rename calculator.go -> calc.go

1 files changed, 0 insertions, 63 deletions

diff --git a/calculator.go b/calculator.go
deleted file mode 100644
index 8afc43a..0000000
--- a/calculator.go
+++ /dev/null
@@ -1,63 +0,0 @@
-package main
-
-import (
-	"strconv"
-	"strings"
-)
-
-type Calculator struct {
-	stack Stack
-	buf   string
-}
-
-// swap swaps the values of the buffer and the bottom element of the stack. If
-// the buffer is empty this simply pops from the stack. If the stack is empty,
-// this simply pushes to the stack.
-func (c *Calculator) swap() {
-	st := c.stack.pop()
-	if con := parseConstant(c.buf); con != nil {
-		c.stack.push(*con)
-	} else if f, err := strconv.ParseFloat(c.buf, 64); err == nil {
-		c.stack.push(f)
-	}
-	if st != nil {
-		c.buf = strings.TrimSpace(printNum(*st))
-	} else {
-		c.buf = ""
-	}
-}
-
-// negate negates the number in the buffer, if any; or the bottom number on the
-// stack, if any.
-func (c *Calculator) negate() {
-	if con := parseConstant(c.buf); con != nil {
-		c.buf = strings.TrimSpace(printNum(-*con))
-	} else if f, err := strconv.ParseFloat(c.buf, 64); err == nil {
-		c.buf = strings.TrimSpace(printNum(-f))
-	} else if len(c.buf) == 0 && len(c.stack) > 0 {
-		c.stack[len(c.stack)-1] = -c.stack[len(c.stack)-1]
-	}
-}
-
-// performOp performs the specified arithmetic operation and returns nil or
-// OpError if op is not a valid operator.
-func (c *Calculator) performOp(op byte) error {
-	if len(c.stack) < 1 {
-		return nil
-	}
-
-	fn, err := parseOp(op)
-	if err != nil {
-		return err
-	}
-
-	if con := parseConstant(c.buf); con != nil {
-		fn(&c.stack[len(c.stack)-1], *con)
-	} else if fl, err := strconv.ParseFloat(c.buf, 64); err == nil {
-		fn(&c.stack[len(c.stack)-1], fl)
-	} else if len(c.stack) > 1 {
-		fn(&c.stack[len(c.stack)-2], *c.stack.pop())
-	}
-	c.buf = ""
-	return nil
-}