Gambas Documentation
Application Repository
Code Snippets
Compilation & Installation from source code
Components
gb
gb.args
gb.cairo
gb.chart
gb.clipper
gb.complex
gb.compress
gb.crypt
gb.data
gb.db
gb.db.form
gb.db.mysql
gb.db.odbc
gb.db.postgresql
gb.db.sqlite2
gb.db.sqlite3
gb.db2
gb.dbus
gb.dbus.trayicon
gb.debug
gb.desktop
gb.desktop.gnome.keyring
gb.desktop.x11
gb.eval
gb.eval.highlight
gb.form
gb.form.dialog
gb.form.editor
gb.form.htmlview
gb.form.mdi
gb.form.print
gb.form.stock
gb.form.terminal
gb.gmp
gb.gsl
gb.gtk
gb.gtk.opengl
gb.gtk3
gb.gtk3.opengl
gb.gtk3.webview
gb.gui
gb.gui.opengl
gb.gui.qt
gb.gui.qt.ext
gb.gui.qt.opengl
gb.gui.qt.webkit
gb.gui.trayicon
gb.gui.webview
gb.hash
gb.highlight
gb.image
gb.image.effect
gb.image.imlib
gb.image.io
gb.inotify
gb.jit
gb.libxml
gb.logging
gb.map
gb.markdown
gb.media
gb.media.form
gb.memcached
gb.mime
gb.mongodb
gb.mysql
gb.ncurses
gb.net
gb.net.curl
gb.net.pop3
gb.net.smtp
gb.openal
gb.opengl
gb.opengl.glsl
gb.opengl.glu
gb.opengl.sge
gb.openssl
gb.option
gb.pcre
.Regexp.Submatch
.Regexp.Submatches
RegExp
_get
_new
Anchored
BadMagic
BadOption
BadUTF8
BadUTF8Offset
Callout
Caseless
Compile
Count
DollarEndOnly
DotAll
Error
Exec
Extended
Extra
FindAll
Greedy
Match
MatchLimit
MultiLine
NoAutoCapture
NoMatch
NoMemory
NoSubstring
NotBOL
NotEmpty
NotEOL
NoUTF8Check
Null
Offset
Pattern
Replace
Subject
SubMatches
Text
Ungreedy
UnknownNode
UTF8
gb.pdf
gb.poppler
gb.qt4
gb.qt4.ext
gb.qt4.opengl
gb.qt4.webkit
gb.qt4.webview
gb.qt5
gb.qt5.ext
gb.qt5.opengl
gb.qt5.webkit
gb.qt5.webview
gb.qt6
gb.qt6.ext
gb.qt6.opengl
gb.qt6.webview
gb.report
gb.report2
gb.scanner
gb.sdl
gb.sdl.sound
gb.sdl2
gb.sdl2.audio
gb.settings
gb.signal
gb.term
gb.test
gb.util
gb.util.web
gb.v4l
gb.vb
gb.web
gb.web.feed
gb.web.form
gb.web.gui
gb.xml
gb.xml.html
gb.xml.rpc
gb.xml.xslt
Controls pictures
Deprecated components
Developer Documentation
Development Environment Documentation
Documents
Error Messages
Gambas Playground
How To's
Language Index
Language Overviews
Last Changes
Lexicon
README
Search the wiki
To Do
Topics
Tutorials
Wiki License
Wiki Manual

RegExp.Replace (gb.pcre)

Static Function Replace ( Subject As String, Pattern As String, Replace As String [ , CompileOptions As Integer, ExecOptions As Integer ] ) As String

Since 3.5

Find all occurences of the specified Pattern in the Subject, and return a string where they are all replaced by the Replace string.

If the Pattern has submatches, then they can be substituted in the Replace string, by using the same syntax as the Subst$ function: &1 is replaced by the first submatch, &2 by the second, and so on.

The pattern is always compiled by default with the Ungreedy compile flag set, i.e. the greediness of all quantifiers is inverted. In particular the "+" and "*" quantifiers are ungreedy.

Since 3.9.3

You can turn this behavior off by setting the RegExp.Greedy flag in CompileOptions.

Because the greediness of quantifiers is reversed by default, it is advisable not to confuse your future self and to avoid ungreedy versions of quantifiers, i.e. "+?" and "*?", if possible. Set the RegExp.Greedy flag instead.

Examples

Print RegExp.Replace("How much wood would a woodchuck chuck if a woodchuck could chuck wood ?", "(chuck|wood)", "[&1 norris]")
How much [wood norris] would a [wood norris][chuck norris] [chuck norris] if a [wood norris][chuck norris] could [chuck norris] [wood norris] ?

See also