Template functions: int - casting values to integers (#76)

glaciers-in-archives · Aug 17, 2023 · 5eaa6f5 · 5eaa6f5
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diff --git a/README.md b/README.md
@@ -246,6 +246,14 @@ The `uri` function takes a string and attempts to cast it to a URI, and produces
 {{ uri "https://schema.org/Person" }}
 ```
 
+##### Int
+
+The `int` function takes a value and attempts to cast it to an integer, and produces an error upon failure.
+
+```
+{{ int "123" }}
+```
+
 ##### Add
 
 The `add` function sums integer values and takes at least two arguments.

diff --git a/internal/template/function/utils.go b/internal/template/function/utils.go
@@ -21,6 +21,9 @@ var utilFuncs = map[string]interface{}{
 	"uri": func(value string) (rdf.IRI, error) {
 		return rdf.NewIRI(value)
 	},
+	"int": func(value interface{}) int {
+		return cast.ToInt(value)
+	},
 	"config": func() config.SiteConfig {
 		return config.CurrentSiteConfig
 	},