When the data format is predictable (and it is OK to error when it is not) then some people use hard-coded reading like this:
| rs number1 number2 number3 |
rs := '9.7087988 @ 105.51043623333334 17421.193339188103' readStream.
number1 := Double readFrom: rs.
rs next: 3.
number2 := Double readFrom: rs.
rs next.
number3 := Double readFrom: rs.
Array with: number1 with: number2 with: number3
#(9.7087988d 105.51043623333d 17421.193339188d)
What you use would likely be some variant of the three examples.
-----Original Message-----
From: Paul Baumann
Sent: Friday, June 20, 2014 09:58
To: 'lhhuong';
[hidden email]
Subject: RE: [vwnc] Get float number from string?
Here is one way:
| string |
string := '9.7087988 @ 105.51043623333334 17421.193339188103'.
(string runsFailing: [:c | c isSeparator or: [c == $@]])
collect: [:ea | (ea, 'd') asNumber ]
OrderedCollection (9.7087988d 105.51043623333d 17421.193339188d)
Here is another:
| rs oc |
rs := '9.7087988 @ 105.51043623333334 17421.193339188103' readStream.
oc := OrderedCollection new.
[rs atEnd] whileFalse: [
rs peek isDigit
ifTrue: [oc add: (Double readFrom: rs)]
ifFalse: [rs next]
].
oc
OrderedCollection (9.7087988d 105.51043623333d 17421.193339188d)
Paul Baumann
-----Original Message-----
From:
[hidden email] [mailto:
[hidden email]] On Behalf Of lhhuong
Sent: Thursday, June 19, 2014 22:18
To:
[hidden email]
Subject: [vwnc] Get float number from string?
Hi everybody, I have a program to get data from text file.
I got a string with format as example: "9.7087988 @ 105.51043623333334 17421.193339188103"
I want to get 3 float number and store it into 3 variables:
number1: 9.7087988
number2: 105.51043623333334
number3: 17421.193339188103
What should I do?
Help me, please
--
View this message in context:
http://forum.world.st/Get-float-number-from-string-tp4763901.htmlSent from the VisualWorks mailing list archive at Nabble.com.
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