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add TrimPrefix, ToUpper, and ToLower template funcs #143

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Sep 20, 2024
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add TrimPrefix, ToUpper, and ToLower template funcs #143

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3 changes: 3 additions & 0 deletions golink.go
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Original file line number Diff line number Diff line change
Expand Up @@ -651,7 +651,10 @@ func (e expandEnv) User() (string, error) {
var expandFuncMap = texttemplate.FuncMap{
"PathEscape": url.PathEscape,
"QueryEscape": url.QueryEscape,
"TrimPrefix": strings.TrimPrefix,
"TrimSuffix": strings.TrimSuffix,
"ToLower": strings.ToLower,
"ToUpper": strings.ToUpper,
"Match": regexMatch,
}

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18 changes: 18 additions & 0 deletions golink_test.go
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Expand Up @@ -411,12 +411,30 @@ func TestExpandLink(t *testing.T) {
remainder: "a/b+c",
want: "http://host.com/a%2Fb%2Bc",
},
{
name: "template-with-trimprefix-func",
long: `http://host.com/{{TrimPrefix .Path "BUG-"}}`,
remainder: "BUG-123",
want: "http://host.com/123",
},
{
name: "template-with-trimsuffix-func",
long: `http://host.com/{{TrimSuffix .Path "/"}}`,
remainder: "a/",
want: "http://host.com/a",
},
{
name: "template-with-tolower-func",
long: `http://host.com/{{ToLower .Path}}`,
remainder: "BUG-123",
want: "http://host.com/bug-123",
},
{
name: "template-with-toupper-func",
long: `http://host.com/{{ToUpper .Path}}`,
remainder: "bug-123",
want: "http://host.com/BUG-123",
},
{
name: "template-with-match-func",
long: `http://host.com/{{if Match "\\d+" .Path}}id/{{.Path}}{{else}}search/{{.Path}}{{end}}`,
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3 changes: 3 additions & 0 deletions tmpl/help.html
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Expand Up @@ -63,7 +63,10 @@ <h2 id="advanced">Advanced destination links</h2>
<ul>
<li><code>PathEscape</code> is the <a href="https://pkg.go.dev/net/url#PathEscape">url.PathEscape</a> function for escaping values inside a URL path.
<li><code>QueryEscape</code> is the <a href="https://pkg.go.dev/net/url#QueryEscape">url.QueryEscape</a> function for escaping values inside a URL query.
<li><code>TrimPrefix</code> is the <a href="https://pkg.go.dev/strings#TrimPrefix">strings.TrimPrefix</a> function for removing a leading prefix.
<li><code>TrimSuffix</code> is the <a href="https://pkg.go.dev/strings#TrimSuffix">strings.TrimSuffix</a> function for removing a trailing suffix.
<li><code>ToLower</code> is the <a href="https://pkg.go.dev/strings#ToLower">strings.ToLower</a> function for mapping all Unicode letters to their lower case.
<li><code>ToUpper</code> is the <a href="https://pkg.go.dev/strings#ToUpper">strings.ToUpper</a> function for mapping all Unicode letters to their upper case.
<li><code>Match</code> is the <a href="https://pkg.go.dev/regexp#MatchString">regexp.MatchString</a> function for matching a regular expression pattern.
</ul>

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