
+When press `g=i"`, you will get:
+
+"a = 3; b = 7; c = a * b = 21"
+
 ------------------------------------------------------------------------------
 User defined variables.
 

test/operator.vader

@@ -21,6 +21,13 @@ Expect:
   5*5 = 25
 ##############################################################################
 Given:
+  a = 3; b = 7; c = a*b
+Do (Test Operator: single line with variable):
+  g==
+Expect:
+  a = 3; b = 7; c = a*b = 21
+##############################################################################
+Given:  
   5*5
 Do (Test Operator: inner word):
   g=iW