digitalmars.D.announce - isNumeric.d - I'd like to contribute to Digital Mars D
- David L. Davis (370/370) Jun 01 2005 I'd like to share what I've written which may help others in their own D...
- Andrew Fedoniouk (8/387) Jun 02 2005 Cool!
- Derek Parnell (8/15) Jun 02 2005 I just wrote one of those a couple of days ago. Its a part of a new
- Derek Parnell (10/23) Jun 02 2005 Content-type: text/plain; charset="us-ascii"
- Kris (12/33) Jun 02 2005 Cool!
- pragma (6/15) Jun 03 2005 [reading dtoa.c]
- kris (5/30) Jun 03 2005 First time I read through dtoa.c, I was about half way through and
- Sean Kelly (5/9) Jun 03 2005 The best part about this profession is being hired to maintain code like...
- Andrew Fedoniouk (11/32) Jun 02 2005 Nice, Derek,
- Derek Parnell (9/17) Jun 02 2005 This was ported from another language and before the boxer module was
- David L. Davis (245/251) Jun 02 2005 Andrew, here's what I came up with so far...what do you think?
- David L. Davis (345/351) Jun 03 2005 Here's a working copy! My first one I stayed up too late working on it a...
I'd like to share what I've written which may help others in their own D code, and wish to contribute this code to Digital Mars D if Walter will accept it. I'm not sure exactly which module this code would best fit in if it's accepted, whether that would be in the std.string, std.math, or maybe in some a new std.misc module. But anyway, I found that I needed a isNumeric() function for my variant (user-defined) datatype project, and already know I'll find it very useful in checking for numeric strings. After creating this code, I decided to scan the web for code others might have written for a isNumeric() function and to see if I might have missed anything important in my own function. But, to my surprise I found that most of them did something that was more of a isDigits() function than a isNumeric() function...which I thought was pretty darn odd. Well, I hope someone will find this code a tat-bit useful...enjoy! :) David L. ------------------------------------------------------------------- "Dare to reach for the Stars...Dare to Dream, Build, and Achieve!" ------------------------------------------------------------------- MKoD: http://spottedtiger.tripod.com/D_Language/D_Main_XP.html
Jun 01 2005
Cool! David, would it be possible to write also toNumeric ? Like this: std.boxer.Box toNumeric(const char[] s, bool bAllowSep = false) ? Andrew. "David L. Davis" <SpottedTiger yahoo.com> wrote in message news:d7m0nf$3s0$1 digitaldaemon.com...I'd like to share what I've written which may help others in their own D code, and wish to contribute this code to Digital Mars D if Walter will accept it. I'm not sure exactly which module this code would best fit in if it's accepted, whether that would be in the std.string, std.math, or maybe in some a new std.misc module. But anyway, I found that I needed a isNumeric() function for my variant (user-defined) datatype project, and already know I'll find it very useful in checking for numeric strings. After creating this code, I decided to scan the web for code others might have written for a isNumeric() function and to see if I might have missed anything important in my own function. But, to my surprise I found that most of them did something that was more of a isDigits() function than a isNumeric() function...which I thought was pretty darn odd. Well, I hope someone will find this code a tat-bit useful...enjoy! :) David L. ------------------------------------------------------------------- "Dare to reach for the Stars...Dare to Dream, Build, and Achieve!" ------------------------------------------------------------------- MKoD: http://spottedtiger.tripod.com/D_Language/D_Main_XP.html
Jun 02 2005
On Thu, 2 Jun 2005 15:26:27 -0700, Andrew Fedoniouk wrote:Cool! David, would it be possible to write also toNumeric ? Like this: std.boxer.Box toNumeric(const char[] s, bool bAllowSep = false)I just wrote one of those a couple of days ago. Its a part of a new application I'm writing but I guess I can split it out ... give me a few moments ... -- Derek Melbourne, Australia 3/06/2005 8:57:45 AM
Jun 02 2005
Content-type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Fri, 3 Jun 2005 08:59:41 +1000, Derek Parnell wrote:On Thu, 2 Jun 2005 15:26:27 -0700, Andrew Fedoniouk wrote:Here is my version attached ;-) real TextToNumber( dchar[] pText, out int pStopPosn, bool pNotify = true); Hope somebody finds it useful. -- Derek Melbourne, Australia 3/06/2005 10:32:49 AMCool! David, would it be possible to write also toNumeric ? Like this: std.boxer.Box toNumeric(const char[] s, bool bAllowSep = false)I just wrote one of those a couple of days ago. Its a part of a new application I'm writing but I guess I can split it out ... give me a few moments ...
Jun 02 2005
Cool! Mango.format has similar stuff for formatting and parsing numbers: e.g. http://svn.dsource.org/projects/mango/trunk/mango/format/Double.d There's also a more powerful version using David Gay's dtoa.c code. You really should take a look at what that C file does ~ it's kinda' frightening! http://svn.dsource.org/projects/mango/trunk/mango/format/dtoa.c http://svn.dsource.org/projects/mango/trunk/mango/format/DGDouble.d - Kris "Derek Parnell" <derek psych.ward> wrote in message news:bo1091wvq352$.1noqjnreoaasw$.dlg 40tude.net...On Fri, 3 Jun 2005 08:59:41 +1000, Derek Parnell wrote:true);On Thu, 2 Jun 2005 15:26:27 -0700, Andrew Fedoniouk wrote:Here is my version attached ;-) real TextToNumber( dchar[] pText, out int pStopPosn, bool pNotify =Cool! David, would it be possible to write also toNumeric ? Like this: std.boxer.Box toNumeric(const char[] s, bool bAllowSep = false)I just wrote one of those a couple of days ago. Its a part of a new application I'm writing but I guess I can split it out ... give me a few moments ...Hope somebody finds it useful. -- Derek Melbourne, Australia 3/06/2005 10:32:49 AM
Jun 02 2005
In article <d7odh0$2mv2$1 digitaldaemon.com>, Kris says...Cool! Mango.format has similar stuff for formatting and parsing numbers: e.g. http://svn.dsource.org/projects/mango/trunk/mango/format/Double.d There's also a more powerful version using David Gay's dtoa.c code. You really should take a look at what that C file does ~ it's kinda' frightening! http://svn.dsource.org/projects/mango/trunk/mango/format/dtoa.c http://svn.dsource.org/projects/mango/trunk/mango/format/DGDouble.d - Kris[reading dtoa.c] "kinda' frigtening" doesn't even begin to describe it. Not only am I reminded of why I switched to D, but I actually feel a touch queasy now. Here's to cleaner solutions and better looking code. - EricAnderton at yahoo
Jun 03 2005
pragma wrote:In article <d7odh0$2mv2$1 digitaldaemon.com>, Kris says...First time I read through dtoa.c, I was about half way through and thinking "egad! what the feck?" when up pops a comment in the code saying "Now, here's the difficult stuff" ... I knew, at that point, that I was completely out of my depth.Cool! Mango.format has similar stuff for formatting and parsing numbers: e.g. http://svn.dsource.org/projects/mango/trunk/mango/format/Double.d There's also a more powerful version using David Gay's dtoa.c code. You really should take a look at what that C file does ~ it's kinda' frightening! http://svn.dsource.org/projects/mango/trunk/mango/format/dtoa.c http://svn.dsource.org/projects/mango/trunk/mango/format/DGDouble.d - Kris[reading dtoa.c] "kinda' frigtening" doesn't even begin to describe it. Not only am I reminded of why I switched to D, but I actually feel a touch queasy now. Here's to cleaner solutions and better looking code. - EricAnderton at yahoo
Jun 03 2005
Sean Kelly <sean f4.ca> In article <d7pvni$rsr$1 digitaldaemon.com>, kris says...First time I read through dtoa.c, I was about half way through and thinking "egad! what the feck?" when up pops a comment in the code saying "Now, here's the difficult stuff" ... I knew, at that point, that I was completely out of my depth.The best part about this profession is being hired to maintain code like that. Perhaps back when that stuff was actually written the few CPU cycles it saved over a readable design were actually important ;) Sean
Jun 03 2005
"Derek Parnell" <derek psych.ward> wrote in message news:bo1091wvq352$.1noqjnreoaasw$.dlg 40tude.net...On Fri, 3 Jun 2005 08:59:41 +1000, Derek Parnell wrote:Nice, Derek, One thought: to have returning value as box allows: 1) to detect was it value at all; 2) to select the most compact storage form. 3) to be more precise - casting real to int is always something from fuzzy logic field. Just my guess. Andrew.On Thu, 2 Jun 2005 15:26:27 -0700, Andrew Fedoniouk wrote:Here is my version attached ;-) real TextToNumber( dchar[] pText, out int pStopPosn, bool pNotify = true); Hope somebody finds it useful.Cool! David, would it be possible to write also toNumeric ? Like this: std.boxer.Box toNumeric(const char[] s, bool bAllowSep = false)I just wrote one of those a couple of days ago. Its a part of a new application I'm writing but I guess I can split it out ... give me a few moments ...-- Derek Melbourne, Australia 3/06/2005 10:32:49 AM
Jun 02 2005
On Thu, 2 Jun 2005 21:33:45 -0700, Andrew Fedoniouk wrote:
[snip]
One thought:
to have returning value as box allows:
1) to detect was it value at all;
2) to select the most compact storage form.
3) to be more precise - casting real to int is always something from
fuzzy logic field.
This was ported from another language and before the boxer module was
available.
I'll have go at implementing your suggestion though ... wish me luck ;-)
--
Derek
Melbourne, Australia
3/06/2005 3:01:16 PM
Jun 02 2005
In article <d7o12k$2dv4$1 digitaldaemon.com>, Andrew Fedoniouk says...Cool! David, would it be possible to write also toNumeric ? Like this: std.boxer.Box toNumeric(const char[] s, bool bAllowSep = false) ? Andrew.Andrew, here's what I came up with so far...what do you think? (Note: that this uses the isNumeric.d code as an import) Output: ----------------- C:\dmd>dmd tonumeric.d isNumeric.d -release C:\dmd\bin\..\..\dm\bin\link.exe tonumeric+isNumeric,,,user32+kernel32/noi; C:\dmd>tonumeric unbox!(uint)(wx)=123 unbox!(long)(wx)=-12 unbox!(double)(wx)= 1.234 unbox!(ifloat)(wx= 1.234 unbox!(float)(wx)=1.234e+12 C:\dmd> David L. ------------------------------------------------------------------- "Dare to reach for the Stars...Dare to Dream, Build, and Achieve!" ------------------------------------------------------------------- MKoD: http://spottedtiger.tripod.com/D_Language/D_Main_XP.html
Jun 02 2005
In article <d7o12k$2dv4$1 digitaldaemon.com>, Andrew Fedoniouk says...Cool! David, would it be possible to write also toNumeric ? Like this: std.boxer.Box toNumeric(const char[] s, bool bAllowSep = false) ? Andrew.Here's a working copy! My first one I stayed up too late working on it and I made a few mistakes...which they're all fixed in this version. The nice thing about this code, is that it uses Phobos' builded in std.boxer and std.conv functions to do its work, which are already within the runtime library. Except of course for the isNumeric() function which can be found at the begnning of this thread. Well, I hope this does the trick...but it will be kool to see what others will come up with! ;) strings. string."); Output: ---------- C:\dmd>dmd tonumeric.d isnumeric.d -release C:\dmd\bin\..\..\dm\bin\link.exe tonumeric+isnumeric,,,user32+kernel32/noi; C:\dmd>tonumeric unbox!(uint)(wx)=123456 unbox!(long)(wx)= -124599 unbox!(double)(wx)= 1.234 unbox!(ifloat)(wx)=1.234 unbox!(float)(wx)=1.234e+12 unbox!(creal)(wx)=1.234e+12+3.454e+36i unbox!(creal)(wx)=nan+0i C:\dmd> David L. ------------------------------------------------------------------- "Dare to reach for the Stars...Dare to Dream, Build, and Achieve!" ------------------------------------------------------------------- MKoD: http://spottedtiger.tripod.com/D_Language/D_Main_XP.html
Jun 03 2005