mirror of
https://github.com/MontFerret/ferret.git
synced 2025-03-19 21:28:32 +02:00
24d8eedd4c
* Added release notes * #509 fixedOCOD typo * Updated values * Updated comments * Changed stdlib docs format * Changed format of array in docs * Use 'any' instead of 'value' in docs * New format for optional params * Updated docs for testing package * Added namespace information
103 lines
2.6 KiB
Go
103 lines
2.6 KiB
Go
package strings
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import (
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"context"
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"strings"
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"github.com/MontFerret/ferret/pkg/runtime/core"
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"github.com/MontFerret/ferret/pkg/runtime/values"
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"github.com/MontFerret/ferret/pkg/runtime/values/types"
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)
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// FIND_FIRST returns the position of the first occurrence of the string search inside the string text. Positions start at 0.
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// @param {String} str - The source string.
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// @param {String} search - The string to seek.
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// @param {Int} [start] - Limit the search to a subset of the text, beginning at start.
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// @param {Int} [end] - Limit the search to a subset of the text, ending at end
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// @return {Int} - The character position of the match. If search is not contained in text, -1 is returned. If search is empty, start is returned.
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func FindFirst(_ context.Context, args ...core.Value) (core.Value, error) {
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err := core.ValidateArgs(args, 2, 4)
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if err != nil {
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return values.NewInt(-1), err
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}
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argsCount := len(args)
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text := args[0].String()
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runes := []rune(text)
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search := args[1].String()
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start := values.NewInt(0)
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end := values.NewInt(len(text))
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if argsCount == 3 {
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arg3 := args[2]
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if arg3.Type() == types.Int {
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start = arg3.(values.Int)
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}
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}
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if argsCount == 4 {
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arg4 := args[3]
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if arg4.Type() == types.Int {
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end = arg4.(values.Int)
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}
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}
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found := strings.Index(string(runes[start:end]), search)
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if found > -1 {
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return values.NewInt(found + int(start)), nil
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}
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return values.NewInt(found), nil
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}
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// FIND_LAST returns the position of the last occurrence of the string search inside the string text. Positions start at 0.
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// @param {String} src - The source string.
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// @param {String} search - The string to seek.
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// @param {Int} [start] - Limit the search to a subset of the text, beginning at start.
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// @param {Int} [end] - Limit the search to a subset of the text, ending at end
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// @return {Int} - The character position of the match. If search is not contained in text, -1 is returned. If search is empty, start is returned.
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func FindLast(_ context.Context, args ...core.Value) (core.Value, error) {
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err := core.ValidateArgs(args, 2, 4)
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if err != nil {
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return values.NewInt(-1), err
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}
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argsCount := len(args)
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text := args[0].String()
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runes := []rune(text)
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search := args[1].String()
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start := values.NewInt(0)
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end := values.NewInt(len(text))
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if argsCount == 3 {
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arg3 := args[2]
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if arg3.Type() == types.Int {
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start = arg3.(values.Int)
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}
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}
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if argsCount == 4 {
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arg4 := args[3]
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if arg4.Type() == types.Int {
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end = arg4.(values.Int)
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}
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}
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found := strings.LastIndex(string(runes[start:end]), search)
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if found > -1 {
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return values.NewInt(found + int(start)), nil
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}
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return values.NewInt(found), nil
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}
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