Slick EDIT V3.3 Manual Do Utilizador
Example
Description
UNIX regular expression:
Search for: (if|while)
Replace with: x\1y\2
Search for: (if|while)
Replace with: x\1y\2
SlickEdit
®
regular expression:
Search for: {if|while}
Replace with: x#0y#1
Replace with: x#0y#1
Brief regular expression:
Search for: {{if}|while}}
Replace with: x\0y\1
Search for: {{if}|while}}
Replace with: x\0y\1
Replace occurrences of "if" and "while" with "xify"
and "xwhiley." Unmatched groups are null. Note:
The UNIX syntax \2 (SlickEdit syntax #1, Brief syn-
tax \1) is replaced with null.
and "xwhiley." Unmatched groups are null. Note:
The UNIX syntax \2 (SlickEdit syntax #1, Brief syn-
tax \1) is replaced with null.
UNIX regular expression:
Search for: ^(.*?),(.*)$
Replace with: \2,\1
Search for: ^(.*?),(.*)$
Replace with: \2,\1
SlickEdit regular expression:
Search for: ^{?*},{?*}$
Replace with: #1,#0
Search for: ^{?*},{?*}$
Replace with: #1,#0
Brief regular expression:
Search for: ^{*},{*}$
Replace with: \1,\0
Search for: ^{*},{*}$
Replace with: \1,\0
Reverse text on lines containing a comma. Lines
with "abc,def" will be changed to "def,abc." Notice
that the UNIX regular expression search string uses
a minimal matching operator *? so that the comma
actually matches the first comma in the line and not
the last.
with "abc,def" will be changed to "def,abc." Notice
that the UNIX regular expression search string uses
a minimal matching operator *? so that the comma
actually matches the first comma in the line and not
the last.
Minimal versus Maximal Matching
If you are using tagged expressions or regular expressions to perform a search and replace, you need to
understand the difference between the minimal and maximal operators.
understand the difference between the minimal and maximal operators.
Take, for example, a line of text which contains a DOS file name: \path1\path2\path3\name.ext.
The regular expression ^\\.*?\\ (UNIX), ^\\?*\\ (SlickEdit
®
), or <\\*\\ (Brief) will match the string \path1\.
The regular expression ^\\.*\\ (UNIX), ^\\?@\\ (SlickEdit), or <\\\:*\\ (Brief), which uses the maximal oper-
ator, matches the string \path\path2\path3\.
ator, matches the string \path\path2\path3\.
As a rule of thumb, you will usually want to use the minimal matching operators *? (UNIX), * (SlickEdit), or
@ (Brief) and +? (UNIX), + (SlickEdit/Brief) after a less-specific regular expression such as . (UNIX) or ?
(SlickEdit/Brief).
@ (Brief) and +? (UNIX), + (SlickEdit/Brief) after a less-specific regular expression such as . (UNIX) or ?
(SlickEdit/Brief).
You will usually want to use the maximal matching operators after a regular expression which matches
something more specific. For example, to search for a string of digits and prefix each string of digits with
the character $, you would specify the following in the Replace tab of the Find and Replace view:
something more specific. For example, to search for a string of digits and prefix each string of digits with
the character $, you would specify the following in the Replace tab of the Find and Replace view:
• UNIX regular expression:
Search for: ([0-9]+)
Replace with: $\1
Replace with: $\1
Find and Replace with Regular
Expressions
195