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@ tool
class_name DialogueManagerParser extends Object
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const DialogueConstants = preload ( " ../constants.gd " )
const DialogueSettings = preload ( " ../settings.gd " )
const ResolvedLineData = preload ( " ./resolved_line_data.gd " )
const ResolvedTagData = preload ( " ./resolved_tag_data.gd " )
const DialogueManagerParseResult = preload ( " ./parse_result.gd " )
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var IMPORT_REGEX : RegEx = RegEx . create_from_string ( " import \" (?<path>[^ \" ]+) \" as (?<prefix>[^ \\ ! \\ @ \\ # \\ $ \\ % \\ ^ \\ & \\ * \\ ( \\ ) \\ - \\ = \\ + \\ { \\ } \\ [ \\ ] \\ ; \\ : \\ \" \\ ' \\ , \\ . \\ < \\ > \\ ? \\ / \\ s]+) " )
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var USING_REGEX : RegEx = RegEx . create_from_string ( " using (?<state>.*) " )
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var VALID_TITLE_REGEX : RegEx = RegEx . create_from_string ( " ^[^ \\ ! \\ @ \\ # \\ $ \\ % \\ ^ \\ & \\ * \\ ( \\ ) \\ - \\ = \\ + \\ { \\ } \\ [ \\ ] \\ ; \\ : \\ \" \\ ' \\ , \\ . \\ < \\ > \\ ? \\ / \\ s]+$ " )
var BEGINS_WITH_NUMBER_REGEX : RegEx = RegEx . create_from_string ( " ^ \\ d " )
var TRANSLATION_REGEX : RegEx = RegEx . create_from_string ( " \\ [ID:(?<tr>.*?) \\ ] " )
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var TAGS_REGEX : RegEx = RegEx . create_from_string ( " \\ [#(?<tags>.*?) \\ ] " )
var MUTATION_REGEX : RegEx = RegEx . create_from_string ( " (?<keyword>do|do!|set) (?<mutation>.*) " )
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var CONDITION_REGEX : RegEx = RegEx . create_from_string ( " (if|elif|while|else if) (?<condition>.*) " )
var WRAPPED_CONDITION_REGEX : RegEx = RegEx . create_from_string ( " \\ [if (?<condition>.*) \\ ] " )
var REPLACEMENTS_REGEX : RegEx = RegEx . create_from_string ( " {{(.*?)}} " )
var GOTO_REGEX : RegEx = RegEx . create_from_string ( " =><? (?<jump_to_title>.*) " )
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var INDENT_REGEX : RegEx = RegEx . create_from_string ( " ^ \\ t+ " )
var INLINE_RANDOM_REGEX : RegEx = RegEx . create_from_string ( " \\ [ \\ [(?<options>.*?) \\ ] \\ ] " )
var INLINE_CONDITIONALS_REGEX : RegEx = RegEx . create_from_string ( " \\ [if (?<condition>.+?) \\ ](?<body>.*?) \\ [ \\ /if \\ ] " )
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var TOKEN_DEFINITIONS : Dictionary = {
DialogueConstants . TOKEN_FUNCTION : RegEx . create_from_string ( " ^[a-zA-Z_][a-zA-Z_0-9]* \\ ( " ) ,
DialogueConstants . TOKEN_DICTIONARY_REFERENCE : RegEx . create_from_string ( " ^[a-zA-Z_][a-zA-Z_0-9]* \\ [ " ) ,
DialogueConstants . TOKEN_PARENS_OPEN : RegEx . create_from_string ( " ^ \\ ( " ) ,
DialogueConstants . TOKEN_PARENS_CLOSE : RegEx . create_from_string ( " ^ \\ ) " ) ,
DialogueConstants . TOKEN_BRACKET_OPEN : RegEx . create_from_string ( " ^ \\ [ " ) ,
DialogueConstants . TOKEN_BRACKET_CLOSE : RegEx . create_from_string ( " ^ \\ ] " ) ,
DialogueConstants . TOKEN_BRACE_OPEN : RegEx . create_from_string ( " ^ \\ { " ) ,
DialogueConstants . TOKEN_BRACE_CLOSE : RegEx . create_from_string ( " ^ \\ } " ) ,
DialogueConstants . TOKEN_COLON : RegEx . create_from_string ( " ^: " ) ,
DialogueConstants . TOKEN_COMPARISON : RegEx . create_from_string ( " ^(==|<=|>=|<|>|!=|in ) " ) ,
DialogueConstants . TOKEN_ASSIGNMENT : RegEx . create_from_string ( " ^( \\ +=| \\ -=| \\ *=|/=|=) " ) ,
DialogueConstants . TOKEN_NUMBER : RegEx . create_from_string ( " ^ \\ -? \\ d+( \\ . \\ d+)? " ) ,
DialogueConstants . TOKEN_OPERATOR : RegEx . create_from_string ( " ^( \\ +| \\ -| \\ *|/| % ) " ) ,
DialogueConstants . TOKEN_COMMA : RegEx . create_from_string ( " ^, " ) ,
DialogueConstants . TOKEN_DOT : RegEx . create_from_string ( " ^ \\ . " ) ,
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DialogueConstants . TOKEN_STRING : RegEx . create_from_string ( " ^( \" .*? \" | \' .*? \' ) " ) ,
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DialogueConstants . TOKEN_NOT : RegEx . create_from_string ( " ^(not( |$)|!) " ) ,
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DialogueConstants . TOKEN_AND_OR : RegEx . create_from_string ( " ^(and|or|&&| \\ | \\ |)( |$) " ) ,
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DialogueConstants . TOKEN_VARIABLE : RegEx . create_from_string ( " ^[a-zA-Z_][a-zA-Z_0-9]* " ) ,
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DialogueConstants . TOKEN_COMMENT : RegEx . create_from_string ( " ^#.* " ) ,
DialogueConstants . TOKEN_CONDITION : RegEx . create_from_string ( " ^(if|elif|else) " ) ,
DialogueConstants . TOKEN_BOOL : RegEx . create_from_string ( " ^(true|false) " )
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}
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var WEIGHTED_RANDOM_SIBLINGS_REGEX : RegEx = RegEx . create_from_string ( " ^ \\ % (?<weight>[ \\ d.]+)? " )
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var raw_lines : PackedStringArray = [ ]
var parent_stack : Array [ String ] = [ ]
var parsed_lines : Dictionary = { }
var imported_paths : PackedStringArray = [ ]
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var using_states : PackedStringArray = [ ]
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var titles : Dictionary = { }
var character_names : PackedStringArray = [ ]
var first_title : String = " "
var errors : Array [ Dictionary ] = [ ]
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var raw_text : String = " "
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var _imported_line_map : Dictionary = { }
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var _imported_line_count : int = 0
var while_loopbacks : Array [ String ] = [ ]
## Parse some raw dialogue text. Returns a dictionary containing parse results
static func parse_string ( string : String , path : String ) - > DialogueManagerParseResult :
var parser : DialogueManagerParser = DialogueManagerParser . new ( )
var error : Error = parser . parse ( string , path )
var data : DialogueManagerParseResult = parser . get_data ( )
parser . free ( )
if error == OK :
return data
else :
return null
## Extract bbcode and other markers from a string
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static func extract_markers_from_string ( string : String ) - > ResolvedLineData :
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var parser : DialogueManagerParser = DialogueManagerParser . new ( )
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var markers : ResolvedLineData = parser . extract_markers ( string )
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parser . free ( )
return markers
## Parse some raw dialogue text. Returns a dictionary containing parse results
func parse ( text : String , path : String ) - > Error :
prepare ( text , path )
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raw_text = text
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# Parse all of the content
var known_translations = { }
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# Get list of known autoloads
var autoload_names : PackedStringArray = get_autoload_names ( )
# Keep track of the last doc comment
var doc_comments : Array [ String ] = [ ]
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# Then parse all lines
for id in range ( 0 , raw_lines . size ( ) ) :
var raw_line : String = raw_lines [ id ]
var line : Dictionary = {
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id = str ( id ) ,
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next_id = DialogueConstants . ID_NULL
}
# Work out if we are inside a conditional or option or if we just
# indented back out of one
var indent_size : int = get_indent ( raw_line )
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if indent_size < parent_stack . size ( ) and not is_line_empty ( raw_line ) :
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for _tab in range ( 0 , parent_stack . size ( ) - indent_size ) :
parent_stack . pop_back ( )
# If we are indented then this line should know about its parent
if parent_stack . size ( ) > 0 :
line [ " parent_id " ] = parent_stack . back ( )
# Trim any indentation (now that we've calculated it) so we can check
# the begining of each line for its type
raw_line = raw_line . strip_edges ( true , false )
# Grab translations
var translation_key : String = extract_translation ( raw_line )
if translation_key != " " :
line [ " translation_key " ] = translation_key
raw_line = raw_line . replace ( " [ID: %s ] " % translation_key , " " )
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# Check for each kind of line
# Start shortcuts
if raw_line . begins_with ( " using " ) :
var using_match : RegExMatch = USING_REGEX . search ( raw_line )
if " state " in using_match . names :
var using_state : String = using_match . strings [ using_match . names . state ] . strip_edges ( )
if not using_state in autoload_names :
add_error ( id , 0 , DialogueConstants . ERR_UNKNOWN_USING )
elif not using_state in using_states :
using_states . append ( using_state )
continue
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# Response
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elif is_response_line ( raw_line ) :
# Add any doc notes
line [ " notes " ] = " \n " . join ( doc_comments )
doc_comments = [ ]
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parent_stack . append ( str ( id ) )
line [ " type " ] = DialogueConstants . TYPE_RESPONSE
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# Extract any #tags
var tag_data : ResolvedTagData = extract_tags ( raw_line )
line [ " tags " ] = tag_data . tags
raw_line = tag_data . line_without_tags
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if " [if " in raw_line :
line [ " condition " ] = extract_condition ( raw_line , true , indent_size )
if " => " in raw_line :
line [ " next_id " ] = extract_goto ( raw_line )
if " =>< " in raw_line :
# Because of when the return point needs to be known at runtime we need to split
# this line into two (otherwise the return point would be dependent on the balloon)
var goto_line : Dictionary = {
type = DialogueConstants . TYPE_GOTO ,
next_id = extract_goto ( raw_line ) ,
next_id_after = find_next_line_after_responses ( id ) ,
is_snippet = true
}
parsed_lines [ str ( id ) + " .1 " ] = goto_line
line [ " next_id " ] = str ( id ) + " .1 "
# Make sure the added goto line can actually go to somewhere
if goto_line . next_id in [ DialogueConstants . ID_ERROR , DialogueConstants . ID_ERROR_INVALID_TITLE , DialogueConstants . ID_ERROR_TITLE_HAS_NO_BODY ] :
line [ " next_id " ] = goto_line . next_id
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line [ " character " ] = " "
line [ " character_replacements " ] = [ ] as Array [ Dictionary ]
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line [ " text " ] = extract_response_prompt ( raw_line )
var previous_response_id = find_previous_response_id ( id )
if parsed_lines . has ( previous_response_id ) :
var previous_response = parsed_lines [ previous_response_id ]
# Add this response to the list on the first response so that it is the
# authority on what is in the list of responses
previous_response [ " responses " ] = previous_response [ " responses " ] + PackedStringArray ( [ str ( id ) ] )
else :
# No previous response so this is the first in the list
line [ " responses " ] = PackedStringArray ( [ str ( id ) ] )
line [ " next_id_after " ] = find_next_line_after_responses ( id )
# If this response has no body then the next id is the next id after
if not line . has ( " next_id " ) or line . next_id == DialogueConstants . ID_NULL :
var next_nonempty_line_id = get_next_nonempty_line_id ( id )
if next_nonempty_line_id != DialogueConstants . ID_NULL :
if get_indent ( raw_lines [ next_nonempty_line_id . to_int ( ) ] ) < = indent_size :
line [ " next_id " ] = line . next_id_after
else :
line [ " next_id " ] = next_nonempty_line_id
line [ " text_replacements " ] = extract_dialogue_replacements ( line . get ( " text " ) , indent_size + 2 )
for replacement in line . text_replacements :
if replacement . has ( " error " ) :
add_error ( id , replacement . index , replacement . error )
# If this response has a character name in it then it will automatically be
# injected as a line of dialogue if the player selects it
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var response_text : String = line . text . replace ( " \\ : " , " !ESCAPED_COLON! " )
if " : " in response_text :
if DialogueSettings . get_setting ( " create_lines_for_responses_with_characters " , true ) :
var first_child : Dictionary = {
type = DialogueConstants . TYPE_DIALOGUE ,
next_id = line . next_id ,
next_id_after = line . next_id_after ,
text_replacements = line . text_replacements ,
tags = line . tags ,
translation_key = line . get ( " translation_key " )
}
parse_response_character_and_text ( id , response_text , first_child , indent_size , parsed_lines )
line [ " character " ] = first_child . character
line [ " character_replacements " ] = first_child . character_replacements
line [ " text " ] = first_child . text
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line [ " text_replacements " ] = extract_dialogue_replacements ( line . text , indent_size + 2 )
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line [ " translation_key " ] = first_child . translation_key
parsed_lines [ str ( id ) + " .2 " ] = first_child
line [ " next_id " ] = str ( id ) + " .2 "
else :
parse_response_character_and_text ( id , response_text , line , indent_size , parsed_lines )
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else :
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line [ " text " ] = response_text . replace ( " !ESCAPED_COLON! " , " : " )
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# Title
elif is_title_line ( raw_line ) :
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line [ " type " ] = DialogueConstants . TYPE_TITLE
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if not raw_lines [ id ] . begins_with ( " ~ " ) :
add_error ( id , indent_size + 2 , DialogueConstants . ERR_NESTED_TITLE )
else :
line [ " text " ] = extract_title ( raw_line )
# Titles can't have numbers as the first letter (unless they are external titles which get replaced with hashes)
if id > = _imported_line_count and BEGINS_WITH_NUMBER_REGEX . search ( line . text ) :
add_error ( id , 2 , DialogueConstants . ERR_TITLE_BEGINS_WITH_NUMBER )
# Only import titles are allowed to have "/" in them
var valid_title = VALID_TITLE_REGEX . search ( raw_line . replace ( " / " , " " ) . substr ( 2 ) . strip_edges ( ) )
if not valid_title :
add_error ( id , 2 , DialogueConstants . ERR_TITLE_INVALID_CHARACTERS )
# Condition
elif is_condition_line ( raw_line , false ) :
parent_stack . append ( str ( id ) )
line [ " type " ] = DialogueConstants . TYPE_CONDITION
line [ " condition " ] = extract_condition ( raw_line , false , indent_size )
line [ " next_id_after " ] = find_next_line_after_conditions ( id )
var next_sibling_id = find_next_condition_sibling ( id )
line [ " next_conditional_id " ] = next_sibling_id if is_valid_id ( next_sibling_id ) else line . next_id_after
elif is_condition_line ( raw_line , true ) :
parent_stack . append ( str ( id ) )
line [ " type " ] = DialogueConstants . TYPE_CONDITION
line [ " next_id_after " ] = find_next_line_after_conditions ( id )
line [ " next_conditional_id " ] = line [ " next_id_after " ]
elif is_while_condition_line ( raw_line ) :
parent_stack . append ( str ( id ) )
line [ " type " ] = DialogueConstants . TYPE_CONDITION
line [ " condition " ] = extract_condition ( raw_line , false , indent_size )
line [ " next_id_after " ] = find_next_line_after_conditions ( id )
while_loopbacks . append ( find_last_line_within_conditions ( id ) )
line [ " next_conditional_id " ] = line [ " next_id_after " ]
# Mutation
elif is_mutation_line ( raw_line ) :
line [ " type " ] = DialogueConstants . TYPE_MUTATION
line [ " mutation " ] = extract_mutation ( raw_line )
# Goto
elif is_goto_line ( raw_line ) :
line [ " type " ] = DialogueConstants . TYPE_GOTO
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if raw_line . begins_with ( " % " ) :
apply_weighted_random ( id , raw_line , indent_size , line )
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line [ " next_id " ] = extract_goto ( raw_line )
if is_goto_snippet_line ( raw_line ) :
line [ " is_snippet " ] = true
line [ " next_id_after " ] = get_line_after_line ( id , indent_size , line )
else :
line [ " is_snippet " ] = false
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# Nested dialogue
elif is_nested_dialogue_line ( raw_line , parsed_lines , raw_lines , indent_size ) :
var parent_line : Dictionary = parsed_lines . values ( ) . back ( )
var parent_indent_size : int = get_indent ( raw_lines [ parent_line . id . to_int ( ) ] )
var should_update_translation_key : bool = parent_line . translation_key == parent_line . text
var suffix : String = raw_line . strip_edges ( true , false )
if suffix == " " :
suffix = " "
parent_line [ " text " ] += " \n " + suffix
parent_line [ " text_replacements " ] = extract_dialogue_replacements ( parent_line . text , parent_line . character . length ( ) + 2 + parent_indent_size )
for replacement in parent_line . text_replacements :
if replacement . has ( " error " ) :
add_error ( id , replacement . index , replacement . error )
if should_update_translation_key :
parent_line [ " translation_key " ] = parent_line . text
parent_line [ " next_id " ] = get_line_after_line ( id , parent_indent_size , parent_line )
# Ignore this line when checking for indent errors
remove_error ( parent_line . id . to_int ( ) , DialogueConstants . ERR_INVALID_INDENTATION )
var next_line = raw_lines [ parent_line . next_id . to_int ( ) ]
if not is_dialogue_line ( next_line ) and get_indent ( next_line ) > = indent_size :
add_error ( parent_line . next_id . to_int ( ) , indent_size , DialogueConstants . ERR_INVALID_INDENTATION )
continue
elif raw_line . strip_edges ( ) . begins_with ( " ## " ) :
doc_comments . append ( raw_line . replace ( " ## " , " " ) . strip_edges ( ) )
continue
elif is_line_empty ( raw_line ) or is_import_line ( raw_line ) :
continue
# Regular dialogue
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else :
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# Remove escape character
if raw_line . begins_with ( " \\ using " ) : raw_line = raw_line . substr ( 1 )
if raw_line . begins_with ( " \\ if " ) : raw_line = raw_line . substr ( 1 )
if raw_line . begins_with ( " \\ elif " ) : raw_line = raw_line . substr ( 1 )
if raw_line . begins_with ( " \\ else " ) : raw_line = raw_line . substr ( 1 )
if raw_line . begins_with ( " \\ while " ) : raw_line = raw_line . substr ( 1 )
if raw_line . begins_with ( " \\ - " ) : raw_line = raw_line . substr ( 1 )
if raw_line . begins_with ( " \\ ~ " ) : raw_line = raw_line . substr ( 1 )
if raw_line . begins_with ( " \\ => " ) : raw_line = raw_line . substr ( 1 )
# Add any doc notes
line [ " notes " ] = " \n " . join ( doc_comments )
doc_comments = [ ]
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# Work out any weighted random siblings
if raw_line . begins_with ( " % " ) :
apply_weighted_random ( id , raw_line , indent_size , line )
raw_line = WEIGHTED_RANDOM_SIBLINGS_REGEX . sub ( raw_line , " " )
line [ " type " ] = DialogueConstants . TYPE_DIALOGUE
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# Extract any tags before we process the line
var tag_data : ResolvedTagData = extract_tags ( raw_line )
line [ " tags " ] = tag_data . tags
raw_line = tag_data . line_without_tags
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var l = raw_line . replace ( " \\ : " , " !ESCAPED_COLON! " )
if " : " in l :
var bits = Array ( l . strip_edges ( ) . split ( " : " ) )
line [ " character " ] = bits . pop_front ( ) . strip_edges ( )
if not line [ " character " ] in character_names :
character_names . append ( line [ " character " ] )
# You can use variables in the character's name
line [ " character_replacements " ] = extract_dialogue_replacements ( line . character , indent_size )
for replacement in line . character_replacements :
if replacement . has ( " error " ) :
add_error ( id , replacement . index , replacement . error )
line [ " text " ] = " : " . join ( bits ) . replace ( " !ESCAPED_COLON! " , " : " )
else :
line [ " character " ] = " "
line [ " character_replacements " ] = [ ] as Array [ Dictionary ]
line [ " text " ] = l . replace ( " !ESCAPED_COLON! " , " : " )
line [ " text_replacements " ] = extract_dialogue_replacements ( line . text , line . character . length ( ) + 2 + indent_size )
for replacement in line . text_replacements :
if replacement . has ( " error " ) :
add_error ( id , replacement . index , replacement . error )
# Unescape any newlines
line [ " text " ] = line . text . replace ( " \\ n " , " \n " ) . strip_edges ( )
# Work out where to go after this line
if line . next_id == DialogueConstants . ID_NULL :
line [ " next_id " ] = get_line_after_line ( id , indent_size , line )
# Check for duplicate translation keys
if line . type in [ DialogueConstants . TYPE_DIALOGUE , DialogueConstants . TYPE_RESPONSE ] :
if line . has ( " translation_key " ) :
if known_translations . has ( line . translation_key ) and known_translations . get ( line . translation_key ) != line . text :
add_error ( id , indent_size , DialogueConstants . ERR_DUPLICATE_ID )
else :
known_translations [ line . translation_key ] = line . text
else :
# Default translations key
if DialogueSettings . get_setting ( " missing_translations_are_errors " , false ) :
add_error ( id , indent_size , DialogueConstants . ERR_MISSING_ID )
else :
line [ " translation_key " ] = line . text
## Error checking
# Can't find goto
var jump_index : int = raw_line . find ( " => " )
match line . next_id :
DialogueConstants . ID_ERROR :
add_error ( id , jump_index , DialogueConstants . ERR_UNKNOWN_TITLE )
DialogueConstants . ID_ERROR_INVALID_TITLE :
add_error ( id , jump_index , DialogueConstants . ERR_INVALID_TITLE_REFERENCE )
DialogueConstants . ID_ERROR_TITLE_HAS_NO_BODY :
add_error ( id , jump_index , DialogueConstants . ERR_TITLE_REFERENCE_HAS_NO_CONTENT )
# Line after condition isn't indented once to the right
if line . type == DialogueConstants . TYPE_CONDITION :
if is_valid_id ( line . next_id ) :
var next_line : String = raw_lines [ line . next_id . to_int ( ) ]
var next_indent : int = get_indent ( next_line )
if next_indent != indent_size + 1 :
add_error ( line . next_id . to_int ( ) , next_indent , DialogueConstants . ERR_INVALID_INDENTATION )
else :
add_error ( id , indent_size , DialogueConstants . ERR_INVALID_CONDITION_INDENTATION )
# Line after normal line is indented to the right
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elif line . type in [
DialogueConstants . TYPE_TITLE ,
DialogueConstants . TYPE_DIALOGUE ,
DialogueConstants . TYPE_MUTATION ,
DialogueConstants . TYPE_GOTO
] and is_valid_id ( line . next_id ) :
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var next_line = raw_lines [ line . next_id . to_int ( ) ]
if next_line != null and get_indent ( next_line ) > indent_size :
add_error ( id , indent_size , DialogueConstants . ERR_INVALID_INDENTATION )
# Parsing condition failed
if line . has ( " condition " ) and line . condition . has ( " error " ) :
add_error ( id , line . condition . index , line . condition . error )
# Parsing mutation failed
elif line . has ( " mutation " ) and line . mutation . has ( " error " ) :
add_error ( id , line . mutation . index , line . mutation . error )
# Line failed to parse at all
if line . get ( " type " ) == DialogueConstants . TYPE_UNKNOWN :
add_error ( id , 0 , DialogueConstants . ERR_UNKNOWN_LINE_SYNTAX )
# If there are no titles then use the first actual line
if first_title == " " and not is_import_line ( raw_line ) :
first_title = str ( id )
# If this line is the last line of a while loop, edit the id of its next line
if str ( id ) in while_loopbacks :
if is_goto_snippet_line ( raw_line ) :
line [ " next_id_after " ] = line [ " parent_id " ]
elif is_condition_line ( raw_line , true ) or is_while_condition_line ( raw_line ) :
line [ " next_conditional_id " ] = line [ " parent_id " ]
line [ " next_id_after " ] = line [ " parent_id " ]
elif is_goto_line ( raw_line ) or is_title_line ( raw_line ) :
pass
else :
line [ " next_id " ] = line [ " parent_id " ]
# Done!
parsed_lines [ str ( id ) ] = line
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# Assume the last line ends the dialogue
var last_line : Dictionary = parsed_lines . values ( ) [ parsed_lines . values ( ) . size ( ) - 1 ]
if last_line . next_id == " " :
last_line . next_id = DialogueConstants . ID_END
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if errors . size ( ) > 0 :
return ERR_PARSE_ERROR
return OK
func get_data ( ) - > DialogueManagerParseResult :
var data : DialogueManagerParseResult = DialogueManagerParseResult . new ( )
data . imported_paths = imported_paths
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data . using_states = using_states
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data . titles = titles
data . character_names = character_names
data . first_title = first_title
data . lines = parsed_lines
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data . errors = errors
data . raw_text = raw_text
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return data
## Get the last parse errors
func get_errors ( ) - > Array [ Dictionary ] :
return errors
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## Prepare the parser by collecting all lines and titles
func prepare ( text : String , path : String , include_imported_titles_hashes : bool = true ) - > void :
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using_states = [ ]
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errors = [ ]
imported_paths = [ ]
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_imported_line_map = { }
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while_loopbacks = [ ]
titles = { }
character_names = [ ]
first_title = " "
raw_lines = text . split ( " \n " )
# Work out imports
var known_imports : Dictionary = { }
# Include the base file path so that we can get around circular dependencies
known_imports [ path . hash ( ) ] = " . "
var imported_titles : Dictionary = { }
for id in range ( 0 , raw_lines . size ( ) ) :
var line = raw_lines [ id ]
if is_import_line ( line ) :
var import_data = extract_import_path_and_name ( line )
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var import_hash : int = import_data . path . hash ( )
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if import_data . size ( ) > 0 :
# Keep track of titles so we can add imported ones later
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if str ( import_hash ) in imported_titles . keys ( ) :
add_error ( id , 0 , DialogueConstants . ERR_FILE_ALREADY_IMPORTED )
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if import_data . prefix in imported_titles . values ( ) :
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add_error ( id , 0 , DialogueConstants . ERR_DUPLICATE_IMPORT_NAME )
imported_titles [ str ( import_hash ) ] = import_data . prefix
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# Import the file content
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if not known_imports . has ( import_hash ) :
var error : Error = import_content ( import_data . path , import_data . prefix , _imported_line_map , known_imports )
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if error != OK :
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add_error ( id , 0 , error )
# Make a map so we can refer compiled lines to where they were imported from
if not _imported_line_map . has ( import_hash ) :
_imported_line_map [ import_hash ] = {
hash = import_hash ,
imported_on_line_number = id ,
from_line = 0 ,
to_line = 0
}
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var imported_content : String = " "
var cummulative_line_number : int = 0
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for item in _imported_line_map . values ( ) :
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item [ " from_line " ] = cummulative_line_number
if known_imports . has ( item . hash ) :
cummulative_line_number += known_imports [ item . hash ] . split ( " \n " ) . size ( )
item [ " to_line " ] = cummulative_line_number
if known_imports . has ( item . hash ) :
imported_content += known_imports [ item . hash ] + " \n "
_imported_line_count = cummulative_line_number + 1
# Join it with the actual content
raw_lines = ( imported_content + " \n " + text ) . split ( " \n " )
# Find all titles first
for id in range ( 0 , raw_lines . size ( ) ) :
if raw_lines [ id ] . begins_with ( " ~ " ) :
var title : String = extract_title ( raw_lines [ id ] )
if title == " " :
add_error ( id , 2 , DialogueConstants . ERR_EMPTY_TITLE )
elif titles . has ( title ) :
add_error ( id , 2 , DialogueConstants . ERR_DUPLICATE_TITLE )
else :
var next_nonempty_line_id : String = get_next_nonempty_line_id ( id )
if next_nonempty_line_id != DialogueConstants . ID_NULL :
titles [ title ] = next_nonempty_line_id
if " / " in title :
if include_imported_titles_hashes == false :
titles . erase ( title )
var bits : PackedStringArray = title . split ( " / " )
if imported_titles . has ( bits [ 0 ] ) :
title = imported_titles [ bits [ 0 ] ] + " / " + bits [ 1 ]
titles [ title ] = next_nonempty_line_id
elif first_title == " " :
first_title = next_nonempty_line_id
else :
titles [ title ] = DialogueConstants . ID_ERROR_TITLE_HAS_NO_BODY
func add_error ( line_number : int , column_number : int , error : int ) - > void :
# See if the error was in an imported file
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for item in _imported_line_map . values ( ) :
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if line_number < item . to_line :
errors . append ( {
line_number = item . imported_on_line_number ,
column_number = 0 ,
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error = DialogueConstants . ERR_ERRORS_IN_IMPORTED_FILE ,
external_error = error ,
external_line_number = line_number
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} )
return
# Otherwise, it's in this file
errors . append ( {
line_number = line_number - _imported_line_count ,
column_number = column_number ,
error = error
} )
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func remove_error ( line_number : int , error : int ) - > void :
for i in range ( errors . size ( ) - 1 , - 1 , - 1 ) :
var err = errors [ i ]
var is_native_error = err . line_number == line_number - _imported_line_count and err . error == error
var is_external_error = err . get ( " external_line_number " ) == line_number and err . get ( " external_error " ) == error
if is_native_error or is_external_error :
errors . remove_at ( i )
return
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func is_import_line ( line : String ) - > bool :
return line . begins_with ( " import " ) and " as " in line
func is_title_line ( line : String ) - > bool :
return line . strip_edges ( true , false ) . begins_with ( " ~ " )
func is_condition_line ( line : String , include_else : bool = true ) - > bool :
line = line . strip_edges ( true , false )
if line . begins_with ( " if " ) or line . begins_with ( " elif " ) or line . begins_with ( " else if " ) : return true
if include_else and line . begins_with ( " else " ) : return true
return false
func is_while_condition_line ( line : String ) - > bool :
line = line . strip_edges ( true , false )
if line . begins_with ( " while " ) : return true
return false
func is_mutation_line ( line : String ) - > bool :
line = line . strip_edges ( true , false )
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return line . begins_with ( " do " ) or line . begins_with ( " do! " ) or line . begins_with ( " set " )
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func is_goto_line ( line : String ) - > bool :
line = line . strip_edges ( true , false )
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line = WEIGHTED_RANDOM_SIBLINGS_REGEX . sub ( line , " " )
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return line . begins_with ( " => " ) or line . begins_with ( " =>< " )
func is_goto_snippet_line ( line : String ) - > bool :
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line = WEIGHTED_RANDOM_SIBLINGS_REGEX . sub ( line . strip_edges ( ) , " " )
return line . begins_with ( " =>< " )
func is_nested_dialogue_line ( raw_line : String , parsed_lines : Dictionary , raw_lines : PackedStringArray , indent_size : int ) - > bool :
if parsed_lines . values ( ) . is_empty ( ) : return false
if raw_line . strip_edges ( ) . begins_with ( " # " ) : return false
var parent_line : Dictionary = parsed_lines . values ( ) . back ( )
if parent_line . type != DialogueConstants . TYPE_DIALOGUE : return false
if get_indent ( raw_lines [ parent_line . id . to_int ( ) ] ) > = indent_size : return false
return true
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func is_dialogue_line ( line : String ) - > bool :
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if line == null : return false
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if is_response_line ( line ) : return false
if is_title_line ( line ) : return false
if is_condition_line ( line , true ) : return false
if is_mutation_line ( line ) : return false
if is_goto_line ( line ) : return false
return true
func is_response_line ( line : String ) - > bool :
return line . strip_edges ( true , false ) . begins_with ( " - " )
func is_valid_id ( id : String ) - > bool :
return false if id in [ DialogueConstants . ID_NULL , DialogueConstants . ID_ERROR , DialogueConstants . ID_END_CONVERSATION ] else true
func is_line_empty ( line : String ) - > bool :
line = line . strip_edges ( )
if line == " " : return true
if line == " endif " : return true
if line . begins_with ( " # " ) : return true
return false
func get_line_after_line ( id : int , indent_size : int , line : Dictionary ) - > String :
# Unless the next line is an outdent we can assume it comes next
var next_nonempty_line_id = get_next_nonempty_line_id ( id )
if next_nonempty_line_id != DialogueConstants . ID_NULL \
and indent_size < = get_indent ( raw_lines [ next_nonempty_line_id . to_int ( ) ] ) :
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return next_nonempty_line_id
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# Otherwise, we grab the ID from the parents next ID after children
elif line . has ( " parent_id " ) and parsed_lines . has ( line . parent_id ) :
return parsed_lines [ line . parent_id ] . next_id_after
else :
return DialogueConstants . ID_NULL
func get_indent ( line : String ) - > int :
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var tabs : RegExMatch = INDENT_REGEX . search ( line )
if tabs :
return tabs . get_string ( ) . length ( )
else :
return 0
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func get_next_nonempty_line_id ( line_number : int ) - > String :
for i in range ( line_number + 1 , raw_lines . size ( ) ) :
if not is_line_empty ( raw_lines [ i ] ) :
return str ( i )
return DialogueConstants . ID_NULL
func find_previous_response_id ( line_number : int ) - > String :
var line = raw_lines [ line_number ]
var indent_size = get_indent ( line )
# Look back up the list to find the previous response
var last_found_response_id : String = str ( line_number )
for i in range ( line_number - 1 , - 1 , - 1 ) :
line = raw_lines [ i ]
if is_line_empty ( line ) : continue
# If its a response at the same indent level then its a match
elif get_indent ( line ) == indent_size :
if line . strip_edges ( ) . begins_with ( " - " ) :
last_found_response_id = str ( i )
else :
return last_found_response_id
# Return itself if nothing was found
return last_found_response_id
func apply_weighted_random ( id : int , raw_line : String , indent_size : int , line : Dictionary ) - > void :
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var weight : float = 1
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var found = WEIGHTED_RANDOM_SIBLINGS_REGEX . search ( raw_line )
if found and found . names . has ( " weight " ) :
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weight = found . strings [ found . names . weight ] . to_float ( )
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# Look back up the list to find the first weighted random line in this group
var original_random_line : Dictionary = { }
for i in range ( id , 0 , - 1 ) :
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# Ignore doc comment lines
if raw_lines [ i ] . strip_edges ( ) . begins_with ( " ## " ) :
continue
# Lines that aren't prefixed with the random token are a dead end
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if not raw_lines [ i ] . strip_edges ( ) . begins_with ( " % " ) or get_indent ( raw_lines [ i ] ) != indent_size :
break
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# Make sure we group random dialogue and random lines separately
elif WEIGHTED_RANDOM_SIBLINGS_REGEX . sub ( raw_line . strip_edges ( ) , " " ) . begins_with ( " = " ) != WEIGHTED_RANDOM_SIBLINGS_REGEX . sub ( raw_lines [ i ] . strip_edges ( ) , " " ) . begins_with ( " = " ) :
break
# Otherwise we've found the origin
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elif parsed_lines . has ( str ( i ) ) and parsed_lines [ str ( i ) ] . has ( " siblings " ) :
original_random_line = parsed_lines [ str ( i ) ]
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break
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# Attach it to the original random line and work out where to go after the line
if original_random_line . size ( ) > 0 :
original_random_line [ " siblings " ] += [ { weight = weight , id = str ( id ) } ]
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if original_random_line . type != DialogueConstants . TYPE_GOTO :
# Update the next line for all siblings (not goto lines, though, they manager their
# own next ID)
original_random_line [ " next_id " ] = get_line_after_line ( id , indent_size , line )
for sibling in original_random_line [ " siblings " ] :
if sibling . id in parsed_lines :
parsed_lines [ sibling . id ] [ " next_id " ] = original_random_line [ " next_id " ]
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line [ " next_id " ] = original_random_line . next_id
# Or set up this line as the original
else :
line [ " siblings " ] = [ { weight = weight , id = str ( id ) } ]
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line [ " next_id " ] = get_line_after_line ( id , indent_size , line )
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if line . next_id == DialogueConstants . ID_NULL :
line [ " next_id " ] = DialogueConstants . ID_END
func find_next_condition_sibling ( line_number : int ) - > String :
var line = raw_lines [ line_number ]
var expected_indent = get_indent ( line )
# Look down the list and find an elif or else at the same indent level
for i in range ( line_number + 1 , raw_lines . size ( ) ) :
line = raw_lines [ i ]
if is_line_empty ( line ) : continue
var l = line . strip_edges ( )
if l . begins_with ( " ~ " ) :
return DialogueConstants . ID_END_CONVERSATION
elif get_indent ( line ) < expected_indent :
return DialogueConstants . ID_NULL
elif get_indent ( line ) == expected_indent :
# Found an if, which begins a different block
if l . begins_with ( " if " ) :
return DialogueConstants . ID_NULL
# Found what we're looking for
elif ( l . begins_with ( " elif " ) or l . begins_with ( " else " ) ) :
return str ( i )
return DialogueConstants . ID_NULL
func find_next_line_after_conditions ( line_number : int ) - > String :
var line = raw_lines [ line_number ]
var expected_indent = get_indent ( line )
# Look down the list for the first non condition line at the same or less indent level
for i in range ( line_number + 1 , raw_lines . size ( ) ) :
line = raw_lines [ i ]
if is_line_empty ( line ) : continue
var line_indent = get_indent ( line )
line = line . strip_edges ( )
if is_title_line ( line ) :
return get_next_nonempty_line_id ( i )
elif line_indent > expected_indent :
continue
elif line_indent == expected_indent :
if line . begins_with ( " elif " ) or line . begins_with ( " else " ) :
continue
else :
return str ( i )
elif line_indent < expected_indent :
# We have to check the parent of this block
for p in range ( line_number - 1 , - 1 , - 1 ) :
line = raw_lines [ p ]
if is_line_empty ( line ) : continue
line_indent = get_indent ( line )
if line_indent < expected_indent :
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return parsed_lines [ str ( p ) ] . get ( " next_id_after " , DialogueConstants . ID_NULL )
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return DialogueConstants . ID_END_CONVERSATION
func find_last_line_within_conditions ( line_number : int ) - > String :
var line = raw_lines [ line_number ]
var expected_indent = get_indent ( line )
var candidate = DialogueConstants . ID_NULL
# Look down the list for the last line that has an indent level 1 more than this line
# Ending the search when you find a line the same or less indent level
for i in range ( line_number + 1 , raw_lines . size ( ) ) :
line = raw_lines [ i ]
if is_line_empty ( line ) : continue
var line_indent = get_indent ( line )
line = line . strip_edges ( )
if line_indent > expected_indent + 1 :
continue
elif line_indent == ( expected_indent + 1 ) :
candidate = i
else :
break
return str ( candidate )
func find_next_line_after_responses ( line_number : int ) - > String :
var line = raw_lines [ line_number ]
var expected_indent = get_indent ( line )
# Find the first line after this one that has a smaller indent that isn't another option
# If we hit the eof then we give up
for i in range ( line_number + 1 , raw_lines . size ( ) ) :
line = raw_lines [ i ]
if is_line_empty ( line ) : continue
var indent = get_indent ( line )
line = line . strip_edges ( )
# We hit a title so the next line is a new start
if is_title_line ( line ) :
return get_next_nonempty_line_id ( i )
# Another option
elif line . begins_with ( " - " ) :
if indent == expected_indent :
# ...at the same level so we continue
continue
elif indent < expected_indent :
# ...outdented so check the previous parent
var previous_parent = parent_stack [ parent_stack . size ( ) - 2 ]
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if parsed_lines . has ( str ( previous_parent ) ) :
return parsed_lines [ str ( previous_parent ) ] . next_id_after
else :
return DialogueConstants . ID_NULL
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# We're at the end of a conditional so jump back up to see what's after it
elif line . begins_with ( " elif " ) or line . begins_with ( " else " ) :
for p in range ( line_number - 1 , - 1 , - 1 ) :
line = raw_lines [ p ]
if is_line_empty ( line ) : continue
var line_indent = get_indent ( line )
if line_indent < expected_indent :
return parsed_lines [ str ( p ) ] . next_id_after
# Otherwise check the indent for an outdent
else :
line_number = i
line = raw_lines [ line_number ]
if get_indent ( line ) < = expected_indent :
return str ( line_number )
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# EOF so it's also the end of a block
return DialogueConstants . ID_END
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## Get the names of any autoloads in the project
func get_autoload_names ( ) - > PackedStringArray :
var autoloads : PackedStringArray = [ ]
var project = ConfigFile . new ( )
project . load ( " res://project.godot " )
if project . has_section ( " autoload " ) :
return Array ( project . get_section_keys ( " autoload " ) ) . filter ( func ( key ) : return key != " DialogueManager " )
return autoloads
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## Import content from another dialogue file or return an ERR
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func import_content ( path : String , prefix : String , imported_line_map : Dictionary , known_imports : Dictionary ) - > Error :
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if FileAccess . file_exists ( path ) :
var file = FileAccess . open ( path , FileAccess . READ )
var content : PackedStringArray = file . get_as_text ( ) . split ( " \n " )
var imported_titles : Dictionary = { }
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for index in range ( 0 , content . size ( ) ) :
var line = content [ index ]
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if is_import_line ( line ) :
var import = extract_import_path_and_name ( line )
if import . size ( ) > 0 :
if not known_imports . has ( import . path . hash ( ) ) :
# Add an empty record into the keys just so we don't end up with cyclic dependencies
known_imports [ import . path . hash ( ) ] = " "
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if import_content ( import . path , import . prefix , imported_line_map , known_imports ) != OK :
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return ERR_LINK_FAILED
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if not imported_line_map . has ( import . path . hash ( ) ) :
# Make a map so we can refer compiled lines to where they were imported from
imported_line_map [ import . path . hash ( ) ] = {
hash = import . path . hash ( ) ,
imported_on_line_number = index ,
from_line = 0 ,
to_line = 0
}
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imported_titles [ import . prefix ] = import . path . hash ( )
var origin_hash : int = - 1
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for hash_value in known_imports . keys ( ) :
if known_imports [ hash_value ] == " . " :
origin_hash = hash_value
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# Replace any titles or jump points with references to the files they point to (event if they point to their own file)
for i in range ( 0 , content . size ( ) ) :
var line = content [ i ]
if is_title_line ( line ) :
var title = extract_title ( line )
if " / " in line :
var bits = title . split ( " / " )
content [ i ] = " ~ %s / %s " % [ imported_titles [ bits [ 0 ] ] , bits [ 1 ] ]
else :
content [ i ] = " ~ %s / %s " % [ str ( path . hash ( ) ) , title ]
elif " =>< " in line :
var jump : String = line . substr ( line . find ( " =>< " ) + " =>< " . length ( ) ) . strip_edges ( )
if " / " in jump :
var bits : PackedStringArray = jump . split ( " / " )
var title_hash : int = imported_titles [ bits [ 0 ] ]
if title_hash == origin_hash :
content [ i ] = " %s =>< %s " % [ line . split ( " =>< " ) [ 0 ] , bits [ 1 ] ]
else :
content [ i ] = " %s =>< %s / %s " % [ line . split ( " =>< " ) [ 0 ] , title_hash , bits [ 1 ] ]
elif not jump in [ " END " , " END! " ] :
content [ i ] = " %s =>< %s / %s " % [ line . split ( " =>< " ) [ 0 ] , str ( path . hash ( ) ) , jump ]
elif " => " in line :
var jump : String = line . substr ( line . find ( " => " ) + " => " . length ( ) ) . strip_edges ( )
if " / " in jump :
var bits : PackedStringArray = jump . split ( " / " )
var title_hash : int = imported_titles [ bits [ 0 ] ]
if title_hash == origin_hash :
content [ i ] = " %s => %s " % [ line . split ( " => " ) [ 0 ] , bits [ 1 ] ]
else :
content [ i ] = " %s => %s / %s " % [ line . split ( " => " ) [ 0 ] , title_hash , bits [ 1 ] ]
elif not jump in [ " END " , " END! " ] :
content [ i ] = " %s => %s / %s " % [ line . split ( " => " ) [ 0 ] , str ( path . hash ( ) ) , jump ]
imported_paths . append ( path )
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known_imports [ path . hash ( ) ] = " \n " . join ( content ) + " \n => END \n "
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return OK
else :
return ERR_FILE_NOT_FOUND
func extract_import_path_and_name ( line : String ) - > Dictionary :
var found : RegExMatch = IMPORT_REGEX . search ( line )
if found :
return {
path = found . strings [ found . names . path ] ,
prefix = found . strings [ found . names . prefix ]
}
else :
return { }
func extract_title ( line : String ) - > String :
return line . substr ( 2 ) . strip_edges ( )
func extract_translation ( line : String ) - > String :
# Find a static translation key, eg. [ID:something]
var found : RegExMatch = TRANSLATION_REGEX . search ( line )
if found :
return found . strings [ found . names . tr ]
else :
return " "
func extract_response_prompt ( line : String ) - > String :
# Find just the text prompt from a response, ignoring any conditions or gotos
line = line . substr ( 2 )
if " [if " in line :
line = line . substr ( 0 , line . find ( " [if " ) )
if " => " in line :
line = line . substr ( 0 , line . find ( " => " ) )
# Without the translation key if there is one
var translation_key : String = extract_translation ( line )
if translation_key :
line = line . replace ( " [ID: %s ] " % translation_key , " " )
return line . replace ( " \\ n " , " \n " ) . strip_edges ( )
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func parse_response_character_and_text ( id : int , text : String , line : Dictionary , indent_size : int , parsed_lines : Dictionary ) - > void :
var bits = Array ( text . strip_edges ( ) . split ( " : " ) )
line [ " character " ] = bits . pop_front ( ) . strip_edges ( )
line [ " character_replacements " ] = extract_dialogue_replacements ( line . character , line . character . length ( ) + 2 + indent_size )
for replacement in line . character_replacements :
if replacement . has ( " error " ) :
add_error ( id , replacement . index , replacement . error )
if not line [ " character " ] in character_names :
character_names . append ( line [ " character " ] )
line [ " text " ] = " : " . join ( bits ) . replace ( " !ESCAPED_COLON! " , " : " ) . strip_edges ( )
if line . get ( " translation_key " , null ) == null :
line [ " translation_key " ] = line . text
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func extract_mutation ( line : String ) - > Dictionary :
var found : RegExMatch = MUTATION_REGEX . search ( line )
if not found :
return {
index = 0 ,
error = DialogueConstants . ERR_INCOMPLETE_EXPRESSION
}
if found . names . has ( " mutation " ) :
var expression : Array = tokenise ( found . strings [ found . names . mutation ] , DialogueConstants . TYPE_MUTATION , found . get_start ( " mutation " ) )
if expression . size ( ) == 0 :
return {
index = found . get_start ( " mutation " ) ,
error = DialogueConstants . ERR_INCOMPLETE_EXPRESSION
}
elif expression [ 0 ] . type == DialogueConstants . TYPE_ERROR :
return {
index = expression [ 0 ] . index ,
error = expression [ 0 ] . value
}
else :
return {
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expression = expression ,
is_blocking = not " ! " in found . strings [ found . names . keyword ]
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}
else :
return {
index = found . get_start ( ) ,
error = DialogueConstants . ERR_INCOMPLETE_EXPRESSION
}
func extract_condition ( raw_line : String , is_wrapped : bool , index : int ) - > Dictionary :
var condition : Dictionary = { }
var regex : RegEx = WRAPPED_CONDITION_REGEX if is_wrapped else CONDITION_REGEX
var found : RegExMatch = regex . search ( raw_line )
if found == null :
return {
index = 0 ,
error = DialogueConstants . ERR_INCOMPLETE_EXPRESSION
}
var raw_condition : String = found . strings [ found . names . condition ]
var expression : Array = tokenise ( raw_condition , DialogueConstants . TYPE_CONDITION , index + found . get_start ( " condition " ) )
if expression . size ( ) == 0 :
return {
index = index + found . get_start ( " condition " ) ,
error = DialogueConstants . ERR_INCOMPLETE_EXPRESSION
}
elif expression [ 0 ] . type == DialogueConstants . TYPE_ERROR :
return {
index = expression [ 0 ] . index ,
error = expression [ 0 ] . value
}
else :
return {
expression = expression
}
func extract_dialogue_replacements ( text : String , index : int ) - > Array [ Dictionary ] :
var founds : Array [ RegExMatch ] = REPLACEMENTS_REGEX . search_all ( text )
if founds == null or founds . size ( ) == 0 :
return [ ]
var replacements : Array [ Dictionary ] = [ ]
for found in founds :
var replacement : Dictionary = { }
var value_in_text : String = found . strings [ 1 ]
var expression : Array = tokenise ( value_in_text , DialogueConstants . TYPE_DIALOGUE , index + found . get_start ( 1 ) )
if expression . size ( ) == 0 :
replacement = {
index = index + found . get_start ( 1 ) ,
error = DialogueConstants . ERR_INCOMPLETE_EXPRESSION
}
elif expression [ 0 ] . type == DialogueConstants . TYPE_ERROR :
replacement = {
index = expression [ 0 ] . index ,
error = expression [ 0 ] . value
}
else :
replacement = {
value_in_text = " {{ %s }} " % value_in_text ,
expression = expression
}
replacements . append ( replacement )
return replacements
func extract_goto ( line : String ) - > String :
var found : RegExMatch = GOTO_REGEX . search ( line )
if found == null : return DialogueConstants . ID_ERROR
var title : String = found . strings [ found . names . jump_to_title ] . strip_edges ( )
if " " in title or title == " " :
return DialogueConstants . ID_ERROR_INVALID_TITLE
# "=> END!" means end the conversation
if title == " END! " :
return DialogueConstants . ID_END_CONVERSATION
# "=> END" means end the current title (and go back to the previous one if there is one
# in the stack)
elif title == " END " :
return DialogueConstants . ID_END
elif titles . has ( title ) :
return titles . get ( title )
else :
return DialogueConstants . ID_ERROR
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func extract_tags ( line : String ) - > ResolvedTagData :
var resolved_tags : PackedStringArray = [ ]
var tag_matches : Array [ RegExMatch ] = TAGS_REGEX . search_all ( line )
for tag_match in tag_matches :
line = line . replace ( tag_match . get_string ( ) , " " )
var tags = tag_match . get_string ( ) . replace ( " [# " , " " ) . replace ( " ] " , " " ) . replace ( " , " , " , " ) . split ( " , " )
for tag in tags :
tag = tag . replace ( " # " , " " )
if not tag in resolved_tags :
resolved_tags . append ( tag )
return ResolvedTagData . new ( {
tags = resolved_tags ,
line_without_tags = line
} )
func extract_markers ( line : String ) - > ResolvedLineData :
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var text : String = line
var pauses : Dictionary = { }
var speeds : Dictionary = { }
var mutations : Array [ Array ] = [ ]
var bbcodes : Array = [ ]
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var time : String = " "
# Remove any escaped brackets (ie. "\[")
var escaped_open_brackets : PackedInt32Array = [ ]
var escaped_close_brackets : PackedInt32Array = [ ]
for i in range ( 0 , text . length ( ) - 1 ) :
if text . substr ( i , 2 ) == " \\ [ " :
text = text . substr ( 0 , i ) + " ! " + text . substr ( i + 2 )
escaped_open_brackets . append ( i )
elif text . substr ( i , 2 ) == " \\ ] " :
text = text . substr ( 0 , i ) + " ! " + text . substr ( i + 2 )
escaped_close_brackets . append ( i )
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# Extract all of the BB codes so that we know the actual text (we could do this easier with
# a RichTextLabel but then we'd need to await idle_frame which is annoying)
var bbcode_positions = find_bbcode_positions_in_string ( text )
var accumulaive_length_offset = 0
for position in bbcode_positions :
# Ignore our own markers
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if position . code in [ " wait " , " speed " , " /speed " , " do " , " do! " , " set " , " next " , " if " , " else " , " /if " ] :
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continue
bbcodes . append ( {
bbcode = position . bbcode ,
start = position . start ,
offset_start = position . start - accumulaive_length_offset
} )
accumulaive_length_offset += position . bbcode . length ( )
for bb in bbcodes :
text = text . substr ( 0 , bb . offset_start ) + text . substr ( bb . offset_start + bb . bbcode . length ( ) )
# Now find any dialogue markers
var next_bbcode_position = find_bbcode_positions_in_string ( text , false )
var limit = 0
while next_bbcode_position . size ( ) > 0 and limit < 1000 :
limit += 1
var bbcode = next_bbcode_position [ 0 ]
var index = bbcode . start
var code = bbcode . code
var raw_args = bbcode . raw_args
var args = { }
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if code in [ " do " , " do! " , " set " ] :
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args [ " value " ] = extract_mutation ( " %s %s " % [ code , raw_args ] )
else :
# Could be something like:
# "=1.0"
# " rate=20 level=10"
if raw_args and raw_args [ 0 ] == " = " :
raw_args = " value " + raw_args
for pair in raw_args . strip_edges ( ) . split ( " " ) :
if " = " in pair :
var bits = pair . split ( " = " )
args [ bits [ 0 ] ] = bits [ 1 ]
match code :
" wait " :
if pauses . has ( index ) :
pauses [ index ] += args . get ( " value " ) . to_float ( )
else :
pauses [ index ] = args . get ( " value " ) . to_float ( )
" speed " :
speeds [ index ] = args . get ( " value " ) . to_float ( )
" /speed " :
speeds [ index ] = 1.0
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" do " , " do! " , " set " :
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mutations . append ( [ index , args . get ( " value " ) ] )
" next " :
time = args . get ( " value " ) if args . has ( " value " ) else " 0 "
# Find any BB codes that are after this index and remove the length from their start
var length = bbcode . bbcode . length ( )
for bb in bbcodes :
if bb . offset_start > bbcode . start :
bb . offset_start -= length
bb . start -= length
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# Find any escaped brackets after this that need moving
for i in range ( 0 , escaped_open_brackets . size ( ) ) :
if escaped_open_brackets [ i ] > bbcode . start :
escaped_open_brackets [ i ] -= length
for i in range ( 0 , escaped_close_brackets . size ( ) ) :
if escaped_close_brackets [ i ] > bbcode . start :
escaped_close_brackets [ i ] -= length
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text = text . substr ( 0 , index ) + text . substr ( index + length )
next_bbcode_position = find_bbcode_positions_in_string ( text , false )
# Put the BB Codes back in
for bb in bbcodes :
text = text . insert ( bb . start , bb . bbcode )
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# Put the escaped brackets back in
for index in escaped_open_brackets :
text = text . left ( index ) + " [ " + text . right ( text . length ( ) - index - 1 )
for index in escaped_close_brackets :
text = text . left ( index ) + " ] " + text . right ( text . length ( ) - index - 1 )
return ResolvedLineData . new ( {
text = text ,
pauses = pauses ,
speeds = speeds ,
mutations = mutations ,
time = time
} )
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func find_bbcode_positions_in_string ( string : String , find_all : bool = true ) - > Array [ Dictionary ] :
if not " [ " in string : return [ ]
var positions : Array [ Dictionary ] = [ ]
var open_brace_count : int = 0
var start : int = 0
var bbcode : String = " "
var code : String = " "
var is_finished_code : bool = false
for i in range ( 0 , string . length ( ) ) :
if string [ i ] == " [ " :
if open_brace_count == 0 :
start = i
bbcode = " "
code = " "
is_finished_code = false
open_brace_count += 1
else :
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if not is_finished_code and ( string [ i ] . to_upper ( ) != string [ i ] or string [ i ] == " / " or string [ i ] == " ! " ) :
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code += string [ i ]
else :
is_finished_code = true
if open_brace_count > 0 :
bbcode += string [ i ]
if string [ i ] == " ] " :
open_brace_count -= 1
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if open_brace_count == 0 and not code in [ " if " , " else " , " /if " ] :
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positions . append ( {
bbcode = bbcode ,
code = code ,
start = start ,
raw_args = bbcode . substr ( code . length ( ) + 1 , bbcode . length ( ) - code . length ( ) - 2 ) . strip_edges ( )
} )
if not find_all :
return positions
return positions
func tokenise ( text : String , line_type : String , index : int ) - > Array :
var tokens : Array [ Dictionary ] = [ ]
var limit : int = 0
while text . strip_edges ( ) != " " and limit < 1000 :
limit += 1
var found = find_match ( text )
if found . size ( ) > 0 :
tokens . append ( {
index = index ,
type = found . type ,
value = found . value
} )
index += found . value . length ( )
text = found . remaining_text
elif text . begins_with ( " " ) :
index += 1
text = text . substr ( 1 )
else :
return build_token_tree_error ( DialogueConstants . ERR_INVALID_EXPRESSION , index )
return build_token_tree ( tokens , line_type , " " ) [ 0 ]
func build_token_tree_error ( error : int , index : int ) - > Array :
return [ { type = DialogueConstants . TOKEN_ERROR , value = error , index = index } ]
func build_token_tree ( tokens : Array [ Dictionary ] , line_type : String , expected_close_token : String ) - > Array :
var tree : Array [ Dictionary ] = [ ]
var limit = 0
while tokens . size ( ) > 0 and limit < 1000 :
limit += 1
var token = tokens . pop_front ( )
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var error = check_next_token ( token , tokens , line_type , expected_close_token )
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if error != OK :
return [ build_token_tree_error ( error , token . index ) , tokens ]
match token . type :
DialogueConstants . TOKEN_FUNCTION :
var sub_tree = build_token_tree ( tokens , line_type , DialogueConstants . TOKEN_PARENS_CLOSE )
if sub_tree [ 0 ] . size ( ) > 0 and sub_tree [ 0 ] [ 0 ] . type == DialogueConstants . TOKEN_ERROR :
return [ build_token_tree_error ( sub_tree [ 0 ] [ 0 ] . value , token . index ) , tokens ]
tree . append ( {
type = DialogueConstants . TOKEN_FUNCTION ,
# Consume the trailing "("
function = token . value . substr ( 0 , token . value . length ( ) - 1 ) ,
value = tokens_to_list ( sub_tree [ 0 ] )
} )
tokens = sub_tree [ 1 ]
DialogueConstants . TOKEN_DICTIONARY_REFERENCE :
var sub_tree = build_token_tree ( tokens , line_type , DialogueConstants . TOKEN_BRACKET_CLOSE )
if sub_tree [ 0 ] . size ( ) > 0 and sub_tree [ 0 ] [ 0 ] . type == DialogueConstants . TOKEN_ERROR :
return [ build_token_tree_error ( sub_tree [ 0 ] [ 0 ] . value , token . index ) , tokens ]
var args = tokens_to_list ( sub_tree [ 0 ] )
if args . size ( ) != 1 :
return [ build_token_tree_error ( DialogueConstants . ERR_INVALID_INDEX , token . index ) , tokens ]
tree . append ( {
type = DialogueConstants . TOKEN_DICTIONARY_REFERENCE ,
# Consume the trailing "["
variable = token . value . substr ( 0 , token . value . length ( ) - 1 ) ,
value = args [ 0 ]
} )
tokens = sub_tree [ 1 ]
DialogueConstants . TOKEN_BRACE_OPEN :
var sub_tree = build_token_tree ( tokens , line_type , DialogueConstants . TOKEN_BRACE_CLOSE )
if sub_tree [ 0 ] . size ( ) > 0 and sub_tree [ 0 ] [ 0 ] . type == DialogueConstants . TOKEN_ERROR :
return [ build_token_tree_error ( sub_tree [ 0 ] [ 0 ] . value , token . index ) , tokens ]
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var t = sub_tree [ 0 ]
for i in range ( 0 , t . size ( ) - 2 ) :
# Convert Lua style dictionaries to string keys
if t [ i ] . type == DialogueConstants . TOKEN_VARIABLE and t [ i + 1 ] . type == DialogueConstants . TOKEN_ASSIGNMENT :
t [ i ] . type = DialogueConstants . TOKEN_STRING
t [ i + 1 ] . type = DialogueConstants . TOKEN_COLON
t [ i + 1 ] . erase ( " value " )
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tree . append ( {
type = DialogueConstants . TOKEN_DICTIONARY ,
value = tokens_to_dictionary ( sub_tree [ 0 ] )
} )
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tokens = sub_tree [ 1 ]
DialogueConstants . TOKEN_BRACKET_OPEN :
var sub_tree = build_token_tree ( tokens , line_type , DialogueConstants . TOKEN_BRACKET_CLOSE )
if sub_tree [ 0 ] . size ( ) > 0 and sub_tree [ 0 ] [ 0 ] . type == DialogueConstants . TOKEN_ERROR :
return [ build_token_tree_error ( sub_tree [ 0 ] [ 0 ] . value , token . index ) , tokens ]
var type = DialogueConstants . TOKEN_ARRAY
var value = tokens_to_list ( sub_tree [ 0 ] )
# See if this is referencing a nested dictionary value
if tree . size ( ) > 0 :
var previous_token = tree [ tree . size ( ) - 1 ]
if previous_token . type in [ DialogueConstants . TOKEN_DICTIONARY_REFERENCE , DialogueConstants . TOKEN_DICTIONARY_NESTED_REFERENCE ] :
type = DialogueConstants . TOKEN_DICTIONARY_NESTED_REFERENCE
value = value [ 0 ]
tree . append ( {
type = type ,
value = value
} )
tokens = sub_tree [ 1 ]
DialogueConstants . TOKEN_PARENS_OPEN :
var sub_tree = build_token_tree ( tokens , line_type , DialogueConstants . TOKEN_PARENS_CLOSE )
if sub_tree [ 0 ] [ 0 ] . type == DialogueConstants . TOKEN_ERROR :
return [ build_token_tree_error ( sub_tree [ 0 ] [ 0 ] . value , token . index ) , tokens ]
tree . append ( {
type = DialogueConstants . TOKEN_GROUP ,
value = sub_tree [ 0 ]
} )
tokens = sub_tree [ 1 ]
DialogueConstants . TOKEN_PARENS_CLOSE , \
DialogueConstants . TOKEN_BRACE_CLOSE , \
DialogueConstants . TOKEN_BRACKET_CLOSE :
if token . type != expected_close_token :
return [ build_token_tree_error ( DialogueConstants . ERR_UNEXPECTED_CLOSING_BRACKET , token . index ) , tokens ]
return [ tree , tokens ]
DialogueConstants . TOKEN_NOT :
# Double nots negate each other
if tokens . size ( ) > 0 and tokens . front ( ) . type == DialogueConstants . TOKEN_NOT :
tokens . pop_front ( )
else :
tree . append ( {
type = token . type
} )
DialogueConstants . TOKEN_COMMA , \
DialogueConstants . TOKEN_COLON , \
DialogueConstants . TOKEN_DOT :
tree . append ( {
type = token . type
} )
DialogueConstants . TOKEN_COMPARISON , \
DialogueConstants . TOKEN_ASSIGNMENT , \
DialogueConstants . TOKEN_OPERATOR , \
DialogueConstants . TOKEN_AND_OR , \
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DialogueConstants . TOKEN_VARIABLE :
var value = token . value . strip_edges ( )
if value == " && " :
value = " and "
elif value == " || " :
value = " or "
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tree . append ( {
type = token . type ,
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value = value
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} )
DialogueConstants . TOKEN_STRING :
tree . append ( {
type = token . type ,
value = token . value . substr ( 1 , token . value . length ( ) - 2 )
} )
DialogueConstants . TOKEN_CONDITION :
return [ build_token_tree_error ( DialogueConstants . ERR_UNEXPECTED_CONDITION , token . index ) , token ]
DialogueConstants . TOKEN_BOOL :
tree . append ( {
type = token . type ,
value = token . value . to_lower ( ) == " true "
} )
DialogueConstants . TOKEN_NUMBER :
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var value = token . value . to_float ( ) if " . " in token . value else token . value . to_int ( )
# If previous token is a number and this one is a negative number then
# inject a minus operator token in between them.
if tree . size ( ) > 0 and token . value . begins_with ( " - " ) and tree [ tree . size ( ) - 1 ] . type == DialogueConstants . TOKEN_NUMBER :
tree . append ( ( {
type = DialogueConstants . TOKEN_OPERATOR ,
value = " - "
} ) )
tree . append ( {
type = token . type ,
value = - 1 * value
} )
else :
tree . append ( {
type = token . type ,
value = value
} )
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if expected_close_token != " " :
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var index : int = tokens [ 0 ] . index if tokens . size ( ) > 0 else 0
return [ build_token_tree_error ( DialogueConstants . ERR_MISSING_CLOSING_BRACKET , index ) , tokens ]
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return [ tree , tokens ]
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func check_next_token ( token : Dictionary , next_tokens : Array [ Dictionary ] , line_type : String , expected_close_token : String ) - > Error :
var next_token : Dictionary = { type = null }
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if next_tokens . size ( ) > 0 :
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next_token = next_tokens . front ( )
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# Guard for assigning in a condition. If the assignment token isn't inside a Lua dictionary
# then it's an unexpected assignment in a condition line.
if token . type == DialogueConstants . TOKEN_ASSIGNMENT and line_type == DialogueConstants . TYPE_CONDITION and not next_tokens . any ( func ( t ) : return t . type == expected_close_token ) :
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return DialogueConstants . ERR_UNEXPECTED_ASSIGNMENT
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# Special case for a negative number after this one
if token . type == DialogueConstants . TOKEN_NUMBER and next_token . type == DialogueConstants . TOKEN_NUMBER and next_token . value . begins_with ( " - " ) :
return OK
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var expected_token_types = [ ]
var unexpected_token_types = [ ]
match token . type :
DialogueConstants . TOKEN_FUNCTION , \
DialogueConstants . TOKEN_PARENS_OPEN :
unexpected_token_types = [
null ,
DialogueConstants . TOKEN_COMMA ,
DialogueConstants . TOKEN_COLON ,
DialogueConstants . TOKEN_COMPARISON ,
DialogueConstants . TOKEN_ASSIGNMENT ,
DialogueConstants . TOKEN_OPERATOR ,
DialogueConstants . TOKEN_AND_OR ,
DialogueConstants . TOKEN_DOT
]
DialogueConstants . TOKEN_BRACKET_CLOSE :
unexpected_token_types = [
DialogueConstants . TOKEN_NOT ,
DialogueConstants . TOKEN_BOOL ,
DialogueConstants . TOKEN_STRING ,
DialogueConstants . TOKEN_NUMBER ,
DialogueConstants . TOKEN_VARIABLE
]
DialogueConstants . TOKEN_BRACE_OPEN :
expected_token_types = [
DialogueConstants . TOKEN_STRING ,
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DialogueConstants . TOKEN_VARIABLE ,
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DialogueConstants . TOKEN_NUMBER ,
DialogueConstants . TOKEN_BRACE_CLOSE
]
DialogueConstants . TOKEN_PARENS_CLOSE , \
DialogueConstants . TOKEN_BRACE_CLOSE :
unexpected_token_types = [
DialogueConstants . TOKEN_NOT ,
DialogueConstants . TOKEN_ASSIGNMENT ,
DialogueConstants . TOKEN_BOOL ,
DialogueConstants . TOKEN_STRING ,
DialogueConstants . TOKEN_NUMBER ,
DialogueConstants . TOKEN_VARIABLE
]
DialogueConstants . TOKEN_COMPARISON , \
DialogueConstants . TOKEN_OPERATOR , \
DialogueConstants . TOKEN_COMMA , \
DialogueConstants . TOKEN_DOT , \
DialogueConstants . TOKEN_NOT , \
DialogueConstants . TOKEN_AND_OR , \
DialogueConstants . TOKEN_DICTIONARY_REFERENCE :
unexpected_token_types = [
null ,
DialogueConstants . TOKEN_COMMA ,
DialogueConstants . TOKEN_COLON ,
DialogueConstants . TOKEN_COMPARISON ,
DialogueConstants . TOKEN_ASSIGNMENT ,
DialogueConstants . TOKEN_OPERATOR ,
DialogueConstants . TOKEN_AND_OR ,
DialogueConstants . TOKEN_PARENS_CLOSE ,
DialogueConstants . TOKEN_BRACE_CLOSE ,
DialogueConstants . TOKEN_BRACKET_CLOSE ,
DialogueConstants . TOKEN_DOT
]
DialogueConstants . TOKEN_COLON :
unexpected_token_types = [
DialogueConstants . TOKEN_COMMA ,
DialogueConstants . TOKEN_COLON ,
DialogueConstants . TOKEN_COMPARISON ,
DialogueConstants . TOKEN_ASSIGNMENT ,
DialogueConstants . TOKEN_OPERATOR ,
DialogueConstants . TOKEN_AND_OR ,
DialogueConstants . TOKEN_PARENS_CLOSE ,
DialogueConstants . TOKEN_BRACE_CLOSE ,
DialogueConstants . TOKEN_BRACKET_CLOSE ,
DialogueConstants . TOKEN_DOT
]
DialogueConstants . TOKEN_BOOL , \
DialogueConstants . TOKEN_STRING , \
DialogueConstants . TOKEN_NUMBER :
unexpected_token_types = [
DialogueConstants . TOKEN_NOT ,
DialogueConstants . TOKEN_ASSIGNMENT ,
DialogueConstants . TOKEN_BOOL ,
DialogueConstants . TOKEN_STRING ,
DialogueConstants . TOKEN_NUMBER ,
DialogueConstants . TOKEN_VARIABLE ,
DialogueConstants . TOKEN_FUNCTION ,
DialogueConstants . TOKEN_PARENS_OPEN ,
DialogueConstants . TOKEN_BRACE_OPEN ,
DialogueConstants . TOKEN_BRACKET_OPEN
]
DialogueConstants . TOKEN_VARIABLE :
unexpected_token_types = [
DialogueConstants . TOKEN_NOT ,
DialogueConstants . TOKEN_BOOL ,
DialogueConstants . TOKEN_STRING ,
DialogueConstants . TOKEN_NUMBER ,
DialogueConstants . TOKEN_VARIABLE ,
DialogueConstants . TOKEN_FUNCTION ,
DialogueConstants . TOKEN_PARENS_OPEN ,
DialogueConstants . TOKEN_BRACE_OPEN ,
DialogueConstants . TOKEN_BRACKET_OPEN
]
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if ( expected_token_types . size ( ) > 0 and not next_token . type in expected_token_types or unexpected_token_types . size ( ) > 0 and next_token . type in unexpected_token_types ) :
match next_token . type :
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null :
return DialogueConstants . ERR_UNEXPECTED_END_OF_EXPRESSION
DialogueConstants . TOKEN_FUNCTION :
return DialogueConstants . ERR_UNEXPECTED_FUNCTION
DialogueConstants . TOKEN_PARENS_OPEN , \
DialogueConstants . TOKEN_PARENS_CLOSE :
return DialogueConstants . ERR_UNEXPECTED_BRACKET
DialogueConstants . TOKEN_COMPARISON , \
DialogueConstants . TOKEN_ASSIGNMENT , \
DialogueConstants . TOKEN_OPERATOR , \
DialogueConstants . TOKEN_NOT , \
DialogueConstants . TOKEN_AND_OR :
return DialogueConstants . ERR_UNEXPECTED_OPERATOR
DialogueConstants . TOKEN_COMMA :
return DialogueConstants . ERR_UNEXPECTED_COMMA
DialogueConstants . TOKEN_COLON :
return DialogueConstants . ERR_UNEXPECTED_COLON
DialogueConstants . TOKEN_DOT :
return DialogueConstants . ERR_UNEXPECTED_DOT
DialogueConstants . TOKEN_BOOL :
return DialogueConstants . ERR_UNEXPECTED_BOOLEAN
DialogueConstants . TOKEN_STRING :
return DialogueConstants . ERR_UNEXPECTED_STRING
DialogueConstants . TOKEN_NUMBER :
return DialogueConstants . ERR_UNEXPECTED_NUMBER
DialogueConstants . TOKEN_VARIABLE :
return DialogueConstants . ERR_UNEXPECTED_VARIABLE
return DialogueConstants . ERR_INVALID_EXPRESSION
return OK
func tokens_to_list ( tokens : Array [ Dictionary ] ) - > Array [ Array ] :
var list : Array [ Array ] = [ ]
var current_item : Array [ Dictionary ] = [ ]
for token in tokens :
if token . type == DialogueConstants . TOKEN_COMMA :
list . append ( current_item )
current_item = [ ]
else :
current_item . append ( token )
if current_item . size ( ) > 0 :
list . append ( current_item )
return list
func tokens_to_dictionary ( tokens : Array [ Dictionary ] ) - > Dictionary :
var dictionary = { }
for i in range ( 0 , tokens . size ( ) ) :
if tokens [ i ] . type == DialogueConstants . TOKEN_COLON :
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if tokens . size ( ) == i + 2 :
dictionary [ tokens [ i - 1 ] ] = tokens [ i + 1 ]
else :
dictionary [ tokens [ i - 1 ] ] = { type = DialogueConstants . TOKEN_GROUP , value = tokens . slice ( i + 1 ) }
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return dictionary
func find_match ( input : String ) - > Dictionary :
for key in TOKEN_DEFINITIONS . keys ( ) :
var regex = TOKEN_DEFINITIONS . get ( key )
var found = regex . search ( input )
if found :
return {
type = key ,
remaining_text = input . substr ( found . strings [ 0 ] . length ( ) ) ,
value = found . strings [ 0 ]
}
return { }