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5 Commits
feature/ad
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feature/ad
| Author | SHA1 | Date | |
|---|---|---|---|
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54d59c81a2 | ||
| 768803072b | |||
| 243a4f762f | |||
| 11eabee480 | |||
| ad3a49715c |
16
calc.go
16
calc.go
@@ -121,27 +121,19 @@ func (c *Calc) GetCompleteCustomFuncalls() func(string) []string {
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}
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}
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for command := range c.SettingsCommands {
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for command := range c.SettingsCommands {
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if len(command) > 1 {
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completions = append(completions, command)
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completions = append(completions, command)
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}
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}
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}
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for command := range c.ShowCommands {
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for command := range c.ShowCommands {
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if len(command) > 1 {
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completions = append(completions, command)
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completions = append(completions, command)
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}
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}
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}
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for command := range c.StackCommands {
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for command := range c.StackCommands {
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if len(command) > 1 {
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completions = append(completions, command)
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completions = append(completions, command)
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}
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}
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}
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for command := range c.Commands {
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for command := range c.Commands {
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if len(command) > 1 {
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completions = append(completions, command)
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completions = append(completions, command)
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}
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}
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}
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return completions
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return completions
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113
command.go
113
command.go
@@ -18,12 +18,8 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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package main
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package main
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import (
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import (
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"bufio"
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"fmt"
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"fmt"
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"os"
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"os"
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"os/exec"
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"strconv"
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"strings"
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)
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)
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type CommandFunction func(*Calc)
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type CommandFunction func(*Calc)
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@@ -188,102 +184,6 @@ func (c *Calc) SetCommands() {
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}
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}
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},
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},
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),
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),
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"edit": NewCommand(
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"edit the stack interactively",
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func(c *Calc) {
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if c.stack.Len() == 0 {
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fmt.Println("empty stack")
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return
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}
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c.stack.Backup()
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// put the stack contents into a tmp file
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tmp, err := os.CreateTemp("", "stack")
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if err != nil {
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fmt.Println(err)
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return
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}
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defer os.Remove(tmp.Name())
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comment := `# add or remove numbers as you wish.
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# each number must be on its own line.
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# numbers must be floating point formatted.
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`
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_, err = tmp.WriteString(comment)
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if err != nil {
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fmt.Println(err)
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return
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}
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for _, item := range c.stack.All() {
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_, err = fmt.Fprintf(tmp, "%f\n", item)
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if err != nil {
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fmt.Println(err)
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return
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}
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}
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tmp.Close()
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// determine which editor to use
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editor := "vi"
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enveditor, present := os.LookupEnv("EDITOR")
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if present {
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if editor != "" {
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if _, err := os.Stat(editor); err == nil {
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editor = enveditor
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}
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}
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}
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// execute editor with our tmp file containing current stack
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cmd := exec.Command(editor, tmp.Name())
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cmd.Stdin = os.Stdin
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cmd.Stdout = os.Stdout
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cmd.Stderr = os.Stderr
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err = cmd.Run()
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if err != nil {
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fmt.Println("could not run editor command: ", err)
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return
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}
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// read the file back in
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modified, err := os.Open(tmp.Name())
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if err != nil {
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fmt.Println("Error opening file:", err)
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return
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}
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defer modified.Close()
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// reset the stack
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c.stack.Clear()
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// and put the new contents (if legit) back onto the stack
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scanner := bufio.NewScanner(modified)
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for scanner.Scan() {
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line := strings.TrimSpace(c.Comment.ReplaceAllString(scanner.Text(), ""))
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if line == "" {
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continue
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}
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num, err := strconv.ParseFloat(line, 64)
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if err != nil {
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fmt.Printf("%s is not a floating point number!\n", line)
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continue
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}
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c.stack.Push(num)
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}
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if err := scanner.Err(); err != nil {
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fmt.Println("Error reading from file:", err)
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}
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},
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),
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}
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}
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// general commands
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// general commands
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@@ -305,15 +205,6 @@ func (c *Calc) SetCommands() {
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// aliases
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// aliases
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c.Commands["quit"] = c.Commands["exit"]
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c.Commands["quit"] = c.Commands["exit"]
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c.SettingsCommands["undebug"] = c.SettingsCommands["nodebug"]
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c.SettingsCommands["d"] = c.SettingsCommands["debug"]
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c.SettingsCommands["show"] = c.SettingsCommands["showstack"]
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c.SettingsCommands["b"] = c.SettingsCommands["batch"]
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c.SettingsCommands["s"] = c.SettingsCommands["showstack"]
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c.ShowCommands["h"] = c.ShowCommands["history"]
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c.ShowCommands["p"] = c.ShowCommands["dump"]
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c.ShowCommands["v"] = c.ShowCommands["vars"]
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c.StackCommands["c"] = c.StackCommands["clear"]
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c.StackCommands["u"] = c.StackCommands["undo"]
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}
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}
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2
main.go
2
main.go
@@ -30,7 +30,7 @@ import (
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lua "github.com/yuin/gopher-lua"
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lua "github.com/yuin/gopher-lua"
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)
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)
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const VERSION string = "2.0.11"
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const VERSION string = "2.0.10"
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const Usage string = `This is rpn, a reverse polish notation calculator cli.
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const Usage string = `This is rpn, a reverse polish notation calculator cli.
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14
rpn.go
14
rpn.go
@@ -185,8 +185,7 @@ DESCRIPTION
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Stack manipulation commands: clear clear the whole stack shift remove
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Stack manipulation commands: clear clear the whole stack shift remove
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the last element of the stack reverse reverse the stack elements swap
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the last element of the stack reverse reverse the stack elements swap
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exchange the last two stack elements dup duplicate last stack item undo
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exchange the last two stack elements dup duplicate last stack item undo
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undo last operation edit edit the stack interactively using vi or
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undo last operation
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$EDITOR
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Other commands: help|? show this message manual show manual
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Other commands: help|? show this message manual show manual
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quit|exit|c-d|c-c exit program
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quit|exit|c-d|c-c exit program
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@@ -198,17 +197,6 @@ DESCRIPTION
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Refer to https://pkg.go.dev/math for details about those functions.
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Refer to https://pkg.go.dev/math for details about those functions.
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There are also a number of shortcuts for some commands available:
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d debug
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b batch
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s showstack
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h history
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p dump (aka print)
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v vars
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c clear
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u undo
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INTERACTIVE REPL
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INTERACTIVE REPL
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While you can use rpn in the command-line, the best experience you'll
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While you can use rpn in the command-line, the best experience you'll
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have is the interactive repl (read eval print loop). Just execute "rpn"
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have is the interactive repl (read eval print loop). Just execute "rpn"
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12
rpn.pod
12
rpn.pod
@@ -198,7 +198,6 @@ Stack manipulation commands:
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swap exchange the last two stack elements
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swap exchange the last two stack elements
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dup duplicate last stack item
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dup duplicate last stack item
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undo undo last operation
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undo undo last operation
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edit edit the stack interactively using vi or $EDITOR
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Other commands:
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Other commands:
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help|? show this message
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help|? show this message
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@@ -213,17 +212,6 @@ Register variables:
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Refer to https://pkg.go.dev/math for details about those functions.
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Refer to https://pkg.go.dev/math for details about those functions.
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There are also a number of shortcuts for some commands available:
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d debug
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b batch
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s showstack
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h history
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p dump (aka print)
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v vars
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c clear
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u undo
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=head1 INTERACTIVE REPL
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=head1 INTERACTIVE REPL
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While you can use rpn in the command-line, the best experience you'll
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While you can use rpn in the command-line, the best experience you'll
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Reference in New Issue
Block a user