gui/PPTextHighlighter.st
author Jan Vrany <jan.vrany@fit.cvut.cz>
Mon, 24 Aug 2015 15:34:14 +0100
changeset 524 f6f68d32de73
parent 334 1db7e42031c8
permissions -rw-r--r--
Merged in PetitCompiler-JanVrany.170, PetitCompiler-Tests-JanKurs.116, PetitCompiler-Extras-Tests-JanKurs.29, PetitCompiler-Benchmarks-JanKurs.19 Name: PetitCompiler-JanVrany.170 Author: JanVrany Time: 24-08-2015, 03:19:51.340 PM UUID: c20a744f-3b41-4aaa-bb8a-71ce74a2a952 Name: PetitCompiler-Tests-JanKurs.116 Author: JanKurs Time: 24-08-2015, 11:37:54.332 AM UUID: 549e0927-358a-4a1b-8270-050ccfcb4217 Name: PetitCompiler-Extras-Tests-JanKurs.29 Author: JanKurs Time: 24-08-2015, 11:36:52.503 AM UUID: ea1dbb67-f884-4237-8f34-adb0677c0954 Name: PetitCompiler-Benchmarks-JanKurs.19 Author: JanKurs Time: 24-08-2015, 11:48:47.045 AM UUID: 1c342fdb-8ddd-4104-9c47-a8f589c51694

"{ Package: 'stx:goodies/petitparser/gui' }"

Object subclass:#PPTextHighlighter
	instanceVariableNames:'parser attributeMapper'
	classVariableNames:''
	poolDictionaries:''
	category:'PetitGui-Core'
!


!PPTextHighlighter methodsFor:'accessing'!

attributeMapper 
	"returns a dictionary with keys corresponding to parser names and 
	values corresponding to a collection of TextAttributes"
	^ attributeMapper
!

attributeMapper: aDictionary 
	attributeMapper := aDictionary
!

parser
	^ parser
!

parser: aParser
	parser := aParser
! !

!PPTextHighlighter methodsFor:'initialization'!

initialize
	parser := #any asParser.
	attributeMapper := Dictionary new
! !

!PPTextHighlighter methodsFor:'public'!

addAttribute: aTextAttribute for: anElementString 
	| attributes |
	attributes := self attributeMapper at: anElementString ifAbsentPut: [OrderedCollection new].
	attributes add: aTextAttribute
!

bold: anElementString
	self addAttribute: TextEmphasis bold for: anElementString
!

color: anElementString with: aColor
	self addAttribute: (TextColor new color: aColor) for: anElementString
!

highlight: aString
	| text highlighter |
	text := aString asText.
	highlighter := parser transform: [ :p |
		attributeMapper at: p name
			ifPresent: [ :attributes | 
				p token ==> [ :token | 
					attributes do: [:each |
						text 
							addAttribute: each 
							from: token start 
							to: token stop ] ] ]
			ifAbsent: [ p ] ].
	highlighter parse: text.
	^ text
! !

!PPTextHighlighter class methodsFor:'documentation'!

version
    ^ '$Header: /cvs/stx/stx/goodies/petitparser/gui/PPTextHighlighter.st,v 1.1 2014-03-04 21:15:00 cg Exp $'
!

version_CVS
    ^ '$Header: /cvs/stx/stx/goodies/petitparser/gui/PPTextHighlighter.st,v 1.1 2014-03-04 21:15:00 cg Exp $'
! !