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feat: function argument parsing using named regex (#4700)

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Signed-off-by: Maximilian Kenfenheuer <maximilian.kenfenheuer@ksol.it>
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Maximilian Kenfenheuer 2025-01-27 16:53:05 +01:00 committed by GitHub
parent 0f4f62cf3c
commit 539e94db73
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GPG Key ID: B5690EEEBB952194
1 changed files with 44 additions and 1 deletions
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45
pkg/functions/parse.go
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@ -5,6 +5,7 @@ import (
"errors"
"io"
"regexp"
"slices"
"strings"
"github.com/mudler/LocalAI/pkg/functions/grammars"
@ -71,6 +72,12 @@ type FunctionsConfig struct {
// JSONRegexMatch is a regex to extract the JSON object from the response
JSONRegexMatch []string `yaml:"json_regex_match"`
// ArgumentRegex is a named regex to extract the arguments from the response. Use ArgumentRegexKey and ArgumentRegexValue to set the names of the named regex for key and value of the arguments.
ArgumentRegex []string `yaml:"argument_regex"`
// ArgumentRegex named regex names for key and value extractions. default: key and value
ArgumentRegexKey string `yaml:"argument_regex_key_name"` // default: key
ArgumentRegexValue string `yaml:"argument_regex_value_name"` // default: value
// ReplaceFunctionResults allow to replace strings in the results before parsing them
ReplaceFunctionResults []ReplaceResult `yaml:"replace_function_results"`
@ -310,7 +317,7 @@ func ParseFunctionCall(llmresult string, functionConfig FunctionsConfig) []FuncC
if functionName == "" {
return results
}
results = append(results, FuncCallResults{Name: result[functionNameKey], Arguments: result[functionArgumentsKey]})
results = append(results, FuncCallResults{Name: result[functionNameKey], Arguments: ParseFunctionCallArgs(result[functionArgumentsKey], functionConfig)})
}
}
} else {
@ -322,3 +329,39 @@ func ParseFunctionCall(llmresult string, functionConfig FunctionsConfig) []FuncC
return results
}
func ParseFunctionCallArgs(functionArguments string, functionConfig FunctionsConfig) string {
if len(functionConfig.ArgumentRegex) > 0 {
// We use named regexes here to extract the function argument key value pairs and convert this to valid json.
// TODO: there might be responses where an object as a value is expected/required. This is currently not handled.
args := make(map[string]string)
agrsRegexKeyName := "key"
agrsRegexValueName := "value"
if functionConfig.ArgumentRegexKey != "" {
agrsRegexKeyName = functionConfig.ArgumentRegexKey
}
if functionConfig.ArgumentRegexValue != "" {
agrsRegexValueName = functionConfig.ArgumentRegexValue
}
for _, r := range functionConfig.ArgumentRegex {
var respRegex = regexp.MustCompile(r)
var nameRange []string = respRegex.SubexpNames()
var keyIndex = slices.Index(nameRange, agrsRegexKeyName)
var valueIndex = slices.Index(nameRange, agrsRegexValueName)
matches := respRegex.FindAllStringSubmatch(functionArguments, -1)
for _, match := range matches {
args[match[keyIndex]] = match[valueIndex]
}
}
jsonBytes, _ := json.Marshal(args)
jsonString := string(jsonBytes)
return jsonString
} else {
return functionArguments
}
}