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Add a few new default functions

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Elara
2024-02-27 21:43:35 -08:00
parent ea7b9f8da9
commit c28df761d1
2 changed files with 12 additions and 0 deletions
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3
README.md
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@@ -170,6 +170,7 @@ Functions used in a template can accept any number of arguments but are limited
Salix includes several useful global functions in all templates: Salix includes several useful global functions in all templates:
- `len(v any) int`: Returns the length of the value passed in. If the length can't be found for the value passed in, it returns an error. - `len(v any) int`: Returns the length of the value passed in. If the length can't be found for the value passed in, it returns an error.
- `json(v any) string`: Returns a JSON string for the value passed in.
- `toUpper(s string) string`: Returns `s`, but with all characters mapped to their uppercase equivalents. - `toUpper(s string) string`: Returns `s`, but with all characters mapped to their uppercase equivalents.
- `toLower(s string) string`: Returns `s`, but with all characters mapped to their lowercase equivalents. - `toLower(s string) string`: Returns `s`, but with all characters mapped to their lowercase equivalents.
- `hasPrefix(s, prefix string) bool`: Returns true if `s` starts with `prefix`. - `hasPrefix(s, prefix string) bool`: Returns true if `s` starts with `prefix`.
@@ -181,6 +182,8 @@ Salix includes several useful global functions in all templates:
- `count(s, substr string) int`: Returns the amount of times that `substr` appears in `s`. - `count(s, substr string) int`: Returns the amount of times that `substr` appears in `s`.
- `split(s, sep string) []string`: Returns a slice containing all substrings separated by `sep`. - `split(s, sep string) []string`: Returns a slice containing all substrings separated by `sep`.
- `join(ss []string, sep string) string`: Returns a string with all substrings in `ss` joined by `sep`. - `join(ss []string, sep string) string`: Returns a string with all substrings in `ss` joined by `sep`.
- `replace(s, old, new string, n int)`: Returns a string with `n` occurrences of `old` in `s` replaced with `new`.
- `replaceAll(s, old, new string)`: Returns a string with all occurrences of `old` in `s` replaced with `new`.
### Adding Custom Functions ### Adding Custom Functions

9
vars.go
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@@ -1,6 +1,7 @@
package salix package salix
import ( import (
"encoding/json"
"fmt" "fmt"
"reflect" "reflect"
"strings" "strings"
@@ -8,6 +9,7 @@ import (
var globalVars = map[string]any{ var globalVars = map[string]any{
"len": tmplLen, "len": tmplLen,
"json": tmplJSON,
"toUpper": strings.ToUpper, "toUpper": strings.ToUpper,
"toLower": strings.ToLower, "toLower": strings.ToLower,
"hasPrefix": strings.HasPrefix, "hasPrefix": strings.HasPrefix,
@@ -19,6 +21,8 @@ var globalVars = map[string]any{
"count": strings.Count, "count": strings.Count,
"split": strings.Split, "split": strings.Split,
"join": strings.Join, "join": strings.Join,
"replace": strings.Replace,
"replaceAll": strings.ReplaceAll,
"sprintf": fmt.Sprintf, "sprintf": fmt.Sprintf,
} }
@@ -31,3 +35,8 @@ func tmplLen(v any) (int, error) {
return 0, fmt.Errorf("cannot get length of %T", v) return 0, fmt.Errorf("cannot get length of %T", v)
} }
} }
func tmplJSON(v any) (string, error) {
data, err := json.Marshal(v)
return string(data), err
}