MMM im so full from phrase analysis

analyzer/block.go

@@ -4,7 +4,6 @@ import "git.tebibyte.media/arf/arf/parser"
 
 // Block represents a scoped block of phrases.
 type Block struct {
-	locatable
 	phrases []Phrase
 
 	// TODO: create a scope struct and embed it
@@ -31,7 +30,10 @@ func (analyzer *analysisOperation) analyzeBlock (
 	err error,
 ) {
 	for _, inputPhrase := range inputBlock {
-		
+		var outputPhrase Phrase
+		outputPhrase, err = analyzer.analyzePhrase(inputPhrase)
+		block.phrases = append(block.phrases, outputPhrase)
 	}
+	
 	return
 }

analyzer/phrase.go

@@ -1,9 +1,12 @@
 package analyzer
 
+import "regexp"
 import "git.tebibyte.media/arf/arf/file"
 import "git.tebibyte.media/arf/arf/parser"
 import "git.tebibyte.media/arf/arf/infoerr"
 
+var validNameRegex = regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_]*$")
+
 type Phrase interface {
 	// Provided by phraseBase
 	Location () (location file.Location)
@@ -19,6 +22,17 @@ type ArbitraryPhrase struct {
 	arguments []Argument
 }
 
+func (phrase ArbitraryPhrase) ToString (indent int) (output string) {
+	output += doIndent(indent, "phrase\n")
+	output += doIndent(indent + 1, phrase.command, "\n")
+
+	for _, argument := range phrase.arguments {
+		output += argument.ToString(indent + 1)
+	}
+
+	return
+}
+
 type CastPhrase struct {
 	phraseBase
 	command Argument
@@ -33,5 +47,41 @@ func (analyzer *analysisOperation) analyzePhrase (
 	phrase Phrase,
 	err error,
 ) {
+	base := phraseBase {
+		
+	}
+
+	arguments := []Argument { }
+	for index := 0; index < inputPhrase.Length(); index ++ {
+		inputArgument := inputPhrase.Argument(index)
+		
+		var argument Argument
+		argument, err = analyzer.analyzeArgument(inputArgument)
+		if err != nil { return }
+		arguments = append(arguments, argument)
+	}
+
+	switch inputPhrase.Kind() {
+	case parser.PhraseKindArbitrary:
+		command := inputPhrase.Command().Value().(string)
+		if !validNameRegex.Match([]byte(command)) {
+			err = inputPhrase.NewError (
+				"command cannot contain characters other " +
+				"than a-z, A-Z, 0-9, underscores, or begin " +
+				"with a number",
+				infoerr.ErrorKindError)
+			return
+		}
+
+		outputPhrase := ArbitraryPhrase {
+			phraseBase: base,
+			command:    command,
+			arguments:  arguments,
+		}
+		phrase = outputPhrase
+		
+	default:
+		panic("phrase kind not implemented")
+	}
 	return
 }

parser/accessors.go

@@ -191,6 +191,12 @@ func (section DataSection) External () (external bool) {
 	return
 }
 
+// Command returns the phrase's command.
+func (phrase Phrase) Command () (command Argument) {
+	command = phrase.command
+	return
+}
+
 // Kind returns what kind of phrase it is.
 func (phrase Phrase) Kind () (kind PhraseKind) {
 	kind = phrase.kind

parser/phrase.go

@@ -306,7 +306,7 @@ func (parser *parsingOperation) parsePhraseCommand () (
 
 	// determine semantic role of phrase
 	if command.kind == ArgumentKindString {
-		kind = PhraseKindCallExternal
+		kind = PhraseKindArbitrary
 		
 	} else if command.kind == ArgumentKindIdentifier {
 		identifier := command.value.(Identifier)

parser/tree.go

@@ -231,33 +231,58 @@ type Dereference struct {
 type PhraseKind int
 
 const (
-	PhraseKindCall = iota
-	PhraseKindCallExternal
+	// [name]
+	PhraseKindCall PhraseKind = iota
+	
+	// ["name"]
+	PhraseKindArbitrary
+	
+	// [+] [-]
 	PhraseKindOperator
+	
+	// [= x y]
 	PhraseKindAssign
+	
+	// [loc x]
 	PhraseKindReference
+	
+	// [cast x T]
 	PhraseKindCast
+
+	// [defer]
 	PhraseKindDefer
+	
+	// [if c]
 	PhraseKindIf
+	
+	// [elseif]
 	PhraseKindElseIf
+	
+	// [else]
 	PhraseKindElse
+	
+	// [switch]
 	PhraseKindSwitch
+	
+	// [case]
 	PhraseKindCase
+	
+	// [while c]
 	PhraseKindWhile
+	
+	// [for x y z]
 	PhraseKindFor
 )
 
 // Phrase represents a function call or operator. In ARF they are the same
 // syntactical concept.
 type Phrase struct {
-	location  file.Location
+	locatable
 	returnees []Argument
 	multiValuable
 	
 	kind PhraseKind
 
-	// TODO: do not have this be an argument. make a string version, and
-	// and identifier version.
 	command Argument
 
 	// only applicable for PhraseKindOperator