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go-arg
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extract common colWidth constant

This commit is contained in:
Alex Flint 2016-01-18 08:24:21 -08:00
parent 77be03b907
commit 4197d283e4
1 changed files with 3 additions and 4 deletions
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7
usage.go
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@ -9,6 +9,9 @@ import (
"strings" "strings"
) )
// the width of the left column
const colWidth = 25
// Fail prints usage information to stderr and exits with non-zero status // Fail prints usage information to stderr and exits with non-zero status
func (p *Parser) Fail(msg string) { func (p *Parser) Fail(msg string) {
p.WriteUsage(os.Stderr) p.WriteUsage(os.Stderr)
@ -69,9 +72,6 @@ func (p *Parser) WriteHelp(w io.Writer) {
p.WriteUsage(w) p.WriteUsage(w)
// the width of the left column
const colWidth = 25
// write the list of positionals // write the list of positionals
if len(positionals) > 0 { if len(positionals) > 0 {
fmt.Fprint(w, "\npositional arguments:\n") fmt.Fprint(w, "\npositional arguments:\n")
@ -101,7 +101,6 @@ func (p *Parser) WriteHelp(w io.Writer) {
} }
func printOption(w io.Writer, spec *spec) { func printOption(w io.Writer, spec *spec) {
const colWidth = 25
left := " " + synopsis(spec, "--"+spec.long) left := " " + synopsis(spec, "--"+spec.long)
if spec.short != "" { if spec.short != "" {
left += ", " + synopsis(spec, "-"+spec.short) left += ", " + synopsis(spec, "-"+spec.short)